An easy-to-replace tapered roller for a ring rolling mill

Abstract

The present invention relates to a conical roller of a ring rolling machine which is easy to replace and belongs to the technical field of replacing conical rollers of ring rolling machines; the conical roller comprises a conical roller, a connecting shaft and a rotating shaft are fixedly arranged in sequence at the rear end of the conical roller, an arc-shaped connecting plate and a front sleeve which are distributed up and down are rotatably arranged on the outer side of the connecting shaft through a connecting component, the front sleeve and the arc-shaped connecting plate are spliced ​​into an outer shell of a cylindrical structure, a connecting cylinder is fixedly arranged on the upper end of the arc-shaped connecting plate, and the connecting cylinder is connected to an electric push rod; a wear-resistant layer is fixedly sleeved on the outer side of the conical roller, the conical roller and the wear-resistant layer are connected to each other through a limiting component, and the limiting component comprises a limiting rod, a plurality of inner limiting grooves are arranged on the outer side of the conical roller, a plurality of outer limiting grooves are arranged on the inner side of the wear-resistant layer, the number of the inner limiting grooves is equal to that of the outer limiting grooves and they correspond one to one, and the limiting rods are inserted into the corresponding inner limiting grooves and outer limiting grooves; the problem of inconvenient replacement of the conical roller of the ring rolling machine is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of replacing tapered rollers of ring rolling machines, and in particular relates to a tapered roller of a ring rolling machine which is easy to replace. Background Art

[0002] Large annular flanges are an indispensable and important component in the connection of wind turbine towers. They undertake the important task of connecting various tower sections and ensuring the stable operation of wind power generation equipment. This type of flange is usually made of high-strength steel, has good corrosion resistance and load-bearing capacity, and ensures the firmness and stability of the wind turbine tower structure. The production process of wind turbine flanges is: bar unloading (large material) to sawing blanks (small material) to heating, upsetting and punching, then heating and ring rolling, and finally heat treatment, turning and drilling. In the ring rolling process, the original process has the following defects: First, stress concentration is easy to form at the root of the rectangular key sleeve, and fatigue fracture; second, the rectangular key is also easy to roll and deform, which is difficult to repair; third, the position of the key and keyway is difficult to determine; fourth, as the wear-resistant layer grows over time, the wear-resistant layer will not rotate synchronously with the cone roller, which is easy to consume one side of the wear-resistant layer, thereby affecting the ring rolling effect; therefore, improvements need to be made based on the above problems. Summary of the invention

[0003] The invention overcomes the shortcomings of the prior art and provides a conical roller of a ring rolling machine which is easy to replace, thereby solving the problem that the conical roller of the current ring rolling machine is inconvenient to replace.

[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions.

[0005] A conical roller of a ring rolling machine which is easy to replace comprises a conical roller, a connecting shaft and a rotating shaft are fixedly arranged in sequence at the rear end of the conical roller, an arc-shaped connecting plate and a front sleeve which are distributed up and down are rotatably arranged on the outer side of the connecting shaft through a connecting component, the front sleeve and the arc-shaped connecting plate are spliced ​​into an outer shell of a cylindrical structure, a connecting cylinder is fixedly arranged on the upper end of the arc-shaped connecting plate, and the connecting cylinder is connected to an electric push rod; a wear-resistant layer is fixedly sleeved on the outer side of the conical roller, the conical roller and the wear-resistant layer are connected to each other through a limiting component, the limiting component comprises a limiting rod, a plurality of inner limiting grooves are arranged on the outer side of the conical roller, a plurality of outer limiting grooves are arranged on the inner side of the wear-resistant layer, the number of the inner limiting grooves is equal to that of the outer limiting grooves and they correspond one to one, and the limiting rods are inserted into the corresponding inner limiting grooves and outer limiting grooves.

[0006] Furthermore, the diameter of the rotating shaft is smaller than the diameter of the connecting shaft; a front flange and a rear spline block are fixedly sleeved on the outer side of the middle portion of the rotating shaft, and an external thread is provided on the front end of the outer side surface of the rotating shaft.

[0007] Furthermore, the front sleeve and the arc-shaped connecting plate are both semi-cylindrical structures, and a docking plate is fixedly provided at the two docking ends of the front sleeve and the arc-shaped connecting plate. The two docking plates on the front sleeve are respectively in contact with the two docking plates on the arc-shaped connecting plate to achieve docking; the two docking plates connected to each other are fixedly connected by docking bolts and docking nuts, thereby fixing the front sleeve and the arc-shaped connecting plate, and then the front sleeve and the arc-shaped connecting plate are spliced ​​into a complete outer shell of a cylindrical structure.

[0008] Furthermore, the connecting assembly includes a front cover, a rear cover, a first bearing, and a first round nut; a plurality of first bearings are arranged in sequence between the inner wall of the outer shell and the outer wall of the connecting shaft, a circular ring-shaped front cover is fixedly provided on the front end surface of the front sleeve, the front cover is rotatably sleeved on the outer side of the connecting shaft, a circular ring-shaped rear cover is provided on the rear side of the front sleeve, the rear cover is sleeved on the outer side of the connecting shaft, a mounting hole is radially provided on the rear cover, and a mounting hole is also radially provided on the connecting shaft, and the mounting hole on the rear cover and the mounting hole on the connecting shaft are plugged and installed with the same key.

[0009] Furthermore, a first round nut is threadedly connected to the external thread at the front end of the outer side surface of the rotating shaft, the first round nut is in contact with the rear end surface of the rear cover, and a first anti-loosening locking plate is arranged on the rear side of the first round nut, and the first anti-loosening locking plate is sleeved on the outer side of the rotating shaft.

[0010] Furthermore, the limit assembly also includes steel balls and a first spring; a row of equidistant installation grooves is provided on the inner bottom surface of the inner limit groove, a first spring is fixedly provided on the inner bottom surface of each installation groove, and a steel ball is fixedly provided on the outer end of the first spring, and the steel ball is located at the opening of the installation groove; a row of equidistant circular sliding grooves is provided on the end surface of the limit rod on one side close to the bottom surface of the inner limit groove, and when the limit rod is inserted into the inner limit groove and the outer limit groove, a row of steel balls is clamped in the row of circular sliding grooves of the limit rod under the elastic force of the first spring; a threaded groove is provided on the front end surface of the conical roller, and a bolt through hole is provided at the front end of the wear-resistant layer, and the positioning bolt passes through the bolt through hole at the front end of the wear-resistant layer and is connected with the threaded groove at the front end of the conical roller, thereby fixing the conical roller and the wear-resistant layer.

[0011] Furthermore, a transmission assembly is provided on the outer side of the rotating shaft, and the transmission assembly includes a spline sleeve; the spline sleeve is a cylindrical structure, a spline opening is provided on the front end face of the spline sleeve, and a spline groove is provided on the rear end face of the spline sleeve; the spline opening is sleeved on the outer side of the rear end of the rotating shaft, the front end face of the spline sleeve is in contact with the rear end face of the flange, and the spline opening of the spline sleeve is clamped with the spline block; a circle of circular array threaded holes is provided on the front end face of the spline sleeve, and a circle of fixing bolts pass through the through holes on the flange and are screwed with the threaded holes on the front end face of the spline sleeve, thereby fixing the spline sleeve to the rotating shaft.

[0012] Furthermore, the outer cylindrical surface of the spline sleeve includes a large diameter section on the front side and a small diameter section on the rear side, a front sleeve and a rear sleeve are sleeved on the outer side of the small diameter section, and the rear end of the front sleeve is fixedly connected to the front end of the rear sleeve by a docking flange; a second bearing is arranged between the inner wall of the front sleeve and the outer wall of the small diameter section, a third bearing is arranged between the inner wall of the rear sleeve and the outer wall of the small diameter section, a stop sleeve is sleeved on the outer side of the small diameter section between the second bearing and the third bearing, a second round nut is screwed on the rear end of the outer side surface of the small diameter section, and the second round nut is in contact with the rear end of the inner ring of the third bearing; a second anti-loosening locking plate is arranged on the rear side of the second round nut, and the second anti-loosening locking plate is sleeved on the outer side of the small diameter section of the spline sleeve; an annular sealing ring is fixed at the front end opening of the front sleeve by a circle of screws.

[0013] Furthermore, the connecting tube is a vertically arranged cylindrical structure, the upper and lower ends of the connecting tube remain open, the lower end of the connecting tube is fixedly connected to the upper end of the outer surface of the arc-shaped connecting plate; the upper end opening of the connecting tube is fixedly connected to the piston rod of the electric push rod through a docking flange.

[0014] Furthermore, a semicircular action groove is provided inside the arc-shaped connecting plate, the action groove extends to the inside of the docking plates at both ends of the arc-shaped connecting plate, and the docking bolt is connected to the action groove; the upper end of the action groove remains open, and the upper end opening of the action groove is connected to the lower end opening of the connecting tube; a pad is slidably provided inside the upper end opening of the connecting tube, and a horizontal supporting plate is fixedly provided at the lower end opening of the connecting tube, and a second spring is provided between the pad and the supporting plate; a connecting rod is hinged at both ends of the lower end surface of the pad, and a push block is slidably provided inside the action groove inside the two docking plates; an iron sheet is respectively provided between the push block and the connecting rod on the same side, the lower end of the iron sheet is connected to the push block, and the upper end of the iron sheet is connected to the lower end of the connecting rod.

[0015] The beneficial effects of the present invention compared with the prior art are as follows:

[0016] The present invention facilitates the clamping of the wear-resistant layer and the tapered roller through the cooperation of the limit rod and the inner limit groove and the outer limit groove, thereby improving the fit between the wear-resistant layer and the tapered roller and further improving the ring rolling effect; through the cooperation of the connecting shaft and the rotating shaft, it is convenient to quickly replace the tapered roller, reduce the forging time and improve the production efficiency; through the cooperation of the spline sleeve and the spline groove, it is convenient to quickly connect the external drive and thus improve the ring rolling efficiency; through the cooperation of the tapered roller and the wear-resistant layer, it is convenient to quickly replace the wear-resistant layer and reduce the damage of the tapered roller and thus increase the service life of the tapered roller; through the cooperation of the iron sheet and the push block, it is convenient to reinforce the connection effect between the electric push rod and the ring rolling machine and thus improve the ring rolling efficiency; the device quickly replaces the tapered roller, reduces the forging time, increases the service life of the tapered roller and the tapered sleeve and improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described in detail below in conjunction with the accompanying drawings:

[0018] Figure 1 It is a three-dimensional schematic diagram of the present invention as a whole Figure 1 ;

[0019] Figure 2 It is a three-dimensional schematic diagram of the present invention as a whole Figure 2 ;

[0020] Figure 3 It is a three-dimensional schematic diagram of the present invention after removing the transmission component;

[0021] Figure 4 yes Figure 3 Schematic diagram of the structure after half sectioning;

[0022] Figure 5 It is a schematic diagram of the connection between the tapered roller, the connecting shaft and the rotating shaft;

[0023] Figure 6 It is a schematic diagram of the connection between the tapered roller and the wear-resistant layer;

[0024] Figure 7 It is a schematic diagram of the structure of the limit rod;

[0025] Figure 8 It is a three-dimensional schematic diagram of the transmission assembly;

[0026] Fig. 9 yes Figure 8 Schematic diagram of the structure after half sectioning;

[0027] Fig.10 It is a schematic diagram of the internal structure of the connecting tube;

[0028] Fig.11 yes Figure 5 A local enlarged schematic diagram of the middle A;

[0029] Among them, 1 is a tapered roller; 2 is a wear-resistant layer; 3 is a connecting shaft; 4 is a rotating shaft; 5 is a spline block; 6 is a flange; 7 is a first bearing; 8 is a front sleeve; 9 is a front cover; 10 is a rear cover; 11 is a first round nut; 12 is a first anti-loosening locking plate; 13 is an arc-shaped connecting plate; 14 is a connecting tube; 15 is a key; 16 is an inner limit groove; 17 is a limit rod; 18 is a steel ball; 19 is a first spring; 20 is a circular slide groove; 21 is a positioning bolt; 22 is a spline sleeve; 23 is a second bearing; 24 is a front sleeve; 25 is a sealing ring; 26 is a stopper sleeve; 27 is a third bearing; 28 is a rear sleeve; 29 is a second round nut; 30 is a second anti-loosening locking plate; 31 is a spline groove; 32 is a spline mouth; 33 is a pad; 34 is a support plate; 35 is a second spring; 36 is a connecting rod; 37 is an iron sheet; 38 is a push block. DETAILED DESCRIPTION

[0030] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer, the present invention is further described in detail in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. The technical solutions of the present invention are described in detail below in conjunction with the embodiments and the accompanying drawings, but the scope of protection is not limited thereto.

[0031] like Figure 1 As shown in FIG. 11, the present invention provides a conical roller of a ring rolling machine which is easy to replace, comprising a conical roller 1, a connecting shaft 3 and a rotating shaft 4 are fixedly arranged in sequence at the rear end of the conical roller 1, an arc-shaped connecting plate 13 and a front sleeve 8 which are distributed up and down are rotatably arranged on the outer side of the connecting shaft 3 through a connecting assembly, the front sleeve 8 and the arc-shaped connecting plate 13 are spliced ​​into an outer shell of a cylindrical structure, a connecting cylinder 14 is fixedly arranged on the upper end of the arc-shaped connecting plate 13, and the connecting cylinder 14 is connected to an electric push rod; a wear-resistant layer 2 is fixedly sleeved on the outer side of the conical roller 1, the conical roller 1 and the wear-resistant layer 2 are connected to each other through a limiting assembly, the limiting assembly comprises a limiting rod 17, a plurality of inner limiting grooves 16 are arranged on the outer side surface of the conical roller 1, a plurality of outer limiting grooves are arranged on the inner side surface of the wear-resistant layer 2, the number of the inner limiting grooves 16 and the outer limiting grooves are equal and correspond one to one, and the limiting rods 17 are inserted into the corresponding inner limiting grooves 16 and outer limiting grooves.

[0032] The tapered roller 1 is a tapered structure that is thin at the front and thick at the back. The front end of the tapered roller 1 is tilted downward, so that the axis of the tapered roller 1 maintains an angle with the horizontal plane.

[0033] The wear-resistant layer 2 is a conical structure with a thin front and a thick back, and the inner wall of the wear-resistant layer 2 is in contact with the outer wall of the conical roller 1.

[0034] The connecting shaft 3 and the rotating shaft 4 are both cylindrical structures. The connecting shaft 3 and the rotating shaft 4 keep coincident with the axis of the tapered roller 1, and the diameter of the rotating shaft 4 is smaller than the diameter of the connecting shaft 3. A flange 6 and a spline block 5 are fixedly sleeved on the outer side of the middle part of the rotating shaft 4. The rear end face of the flange 6 is connected to the front end face of the spline block 5. The spline block 5 is a regular hexagonal main structure. A circle of circular array reinforcement blocks are fixedly arranged on the front end face of the flange 6, and the reinforcement blocks are fixedly connected to the outer end face of the rotating shaft 4. An external thread is arranged on the front end of the outer side face of the rotating shaft 4.

[0035] The connecting assembly includes a front cover 9 , a rear cover 10 , a first bearing 7 , and a first round nut 11 .

[0036] The front sleeve 8 and the arc-shaped connecting plate 13 are both semi-cylindrical structures, and a docking plate is fixedly arranged at the two butt ends of the front sleeve 8 and the arc-shaped connecting plate 13, and the docking plate is arranged along the radial direction of the front sleeve 8 and the arc-shaped connecting plate 13. The two docking plates on the front sleeve 8 are respectively in contact with the two docking plates on the arc-shaped connecting plate 13 to achieve docking. Bolt holes are arranged on each docking plate, and the bolt holes on the docking plate of the front sleeve 8 correspond to the bolt holes on the docking plate of the arc-shaped connecting plate 13. The two corresponding bolt holes are connected by docking bolts and docking nuts, so that the front sleeve 8 is fixedly connected to the arc-shaped connecting plate 13, and the front sleeve 8 and the arc-shaped connecting plate 13 are spliced ​​into a complete outer shell of a cylindrical structure.

[0037] A plurality of first bearings 7 arranged in sequence are provided between the inner wall of the outer shell and the outer wall of the connecting shaft 3 , and the first bearings 7 are used to realize the mutual rotation connection between the connecting shaft 3 and the outer shell.

[0038] A circular front cover 9 is fixedly provided on the front end face of the front sleeve 8, the axis of the front cover 9 coincides with the axis of the front sleeve 8, the front cover 9 is rotatably sleeved on the outside of the connecting shaft 3, and the front cover 9 is clamped with the outer ring of the first bearing 7 on the front side, and the inner ring of the first bearing 7 on the front side is clamped with the front end of the outer side surface of the connecting shaft 3.

[0039] A circular back cover 10 is arranged on the rear side of the front sleeve 8. The back cover 10 is sleeved on the outside of the connecting shaft 3 and coincides with the axis of the connecting shaft 3. A mounting hole is arranged radially on the back cover 10, and a mounting hole is also arranged radially on the connecting shaft 3. The mounting holes on the back cover 10 and the mounting holes on the connecting shaft 3 are plugged and installed with the same key 15, and the synchronous rotation of the back cover 10 and the connecting shaft 3 is realized by the key 15. The inner ring of the first bearing 7 on the rear side is snap-fitted with the front end surface of the back cover 10. The outer edge of the back cover 10 extends to the rear end opening of the outer shell.

[0040] A first round nut 11 is threadedly connected to the external thread at the front end of the outer side surface of the rotating shaft 4, and the first round nut 11 contacts the rear end surface of the rear cover 10, thereby fixing the rear cover 10. A first anti-loosening locking plate 12 is arranged at the rear side of the first round nut 11, and the first anti-loosening locking plate 12 is sleeved on the outer side of the rotating shaft 4, and the first anti-loosening locking plate 12 prevents the first round nut 11 from loosening.

[0041] The limiting assembly further includes a steel ball 18 and a first spring 19 .

[0042] The outer limiting groove and the axis of the wear-resistant layer 2 are located in the same plane, and the rear end of the outer limiting groove extends to the rear end surface of the wear-resistant layer 2; the inner limiting groove 16 and the axis of the tapered roller 1 are located in the same plane, and the rear end of the inner limiting groove 16 extends to the rear end surface of the tapered roller 1.

[0043] A row of equidistant mounting grooves is provided on the inner bottom surface of the inner limit groove 16, and a first spring 19 is fixedly provided on the inner bottom surface of each mounting groove. A steel ball 18 is fixedly provided on the outer end of the first spring 19, and the steel ball 18 is located at the opening of the mounting groove. A row of equidistant circular grooves 20 is provided on the end surface of the limit rod 17 close to the bottom surface of the inner limit groove 16, and the spacing of a row of circular grooves 20 is kept equal to the spacing of a row of mounting grooves. When the limit rod 17 is inserted into the inner limit groove 16 and the outer limit groove, a row of steel balls 18 is clamped in a row of circular grooves 20 of the limit rod 17 under the elastic force of the first spring 19, thereby preventing the limit rod 17 from falling out, thereby realizing the mutual docking of the tapered roller 1 and the wear-resistant layer 2.

[0044] A thread groove is provided on the front end surface of the tapered roller 1, and a bolt through hole is provided on the front end of the wear-resistant layer 2. The positioning bolt 21 passes through the bolt through hole at the front end of the wear-resistant layer 2 and is connected to the thread groove at the front end of the tapered roller 1, thereby fixing the tapered roller 1 to the wear-resistant layer 2.

[0045] A transmission assembly is also arranged on the outer side of the rotating shaft 4, and the transmission assembly includes a spline sleeve 22, a second bearing 23, a front seal 24, a sealing ring 25, a stopper sleeve 26, a third bearing 27, a rear seal 28, a second round nut 29, and a second anti-loosening locking plate 30.

[0046] The spline sleeve 22 is a cylindrical structure, and a spline opening 32 is provided on the front end face of the spline sleeve 22, and a spline groove 31 is provided on the rear end face of the spline sleeve 22. The spline opening 32 is a regular hexagonal groove structure, and the spline opening 32 of the spline sleeve 22 is sleeved on the rear end outer side of the rotating shaft 4, the front end face of the spline sleeve 22 is in contact with the rear end face of the flange 6, and the spline opening 32 of the spline sleeve 22 is engaged with the spline block 5, thereby realizing the synchronous rotation of the rotating shaft 4 and the spline sleeve 22.

[0047] A circle of threaded holes in a circular array is provided on the front end face of the spline sleeve 22. The threaded holes on the spline sleeve 22 correspond one-to-one to the through holes on the flange 6. A circle of fixing bolts pass through the through holes on the flange 6 and are screwed into the threaded holes on the front end face of the spline sleeve 22, thereby fixing the spline sleeve 22 to the rotating shaft 4.

[0048] The outer cylindrical surface of the spline sleeve 22 includes a large diameter section at the front side and a small diameter section at the rear side. A front sleeve 24 and a rear sleeve 28 are sleeved on the outer side of the small diameter section. The rear end of the front sleeve 24 and the front end of the rear sleeve 28 are fixedly connected through a docking flange. A second bearing 23 is arranged between the inner wall of the front sleeve 24 and the outer wall of the small diameter section. The front end of the inner ring of the second bearing 23 is clamped with the rear end surface of the large diameter section, and the rear end of the outer end of the second bearing 23 is clamped with the rear end of the inner wall of the front sleeve 24. A third bearing 27 is arranged between the inner wall of the rear sleeve 28 and the outer wall of the small diameter section. The rear end of the outer ring of the third bearing 27 is clamped with the rear end of the inner wall of the rear sleeve 28. A stopper sleeve 26 is sleeved on the outer side of the small diameter section between the second bearing 23 and the third bearing 27. The front and rear ends of the stopper sleeve 26 are in contact with the rear end of the inner ring of the second bearing 23 and the front end of the inner ring of the third bearing 27, respectively. An external thread is provided at the rear end of the outer side surface of the small diameter section, and a second round nut 29 is screwed on the external thread on the outer side of the small diameter section, and the second round nut 29 contacts the rear end of the inner ring of the third bearing 27. A second anti-loosening locking plate 30 is provided on the rear side of the second round nut 29, and the second anti-loosening locking plate 30 is sleeved on the outer side of the small diameter section of the spline sleeve 22, and the second anti-loosening locking plate 30 is used to prevent the second round nut 29 from loosening. A circular sealing ring 25 is fixed at the front end opening of the front seal 24 by a circle of screws, and the front end opening of the front seal 24 is blocked by the sealing ring 25 to prevent impurities from entering the front seal 24 and the rear seal 28, so as to prevent the impurities from affecting the rotation of the second bearing 23 and the third bearing 27.

[0049] The connecting cylinder 14 is a vertically arranged cylindrical structure, with the upper and lower ends of the connecting cylinder 14 kept open, and the lower end of the connecting cylinder 14 is fixedly connected to the upper end of the outer surface of the arc-shaped connecting plate 13. The upper end opening of the connecting cylinder 14 is fixedly connected to the piston rod of the electric push rod through a docking flange, and the lifting and lowering of the connecting cylinder 14 is achieved by the extension and retraction of the electric push rod, thereby driving the lifting and lowering of the entire cone roller 1.

[0050] A semicircular action groove is arranged inside the arc-shaped connecting plate 13, and the action groove extends to the inside of the docking plates at both ends of the arc-shaped connecting plate 13, and the docking bolt is connected to the action groove; the upper end of the action groove remains open, and the upper end opening of the action groove is connected to the lower end opening of the connecting tube 14. A cushion block 33 is slidably arranged inside the upper end opening of the connecting tube 14, and a horizontal supporting plate 34 is fixedly arranged at the lower end opening of the connecting tube 14, and a second spring 35 is arranged between the cushion block 33 and the supporting plate 34. A connecting rod 36 is hinged at both ends of the lower end surface of the cushion block 33, and a push block 38 is slidably arranged inside the action groove inside the two docking plates. An iron sheet 37 is arranged between the push block 38 and the connecting rod 36 on the same side, and the lower end of the iron sheet 37 is connected to the push block 38, and the upper end of the iron sheet 37 is connected to the lower end of the connecting rod 36.

[0051] The present invention also provides a method for using a tapered roller of a ring rolling machine that is easy to replace, comprising the following steps:

[0052] Step one, first install the connecting shaft 3 on the rear end of the tapered roller 1, then fix the rear end of the connecting shaft 3 to the rotating shaft 4, and then install the spline block 5 and the flange 6 on the outer side of the rear end of the rotating shaft 4 in sequence; then sleeve the front cover 9 on the front end of the connecting shaft 3, and then sleeve a plurality of first bearings 7 on the outer side of the connecting shaft 3, and then sleeve the front sleeve 8 on the outer side of the first bearing 7, and then install the rear cover 10 on the rear end of the front sleeve 8, and then abut the first round nut 11 with the rear cover 10, and then fix the first round nut 11 to the rotating shaft 4 through the first locking plate, after installing the connecting assembly on the connecting shaft 3, install the arc-shaped connecting plate 13 on the upper end of the front sleeve 8, so as to fix the connecting cylinder 14 to the front sleeve 8, and then connect the connecting cylinder 14 to the electric push rod, and control the lifting and lowering of the tapered roller 1 by the electric push rod.

[0053] Step two, after the connecting assembly is installed, the wear-resistant layer 2 is sleeved on the outer surface of the tapered roller 1, and the wear-resistant layer 2 and the tapered roller 1 are aligned by the inner limit groove 16 corresponding to the outer limit groove, and then the limit rod 17 is pushed into the inner limit groove 16 and the outer limit groove. When the limit rod 17 is pushed into the inner limit groove 16 and the outer limit groove, the first spring 19 will switch back and forth between the relaxed state and the compressed state as the limit rod 17 is pushed forward. When the steel ball 18 is placed in the circular slide groove 20, the first spring 19 is in a relaxed state, and then the limit rod 17 is clamped, thereby clamping the wear-resistant layer 2 and the tapered roller 1, and then the wear-resistant layer 2 and the tapered roller 1 are connected by the positioning bolt 21.

[0054] Step three, after the limit assembly is connected, the spline sleeve 22 is sleeved on the rotating shaft 4, and the spline sleeve 22 is clamped on the rotating shaft 4 through the spline block 5 and the spline opening 32 opened on the spline sleeve 22, and then the second bearing 23, the stop sleeve 26 and the third bearing 27 are sleeved on the spline sleeve 22, and then the front cover 24 and the rear cover 28 are sleeved on the second bearing 23 and the third bearing 27, and then the second round nut 29 and the second locking plate are installed at the rear end of the spline sleeve 22.

[0055] Step 4: After the transmission assembly is installed, the electric push rod is connected to the connecting tube 14. When the electric push rod is connected to the connecting tube 14, the pad 33 is pushed downward, thereby pushing the connecting rod 36 downward. At this time, the second spring 35 is in a compressed state. When the connecting rod 36 moves downward, the iron sheet 37 is pushed outward, and then the push block 38 is pushed, so that the docking bolts used to connect the arc-shaped connecting plate 13 and the front sleeve 8 are clamped, thereby reinforcing the connection effect of the electric push rod and the ring rolling machine. Then the drive shaft is clamped with the spline groove 31, and the drive is started to control the rotation of the spline sleeve 22. The rotation of the rotating shaft 4 is controlled by the mutual clamping of the spline mouth 32 and the spline block 5, and then the rotation of the connecting shaft 3 is controlled. The connecting shaft 3 is connected to the cone roller 1, thereby controlling the rotation of the cone roller 1, and then controlling the rotation of the wear-resistant layer 2, so as to roll the ring. When the wear-resistant layer 2 needs to be replaced, the positioning bolt 21 is removed, so that the wear-resistant layer 2 is removed for replacement, which is convenient for the next ring rolling operation.

[0056] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A conical roller of a ring rolling machine which is easy to replace, characterized in that: The invention comprises a conical roller (1), a connecting shaft (3) and a rotating shaft (4) are fixedly arranged in sequence at the rear end of the conical roller (1), an arc-shaped connecting plate (13) and a front sleeve (8) are rotatably arranged on the outer side of the connecting shaft (3) through a connecting assembly, the front sleeve (8) and the conical connecting plate (13) are spliced ​​into an outer shell of a cylindrical structure, a connecting cylinder (14) is fixedly arranged at the upper end of the conical connecting plate (13), and the connecting cylinder (14) is connected to an electric push rod; ) is fixedly sleeved on the outside with a wear-resistant layer (2), the tapered roller (1) and the wear-resistant layer (2) are connected to each other via a limiting assembly, the limiting assembly comprises a limiting rod (17), the outer side surface of the tapered roller (1) is provided with a plurality of inner limiting grooves (16), the inner side surface of the wear-resistant layer (2) is provided with a plurality of outer limiting grooves, the number of the inner limiting grooves (16) and the number of the outer limiting grooves are equal and correspond to each other, and the limiting rods (17) are inserted into the corresponding inner limiting grooves (16) and outer limiting grooves; The front sleeve (8) and the arc-shaped connecting plate (13) are both semi-cylindrical structures, and a docking plate is fixedly provided at both docking ends of the front sleeve (8) and the arc-shaped connecting plate (13), and the two docking plates on the front sleeve (8) and the two docking plates on the arc-shaped connecting plate (13) are respectively in contact with each other to achieve docking; The two butt-jointed plates are fixedly connected by butt bolts and butt nuts, thereby fixing the front sleeve (8) and the arc-shaped connecting plate (13) so that the front sleeve (8) and the arc-shaped connecting plate (13) are spliced ​​into an outer shell of a complete cylindrical structure; The connection assembly comprises a front cover (9), a rear cover (10), a first bearing (7), and a first round nut (11); a plurality of first bearings (7) are arranged in sequence between the inner wall of the outer shell and the outer wall of the connecting shaft (3); a circular ring-shaped front cover (9) is fixedly arranged on the front end surface of the front sleeve (8); the front cover (9) is rotatably sleeved on the outer side of the connecting shaft (3); a circular ring-shaped rear cover (10) is arranged on the rear side of the front sleeve (8); the rear cover (10) is sleeved on the outer side of the connecting shaft (3); a mounting hole is radially arranged on the rear cover (10); a mounting hole is also radially arranged on the connecting shaft (3); the mounting hole on the rear cover (10) and the mounting hole on the connecting shaft (3) are internally plugged and installed with the same key (15); The limiting assembly further comprises a steel ball (18) and a first spring (19); a row of equidistant mounting grooves are arranged on the inner bottom surface of the inner limiting groove (16); a first spring (19) is fixedly arranged on the inner bottom surface of each mounting groove; a steel ball (18) is fixedly arranged on the outer end of the first spring (19); the steel ball (18) is located at the opening of the mounting groove; a row of equidistant circular sliding grooves (20) are arranged on the end surface of one side of the limiting rod (17) close to the bottom surface of the inner limiting groove (16); when the limiting rod (1 7) When inserted into the inner limiting groove (16) and the outer limiting groove, a row of steel balls (18) are clamped in a row of circular grooves (20) of the limiting rod (17) under the elastic force of the first spring (19); a thread groove is provided on the front end surface of the tapered roller (1), and a bolt through hole is provided at the front end of the wear-resistant layer (2); the positioning bolt (21) passes through the bolt through hole at the front end of the wear-resistant layer (2) and is connected to the thread groove at the front end of the tapered roller (1), thereby fixing the tapered roller (1) and the wear-resistant layer (2); A transmission assembly is also arranged on the outside of the rotating shaft (4), the transmission assembly comprising a spline sleeve (22); the spline sleeve (22) is a cylindrical structure, a spline opening (32) is arranged on the front end surface of the spline sleeve (22), and a spline groove (31) is arranged on the rear end surface of the spline sleeve (22); the spline opening (32) is sleeved on the rear end outside of the rotating shaft (4), the front end surface of the spline sleeve (22) is in contact with the rear end surface of the flange (6), and the spline opening (32) of the spline sleeve (22) is engaged with the spline block (5); a circle of threaded holes in a circular array is arranged on the front end surface of the spline sleeve (22), and a circle of fixing bolts passes through the through holes on the flange (6) and is screwed to the threaded holes on the front end surface of the spline sleeve (22), thereby fixing the spline sleeve (22) to the rotating shaft (4); The connecting tube (14) is a vertically arranged cylindrical structure, the upper and lower ends of the connecting tube (14) remain open, the lower end of the connecting tube (14) is fixedly connected to the upper end of the outer surface of the arc-shaped connecting plate (13); the upper end opening of the connecting tube (14) is fixedly connected to the piston rod of the electric push rod via a docking flange; A semicircular action groove is provided inside the arc-shaped connecting plate (13), the action groove extends to the inside of the docking plates at both ends of the arc-shaped connecting plate (13), and the docking bolt is connected to the action groove; the upper end of the action groove remains open, and the upper end opening of the action groove is connected to the lower end opening of the connecting tube (14); a cushion block (33) is slidably provided inside the upper end opening of the connecting tube (14), a horizontal supporting plate (34) is fixedly provided at the lower end opening of the connecting tube (14), and a second spring (35) is provided between the cushion block (33) and the supporting plate (34); a connecting rod (36) is hinged at both ends of the lower end surface of the cushion block (33), and a push block (38) is slidably provided inside the action groove inside the two docking plates; an iron sheet (37) is provided between the push block (38) and the connecting rod (36) on the same side, the lower end of the iron sheet (37) is connected to the push block (38), and the upper end of the iron sheet (37) is connected to the lower end of the connecting rod (36).

2. The easily replaceable tapered roller of a ring rolling machine according to claim 1, characterized in that: The diameter of the rotating shaft (4) is smaller than the diameter of the connecting shaft (3); a front flange (6) and a rear spline block (5) are respectively fixedly sleeved on the outer side of the middle portion of the rotating shaft (4), and an external thread is provided at the front end of the outer side surface of the rotating shaft (4).

3. The easily replaceable tapered roller of a ring rolling machine according to claim 1, characterized in that: A first round nut (11) is threadedly connected to the external thread at the front end of the outer side surface of the rotating shaft (4), the first round nut (11) is in contact with the rear end surface of the rear cover (10), and a first anti-loosening locking plate (12) is arranged on the rear side of the first round nut (11), and the first anti-loosening locking plate (12) is sleeved on the outer side of the rotating shaft (4).

4. The easily replaceable tapered roller of a ring rolling machine according to claim 1, characterized in that: The outer cylindrical surface of the spline sleeve (22) comprises a large diameter section at the front side and a small diameter section at the rear side; a front seal (24) and a rear seal (28) are sleeved on the outside of the small diameter section; the rear end of the front seal (24) and the front end of the rear seal (28) are fixedly connected via a docking flange; a second bearing (23) is provided between the inner wall of the front seal (24) and the outer wall of the small diameter section; a third bearing (27) is provided between the inner wall of the rear seal (28) and the outer wall of the small diameter section; A stopper sleeve (26) is sleeved on the outside of the small diameter section between the bearings (27); a second round nut (29) is screwed on the rear end of the outer side surface of the small diameter section, and the second round nut (29) is in contact with the rear end of the inner ring of the third bearing (27); a second anti-loosening locking plate (30) is arranged on the rear side of the second round nut (29), and the second anti-loosening locking plate (30) is sleeved on the outside of the small diameter section of the spline sleeve (22); and a circular sealing ring (25) is fixedly arranged at the front end opening of the front sealing sleeve (24) by a circle of screws.

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