CN114850224A - Composite short-stress rolling mill with axial-dislocation quick-deviation-rectifying structure - Google Patents
Composite short-stress rolling mill with axial-dislocation quick-deviation-rectifying structure Download PDFInfo
- Publication number
- CN114850224A CN114850224A CN202210411060.7A CN202210411060A CN114850224A CN 114850224 A CN114850224 A CN 114850224A CN 202210411060 A CN202210411060 A CN 202210411060A CN 114850224 A CN114850224 A CN 114850224A
- Authority
- CN
- China
- Prior art keywords
- deviation rectifying
- upper roller
- rolling mill
- groove
- axial dislocation
- 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.)
- Pending
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B28/00—Maintaining rolls or rolling equipment in effective condition
- B21B28/02—Maintaining rolls in effective condition, e.g. reconditioning
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
Abstract
The invention relates to the technical field of rolling mills, in particular to a composite type short stress rolling mill with an axial dislocation rapid deviation rectifying structure. The upper roll component and the lower roll component roll the material, in the process, the deviation rectifying plate is arranged between the two mounting blocks, the deviation rectifying plate is mutually attached to the upper roll, and the deviation rectifying blocks are embedded in the deviation rectifying grooves. When the upper roller generates axial dislocation force due to the tendency of axial dislocation in the working process, the deviation rectifying block can limit the upper roller through the deviation rectifying groove, the left end and the right end of the deviation rectifying plate are respectively abutted to the mounting block, so that the rotation of the upper roller is limited, the axial dislocation is prevented, the axial dislocation force is rectified, and the working stability of the short-stress rolling mill is improved.
Description
Technical Field
The invention relates to the technical field of rolling mills, in particular to a composite short-stress rolling mill with an axial dislocation rapid deviation rectifying structure.
Background
With the development of the steel industry and the improvement of the quality requirements of users on steel, the requirements of steel mills on rolling mills are higher and higher. The short stress path rolling mill has the advantages of high rigidity, high product precision, light equipment weight and simple operation. The short stress rolling mill is a rolling mill with a shortened stress loop. The stress loop is a closed loop formed by the unit internal forces of all stress members such as a stand and the like under the action of rolling force of a rolling mill, and is called a stress line for short, and the elastic deformation of the stress members is in direct proportion to the length of the stress members, so that the elastic deformation of the rolling mill can be reduced by shortening the length of the stress loop, and the rigidity of the stand is improved.
The center of the pass of the upper and lower rollers is not coincident due to axial movement of the rollers or other reasons, so that rolled pieces with correct shapes and sizes cannot be rolled, the product quality is influenced, and the defect is called as wrong rollers. In the prior art, in a utility model patent with an authorization publication number of CN212093734U, a short stress rolling mill axial staggered roller quick repairing device is disclosed, which comprises a bearing seat; a pull rod is movably sleeved in the bearing seat; a copper nut is sleeved on the pull rod; an annular bulge which is abutted against the inner wall of the bearing seat is protruded on the copper nut; a shaft sleeve is arranged above the annular bulge and in a gap between the inner wall of the bearing seat and the outer wall of the copper nut; the shaft sleeve is sleeved on the copper nut; through being provided with the axle sleeve between copper nut and bearing inner wall, prevent that the pull rod from taking place elastic deformation at rolling in-process, reducing the appearance of wrong roller.
However, in the actual use process, the reason for the axial movement of the short-stress rolling mill is complex, and the problem cannot be solved well by simply strengthening the structure of the pull rod and the bearing seat.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a composite short-stress rolling mill with an axial dislocation rapid deviation rectifying structure.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a compound short stress rolling mill with structure of rectifying fast of axial dislocation, includes the bottom plate, set up in stand on the bottom plate, set up in lower roll subassembly on the stand with set up in just be located on the stand go up the roll subassembly of roller subassembly top, go up to be provided with the structure of rectifying on the roll subassembly, go up the roll subassembly including set up in two on the stand install the piece and with go up the top roll that the installation piece rotated the connection, two the mounting groove has all been seted up to one side that the installation piece is relative, the structure of rectifying including install in the mounting groove and butt in the board of rectifying of mounting groove bottom, rectify the board with sliding connection on the top roll, the groove of rectifying has been seted up on the global of top roll, be provided with on the board of rectifying and inlay and locate rectify the inslot and with rectify groove sliding connection's the piece of rectifying.
