CN105377436A

CN105377436A - Rotor of pulverizer

Info

Publication number: CN105377436A
Application number: CN201380078165.4A
Authority: CN
Inventors: 车战斌
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-19
Filing date: 2013-07-19
Publication date: 2016-03-02
Also published as: WO2015006982A1

Abstract

A rotor (1) of a pulverizer comprises: a rotating shaft (2) connected to a driving apparatus; two plate-shaped outer cutter discs (3) disposed on the rotating shaft in a spaced manner; and multiple blade shafts (5) supported on the two outer cutter discs along the circumference of the outer cutter discs and each of which is connected to multiple blades (7). Multiple opening portions (32) are disposed on the circumference of each outer cutter disc. Each opening portion is provided with a clamping portion (322) and an outlet and inlet portion (321) for each blade shaft to enter or leave. The rotor of a pulverizer is also provided with a locking sleeve (4). The locking sleeve is provided a locking portion (44) fitting to the clamping portion of the opening portion and an axial joint portion (43) allowing each blade shaft to axially enter and limiting the blade shaft to radially leave. The shape of the clamping portion of the opening portion is arranged as a shape which fits to the shape of the blocking sleeve and allows the blocking portion to axially enter and limits the blocking portion to radially leave from the outlet and inlet portion of the opening portion. The rotor of a pulverizer can be rapidly assembled and replaced in a grouped manner.

Description

Rotor of pulverizer

The rotor technology field of pulverizer

The present invention relates to the rotor of pulverizer and possesses the pulverizer of the rotor.Background technology

At present, pulverizing processing is carried out to feed, grain and oil, industrial chemicals etc. and mainly uses blade type pulverizer, blade type pulverizer includes frame, the pulverizing chamber in frame and the rotor in pulverizing chamber, pulverizing chamber top is provided with charging aperture, bottom is provided with discharging opening, and screen cloth is provided with discharge outlet.The two ends of rotary shaft are supported in the pulverizing chamber in frame by bearing block, it is provided with cutterhead at regular intervals vertically on main shaft, cutterhead is spaced from each other by cutterhead spacer, multiple blade axis holes are evenly distributed with the outward flange of cutterhead, blade shaft is installed in blade axis hole, and blade is set on blade shaft and across blade spacer and along the axial arrangement of blade shaft.

When pulverizer works, material enters pulverizing chamber from charging aperture, and the blade high-speed rotation being arranged on blade shaft is driven while rotary shaft is with movable knife disc, material is crushed, and crushes qualified particle and is sifted out from the screen cloth of discharging opening.In this process, because the blade in Rotor terminal collides at a high speed with material, thus it is more serious to wear and tear, so needing that often blade and other wearing terrains are changed or repaired.However, in dismounting, it is necessary to which blade shaft, blade spacer and blade are unloaded from rotor respectively, when mounted, blade shaft will not only pass through blade spacer and blade, also sequentially pass through the blade axis hole on each cutterhead.Because the quantity of blade and spacer is more, often installing several blades and spacer will insert blade shaft in the blade axis hole on one cutterhead, this mounting means is more inconvenient, the longer activity duration is spent, thus needs to design a kind of rotor for the pulverizer that Stability Analysis of Structures is reliable, easy to operate, can quickly be assembled.（For example, referring to Fig. 3 and Fig. 4 of patent document 1)

Patent document 1:The U content of the invention of CN 202151578

What the present invention was exactly completed in view of the above problems, its object is to there is provided a kind of rotor mill that can be quickly assembled, changed in groups of mode.

A kind of rotor of pulverizer, it includes：Rotary shaft, it is connected with drive device；The outer cutterhead of two tabulars, they are fixedly installed on the rotary shaft in the way of interval；And blade shaft, it is configured with multiple, and they are respectively supported on two outer cutterheads along the circumference of the outer cutterhead, and are connected with multiple knives on each blade shaft Piece, the rotor of the pulverizer is characterised by that the outer cutterhead is being circumferentially with multiple opening portions, the discrepancy oral area that each opening portion has holding section and enters for blade shaft and deviate from；The rotor mill is additionally provided with lock sleeve, the lock sleeve is with the lock part coordinated with the holding section of the opening portion and supplies blade shaft to be axially inserted into and limits blade Axial and radial abjection axial engagement portion, wherein, the holding section of the opening portion be shaped to the lock part form fit with lock sleeve and allow lock part axially into and limit lock part and radially deviate from from the discrepancy oral area of opening portion.

According to such structure, have the following technical effect that-

1st, quick-replaceable in groups.Blade, blade spacer and blade shaft can be assembled in groups of mode in advance; blade a group by a group, blade spacer and the blade shaft assembled with groups of mode quick-replaceable; and; when mounted; the discrepancy oral area for only needing to opening portion of the blade shaft along outer cutterhead by blade and blade spacer has been provided with is moved to holding section; then the lock part of lock sleeve is axially inserted into the holding section of opening portion; blade, blade spacer and blade shaft can be just installed on rotor in the lump, so as to shorten the downtime caused based on maintenance.

2nd, the replacement operation of blade is simple, easy.Without carrying out the replacing of the parts such as blade on pulverizer as in the past, other places can be taken and changed, change space unrestricted so that operation becomes simple, improve efficiency.

3rd, due to can more allowing blade replacement, blade spacer and blade shaft in groups, the fastness on pulverizer is unaffected.

In an embodiment of the rotor of the pulverizer of the present invention, described lock sleeve includes a columnar part, blind hole or through hole are offered along the axial direction of the columnar part, the periphery of the columnar part is formed as described lock part, and the blind hole or through hole that the axial direction is opened up are formed as described axial engagement portion.

According to such structure, moving radially for blade shaft can be limited using the blind hole or through hole of columnar part, and the holding section form fit of the periphery using columnar part and the opening portion of outer cutterhead, the fixation of the radial direction of lock sleeve and the fixation of the radial direction of blade shaft are realized with simple structure.

In a preferred embodiment, the flange extended radially outwardly is formed with the columnar part, the flange is locked to the lateral surface of outer cutterhead behind the holding section in columnar part insertion opening portion.

According to such structure, due to being formed with flange on columnar part, therefore, it is possible to which lock sleeve is positioned in a direction of axial direction by making the flange be locked to the lateral surface of outer cutterhead.

In an embodiment of the rotor of the pulverizer of the present invention, the rotor of the pulverizer also has the interior cutterhead of more than one tabular, the interior cutterhead is fixedly installed on the rotary shaft and between two outer cutterheads, the interior cutterhead is being circumferentially with the opening portion that multiple confession blade shafts enter or deviate from, the opening portion of the interior cutterhead and the outer knife The opening portion of disk is axially corresponding.

According to such structure, due to being provided with multiple opening portions in interior cutterhead, therefore blade shaft can enter directly into the inside of the opening portion of each interior cutterhead, without making blade shaft be installed with sequentially passing through each cutterhead as in the past, the plenty of time can be saved, installation exercise difficulty is reduced.

In an embodiment of the rotor of the pulverizer of the present invention, the outer cutterhead has multiple circumferentially distributed blades projected radially outwardly, and described opening portion is set on each blade.

In an embodiment of the rotor of the pulverizer of the present invention, the opening of the opening portion of the outer cutterhead is towards outer cutterhead radially inner side.

In an embodiment of the rotor of the pulverizer of the present invention, the interior cutterhead has multiple circumferentially distributed blades extended radially outwardly, and described opening portion is set on each blade.

In an embodiment of the rotor of the pulverizer of the present invention, the radially inner side of the opening of the opening portion of the interior cutterhead towards interior cutterhead.In one example, the opening portion of the interior cutterhead is U-shaped.

According to such structure, blade shaft can be easy to enter and deviate from from the opening portion of interior cutterhead, and, when rotor rotates, when blade shaft is intended to bend to radial outside by centrifugal forces affect, the opening portion of U-shaped can provide blade shaft the power balanced each other with above-mentioned centrifugal force towards cutterhead radially inner side, so as to inhibit the flexure of blade shaft, improve the integral rigidity of blade shaft.

The present invention pulverizer rotor an embodiment in, be provided with the both ends of the blade shaft for by the lock sleeve axially position keeper.

According to such structure, can prevent lock sleeve when rotor rotates because of vibrations etc. from axial abjection.

The present invention pulverizer rotor an embodiment in, be provided with the blade shaft for by the blade shaft axially position keeper.

According to such structure, blade shaft can be prevented circumferentially moved because of vibrations etc. when rotor rotates or abjection.In an optional embodiment, the keeper is pin.

The present invention provides a kind of pulverizer, and the pulverizer possesses the rotor of the pulverizer described in any one of the claims claim.

According to such structure, the rotor of pulverizer can be rapidly assembled and disassembled, is easy to repair and changes.Brief description of the drawings

Fig. 1 is the stereogram of the rotor of the pulverizer of an embodiment of the invention. Fig. 2 is the front view of the rotor of an embodiment of the invention.

Fig. 3 is the plan of the outer cutterhead of the rotor of an embodiment of the invention.

Fig. 4 is the plan of the interior cutterhead of the rotor of an embodiment of the invention.

Fig. 5 is the stereogram of the lock sleeve of an embodiment of the invention.

Fig. 6 is to eliminate after blade and blade spacer, part A in Fig. 1 partial enlarged drawing in order to what is clearly showed that the structure under installment state and show.

Label declaration

1：Rotor

2：Rotary shaft

3：Outer cutterhead

32：Opening portion

4：Lock sleeve

41：Flange

42：Columnar part

43：Axially combined portion

44：Lock part

5：Blade shaft

51：Through hole

6：Interior cutterhead

62：Opening portion

7：Blade

8：Shortened cutting blade spacer

9：Long blade spacer

10：Cutterhead spacer.Embodiment

Below in conjunction with the accompanying drawings, the embodiment of the present invention is described in detail.However, it is desirable to explanation, description below is substantially exemplary only, and be not intended to limit the present invention disclose, using or use.

In an embodiment of the invention there is provided a kind of rotor 1 of pulverizer, as depicted in figs. 1 and 2, its Including：Rotary shaft 2, itself and drive device（It is not shown）Connection；(that is, the cutterhead of two ends side of rotor 1 in Fig. 1 of outer cutterhead 3 of two tabulars）, they are fixedly installed in the way of interval in rotary shaft 2；And blade shaft 5, it is configured with multiple（It is 6 in present embodiment）They are respectively supported on two outer cutterheads 3 along the circumference of the outer cutterhead 3, and multiple blades 7 are connected with each blade shaft 5, the multiple blade 7 is set on blade shaft 5 across shortened cutting blade spacer 8 and long blade spacer 9.As shown in figure 3, the outer cutterhead 3 (is 6 in present embodiment being circumferentially with multiple opening portions 32）, each opening portion 32 has holding section 322 and the discrepancy oral area 321 for entering and deviating from for blade shaft 5.As shown in Figure 5, the rotor mill 1 is additionally provided with lock sleeve 4, there is the lock sleeve 4 lock part 44 and confession blade shaft 5 with the cooperation of holding section 322 of the opening portion 32 to be axially inserted into and limit blade shaft 5 and radially deviate from axial engagement portion 43, for example, the axial engagement portion 43 can be the through hole or blind hole coordinated with blade shaft 5.Wherein, the holding section 322 of the opening portion 32 be shaped to the form fit of lock part 44 with lock sleeve 4 and allow lock part 44 axially into and limit lock part 44 and radially deviate from from the discrepancy oral area 321 of opening portion 32.

According to such structure of present embodiment, following effect is resulted in：

1st, quick-replaceable in groups.Can be in advance by blade 7, blade spacer 8, 9 and blade shaft 5 assembled in groups of mode, the blade 7 a group by a group assembled with groups of mode quick-replaceable, blade spacer 8, 9 and blade shaft 5, and, when mounted, only need to that blade 7 and blade spacer 8 will be installed, the discrepancy oral area 321 of opening portion 32 of 9 blade shaft 5 along outer cutterhead 3 is moved to holding section 322, then the lock part 44 of lock sleeve 4 is axially inserted into the holding section 322 of opening portion 32, just can be by blade 7, blade spacer 8, 9 and blade shaft 5 be installed in the lump on rotor 1, so as to shorten the downtime caused based on maintenance etc..

2nd, the replacement operation of blade is simple, easy.Without carrying out the replacing of the grade part of blade 7 on pulverizer as in the past, other places can be taken and changed, change space unrestricted so that operation becomes simple, improve efficiency.

3rd, due to can more allowing blade replacement 7, blade spacer 8,9 and blade shaft 5 in groups, the fastness on pulverizer is unaffected.

In an embodiment of the invention, as shown in Figure 3, Figure 5 and Figure 6, lock sleeve 4 includes a columnar part 42, the periphery of the columnar part 42 is formed as the lock part 44, thus allowed by the form fit of opening portion 32 of lock part 44 and outer cutterhead 3 lock part 44 axially into and limit lock part 44 and radially deviate from from the discrepancy oral area 321 of opening portion 32；Through hole is offered along the axial direction of the columnar part 42, the through hole is formed as the axial engagement portion 43, so as to insert and limit blade shaft 5 radially to deviate from for the axis of blade shaft 5.According to such structure, Moving radially for blade shaft 5 can be limited using the blind hole or through hole of columnar part 42, and the form fit of holding section 322 of the periphery using columnar part 42 and the opening portion 32 of outer cutterhead 3, the fixation of the radial direction of lock sleeve 4 and the fixation of the radial direction of blade shaft 5 are realized with simple structure.

As shown in fig. 6, being formed with the flange 41 of the ring-type extended radially outwardly on the columnar part 42, the flange 41 is locked to the lateral surface of outer cutterhead 3 behind the holding section 322 in the insertion opening portion 32 of columnar part 42.So, due to being formed with flange 41 on columnar part 42, therefore, it is possible to which lock sleeve 4 is positioned in a direction of axial direction by making the flange 41 be locked to the lateral surface of outer cutterhead 3.

As shown in Fig. 1, Fig. 4 and Fig. 6, also there is the rotor 1 of the pulverizer the interior cutterhead 6 of more than one tabular (to be 5 in present embodiment）The interior cutterhead 6 is fixedly installed in rotary shaft 2 and between two outer cutterheads 3, predetermined space is separated by cutterhead spacer 10 between interior cutterhead 6 and adjacent interior cutterhead 6 and outer cutterhead 3, the interior cutterhead 6 is being circumferentially with multiple opening portions 62, the multiple opening portion 62 enters or deviate from for blade shaft 5, and the opening portion 62 of the interior cutterhead 6 and the opening portion 32 of the outer cutterhead 3 are axially corresponding.

So, due to being provided with multiple opening portions 62 in interior cutterhead 6, therefore blade shaft 5 can enter directly into the inside of the opening portion 62 of each interior cutterhead 6, without making blade shaft 5 be installed with sequentially passing through each cutterhead as in the past, the plenty of time can be saved, installation exercise difficulty is reduced.

As shown in figure 3, the outer cutterhead 3 has multiple circumferentially distributed blades 31 projected radially outwardly, the opening portion 32 is set on each blade 31.The opening of the opening portion 32 of the outer cutterhead 3 is towards the approximately radial inner side of outer cutterhead 3.

As shown in figure 4, the interior cutterhead 6 has multiple circumferentially distributed blades 61 extended radially outwardly, the opening portion 62 is set on each blade 61.The opening of the opening portion 62 of the interior cutterhead 6 is towards the approximately radial inner side of interior cutterhead 6.In the example in the figures, the opening portion of the interior cutterhead 6 is U-shaped.As shown in fig. 6, in the assembling process of rotor, when blade shaft 5 and the penetralia of opening portion 32 of the U-shaped of each interior cutterhead 6（That is the arch section of opening portion 32）During contact, just while holding section 322 of opening portion 32 that the lock part 44 of lock sleeve 4 is axially inserted into outer cutterhead 3 are made the end of blade shaft 5 can be made to enter the axial engagement portion 43 of lock sleeve 4.

According to such structure, blade shaft 5 can be easy to enter and deviate from from the opening portion of interior cutterhead 6, and, when rotor 1 rotates, when blade shaft 5 is intended to bend to radial outside by centrifugal forces affect, the opening portion of U-shaped can provide blade shaft 5 power balanced each other with above-mentioned centrifugal force towards cutterhead radially inner side, so as to inhibit the flexure of blade shaft 5, improve the integral rigidity of blade shaft 5.

As shown in fig. 6, a through hole 51 along Axial and radial insertion is respectively equipped with the both ends of the blade shaft 5, By keepers such as pins（It is not shown）Through hole 51 is inserted in, so that simultaneously by lock sleeve 4 and blade shaft 5 in axially position.It is of course also possible to realize the axial restraint of lock sleeve 4 and blade shaft 5 by other structures.For example, through hole 51 and pin can be not provided with, but pass through the part exposed from outer cutterhead 3 at the two ends of blade shaft 5（That is, the part substantially near through hole 51）External screw thread is set, and stop nut is tightened onto the male thread portion until abutting to lock sleeve 4, so that by lock sleeve 4 and blade shaft 5 in axial restraint.In addition, blind hole can also be opened up on lock sleeve 4 to replace through hole, buckle is set on the flange of lock sleeve 4 simultaneously, and the hole clipping being clasped correspondingly is arranged on outer cutterhead 3, the axial restraint of lock sleeve 5 is realized by the engaging of buckle and hole clipping.

According to such structure, it can prevent lock sleeve 4 and blade shaft 5 from deviating from vertically because of vibrations etc. when rotor 1 rotates with simple structure.

The rotor 1 of the present invention can be applied to pulverizer, so as to rapidly assemble and disassemble the rotor 1 of pulverizer, be easy to repair and change.

The exemplary only attribute of description of the disclosure, therefore ought to be within the scope of the present disclosure without departing from the various modifications of disclosure main idea.These deformations are not to be regarded as a departure from spirit and scope of the present disclosure.

Claims

Claims

1st, a kind of rotor of pulverizer, it includes：

Rotary shaft, it is connected with drive device；

The outer cutterhead of two tabulars, they are fixedly installed on the rotary shaft in the way of interval；And blade shaft, it is configured with multiple, and they are respectively supported on two outer cutterheads along the circumference of the outer cutterhead, and are connected with multiple blades on each blade shaft,

The rotor of the pulverizer is characterised by,

The outer cutterhead is being circumferentially with multiple opening portions, the discrepancy oral area that each opening portion has holding section and enters for blade shaft and deviate from；

The rotor mill is additionally provided with lock sleeve, the lock sleeve is with the lock part coordinated with the holding section of the opening portion and supplies blade shaft to be axially inserted into and limits blade Axial and radial abjection axial engagement portion, wherein, the holding section of the opening portion be shaped to the lock part form fit with lock sleeve and allow lock part axially into and limit lock part and radially deviate from from the discrepancy oral area of opening portion.

2nd, the rotor of pulverizer according to claim 1, it is characterised in that

Described lock sleeve includes a columnar part, and blind hole or through hole are offered along the axial direction of the columnar part, and the periphery of the columnar part is formed as described lock part, and the blind hole or through hole that the axial direction is opened up are formed as described axial engagement portion.

3rd, the rotor of pulverizer according to claim 2, it is characterised in that

The flange extended radially outwardly is formed with the columnar part, the flange is locked to the lateral surface of outer cutterhead behind the holding section in columnar part insertion opening portion.

4th, the rotor of pulverizer according to claim 1, it is characterised in that

The rotor of the pulverizer also has the interior cutterhead of more than one tabular, the interior cutterhead is fixedly installed on the rotary shaft and between two outer cutterheads, the interior cutterhead be circumferentially with multiple confession blade shafts enter or abjection opening portion, the opening portion of the interior cutterhead is axial corresponding with the opening portion of the outer cutterhead.

5th, the rotor of pulverizer according to claim 1, it is characterised in that

The outer cutterhead has multiple circumferentially distributed blades projected radially outwardly, and described opening portion is set on each blade.

6th, the rotor of pulverizer according to claim 1 or 5, it is characterised in that The opening of the opening portion of the outer cutterhead is towards outer cutterhead radially inner side.

7th, the rotor of pulverizer according to claim 4, it is characterised in that

The interior cutterhead has multiple circumferentially distributed blades extended radially outwardly, and described opening portion is set on each blade.

8th, the rotor of the pulverizer according to claim 4 or 7, it is characterised in that

Radially inner side of the opening of the opening portion of the interior cutterhead towards interior cutterhead.

9th, the rotor of pulverizer according to claim 8, it is characterised in that

The opening portion of the interior cutterhead is U-shaped.

10th, the rotor of pulverizer according to claim 1, it is characterised in that

Be provided with the both ends of the blade shaft for by the lock sleeve axially position keeper.

11st, the rotor of pulverizer according to claim 1, it is characterised in that

Be provided with the blade shaft for by the blade shaft axially position keeper.

12nd, the rotor of the pulverizer according to claim 10 or 11, it is characterised in that

The keeper is pin.

13rd, a kind of pulverizer, it is characterised in that

The pulverizer possesses the rotor of the pulverizer described in any one of the claims claim.