CN210475364U - Double-rotating-shaft cantilever type skew rolling mill - Google Patents
Double-rotating-shaft cantilever type skew rolling mill Download PDFInfo
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- CN210475364U CN210475364U CN201920934997.6U CN201920934997U CN210475364U CN 210475364 U CN210475364 U CN 210475364U CN 201920934997 U CN201920934997 U CN 201920934997U CN 210475364 U CN210475364 U CN 210475364U
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Abstract
The utility model relates to the technical field of metal plastic forming technology and equipment, and provides a double-rotating shaft cantilever type skew rolling mill which mainly comprises a base, a cantilever type roller system, a gear synchronizing mechanism, a radial pressing mechanism, a frame, a material guiding unit and an inclination angle adjusting mechanism; the cantilever type roller system is tightened by a bolt at the back of the rolling mill frame, and the inclination angle adjustment of the roller system is realized by an inclination angle adjusting mechanism; 2 the stand is supported by a double-rotating shaft of a base of the rolling mill; synchronous centering and pressing down of the two racks are realized through a gear synchronous mechanism, and the central line of the rolling mill in the vertical direction is ensured to be fixed; the radial pressing device is arranged above the rack, and the roll spacing adjustment of the two rolls is realized by rotating the pressing nut; the inclination angle adjusting mechanism is placed at the corner of the frame, so that not only can space be saved, but also the action line length can realize high-precision adjustment of the inclination angle of the roller system. The utility model relates to an ingenious has the roll change convenience, and the vertical center line position of rolling mill is fixed, advantages such as installation adjustment is convenient, is applicable to the production of big minor diameter steel ball in batches.
Description
Technical Field
The utility model relates to a metal plastic forming technology and equipment technical field, in particular to double-rotating shaft cantilever type skew rolling mill.
Background
The steel balls are widely applied in industrial production, particularly the consumption of the steel balls in the field of mine beneficiation is huge, data shows that the consumption of the steel balls reaches millions of tons every year, so that along with the continuous increase of the application and the demand of the steel balls, the requirements on the steel ball production and manufacturing technology are increasingly improved, and the steel balls are low in consumption, clean, high in quality and high in efficiency and are the development direction of the steel ball production in the future.
At present, two main ways for producing steel balls in China exist, one is cold heading, although the production capacity is considerable, the cold heading has serious abrasion on the inner cavity of a die, the labor intensity is high, the efficiency is not high, the cost is not low, and the pollution is serious. The other one is steel ball casting forming, the greatest advantage of the casting forming method is that the required metallographic structure can be obtained by optimizing the material, and then the steel balls with different surface hardness and wear resistance can be obtained, and the casting method has the defects of heavy mould and cold shut of the ball blank. Compared with other forming methods, the spiral hole type skew rolling has the characteristics of high production efficiency, small working load, excellent product performance, cleanness, no pollution and high material utilization rate. Therefore, the application of the skew rolling steel ball technology is the trend of steel ball production in the future, but most of the skew rolling mills at present have the defects of complex installation and adjustment steps, complex roll changing steps, low adjustment precision, single product production and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art, provide a double pivot cantilever type skew rolling mill, adopt cantilever type roll and double pivot rack construction can realize swiftly roll change, simplify the installation adjustment flow, roll multiple diameter steel ball, two frame synchronous centering push down functions such as feed.
The technical scheme of the utility model as follows:
a double-rotating-shaft cantilever type skew rolling mill comprises a base unit, a material guide unit, a rack unit, a gear synchronization mechanism, a cantilever type roller system, a radial pressing mechanism and an inclination angle adjusting mechanism;
the base unit is used for mounting the skew rolling mill;
the frame unit comprises a left frame and a right frame which are fixedly arranged on the base unit through a left frame rotating shaft and a right frame rotating shaft respectively, and the left frame rotating shaft and the right frame rotating shaft are arranged in an axisymmetric mode by taking the blank axis as an axis; the left frame and the right frame can respectively rotate around a left frame rotating shaft and a right frame rotating shaft;
the cantilever type roller system comprises 2 rollers which are respectively and fixedly arranged on the left rack and the right rack, and is used for rolling blanks;
the gear synchronizing mechanism is used for enabling the left rack and the right rack to synchronously and reversely rotate, and comprises 2 synchronizing gears which are respectively fixed at the bottoms of the left rack and the right rack;
the radial pressing mechanism is arranged at the upper parts of the left frame and the right frame and is used for adjusting the opening distance of the upper parts of the left frame and the right frame so as to adjust the roll spacing of 2 rolls;
the inclination angle adjusting mechanism is arranged at the lower parts of the left frame and the right frame and is used for adjusting the inclination angle of the axis of the roller relative to the axis of the blank;
the material guide unit is fixedly arranged on the base unit, is arranged coaxially with the billet and is used for preventing the billet from swinging in the rolling process.
Further, the cantilever type roller system comprises a left roller system and a right roller system; the left roller system and the right roller system are respectively provided with a bearing on one side, and the other side is used for fixing the roller by using a locking nut.
Furthermore, the left roller system and the right roller system respectively comprise an inclination angle adjusting gear, a roller, a bearing seat, a speed reducer and a servo motor;
the rollers are arranged on the roller shafts; the servo motor is connected with the speed reducer through a bolt, the speed reducer is arranged on the bearing block through a bolt, and an output shaft of the speed reducer is connected with the roll shaft through a key to drive the shaft system to rotate; the inclination angle adjusting gear is connected with the bearing seat through a bolt; the bearing seat is fixed with the left frame/the right frame through a back tensioning bolt.
Further, the gear synchronizing mechanism comprises a left gear and a right gear; the left gear is arranged at the end part of the rotating shaft of the left frame and is concentric with the rotating shaft of the left frame; the right gear is arranged at the end part of the rotating shaft of the right frame and is concentric with the rotating shaft of the right frame; the left gear is meshed with the right gear, so that the left frame and the right frame respectively rotate around the left rotating shaft of the frame and the right rotating shaft of the frame in the same speed and opposite directions.
Further, the radial pressing mechanism comprises a screw rod, a pressing nut, a first dial, a cylindrical washer and a spherical washer;
the lead screw is connected with the left rack and the right rack through a spherical gasket and a cylindrical gasket; the dial is connected with the screw rod through a bolt;
the cylindrical gasket is fixed on the rack through a bolt, the spherical gasket is sunk into the rack for 10mm, and the rack can be locked through the spherical gasket after the distance between the 2 left racks and the right rack is adjusted, so that the change of the distance between the upper openings of the left rack and the right rack in the rolling process is prevented.
When the screw-down nut is rotated, the screw-down nut shortens or enlarges the opening distance of the upper parts of the left frame and the right frame under the action of the cylindrical washer, and further the adjustment of the distance between the 2 rollers is realized.
Furthermore, the inclination angle adjusting mechanism comprises 2 sets of components, wherein each set of component comprises a second dial, a bearing, a rack nut and an inclination angle adjusting rotating shaft;
the inclination angle adjusting rotating shaft is arranged at the lower part of the left frame/the right frame through a bearing; the inclination angle adjusting rotating shaft is provided with rotating shaft threads; when the inclination angle adjusting rotating shaft rotates, the inclination angle adjusting rotating shaft only rotates without axial feeding due to the action of the bearing, the rotating shaft thread drives the rack nut to move along the axis direction, the inclination angle adjusting gear is driven to rotate, and the inclination angle adjustment of the roll axis relative to the blank axis is realized; the second dial is used for reading the size of the inclination angle in real time.
Further, the base unit comprises a base, a frame rotating shaft seat and a frame rotating shaft cover; the frame rotating shaft seat is fixed above the base, and the frame rotating shaft cover is arranged above the rotating shaft seat; the frame rotating shaft seat and the frame rotating shaft cover are vertically split seats of the frame rotating shaft, and frame rotating shaft mounting holes are machined by taking the blank axis as a symmetry center.
Furthermore, a drainage floor drain is arranged on the base.
Further, the material guiding unit comprises a guide plate seat, a material guiding device and a guide plate;
the guide plate seat is fixed on the frame rotating shaft cover in a welding mode, the guide device is connected with the frame rotating shaft cover through a bolt, and the guide plate is fixed on the guide plate seat through a bolt.
Furthermore, the left frame and the right frame are both of an L-shaped structure, and the frame is respectively provided with a frame rotating shaft mounting hole, an inclination angle adjusting mechanism mounting hole, a back tensioning bolt mounting hole and a radial pressing mechanism mounting hole from bottom to top.
The utility model has the advantages that:
1. the double-rotating-shaft type rack structure is adopted, the distance from the axis of a roller system is short, the position fluctuation of a horizontal rolling line is small when the distance of the rack is adjusted, and the whole structure is more stable.
2. The rolling mill frame is an L-shaped frame with a double-flash structure, and the rolling mill has good integrity and high strength.
3. The roller system adopts a cantilever type roller system structure, only a single side is provided with a bearing, the roller system structure is simplified on the premise of ensuring the use strength, the roller changing speed is greatly improved, and the roller changing time is shortened.
4. By adopting the novel inclination angle adjusting mechanism, the adjustment is convenient, the space is saved, the action line is long, the high-precision adjustment can be realized, and the stability of the rolling process can be improved by the thread self-locking function.
5. The gear synchronizing mechanism can ensure that the two racks are pressed down and fed simultaneously, and the position of a vertical rolling central line is fixed.
Drawings
Fig. 1 is a schematic structural view of a double-spindle cantilever skew rolling mill according to an embodiment of the present invention.
Fig. 2 is a schematic structural view of a rolling mill base unit in the embodiment.
Fig. 3 is a schematic structural diagram of the gear synchronizing mechanism in the embodiment.
Fig. 4 is a schematic structural diagram of the rack in the embodiment.
Fig. 5 is a schematic structural view of the radial pressing mechanism in the embodiment.
FIG. 6 is a schematic structural view of the cantilevered roller system in the embodiment.
Fig. 7 is a schematic structural diagram of an inclination angle adjusting mechanism according to an embodiment.
Fig. 8 is a schematic structural view of a material guide unit in an embodiment.
In the figure: 1. a base; 2. a gear synchronizing mechanism; 3. a frame; 4. a material guiding device; 5. a pressing device; 6. a cantilever type roller system; 7. an inclination angle adjusting mechanism; 8. a guide plate; 9. a guide plate seat; 10. a left rotating shaft; 11. a rotating shaft cover; 12. a right rotating shaft; 13. a rotating shaft seat; 14. a floor drain for draining water; 15. a left gear; 16. a right gear; 17. a lead screw; 18. a cylindrical gasket; 19. a spherical washer; 20. a dial scale; 21. pressing down the nut; 22. an inclination angle adjusting gear; 23. rolling; 24. a bearing seat; 25. a speed reducer; 26. a servo motor; 27. a rotating shaft with a dial; 28. a bearing; 29. a rack nut; 30. a tilt angle adjusting shaft; a is a mounting hole of the screw-down device; and B is a rotating shaft mounting hole.
Detailed Description
Specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that technical features or combinations of technical features described in the following embodiments should not be considered as being isolated, and they may be combined with each other to achieve better technical effects.
As shown in fig. 1-7, the embodiment of the present invention provides a double-spindle cantilever type skew rolling mill, which includes a base unit, a material guiding unit, a frame unit (left frame, right frame), a gear synchronizing mechanism (left gear, right gear), a cantilever type roller system (left roller system, right roller system), a radial pressing mechanism, and an inclination angle adjusting mechanism (left inclination angle adjusting mechanism, right inclination angle adjusting mechanism);
as shown in fig. 1 and 2, the double-spindle cantilever type skew rolling mill is integrally mounted on a base unit through the double spindles, and the base unit comprises a base, a stand spindle seat and a stand spindle cover; the frame rotating shaft seat is fixed above the base, and the frame rotating shaft cover is arranged above the rotating shaft seat; the frame rotating shaft seat and the frame rotating shaft cover are upper and lower split seats of the frame rotating shaft, and frame rotating shaft mounting holes are machined by taking the blank axis as a symmetry center; the rotating shaft cover is fixedly connected with the rotating shaft seat through bolts. Preferably, a drainage floor drain can be arranged on the base.
As shown in fig. 8, the material guiding unit includes a material guiding device, a guide plate seat, and a guide plate. The material guide device is connected with the rotating shaft cover of the frame through a bolt, and the material guide device can prevent the shaking and swinging of the blank in the rolling process; the guide plate is fixed on a guide plate seat through a bolt, the guide plate seat is fixed on a frame rotating shaft cover in a welding mode, and the guide plate and the roll pass together form a deformation space of a rolled piece.
As shown in fig. 3, the gear synchronizing mechanism includes two left gears and two right gears, which are respectively connected to the left frame and the right frame through bolts, and a key is disposed between the frames and the gears for bearing torque.
As shown in fig. 1 and 4, the left frame and the right frame have the same geometric dimension, the two frames are mounted on the base through the rotating shafts of the two frames and symmetrically distributed by taking the vertical rolling center line as a symmetric axis, and the frames are of an L-shaped double-flange structure, so that the good strength and rigidity of the frames are ensured.
As shown in fig. 1, 4 and 5, the cantilever type roller system comprises a left roller system and a right roller system; all comprise an inclination angle adjusting gear, a roller, a bearing seat, a speed reducer and a servo motor. The two roller systems have the same installation position of parts, the roller systems are tightly attached to the frame through back tensioning bolts, and the inclination angle adjusting gear is connected with the bearing block through bolts. The servo motor and the speed reducer are arranged on the bearing block and can drive the roller to rotate.
As shown in fig. 6, the radial pressing mechanism is connected to the frame via a cylindrical washer, the small scale is connected to the pressing nut via a bolt, and the large scale is fixed to the cylindrical washer via a bolt. When the screw down nut is rotated, the screw down nut shortens or enlarges the distance between the two frames through the action of the cylindrical washer, thereby completing the adjustment of the distance between the two roller systems, and the change value of the distance between the frames can be read from the first dial.
As shown in fig. 7, the reclining mechanism includes a second dial, two bearings, a rack nut, and a reclining rotating shaft. The inclination angle adjusting mechanism is contacted with the rack through two bearings, when the rotating shaft is rotated, the rotating shaft only rotates without axial feeding due to the action of the bearings, further the rotating shaft threads drive the rack nut to move along the axis direction, and further the inclination angle adjusting gear is driven to rotate, so that the inclination angle adjustment of the roll system is completed, and the rotating shaft dial can read the real-time inclination angle of the roll system.
The utility model discloses a theory of operation does:
the roller is driven by a servo motor to rotate, the roller system adopts a cantilever type structure, and only a single side is provided with a bearing, so that the roller system is simplified, and the aim of quickly changing the roller is fulfilled. The roll system inclination angle adjustment is realized through an inclination angle adjusting mechanism below the rolling mill, the action line of the inclination angle adjusting mechanism is longer, and the high-precision angle adjustment can be realized. The radial pressing mechanism and the gear synchronizing mechanism can ensure that the two racks are synchronously centered and pressed down, and the position of a vertical rolling center line is fixed. The double-rotating-shaft type rack structure can shorten the distance between the lower rotating shaft and the rolling center line, thereby reducing the position fluctuation of the horizontal rolling center line caused by the adjustment of the rack distance. The guide auxiliary device can prevent the blanks from swinging and shaking greatly in the rolling process, and the blanks can be guaranteed to move forward stably. By adjusting the distance between the two roller systems, the rolling of steel balls with different diameters can be realized. The utility model has the advantages of the roll change is convenient, the installation is adjusted simply, the regulation precision is high, vertical central line does not squint, can be used to the mass production of minor diameter steel ball.
While several embodiments of the present invention have been presented herein, it will be appreciated by those skilled in the art that changes can be made to the embodiments herein without departing from the spirit of the invention. The above-described embodiments are merely exemplary and should not be taken as limiting the scope of the invention.
Claims (10)
1. A double-rotating-shaft cantilever type skew rolling mill is characterized by comprising:
a base unit for mounting the skew rolling mill;
the frame unit comprises a left frame and a right frame which are fixedly arranged on the base unit through a left frame rotating shaft and a right frame rotating shaft respectively, and the left frame rotating shaft and the right frame rotating shaft are arranged in an axisymmetric mode by taking the blank axis as an axis; the left frame and the right frame can respectively rotate around a left frame rotating shaft and a right frame rotating shaft;
the cantilever type roller system for rolling the blank comprises 2 rollers which are respectively and fixedly arranged on a left rack and a right rack;
the gear synchronizing mechanism used for enabling the left rack and the right rack to synchronously and reversely rotate comprises 2 synchronizing gears which are respectively fixed at the bottoms of the left rack and the right rack;
the radial pressing mechanism is used for adjusting the roll spacing of the 2 rollers and is arranged at the upper parts of the left stand and the right stand;
the inclination angle adjusting mechanism is used for adjusting the inclination angle between the axis of the roller and the axis of the blank and is arranged at the lower parts of the left frame and the right frame;
and the material guide unit is fixedly arranged on the base unit and is used for preventing the blanks from swinging.
2. The dual spindle cantilever skew rolling mill of claim 1 wherein said cantilevered roll train comprises a left roll train and a right roll train; the left roller system and the right roller system are respectively provided with a bearing on one side, and the other side is used for fixing the roller by using a locking nut.
3. The dual spindle cantilever skew rolling mill of claim 2 in which said left and right roll trains each include a pitch gear, a roll, a chock, a reducer, a servo motor;
the rollers are arranged on the roller shafts; the servo motor is connected with the speed reducer through a bolt, the speed reducer is arranged on the bearing block through a bolt, and an output shaft of the speed reducer is connected with the roll shaft through a key to drive the shaft system to rotate; the inclination angle adjusting gear is connected with the bearing seat through a bolt; the bearing seat is fixed with the left frame/the right frame through a back tensioning bolt.
4. The dual spindle cantilever skew rolling mill of claim 1 in which said gear synchronizing mechanism includes a left gear, a right gear; the left gear is arranged at the end part of the rotating shaft of the left frame and is concentric with the rotating shaft of the left frame; the right gear is arranged at the end part of the rotating shaft of the right frame and is concentric with the rotating shaft of the right frame; the left gear is meshed with the right gear, so that the left frame and the right frame respectively rotate around the left rotating shaft of the frame and the right rotating shaft of the frame in the same speed and opposite directions.
5. The dual spindle cantilever skew rolling mill of claim 1, wherein said radial depression mechanism comprises a lead screw, a depression nut, a first dial, a cylindrical washer, a spherical washer;
the lead screw is connected with the left rack and the right rack through a spherical gasket and a cylindrical gasket; the first dial is connected with the lead screw through a bolt;
when the screw-down nut is rotated, the screw-down nut shortens or enlarges the opening distance of the upper parts of the left frame and the right frame under the action of the cylindrical washer, and further the adjustment of the distance between the 2 rollers is realized.
6. The dual spindle cantilever skew rolling mill of claim 3, wherein said tilt adjustment mechanism comprises 2 sets of components, each set of components comprising a second dial, a bearing, a rack nut, a tilt adjustment spindle;
the inclination angle adjusting rotating shaft is arranged at the lower part of the left frame/the right frame through a bearing; the inclination angle adjusting rotating shaft is provided with rotating shaft threads; when the inclination angle adjusting rotating shaft rotates, the inclination angle adjusting rotating shaft only rotates without axial feeding due to the action of the bearing, the rotating shaft thread drives the rack nut to move along the axis direction, the inclination angle adjusting gear is driven to rotate, and the inclination angle adjustment of the roll axis relative to the blank axis is realized; the second dial is used for reading the size of the inclination angle in real time.
7. The dual spindle cantilever skew rolling mill of any one of claims 1-6, wherein said base unit comprises a base, a housing spindle mount, a housing spindle cover; the frame rotating shaft seat is fixed above the base, and the frame rotating shaft cover is arranged above the rotating shaft seat; the frame rotating shaft seat and the frame rotating shaft cover are vertically split seats of the frame rotating shaft, and frame rotating shaft mounting holes are machined by taking the blank axis as a symmetry center.
8. The double-spindle cantilever skew rolling mill of claim 7, wherein a floor drain is provided on said base.
9. The double-spindle cantilever skew rolling mill of any one of claims 1 to 6, wherein the guide unit comprises a guide plate seat, a guide device, a guide plate;
the guide plate seat is fixed on the frame rotating shaft cover in a welding mode, the guide device is connected with the frame rotating shaft cover through a bolt, and the guide plate is fixed on the guide plate seat through a bolt.
10. The dual-spindle cantilever type skew rolling mill of claim 1, wherein said left and right frames are both "L" shaped, and the frames are respectively provided with a frame spindle mounting hole, a tilt angle adjustment mechanism mounting hole, a back tension bolt mounting hole and a radial screw down mechanism mounting hole from bottom to top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934997.6U CN210475364U (en) | 2019-06-20 | 2019-06-20 | Double-rotating-shaft cantilever type skew rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920934997.6U CN210475364U (en) | 2019-06-20 | 2019-06-20 | Double-rotating-shaft cantilever type skew rolling mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210475364U true CN210475364U (en) | 2020-05-08 |
Family
ID=70514290
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920934997.6U Expired - Fee Related CN210475364U (en) | 2019-06-20 | 2019-06-20 | Double-rotating-shaft cantilever type skew rolling mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210475364U (en) |
-
2019
- 2019-06-20 CN CN201920934997.6U patent/CN210475364U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200508 Termination date: 20210620 |