CN112453058A - Vertical roller supporting device - Google Patents
Vertical roller supporting device Download PDFInfo
- Publication number
- CN112453058A CN112453058A CN202011225658.4A CN202011225658A CN112453058A CN 112453058 A CN112453058 A CN 112453058A CN 202011225658 A CN202011225658 A CN 202011225658A CN 112453058 A CN112453058 A CN 112453058A
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- roller
- base body
- oil cylinder
- push rod
- piece
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
- B21B31/02—Rolling stand frames or housings; Roll mountings ; Roll chocks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolls And Other Rotary Bodies (AREA)
Abstract
The invention relates to the technical field of roller processing, and provides a roller vertical supporting device which comprises a seat body, wherein a mounting hole is formed in the seat body, and one end of a roller extends into the mounting hole; the annular supporting piece is arranged on the seat body, is sleeved on the step and rotates relative to the roller; the locking piece is arranged on the seat body, and the locking piece is arranged around the annular support piece and used for locking the annular support piece; and the rotation driving mechanism is arranged on the base body and positioned below the locking piece, and the rotation driving mechanism drives the roller to rotate. Through above-mentioned technical scheme, the vertical problem of placing of roll among the prior art has been solved.
Description
Technical Field
The invention relates to the technical field of roller processing, in particular to a vertical roller supporting device.
Background
Rolls are the primary working components and tools on a rolling mill that produce continuous plastic deformation of metal. The roller mainly comprises a roller body, a roller neck and a shaft head 3. The roll body is the middle part of the roll that actually participates in rolling metal. It has a smooth cylindrical or grooved surface. The roll neck is mounted in bearings and transmits the rolling force to the stand through a bearing block and a screw down device. The driving end shaft head is connected with the gear seat through a connecting shaft, and the rotating torque of the motor is transmitted to the roller. The rolls may be arranged in two, three, four or more rolls in the mill stand. However, the roller is horizontally arranged at present, the bearing is greatly abraded due to the horizontal arrangement of the roller with heavy weight, and a large driving force is also needed for driving the roller to rotate.
Disclosure of Invention
The invention provides a vertical roller supporting device, which solves the problem of vertical arrangement of rollers in the related technology.
The technical scheme of the invention is as follows:
the roller vertical supporting device is used for vertically supporting a roller, one end or two ends of the roller are provided with steps, and comprises,
the base body is provided with a mounting hole, and one end of the roller extends into the mounting hole;
the annular supporting piece is arranged on the seat body, is sleeved on the step and rotates relative to the roller;
the locking piece is arranged on the seat body, and the locking piece is arranged around the annular support piece and used for locking the annular support piece;
and the rotation driving mechanism is arranged on the base body and positioned below the locking piece, and the rotation driving mechanism drives the roller to rotate.
As a further technical solution, the locking member includes,
the turntable is provided with a through hole;
the number of the pressing wheels is multiple, the pressing wheels are rotationally arranged on the turntable, and the pressing wheels rotate along with the turntable;
one end of each hydraulic cylinder is arranged on the seat body, and the other end of each hydraulic cylinder is hinged to the rotary table;
the clamping jaws are in one-to-one correspondence with the pressing wheels, hinged to the base body, located in the through holes and arranged along the circumferential direction of the through holes, the outer sides of the clamping jaws are inclined planes or arc surfaces, and the pressing wheels press the arc surfaces after rotating along with the rotary table to lock the annular supporting piece.
As a further technical solution, the rotation driving mechanism includes,
the roller is provided with a clamping groove, the clamping groove is arranged in the clamping head, and the rotating driving disc is provided with a pushing part;
the bidirectional oil cylinder is arranged around the rotary driving disc;
the two-way oil cylinder piston rod is arranged on the two-way oil cylinder, and two ends of the two-way oil cylinder piston rod are arranged on the base body;
the connecting plate is arranged on the bidirectional oil cylinder and is positioned on one side of the rotary driving disc;
the push rod is arranged on the connecting plate and used for pushing the push part.
As a further technical solution, it is proposed that,
the pushing part is provided with a plurality of pushing columns, and the pushing columns are circumferentially arranged on the rotating driving disc;
one end of the push rod is provided with a groove, and the groove is used for clamping the push column.
As a further technical solution, it is proposed that,
the axial direction of the mounting hole is along the vertical direction.
As a further technical solution, it also includes,
the weight reducing holes are formed in the rotating driving disc and the seat body.
The working principle and the beneficial effects of the invention are as follows:
in the embodiment, in order to realize the vertical placement of the roller, a base body, an annular supporting piece, a locking piece and a rotation driving mechanism are arranged, specifically, a mounting hole is formed in the base body, one end of the roller extends into the mounting hole, the roller is vertically placed, but the roller is unstable and cannot rotate, the locking piece is arranged for this purpose, the annular supporting piece is arranged on the roller and rotates relative to the roller, the locking piece is arranged on the base body, the locking piece is arranged around the annular supporting piece and is used for locking the annular supporting piece, the annular supporting piece is locked through the locking piece, the position of the roller is also stabilized in the annular supporting piece, the roller cannot shake, meanwhile, the annular supporting piece and the roller can rotate relative to each other, and the use of; to realize the rotation of roll, set up rotation drive mechanism, rotation drive mechanism sets up on the pedestal, is located first retaining member below, and rotation mechanism drives the roll and rotates. In this scheme, because only need the one end of fixed roll, so annular support piece's the centre of a circle is exactly the center of roll, fine solution the unable eccentric problem of avoiding when roll both ends are fixed, simultaneously, select vertical setting roll, the gravity of having avoided roll itself is to the wearing and tearing of bearing, still solved need very big drive power can drive roll pivoted problem, when vertical placing, only need provide a less frictional force can to this scheme simple structure, easily realization.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of a certain structure according to the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a cross-sectional view of FIG. 2 of the present invention;
FIG. 4 is a side view of the present invention;
FIG. 5 is a schematic view of the structure of the rotational driving mechanism of the present invention;
FIG. 6 is a schematic view of the rotated connecting plate of the present invention;
FIG. 7 is a schematic view of the push rod of the present invention before rotation;
FIG. 8 is a schematic view of the push rod of the present invention after rotating
In the figure: 1. the device comprises a roller, 2, steps, 3, a seat body, 4, a mounting hole, 5, an annular support piece, 6, a locking piece, 7, a rotation driving mechanism, 8, a turntable, 9, a through hole, 10, a pressing wheel, 11, a hydraulic cylinder, 12, a clamping jaw, 13, a rotation driving disc, 14, a clamping head, 15, a clamping groove, 16, a pushing part, 17, a bidirectional oil cylinder, 18, a bidirectional oil cylinder piston rod, 19, a connecting plate, 20, a push rod, 21, a groove, 22, a lightening hole, 23, a rotating shaft, 24, a threaded hole, 25, a stopper, 26, a torsion spring, 27 and a pushing column.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any inventive step, are intended to be within the scope of the present invention.
Example 1
As shown in fig. 1 to 5, the present embodiment proposes
The roller vertical supporting device is characterized in that the device is used for vertically supporting a roller 1, one end or two ends of the roller are provided with steps 2, comprising,
the roller mill comprises a base body 3, wherein a mounting hole 4 is formed in the base body 3, and one end of the roller 1 extends into the mounting hole 4;
the annular supporting piece 5 is arranged on the base body 3, is sleeved on the step 2 and rotates relative to the roller 1;
the locking part 6 is arranged on the base body 3, and the locking part 6 is arranged around the annular support part 5 and used for locking the annular support part 5;
and the rotation driving mechanism 7 is arranged on the base body 3 and positioned below the locking piece 6, and the rotation driving mechanism 7 drives the roller 1 to rotate.
