CN1250689A

CN1250689A - Roller-type multi-cavity crusher

Info

Publication number: CN1250689A
Application number: CN 99122177
Authority: CN
Inventors: 徐继东
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-11-01
Filing date: 1999-11-01
Publication date: 2000-04-19

Abstract

The multicavity roll breaker for breaking various ore materials is mainly characterized by that it uses several rotating rolls, toothed plates mounted at two sides of rolls and lining boards mounted at both ends of machine box to form several breaking working cavities, and the distances between rolls and toothed plates can beregulated respectively,and the main shaft is rotated by one cycle, the several breaking cavities alternatively do work so as to shorten the intermittent time of main shaft work, can raise working efficiency and reduce load of main shaft, so that it is favourable for raising service life of main shaft and related parts, reducing cost, convenient maintenance and raising breaking quality.

Description

Roller-type multi-cavity crusher

The invention belongs to the crushing technology apparatus field, particularly a kind of roller-type multi-cavity crusher, it can be widely used in the operation broken in small, broken bits of various ores or rock material.

Prior art " two-chamber revolution jaw crusher " (referring to Chinese patent 91232505.4) mainly adopts double cavity structure to carry out fragmentation work, to exist structure stress big for this technology in practice, main shaft is in each work period, have only the time of 1/3-1/2 to be in broken duty, all the other times are in intermittently state, the problem that intermittent time is long, thereby the energy consumption of this machine can not be made full use of, because reasons in structure, main shaft and other constitutional detail sizes are bigger when the type of design high throughput, the manufacturing cost height has limited this machine to high throughput, large scale development.

For overcoming the shortcoming of prior art, it is reasonable to the purpose of this invention is to provide a kind of structure stress, makes full use of energy consumption more, is convenient to the roller-type multi-cavity crusher to large scale development.

Technical scheme of the present invention is to realize by the structure that designs a plurality of broken working chambers.Promptly on main shaft, design the eccentric face of two or more equal lengths, the center of each eccentric face equates with the offset distance at main axis rotation center, certain angle mutually along the circumferential direction offsets between the center of each eccentric face, on each eccentric face, be separately installed with bearing and transfer roller, the radially both sides correspondence of each transfer roller is being provided with tooth plate, form broken working chamber between transfer roller and the tooth plate, tooth plate is fixed on the supporting plate, through adjustment, buffering, insurance institution can change and transfer roller between distance.This structure makes and axially to form four or more broken working chamber along main shaft, and main shaft whenever rotates a circle, this four or more broken working chamber crushing operation that hockets.

The present invention compares with prior art " two-chamber revolution jaw crusher " has following advantage:

1. improved the main shaft force-bearing situation.When if the main shaft axial length is identical, main shaft of the present invention is stressed to have only the stressed 50%-70% of prior art main shaft.The improvement of this force-bearing situation makes each element size of disintegrating machine reduce, and the life-span prolongs, and manufacture difficulty reduction expense reduces.

2. reduced the consumption of power.Have only twice broken work in one week of prior art main shaft work, one week of main shaft work of the present invention but can work more than four times or four times, has made full use of the intermittence on the main shaft work space-time, has reduced power consumption.

3. easy to use and the maintenance.The tooth plate among the present invention and the distance of transfer roller all can be adjusted respectively, when the wearing and tearing of indivedual tooth plates occurring, can remedy by indivedual adjustment, thereby effectively guarantee the quality of crushed product; Because the geomery of tooth plate is little, in light weight, is convenient to repair and replacement.

4. the present invention compared with prior art increases and to be provided with buffer unit, and this device can play and slow down broken the impact, alleviates the broken impulsive force that main shaft is subjected to, and prolongs the life-span of main shaft and parts on shaft.

Accompanying drawing of the present invention is as follows:

Fig. 1 is the roller-type multi-cavity crusher structural representation

Fig. 2 is the A-A sectional top view of Fig. 1

Fig. 3 is a B-B cross section amplification plan view among Fig. 2

Fig. 4 is each parts title in the cross section enlarged drawing accompanying drawing 1, Fig. 2 of the part 3 among Fig. 1

1. back-moving spring and pull bar 2. are adjusted backing plate 3. protectors, 4. buffer 5. transverse axis, 6. tooth plates and carriage 7. transfer rollers 8. liner plates 9. feeding mouths 10. main shafts 11. belt pulleys 12. cabinet .13. motors 14. supports 15. flywheels

Now in conjunction with the accompanying drawings the embodiment of the invention is done detailed description:

As shown in Figure 1 and Figure 2, the present invention mainly is made up of the crushing mechanism and support 14, motor 13 and the transmission device that are installed in the cabinet 12.Broken working portion of the present invention mainly is made up of main shaft 10, transfer roller 7, tooth plate and carriage 6 and liner plate 8.Its main shaft 10 is installed on the cabinet 12; can rotate flexibly; three eccentric faces on main shaft 10, have been designed; on each eccentric face, transfer roller 7 is installed by bearing; these transfer rollers can be done rotating relative to eccentric face; liner plate 8 is installed on cabinet 12; tooth plate and carriage 6 be by transverse axis 5 corresponding respectively be installed on the transfer roller both sides; each tooth plate and carriage 6 all can be done small size swing around transverse axis 5; back-moving spring and pull bar 1 are with protector 3; buffer 4 and tooth plate and carriage 6 closely are fixed together with cabinet; play the effect that guarantees to maintain between tooth plate and the transfer roller fixed range, buffer 4 and protector 3 also can play and absorb the excess load impact, the effect of protection main shaft.

By Fig. 1 and Fig. 2 as can be seen: in the present invention,, formed six broken working chambers by the combination of transfer roller 7, tooth plate and supporting plate 6 and liner plate 8.End at main shaft 10 is equipped with a belt pulley 11, and it is connected with motor 13 by belt, forms transmission mechanism.

Find out among the present invention in conjunction with Fig. 2 and Fig. 3, three eccentric working faces have been designed at the middle part of main shaft 7, and for ease of installing, the diameter of three eccentric faces can be different, the center of each eccentric working face all has been offset the distance that equates with the main shaft center of rotation, and the angle that along the circumferential direction offsets mutually.As shown in Figure 3,0 is the center of rotation of main shaft 10,01,02,03 center that is respectively three eccentric faces, the main shaft center of rotation is respectively 0 01,0 02,0 03 to the distance at eccentric face center, wherein: 0 01=0 0,2=0 03, size is selected in 0.5-30 millimeter scope, three eccentric faces along the circumferential direction mutually the angle of displacement of skew between 15 °-180 °, select, each transfer roller is respectively by 2 bearings, be installed on the eccentric working face of main shaft 10, belt pulley 11 and flywheel 15 are equipped with in the two ends of main shaft 10.

Between cabinet and buffer, be provided with protector as shown in Figure 1 and Figure 4; this protector is made by cast iron or other materials; Φ 1=Φ 2 among the figure; formed the ring-type shearing section by Φ 1, Φ 2, B; (generally entering broken working chamber by non-broken thing caused when impulsive force exceeded the shear stress allowable of ring-type shear surface when the protector two ends are subjected to; as: iron block bore bit etc.); protector is just with destroyed; tooth plate and carriage 6 strengthen with the distance of transfer roller 7 under the effect of pull bar and back-moving spring 1; non-broken thing is discharged, thereby play the effect of protection main shaft and parts on shaft.

Crushing operation process of the present invention is: main shaft 10 is done directed the rotation under motor 13 and actuator drives, forms a quantitative space, both broken working chamber between tooth plate and carriage 6, transfer roller 7 and the liner plate 8.Transfer roller 7 does relative motion to tooth plate under the eccentric face of main shaft 10 promotes, and makes that the distance between transfer roller and the tooth plate is descending periodically, and ascending is again changing.Ore waits for that broken material enters broken working chamber through feeding mouth 9, and when broken working chamber diminished, material was impacted, pushes and fragmentation; When broken working chamber became big, broken material was being discharged below tooth plate under the effect of gravity, has finished the operation to broken material.Because angle of three mutual displacements of eccentric face, make changing that distance between three transfer rollers and six tooth plates replaces respectively, main shaft whenever circles, just alternately carry out six broken work, the work intermittent time of main shaft 10 shortens dramatically like this, made full use of power source more, the force-bearing situation of main shaft also improves.

In the present embodiment, buffer 4 and protector 3 have all been installed in the back of six cover tooth plates and carriage 6, make the distance between each tooth plate and transfer roller to adjust respectively, this structural design helps guaranteeing the uniformity of broken back product granularity, helps guaranteeing product quality.

In the present embodiment, cabinet adopts the steel plate splicing to be welded, and the antifriction alloy built-up welding is adopted on the transfer roller surface, and tooth plate adopts cast steel, and the disk spring group that buffer is made by the manganese steel material is formed, and protector adopts cast iron to make.

Claims

1. roller-type multi-cavity crusher, its composition comprises the crushing mechanism that is installed in the cabinet (12), transmission mechanism, motor (13) and support (14), main shaft (10) is arranged in its crushing mechanism, transfer roller (7), tooth plate and carriage (6), transverse axis (5), liner plate (8), back-moving spring and pull bar (1), buffer (4), protector (3), belt pulley (11) and flywheel (15), it is characterized in that: on the main shaft (10) that cabinet (12) is installed, two or more eccentric faces are arranged, the center of each eccentric face equates with the distance of main shaft (10) center of rotation, and a fixing displacement angle mutually along the circumferential direction offsets, on each eccentric face, by bearing transfer roller (7) is installed, the axial both sides of each transfer roller, correspondence is installed with transverse axis (5) and tooth plate and carriage (6), liner plate (8) is installed, by transfer roller (7) on the cabinet (12), tooth plate and carriage (6), liner plate (8) is formed four or more crusher chamber; By back-moving spring and pull bar (1), buffer (4), protector (3), can adjust the distance between tooth plate and the transfer roller (7) respectively.

2. disintegrating machine according to claim 1 is characterized in that: two or more eccentric faces are arranged on the described main shaft (10), and according to structural requirement, the diameter of eccentric face can be different; The center of each eccentric face equates that with the distance of main shaft (10) center of rotation its distance is between the 0.5-30 millimeter, and the angle that along the circumferential direction offsets mutually is between 15 °-180 °.

3. disintegrating machine according to claim 1, it is characterized in that: the axial both sides correspondence of each transfer roller transverse axis (5) and tooth plate and carriage (6) be installed, by back-moving spring and pull bar (1), buffer (4), protector (3), can adjust the distance between tooth plate and the transfer roller (7) respectively.Distance between tooth plate and the transfer roller (7) can be adjusted respectively, and adjusting range is between the 1-100 millimeter.

5. according to the described disintegrating machine of claim 1, it is characterized in that: described buffer (4) is made up of the disk spring sheet, cushions compressible amount between the 0.5-10 millimeter.

6. according to the described disintegrating machine of claim 1, it is characterized in that: a ring-type shear surface is arranged on the described protector (3), and its safety effect is to finish by the destruction of ring-type shear surface, and its material is cast iron or other materials.