CN207271811U - A kind of roll stand attachment device - Google Patents
A kind of roll stand attachment device Download PDFInfo
- Publication number
- CN207271811U CN207271811U CN201721003110.9U CN201721003110U CN207271811U CN 207271811 U CN207271811 U CN 207271811U CN 201721003110 U CN201721003110 U CN 201721003110U CN 207271811 U CN207271811 U CN 207271811U
- Authority
- CN
- China
- Prior art keywords
- roll stand
- gear reducer
- catcher
- internal tooth
- tooth casing
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a kind of roll stand attachment device, including being capable of the base of stationary roll rack, positioning connecting plate, the roll stand being fixed on roll stand catcher and the gear reducer output internal tooth casing that can be connected with sizing mill gear reducer, the quantity of the base is two, the positioning connecting plate connects the one end for fixing two bases respectively, and the roll stand catcher is sequentially connected with gear reducer output internal tooth casing.In use, the overall dimensions that the roll stand for making ting model is engaged with base and positioning connecting plate increase, the sizing mill of big model can be suitable for, the roll stand of different model is used on same sizing mill, improve efficiency, save production cost.
Description
Technical field
Steel tube sizing mill field is the utility model is related to, more particularly to a kind of roll stand attachment device.
Background technology
Sizing mill is will to roll out the steel pipe come, through fixed diameter rolling after being reheated by stepping furnace, obtains the outer of degree of precision
Shape size.Sizing roller pass adjustment can not only individually adjust but also can two rollers adjust at the same time, sizing mill sizing roller is the main work of sizing
Tool, it is to be supported, rotated by Settle path Roll box inner bearing, and ensures correct position of the sizing roller in rack.Sizing mill is main
It is made of work housing and transmission device.Work housing is installed on unsplit bedplate, and rack is arranged in order, to a different inclinations
, make roll mandrel orthogonal horizontal by 45° angle, adjacent two breast rollers axis.Working stand is by rack, roll and axis
Hold, roll radial regulation device, roll axial adjusting device and base composition.Axially adjustable roll is by rotating double end spiral shell
Bolt, nut and adjustment bolt are realized.Radially adjustment is realized by housing screw.The purpose of sizing is always subtracted less
Under the conditions of footpath rate and single chassis reducing rate, steel pipe is rolled into have certain requirements dimensional accuracy and out of roundness, and further improve
Outer surface of steel tube quality.Steel pipe after sizing, diameter deviation is smaller, and ovality is smaller, and straight degree is preferable, any surface finish.
In actual production, the production order of small lot is often faced, the every kind of specification demands amount of steel pipe of standard is smaller,
Production can not be fully achieved on same unit, it is necessary to produced on two sets or three sets of units, complete the order of client, caused every
The task amount of a unit is less, virtually adds the production cost of enterprise.Meanwhile the order of some clients is non-standard for some
The steel pipe of outside diameter, or nonstandard high alloy steel pipe, or special heavy wall, length and longer product, quality requirement is very high,
To reducing mill stand how type selecting, the Lathe quantity of each frame, usage quantity must be stringent control.But because of sizing mill rack type version
Number difference, the height of roll stand is also inconsistent, and the roll stand of different model needs to use in different sizing mills, this
Undoubtedly considerably increase production cost.
Therefore, how to change in the prior art, what the roll stand of different model can not use in same sizing mill shows
Shape, is those skilled in the art's urgent problem to be solved.
Utility model content
The purpose of this utility model is to provide a kind of roll stand attachment device, to solve above-mentioned existing in the prior art ask
Topic, enables the roll stand of different model to be used in same sizing mill, improves sizing mill service efficiency, and saving is produced into
This.
To achieve the above object, the utility model provides following scheme：The utility model provides a kind of roll stand and connects
Connection device, including be capable of the base of stationary roll rack, position connecting plate, the roll stand being fixed on roll stand catcher and energy
Enough gear reducer output internal tooth casings being connected with sizing mill gear reducer, the quantity of the base is two, the positioning connecting plate difference
One end of two bases is fixed in connection, and the roll stand catcher is sequentially connected with gear reducer output internal tooth casing.
Preferably, the cross section of the base is U-shaped, and the base includes U-type groove, joint face and connection position, the company
The quantity of junction is two, and two joint faces are arranged on two lateral surfaces of the U-type groove, are set on the joint face
The first counterbore that can be connected with roll stand, the quantity of the connection position is four, and four connection positions are respectively arranged at
The both ends of the joint face, the connection position set the first threaded hole.
Preferably, the positioning connecting plate is rectangular configuration, and the both ends of the positioning connecting plate are set and first threaded hole
Matched second counterbore.
Preferably, roll stand attachment device further includes connection switch block and gear reducer output internal tooth casing catcher, the roll
Rack is taken over to be connected with the connection switch block, and the first raised, gear reducer output internal tooth socket is set on the connection switch block
It is provided with hand and the described first raised matched first groove, the gear reducer output internal tooth casing catcher and the gear reducer
Output internal tooth casing is connected.
Preferably, the second groove is set on the roll stand catcher, is provided with and described second on the connection switch block
The second of fit depressions is raised, and the connection switch block is cylindrical-shaped structure, and the described first raised and described second protrusion is respectively
It is arranged on two bottom surfaces of the connection switch block, the cross section of the described first raised and described second protrusion is rectangle, described the
One raised center line and the center line of the described second protrusion are perpendicular.
Preferably, third protrusion is also set up on the gear reducer output internal tooth casing catcher, the gear reducer exports internal tooth casing
On be provided with and be respectively arranged at institute with matched 3rd groove of the third protrusion, the third protrusion and first groove
State the upper opposite both ends of gear reducer output internal tooth casing catcher.
Preferably, the 3rd counterbore is also set up on the roll stand catcher, the quantity of the 3rd counterbore is four, four
3rd counterbore is arranged symmetrically relative to second groove.
Preferably, the gear reducer output internal tooth casing catcher is bolted with gear reducer output internal tooth casing, described to subtract
The internal thread that can be connected with sizing mill gear reducer is additionally provided with fast machine output internal tooth casing.
The utility model achieves following technique effect relative to the prior art：The roll stand connection dress of the utility model
Put including be capable of stationary roll rack base, position connecting plate, the roll stand being fixed on roll stand catcher and can be with
The gear reducer output internal tooth casing that sizing mill gear reducer is connected, the quantity of base is two, and positioning connecting plate connects respectively fixes two
One end of base, roll stand catcher are sequentially connected with gear reducer output internal tooth casing.In use, matched with base and positioning connecting plate
The overall dimensions increase for the roll stand for making ting model is closed, the sizing mill of big model can be suitable for, makes the roll of different model
Rack can use on same sizing mill, improve efficiency, save production cost.
Brief description of the drawings
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Needed in attached drawing be briefly described, it should be apparent that, drawings in the following description are only the utility model
Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the entirety being connected using the roll stand of the utility model roll stand attachment device with sizing mill gear reducer
Structure diagram；
Fig. 2 is the structure diagram of the base of the utility model roll stand attachment device；
Fig. 3 is the structure diagram of the side-looking direction of the base of the utility model roll stand attachment device；
Fig. 4 is the structure diagram that the positioning of the utility model roll stand attachment device is won in succession；
Fig. 5 is the structure diagram of the connection switch block of the utility model roll stand attachment device；
Fig. 6 is the left direction structure diagram of the connection switch block of the utility model roll stand attachment device；
Fig. 7 is the right direction structure diagram of the connection switch block of the utility model roll stand attachment device；
Fig. 8 is the structure diagram that the roll stand of the utility model roll stand attachment device is taken over；
Fig. 9 is that the gear reducer of the utility model roll stand attachment device exports the structure diagram of internal tooth casing；
Figure 10 is that the gear reducer of the utility model roll stand attachment device exports the cutting structure diagram of internal tooth casing；
Figure 11 is that the gear reducer of the utility model roll stand attachment device exports the cutting structure diagram of internal tooth casing；
Figure 12 is that the gear reducer of the utility model roll stand attachment device exports the structure diagram of internal tooth casing catcher；
Wherein, 1 is base, and 101 be U-type groove, and 102 be joint face, and 103 be connection position, and 104 be the first counterbore, and 2 be positioning
Win in succession, 201 be the second counterbore, and 3 take over for roll stand, and 301 be the second groove, and 302 be the 3rd counterbore, and 4 export for gear reducer
Internal tooth casing, 401 be the 3rd groove, and 402 be internal thread, and 5 is raised for first for connection switch block, 501, and 502 is raised for second, and 6 are
Gear reducer output internal tooth casing catcher, 601 be the first groove, and 602 be third protrusion, and 7 be sizing mill gear reducer, and 8 be roll stand.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
The purpose of this utility model is to provide a kind of roll stand attachment device, to solve above-mentioned existing in the prior art ask
Topic, enables the roll stand of different model to be used in same sizing mill, improves sizing mill service efficiency, and saving is produced into
This.
