CN112974549B - Intelligent guide device of large axle wedge cross rolling mill for rail transit - Google Patents
Intelligent guide device of large axle wedge cross rolling mill for rail transit Download PDFInfo
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- CN112974549B CN112974549B CN202110181794.6A CN202110181794A CN112974549B CN 112974549 B CN112974549 B CN 112974549B CN 202110181794 A CN202110181794 A CN 202110181794A CN 112974549 B CN112974549 B CN 112974549B
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- guide
- guard
- sliding seat
- hydraulic cylinders
- clamping
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/0061—Force sensors associated with industrial machines or actuators
- G01L5/0076—Force sensors associated with manufacturing machines
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- Engineering & Computer Science (AREA)
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- Bearings For Parts Moving Linearly (AREA)
Abstract
The invention belongs to the technical field of plastic forming equipment of shaft parts, and particularly relates to an intelligent guide and guard device of a large-scale axle wedge cross rolling mill for rail transit, which comprises guide and guard supports, wherein a guide and guard base is arranged below the guide and guard supports, a guide and guard cross beam is arranged between the two guide and guard supports, a plurality of guide and guard hydraulic cylinders are arranged on the guide and guard cross beam, telescopic rods of the guide and guard hydraulic cylinders are connected with guide and guard sliding seats, guide and guard sliding grooves are arranged on the inner sides of the guide and guard supports, the guide and guard sliding seats are clamped in the guide and guard sliding grooves, two adjusting hydraulic cylinders are arranged on the front sides of the guide and guard sliding seats, and guide plate seats are hinged to the upper ends of the two adjusting hydraulic cylinders. The intelligent adjustment of the guide and guard device is realized through the control system, the guide and guard hydraulic cylinder, the adjusting hydraulic cylinder, the clamping hydraulic cylinder and the detection device, and the front and back openings, the height and the manual adjustment of the inclination angle of the guide plate of the guide and guard device can be quickly and intelligently adjusted according to the product specification.
Description
Technical Field
The invention belongs to the technical field of shaft part plastic forming equipment, and particularly relates to an intelligent guide and guard device of a large axle wedge cross rolling mill for rail transit.
Background
Large axles are core parts in the fields of high-speed rail, rail transit, large engineering machinery and the like, and the demand is increasing day by day. The traditional preparation method of the large-scale shaft part is mainly prepared by forging the large-scale shaft part by using a quick forging machine and a precision forging machine, the quick forging process needs manual intervention, the production period is long, the product precision is low, the energy consumption is high, the efficiency is low, heavy cold machining is needed in the subsequent production process, the metal streamline on the surface of the product is greatly damaged while the cutting amount is large, and the mechanical property of the product is reduced; the precision forging machine is completely monopolized by foreign enterprises, although the forging speed can be doubled compared with the quick forging speed and the cutting amount is effectively reduced, the preparation of one axle still needs more than 4 minutes at least, the subsequent processing loss and the mechanical property of the product are still not improved, the input and output of equipment are lower, and the quality stability is poor.
Cross wedge rolling is an efficient and clean plastic forming technology for shaft parts, and compared with the existing production method, the method has the main advantages that: 1) the production efficiency is improved by 2-3 times; 2) the material saving rate is improved by 10-25%; 3) the product precision is high, and machining procedures are reduced; 4) no impact and low noise; 5) the production cost can be reduced by about 30 percent. Take the production of train RD2 axles as an example: the preparation time of the single-axle shaft can be reduced from 10 minutes to 1 minute, the production efficiency is improved by 3-5 times, the material is saved by 50-100 Kg, and the material saving rate is improved by 10-20%. Therefore, the wedge cross rolling technology is adopted to prepare the large axle for the rail transit, so that the axle forming efficiency and precision are improved, and the service life of the axle can be prolonged due to the retention of the hot-working metal streamline.
At present, the largest-specification cross wedge rolling mill in the world can only roll large shafts with the diameter of 150mm and the length of 1200mm, and large shaft part products with the diameter of 200-250 mm and the length of 2000-2800 mm required in the fields of high-speed rails, rail traffic, large engineering machinery and the like cannot be prepared into qualified products by the structural form and the production capacity of the existing cross wedge rolling mill, so that the adoption of the cross wedge rolling mill for preparing large axles for rail traffic belongs to the international initiatives, higher requirements are put forward on the structure of the axles, and the selection of a reasonable guide device is crucial, and is directly related to the quality of the products.
