CN205110367U - Pull rod device and short stress line rolling mill - Google Patents
Pull rod device and short stress line rolling mill Download PDFInfo
- Publication number
- CN205110367U CN205110367U CN201520924628.0U CN201520924628U CN205110367U CN 205110367 U CN205110367 U CN 205110367U CN 201520924628 U CN201520924628 U CN 201520924628U CN 205110367 U CN205110367 U CN 205110367U
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- CN
- China
- Prior art keywords
- gland
- telescoping tube
- pull rod
- roll case
- bar body
- 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 discloses a pull rod device and short stress line rolling mill. The device is in the gland with go up roll box and establish first flexible pipe the gland with roll box establishes the flexible pipe of second down, the flexible pipe of first flexible pipe, second is on all the pull rod body is located to the cover, flexible tub first one end sealing connection gland. Other end sealing connection goes up roll box, the flexible pipe one end sealing connection gland of second, roll box under the other end sealing connection. The utility model discloses a design is novel, on the basis that does not change original project organization, it is further sealed to the pull rod body, even rolling mill production site environment is abominable, the dust is big, tiny dust also can't be got into between the pull rod teeth of a cogwheel and the roll box teeth of a cogwheel by the fit clearance, effectively avoid the teeth of a cogwheel to kill, it adjusts smoothly to roll roller distance, the bevel gear live time that drives pull rod circumferential direction is long, reduce spare parts consumption, reducing production cost, reduce the rolling mill and overhaul the frequency, the effective operation ratio of rolling mill has been improved.
Description
Technical field
The utility model belongs to rod, wire rod rolling equipment technical field, particularly relates to a kind of pull rod device and short stress path rolling mill.
Background technology
Short stress path rolling mill is the visual plant of rolling rod, wire rod, extensively should in steel production enterprise and section bar manufacturing enterprise.Along with the fast development of these several years economy, the use amount of rod, wire rod significantly rises, and above-mentioned enterprise also produces in full load, but still cannot meet production requirement, and trace it to its cause, the service life of short stress path rolling mill is short, and effectively running rate is low.At present, the short stress path rolling mill that market is sold comprises pull rod device, the first frame, the second frame, top and bottom rolls and up-down rollers case, wherein pull rod device comprises bar body, bar body is placed in the second frame, and bar body is provided with the upper hermetically-sealed construction be made up of transparent cover, sealing ring, back-up ring from top to bottom successively; Hermetically-sealed construction in the twice be made up of gland, screw, O-ring seals, dust ring; The lower seal structure be made up of stifle, screw, packing ring, bar body is provided with the gear teeth and is meshed with the gear teeth that top roll case, lower roll case are established respectively, and bar body rotates and drives the relative movement of upper and lower roll case, so that regulates two roll shop building distances.Problems existing is, on the one hand due to upper, relative motion is there is between lower roll case and the second frame, roller case and the second frame are matched in clearance, gap is 0.05mm, and on, in lower roll case and twice, the gland spacing of hermetically-sealed construction is more than more than 10mm, relatively rotating is there is between the gland on the other hand due to bar body and middle hermetically-sealed construction, the gland of pull bar and middle hermetically-sealed construction is matched in clearance, gap is 0.1mm, although pull bar is provided with four seal structures, but milling train production on-site environment is severe, dust is large, tiny dust enters between the pull bar gear teeth and the roller case gear teeth by above-mentioned gap, the gear teeth are caused to kill, roll shop building is apart from regulating, the bevel gear driving pull bar circumference to rotate also can be caused to crumble, the consumption of spare part spare unit is large, increase production cost, maintenance down simultaneously, the effective running rate of extreme influence milling train.
Utility model content
In order to overcome the defect of prior art, the purpose of this utility model is to provide a kind of pull rod device, realizes bar body hermetically sealed, reduces dust and enters, avoid the pull bar gear teeth and the roller case gear teeth to kill.