To enable the above-mentioned purpose of the utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings and have
Body embodiment is described in further detail the utility model.
Please refer to Fig.1 to Figure 12, Fig. 1 is the roll stand and sizing mill using the utility model roll stand attachment device
The overall structure diagram that gear reducer is connected, Fig. 2 are the structure diagram of the base of the utility model roll stand attachment device,
Fig. 3 is the structure diagram of the side-looking direction of the base of the utility model roll stand attachment device, and Fig. 4 rolls for the utility model
The structure diagram that the positioning of roller frame attachment device is won in succession, Fig. 5 are that the connection of the utility model roll stand attachment device turns
The structure diagram of block, Fig. 6 are the left direction structure diagram of the connection switch block of the utility model roll stand attachment device,
Fig. 7 is the right direction structure diagram of the connection switch block of the utility model roll stand attachment device, and Fig. 8 is the utility model
The structure diagram of the roll stand catcher of roll stand attachment device, Fig. 9 are the utility model roll stand attachment device
Gear reducer exports the structure diagram of internal tooth casing, and Figure 10 is that the gear reducer of the utility model roll stand attachment device exports internal tooth
The cutting structure diagram of set, Figure 11 are that the gear reducer of the utility model roll stand attachment device exports the cutting knot of internal tooth casing
Structure schematic diagram, Figure 12 are that the gear reducer of the utility model roll stand attachment device exports the structure diagram of internal tooth casing catcher.
The utility model provides a kind of roll stand attachment device, including is capable of the base 1 of stationary roll rack 8, positioning
In connecting plate 2, the roll stand being fixed on roll stand 8 catcher 3 and the gear reducer that can be connected with sizing mill gear reducer 7 export
Tooth set 4, the quantity of base 1 are two, and positioning connecting plate 2 connect the one end for fixing two bases 1 respectively, roll stand catcher 3 and
Gear reducer output internal tooth casing 4 is sequentially connected.
In use, two bases 1 are respectively placed in the upper and lower ends of roll stand 8, then it is solid respectively with two positioning connecting plates 2
The overall dimensions that the left and right ends of fixed two bases 1, base 1 and positioning connecting plate 2 are engaged the roll stand 8 for making ting model increase
Greatly, the sizing mill of big model can be suitable for, the roll stand 8 of different model is used on same sizing mill, improved
Efficiency, saves production cost.
Specifically, the cross section of base 1 is U-shaped, and base 1 includes U-type groove 101, joint face 102 and connection position 103, is used
When the upper and lower side frame of roll stand 8 is respectively placed in the U-type groove 101 of two bases 1, the quantity of joint face 102 is two, two
A joint face 102 is arranged on two lateral surfaces of U-type groove 101, sets what can be connected with roll stand 8 on joint face 102
First counterbore 104, in practical operation, the overall dimensions of increase roll stand 8 are coordinated with base 1 and positioning connecting plate 2, it is contemplated that
The stability of equipment entirety in operation, sets the first counterbore 104 on joint face 102, the first counterbore 104 can be by bolt with rolling
Roller frame 8 connects, strengthen stabilization of equipment performance, base 1 is connected with roll stand 8 and more fasten, the quantity of the first counterbore 104 with
Whether position distribution can be according to the concrete condition such as interfering to determine in 8 model of roll stand and practical operation.