Through adopting above-mentioned technical scheme, at the during operation, go up roller assembly and roll the material with lower roller assembly, at this in-process, the board of rectifying is installed between two installation pieces, and the board of rectifying and last roll are laminated each other, and the piece of rectifying inlays to be located in the groove of rectifying. When the upper roller generates axial dislocation force due to the tendency of axial dislocation in the working process, the deviation rectifying block can limit the upper roller through the deviation rectifying groove, the left end and the right end of the deviation rectifying plate are respectively abutted to the mounting block, so that the rotation of the upper roller is limited, the axial dislocation is prevented, the axial dislocation force is rectified, and the working stability of the short-stress rolling mill is improved.
Preferably, the deviation rectifying plate comprises at least two deviation rectifying units which are matched with each other, each deviation rectifying unit corresponds to at least one deviation rectifying block and the corresponding deviation rectifying groove, and a first elastic assembly is arranged between every two adjacent deviation rectifying units.
By adopting the technical scheme, the first elastic assembly is arranged between the deviation rectifying units, each deviation rectifying unit corresponds to at least one deviation rectifying block and the corresponding deviation rectifying groove, when the upper roller generates micro axial deformation in the working process, the first elastic assembly is compressed, and the micro deformation of the upper roller is reset by utilizing the rebound force of the first elastic assembly, so that the axial dislocation of the upper roller is reduced, and the service life and the stability of the upper roller are prolonged.
Preferably, a second elastic component is arranged between the deviation rectifying plate and the bottom of the mounting groove.
By adopting the technical scheme, when the upper roller is axially dislocated integrally, the second elastic assembly is compressed to form certain buffering, and meanwhile, the rebound force of the second elastic assembly is utilized to reduce the micro-dislocation of the upper roller on the one hand and reset the micro-dislocation of the upper roller on the other hand, so that the working life of the short-stress rolling mill with a deviation correcting structure is prolonged, and the working stability of the short-stress rolling mill is further improved.
Preferably, the first elastic assembly comprises piston cylinders respectively arranged on the adjacent deviation rectifying units, a piston head is embedded in each piston cylinder, a closed space is formed between the piston head and the piston cylinder, a connecting rod is arranged between the two piston heads, and a deformation medium is filled between the bottom of each piston cylinder and the piston head.
Through adopting above-mentioned technical scheme, when the upper roll takes place the extension deformation, the piston head to by the piston cylinder in to keeping away from the direction removal of piston cylinder bottom to form negative pressure state between piston head and piston cylinder, thereby form the reaction force to the upper roll extension deformation, and along with the increase of deformation volume, the reaction force also increases thereupon, prevents the upper roll and continues the extension, simultaneously, under the effect of reaction, promotes the upper roll deformation and resets.
When the upper roller is shortened and deformed, the piston head moves towards the bottom of the piston cylinder, so that the piston head and the piston cylinder compress a deformation medium, a reaction force for shortening and deforming the upper roller is formed, the reaction force is increased along with the increase of the deformation amount, the upper roller is prevented from being continuously shortened, and meanwhile, the deformation resetting of the upper roller is promoted under the action of the reaction force.
Preferably, the piston cylinder comprises a movable part and a compression part far away from the piston head, and the cross-sectional area of the compression part in the direction perpendicular to the movement direction of the piston head is smaller than that of the movable part.
By adopting the technical scheme, when the piston head moves in the movable part, the volume of the deformation medium changes, and the cross sectional area of the compression part is smaller than that of the movable part, so that the pressure change between the piston head and the piston cylinder is more obvious, a larger reaction force is generated, and the stability of the upper roller is further improved.
Preferably, the cross-sectional area of the compression portion gradually decreases from a direction close to the movable portion to a direction away from the movable portion.
By adopting the technical scheme, along with the increase of the moving distance of the piston head, the pressure variation between the piston head and the piston cylinder is far larger than the variation of the moving distance of the piston head, so that larger reaction force is generated on the formation of the upper roller, and the stability of the upper roller is further improved.
Preferably, the adjacent correction units are provided with accommodating grooves for accommodating the piston cylinders at the sides close to each other.