The guide and guard device is a key structural part of the cross wedge rolling mill, and in the rolling forming process, a closed rolling space is formed by the front guide and guard device and the rear guide and guard device of the rolling mill and the upper and lower rollers, so that a rolled piece is ensured to axially rotate in the rollers rotating in the same direction up and down, the guide and guard device participates in deformation and simultaneously ensures that the rolled piece does not roll out of the upper and lower circular rollers, and the smooth rolling forming of the rolled piece is facilitated. Traditional guide fittings is installed on the fixed cross beam of frame about the cross wedge rolling mill, opening and height adjustment between two sets of guide fittings in front and back all adopt manual adjustment mode to realize when the product specification is adjusted, and to the cross wedge rolling mill of the biggest specification in the world, lead to guide fittings structure huge because of its rolling force is huge, if adopt traditional guide fittings structural style, the adjustment process is obviously very difficult, be difficult to realize, quick adjustment demand when unable satisfying the product production, the precision is difficult to guarantee simultaneously.
Disclosure of Invention
The invention provides an intelligent guide and guard device for a large-scale axle wedge cross rolling mill for rail transit.
In order to achieve the purpose, the invention adopts the following technical scheme:
an intelligent guide and guard device of a large axle wedge cross rolling mill for rail transit comprises two guide and guard supports, wherein a guide and guard base used for supporting the guide and guard supports is arranged below the guide and guard supports, a guide and guard cross beam is arranged between the two guide and guard supports and is positioned at the rear side of the guide and guard supports, a plurality of guide and guard hydraulic cylinders are arranged on the guide and guard cross beam, telescopic rods of the guide and guard hydraulic cylinders are connected with a guide and guard sliding seat, a guide and guard sliding groove is arranged at the inner side of the guide and guard supports, the guide and guard sliding seat is clamped in the guide and guard sliding groove, two adjusting hydraulic cylinders are arranged at the front side of the guide and guard sliding seat and are respectively positioned at the two sides of the lower part of the guide and guard sliding seat, a guide plate seat is hinged to the upper ends of the two adjusting hydraulic cylinders together to adjust the height of the guide plate seat, a plurality of U-shaped grooves are uniformly arranged at the rear side of the guide plate seat, the guide and guard sliding seat is provided with a plurality of clamping hydraulic cylinders corresponding to the U-shaped grooves, the end parts of telescopic rods of the clamping hydraulic cylinders are provided with clamping plates corresponding to the U-shaped grooves, the clamping plates in the U-shaped grooves are tightened through the clamping hydraulic cylinders to fix the guide plate seat, the guide plate seat is provided with a clamping groove used for clamping the guide plate, the guide plate is hinged in the clamping groove through a guide and guard pin shaft, the guide plate is fixedly connected with a guide plate strip through bolts, and the guide and guard hydraulic cylinders, the adjusting hydraulic cylinders and the clamping hydraulic cylinders are all connected with displacement sensors and pressure sensors and used for transmitting displacement data and pressure data of the guide and guard hydraulic cylinders, the adjusting hydraulic cylinders and the clamping hydraulic cylinders to a control system, so that the intelligent control and safety protection of the running state and the running track of the guide and guard device are facilitated.
Furthermore, a guide groove is formed in the middle of the lower surface of the guide sliding seat, and a guide rail corresponding to the guide groove is arranged below the guide sliding seat so as to limit and guide the guide sliding seat.
And furthermore, two guide eccentric shafts are respectively arranged on the left side and the right side of the guide sliding seat, guide rollers are mounted on the guide eccentric shafts and are used for being in rolling contact with the guide sliding grooves and simultaneously propping against the guide sliding grooves to ensure the stability of the guide sliding seat, a compression end cover is mounted on the guide eccentric shafts and is fixed on the upper surface of the guide sliding seat through bolts, and the compression end cover is tightly clamped through tightening the bolts to fix the guide eccentric shafts.
Furthermore, sliding plates are arranged on the contact parts of the upper surface and the lower surface of the guide sliding seat and the guide sliding chute and the contact parts of the guide sliding chute and the guide roller, so that the abrasion to the guide sliding seat is reduced.
Furthermore, a steering adjusting plate is fixedly connected to the upper end of the guide plate and fixedly connected with the guide plate strip through bolts, two steering adjusting bolts are in threaded connection with positions, corresponding to the steering adjusting plate, on the guide sliding seat and are respectively located on two sides of the guide pin shaft, the end portions of the steering adjusting bolts are in contact with the steering adjusting plate, and therefore the purpose of adjusting the angle between the steering adjusting plate and the rolling center line is achieved by pressing the steering adjusting plate through screwing the steering adjusting bolts.
Compared with the prior art, the invention has the following advantages:
1. the intelligent adjustment of the guide and guard device is realized through the control system, the guide and guard hydraulic cylinder, the adjusting hydraulic cylinder, the clamping hydraulic cylinder and the detection device, and the front and back openings and the height of the guide and guard device and the manual adjustment of the inclination angle of the guide plate can be quickly and intelligently adjusted according to the product specification;
2. the invention can realize the quick opening of the guide and guard device in the front and back opening directions, ensure that rolled products are quickly transferred out from the roller, and meet the production rhythm requirement of the cross wedge rolling mill;
3. the invention can realize dynamic monitoring of the guide plate force in the product rolling process, ensure that the guide plate force is rapidly increased and rapidly popped when a rolled piece is subjected to rolling clamping, protect the rolling mill from being damaged, save manpower compared with the existing manual adjustment and improve the efficiency.
Drawings
FIG. 1 is a rear view of the present invention;
FIG. 2 is a front view of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a cross-sectional view A-A of FIG. 3 according to the present invention;
FIG. 5 is a cross-sectional view of section B-B of FIG. 4 in accordance with the present invention;
FIG. 6 is a schematic structural view of the guide eccentric shaft of the present invention;
FIG. 7 is a schematic illustration of the present invention in use;
in the figure, a guide support-1, a guide base-2, a guide beam-3, a guide hydraulic cylinder-4, a guide sliding seat-5, a guide sliding groove-6, a guide groove-7, a guide rail-8, a sliding plate-9, a guide eccentric shaft-10, a pressing end cover-11, a guide roller-12, an adjusting hydraulic cylinder-13, a guide plate seat-14, a U-shaped groove-15, a clamping hydraulic cylinder-16, a clamping plate-17, a clamping groove-18, a guide pin shaft-19, a guide plate strip-20, a steering adjusting plate-21, a steering adjusting bolt-22, a guide plate-23, an upper roller-24, a lower roller-25 and a rolled piece-26.
Detailed Description
In order to further illustrate the technical solution of the present invention, the present invention is further illustrated by the following examples.
As shown in fig. 1 to 7, an intelligent guide and guard device for a large axle wedge cross rolling mill for rail transit comprises two guide and guard supports 1, wherein a guide and guard base 2 for supporting the guide and guard supports 1 is arranged below the guide and guard supports 1, a guide and guard cross beam 3 is arranged between the two guide and guard supports 1, the guide and guard cross beam 3 is positioned at the rear side of the guide and guard supports 1, a plurality of guide and guard hydraulic cylinders 4 are arranged on the guide and guard cross beam 3, telescopic rods of the guide and guard hydraulic cylinders 4 are connected with a guide and guard sliding seat 5, a guide groove 7 is arranged in the middle of the lower surface of the guide and guard sliding seat 5, a guide rail 8 corresponding to the guide groove 7 is arranged below the guide and guard sliding seat 5 so as to limit and guide the guide and guard sliding seat 5, a guide and guard sliding groove 6 is arranged on the inner side of the guide and guard supports 1, the guide and guard sliding seat 5 is clamped in the guide and guard sliding groove 6, the left side and the right side of the guide sliding seat 5 are respectively provided with two guide eccentric shafts 10, guide rollers 12 are arranged on the guide eccentric shafts 10 and are used for being in rolling contact with the guide sliding groove 6 and simultaneously propping against the guide sliding groove 6 to ensure the stability of the guide sliding seat 5, a pressing end cover 11 is arranged on the guide eccentric shafts 10, the pressing end cover 11 is fixed on the upper surface of the guide sliding seat 5 through bolts, the pressing end cover 11 is tightly clamped through screwing bolts to realize the fixation of the guide eccentric shafts 10, sliding plates 9 are arranged at the contact part of the upper surface and the lower surface of the guide sliding seat 5 and the guide sliding groove 6 and the contact part of the guide rollers 12 in the guide sliding groove 6 so as to reduce the abrasion of the guide sliding seat 5, two adjusting hydraulic cylinders 13 are arranged at the front side of the guide sliding seat 5, and the two adjusting hydraulic cylinders 13 are respectively arranged at the two sides of the lower part of the guide sliding seat 5, a guide plate seat 14 is hinged to the upper ends of the two adjusting hydraulic cylinders 13 together to adjust the height of the guide plate seat 14, a plurality of U-shaped grooves 15 are uniformly arranged on the rear side of the guide plate seat 14, a plurality of clamping hydraulic cylinders 16 corresponding to the U-shaped grooves 15 are arranged on the guide sliding seat 5, clamping plates 17 corresponding to the U-shaped grooves 15 are arranged at the end parts of telescopic rods of the clamping hydraulic cylinders 16, the clamping plates 17 in the U-shaped grooves 15 are tightened through the clamping hydraulic cylinders 16 to fix the guide plate seat 14, clamping grooves 18 for clamping guide plates 23 are arranged on the guide plate seat 14, the guide plates 23 are hinged in the clamping grooves 18 through guide pin shafts 19, guide plate strips 20 are fixedly connected to the guide plates 23 through bolts, a steering adjusting plate 21 is fixedly connected to the upper ends of the guide plates 23, and the steering adjusting plate 21 is fixedly connected to the guide plate strips 20 through bolts, two steering adjusting bolts 22 are in threaded connection with positions, corresponding to the steering adjusting plates 21, on the guide sliding seat 5, the two steering adjusting bolts 22 are respectively located on two sides of the guide pin shaft 19, the end portions of the steering adjusting bolts 22 are in contact with the steering adjusting plates 21 so as to apply pressure to the steering adjusting plates 21 by screwing the steering adjusting bolts 22, and therefore the purpose of adjusting the angle between the steering adjusting plates 21 and the rolling center line is achieved, displacement sensors and pressure sensors are connected to the guide hydraulic cylinder 4, the adjusting hydraulic cylinder 13 and the clamping hydraulic cylinder 16 and used for transmitting displacement data and pressure data of the guide hydraulic cylinder 4, the adjusting hydraulic cylinder 13 and the clamping hydraulic cylinder 16 to a control system, and therefore intelligent control and safety protection of the running state and the running track of the guide device are facilitated.
The working principle is as follows: adjusting the guide eccentric shaft 10 to make the guide roller 12 support the guide chute 6, the control system automatically controls the guide hydraulic cylinder 4 to drive the guide sliding seat 5 to move according to the size of the rolled piece, adjusting the opening between the front and back guide devices to a proper position, controlling the clamping hydraulic cylinder 16 to extend, releasing the guide seat 14, controlling the adjusting hydraulic cylinder 13 to drive the guide seat 14 to move to a proper height, controlling the clamping hydraulic cylinder 16 to retract, clamping the guide seat 14, realizing the fixation of the guide seat 14, thereby completing the adjustment of the guide device, controlling the guide hydraulic cylinder 4, the adjusting hydraulic cylinder 13 and the clamping hydraulic cylinder 16 to be in a pressure maintaining state all the time in the rolling process, monitoring the stress state of the guide hydraulic cylinder and the pressure maintaining state, and when the external force exceeds the force requirement of the hydraulic cylinder, quickly bouncing the hydraulic cylinder, thereby ensuring the rolling stability and simultaneously ensuring the equipment safety.
While there have been shown and described what are at present considered to be the essential features and advantages of the invention, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (5)
1. The utility model provides a rail transit is with large-scale axletree wedge cross rolling mill intelligence guide fittings which characterized in that: the device comprises two guide and guard supports (1), a guide and guard base (2) for supporting the guide and guard supports (1) is arranged below the guide and guard supports (1), a guide and guard cross beam (3) is arranged between the two guide and guard supports (1), the guide and guard cross beam (3) is positioned at the rear side of the guide and guard supports (1), a plurality of guide and guard hydraulic cylinders (4) are arranged on the guide and guard cross beam (3), telescopic rods of the guide and guard hydraulic cylinders (4) are connected with a guide and guard sliding seat (5), a guide and guard sliding groove (6) is arranged on the inner side of the guide and guard supports (1), the guide and guard sliding seat (5) is arranged in the guide and guard sliding groove (6), two adjusting hydraulic cylinders (13) are arranged on the front side of the guide and guard clamping sliding seat (5), and the two adjusting hydraulic cylinders (13) are respectively positioned at two sides of the lower part of the guide and guard sliding seat (5), a guide plate seat (14) is hinged to the upper ends of the two adjusting hydraulic cylinders (13) together to adjust the height of the guide plate seat (14), a plurality of U-shaped grooves (15) are uniformly formed in the rear side of the guide plate seat (14), a plurality of clamping hydraulic cylinders (16) corresponding to the U-shaped grooves (15) are arranged on the guide sliding seat (5), clamping plates (17) corresponding to the U-shaped grooves (15) are arranged at the end parts of telescopic rods of the clamping hydraulic cylinders (16), the clamping plates (17) in the U-shaped grooves (15) are tightened through the clamping hydraulic cylinders (16) to fix the guide plate seat (14), a clamping groove (18) for clamping a guide plate (23) is formed in the guide plate seat (14), the guide plate (23) is hinged in the clamping groove (18) through a guide pin shaft (19), and a guide plate strip (20) is fixedly connected to the guide plate (23) through bolts, and the guide hydraulic cylinder (4), the adjusting hydraulic cylinder (13) and the clamping hydraulic cylinder (16) are connected with displacement sensors and pressure sensors and used for transmitting displacement data and pressure data of the guide hydraulic cylinder (4), the adjusting hydraulic cylinder (13) and the clamping hydraulic cylinder (16) to a control system, so that the intelligent control and safety protection of the running state and the running track of the guide device are facilitated.
2. The intelligent guide and guard device of the large-scale axle wedge cross rolling mill for rail transit according to claim 1, is characterized in that: a guide groove (7) is formed in the middle of the lower surface of the guide sliding seat (5), and a guide rail (8) corresponding to the guide groove (7) is arranged below the guide sliding seat (5) so as to limit and guide the guide sliding seat (5).
3. The intelligent guide and guard device of the large-scale axle wedge cross rolling mill for rail transit according to claim 1, is characterized in that: the left side and the right side of the guide sliding seat (5) are respectively provided with two guide eccentric shafts (10), guide rollers (12) are mounted on the guide eccentric shafts (10) and are used for being in rolling contact with the guide sliding grooves (6) and simultaneously propping against the guide sliding grooves (6) to ensure the stability of the guide sliding seat (5), a compression end cover (11) is mounted on the guide eccentric shafts (10), the compression end cover (11) is fixed on the upper surface of the guide sliding seat (5) through bolts, and the compression end cover (11) is clamped through screwing the bolts to fix the guide eccentric shafts (10).
4. The intelligent guide and guard device of the large-scale axle wedge cross rolling mill for the rail transit as claimed in claim 1, is characterized in that: sliding plates (9) are arranged at the contact part of the upper surface and the lower surface of the guide sliding seat (5) and the guide sliding chute (6) and the contact part of the guide sliding chute (6) and the guide idler wheel (12) so as to reduce the abrasion to the guide sliding seat (5).
5. The intelligent guide and guard device of the large-scale axle wedge cross rolling mill for rail transit according to claim 1, is characterized in that: the upper end of the guide plate (23) is fixedly connected with a steering adjusting plate (21), the steering adjusting plate (21) is fixedly connected with a guide plate strip (20) through bolts, two steering adjusting bolts (22) are in threaded connection with positions, corresponding to the steering adjusting plate (21), on the guide sliding seat (5), the two steering adjusting bolts (22) are respectively located on two sides of the guide pin shaft (19), the end portions of the steering adjusting bolts (22) are in contact with the steering adjusting plate (21) so as to press the steering adjusting plate (21) through screwing the steering adjusting bolts (22), and the purpose of adjusting the angle between the steering adjusting plate (21) and the rolling center line is achieved.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110181794.6A CN112974549B (en) | 2021-02-08 | 2021-02-08 | Intelligent guide device of large axle wedge cross rolling mill for rail transit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110181794.6A CN112974549B (en) | 2021-02-08 | 2021-02-08 | Intelligent guide device of large axle wedge cross rolling mill for rail transit |
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| CN112974549A CN112974549A (en) | 2021-06-18 |
| CN112974549B true CN112974549B (en) | 2022-06-17 |
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| CN114618968B (en) * | 2022-03-23 | 2023-09-05 | 太原理工大学 | Current stabilization applying device and method for electric field auxiliary cross wedge rolling axle |
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