Rolling shaft of tearing machine

Abstract

The utility model provides a roller of a tearing machine, which relates to the technical field of machinery in the papermaking industry, is matched with a speed reducer for use, and comprises a roller, spiral fan blades, spiral cutting edges, protective cutting edges, pressure reducing cutting edges and mounting column heads, the spiral fan blades are fixedly mounted on the outer side of the roller, the spiral cutting edges are arranged among the spiral fan blades, and the protective cutting edges are fixedly mounted on the outer side of the roller. According to the wood chip tearing machine, the structure and the using angle of the spiral cutting edge are adjusted, the protection cutting edge and the pressure reduction cutting edge are additionally arranged, torsion borne by the rolling shaft and the spiral fan blades in the wood chip tearing process is reduced, the wood chip tearing efficiency is improved, and the wood chip tearing efficiency is improved. And meanwhile, the tearing effect is improved, the production safety of the wood chip tearing machine is improved, the repair cost is saved, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to papermaking industry machinery technical field, concretely is a kind of tearing machine roller. BACKGROUND

[0002] Tearing machine mainly tears wood chip into wood chip of about 5 millimeters in diameter in papermaking process, wood chip enters next process and is ground into paper pulp after passing through grate hole, the equipment is pushed to the front tearing by helical blade, 1000 kilowatt motor is driven and is reduced to 95 turns per minute by speed reducer, and helical blade provides greater torque, the torque sustained increase of helical blade front end, when wood chip gathers, even helical blade and roller are twisted and broken, existing roller and helical blade spare parts are rarely produced in domestic enterprise, and paper mill in the country relies on foreign manufacturers to import, and the selling price is 170-300 million yuan, the replacement cost is high, and roller and rotating blade are broken and fall and damage subsequent production equipment, produce security risk and delay production and cause greater economic loss.

[0003] Chinese utility model patent CN203409869U novel wood chip tearing machine mentions the structure of roller in tearing machine, by changing the shell diameter of wood chip tearing machine shell, the shaft diameter of helical shaft and the interval of helix, and changing the shrinkage space formed by the above three, to make the tearing degree of raw materials deeper, but the scheme does not consider the wear of equipment in wood chip tearing process and the problem that the roller is broken due to excessive torque in tearing process, and the breaking of roller and helical blade seriously affects production safety and easily causes greater economic loss.

[0004] To solve the above problems, a tearing machine roller is urgently needed to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model discloses a tearing machine roller, solve the phenomenon that tearing machine roller and helical blade in prior art are prone to breakage, improve production safety, and improve production efficiency.

[0006] To achieve the above object, the utility model discloses the following technical scheme: a tearing machine roller is used in cooperation with a speed reducer, comprising: a roller, a helical fan blade, a helical blade, a protective blade, a pressure reducing blade and a mounting stud, the helical fan blade is fixedly installed on the outer side of the roller, the helical fan blade is provided with a helical blade, the helical blade is fixedly connected with the roller, the tail end of the helical fan blade is provided with a pressure reducing blade, and the front end of the roller is fixedly connected with a mounting stud.

[0007] Preferably, the helical blade and the center line of the roller form an angle of 15°, the helical blade is provided with two threaded holes, the helical blade and the roller are fixedly connected by bolts, and the fixed bolts are secondarily fixed by glue.

[0008] Preferably, the tail end of the spiral fan blade is provided with a same-direction protective blade, the width of the spiral blade is greater than the width of the spiral fan blade, the front end of the protective blade is provided with a pressure reducing blade, the pressure reducing blade is arranged vertically to the protective blade, and the pressure reducing blade is spaced apart from the protective blade by 80 cm.

[0009] Preferably, the spiral blade, the protective blade and the pressure reducing blade each comprise a blade base and a cutting blade, and the cutting blade is of a rectangular structure.

[0010] Preferably, the cutting blade is of a curved structure, the front angle of the cutting blade is 30-60 degrees, the back angle is 60-90 degrees, and the spiral blade, the protective blade and the pressure reducing blade are all of a curved blade design.

[0011] Preferably, the pitch between the spiral blades of the roller gradually decreases from 395 cm to 378 cm from right to left.

[0012] Preferably, the mounting column head is of a conical body structure, the conical body is provided with a rectangular groove, the left side of the conical body is provided with a base, the right side of the conical body is provided with a mounting groove, the mounting groove is fixedly connected with a speed reducer bearing, the mounting groove is provided with a rectangular groove, the mounting groove is provided with a pressure bead, the outer side of the mounting groove is provided with a spare cap, and the outer side of the base is fixedly provided with a spare cap.

[0013] Preferably, the spiral blade and the pressure reducing blade are made of YG8 alloy, and the roller, the spiral fan blade and the mounting column head are made of OCr 18 Ni5Cn4Nb.

[0014] Beneficial effects

[0015] The utility model provides a kind of roller of tearing machine, compared with prior art has the following beneficial effects:

[0016] 1, the utility model increases protective blade and pressure reducing blade, reduce the stress generated by tearing wood piece in production process, thereby reduce the torsion that roller receives, save the use of power in tearing process, reduce production cost.

[0017] 2, the utility model is provided with spiral blade, and changes the installation angle of spiral blade and the curve angle of spiral blade, increases the use quantity of spiral blade at the tail end of roller, improves the effect of wood piece tearing, reduces the torsion that equipment receives in wood piece tearing process, increases tearing effect.

[0018] 3, prolongs the service life of equipment, saves spare part replacement cost, fills the blank of domestic tearing machine wear-resistant roller and wear-resistant spiral blade production.

[0019] 4. The utility model discloses reduce the number of replacement of the roller in the production process, adopt novel installation mode simultaneously, convenient roller's installation machine dismount, improve production efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to make the technical problems to be solved by the utility model, technical scheme and beneficial effects more clearly understood, in combination with the embodiment and drawing, the utility model is further described in detail, and it should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model, and the technical scheme of the utility model will be described in detail below in combination with the embodiment and drawing, but the protection scope is not limited thereto.

[0021] Figure 1 It is the rectangular spiral blade structure diagram for the utility model to use;

[0022] Figure 2 It is the spiral blade, protective blade and pressure reducing blade structure schematic view;

[0023] Figure 3 It is the spiral blade, protective blade and pressure reducing blade installation state section view;

[0024] Figure 4 It is the mounting post head half section view;

[0025] Figure 5 It is the curved spiral blade structure diagram for the utility model to use;

[0026] Figure 6 It is the utility model use state schematic view.

[0027] In the drawing: 1, roller, 2, spiral fan blade, 3, spiral blade, 4, protective blade, 5, pressure reducing blade, 6, mounting post head, 7, blade base, 8, cutting blade, 9, cone, 10, installation groove, 11, key, 12, spare cap, 13, pressure bead, 14, base, 15, bolt. DETAILED DESCRIPTION

[0028] In order to make the technical problems to be solved by the utility model, technical scheme and beneficial effects more clearly understood, in combination with the embodiment and drawing, the utility model is further described in detail, and it should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model, and the technical scheme of the utility model will be described in detail below in combination with the embodiment and drawing, but the protection scope is not limited thereto.

[0029] A kind of tear machine roller, with the cooperation of speed reducer, comprising: roller 1, spiral fan blade 2, spiral blade 3, pressure relief blade 5 and mounting stud 6, spiral fan blade 2 is fixedly installed on the outside of roller 1, spiral fan blade 2 is equipped with spiral blade 3, spiral blade 3 is fixedly connected with roller 1, spiral fan blade 2 tail end is equipped with pressure relief blade 5, and roller 1 front end is fixedly connected with mounting stud.

[0030] In some embodiments, spiral blade 3 is arranged between spiral fan blade 2, and the number of spiral blade 3 between the leftmost pitch of spiral fan blade 2 is greater than the number of spiral blade 3 between the right pitch of spiral fan blade 2, the width of spiral blade 3 is greater than the width of spiral fan blade 2, to ensure the cutting effect of spiral blade 3, the included angle between spiral blade 3 and the center line of roller 1 is 15 °, to reduce the longitudinal stress of wood chip received by spiral blade 3 when cutting, to reduce resistance, to reduce torque, spiral blade 3 is equipped with two screw holes, spiral blade 3 is fixedly connected with roller 1 by bolt 15, and the bolt 15 after fixing is fixed by using glue again, to make spiral blade 3 firmly fixed.

[0031] In some embodiments, spiral fan blade 2 tail end is equipped with the same direction protective blade 4, protective blade 4 protects the tail of spiral fan blade 2, to prevent the tail of spiral fan blade 2 from being deformed under pressure when the pressure is larger, the front end of protective blade 4 is equipped with pressure relief blade 5, pressure relief blade 5 is arranged perpendicularly with protective blade 4, to increase the tearing effect, pressure relief blade 5 is spaced apart from protective blade 4 by 80 cm, when wood chip is cut, wood chip debris is driven to run to the tail end of spiral fan blade 2 along with spiral fan blade 2, wood chip debris generates pressure to the left side of the equipment along spiral fan blade 2, pressure relief blade 5 is arranged perpendicularly with protective blade 4, to make part of wood chip debris move to the right side along the gap between pressure relief blade 5 and protective blade 4, to reduce the pressure on the left side of the device, to increase the crushing effect.

[0032] In some embodiments, spiral blade 3, protective blade 4 and pressure relief blade 5 all include blade base 7 and cutting blade 8, blade base 7 is inserted in roller 1, cutting blade 8 is rectangular structure, and wood chip is cut by the edge of rectangular structure.

[0033] In some embodiments, cutting blade 8 is curve structure, the rake angle of cutting blade 8 is 30 °-60 °, which is conducive to cutting into wood chip and reducing cutting force, the drag angle is 60 °-90 °, which reduces resistance and torque, to ensure the stability and wear resistance of blade in the cutting process, spiral blade 3, protective blade 4 and pressure relief blade 5 are all curve blade design, to reduce stress concentration generated in the cutting process, to make cutting force more evenly distributed on both sides of cutting blade 8, to improve the fatigue resistance of blade and prolong the service life.

[0034] In some embodiments, the pitch between spiral blade 3 of roller 1 gradually reduces from 395 cm to 378 cm from right to left, to further compress wood chip in the tear machine by the reduction of pitch.

[0035] In some embodiments, the mounting column head 6 is a conical body 9 structure, the conical body 9 is provided with a rectangular groove, the left side of the conical body 9 is provided with a base 14, the conical body 9 is fixedly connected with the roller shaft 1 through the base 14, the pressure on the deceleration is reduced, the right side of the conical body 9 is provided with a mounting groove 10, the mounting groove 10 is fixedly connected with the bearing of the speed reducer, the mounting groove 10 is provided with a rectangular groove, the mounting groove 10 is provided with a pressure bead 13, and a group of spare caps 12 are arranged on the outer side of the mounting groove 10 and used for bearing the pressure in the direction of the conical body 9. The base 14 is fixedly connected with the spare cap 12 on the outer side, so that the installation and disassembly of the roller shaft 1 are facilitated.

[0036] In some embodiments, the spiral blade 3 and the pressure relief blade 5 are made of YG8 alloy, the YG8 alloy has high hardness, wear resistance and good thermal stability, and the service life of the equipment is improved. The roller shaft 1, the spiral fan blade 2 and the mounting column head 6 are made of OCr 18 Ni5Cn4Nb, which has good wear resistance, high strength and good toughness, cooperates with Changchun Automobile Research Institute to research OCr 18 Ni5Cn4Nb material, which limits the content of Cr to 16.5-18, the content of Ni to 4-5, and the content of Cn to 3-5, OCr 18 Ni5Cn4Nb material can withstand a large torque, so that the device has a large torque.

[0037] Embodiment 1

[0038] The utility model discloses a mounting column head 6 is set, when installing the roller shaft 1, the key 11 is placed in the recess of the conical body 9, the key 11 is aligned with the recess of the mounting groove 10, the iron tongs is aligned with the spare cap 12 on the base 14, and the roller shaft 1 is pushed into the mounting groove 10, so that the installation of the roller shaft 1 is completed.

[0039] After the equipment is checked, the equipment is started, the wood chips to be torn are added into the equipment, the wood chips are conveyed to the spiral blade 3 along the spiral blade 3 at the front end of the roller shaft 1 and are torn at the spiral blade 3, the wood chips are extruded to the tail end along the spiral channel after being preliminarily torn by the inclined spiral blade 3, the wood chips are further torn by the gradually increasing spiral blade 3, and the tearing effect is greatly improved. Due to the inclination angle of the spiral blade 3, the extrusion force and stress of the spiral blade 3 during the tearing process are much smaller than before.

[0040] The wood chips are crushed into debris and extruded to the tail end of the roller shaft 1, the protection blade 4 protects the tail end of the spiral fan blade 2, the pressure relief blade 5 transmits the wood chip debris to the front end of the roller shaft 1 and reduces the pressure at the tail end of the roller shaft 1, so that the risk of breakage of the roller shaft 1 and the spiral blade 3 is reduced.

[0041] The above is further detailed description of the utility model made in combination with specific preferred embodiments, and for ordinary skilled persons in the technical field to which the utility model belongs, without departing from the premise of the utility model, a number of simple deductions or substitutions can also be made, and all should be regarded as belonging to the utility model, and the patent protection scope is determined by the submitted claim.

Claims

1. A slitter roll shaft for use in conjunction with a speed reducer, characterized by : Including: Roller, spiral fan blade, spiral blade, protective blade, pressure relief blade and mounting stud, the spiral fan blade is fixedly installed outside the roller, the spiral fan blade is provided between the spiral fan blade, the spiral fan blade is fixedly connected with the roller, the spiral fan blade tail end is provided with pressure relief blade, and the roller front end is fixedly connected with the mounting stud.

2. The roll shaft of claim 1 wherein, The spiral blade and the roller center line angle is 15°, the spiral blade is provided with two threaded holes, the spiral blade and the roller are fixedly connected through bolts, the fixed bolt is fixedly connected through glue, and the spiral blade near the roller tail end is gradually increased in number.

3. The roll shaft of claim 2 wherein, The spiral fan blade tail end is provided with a same direction protective blade, the width of the spiral blade is greater than the width of the spiral fan blade, the protective blade front end is provided with a pressure relief blade, the pressure relief blade and the protective blade are vertically arranged, and the pressure relief blade and the protective blade are spaced apart by 80cm.

4. The roll shaft of claim 3 wherein, The spiral blade, the protective blade and the pressure relief blade all include blade base and cutting blade, and the cutting blade is a rectangular structure.

5. The roll of a slitter according to claim 4, characterized in that, The cutting blade is a curved structure, the cutting blade rake angle is 30°-60°, the cutting blade relief angle is 60°-90°, and the spiral blade, the protective blade and the pressure relief blade are all curved blade designs.

6. The roll of a slitter according to claim 5, characterized in that, The spiral pitch between the spiral blade of the roller gradually decreases from 395cm to 378cm from right to left.

7. The roll of a slitter according to claim 6, characterized in that, The mounting stud is a conical body structure, the conical body is provided with a rectangular groove, the left side of the conical body is provided with a base, the right side of the conical body is provided with a mounting groove, the mounting groove is fixedly connected with the speed reducer bearing, the mounting groove is provided with a rectangular groove, the mounting groove is provided with a key, and the key is fixed in the circumferential direction of the conical body, the mounting groove is provided with a pressure bead, the outer side of the mounting groove is provided with a spare cap, and the outer side of the base is fixedly provided with a spare cap.

8. The roll shaft of claim 7 wherein, The spiral blade and the decompression blade are made of YG8 alloy, and the roller, the spiral fan blade and the mounting column head are made of OCr 18 Ni5Cn4Nb.

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