Double-roll crusher with defencive function
Technical field
The utility model is mainly concerned with the sample making apparatus field, refers in particular to a kind of double-roll crusher.
Background technology
At present, double-roll crusher mainly by running roller, running roller spring bearing, compress with adjusting device and drive unit etc. and partly form.Double-roll crusher is the roll shaft that utilizes two groups of independent transmissions, and the crowded power of rolling of rotation generation is come broken material relatively.Shattering process is roughly following: get into when material after the crusher chamber of machine, material receives the power of the nibbling effect of rotating roll shaft, and material is forced through between two rollers; What receive roll shaft simultaneously crowdedly rolls and cuts mill, and material begins cracked, and the granule after cracked is along the tangent line of roller rotation; Discharge in gap through two roll shafts; Surpass the large granular materials in gap, continue to be broken, until meeting the requirements.
In said structure, before the work beginning, the spacing between two rollers has just been adjusted.But, in the course of work, when the too big or hardness of the particle of running into material is strong, because the spacing between two rollers is certain, the situation that two rollers damage will appear.
The utility model content
The technical problem that the utility model will solve just is: to the technical problem that prior art exists, the utility model provide a kind of simple and compact for structure, with low cost, can self adaptation adjustment roller spacing in order to the protection complete machine and then improve the double-roll crusher with defencive function of its security.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of double-roll crusher with defencive function; Comprise roller bracket, fixed roll wheel and action roller wheel, said action roller wheel is installed on the running roller slide, and said roller bracket is provided with guide rail; Said running roller slide is slidedly arranged on the guide rail, is provided with the protection spring between the end of said running roller slide and the roller bracket.
Further improvement as the utility model:
The end of said running roller slide is provided with protection screw bolt seat and protection screw rod, and said protection spring housing is located on the protection screw rod.
Said protection screw rod is provided with adjusting nut.
The top of said running roller slide is provided with more than one puller bolt and locking nut.
Be provided with ball between said puller bolt and the running roller slide.
The top of said roller bracket is provided with the splashproof material bin, and all sides of said splashproof material bin are provided with the splashproof protective cover.
Said splashproof material bin is provided with bending segment.
Be provided with preloading spring between said action roller wheel and the roller bracket.
Compared with prior art; The advantage of the utility model is: the double-roll crusher that the utlity model has defencive function; Simple and compact for structure, with low cost, can adjust the roller spacing adaptively; Prevent that large granular materials or high rigidity material from causing damage to two rollers, effectively protects complete machine.The utility model is provided with splashproof material bin and protective cover, can prevent effectively that material from splashing the back to the threat of operating personnel's personal safety, the security that further improves complete machine.
Description of drawings
Fig. 1 is the structural representation that the utility model master looks;
Fig. 2 is the plan structure sketch map after the utility model removes protective cover;
Fig. 3 is the structural representation when the fixed roll wheel is in operate as normal in the utility model;
Fig. 4 is the structural representation when the fixed roll wheel is in non-normal working in the utility model;
Fig. 5 is the structure for amplifying sketch map at I place among Fig. 3;
Fig. 6 be among Fig. 4 the A-A place analyse and observe the structure for amplifying sketch map.
Marginal data:
1, adjusting nut; 2, roller bracket; 3, protection spring; 4, protection screw bolt seat; 5, drive sprocket; 6, fixed roll wheel; 7, running roller slide; 8, roller chain; 9, preloading spring; 10, driven sprocket; 11, action roller wheel; 12, chain tension gear; 13, support base plate; 14, splashproof material bin; 141, bending segment; 15, protective cover; 16, protection screw rod; 17, puller bolt; 18, locking nut; 19, ball; 20, guide rail.
The specific embodiment
Below will combine Figure of description and specific embodiment that the utility model is explained further details.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 6; The utlity model has the double-roll crusher of defencive function, comprise roller bracket 2, fixed roll wheel 6 and action roller wheel 11, roller bracket 2 is provided with support base plate 13; Fixed roll wheel 6 is provided with drive sprocket 5; Action roller wheel 11 is provided with driven sprocket 10, is arranged with roller chain 8 on drive sprocket 5, driven sprocket 10 and the chain tension gear 12, drives drive sprocket 5 by driving mechanism and rotates with driven sprocket 10; And then driving fixed roll wheel 6 and relative rolling of action roller wheel 11 generations, the material of sending into is between the two carried out fragmentation.
Action roller wheel 11 is installed on the running roller slide 7 in the utility model, and roller bracket 2 is provided with guide rail 20, and running roller slide 7 is slidedly arranged on the guide rail 20, can be with action roller wheel 11 motion on guide rail 20.Between the end of running roller slide 7 and roller bracket 2, be provided with protection spring 3.Need broken material to get between the crack of two running rollers formation, two running rollers rotate in opposite directions and make material crowded broken.Referring to Fig. 4; When the hard thing that surpasses the broken limit gets into; Broken extruding force is greater than the compression stress of protection spring 3; The preset spring force that fixed roll wheel 6 will overcome protection spring 3 move to the left make hard thing can from fixed roll take turns 6 and action roller wheel 11 between crack pass through, to play the function of protection mechanism.And hardness, the granular size of working as material are just often, referring to Fig. 3, keep certain spacing to implement operation between fixed roll wheel 6 and the action roller wheel 11.
Further, in the present embodiment, install for ease and adjust, the end of running roller slide 7 is provided with protection screw bolt seat 4 and protection screw rod 16, and protection spring 3 is sheathed on the protection screw rod 16, and protection screw rod 16 is provided with adjusting nut 1.
Further, in the present embodiment, referring to Fig. 5, the top of running roller slide 7 is provided with more than one puller bolt 17 and locking nut 18, and position that can pair roller wheel slide 7 through puller bolt 17 and locking nut 18 locks.Wherein, be provided with ball 19 between puller bolt 17 and the running roller slide 7.
Further, in the present embodiment, the top of roller bracket 2 is provided with splashproof material bin 14, and all sides of splashproof material bin 14 are provided with splashproof protective cover 15.Material falls into when carrying out fragmentation between fixed roll wheel 6 and the action roller wheel 11 from splashproof material bin 14; Granular material and two running rollers collision and when being squeezed; Can present the state that splashes toward the top; The people stood in the foreign material that instrument next door is easy to splashed out when reinforced toward splashproof material bin 14 and damaged this moment, or splashed in the eyes and damage.In the present embodiment, splashproof material bin 14 is provided with bending segment 141, makes the pan feeding passage be a bending angle, is intercepted and can not outwards splash by the passage of bending segment 141 from the foreign material that eject between two running rollers, thereby play the function of protecting operator's personal safety.
Further, in the present embodiment, be provided with preloading spring 9 between action roller wheel 11 and the roller bracket 2, can adjust the position of action roller wheel 11.
Below only be the preferred implementation of the utility model, the protection domain of the utility model also not only is confined to the foregoing description, and all technical schemes that belongs under the utility model thinking all belong to the protection domain of the utility model.Should be pointed out that for those skilled in the art,, should be regarded as the protection domain of the utility model in the some improvement and the retouching that do not break away under the utility model principle prerequisite.