The quantity of connection position 103 is four, and four connection positions 103 are respectively arranged at the both ends of joint face 102, connection position
103 set the first threaded hole 105.Positioning connecting plate 2 is rectangular configuration, and the both ends of positioning connecting plate 2 are set and 105 phase of the first threaded hole
The second counterbore 201 coordinated.When two bases 1 are arranged at 8 upper and lower ends of roll stand, positioning connecting plate 2 connects two respectively
The connection position 103 of 1 corresponding one end of base, the second counterbore 201 and the first threaded hole 105 are connected firmly with screw fastening is shared,
Convenient disassembly, both ends, the front and rear sides of each base 1 respectively set a connection position 103, and win in succession 2 quantity of positioning is four, point
The left and right ends of other connect base 1, front and rear sides respectively set two, ensure stable structure after the increase of 8 overall dimensions of roll stand,
Ensure that production is normally carried out.
More specifically, roll stand attachment device further includes connection switch block 5 and gear reducer output internal tooth casing catcher 6, roll
Rack catcher 3 is connected with being connected switch block 5, connects and the first protrusion 501 is set on switch block 5, is set on gear reducer output internal tooth casing catcher 6
It is equipped with and the first raised 501 matched first grooves 601, gear reducer output internal tooth casing catcher 6 and gear reducer output internal tooth casing 4
It is connected.
In practical operation, roll stand catcher 3 is fixed on roll stand 8, and roll stand catcher 3 is with being connected 5 phase of switch block
Even, connection switch block 5 is sequentially connected with gear reducer output internal tooth casing catcher 6, and the first protrusion 501 is engaged biography with the first groove 601
Torque is passed, gear reducer output internal tooth casing catcher 6 is connected with gear reducer output internal tooth casing 4, gear reducer output internal tooth casing 4 and sizing mill
Gear reducer 7 is connected, and finally realizes that sizing mill gear reducer 7 is connected with roll stand 8, completes plug work.
Further, second groove 301 is set on roll stand catcher 3, connects and be provided with and the second groove on switch block 5
301 matched second protrusions 502, connection switch block 5 are cylindrical-shaped structure, and the first protrusion 501 and the second protrusion 502 are set respectively
In on two bottom surfaces of connection switch block 5, the cross section of the first protrusion 501 and the second protrusion 502 is rectangle, in the first protrusion 501
Heart line and the center line of the second protrusion 502 are perpendicular.Still through groove and protrusion between roll stand 3 and connection switch block 5
The mode of similar key connection realizes drive connection, and connection is simple, reliable transmission, convenient disassembly.
Similarly, third protrusion 602 is also set up on gear reducer output internal tooth casing catcher 6, is set on gear reducer output internal tooth casing 4
It is equipped with and is respectively arranged at gear reducer with matched 3rd groove 401 of third protrusion 601,601 and first groove 601 of third protrusion
Export both ends opposite on internal tooth casing catcher 6.
Further, the 3rd counterbore 302 is also set up on roll stand catcher 3, the quantity of the 3rd counterbore 302 is four,
Four the 3rd counterbores 302 are arranged symmetrically relative to the second groove 301.Roll stand catcher 3 passes through the 3rd counterbore 302 and roller mill
Frame 8 is connected with, and is bolted fastening reliably, demolition and maintenance are convenient.
Gear reducer output internal tooth casing catcher 6 is bolted with gear reducer output internal tooth casing 4, on gear reducer output internal tooth casing 4
It is additionally provided with the internal thread 402 that can be connected with sizing mill gear reducer 7, gear reducer output internal tooth casing 4 and 7 spiral shell of sizing mill gear reducer
Line connects, and thread rotary orientation is turned to sizing mill gear reducer 7 on the contrary, prevent in the course of work gear reducer to export internal tooth casing 4 and loosen, shadow
Sizing mill is rung normally to produce.
