CN112682478A - Worm gear and worm adjusting device with position change of backing bearing roller - Google Patents
Worm gear and worm adjusting device with position change of backing bearing roller Download PDFInfo
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- CN112682478A CN112682478A CN202011608808.XA CN202011608808A CN112682478A CN 112682478 A CN112682478 A CN 112682478A CN 202011608808 A CN202011608808 A CN 202011608808A CN 112682478 A CN112682478 A CN 112682478A
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- worm
- eccentric
- saddle
- gag lever
- lever post
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Abstract
The invention relates to a worm and gear adjusting device with a position-changing backing bearing roller, which comprises a rack, wherein a worm is arranged on the rack, an eccentric saddle is arranged on one side of the worm, the backing bearing roller is arranged in the eccentric saddle, the axial lead of the backing bearing roller is staggered with the axial lead of a mandrel penetrating through the backing bearing roller, and a worm gear meshed with the worm is arranged on one side of the eccentric saddle facing the worm. The invention has the advantage of adjusting the position of the backing bearing roller.
Description
Technical Field
The invention relates to the technical field of adjusting devices, in particular to a worm and gear adjusting device with a position-changing backing bearing roller.
Background
The invention relates to the spatial positioning and adjustment of multi-roll (8-roll and over 8-roll) rolling mill backing bearing rolls in a frame. The positioning of the "backing bearing roll" consisting of several backing bearings in a cluster mill is the basis for the stability of the cluster mill roll train. The roll diameters of the individual layers of the roll system vary continuously due to variations in the thickness of the rolled workpiece, and due to wear of the roll system during operation and the grinding of the rolls from time to eliminate cracks in the roll surfaces. The spatial position of the backing bearing roll, which is the basis for the position of the roll system, in the rolling mill needs to be constantly adjusted.
The existing design is adjusted by the mandrel eccentricity of the backing bearing roll, see pennsheng '20-roll mill and high-precision cold-rolled strip production' 2007 edition of the publication of metallurgy industry.
During rolling, the back lining bearing roller is stressed greatly, and a large torsional moment can be generated by a small eccentric amount. Because the outer diameter of the backing bearing is far larger than the shaft diameter of the mandrel, namely the balancing moment arm is far smaller than the torsion moment arm, the clamping force of the eccentric mandrel needs to be quite large to balance the torsion moment. And the torsional stress borne by the mandrel is also large.
The invention utilizes the eccentricity of the outer circle and the inner hole of the saddle to balance the torsional force, thereby not only increasing the adjustment range of the backing bearing roller, but also thoroughly eliminating the torsional stress born by the core shaft and improving the space positioning and the adjustment working condition of the backing bearing roller.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a worm and gear adjusting device with a position-changing backing bearing roller, which has the advantage of adjusting the position of the backing bearing roller.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a back lining bearing roller position variation's worm gear adjusting device, includes the frame, install the worm in the frame, one side of worm is provided with eccentric saddle, the inside of eccentric saddle is provided with back lining bearing roller, the axial lead of back lining bearing roller and the axial lead dislocation of wearing to establish the dabber in the back lining bearing roller, eccentric saddle is provided with the worm wheel with worm meshing towards one side of worm.
By adopting the technical scheme, during adjustment, the worm drives the worm wheel, so that the core shaft of the backing bearing roller does eccentric motion around the circle center of the sector of the saddle, and the backing bearing roller is driven to move or position in the inner cavity of the frame.
The invention is further configured to: one side of eccentric saddle is provided with the slider of being connected with eccentric saddle rotation, the middle part of slider articulates there is the dwang, the one end that the slider was kept away from to the dwang is provided with the rotation motor.
Through adopting above-mentioned technical scheme, the setting of slider can make things convenient for the rotation of eccentric saddle, reduces the friction between eccentric saddle and the frame. In addition, when the eccentric saddle does not need to move, the rotating motor is started to drive the rotating rod to rotate so as to drive the sliding piece to rotate to the inside of the eccentric saddle, and the spontaneous movement of the eccentric saddle is avoided.
The invention is further configured to: the slider includes the dead lever of being connected with the dwang rotation, the both ends of dead lever are provided with the gyro wheel.
Through adopting above-mentioned technical scheme, the dead lever rotates under the effect of dwang to with the surface contact of frame, eccentric saddle can conveniently rotate under the effect of gyro wheel afterwards.
The invention is further configured to: the frame is provided with support piece that is in eccentric saddle both sides, support piece includes the support cylinder with frame fixed connection, support cylinder is connected with the backup pad.
Through adopting above-mentioned technical scheme, when eccentric saddle need not rotate, can start the support cylinder and drive the backup pad and remove, remove when the backup pad and produce the extrusion back as for eccentric saddle, the backup pad that is in eccentric saddle both sides will restrict the rotation of eccentric saddle.
The invention is further configured to: the utility model discloses a spacing device for a bicycle saddle, including saddle, first gag lever post of one side fixedly connected with of saddle, be provided with the second gag lever post parallel with first gag lever post in the frame, the top of first gag lever post is provided with connects the rope, the upper end of second gag lever post is provided with the solid fixed ring that is used for connecting the rope and passes, the middle part of second gag lever post is provided with the live-rollers, the middle part of live-rollers is provided with the depressed groove that holds the connection rope, the middle part fixed connection of the one end of keeping away from first gag lever post and live-rollers of connection rope, be provided with restriction worm pivoted locating part on the live-.
Through adopting above-mentioned technical scheme, after eccentric saddle no longer rotates, let the live-rollers rotate around the axial lead of self, the live-rollers can drive and connect the rope and rotate to the side of live-rollers, play the effect of drawing in and connecting the rope in, after connecting the rope and being in the tensioning state, utilize the rotation of locating part restriction worm, first gag lever post and second gag lever post will be in the state of mutual restriction this moment to avoid first gag lever post and second gag lever post to produce the action of relative movement, consequently worm wheel and worm can not produce relative removal.
The invention is further configured to: the outer ring of the rotating roller is sleeved with a rotating gear, the rotating gear is meshed with a gear strip, a clamping groove is formed in the middle of the gear strip, and a fastening bolt at one end of the clamping groove penetrates through the gear strip.
Through adopting above-mentioned technical scheme, live-rollers pivoted in-process live-rollers will drive running gear and rotate, and running gear's rotation will drive the gear rack and remove along the length direction of self, and the gear rack will move towards the direction of worm, and the worm will be gone into the centre gripping inslot, and along with the removal of gear rack, the squeezing action of the worm and the cell wall in centre gripping groove will be stronger and stronger.
The invention is further configured to: and rubber is arranged on the groove wall of the clamping groove.
Through adopting above-mentioned technical scheme, the friction strength between the cell wall in worm and the centre gripping groove can be strengthened in the setting of rubber.
In conclusion, the invention has the following beneficial effects:
the invention relates to an eccentric saddle with a worm gear (called as an eccentric worm gear saddle for short), which adjusts the spatial position of a backing bearing roller through an eccentric worm gear of the saddle and a worm meshing device arranged in a machine frame. Its advantages are wide regulation range, low stress to regulating mechanism and high reliability.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment;
FIG. 2 is a schematic view of the structure of FIG. 1 from another perspective;
FIG. 3 is a schematic view of the eccentric saddle of FIG. 2 after rotation;
FIG. 4 is a schematic structural diagram of the frame, the eccentric saddle, the first limiting rod and the second limiting rod in the embodiment;
fig. 5 is a schematic structural diagram of a gear strip in the embodiment.
Reference numerals: 1. a frame; 2. a worm; 3. an eccentric saddle; 4. a backing bearing roll; 5. a worm gear; 6. rotating the rod; 7. rotating the motor; 8. fixing the rod; 9. a roller; 10. a support cylinder; 11. a support plate; 12. a first limit rod; 13. a second limiting rod; 14. connecting ropes; 15. a fixing ring; 16. a rotating roller; 17. a recessed groove; 18. a rotating gear; 19. a gear rack; 20. a clamping groove; 21. fastening a bolt; 22. rubber; 23. a mandrel; 24. and (5) tightening the nut.
Detailed Description
The invention is further described with reference to the accompanying drawings.
The utility model provides a back backing bearing roller position variation's worm gear adjusting device, as shown in fig. 1-5, includes frame 1, install worm 2 in the frame 1, one side of worm 2 is provided with eccentric saddle 3, the inside of eccentric saddle 3 is provided with back backing bearing roller 4, the axial lead of back backing bearing roller 4 and the axial lead dislocation of the dabber 23 of wearing to establish in back backing bearing roller 4, one side of eccentric saddle 3 orientation worm 2 is provided with the worm wheel 5 with worm 2 meshing.
One side of eccentric saddle 3 is provided with the slider of being connected with eccentric saddle 3 rotation, the middle part of slider articulates there is dwang 6, the one end that the slider was kept away from to dwang 6 is provided with rotation motor 7.
The slider includes a fixed lever 8 rotatably connected with the rotating lever 6, and rollers 9 are provided at both ends of the fixed lever 8.
The frame 1 is provided with support pieces at two sides of the saddle, each support piece comprises a support cylinder 10 fixedly connected with the frame 1, and each support cylinder 10 is connected with a support plate 11.
The utility model discloses a safety device for bicycle, including frame 1, first gag lever post 12 of one side fixedly connected with of saddle, be provided with the second gag lever post 13 parallel with first gag lever post 12 in the frame 1, the top of first gag lever post 12 is provided with connects rope 14, the upper end of second gag lever post 13 is provided with the solid fixed ring 15 that is used for connecting rope 14 and passes, the middle part of second gag lever post 13 is provided with live-rollers 16, the middle part of live-rollers 16 is provided with the depressed groove 17 that holds and connect rope 14, the middle part fixed connection of the one end of connecting rope 14 and live-rollers 16, be provided with restriction worm 2 pivoted locating part on the live-rollers 16.
The outer ring of the rotating roller 16 is sleeved with a rotating gear 18, the rotating gear 18 is meshed with a gear rack 19, a clamping groove 20 is formed in the middle of the gear rack 19, and a fastening bolt 21 located at one end of the clamping groove 20 penetrates through the gear rack 19. The fastening bolt 21 is threadedly connected with a fastening nut 24.
The walls of the clamping groove 20 are provided with rubber 22.
The circular hole of the mandrel 23 for fixing the backing bearing roller 4 on the eccentric saddle 3 and the circle center of the outer wall of the eccentric saddle 3 fixed in the inner cavity of the frame 1 are designed to be eccentric, and two or a plurality of worm gears 5 are arranged or processed on the outer wall of the sector arc of the eccentric saddle 3. The worm wheel 5 is engaged with the worm 2 when mounted in the frame 1. During adjustment, the worm 2 drives the worm wheel 5, so that the mandrel 23 of the backing bearing roller 4 eccentrically moves around the circle center of the sector of the eccentric saddle 3, and the backing bearing roller 4 is driven to move or position in the inner cavity of the frame 1.
The circle center of the fan-shaped cambered surface of the eccentric saddle 3 and the hole of the central spindle 23 for installing the backing bearing roller 4 on the eccentric saddle 3 are designed to be eccentric, and a fan-shaped worm wheel 5 is processed or installed on the fan-shaped cambered surface of the eccentric saddle 3 to form the eccentric saddle 3 with the worm wheel 5.
An eccentric saddle 3 is arranged in the inner cavity of a frame 1 and is meshed with a worm 2 arranged in the frame 1 to form a backing bearing roller 4 roller space position adjusting device.
The worm 2 is rotated to drive the worm wheel 5 and drive the eccentric saddle 3 to rotate. The back-up bearing roller 4 installed in the eccentric hole of the eccentric saddle 3 changes the position along with the back-up bearing roller to meet the rolling requirement and compensate the roller system space after the roller is worn. The worm 2 is rotated to drive the worm wheel and drive the eccentric saddle 3 to rotate. The back-up bearing roller 4 installed in the eccentric hole of the eccentric saddle 3 changes the position along with the back-up bearing roller to meet the rolling requirement and compensate the roller system space after the roller is worn.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like made within the design concept of the present invention should be included in the scope of the present invention.
Claims (7)
1. A worm gear adjusting device with a position-changing back lining bearing roller comprises a machine frame (1), and is characterized in that: install worm (2) on frame (1), one side of worm (2) is provided with eccentric saddle (3), the inside of eccentric saddle (3) is provided with back lining bearing roller (4), the axial lead of back lining bearing roller (4) and the axial lead dislocation of dabber (23) of wearing to establish in back lining bearing roller (4), one side of eccentric saddle (3) orientation worm (2) is provided with worm wheel (5) with worm (2) meshing.
2. A backing bearing roll position change worm gear adjustment device as claimed in claim 1, wherein: one side of eccentric saddle (3) is provided with the slider of being connected with eccentric saddle (3) rotation, the middle part of slider articulates there is dwang (6), the one end that the slider was kept away from in dwang (6) is provided with rotation motor (7).
3. A backing bearing roll position change worm gear adjustment device as claimed in claim 1, wherein: the slider includes and rotates dead lever (8) of being connected with dwang (6), the both ends of dead lever (8) are provided with gyro wheel (9).
4. A backing bearing roll position change worm gear adjustment device as claimed in claim 1, wherein: the support is characterized in that the frame (1) is provided with support pieces positioned on two sides of the eccentric saddle (3), each support piece comprises a support cylinder (10) fixedly connected with the frame (1), and each support cylinder (10) is connected with a support plate (11).
5. A backing bearing roll position change worm gear adjustment device as claimed in claim 1, wherein: the utility model discloses a spacing structure of eccentric saddle (3) is characterized in that one side fixedly connected with first gag lever post (12) of eccentric saddle (3), be provided with second gag lever post (13) parallel with first gag lever post (12) on frame (1), the top of first gag lever post (12) is provided with connects rope (14), the upper end of second gag lever post (13) is provided with solid fixed ring (15) that are used for connecting rope (14) and pass, the middle part of second gag lever post (13) is provided with live-rollers (16), the middle part of live-rollers (16) is provided with dead slot (17) that hold and connect rope (14), the one end that first gag lever post (12) was kept away from in live-rollers (14) and the middle part fixed connection of live-rollers (16), be provided with restriction worm (2) pivoted locating part on live-rollers (16).
6. The backing bearing roll position change worm gear adjustment device of claim 5, wherein: the outer ring of the rotating roller (16) is sleeved with a rotating gear (18), the rotating gear (18) is meshed with a gear rack (19), a clamping groove (20) is formed in the middle of the gear rack (19), and a fastening bolt (21) at one end of the clamping groove (20) penetrates through the gear rack (19).
7. The backing bearing roll position change worm gear adjustment device of claim 6, wherein: the wall of the clamping groove (20) is provided with rubber (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608808.XA CN112682478A (en) | 2020-12-30 | 2020-12-30 | Worm gear and worm adjusting device with position change of backing bearing roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011608808.XA CN112682478A (en) | 2020-12-30 | 2020-12-30 | Worm gear and worm adjusting device with position change of backing bearing roller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112682478A true CN112682478A (en) | 2021-04-20 |
Family
ID=75454916
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011608808.XA Pending CN112682478A (en) | 2020-12-30 | 2020-12-30 | Worm gear and worm adjusting device with position change of backing bearing roller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112682478A (en) |
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2020
- 2020-12-30 CN CN202011608808.XA patent/CN112682478A/en active Pending
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