CN202366949U

CN202366949U - Simple machinery combined energy storage roller

Info

Publication number: CN202366949U
Application number: CN2011204291794U
Authority: CN
Inventors: 高瑞进
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-10-24
Filing date: 2011-10-24
Publication date: 2012-08-08
Anticipated expiration: 2021-10-24

Abstract

The utility model discloses a simple machinery combined energy storage roller, which belongs to the technical field of combined rollers and consists of a roller shaft, a pressurizing screw nut, an upper and lower folio bearing, a pressurizing gasket, a roller sleeve and a pressure screw bolt, wherein the roller shaft is a conical shaft, six pressure screw bolt holes are uniformly distributed on the circumference of a shaft shoulder of the roller shaft, the inner surface of the roller sleeve is a conical surface, the upper end surface of the pressurization gasket is a plane, the lower end surface of the pressurization gasket is an annular inclined plane, saw tooth-shaped screw threads are processed on the inner side of the pressurization screw nut, the six pressure screw bolt holes are uniformly distributed at the circumference, and the upper and lower folio bearing consists of an upper end cover, a lower base and a roller. The simple machinery combined energy storage roller has the advantages that the axial and radial strength is greatly improved, the strength and the rigidity of the rollers are enhanced, the peeling resistance and the wear resistance are enhanced, and the problems of blasting, peeling and the like of the existing combined roller are solved.

Description

A kind of simple and mechanical combined type energy storage roll

Technical field:

The utility model belongs to rolling mill equipment, relates to the roll technology in the rolling mill technology, especially the assembly roller technical field.

Background technology:

In rolling mill equipment, roll very easily damages, and is main expendable part.Domestic and international existing roll adopts whole cast steel roll and grain roll mostly at present.Grain roll is compared with cast steel roll, and its wearability is better, but intensity is relatively poor, easily roll breakage.In order to improve roller surface hardness, used the centrifugal casting technique of roll in recent years, the roll surface of centrifugal casting roll and roll centre adopt the metal casting of heterogeneity respectively, in the hope of the unification of roller surface hardness and roll barrel intensity.Because the manufacturing cost of this roll is high, the disposable reasons such as significant wastage that cause material of scrapping of old roller, the application of centrifugal roller receives very big restriction.Subsequently; Composite (back-up) roll occurred, assembly roller is to a certain degree solving problem such as waste of material, and assembly roller adopts the antifriction alloy roller shell; Roll campaign has improved a lot; But the connecting mode of its roll shaft and roller shell adopts key connecting or welding manner more, in actual production, collapses cover, rolls accidents such as key and frequently take place.

To the problem that occurs in the assembly roller practical application, on February 19th, 1997, Chinese patent CN

The disclosed a kind of high-energy assembly roller of 1142993A overcomes the deficiency of current assembly roller prior art, has well solved in the assembly roller use and has collapsed cover, the problem of peeling off.Its mainly be introduced a kind of make with assembling process in be that energy is imported in the effective working position of benchmark breaker roll according to pressure rolling power, make it improve the high-energy roll of intensity, rigidity, anti-strip property and wearability to greatest extent.But through factual survey, this high-energy roll rarely has application aborning, because there is following shortcoming in it: the assembly manipulation process of the roller shell of this high-energy assembly roller and roll shaft is complicated; The unloading difficulty of roller shell is big; Assembling and unloading all will rely on the special hydraulic test of product design for this reason, because a whole set of hydraulic test makes production cost significantly raise; Because of long-term vibration, roller shell deformation (energy) must be unloaded roll and ressemble when reducing, and wastes time and energy in this high-energy assembly roller course of work; Be prone to cause the scratch of roll shaft outer surface and roll sleeve inner surface during the roll sleeve unloading, greatly shortened the service life of roll shaft.

The utility model provides a kind of simple and mechanical combined type energy storage roll; In the intensity that has improved roll to greatest extent, rigidity, anti-strip property and wearability; Well solved the problem that exists in the above-mentioned patent; Strengthened practicality, economy, the reliability of this assembly roller, be applied to actual production for assembly roller and have important impetus.

Summary of the invention:

The utility model provides a kind of simple and mechanical combined type energy storage roll to the deficiency of prior art.

A kind of simple and mechanical combined type energy storage roll is by roll roll shaft, pressurizing nut, split box, pressurization packing ring, roll sleeve, pressure bolt are formed up and down.

Described roll roll shaft is a diminished shaft, is processed with saw-tooth thread in the upper end of roll roll shaft, is processed with a shaft shoulder in the lower end of roll roll shaft, is evenly distributed with six pressure bolts hole around the shaft shoulder;

The inner surface of described roll sleeve is a taper surface, and the upper surface of roll sleeve is an annular slope, and the lower surface is the plane, roll sleeve with the engage sleeves of less interference on the roll roll shaft;

The upper surface of described pressurization packing ring is the plane, and the lower surface is an annular slope, and the pressurization packing ring is installed on the roll roll shaft, and is that annular slope contacts between the upper surface of lower surface and the roll sleeve of pressurization packing ring;

The inboard of described pressurizing nut is processed with saw-tooth thread, and pressurizing nut is installed on the roll roller bearing, and the saw-tooth thread of the thin end of saw-tooth thread on the pressurizing nut and roll roll shaft is that screw thread is joined, and is evenly distributed with six pressure bolts hole around the pressurizing nut;

Described pressure bolt one has 12, is installed in respectively in six pressure bolts hole on the pressurizing nut in six pressure bolts hole on the shaft shoulder with the roll roll shaft;

Described split box up and down is made up of upper end cover, lower bottom base and roller; Roller is positioned at the annular groove of the lower bottom base of split box up and down; Annular groove is stamped in the upper end of split box up and down, and split box is installed on the roll roll shaft and is pressurizeing between packing ring and the pressurizing nut up and down;

The beneficial effect of the utility model: this simple and mechanical combined type energy storage roll, greatly improved intensity, rigidity, anti-strip property and the wearability of roll, reduced the cost of roll in producing and using, make the application of existing roll have more economy.

Description of drawings:

Fig. 1 is the assembling front view of simple and mechanical combined type energy storage roll.

Fig. 2 is the front view of pressurizing nut.

Fig. 3 is the vertical view of pressurizing nut.

Fig. 4 is the front view of split box-lower bottom base up and down

Fig. 5 is the vertical view of split box-lower bottom base up and down.

Fig. 6 is the front view of split box-upper end cover up and down

Fig. 7 is the vertical view of split box-upper end cover up and down.

Fig. 8 is the front view of split box up and down.

1, roll roll shaft 2, pressurizing nut 3, split box 4, pressurization packing ring up and down

5, roll sleeve 6, the shaft shoulder 7, pressure bolt

The specific embodiment:

Below in conjunction with accompanying drawing the utility model is described further

The assembling front view of simple and mechanical combined type energy storage roll shown in Figure 1 comprises roll roll shaft 1, pressurizing nut 2, split box 3, pressurization packing ring 4, roll sleeve 5, the shaft shoulder 6, pressure bolt 7 up and down.

As shown in Figure 1, roll roll shaft 1 is a diminished shaft, and the upper end of roll roll shaft 1 has saw-tooth thread, and there is a shaft shoulder 6 lower end of roll roll shaft 1.The inner surface of roll sleeve 5 is conical surfaces, and the upper surface of roll sleeve 5 is annular slopes, and the lower surface is the plane, and roll sleeve 5 is enclosed within on the roll roll shaft 1 with interference fit, and the shaft shoulder 6 of roll roll shaft 1 can axial location roll sleeve 5.The taper surface design of the diminished shaft design of roll roll shaft 1 and the inner surface of roll sleeve 5; Make the unloading of roll roll shaft and roll sleeve and assemble more convenient; Effectively prevent simultaneously in unloading and assembling process, cause the large tracts of land scratch of inner surface of outer surface and the roll sleeve 5 of roll roll shaft 1.

As shown in Figure 1; The upper surface of pressurization packing ring 4 is planes; The lower surface is an annular slope, and pressurization packing ring 4 is installed on the roll roll shaft 1, and the lower surface of pressurization packing ring 4 and the upper surface of roll sleeve 5 are that annular slope contacts; Its effect is to make the roll sleeve 5 suffered existing axial thrust loads of compression stress that radial component also arranged, thereby makes the intensity axial and radially of roll roll shaft 1 all obtain improving significantly.

As shown in Figure 1; Split box 3 is installed between pressurization packing ring 4 and the pressurizing nut 2 up and down; When making pressurizing nut 2 rotation pressurizations; Frictional force between pressurization packing ring 4 and the pressurizing nut 2 becomes rolling friction by sliding friction, thus pressurizing nut 2 to greatest extent breaker roll axle sleeve 5 turn to compression.

As shown in Figure 2, there is saw-tooth thread the inboard of pressurizing nut 2; As shown in Figure 3, be evenly distributed with six pressure bolts hole around the pressurizing nut 2.Pressurizing nut 2 is installed on the roll roller bearing 1, and the saw-tooth thread of saw-tooth thread on the pressurizing nut 2 and roll roll shaft 1 upper end is a threaded engagement, realizes the first axial compression of roll sleeve 5, promptly imports the certain compression potential energy of roll sleeve 5.

Like Fig. 4,5, shown in 8, split box comprises upper end cover, lower bottom base and roller up and down, and roller is positioned at the annular groove of the lower bottom base of split box up and down, and annular groove is stamped in the upper end of split box up and down.

As shown in Figure 1; Pressure bolt 7 be installed in respectively in six pressure bolts hole on the pressurizing nut 2 with the roll roll shaft shaft shoulder 6 on six pressure bolts hole in; The secondary axial compression that pressure bolt 7 can be realized roll axle sleeve 5 is tightened in rotation, to reach the maximum energy storage of roll sleeve 5; When roll sleeve 5 reduces because of milling train long-term vibration axial deformation (energy storage); Under the prerequisite of not dismantling roll; Can apply axial force in real time for roll axle sleeve 5 through tightening pressure bolt 7 in real time, keep roll sleeve 5 deformation (energy storage) constant basically; During roll sleeve 5, rotate the pressure bolt 7 on the shaft shoulder 6 in unloading, roll sleeve 5 is ejected vertically, roll sleeve separates with the roll roll shaft, make the unloading of roll sleeve 5 and change time saving and energy saving.

The assembling scheme of the simple and mechanical combined type energy storage roll that the utility model provided is: as shown in Figure 1, before the assembling, earlier the pressure bolt 7 on the pressurizing nut 2 and the shaft shoulder 6 is all unloaded, and roll sleeve 5 is installed on the roll roll shaft 1 from the upper end of roll roll shaft 1; As shown in Figure 1, install successively pressurization packing ring 4 and up and down split box 3 on roll roll shaft 1.Pressurizing nut 2 is installed on the roll roll shaft 1 with threaded engagement, tightens pressurizing nut 2 with big torque spanner, and pressurizing nut applies certain axial compressive force for roll sleeve 5, makes roll sleeve 5 that certain less axial deformation (energy storage) arranged.Pressure bolt 7 is installed in the pressure bolt hole of the pressurizing nut 2 and the shaft shoulder 6, and rotates six pressure bolts on six pressure bolts and the shaft shoulder on the pressurizing nut respectively, make the identical pretightning force of each pressure bolt breaker roll roller shell 5 generation with torque spanner.Continue to be rotated down pressurizing nut 2 with big torque spanner, make pressurizing nut 2 to greatest extent breaker roll roller shell 5 apply axial compressive force, bigger compressive deformation takes place in roll sleeve 5 covers, the first axial compression of realization roll sleeve 5.Along with roll sleeve 5 is compressed, the reaction force of 5 pairs of pressurizing nuts 2 of roll sleeve increases, and the resistance that makes pressurizing nut 2 receive increases so that pressurizing nut 2 can not be rotated further, and stops axle sleeve being applied axial compressive force.

At this moment; If roll sleeve 5 does not also reach desired strain (energy storage); Can utilize again on the pressurizing nut 2 with the shaft shoulder 6 on pressure bolt 7 pair roller covers carry out second-compressed, concrete operations are: rotate six pressure bolts on the pressurizing nut with torque spanner, make breaker roll roller shell 5 apply axial force; In rotation pressure bolt 7, note; It is identical to record the moment of torsion of each pressure bolt with torque spanner, makes that the active force of each pressure bolt breaker roll roller shell 5 is identical, guarantees that roll sleeve is stressed evenly.Same method of operating can make the pressure bolt 7 breaker roll roller shells 5 on the shaft shoulder 6 apply axial force, thereby realizes the second-compressed (energy storage) of roller shell.

Offload scheme: at first utilize torque spanner to unclamp six pressure bolts on the pressurizing nut 2, and then utilize big torque spanner that pressurizing nut 2 is unloaded; After pressurizing nut unloaded, split box 3 unloaded with pressurization packing ring 4 up and down successively; Utilize six pressure bolts 7 on the torque spanner backward rotation shaft shoulder 6, make pressure bolt 7 breaker roll roller shells 5 apply axial force, thereby roll sleeve 5 is ejected, make with roll sleeve and separate, so just realized the unloading of roll sleeve 5 with the roll roll shaft.

Claims

1. simple and mechanical combined type energy storage roll by roll roll shaft, pressurizing nut, split box, pressurization packing ring, roll sleeve, pressure bolt are formed up and down, is characterized in that:

The inner surface of described roll sleeve is the conical surface, and the upper surface of roll sleeve is an annular slope, and the lower surface is the plane, roll sleeve with the engage sleeves of less interference on the roll roll shaft;

The inboard of described pressurizing nut is processed with saw-tooth thread, and pressurizing nut is installed on the roll roll shaft, and the saw-tooth thread of the thin end of saw-tooth thread on the pressurizing nut and roll roll shaft is that screw thread is joined, and is evenly distributed with six pressure bolts hole around the pressurizing nut;

Described pressure bolt one has 12, be installed in respectively in six pressure bolts hole on the pressurizing nut with the roll roll shaft shaft shoulder on six pressure bolts hole in;

Described split box up and down is made up of upper end cover, lower bottom base and roller; Roller is positioned at the annular groove of the lower bottom base of split box up and down; Annular groove is stamped in the upper end of split box up and down, and split box is installed on the roll roll shaft and is pressurizeing between packing ring and the pressurizing nut up and down.