In the embodiment, in order to realize the vertical placement of the roller 1, a base body 3, an annular support member 5, a locking member 6 and a rotation driving mechanism 7 are provided, specifically, a mounting hole 4 is provided on the base body 3, one end of the roller 1 extends into the mounting hole 4, the roller 1 is vertically placed, but is unstable and cannot rotate, so that the locking member 6 is provided, the annular support member 5 is provided on the roller 1 and rotates relative to the roller 1, the locking member 6 is provided on the base body 3, the locking member 6 is provided around the annular support member 5 and is used for locking the annular support member 5, the annular support member 5 is locked by the locking member 6, the position of the roller 1 is also stabilized in the annular support member 5, no shaking occurs, and meanwhile, the annular support member 5 and the roller 1 can rotate relative to each other and the use of the roller 1 is not hindered; to realize the rotation of roll 1, has set up rotation drive mechanism 7, and rotation drive mechanism 7 sets up on pedestal 3, is located first retaining member 6 below, and slewing mechanism drives roll 1 and rotates. In this scheme, because only need the one end of fixed roll 1, so the centre of a circle of ring support piece 5 is exactly the center of roll 1, fine solution 1 both ends of roll fixed time unable eccentric problem of avoiding, simultaneously, select vertical setting roll 1, the gravity of having avoided roll 1 itself is to the wearing and tearing of bearing, it can drive 1 pivoted problem of roll only to have still solved needs very big drive power, when vertical placing, only need provide a less frictional force can, and this scheme simple structure, easily realize.
Further, the locking piece 6 comprises a turntable 8, and a through hole 9 is formed in the turntable 8;
the number of the pressing wheels 10 is multiple, the pressing wheels 10 are rotationally arranged on the turntable 8, and the pressing wheels 10 rotate along with the turntable 8;
a plurality of hydraulic cylinders 11 are provided, one end of each hydraulic cylinder 11 is arranged on the base body 3, and the other end of each hydraulic cylinder 11 is hinged to the rotary table 8;
the clamping jaws 12 are in one-to-one correspondence with the pressing wheels, the clamping jaws 12 are hinged to the base body 3 and located in the through holes 9 and arranged along the circumferential direction of the through holes 9, the outer sides of the clamping jaws 12 are inclined planes or arc surfaces, and the pressing wheels 10 are pressed on the arc surfaces after rotating along with the rotary table 8 to lock the annular supporting piece 5.
In the embodiment, in order to realize the locking of the annular supporting piece 5, a hydraulic cylinder 11 and a clamping jaw 12 of a pressing wheel 10 of a turntable 8 are arranged, specifically, a through hole 9 is formed in the turntable 8, the turntable 8 is arranged on the base body 3, and the through hole 9 is coaxial with the mounting hole 4, so that the roller 1 cannot be skewed; the number of the pressing wheels 10 is multiple, the pressing wheels 10 are rotationally arranged on the turntable 8, and the pressing wheels 10 rotate along with the turntable 8 and can also rotate when rotating along with the turntable 8; pneumatic cylinder 11 is two, and pneumatic cylinder 11 one end sets up on pedestal 3, and the other end articulates on carousel 8, and two pneumatic cylinders 11 are flexible jointly, drive carousel 8 and rotate around the centre of a circle of mounting hole 4, and carousel 8 rotates, and pinch roller 10 on it also rotates along with carousel 8 to slide on the cambered surface of jack catch 12, drive jack catch 12 locking annular support piece 5.
Further, the rotation driving mechanism 7 comprises a rotation driving disc 13, a clamping head 14 is arranged on the rotation driving disc 13, a clamping groove 15 is arranged on the roller 1, the clamping groove 15 is arranged in the clamping head 14, and a pushing part 16 is arranged on the rotation driving disc 13;
the bidirectional oil cylinder 17, the bidirectional oil cylinder 17 is set up around rotating the driving disc 13;
a bidirectional oil cylinder piston rod 18, wherein the bidirectional oil cylinder piston rod 18 is arranged on the bidirectional oil cylinder 17, and two ends of the bidirectional oil cylinder piston rod 18 are arranged on the base body 3;
the connecting plate 19 is arranged on the bidirectional oil cylinder 17 and is positioned on one side of the rotary driving disc 13;
a push rod 20, the push rod 20 is arranged on the connecting plate 19, and the push rod 20 is used for pushing the push part 16.
In this embodiment, in order to drive the roller 1, a rotation driving disc 13, a bidirectional oil cylinder 17 piston rod, a connecting plate 19 and a push rod 20 are provided, specifically, a chuck 14 is provided on the rotation driving disc 13, a clamping groove 15 is provided on the roller 1, the clamping groove 15 is provided in the chuck 14, the rotation driving disc 13 rotates, and the chuck 14 thereon also rotates to drive the clamping groove 15 and the roller 1 thereof to rotate; four bidirectional oil cylinders 17 are arranged around the rotary driving disc 13; a piston rod of the bidirectional oil cylinder 17 is arranged on the bidirectional oil cylinder 17, and two ends of the piston rod of the bidirectional oil cylinder 17 are arranged on the base body 3; the connecting plate 19 is arranged on the bidirectional oil cylinder 17, and the bidirectional oil cylinder 17 reciprocates on a piston rod of the bidirectional oil cylinder 17 to drive the connecting plate 19 to reciprocate along the length direction of the piston rod of the bidirectional oil cylinder 17; the connecting plate 19 is provided with a push rod 20, the push rod 20 moves along with the movement of the connecting plate 19, meanwhile, the rotating driving disk 13 is provided with a push part 16, and in the moving process of the push rod 20, the push part 16 is pushed to enable the rotating driving disk 13 to rotate.
Further, the pushing portion 16 has a plurality of pushing posts 27, the pushing posts 27 being circumferentially provided on the rotating drive disk 13;
one end of the push rod 20 is provided with a groove 21, and the groove 21 is used for clamping the push column 27.
In this embodiment, the pushing portion 16 has a plurality of pushing posts 27, and the pushing posts 27 are circumferentially disposed on the rotating driving disk 13, so that the rotating driving disk 13 can rotate; one end of the push rod 20 is provided with a groove 21, and the design of the groove 21 is convenient for clamping the push column 27.
Further, the axial direction of the mounting hole 4 is in the vertical direction.
In this embodiment, the mounting hole 4 is in the vertical direction, and the roll 1 is disposed in the mounting hole 4 in the vertical direction.
Furthermore, the seat body 3 is provided with lightening holes 22, and the rotary driving disk 13 and the seat body 3 are provided with lightening holes 22.
In this embodiment, in order to reduce the weight of the device, weight-reducing holes 22 are provided on both the rotation driving disk 13 and the seat body 3.
Example 2
As shown in fig. 6 to 8, this embodiment includes all the structures of embodiment 1, and is modified such that,
the vertical supporting device of the roller also comprises a vertical supporting device,
the rotating shaft 23, the rotating shaft 23 is arranged on the two-way oil cylinder 17, and the connecting plate 19 is rotatably arranged on the rotating shaft 23;
and a threaded hole 24 is formed in the connecting plate 19.
In the embodiment, in order to realize the rotation of the roller 1 in the other direction, it is particularly designed that the bidirectional oil cylinder 17 is provided with a rotating shaft 23, the connecting plate 19 is hinged on the rotating shaft 23, when the roller 1 needs to rotate in the other direction, the connecting plate 19 rotates, the position of the push rod 20 is changed to the other side which is symmetrical to the original position about the rotating shaft 23, the bidirectional oil cylinder 17 advances to drive the connecting plate 19 to advance, the push rod 20 can reversely push the push part 16, and the rotary driving disk 13 can reversely rotate.
In this embodiment, the connection plate 19 is provided with a threaded hole 24, and a screw is screwed into the threaded hole 24, so that one end of the screw abuts against the two-way oil cylinder 17 to fix the connection plate 19, thereby preventing the connection plate 19 from rotating during operation.
Further, the push rod 20 is rotatably disposed on the connecting plate 19, and further includes a stopper 25, the stopper 25 is disposed on the connecting plate 19 and is located on one side of the push rod 20 close to the rotating driving disk 13;
and the torsion spring 26 is arranged on the rotating shaft of the push rod 20, one action end of the torsion spring 26 acts on the connecting plate 19, and the other action end acts on the push rod 20 and is used for driving the push rod 20 to be close to and contact with the stopper 25.
In this embodiment, the push rod 20 is rotatably disposed on the connecting plate 19, the push rod 20 is rotatable about a shaft, the stopper 25 is disposed on one side of the push rod 20,
the push rod 20 needs to perform two movement processes, one movement process is that the bidirectional oil cylinder 17 drives the push rod to move along one direction (direction a), the push rod 20 pushes the push column 27 to rotate the driving disk 13, and the other movement process is that the bidirectional oil cylinder 17 drives the push column 27 to move along the other direction (direction B, which is the opposite direction of direction a), so that the push rod 20 pushes the push column 27 again.
Specifically, in the first movement process, the bidirectional oil cylinder 17 moves along the direction a, and because one side of the push rod 20 is provided with the stopper 25, the push rod 20 pushes the push post 27 under the action of the stopper 25 to realize the rotation of the rotary driving disk 13;
in the second process, the bidirectional oil cylinder 17 moves along the direction B, because the other side of the push rod 20 is not provided with the stopper 25, the push rod 20 rotates around the hinge shaft, and the push post 27 acts on the push rod 20, the push rod 20 rotates around the hinge shaft in the direction away from the stopper 25, so that the lowest point of the push rod 20 is higher than the highest point of the push post 27, the push rod 20 slides over the push post 27 and slides over the push post 27, because of the existence of the torsion spring 26, after the push rod 20 passes through the highest point of the push post 27, the groove 21 on the push rod 20 is lower than the highest point of the push post 27, and the push rod 20 can clamp the push post 27 again.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. The vertical roller supporting device is characterized by being used for vertically supporting a roller (1), one end or two ends of the roller are provided with steps (2) and comprises,
the roller mill base is characterized by comprising a base body (3), wherein a mounting hole (4) is formed in the base body (3), and the mounting hole (4) is used for enabling one end of the roller (1) to extend into;
the annular supporting piece (5) is arranged on the base body (3) and is used for being sleeved on the step (2) and rotating relative to the roller (1);
the locking piece (6) is arranged on the base body (3), and the locking piece (6) is arranged around the annular support piece (5) and used for locking the annular support piece (5);
and the rotation driving mechanism (7) is arranged on the base body (3) and positioned below the locking piece (6), and the rotation driving mechanism (7) drives the roller (1) to rotate.
2. The vertical support device of the roll according to claim 1, characterized in that said locking (6) comprises,
the rotary table (8) is provided with a through hole (9);
the number of the pressing wheels (10) is multiple, the pressing wheels (10) are rotatably arranged on the turntable (8), and the pressing wheels (10) rotate along with the turntable (8);
a plurality of hydraulic cylinders (11), wherein one end of each hydraulic cylinder (11) is arranged on the base body (3), and the other end of each hydraulic cylinder (11) is hinged to the rotary table (8);
jack catch (12), jack catch (12) be a plurality of with pinch roller one-to-one articulates on pedestal (3), be located in through-hole (9), follow the circumference of through-hole (9) is arranged, the jack catch (12) outside is inclined plane or cambered surface, pinch roller (10) follow carousel (8) rotate the back and press in the cambered surface, lock annular support piece (5).
3. The vertical support device of the roll according to claim 2, characterized in that said rotary drive mechanism (7) comprises,
the roller mill is characterized by comprising a rotary driving disc (13), wherein a clamping head (14) is arranged on the rotary driving disc (13), a clamping groove (15) is arranged on the roller (1), the clamping groove (15) is arranged in the clamping head (14), and a pushing part (16) is arranged on the rotary driving disc (13);
the bidirectional oil cylinder (17), the said bidirectional oil cylinder (17) is set up around the said rotary driving disc (13);
the two-way oil cylinder piston rod (18), the two-way oil cylinder piston rod (18) is arranged on the two-way oil cylinder (17), and two ends of the two-way oil cylinder piston rod (18) are arranged on the base body (3);
the connecting plate (19) is arranged on the bidirectional oil cylinder (17) and is positioned on one side of the rotary driving disc (13);
the push rod (20), the push rod (20) sets up on connecting plate (19), push rod (20) are used for promoting push portion (16).
4. The roll vertical support apparatus of claim 3,
the pushing part (16) is provided with a plurality of pushing columns (27), and the pushing columns (27) are circumferentially arranged on the rotating driving disk (13);
one end of the push rod (20) is provided with a groove (21), and the groove (21) is used for clamping the push column (27).
5. The roll vertical support apparatus of claim 4,
the axial direction of the mounting hole (4) is along the vertical direction.
6. The roll vertical support apparatus of claim 5, further comprising,
the weight reducing holes (22) are formed in the rotary driving disc (13) and the base body (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225658.4A CN112453058B (en) | 2020-11-05 | 2020-11-05 | Vertical roller supporting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011225658.4A CN112453058B (en) | 2020-11-05 | 2020-11-05 | Vertical roller supporting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112453058A true CN112453058A (en) | 2021-03-09 |
| CN112453058B CN112453058B (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011225658.4A Active CN112453058B (en) | 2020-11-05 | 2020-11-05 | Vertical roller supporting device |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001300610A (en) * | 2000-04-18 | 2001-10-30 | Nippon Steel Corp | Device for maintaining vertical roll for rolling mill |
| US20040217532A1 (en) * | 2003-05-02 | 2004-11-04 | Eberle Harry W. | Portable, adjustable vertical work holder device |
| CN201002255Y (en) * | 2007-01-31 | 2008-01-09 | 天津赛瑞机器设备有限公司 | Piercing press roller storing frame |
| CN105013826A (en) * | 2015-08-26 | 2015-11-04 | 邯郸新兴特种管材有限公司 | Roller dismounting device for sizing mill and dismounting method |
| CN206484523U (en) * | 2016-12-31 | 2017-09-12 | 江阴润源机械有限公司 | A kind of rack for Heavy Back-Up Roll |
| CN209778938U (en) * | 2019-01-15 | 2019-12-13 | 江阴润源机械有限公司 | Rotary centering connection structure for vertical roller quenching machine tool |
| CN210523891U (en) * | 2019-06-24 | 2020-05-15 | 常州晔兴重工科技股份有限公司 | Processing frock of roll |
-
2020
- 2020-11-05 CN CN202011225658.4A patent/CN112453058B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001300610A (en) * | 2000-04-18 | 2001-10-30 | Nippon Steel Corp | Device for maintaining vertical roll for rolling mill |
| US20040217532A1 (en) * | 2003-05-02 | 2004-11-04 | Eberle Harry W. | Portable, adjustable vertical work holder device |
| CN201002255Y (en) * | 2007-01-31 | 2008-01-09 | 天津赛瑞机器设备有限公司 | Piercing press roller storing frame |
| CN105013826A (en) * | 2015-08-26 | 2015-11-04 | 邯郸新兴特种管材有限公司 | Roller dismounting device for sizing mill and dismounting method |
| CN206484523U (en) * | 2016-12-31 | 2017-09-12 | 江阴润源机械有限公司 | A kind of rack for Heavy Back-Up Roll |
| CN209778938U (en) * | 2019-01-15 | 2019-12-13 | 江阴润源机械有限公司 | Rotary centering connection structure for vertical roller quenching machine tool |
| CN210523891U (en) * | 2019-06-24 | 2020-05-15 | 常州晔兴重工科技股份有限公司 | Processing frock of roll |
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|---|---|
| CN112453058B (en) | 2022-08-05 |
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