The roll stand attachment device of the utility model, including be capable of stationary roll rack 8 base 1, positioning connecting plate 2,
The roll stand catcher 3 being fixed on roll stand 8 and the gear reducer output internal tooth casing 4 that can be connected with sizing mill gear reducer 7,
The connection switch block 5 for transmitting torque and gear reducer output internal tooth casing catcher 6 are further included, the quantity of base 1 is two, positions connecting plate 2
One end of two bases 1 is fixed in connection respectively, and roll stand catcher 3 is sequentially connected with gear reducer output internal tooth casing 4.In use,
Two bases 1 are respectively placed in the upper and lower ends of roll stand 8, then fix a left side for two bases 1 respectively with two positioning connecting plates 2
Right both ends, base 1 and positioning connecting plate 2 are engaged the overall dimensions increase for the roll stand 8 for making ting model, are sequentially connected successively
Roll stand catcher 3, connection switch block 5, gear reducer output internal tooth casing catcher 6 and gear reducer output internal tooth casing 4, finally make sizing mill
Gear reducer 7 and roll stand 8 connect, and the roll stand frame machine attachment device of the utility model enables the roll stand 8 of ting model
Enough it is suitable for the sizing mill of big model, the roll stand 8 of different model is used on same sizing mill, improves efficiency,
Save production cost.
Apply specific case in the utility model to be set forth the principle and embodiment of the utility model, the above
The explanation of embodiment is only intended to help the method and its core concept for understanding the utility model；Meanwhile for the one of this area
As technical staff, according to the thought of the utility model, in specific embodiments and applications there will be changes.To sum up
Described, this specification content should not be construed as the limitation to the utility model.
Claims (8)
- A kind of 1. roll stand attachment device, it is characterised in that：Including being capable of the base of stationary roll rack, positioning connecting plate, solid The roll stand catcher being scheduled on roll stand and the gear reducer output internal tooth casing that can be connected with sizing mill gear reducer, the bottom The quantity of seat is two, and the positioning connecting plate connects the one end for fixing two bases respectively, the roll stand catcher with The gear reducer output internal tooth casing is sequentially connected.
- 2. roll stand attachment device according to claim 1, it is characterised in that：The cross section of the base is U-shaped, institute Stating base includes U-type groove, joint face and connection position, and the quantity of the joint face is two, and two joint faces are arranged at institute State on two lateral surfaces of U-type groove, the first counterbore that can be connected with roll stand, the connection position are set on the joint face Quantity be four, four connection positions are respectively arranged at the both ends of the joint face, and the connection position sets the first screw thread Hole.
- 3. roll stand attachment device according to claim 2, it is characterised in that：The positioning connecting plate is rectangular configuration, The both ends of the positioning connecting plate set the second counterbore closed with first corresponding threaded holes.
- 4. roll stand attachment device according to claim 1, it is characterised in that：Further include connection switch block and gear reducer is defeated Go out internal tooth casing catcher, the roll stand catcher is connected with the connection switch block, and the first raised, institute is set on the connection switch block State be provided with gear reducer output internal tooth casing catcher with the described first raised matched first groove, in the gear reducer output Tooth set catcher is connected with gear reducer output internal tooth casing.
- 5. roll stand attachment device according to claim 4, it is characterised in that：The is set on roll stand catcher Two grooves, described to connect the second protrusion being provided with switch block with second fit depressions, the connection switch block is cylinder Shape structure, the described first raised and described second protrusion are respectively arranged on two bottom surfaces of the connection switch block, and described first is convex Rise and the described second raised cross section is rectangle, the described first raised center line mutually hangs down with the described second raised center line Directly.
- 6. roll stand attachment device according to claim 4, it is characterised in that：The gear reducer output internal tooth casing catcher On also set up third protrusion, be provided with the gear reducer output internal tooth casing with matched 3rd groove of the third protrusion, The third protrusion and first groove are respectively arranged at the upper opposite both ends of gear reducer output internal tooth casing catcher.
- 7. roll stand attachment device according to claim 5, it is characterised in that：Also set up on the roll stand catcher 3rd counterbore, the quantity of the 3rd counterbore is four, and four the 3rd counterbores are relative to the symmetrical cloth of the second groove Put.
- 8. roll stand attachment device according to claim 1, it is characterised in that：The gear reducer output internal tooth casing catcher It is bolted with gear reducer output internal tooth casing, is additionally provided with and can slow down with sizing mill on the gear reducer output internal tooth casing The internal thread that machine is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721003110.9U CN207271811U (en) | 2017-08-11 | 2017-08-11 | A kind of roll stand attachment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721003110.9U CN207271811U (en) | 2017-08-11 | 2017-08-11 | A kind of roll stand attachment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207271811U true CN207271811U (en) | 2018-04-27 |
Family
ID=61983213
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721003110.9U Withdrawn - After Issue CN207271811U (en) | 2017-08-11 | 2017-08-11 | A kind of roll stand attachment device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207271811U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321796A (en) * | 2017-08-11 | 2017-11-07 | 鑫鹏源智能装备集团有限公司 | A kind of roll stand attachment means and method |
| CN110947765A (en) * | 2019-12-18 | 2020-04-03 | 太原恒信科达重工成套设备有限公司 | Sizing mill tooth-shaped catcher fixing mode and quick replacement mode |
-
2017
- 2017-08-11 CN CN201721003110.9U patent/CN207271811U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107321796A (en) * | 2017-08-11 | 2017-11-07 | 鑫鹏源智能装备集团有限公司 | A kind of roll stand attachment means and method |
| CN107321796B (en) * | 2017-08-11 | 2023-08-29 | 鑫鹏源智能装备集团有限公司 | Roller rack connecting device and method |
| CN110947765A (en) * | 2019-12-18 | 2020-04-03 | 太原恒信科达重工成套设备有限公司 | Sizing mill tooth-shaped catcher fixing mode and quick replacement mode |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207271811U (en) | A kind of roll stand attachment device | |
| CN206255559U (en) | Roller conveyor | |
| CN102764769B (en) | Roller radial adjusting mechanism of cross beam type four-roller profile rolling mill | |
| CN207681396U (en) | A kind of equipment of double end rolling pipe screw thread | |
| CN204672692U (en) | A kind of milling train | |
| CN207001795U (en) | A kind of corrugated roll mechanism of paper | |
| CN103357661B (en) | A kind of universal rolling technique of round steel | |
| CN205201481U (en) | Multi -functional gyro wheel frame | |
| CN201618720U (en) | Three-roller straightening machine | |
| CN204353201U (en) | Eliminate the size-reducing mill of side in steel pipe | |
| CN107321796A (en) | A kind of roll stand attachment means and method | |
| CN104209317B (en) | A kind of high-speed rod-rolling mill group | |
| CN109877606A (en) | A kind of intermediate supports tooling and coaxial method of adjustment for boring for shafting | |
| CN211865708U (en) | Adjustable roller brush for pipeline | |
| CN206925146U (en) | Adjustable alloy collars | |
| CN203076337U (en) | Vertical-type rolling mill | |
| CN106552825A (en) | Swing arm connecting rod self-locking adjusting means and installation method | |
| CN104815846A (en) | Adjustable pull rod of core bar support frame | |
| CN213350188U (en) | High-performance cutting wheel of finishing mill | |
| CN208182053U (en) | A kind of Novel rotary drum roller bearing | |
| CN206969788U (en) | A kind of coil of strip unreels support | |
| CN206911451U (en) | A kind of rolling axle of roller press | |
| CN206262979U (en) | Table roller | |
| CN211489053U (en) | Individual transmission device of large-diameter sizing mill | |
| CN211419029U (en) | Disconnect-type steel band roller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20180427 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20180427 Effective date of abandoning: 20230829 |
|
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |