CN217774279U

CN217774279U - Crusher toothed plate and crusher

Info

Publication number: CN217774279U
Application number: CN202221962685.4U
Authority: CN
Inventors: 徐瑞军; 马小龙; 张华�; 邵津津; 高海聪; 王浩; 田磊; 程进正
Original assignee: Shaanxi Shenyan Coal Co Ltd Of National Energy Group
Current assignee: Shaanxi Shenyan Coal Co Ltd Of National Energy Group
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2022-11-11
Anticipated expiration: 2032-07-27

Abstract

The utility model provides a breaker pinion rack and breaker, wherein the breaker pinion rack includes: the arc-shaped substrate is provided with a length direction and an arc direction; the crushing parts are arranged on the arc-shaped base body, and are uniformly distributed along the length direction and staggered along the arc direction; wherein the crushing part comprises high teeth, low teeth and an interdental belt; the high teeth and the low teeth are arranged at intervals along the arc direction; the interdental belt is connected with the high teeth and the low teeth; the crushing part is provided with a symmetrical surface vertical to the length direction, and the symmetrical surface divides the high teeth, the low teeth and the inter-tooth belt into two symmetrical parts; the high teeth and the low teeth work in a matched mode, so that the crushing capacity and the crushing efficiency of a toothed plate of the crusher are improved; the rigid connection between the teeth is adopted to connect the high teeth and the low teeth, so that the rigidity and the strength of the high teeth and the low teeth are effectively improved, the working stability of the high teeth and the low teeth is ensured, and the service life is prolonged.

Description

Crusher toothed plate and crusher

Technical Field

The utility model relates to a breaker technical field particularly, relates to a breaker pinion rack and breaker.

Background

At present, to the design of broken tooth on the breaker pinion rack, mainly adopt the broken tooth that common profile of tooth and same tooth are high, the broken tooth that waits the tooth height is limited to the crushing ability of bold material, appears the phenomenon of bold harder material at broken tooth top relapse "spring" easily when the breakage, leads to whole crushing efficiency to low, and because a plurality of broken teeth all distribute alone, the rigidity of a single broken tooth is limited, crackle or fracture appear easily under the condition of carrying out broken work for a long time.

SUMMERY OF THE UTILITY MODEL

The utility model provides a breaker pinion rack and breaker to solve among the prior art breaker pinion rack crushing efficiency low with the limited problem of broken tooth rigidity.

In order to solve the problem, according to the utility model discloses an aspect, the utility model provides a breaker pinion rack, include: the arc-shaped substrate is provided with a length direction and an arc direction; the crushing parts are arranged on the arc-shaped base body, and are uniformly distributed along the length direction and staggered along the arc direction; wherein the crushing part comprises high teeth, low teeth and an interdental belt; the high teeth and the low teeth are arranged at intervals along the arc direction; the interdental belt is connected with the high teeth and the low teeth; the crushing part is provided with a symmetrical surface which is vertical to the length direction and divides the high teeth, the low teeth and the interdental belt into two symmetrical parts respectively.

Further, the range of the tooth height of the high teeth is 83-88mm; the range of the tooth height of the low teeth is 60-70mm.

Further, the tooth width of the high teeth is the same as the tooth width of the low teeth; the height of the inter-tooth belt does not exceed the tooth height of the lower teeth; the width of the inter-tooth belt is smaller than the tooth width of the low teeth.

Furthermore, the radian of the crushing part in the arc direction is equal to the radian of the arc-shaped base body in the arc direction, and the positions of the crushing part which are not provided with the high teeth and the low teeth in the arc direction are both provided with the inter-tooth belts.

Furthermore, the low teeth are provided with hanging holes which penetrate through the low teeth along the length direction.

Further, high tooth and low tooth all have the crushing face, and the crushing face all sets up along same direction slope.

Further, the arcuate base includes a plurality of sets of threaded holes; a threaded hole group comprises a plurality of threaded holes, and the threaded holes penetrate through the arc-shaped base body; in the length direction, each threaded hole group is distributed between every two crushing parts; a plurality of threaded holes in one threaded hole group are arranged at intervals in the direction of an arc.

Further, the arc-shaped base body and the crushing part are of an integrated structure formed by casting.

Furthermore, the arc-shaped base body is provided with an arc-shaped surface, a bottom surface and two connecting surfaces; a plurality of crushing parts are arranged on the arc-shaped surface; the two connecting surfaces are respectively connected with the bottom surface and the two ends of the arc-shaped surface; the two connecting surfaces are respectively vertical to the arc-shaped surfaces.

According to another aspect of the present invention, there is provided a crusher comprising a first roller shaft, a second roller shaft and the above crusher toothed plate; the first roller shaft and the second roller shaft are arranged in parallel, and the first roller shaft and/or the second roller shaft are/is rotatably arranged; the crusher toothed plates are uniformly distributed and installed on the outer peripheral surfaces of the first roll shaft and the second roll shaft respectively; the crushing parts in two adjacent crusher toothed plates respectively mounted on the first roller shaft and the second roller shaft are arranged in a staggered manner.

Furthermore, the rotating speed of the first roller shaft is the same as that of the second roller shaft, and the rotating direction of the first roller shaft is opposite to that of the second roller shaft.

Use the technical scheme of the utility model, the utility model provides a breaker pinion rack, include: the arc-shaped substrate is provided with a length direction and an arc direction; the crushing parts are arranged on the arc-shaped base body, and are uniformly distributed along the length direction and staggered along the arc direction; wherein the crushing part comprises high teeth, low teeth and an interdental belt; the high teeth and the low teeth are arranged at intervals along the arc direction; the interdental belt is connected with the high teeth and the low teeth; the crushing part is provided with a symmetrical surface vertical to the length direction, and the symmetrical surface divides the high teeth, the low teeth and the inter-tooth belt into two symmetrical parts; the high teeth and the low teeth work in a matched mode, so that the crushing capacity and the crushing efficiency of a toothed plate of the crusher are improved; the rigid connection between the teeth is adopted to connect the high teeth and the low teeth, so that the rigidity and the strength of the high teeth and the low teeth are effectively improved, the working stability of the high teeth and the low teeth is ensured, and the service life is prolonged.

Drawings

The accompanying drawings, which form a part of the specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the scope of the invention. In the drawings:

fig. 1 shows a top view of a crusher toothed plate provided by an embodiment of the present invention;

fig. 2 shows a full sectional view of a crusher toothed plate provided by an embodiment of the present invention;

fig. 3 shows a left side view of a crusher toothed plate provided by an embodiment of the present invention.

Wherein the figures include the following reference numerals:

10. an arc-shaped substrate; 11. a threaded hole; 12. an arc-shaped surface; 13. a bottom surface; 14. a connecting surface;

20. a crushing section; 21. high teeth; 22. low teeth; 221. hoisting holes; 23. an inter-tooth belt; 24. and (3) crushing the flour.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-3, embodiments of the present invention provide a crusher toothed plate, comprising: an arc-shaped base body 10, the arc-shaped base body 10 having a length direction and an arc direction; a plurality of crushing parts 20, wherein the crushing parts 20 are arranged on the arc-shaped base body 10, and the crushing parts 20 are uniformly arranged along the length direction and are staggered along the arc direction; wherein the crushing part 20 comprises high teeth 21, low teeth 22 and an interdental band 23; the high teeth 21 and the low teeth 22 are arranged at intervals along the arc direction; the inter-tooth belt 23 connects the high teeth 21 and the low teeth 22; the crushing portion 20 has a symmetrical plane perpendicular to the longitudinal direction, and the symmetrical plane divides the high tooth 21, the low tooth 22 and the interdental belt 23 into two symmetrical parts, respectively. The high teeth 21 and the low teeth 22 work in a matched mode, so that the crushing capacity and the crushing efficiency of a toothed plate of the crusher are improved; the inter-tooth belt 23 is rigidly connected with the high teeth 21 and the low teeth 22, so that the rigidity and the strength of the high teeth 21 and the low teeth 22 are effectively improved, the working stability of the high teeth 21 and the low teeth 22 is ensured, and the service life is prolonged.

In one embodiment of the present invention, the plurality of crushing portions 20 are uniformly arranged at an interval of 102.5mm in the length direction.

The range of the tooth height of the high teeth 21 is 83-88mm; the low teeth 22 have a tooth height in the range of 60-70mm. At this numerical range, under the prerequisite that the broken ability of high tooth 21 and low tooth 22 satisfied actual broken demand, accomplished the lightweight of certain degree for breaker pinion rack material saving more, overall cost is lower.

In one embodiment of the present invention, the height of the high teeth 21 is 85mm; the low teeth 22 have a height of 60mm. Through practical use tests, the crushing capacity of the large materials is remarkably improved, the phenomenon that the large materials repeatedly bounce at tooth tops is avoided, and a good crushing effect is achieved.

The tooth width of the high teeth 21 is the same as that of the low teeth 22; the height of the inter-tooth belt 23 does not exceed the tooth height of the lower teeth 22; the width of the inter-tooth belt 23 is smaller than the tooth width of the low teeth 22. By the arrangement, the working stability of the toothed plate of the crusher is ensured, and the inter-toothed belt 23 does not influence the crushing action of the high teeth 21 and the low teeth 22.

In one embodiment of the present invention, the width and height of the interdental belt 23 are both 20mm. Through practical use tests, the material has good use effect and ensures the discharge granularity.

The radian of the crushing part 20 in the arc direction is equal to the radian of the arc-shaped base body 10 in the arc direction, and the interdental belts 23 are arranged at the positions of the crushing part 20 which are not provided with the high teeth 21 and the low teeth 22 in the arc direction. So set up, the discharge granularity of breaker pinion rack has further been guaranteed to the inter-tooth area 23.

As shown in fig. 2 and 3, the low teeth 22 have hanging holes 221, and the hanging holes 221 penetrate the low teeth 22 in the longitudinal direction. Compared with the prior art, the position of the hanging hole 221 is optimized and adjusted, the hanging hole 221 is not arranged on the high tooth 21, so that the back abrasion of the high tooth 21 caused by the hoisting action is avoided, and the hanging hole 221 is completely arranged on the low tooth 22, so that the low tooth 22 has lower working strength and smaller impact, and the probability of damage of the hanging hole 221 is reduced.

As shown in fig. 2, each of the high teeth 21 and the low teeth 22 has a crushing surface 24, and the crushing surfaces 24 are inclined in the same direction. Set up like this, at the actual operation in-process, through the direction of rotation and the unanimity of incline direction of setting for the roller, guaranteed the crushing effect of breaker pinion rack.

As shown in FIG. 1, the arcuate base 10 includes a plurality of threaded hole sets; one threaded hole group comprises a plurality of threaded holes 11, and the threaded holes 11 penetrate through the arc-shaped base body 10; each of the screw hole groups is distributed between each two of the crushing sections 20 in the length direction; the plurality of screw holes 11 in one screw hole group are arranged at intervals in the circular arc direction. In practical application, the screw hole 11 mainly plays the effect of fixing the breaker pinion rack on the roller of breaker, and the screw hole 11 that sets up like this has guaranteed the reliable fixed of breaker pinion rack on the roller.

The arc-shaped base body 10 and the crushing part 20 are of a cast and formed integral structure. Through casting integrated into one piece, improved holistic intensity and the rigidity of breaker pinion rack, practiced thrift the cost.

As shown in fig. 2, the arc-shaped base body 10 has an arc-shaped surface 12, a bottom surface 13 and two connecting surfaces 14; a plurality of crushing sections 20 are installed on the arc-shaped face 12; the two connecting surfaces 14 are respectively connected with the two ends of the bottom surface 13 and the arc-shaped surface 12; the two connecting surfaces 14 are perpendicular to the arc surfaces 12. Two connection faces 14 that set up like this have guaranteed the convenience of a plurality of breaker pinion racks aggregate erection on the roller.

The utility model also provides a crusher, which comprises a first roller shaft, a second roller shaft and the crusher toothed plate; the first roller shaft and the second roller shaft are arranged in parallel, and the first roller shaft and/or the second roller shaft are/is rotatably arranged; the crusher toothed plates are uniformly distributed and installed on the outer peripheral surfaces of the first roll shaft and the second roll shaft respectively; the crushing sections 20 in two adjacent crusher toothed plates mounted on the first and second roller shafts, respectively, are staggered. The crusher with the toothed plate has the advantages of higher crushing efficiency and crushing capacity, stable operation and more contribution to crushing of large materials.

The rotating speed of the first roller shaft is the same as that of the second roller shaft, and the rotating direction of the first roller shaft is opposite to that of the second roller shaft. By the arrangement, the crushing efficiency of the crusher is improved, and the discharging granularity of the crusher is ensured to meet the actual requirement.

It is worth mentioning that: relative motion of two rollers is like a rotatory check sieve in this breaker, and the material that satisfies the granularity requirement is at first leaked down by roller or roller and breaker's welt clearance and is realized preliminary screening to can avoid that partial material to pass through the recrushment of pinion rack, both reduced the excessive breakage rate and the energy consumption of material, reduced crushing time again, prolonged life. Meanwhile, the two roll shafts have opposite rotation directions, so that the shearing and stretching crushing effects are better. The movement of the crushing part 20 also enables the materials to be forcibly discharged after being crushed, so that congestion is not easy to occur, and the material crusher is also suitable for viscous materials and materials with high moisture content.

The crusher is suitable for crushing raw coal (the raw coal is allowed to contain less than 30 percent of gangue) in coal mines, coal preparation plants and other industries, can also be used for crushing other materials with similar hardness to the raw coal, and has the characteristics of high efficiency, long service life, small material passing fragmentation, relatively uniform discharging granularity and the like.

In summary, the utility model provides a toothed plate of a crusher and the crusher, which improves the crushing capacity and the crushing efficiency of the toothed plate of the crusher through the matching work of high teeth 21 and low teeth 22; the inter-tooth belt 23 is rigidly connected with the high teeth 21 and the low teeth 22, so that the rigidity and the strength of the high teeth 21 and the low teeth 22 are effectively improved, the working stability of the high teeth 21 and the low teeth 22 is ensured, and the service life is prolonged.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

Unless specifically stated otherwise, the relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be discussed further in subsequent figures.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

For ease of description, spatially relative terms such as "over 8230 \ 8230;,"' over 8230;, \8230; upper surface "," above ", etc. may be used herein to describe the spatial relationship of one device or feature to another device or feature as shown in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary terms "at 8230; \8230; above" may include both orientations "at 8230; \8230; above" and "at 8230; \8230; below". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms do not have special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A crusher toothed plate, comprising:

an arcuate substrate (10), the arcuate substrate (10) having a length direction and an arc direction;

the crushing parts (20) are provided in plurality, the crushing parts (20) are arranged on the arc-shaped base body (10), and the crushing parts (20) are uniformly arranged along the length direction and are staggered along the arc direction;

wherein the crushing part (20) comprises high teeth (21), low teeth (22) and an interdental belt (23); the high teeth (21) and the low teeth (22) are arranged at intervals along the arc direction; the inter-tooth belt (23) connects the high teeth (21) and the low teeth (22); the crushing section (20) has a plane of symmetry perpendicular to the longitudinal direction, which divides the high teeth (21), the low teeth (22) and the inter-tooth belt (23) into two symmetrical parts, respectively.

2. A crusher toothed plate according to claim 1, characterized in that the high teeth (21) have a tooth height in the range 83-88mm; the tooth height range of the low teeth (22) is 60-70mm.

3. A crusher toothed plate according to claim 1, characterized in that the tooth width of the high teeth (21) and the tooth width of the low teeth (22) are identical; the height of the inter-tooth belt (23) does not exceed the tooth height of the low teeth (22); the width of the inter-tooth belt (23) is smaller than the tooth width of the low teeth (22).

4. A crusher toothed plate according to claim 1, characterized in that the arc of the breaking portion (20) in the arc direction is equal to the arc of the arched basic body (10) in the arc direction, the breaking portion (20) being provided with the inter-tooth belt (23) in the arc direction in positions where the high teeth (21) and the low teeth (22) are not provided.

5. A crusher tooth plate according to claim 1, characterized in that the low teeth (22) have hanging holes (221) thereon, the hanging holes (221) penetrating the low teeth (22) in the length direction.

6. A crusher toothed plate according to claim 1, characterized in that said high teeth (21) and said low teeth (22) each have a crushing surface (24), said crushing surfaces (24) being all arranged inclined in the same direction.

7. A crusher tooth plate according to claim 1, characterized in that the arc-shaped basic body (10) comprises a plurality of groups of threaded holes; one of the thread hole groups comprises a plurality of thread holes (11), and the thread holes (11) penetrate through the arc-shaped base body (10); in the length direction, each of the screw hole groups is distributed between every two of the crushing parts (20); the plurality of threaded holes (11) in one set of threaded holes are arranged at intervals along the direction of the circular arc.

8. A crusher tooth plate according to claim 1, characterized in that the arcuate base body (10) and the crushing section (20) are cast as a one-piece structure.

9. A crusher tooth plate according to claim 1, characterized in that the arc-shaped basic body (10) has an arc-shaped face (12), a bottom face (13) and two connecting faces (14); a plurality of said shredding sections (20) mounted on said arc-shaped face (12); the two connecting surfaces (14) are respectively connected with the bottom surface (13) and the two ends of the arc-shaped surface (12); the two connecting surfaces (14) are respectively perpendicular to the arc-shaped surfaces (12).

10. A crusher, comprising a first roller shaft, a second roller shaft, and a crusher tooth plate of any of claims 1 to 9; the first roller shaft and the second roller shaft are arranged in parallel, and the first roller shaft and/or the second roller shaft are/is rotatably arranged; the crusher toothed plates are uniformly distributed and installed on the outer peripheral surfaces of the first roll shaft and the second roll shaft respectively; the crushing parts (20) of two adjacent crusher toothed plates respectively mounted on the first and second roller shafts are arranged in a staggered manner.

11. The crusher of claim 10 wherein the rotational speed of the primary roller shaft is the same as the rotational speed of the secondary roller shaft, and wherein the rotational direction of the primary roller shaft is opposite to the rotational direction of the secondary roller shaft.