Through adopting above-mentioned technical scheme, through the setting of storage tank, for the piston cylinder provides installation space, promoted the stability of structure of rectifying.
Preferably, the radial section of the deviation rectifying groove along the upper roller is arc-shaped, and the deviation rectifying block is arc-shaped and attached to the deviation rectifying groove.
By adopting the technical scheme, the deviation rectifying groove and the deviation rectifying block are designed in an arc shape, so that the contact area of the deviation rectifying groove and the deviation rectifying block is increased, on one hand, the stress strength of the deviation rectifying groove and the deviation rectifying block is improved, on the other hand, the abrasion between the deviation rectifying groove and the deviation rectifying block is reduced, and the reliability of a deviation rectifying structure is improved.
Preferably, a lubricating groove is formed in the surface of the deviation rectifying block along the movement direction of the upper roller, and lubricating oil is filled in the lubricating groove.
By adopting the technical scheme, the friction force of the deviation rectifying block and the deviation rectifying groove during relative movement is reduced by arranging the lubricating groove and filling the lubricating oil, and the service life of the deviation rectifying structure is prolonged.
In summary, the invention includes at least one of the following beneficial technical effects:
1. the deviation rectifying block can limit the upper roller through the deviation rectifying groove, so that the running stability of the upper roller is improved;
2. when the upper roller generates a trace amount of axial deformation in the working process, the first elastic assembly is compressed, and the trace amount of deformation of the upper roller is reset by utilizing the rebound force of the first elastic assembly, so that the axial dislocation of the upper roller is reduced, and the working life and the stability of the upper roller are prolonged;
3. when the whole upper roller is axially dislocated, the second elastic assembly is compressed to form certain buffering, and meanwhile, the rebound force of the second elastic assembly is utilized to reduce the micro-dislocation of the upper roller on one hand and reset the micro-dislocation of the upper roller on the other hand, so that the working life of the short-stress rolling mill with the deviation correcting structure is prolonged, and the working stability of the short-stress rolling mill is further improved.
Drawings
FIG. 1 is a schematic forward view of a short stress rolling mill.
FIG. 2 is a top view of the mounting block and the correction plate mounting.
FIG. 3 is a schematic view of the installation of the upper roll and the deviation correcting plate.
FIG. 4 is a schematic diagram of the deviation rectifying structure and the upper roller.
Fig. 5 is an enlarged view at a in fig. 4.
In the figure, 1, a bottom plate; 2. a column; 3. a lower roll assembly; 4. an upper roll assembly; 41. mounting blocks; 42. an upper roller; 43. mounting grooves; 5. a deviation rectifying structure; 51. a deviation rectifying plate; 52. a guide groove; 53. a deviation rectifying unit; 531. a containing groove; 54. a deviation rectifying block; 541. a lubrication groove; 55. a deviation rectifying groove; 56. a first elastic member; 561. a piston cylinder; 5611. a movable portion; 5612. a compression section; 562. a piston head; 563. a connecting rod; 564. a deformation medium; 57. a second elastic component.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1, the composite short stress rolling mill with the axial dislocation rapid deviation rectifying structure disclosed by the invention comprises a bottom plate 1, a stand column 2, a lower roll component 3 and an upper roll component 4. The quantity of stand 2 is four, and is rectangle distribution fixed mounting on bottom plate 1, and lower roll subassembly 3, last roll subassembly 4 are all installed on stand 2, go up roll subassembly 4 and install directly over lower roll subassembly 3.
Referring to fig. 1 to 3, the upper roller assembly 4 includes two mounting blocks 41 disposed at an upper portion of the column 2 and an upper roller 42 disposed between the two mounting blocks 41, and the upper roller 42 is rotatably coupled to the two mounting blocks 41, respectively. The opposite side of two installation pieces 41 has all been seted up mounting groove 43, is provided with the structure of rectifying 5 in the mounting groove 43. The deviation rectifying structure 5 comprises a deviation rectifying plate 51 installed in the installation groove 43, two ends of the deviation rectifying plate 51 are respectively abutted against the bottom of the installation groove 43, and two sides of the deviation rectifying plate 51 are respectively abutted against the side wall of the installation groove 43. The bottom of the deviation correcting plate 51 is provided with a guide groove 52 which is in clearance fit with the circumferential surface of the upper roller 42.
The deviation rectifying plate 51 comprises at least two deviation rectifying units 53, which are matched with each other, and in the embodiment, the number of the deviation rectifying units 53 is three. The guide groove 52 is internally provided with a deviation rectifying block 54 along the rotation direction of the upper roller 42, the circumferential surface of the upper roller 42 is provided with a deviation rectifying groove 55, and the deviation rectifying block 54 is embedded in the deviation rectifying groove 55. Each deviation rectifying unit 53 corresponds to at least one deviation rectifying block 54 and one deviation rectifying groove 55, and in the embodiment, each deviation rectifying unit 53 corresponds to one deviation rectifying block 54 and one deviation rectifying groove 55.
Referring to fig. 3 to 5, a first elastic assembly 56 is disposed between adjacent deviation rectifying units 53, and the first elastic assembly 56 includes a piston cylinder 561 and a piston head 562 embedded in the piston cylinder 561. The piston head 562 is connected with the piston cylinder 561 in a sliding and closed mode, and a closed space is formed between the piston head 562 and the piston cylinder 561. The two piston heads 562 are connected by a connecting rod 563. A deformation medium 564 is filled between the bottom of the piston cylinder 561 and the piston head 562, and in this embodiment, the deformation medium 564 is hydraulic oil. Adjacent deviation rectifying units 53 are provided with a containing groove 531 at a side close to each other, and the piston cylinder 561 is installed in the containing groove 531 and is in threaded connection with the containing groove 531.
When the upper roller 42 generates a small amount of axial deformation in the working process, the first elastic assembly 56 is compressed, and the small amount of deformation of the upper roller 42 is reset by using the rebound force of the first elastic assembly, so that the axial dislocation of the upper roller 42 is reduced, and the service life and the stability of the upper roller 42 are prolonged. Due to the plurality of deviation rectifying units 53, the deviation rectifying blocks 54 and the deviation rectifying grooves 55, the axial deformation of each part of the upper roller 42 can be reduced, and the stability of the whole upper roller 42 is improved.
When the upper roller 42 is deformed in an extending manner, the piston head 562 moves towards the direction from the inside of the piston cylinder 561 to the bottom of the piston cylinder 561, so that a negative pressure state is formed between the piston head 562 and the piston cylinder 561, a reaction force for the extending deformation of the upper roller 42 is formed, the reaction force is increased along with the increase of the deformation amount, the upper roller 42 is prevented from extending continuously, and meanwhile, the deformation resetting of the upper roller 42 is promoted under the action of the reaction force.
When the upper roller 42 is deformed by shortening, the piston head 562 moves towards the bottom of the piston cylinder 561, so that the piston head 562 and the piston cylinder 561 compress the deformation medium 564, thereby forming a reaction force for the deformation of shortening the upper roller 42, and the reaction force is increased along with the increase of the deformation amount, so that the upper roller 42 is prevented from continuously shortening, and meanwhile, the deformation resetting of the upper roller 42 is promoted under the action of the reaction force.
The deviation rectifying groove 55 is arc-shaped along the radial section of the upper roller 42, and the deviation rectifying block 54 is arc-shaped and is in consistent fit with the deviation rectifying groove 55 in shape. The deviation rectifying groove 55 and the deviation rectifying block 54 are designed in an arc shape, so that the contact area between the deviation rectifying groove 55 and the deviation rectifying block 54 is increased, on one hand, the stress strength of the deviation rectifying groove 55 and the deviation rectifying block 54 is improved, on the other hand, the abrasion between the deviation rectifying groove 55 and the deviation rectifying block 54 is reduced, and the reliability of the deviation rectifying structure 5 is improved.
The surface of the deviation rectifying block 54 is provided with a plurality of lubricating grooves 541 along the moving direction of the upper roller 42, and the lubricating grooves 541 are filled with lubricating oil. Through the opening of the lubricating groove 541 and the filling of the lubricating oil, the friction force generated when the deviation rectifying block 54 and the deviation rectifying groove 55 move relatively is reduced, and the service life of the deviation rectifying structure 5 is prolonged.
The piston cylinder 561 includes a movable portion 5611 and a compression portion 5612, the compression portion 5612 being located at an end of the piston cylinder 561 remote from the piston head 562. In a direction perpendicular to the movement of the piston head 562, the cross-sectional area of the compression portion 5612 is smaller than that of the movable portion 5611, and the cross-sectional area of the compression portion 5612 is gradually reduced from near the movable portion 5611 to far from the movable portion 5611.
When the piston head 562 moves in the movable section 5611, the volume of the deformation medium 564 changes, and since the cross-sectional area of the compression section 5612 is smaller than that of the movable section 5611, the pressure changes in the piston head 562 and the piston cylinder 561 are more obvious, so that a larger reaction force is generated, and the stability of the upper roller 42 is further improved. With the increase of the moving distance of the piston head 562, the pressure variation between the piston head 562 and the piston cylinder 561 is far larger than the variation of the moving distance of the piston head 562, so that a larger reaction force is generated for the formation of the upper roller 42, and the stability of the upper roller 42 is further improved.
A second elastic component 57 is installed between the deviation rectifying plate 51 and the bottom of the installation groove 43, and the second elastic component 57 and the first elastic component 56 have the same structure, which is not described herein.
When the upper roller 42 is axially dislocated integrally, the second elastic component 57 is compressed to form a certain buffer, and meanwhile, the rebound force of the second elastic component is utilized to reduce the micro-dislocation of the upper roller 42 on one hand and reset the micro-dislocation of the upper roller 42 on the other hand, so that the working life of the short-stress rolling mill with the deviation correcting structure 5 is prolonged, and the working stability of the short-stress rolling mill is further improved.
The working principle is as follows:
when the material rolling machine works, the upper roller assembly and the lower roller assembly roll materials, in the process, the deviation rectifying plate is arranged between the two mounting blocks, the deviation rectifying plate and the upper roller are mutually attached, and the deviation rectifying blocks are embedded in the deviation rectifying grooves. When the upper roller generates axial dislocation force due to the tendency of axial dislocation in the working process, the deviation rectifying block can limit the upper roller through the deviation rectifying groove, the left end and the right end of the deviation rectifying plate are respectively abutted to the mounting block, so that the rotation of the upper roller is limited, the axial dislocation is prevented, the axial dislocation force is rectified, and the working stability of the short-stress rolling mill is improved.
The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.
Claims (9)
1. The utility model provides a compound short stress rolling mill with quick structure of rectifying of axial dislocation which characterized in that: comprises a bottom plate (1), a stand column (2) arranged on the bottom plate (1), a lower roller assembly (3) arranged on the stand column (2) and an upper roller assembly (4) arranged on the stand column (2) and positioned above the lower roller assembly (3), wherein the upper roller assembly (4) is provided with a deviation rectifying structure (5), the upper roller assembly (4) comprises two upper mounting blocks (41) arranged on the stand column (2) and an upper roller (42) rotatably connected with the upper mounting blocks (41), one side opposite to the mounting blocks (41) is provided with mounting grooves (43), the deviation rectifying structure (5) comprises deviation rectifying plates (51) arranged in the mounting grooves (43) and abutted against the bottoms of the mounting grooves (43), the deviation rectifying plates (51) are slidably connected with the upper roller (42), and deviation rectifying grooves (55) are formed on the circumferential surface of the upper roller (42), the deviation rectifying plate (51) is provided with a deviation rectifying block (54) which is embedded in the deviation rectifying groove (55) and is in sliding connection with the deviation rectifying groove (55).
2. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in claim 1, wherein: the deviation rectifying plate (51) comprises at least two deviation rectifying units (53) which are matched with each other, each deviation rectifying unit (53) corresponds to at least one deviation rectifying block (54) and a deviation rectifying groove (55) corresponding to the deviation rectifying block, and a first elastic assembly (56) is arranged between every two adjacent deviation rectifying units (53).
3. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in claim 2, wherein: and a second elastic component (57) is arranged between the deviation rectifying plate (51) and the bottom of the mounting groove (43).
4. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in claim 2, wherein: the first elastic assembly (56) comprises piston cylinders (561) which are arranged on the adjacent deviation rectifying units (53) respectively, piston heads (562) are embedded in each piston cylinder (561), the piston heads (562) and the piston cylinders (561) form a closed space, a connecting rod (563) is arranged between the two piston heads (562), and deformation media (564) are filled between the bottoms of the piston cylinders (561) and the piston heads (562).
5. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in claim 4, wherein: the piston cylinder (561) comprises a movable part (5611) and a compression part (5612) far away from the piston head (562), and the cross-sectional area of the compression part (5612) is smaller than that of the movable part (5611) in the direction perpendicular to the movement direction of the piston head (562).
6. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in claim 5, wherein: the cross-sectional area of the compressed portion (5612) gradually decreases from the direction close to the movable portion (5611) to the direction away from the movable portion (5611).
7. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in claim 4, wherein: and one side of each adjacent deviation rectifying unit (53) close to each other is provided with a containing groove (531) for containing the piston cylinder (561).
8. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in claim 1, wherein: the radial section of the deviation rectifying groove (55) along the upper roller (42) is arc-shaped, and the deviation rectifying block (54) is arc-shaped and attached to the deviation rectifying groove (55).
9. The composite short-stress rolling mill with the axial dislocation rapid deviation rectifying structure as claimed in any one of claims 1 to 8, wherein: and a lubricating groove (541) is formed in the surface of the deviation rectifying block (54) along the movement direction of the upper roller (42), and lubricating oil is filled in the lubricating groove (541).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411060.7A CN114850224A (en) | 2022-04-19 | 2022-04-19 | Composite short-stress rolling mill with axial-dislocation quick-deviation-rectifying structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210411060.7A CN114850224A (en) | 2022-04-19 | 2022-04-19 | Composite short-stress rolling mill with axial-dislocation quick-deviation-rectifying structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114850224A true CN114850224A (en) | 2022-08-05 |
Family
ID=82632218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210411060.7A Pending CN114850224A (en) | 2022-04-19 | 2022-04-19 | Composite short-stress rolling mill with axial-dislocation quick-deviation-rectifying structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114850224A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117619883A (en) * | 2023-12-01 | 2024-03-01 | 北京理工大学 | Three-dimensional brick composite material and technological preparation method thereof |
-
2022
- 2022-04-19 CN CN202210411060.7A patent/CN114850224A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117619883A (en) * | 2023-12-01 | 2024-03-01 | 北京理工大学 | Three-dimensional brick composite material and technological preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP1441145B1 (en) | Low contact force spring | |
| CN114850224A (en) | Composite short-stress rolling mill with axial-dislocation quick-deviation-rectifying structure | |
| US20020152790A1 (en) | Low contact force spring | |
| WO2022037486A1 (en) | Roll system of six-layer parallel-roll straightener | |
| CN209935564U (en) | Cold rolling coiler mandrel | |
| CN211052212U (en) | Torsion shaft straightening tool | |
| US20110253825A1 (en) | Roller grinding mill | |
| CN110549430B (en) | Sectional type material pressing mechanism of plate processing equipment | |
| CN219770038U (en) | Side cover and mounting and dismounting tool thereof | |
| CN110586697B (en) | Torsion shaft straightening tool | |
| CN108746272A (en) | A kind of building mortion rolling curved-surface piece using composite (back-up) roll | |
| CN116443128A (en) | Thrust wheel, side cover, wheel body, sealing, fine adjusting and oiling device thereof, and mounting and dismounting tool and method | |
| CN113027854B (en) | Roller leveler | |
| CN207026116U (en) | A kind of rolling mill hydraulic pressure liner plate component | |
| CN106180211A (en) | Working roll shifting device of plate and strip rolling mill | |
| CN113714301A (en) | Balancing device for eliminating deviation of HGC cylinder of rolling mill | |
| CN216297511U (en) | Quadrangular pyramid type winding drum fixing cone shaft head device | |
| CN100402166C (en) | Leveling machine | |
| CN107282640A (en) | A kind of rolling mill hydraulic pressure liner plate component and its application method | |
| CN211053910U (en) | Sectional type swager of panel processing equipment constructs | |
| CN201127955Y (en) | Complete hydraulic pressing type six-roller cold calender | |
| RU216211U1 (en) | Rolling Mill Spindle Hinge | |
| CN215095798U (en) | Guide structure of extrusion plate of large-tonnage press | |
| CN217966364U (en) | Mechanical pressure maintaining device of steel ball grinding machine | |
| CN215333738U (en) | Connecting structure of piston rod and pressure-bearing cushion block of HGC hydraulic cylinder of rolling mill |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |