CN110860580B - Device for adjusting press gap - Google Patents
Device for adjusting press gap Download PDFInfo
- Publication number
- CN110860580B CN110860580B CN201911072161.0A CN201911072161A CN110860580B CN 110860580 B CN110860580 B CN 110860580B CN 201911072161 A CN201911072161 A CN 201911072161A CN 110860580 B CN110860580 B CN 110860580B
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- pressing
- nut
- screw
- fixed beam
- gap
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D37/00—Tools as parts of machines covered by this subclass
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
The invention discloses a device for adjusting a gap under pressure, which comprises a fixed beam, wherein a pressure screw with a pressure nut is vertically and movably connected in the fixed beam, the pressure screw is in threaded connection and in clearance fit with the pressure nut, two ends of the pressure screw extend out of the outer side of the fixed beam, one end of the pressure screw is rotatably connected with a gap adjusting device, the gap adjusting device is fixedly connected with the pressure nut, the gap adjusting device is in threaded connection with one end of the fixed beam, and when the gap adjusting device is screwed relative to the fixed beam, the gap disappears. The invention provides a device for adjusting a gap by pressing, which solves the problem that in the prior art, a gap exists between a pressing screw and a nut, so that an idle stroke exists between the pressing screw and the pressing nut when relative motion starts, and the error of the pressing amount is large.
Description
Technical Field
The invention belongs to the technical field of metallurgical rolling, and particularly relates to a device for adjusting a pressing gap.
Background
In the field of steel rolling in the metallurgical industry, devices for adjusting the rolling reduction through the pressing screw and the nut in a multi-roll straightener are applied to a large number of applications, the accuracy of the rolling reduction is an important detection index, but the error of the rolling reduction is large and the accuracy of rolling or straightening of a strip is adversely affected because the pressing screw and the pressing nut are matched to form an inevitable gap, so that the idle stroke of relative motion starting exists between the pressing screw and the pressing nut, and the gap between the pressing screw and the nut is adjusted reliably.
Disclosure of Invention
The invention aims to provide a device for adjusting a pressing gap, which solves the problem that in the prior art, a gap exists between a pressing screw and a nut, so that an idle stroke exists between the pressing screw and the pressing nut when relative movement starts, and the error of the pressing amount is large.
The technical scheme adopted by the invention is that the device for adjusting the pressing gap comprises a fixed beam, wherein the inside of the fixed beam is vertically and movably connected with a pressing screw with a pressing nut, the pressing screw is in threaded connection and in clearance fit with the pressing nut, two ends of the pressing screw extend out of the outer side of the fixed beam, one end of the pressing screw is rotatably connected with a gap adjusting device, the gap adjusting device is fixedly connected with the pressing nut, the gap adjusting device is in threaded connection with one end of the fixed beam, and when the gap adjusting device is screwed relative to the fixed beam, the gap disappears.
The invention is also characterized in that:
the clearance adjusting device comprises a gland, the gland is provided with external threads, one end of the fixed beam is provided with internal threads, and the pressing screw penetrates out of the gland in the axial direction.
The screw down is provided with a connecting sleeve, an adjusting nut and a bearing in sequence along the axial direction, the connecting sleeve is fixedly connected with the screw down nut, the connecting sleeve is in threaded connection with the adjusting nut, the adjusting nut is fixedly connected with the bearing, a concave platform is arranged in the gland along the circumferential direction of the screw down, and the bearing is fixedly connected on the concave platform.
The disc spring is also included, and two ends of the disc spring are respectively clamped with the bearing and the concave platform.
The outer surface of the pressing nut is in threaded connection with a worm which is fixedly connected with a motor.
The invention has the beneficial effects that:
the invention provides a safe and reliable scheme for adjusting a pressing gap, which is characterized in that an adjusting nut device capable of synchronously rotating with a pressing nut is added, wherein the adjusting nut device comprises a pressing cover, an adjusting nut, a bearing and a disc spring group; the adjusting nut is indirectly connected with the pressing nut through the internal and external threads, and when the adjusting nut is adjusted in place, the adjusting nut and the pressing nut can synchronously rotate, so that the position stability after adjustment is ensured; and the disc spring device is matched with the adjusting nut, so that the movement of the pressing screw has a buffering effect, the thread impact is eliminated, the structure is optimized finally, the connecting sleeve is added to ensure that the pressing nut and the adjusting nut are indirectly connected and synchronously rotated, the process of processing internal threads on the pressing nut is avoided, and the manufacturing cost is reduced.
Drawings
Fig. 1 is a schematic structural view of a device for adjusting a pressing gap according to the present invention.
In the figure, 1 is a pressing nut, 2 is a pressing screw, 3 is a connecting sleeve, 4 is an adjusting nut, 5 is a disc spring, 6 is a bearing, 7 is a worm, 8 is a gland and 9 is a fixed beam.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
The invention provides a device for adjusting a press-down gap, which comprises a fixed beam 9, wherein a press-down screw 2 with a press-down nut 1 is vertically and movably connected inside the fixed beam 9, the press-down screw 2 is in threaded connection and in clearance fit with the press-down nut 1, two ends of the press-down screw 2 extend out of the outer side of the fixed beam 9, one end of the press-down screw is rotatably connected with a clearance adjusting device, the clearance adjusting device is fixedly connected with the press-down nut 1, the clearance adjusting device is in threaded connection with one end of the fixed beam 9, and when the clearance adjusting device is screwed relative to the fixed beam 9, the clearance disappears. The clearance adjusting device comprises a gland 8, the gland 8 is provided with external threads, one end of a fixed beam 9 is provided with internal threads, and the gland 8 is axially penetrated out of a screw pressing screw 2. The screw 2 is provided with coupling sleeve 3, adjusting nut 4, bearing 6 along the axial in order, and coupling sleeve 3 and screw 1 fixed connection, coupling sleeve 3 and adjusting nut 4 threaded connection, adjusting nut 4 and bearing 6 fixed connection, are provided with concave station 10 along screw 2 circumference in the gland 8, and bearing 6 rigid coupling is on concave station 10. The disc spring is characterized by further comprising a disc spring 5, and two ends of the disc spring 5 are respectively clamped with the bearing 6 and the concave platform 10. The outer surface of the screw-down nut 1 is connected with a worm 7 in a threaded manner, and the worm 7 is fixedly connected with a motor.
The working principle of the invention is that the screw down device is arranged in a fixed beam 9, after the device is assembled, firstly the disc spring 5 is adjusted to be reasonably configured with the adjusting nut 4, the adjusting nut 4 is ensured to have sufficient space for moving up and down, simultaneously the whole mechanism keeps damping, then the position of the gland 8 is adjusted, concretely, the gland 8 is rotated to enable the gland 8 to gradually approach the fixed beam 9, at the moment, the adjusting nut 4 is enabled to compress the pressing screw 2 to move upwards, the pressing screw 2 gradually moves upwards, when the pressing screw 2 is clung to the upper and lower nut surfaces of the pressing nut 1, the pressing gap is eliminated, thus the accuracy of the stroke in the lifting process of the pressing screw is ensured, the connecting sleeve 3 is fixed with the pressing nut 1 and is connected with the adjusting nut 4 through internal and external threads, when the pressing nut 1 rotates, the adjusting nut 4 can synchronously rotate, the motor provides power for the worm 7, the worm 7 is meshed with a worm wheel on the outer side of the pressing nut 1, the pressing nut 1 is rotated, and the pressing screw 2 is driven to move up and down to provide pressing amount.
The invention aims to eliminate the gap between the screw down nut 1 and the screw down screw 2, and how the motor drives the worm 7 is out of the scope of the invention.
The invention provides a safe and reliable scheme for adjusting the pressing gap, and solves the problem that in the prior art, a gap exists between a pressing screw and a nut, so that an idle stroke exists between the pressing screw and the pressing nut when relative motion starts, and the error of the pressing amount is large.
Claims (1)
1. The device for adjusting the pressing gap is characterized by comprising a fixed beam (9), wherein the fixed beam (9) is vertically and movably connected with a pressing screw (2) with a pressing nut (1), the pressing screw (2) is in threaded connection and clearance fit with the pressing nut (1), two ends of the pressing screw (2) extend out of the outer side of the fixed beam (9), one end of the pressing screw is rotatably connected with a clearance adjusting device, the clearance adjusting device is fixedly connected with the pressing nut (1), the clearance adjusting device is in threaded connection with one end of the fixed beam (9), and when the clearance adjusting device is screwed relative to the fixed beam (9), the clearance disappears;
the clearance adjusting device comprises a gland (8), the gland (8) is provided with external threads, one end of the fixed beam (9) is provided with internal threads, and the screw-down (2) axially penetrates out of the gland (8);
the screw-down structure is characterized in that a connecting sleeve (3), an adjusting nut (4) and a bearing (6) are sequentially arranged on the screw-down (2) along the axial direction, the connecting sleeve (3) is fixedly connected with the screw-down nut (1), the connecting sleeve (3) is in threaded connection with the adjusting nut (4), the adjusting nut (4) is fixedly connected with the bearing (6), a concave platform (10) is arranged in the gland (8) along the circumferential direction of the screw-down (2), and the bearing (6) is fixedly connected on the concave platform (10);
the disc spring is characterized by further comprising a disc spring (5), and two ends of the disc spring (5) are respectively clamped with the bearing (6) and the concave platform (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072161.0A CN110860580B (en) | 2019-11-05 | 2019-11-05 | Device for adjusting press gap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911072161.0A CN110860580B (en) | 2019-11-05 | 2019-11-05 | Device for adjusting press gap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110860580A CN110860580A (en) | 2020-03-06 |
| CN110860580B true CN110860580B (en) | 2021-06-01 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911072161.0A Active CN110860580B (en) | 2019-11-05 | 2019-11-05 | Device for adjusting press gap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110860580B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114378115A (en) * | 2022-02-24 | 2022-04-22 | 中冶赛迪工程技术股份有限公司 | Continuous casting and rolling pendulum shear |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209746U (en) * | 1986-12-05 | 1987-10-31 | 刘天民 | Clearance adjuster for overrunning brake-shoe (2,3 type) |
| US5303606A (en) * | 1993-04-15 | 1994-04-19 | Kokinda Mark A | Anti-backlash nut having a free floating insert for applying an axial force to a lead screw |
| CN201321054Y (en) * | 2008-12-16 | 2009-10-07 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake clearance adjusting device |
| CN202185455U (en) * | 2011-06-29 | 2012-04-11 | 北京京诚瑞信长材工程技术有限公司 | Roll gap adjusting device for rolling mill |
| CN103692597A (en) * | 2012-09-28 | 2014-04-02 | 大连橡胶塑料机械股份有限公司 | Double-nut distance-adjusting device for extrusion tablet machine |
| CN109751378A (en) * | 2017-11-05 | 2019-05-14 | 王杰 | A kind of anti-loosening locking mechanism |
-
2019
- 2019-11-05 CN CN201911072161.0A patent/CN110860580B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86209746U (en) * | 1986-12-05 | 1987-10-31 | 刘天民 | Clearance adjuster for overrunning brake-shoe (2,3 type) |
| US5303606A (en) * | 1993-04-15 | 1994-04-19 | Kokinda Mark A | Anti-backlash nut having a free floating insert for applying an axial force to a lead screw |
| CN201321054Y (en) * | 2008-12-16 | 2009-10-07 | 南车戚墅堰机车车辆工艺研究所有限公司 | Brake clearance adjusting device |
| CN202185455U (en) * | 2011-06-29 | 2012-04-11 | 北京京诚瑞信长材工程技术有限公司 | Roll gap adjusting device for rolling mill |
| CN103692597A (en) * | 2012-09-28 | 2014-04-02 | 大连橡胶塑料机械股份有限公司 | Double-nut distance-adjusting device for extrusion tablet machine |
| CN109751378A (en) * | 2017-11-05 | 2019-05-14 | 王杰 | A kind of anti-loosening locking mechanism |
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| Publication number | Publication date |
|---|---|
| CN110860580A (en) | 2020-03-06 |
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