A kind of pull rod device, comprise bar body, bar body is placed in the second frame, and bar body is provided with the upper hermetically-sealed construction be made up of transparent cover, sealing ring, back-up ring from top to bottom successively; Hermetically-sealed construction in the twice be made up of gland, screw, O-ring seals, dust ring; The lower seal structure be made up of stifle, screw, packing ring, bar body is provided with the gear teeth and is meshed with the gear teeth that top roll case, lower roll case are established respectively, be characterized in establishing the first telescoping tube at described gland and described top roll case, the second telescoping tube is established at described gland and described lower roll case, described first telescoping tube, the second telescoping tube are all sheathed on bar body, first telescoping tube one end is tightly connected gland, the other end is tightly connected top roll case, second telescoping tube one end is tightly connected gland, and the other end is tightly connected lower roll case.
The utility model improves further, described first telescoping tube, the second telescoping tube are bellows, the internal diameter of bellows is slightly larger than the external diameter of described bar body, external diameter is slightly less than the diameter of described gland, bellows can compress and elongation, in the longitudinal relative motion situation not hindering upper and lower roll case and the second frame, fully achieve the hermetically sealed of bar body.
The utility model improves further, and described first telescoping tube, the second telescoping tube are metal bellows, and the first flexible metal bellows two ends are respectively by the bonding gland of glue and top roll case, and the second flexible metal bellows two ends are respectively by the bonding gland of glue and lower roll case.
The utility model improves further, and described first telescoping tube, the second telescoping tube are rubber bellows, and the first telescopic rubber bellows two ends are respectively by the bonding gland of glue and top roll case, and the second telescopic rubber bellows two ends are respectively by the bonding gland of glue and lower roll case.
The utility model improves further, and described first telescoping tube, the second telescoping tube are elastic rubber tube, and owing to there is distortion when elastic rubber tube stretches, therefore the internal diameter of elastic rubber tube is greater than the external diameter of described bar body, and external diameter is slightly less than the diameter of described gland.
Another object of the present utility model is to provide a kind of short stress path rolling mill with above-mentioned pull rod device.
Compared with prior art, of the present utility model novel, on the basis not changing original project organization, bar body is sealed further, even if milling train production on-site environment is severe, dust is large, tiny dust also cannot enter between the pull bar gear teeth and the roller case gear teeth by fit clearance, effectively avoid the gear teeth to kill, roll shop building is smooth and easy apart from regulating, and the bevel gear driving pull bar circumference to rotate is long for service time, reduce the consumption of spare part spare unit, reduce production cost, reduce milling train repair rate, improve the effective running rate of milling train.
Accompanying drawing explanation
Fig. 1 is the assembly structure schematic diagram of the utility model pull rod device;
Fig. 2 is the A portion enlarged drawing of Fig. 1.
Detailed description of the invention
Below in conjunction with embodiment to the utility model row detailed description further.
As shown in Figure 1, 2, a kind of pull rod device comprises bar body 1, and bar body is placed in the second frame 2, and bar body is provided with the upper hermetically-sealed construction 3 be made up of transparent cover 31, sealing ring 32, back-up ring 33 from top to bottom successively; Hermetically-sealed construction 4 in the twice be made up of gland 41, screw 42, O-ring seals 43, dust ring 44; The lower seal structure 5 be made up of stifle 51, screw 52, packing ring 53, bar body is provided with the gear teeth and is meshed with the gear teeth that top roll case 6, lower roll case 7 are established respectively, the first telescoping tube 8 is established with described top roll case 6 at described gland 41, the second telescoping tube 9 is established with described lower roll case 7 at described gland 41, described first telescoping tube 8, second telescoping tube 9 is all sheathed on bar body 1, first telescoping tube 8 one end is tightly connected gland 41, the other end is tightly connected top roll case 6, second telescoping tube 9 one end is tightly connected gland 41, and the other end is tightly connected lower roll case 7.
In the present embodiment, because bellows can compress and elongation, in the longitudinal relative motion situation not hindering top roll case 6, lower roll case 7 and the second frame 2, described first telescoping tube 8, second telescoping tube 9 is bellows, the internal diameter of bellows is slightly larger than the external diameter of described bar body 1, external diameter is slightly less than the diameter of described gland 41, fully achieves the hermetically sealed of bar body.
In order to the life-span of the first telescoping tube 8, second telescoping tube 9 better extended, preferably described first telescoping tube 8, second telescoping tube 9 metal bellows, metal bellows two ends are stretched respectively by the bonding gland 41 of glue and lower roll case 7 by the bonding gland 41 of glue and top roll case 6, second respectively in first flexible metal bellows two ends.
The applicant is in R&D process, find that described first telescoping tube 8, second telescoping tube 9 is rubber bellows, the effect that can play equally, first telescopic rubber bellows two ends respectively by the bonding gland 41 of glue and top roll case 6, second telescopic rubber bellows two ends respectively by the bonding gland 41 of glue and lower roll case 7.
In addition, described first telescoping tube 8, second telescoping tube 9 can also be elastic rubber tube, and owing to there is distortion when elastic rubber tube stretches, therefore the internal diameter of elastic rubber tube is greater than the external diameter of described bar body 1, and external diameter is slightly less than the diameter of described gland 41.
The utility model also provides a kind of short stress path rolling mill with above-mentioned pull rod device.
Claims (6)
1. a pull rod device, comprise bar body (1), bar body is placed in the second frame (2), and bar body is provided with the upper hermetically-sealed construction (3) be made up of transparent cover (31), sealing ring (32), back-up ring (33) from top to bottom successively, hermetically-sealed construction (4) in the twice be made up of gland (41), screw (42), O-ring seals (43), dust ring (44), by stifle (51), screw (52), the lower seal structure (5) of packing ring (53), bar body be provided with the gear teeth respectively with top roll case (6), the gear teeth that lower roll case (7) is established are meshed, it is characterized in that, the first telescoping tube (8) is established described gland (41) and described top roll case (6), the second telescoping tube (9) is established described gland (41) and described lower roll case (7), described first telescoping tube (8), second flexible (9) are all sheathed on bar body (1), first telescoping tube (8) one end is tightly connected gland (41), the other end is tightly connected top roll case (6), second telescoping tube (9) one end is tightly connected gland (41), the other end is tightly connected lower roll case (7).
2. pull rod device according to claim 1, it is characterized in that, described first telescoping tube (8), the second telescoping tube (9) are bellows, the internal diameter of bellows is slightly larger than the external diameter of described bar body (1), and external diameter is slightly less than the diameter of described gland (41).
3. pull rod device according to claim 2, it is characterized in that, described first telescoping tube (8), the second telescoping tube (9) are metal bellows, first flexible metal bellows two ends are respectively by the bonding gland of glue (41) and top roll case (6), and the second flexible metal bellows two ends are respectively by the bonding gland of glue (41) and lower roll case (7).
4. pull rod device according to claim 2, it is characterized in that, described first telescoping tube (8), the second telescoping tube (9) are rubber bellows, first telescopic rubber bellows two ends are respectively by the bonding gland of glue (41) and top roll case (6), and the second telescopic rubber bellows two ends are respectively by the bonding gland of glue (41) and lower roll case (7).
5. pull rod device according to claim 1, it is characterized in that, described first telescoping tube (8), the second telescoping tube (9) are elastic rubber tube, the internal diameter of elastic rubber tube is greater than the external diameter of described bar body (1), and external diameter is slightly less than the diameter of described gland (41).
6. a short stress path rolling mill, comprises the pull rod device described in any one of claim 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924628.0U CN205110367U (en) | 2015-11-18 | 2015-11-18 | Pull rod device and short stress line rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520924628.0U CN205110367U (en) | 2015-11-18 | 2015-11-18 | Pull rod device and short stress line rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205110367U true CN205110367U (en) | 2016-03-30 |
Family
ID=55566015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520924628.0U Expired - Fee Related CN205110367U (en) | 2015-11-18 | 2015-11-18 | Pull rod device and short stress line rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205110367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377626A (en) * | 2017-07-25 | 2017-11-24 | 马鞍山市银鼎机械制造有限公司 | A kind of pull bar assembling structure of milling train |
-
2015
- 2015-11-18 CN CN201520924628.0U patent/CN205110367U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107377626A (en) * | 2017-07-25 | 2017-11-24 | 马鞍山市银鼎机械制造有限公司 | A kind of pull bar assembling structure of milling train |
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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: 20160330 Termination date: 20201118 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |