CN101745539B - Opening device for machine cover of tube rolling mill - Google Patents
Opening device for machine cover of tube rolling mill Download PDFInfo
- Publication number
- CN101745539B CN101745539B CN2009102639606A CN200910263960A CN101745539B CN 101745539 B CN101745539 B CN 101745539B CN 2009102639606 A CN2009102639606 A CN 2009102639606A CN 200910263960 A CN200910263960 A CN 200910263960A CN 101745539 B CN101745539 B CN 101745539B
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- China
- Prior art keywords
- cover
- hydraulic cylinder
- frame
- machine cover
- hinged
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- 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 invention discloses an opening device for a machine cover of a tube rolling mill and relates to the machine cover of the tube rolling mill in seamless steel tube production. The opening device comprises a frame, the machine cover, a hydraulic cylinder base fixed on the frame and a hydraulic cylinder hinged with the hydraulic cylinder base by a cylinder trunnion. The piston rod trunnion of the hydraulic cylinder is hinged with the machine cover by a hinged shaft, and one end of the machine cover is hinged with the frame by a rotating shaft. The opening device is characterized in that the hinged shaft is extended and penetrates through the machine cover to be screwed down by nuts and then fixed by welding. The hydraulic cylinder base is fixed on the frame by welding, and a weld groove is arranged on the frame. The hinged shaft is matched and connected with the steel plate hole of the machine cover and is fixed on both ends of the steel plate of the machine cover by welding. The invention solves the safety hazard problems of the existing opening device for the machine cover of the tube rolling mill and has the advantages of reliable connection, long use life and high safety factor.
Description
Technical field
The invention belongs to rolling machinery, relate to the cover of pipe mill in a kind of seamless steel tube production.
Background technology
In the seamless steel tube production, pipe mill often need be changed roll, will be with apparatus lid opening when the pipe mill of open top roll housing is changed roll.The device for opening of existing machine cover of tube rolling mill is shown in Fig. 1,2,3,5,7,9: hydraulic cylinder base 1 is welded on the frame 5, hydraulic cylinder base 1 is hinged with the cylinder barrel gudgeon 2-1 of hydraulic cylinder 2, the piston rod earrings 2-2 of hydraulic cylinder 2 is hinged by hinge 3 and cover 6, hinge 3 is to be welded on the cover 6, and an end of cover 6 is hinged by rotating shaft 7 and frame 5.During work, the piston rod of hydraulic cylinder 2 stretches out cover 6 jack-up, and cover 6 is around rotating shaft 7 maximum angle of tumbling.In the apparatus lid opening process, the strong point of device for opening: hinge 3 and hydraulic cylinder base 1 will bear the tens of ton of weighing, up to the bending and the shear stress of tens of rice machine covers.Hinge 3 can be torn weld seam W, X when stressed and damage (see figure 3); Hydraulic cylinder base 1 is out (to see Fig. 5,7,9) on the steel plate 1-1 of base 1 with the bevel for welding of frame 5, because the formed machine direction of steel plate rolling is parallel to surface of steel plate, therefore the machine direction of the steel plate 5-1 of frame 5 is identical with the machine direction of the weld seam U of frame 5 with hydraulic cylinder base 1, when hydraulic cylinder base 1 was stressed, weld seam U was subjected to tension, shear stress very easily is torn (seeing Fig. 7,9).Because the hinge 3 of prior art is all unreliable with the syndeton of frame 5 with the articulated structure and the hydraulic cylinder base 1 of the piston rod earrings 2-2 of hydraulic cylinder 2, cover 6, thereby in use exists bigger potential safety hazard.
Summary of the invention
Purpose of the present invention is intended to overcome the shortcoming of prior art, a kind of device for opening of machine cover of tube rolling mill is provided, has solved the security hidden trouble that existing machine cover of tube rolling mill device for opening exists, the apparatus lid opening device has been had connect reliably, long service life, the advantage that safety coefficient is high.
The present invention is achieved through the following technical solutions:
A kind of device for opening of machine cover of tube rolling mill, comprise: frame, cover, and be fixed on hydraulic cylinder base on the frame, pass through the hinged hydraulic cylinder of cylinder barrel gudgeon with hydraulic cylinder base, the piston rod earrings of hydraulic cylinder is hinged by hinge and cover, one end of cover is hinged by rotating shaft and frame, it is characterized in that: described hinge lengthening also passes described cover, tightens, welds described hinge and described cover fixing with nut; Described hydraulic cylinder base and frame welding are fixing, and its weld groove is opened on frame.
Described hinge is to cooperate connection with the steel plate hole of cover, and fixing in the welding of the steel plate two ends of cover.
The present invention compared with prior art because the hydraulic cylinder top hinge length that extended, and cooperates connection with the cover steel plate hole, thereby has increased the stability of hinge; Because the hydraulic cylinder top hinge length that extended, and exceed the thickness of cover steel plate, could implement at the steel plate two ends be welded to connect; Because the hydraulic cylinder top hinge length that extended, and exceed the thickness of cover steel plate, be provided with nut, just can overcome the friction that cooperates of hydraulic cylinder top hinge and cover steel plate hole, make hinge and steel plate not have the gap, guaranteed reliable connection thereby strain hinge; Because weld groove is opened on frame, pulling force when avoiding owing to welding stress and work is torn steel plate, guaranteed equipment dependability, eliminated deviating from and tear the accident potential that steel plate that the cylinder lower base is connected frame takes place owing to hydraulic cylinder top hinge.
Description of drawings
Fig. 1 is a kind of structural representation of machine cover of tube rolling mill device for opening;
Fig. 2 is that the A of Fig. 1 is to view;
Fig. 3 is the hinge connection diagram of prior art;
Fig. 4 is a hinge connection diagram of the present invention;
Fig. 5 is the hydraulic cylinder base connection diagram of prior art;
Fig. 6 is a hydraulic cylinder base connection diagram of the present invention;
Fig. 7 is that the C of Fig. 5 is to view;
Fig. 8 is that the D of Fig. 6 is to view;
Fig. 9 is that Fig. 7 removes weld seam and shows the schematic diagram that connects groove specially;
Figure 10 is that Fig. 8 removes weld seam and shows the schematic diagram that connects groove specially.
The present invention is further illustrated by preferred embodiment below in conjunction with accompanying drawing.
The specific embodiment
Shown in Fig. 1, Fig. 2,4,6,8,10, a kind of machine cover of tube rolling mill device for opening, comprise: frame 5, cover 6, and be fixed on hydraulic cylinder base 1 on the frame 5, pass through the hinged hydraulic cylinder 2 of cylinder barrel gudgeon 2-1 with hydraulic cylinder base 1, the piston rod earrings 2-2 of hydraulic cylinder 2 is hinged by hinge 3 and cover 6, one end of cover 6 is hinged by rotating shaft 7 and frame 5, described hinge 3 lengthenings also pass described cover 6, with nut 4 fixedly (see figure 4) is tightened, welded to described hinge 3 with described cover 6; Described hydraulic cylinder base 1 is fixing with frame 5 welding, and its weld groove is opened on frame 5 and (seen Fig. 6,8,10).
Described hinge 3 is to cooperate connection with the steel plate hole of cover 6, and welds fixedly (see figure 4) at the steel plate two ends of cover 6.
As shown in Figure 4, the present invention can not tear weld seam crack W, X when making hinge 3 stressed and formed protection because hinge 3 lengthening and nut 4 are strained and increased weld seam Z.
As Fig. 5, Fig. 7, shown in Figure 9, the bevel for welding of prior art is out on the steel plate 1-1 of base 1, because the formed machine direction of steel plate rolling is parallel to surface of steel plate, the fiber lines that drawn from figure are found out: because the material machine direction of the steel plate 5-1 of frame 5 is parallel to weld seam U, when so the base 1 of prior art is stressed and the welding stress stack of weld seam U itself can tear weld seam U, and the performance of bearing shearing force of weld seam U is bad.
As Fig. 6, Fig. 8, shown in Figure 10, the present invention opens bevel for welding on the steel plate 5-1 of frame 5, the fiber lines that drawn from figure are found out: because the material machine direction of steel plate 5-1 is perpendicular to weld seam V's, so base of the present invention 1 can not be torn weld seam V when stressed, and weld seam V bear the functional of shearing force.
The course of work of the present invention:
As shown in Figure 1, 2, during work, the piston rod of hydraulic cylinder 2 stretches out cover 6 jack-up, and cover 6 is around rotating shaft 7 maximum angle of tumbling, reverse operating when cover is closed.
Claims (2)
1. the device for opening of a machine cover of tube rolling mill, comprise: frame (5), cover (6), and be fixed on hydraulic cylinder base (1) on the frame (5), pass through the hinged hydraulic cylinder (2) of cylinder barrel gudgeon (2-1) with hydraulic cylinder base (1), the piston rod earrings (2-2) of hydraulic cylinder (2) is hinged by hinge (3) and cover (6), one end of cover (6) is hinged by rotating shaft (7) and frame (5), it is characterized in that: described hinge (3) extends and passes described cover (6), tightens, welds described hinge (3) and described cover (6) fixing with nut (4); Described hydraulic cylinder base (1) is fixing with frame (5) welding, and its weld groove is opened on frame (5).
2. according to the device for opening of the described machine cover of tube rolling mill of claim 1, it is characterized in that: described hinge (3) is to cooperate connection with the steel plate hole of cover (6), and fixing in the welding of the steel plate two ends of cover (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102639606A CN101745539B (en) | 2009-12-29 | 2009-12-29 | Opening device for machine cover of tube rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102639606A CN101745539B (en) | 2009-12-29 | 2009-12-29 | Opening device for machine cover of tube rolling mill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101745539A CN101745539A (en) | 2010-06-23 |
| CN101745539B true CN101745539B (en) | 2011-11-30 |
Family
ID=42473524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102639606A Expired - Fee Related CN101745539B (en) | 2009-12-29 | 2009-12-29 | Opening device for machine cover of tube rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101745539B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102814333B (en) * | 2012-08-31 | 2015-09-16 | 太原重工股份有限公司 | The three-roll pipe mill frame that a kind of tilt bed is opened |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101585048A (en) * | 2009-06-04 | 2009-11-25 | 无锡瑞佳精机有限公司 | A kind of modified roller bearing pedestal axial restraint device |
| EP1907143B1 (en) * | 2006-07-14 | 2009-12-16 | SMS Siemag AG | Device for rotationally locking the supporting roll balanced architecture of roll stands |
-
2009
- 2009-12-29 CN CN2009102639606A patent/CN101745539B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1907143B1 (en) * | 2006-07-14 | 2009-12-16 | SMS Siemag AG | Device for rotationally locking the supporting roll balanced architecture of roll stands |
| CN101585048A (en) * | 2009-06-04 | 2009-11-25 | 无锡瑞佳精机有限公司 | A kind of modified roller bearing pedestal axial restraint device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101745539A (en) | 2010-06-23 |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20111130 Termination date: 20211229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |