CN112296095A - Novel short stress rolling mill - Google Patents
Novel short stress rolling mill Download PDFInfo
- Publication number
- CN112296095A CN112296095A CN202011117490.5A CN202011117490A CN112296095A CN 112296095 A CN112296095 A CN 112296095A CN 202011117490 A CN202011117490 A CN 202011117490A CN 112296095 A CN112296095 A CN 112296095A
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- Prior art keywords
- worm
- rolling mill
- worm wheel
- box body
- encoder
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Classifications
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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
- B21B31/16—Adjusting or positioning rolls
- B21B31/18—Adjusting or positioning rolls by moving rolls axially
-
- 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
- B21B31/16—Adjusting or positioning rolls
- B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
- B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
- B21B37/58—Roll-force control; Roll-gap control
- B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention discloses a novel short stress rolling mill which comprises a base, a guide beam, a lower rolling mechanism, an upper rolling mechanism, an axial adjusting mechanism and a pressing mechanism, wherein the guide beam is arranged on the base; the axial adjusting mechanism comprises a fixed seat, a first hydraulic motor, a connecting sleeve, a first worm, a flexible coupling, an encoder and an encoder protecting cover; through the first worm of first hydraulic motor drive, the roller mechanism motion is rolled in the first worm drive to the automatic axial adjustment of rolling mechanism in the realization, and can also improve the precision of axial adjustment through the axial displacement of the roller mechanism in the encoder control, and can also reduce the shake of encoder, the life of extension encoder through flexible coupling.
Description
Technical Field
The invention relates to the technical field of metal rolling, in particular to a novel short-stress rolling mill.
Background
The short stress rolling mill is used as a leading machine type of a small rolling mill, is widely applied to bar, wire and section steel production lines, and plays a role in improving product performance and precision and playing a role in lifting, wherein an axial adjusting structure of a short stress line rolling mill roll system plays an axial adjusting role in the assembling process; however, the axial adjustment of the existing short-stress rolling mill roll system is mostly manual adjustment, and the adjustment mode has low adjustment speed and poor adjustment precision; in addition, most of the screw-down mechanisms of the existing short stress rolling mills are provided with worm gears on pull rods inside four stand columns of the short stress rolling mill, then the worm is driven by a motor to move, the worm drives the worm gears on the pull rods to move, and then the pull rods are in threaded fit with the rolling mechanisms, so that the rolling mechanisms of the short stress rolling mill can move up and down on the pull rods, and further the roll gap adjustment of the short stress rolling mill is completed; however, the four worm wheel pressing mechanism has complex structure, poor stability and inaccurate pressing amount, and a pair of hydraulic cylinders needs to be additionally arranged to balance and eliminate gaps so as to realize the loaded pressing of the rolling mechanism.
Disclosure of Invention
In view of the above, the present invention aims to provide a novel short stress rolling mill which can realize automatic axial adjustment, improve adjustment accuracy, and has good stability of a screw-down mechanism and high transmission accuracy of the screw-down mechanism.
In order to solve the technical problems, the technical scheme of the invention is as follows: a novel short stress rolling mill comprises a base, a guide beam arranged on the base, an upright post arranged on the base, a lower roller mechanism arranged on the upright post, an upper roller mechanism arranged on the upright post and positioned above the lower roller mechanism, an axial adjusting mechanism arranged on the upright post and positioned at one end of the upper roller mechanism, and a pressing mechanism arranged on the upright post and positioned above the upper roller mechanism; axial guiding mechanism includes the fixing base of fixed mounting on the stand, sets up the first hydraulic motor of fixing base one end sets up first hydraulic motor one end, be located the inside adapter sleeve of fixing base sets up the first worm of keeping away from first hydraulic motor one end at the adapter sleeve, sets up the flexible coupling of adapter sleeve one end is kept away from to first worm, sets up the encoder of first worm one end is kept away from to flexible coupling, encoder and flexible coupling all are located the inside of encoder safety cover.
Preferably, the lower rolling mechanism comprises a lower roller and lower bearing blocks arranged at two ends of the lower rolling roller; the upper rolling mechanism comprises an upper roller, upper bearing blocks arranged at two ends of the upper roller, and a first worm wheel arranged at one end of the upper roller and correspondingly meshed with the first worm.
Preferably, the pressing mechanism comprises a first reduction gearbox fixedly mounted on the stand column, a second hydraulic motor arranged at one end of the first reduction gearbox, a coupler arranged at one end of the first reduction gearbox, which is far away from the second hydraulic motor, a worm connecting shaft arranged at one end of the coupler, which is far away from the first reduction gearbox, a clamping shell coupler arranged at one end of the worm connecting shaft, which is far away from the coupler, and a second reduction gearbox arranged at one end of the clamping shell coupler, which is far away from the worm connecting shaft.
Preferably, the first reduction gearbox comprises a box body, a worm gear shaft arranged in the box body, a first hollow shaft arranged in the box body and positioned on one side of the worm gear shaft, a second hollow shaft arranged in the box body and positioned on the other side of the worm gear shaft, a second worm gear arranged on the worm gear shaft, a second worm arranged between the worm gear shaft and the first hollow shaft and correspondingly meshed with the second worm gear, a driving gear arranged on the worm gear shaft and positioned below the second worm gear, a first driven gear arranged on the first hollow shaft and correspondingly meshed with the driving gear, and a second driven gear arranged on the second hollow shaft and correspondingly meshed with the driving gear; one end of the second worm is fixedly connected with the second hydraulic motor, and the other end of the second worm is fixedly connected with the worm connecting shaft through a coupler.
Preferably, the structure of the second reduction box body is consistent with that of the first reduction box body. The stand is provided with four, and respectively fixed mounting be in the four corners department of base, the inside fixed mounting of stand has the pull rod. The first reduction gearbox and the second reduction gearbox are both fixedly arranged at the top of the upright post through pull rods and are both fixedly connected with the pull rods through a first hollow shaft and a second hollow shaft; the lower roller is in threaded connection with the pull rod through a lower bearing seat, and the upper roller is in threaded connection with the pull rod through an upper bearing seat.
Preferably, a worm wheel bearing cover located above the worm wheel shaft is fixed to the top of the box body through a screw.
Preferably, a graduated ring located above the box body is fixed to the upper end of the first hollow shaft through a screw, and a pointer located on one side of the graduated ring is arranged at the top of the box body.
Preferably, a lower encoder top cover positioned above the box body is fixed at the upper end of the second hollow shaft through a screw; the lower top cover of the encoder is used for fixedly mounting the encoder, and the pressing amount of the pressing mechanism is controlled by the encoder.
Preferably, the second worm is a double-envelope second worm.
The technical effects of the invention are mainly embodied as follows: the first hydraulic motor drives the first worm, and the first worm drives the upper roller mechanism to move, so that the automatic axial adjustment of the upper roller mechanism is realized, the axial displacement of the upper roller mechanism can be controlled through the encoder, the axial adjustment precision is improved, the jitter of the encoder can be reduced through the flexible coupling, and the service life of the encoder is prolonged; the second hydraulic motor can drive the upper roller binding mechanism and the lower roller binding mechanism on the stand column to move up and down through the primary transmission of the second worm and the second worm gear and the secondary transmission of the driving gear, the first driven gear and the second driven gear, the opening degree of the rolling mill is adjusted, and compared with the traditional pressing mechanisms of four worm gears, the pressing mechanism of the rolling mill has the advantages that the transmission stability is better and the transmission precision is higher through the secondary transmission mode of worm gear transmission and gear transmission.
Drawings
FIG. 1 is a schematic structural view of a novel short stress rolling mill in front view;
FIG. 2 is a left side view of FIG. 1;
FIG. 3 is a schematic structural view of the pilot beam of FIG. 1;
FIG. 4 is a schematic structural view of the axial adjustment mechanism of FIG. 2;
FIG. 5 is a schematic structural view of the depressing mechanism of FIG. 1;
FIG. 6 is a left side view of FIG. 5;
FIG. 7 is a top view of FIG. 5;
FIG. 8 is a cross-sectional view A-A of FIG. 5;
fig. 9 is a sectional view B-B of fig. 7.
Detailed Description
The following detailed description of the embodiments of the present invention is provided in order to make the technical solution of the present invention easier to understand and understand.
In the present embodiment, it should be understood that the terms "middle", "upper", "lower", "top", "right", "left", "above", "back", "middle", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the present embodiment, if the connection or fixing manner between the components is not specifically described, the connection or fixing manner may be a bolt fixing manner, a pin connecting manner, or the like, which is commonly used in the prior art, and therefore, details thereof are not described in the present embodiment.
A novel short stress rolling mill is shown in figures 1-4 and comprises a base 1, a guide beam 2 arranged on the base 1, a stand column 3 arranged on the base 1, a lower roller mechanism 4 arranged on the stand column 1, an upper roller mechanism 5 arranged on the stand column 3 and positioned above the lower roller mechanism 4, an axial adjusting mechanism 6 arranged on the stand column 3 and positioned at one end of the upper roller mechanism 5, and a pressing mechanism 7 arranged on the stand column 3 and positioned above the upper roller mechanism 5.
The lower rolling mechanism 4 comprises a lower rolling roller 41 and lower bearing blocks 42 arranged at two ends of the lower rolling roller 41; the upper rolling mechanism 5 comprises an upper rolling roller 51, upper bearing blocks 52 arranged at two ends of the upper rolling roller 51, and a first worm wheel 53 arranged at one end of the upper rolling roller 51 and correspondingly meshed with the first worm 64, wherein cylindrical roller bearings for bearing radial load and thrust roller bearings for bearing axial load are fixedly arranged inside the lower bearing block 42 and the upper bearing block 52.
As shown in fig. 5-9, the pressing mechanism 7 includes a first reduction gearbox 71 fixedly mounted on the upright 3, a second hydraulic motor 72 disposed at one end of the first reduction gearbox 71, a coupling 73 disposed at one end of the first reduction gearbox 71 away from the second hydraulic motor 72, a worm connecting shaft 74 disposed at one end of the coupling 73 away from the first reduction gearbox 71, a clamping coupling 75 disposed at one end of the worm connecting shaft 74 away from the coupling 73, and a second reduction gearbox 76 disposed at one end of the clamping coupling 75 away from the worm connecting shaft 74.
The first reduction gearbox 71 comprises a box body 711, a worm gear shaft 712 arranged inside the box body 711, a first hollow shaft 713 arranged inside the box body 711 and positioned on one side of the worm gear shaft 712, a second hollow shaft 714 arranged inside the box body 711 and positioned on the other side of the worm gear shaft 712, a second worm gear 715 arranged on the worm gear shaft 712, a second worm 716 arranged between the worm gear shaft 712 and the first hollow shaft 714 and correspondingly meshed with the second worm gear 715, a driving gear 717 arranged on the worm gear shaft 712 and positioned below the second worm gear 715, a first driven gear 718 arranged on the first hollow shaft 713 and correspondingly meshed with the driving gear 717, and a second driven gear 71 arranged on the second hollow shaft 714 and correspondingly meshed with the driving gear 717; one end of the second worm 715 is fixedly connected with the second hydraulic motor 72, and the other end of the second worm 715 is fixedly connected with the worm connecting shaft 74 through a coupler 73. A worm bearing cover 7111 positioned above the worm shaft 712 is fixed to the top of the case 711 by a screw. A graduated ring 7131 positioned above the box body is fixed at the upper end of the first hollow shaft 713 through a screw, a pointer 7112 positioned on one side of the graduated ring 7131 is arranged at the top of the box body 711, and a worker can determine the pressing amount of the pressing mechanism 7 through the pointer 7112 and the graduated ring 7131. An encoder lower top cover 7141 positioned above the box body 711 is fixed at the upper end of the second hollow shaft 714 through a screw; the encoder lower top cover 7141 is used for fixedly mounting an encoder, and the pressing amount of the pressing mechanism 7 is controlled by the encoder. The second worm 716 is a double enveloping second worm.
The structure of the second reduction case body 76 is identical to that of the first reduction case 71. The stand 3 is provided with four, and respectively fixed mounting in the four corners department of base 1, the inside fixed mounting of stand 3 has the pull rod. The first reduction gearbox 71 and the second reduction gearbox 76 are both fixedly arranged at the top of the upright post 3 through pull rods, and the first reduction gearbox 71 and the second reduction gearbox 76 are both fixedly connected with the pull rods through a first hollow shaft 713 and a second hollow shaft 714; the lower roller 41 is in threaded connection with the pull rod through a lower bearing seat 42, and the upper roller 51 is in threaded connection with the pull rod through an upper bearing seat 52. The second hydraulic motor 72 drives a second worm wheel 715 to rotate through the second worm 716, the second worm wheel 715 drives a worm wheel shaft 712 to rotate, the worm wheel shaft 712 drives a first driven gear 718 and a second driven gear 719 through a driving gear 717 to rotate, the first gear 718 and the second gear 719 respectively drive a first hollow shaft 713 and a second hollow shaft 714 to rotate, the first hollow shaft 713 and the second hollow shaft 714 drive a pull rod to rotate, and therefore the lower bearing seat 42 and the upper bearing seat 52 move up and down on the pull rod through threaded fit between the pull rod and the lower bearing box 42 and the upper bearing box 52, and the opening degree of the rolling mill is adjusted.
The technical effects of the invention are mainly embodied as follows: the first hydraulic motor drives the first worm, and the first worm drives the upper roller mechanism to move, so that the automatic axial adjustment of the upper roller mechanism is realized, the axial displacement of the upper roller mechanism can be controlled through the encoder, the axial adjustment precision is improved, the jitter of the encoder can be reduced through the flexible coupling, and the service life of the encoder is prolonged; the second hydraulic motor can drive the upper roller binding mechanism and the lower roller binding mechanism on the stand column to move up and down through the primary transmission of the second worm and the second worm gear and the secondary transmission of the driving gear, the first driven gear and the second driven gear, the opening degree of the rolling mill is adjusted, and compared with the traditional pressing mechanisms of four worm gears, the pressing mechanism of the rolling mill has the advantages that the transmission stability is better and the transmission precision is higher through the secondary transmission mode of worm gear transmission and gear transmission.
Of course, the above is only a typical example of the present invention, and besides, the present invention may have other embodiments, and all technical solutions formed by using equivalent substitutions or equivalent transformations fall within the scope of the present invention.
Claims (8)
1. A novel short stress rolling mill comprises a base, a guide beam arranged on the base, an upright post arranged on the base, a lower roller mechanism arranged on the upright post, an upper roller mechanism arranged on the upright post and positioned above the lower roller mechanism, an axial adjusting mechanism arranged on the upright post and positioned at one end of the upper roller mechanism, and a pressing mechanism arranged on the upright post and positioned above the upper roller mechanism; the method is characterized in that: axial guiding mechanism includes the fixing base of fixed mounting on the stand, sets up the first hydraulic motor of fixing base one end sets up the adapter sleeve of first hydraulic motor one end sets up the first worm of keeping away from first hydraulic motor one end at the adapter sleeve, sets up the flexible coupling of adapter sleeve one end is kept away from to first worm, sets up the encoder of first worm one end is kept away from to flexible coupling, encoder and flexible coupling all are located the inside of encoder safety cover.
2. A novel short stress rolling mill as claimed in claim 1, characterized in that: the lower roll mechanism comprises a lower roll and lower bearing seats arranged at two ends of the lower roll; the upper rolling mechanism comprises an upper roller, upper bearing blocks arranged at two ends of the upper roller, and a first worm wheel arranged at one end of the upper roller and correspondingly meshed with the first worm.
3. A novel short stress rolling mill as claimed in claim 1, characterized in that: the pressing mechanism comprises a first reduction gearbox fixedly mounted on the stand column, a second hydraulic motor arranged at one end of the first reduction gearbox, a coupler arranged at one end, far away from the second hydraulic motor, of the first reduction gearbox, a worm connecting shaft arranged at one end, far away from the first reduction gearbox, of the coupler, a clamping shell coupler arranged at one end, far away from the coupler, of the worm connecting shaft, and a second reduction gearbox arranged at one end, far away from the worm connecting shaft, of the clamping shell coupler.
4. A novel short stress rolling mill as claimed in claim 3, characterized in that: the first reduction box comprises a box body, a worm wheel shaft arranged in the box body, a first hollow shaft arranged in the box body and located on one side of the worm wheel shaft, a second hollow shaft arranged in the box body and located on the other side of the worm wheel shaft, a second worm wheel arranged on the worm wheel shaft, a second worm arranged between the worm wheel shaft and the first hollow shaft and correspondingly meshed with the second worm wheel, a driving gear arranged on the worm wheel shaft and located below the second worm wheel, a first driven gear arranged on the first hollow shaft and correspondingly meshed with the driving gear, and a second driven gear arranged on the second hollow shaft and correspondingly meshed with the driving gear.
5. The novel short stress rolling mill of claim 4, wherein: and a worm wheel bearing cover positioned above the worm wheel shaft is fixed on the top of the box body through a screw.
6. The novel short stress rolling mill of claim 4, wherein: the upper end of the first hollow shaft is fixed with a graduated ring above the box body through a screw, and the top of the box body is provided with a pointer positioned on one side of the graduated ring.
7. The novel short stress rolling mill of claim 4, wherein: and a lower top cover of the encoder, which is positioned above the box body, is fixed at the upper end of the second hollow shaft through screws.
8. The novel short stress rolling mill of claim 4, wherein: the second worm is a double-envelope second worm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117490.5A CN112296095A (en) | 2020-10-19 | 2020-10-19 | Novel short stress rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011117490.5A CN112296095A (en) | 2020-10-19 | 2020-10-19 | Novel short stress rolling mill |
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| CN112296095A true CN112296095A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011117490.5A Pending CN112296095A (en) | 2020-10-19 | 2020-10-19 | Novel short stress rolling mill |
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| RU2048220C1 (en) * | 1993-10-08 | 1995-11-20 | Акционерное общество "Северсталь" | Device for radial and axial adjustment of stand roll |
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| CN210344166U (en) * | 2019-06-28 | 2020-04-17 | 中冶华天工程技术有限公司 | High-precision heavy-duty gear box |
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Application publication date: 20210202 |
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