CN113198586A

CN113198586A - Novel crushing tooth

Info

Publication number: CN113198586A
Application number: CN202110662895.5A
Authority: CN
Inventors: 潘永泰; 刘振; 姚福强; 曲占江
Original assignee: Taiboke Tianjin Machinery Device Co ltd
Current assignee: Taiboke Tianjin Machinery Device Co ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2021-08-03

Abstract

The invention provides a novel crushing tooth which comprises a tooth holder, a tooth cap and a back plate, wherein the tooth cap is detachably connected with the tooth holder, the back plate is connected with the tooth cap, and the back plate is used for preventing the tooth cap from falling off from the tooth holder. The invention has the beneficial effects that: the crushing tooth cap and the tooth seat are matched in a three-plane matching mode, so that the contact tightness is ensured, the bearing performance is optimized, the tooth cap is ensured not to fall off, and the reliability is greatly increased; the structure of a connecting bolt hole is eliminated by crushing the tooth cap and the tooth seat, the weak point of the structure is eliminated, and the structural strength is enhanced; the types of spare parts are reduced, the maintenance quantity of the parts is reduced, the maintenance time of the equipment is saved, and the maintenance cost of the equipment is greatly reduced; the structure is disassembled without special tools, the disassembly and assembly environment is free from requirements, and time and labor are saved.

Description

Novel crushing tooth

Technical Field

The invention belongs to the field of crushing equipment, and particularly relates to a novel crushing tooth.

Background

The toothed roller crusher is a crushing device widely applied to the less than medium-hard minerals such as coal, limestone, alumina, shale, clay and bauxite, and is also applied to the aspects of building garbage recovery and solid waste resource utilization in recent years. The gear roller crusher generally comprises a driving part, a crushing roller assembly and a cavity structural part, wherein the driving part is divided into hydraulic driving at present, a motor is in a speed reducer driving mode, and the motor is in a belt wheel driving mode, the crushing roller assembly is a main part of equipment, a core part of the crushing roller assembly is a crushing tooth, the crushing roller assembly is composed of a plurality of crushing teeth, during crushing operation, the crushing teeth are in direct contact with materials, the quality of the structure and the quality of the materials directly determine the quality of the crushing equipment, the crushing teeth are subjected to impact force and friction force of the materials under high-strength continuous operation, breakage and abrasion easily occur, the discharged material granularity cannot meet the granularity requirement, timely maintenance and replacement are needed, the crushing teeth serve as quick-wear parts, and the maintenance efficiency directly influences the maintenance and production efficiency of the system.

At present, a toothed plate tooth seat structure, a tooth cap tooth seat structure and an integral crushing tooth structure of a common crushing tooth are adopted. The pinion rack structure is mostly bolted connection at present with the tooth cap structure, the broken tooth of pinion rack toothholder structure is the plane contact, the reliability depends on fastening bolt completely, the broken tooth of toothholder structure is many curved surfaces contacts, hardly guarantee that tooth cap toothholder contact surface reaches the ideal condition, so bolted connection's broken tooth no matter is pinion rack structure or toothholder structure, many because the composition surface is unsatisfactory, the atress is relatively poor, the bolt easily becomes flexible to drop, cause broken tooth to drop and lose, after broken tooth uses a period, this phenomenon is more obvious. The bolts need to be overhauled and replaced every team of maintenance teams, the workload is large, the bolt consumption is large, and the reliability of the broken teeth and the equipment maintenance cost are greatly reduced no matter the broken teeth or the bolt holes added on the broken tooth holder are increased; whole broken tooth structure passes through the key-type connection and is fixed with the main shaft, need pull down the broken tooth of damage one by one when broken tooth is changed, pulls down the bearing assembly simultaneously and changes again, and is consuming time hard, needs professional equipment and expense high.

Disclosure of Invention

In view of the above, the present invention is directed to a novel crushing tooth to solve the above-mentioned problems.

In order to achieve the purpose, the technical scheme of the invention is realized as follows:

the utility model provides a novel broken tooth, includes toothholder, tooth cap and backplate, and the tooth cap can be dismantled with the toothholder and be connected, and the backplate is connected with the tooth cap, and the backplate is used for preventing that the tooth cap from droing from the toothholder.

Furthermore, the gear box further comprises a main shaft for transmission, and a key groove matched with the main shaft is formed in the gear seat.

Furthermore, the tooth holder is connected with the tooth cap through a guiding and positioning structure, and the tooth cap is installed on the tooth holder through the guiding and positioning structure.

Further, the guiding and positioning structure comprises a dovetail sliding groove and a dovetail sliding block.

Furthermore, the guiding and positioning structure comprises a trapezoidal sliding groove and a trapezoidal sliding block.

Furthermore, the inside of the tooth cap is provided with an installation groove, and the tooth holder is provided with a corresponding installation lug;

one side of the mounting groove is provided with an opening, and the mounting groove of the tooth cap is sleeved on the mounting lug through the opening.

Furthermore, a corresponding positioning piece is arranged between the tooth cap and the tooth holder, and the positioning key comprises a boss and a groove which are arranged on the tooth cap and the tooth holder;

be provided with the retaining member on the setting element, the retaining member is used for fixed boss and recess.

Further, the backplate setting is in being close to mounting groove opening one side of tooth cap for the cooperation mounting groove lateral wall will install the lug parcel in the mounting groove.

Further, the backplate includes connecting portion and clamping part, and the backplate passes through connecting portion and is connected with the tooth cap, and the backplate passes through the clamping part and blocks adjacent tooth cap.

Further, the root of the installation lug of the tooth holder is provided with an arc-shaped groove.

Compared with the prior art, the novel crushing tooth has the following beneficial effects:

1. the crushing tooth cap and the tooth seat are matched in a three-plane matching mode, so that the contact tightness is ensured, the bearing performance is optimized, the tooth cap is ensured not to fall off, and the reliability is greatly increased;

2. the structure of a connecting bolt hole is eliminated by crushing the tooth cap and the tooth seat, the weak point of the structure is eliminated, and the structural strength is enhanced;

3. the types of spare parts are reduced, the maintenance quantity of the parts is reduced, the maintenance time of the equipment is saved, and the maintenance cost of the equipment is greatly reduced;

4. the structure is disassembled without special tools, the disassembly and assembly environment is free from requirements, and time and labor are saved.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 is a schematic overall perspective view of a novel crushing tooth according to an embodiment of the present invention;

FIG. 2 is a schematic cross-sectional view of a novel crushing tooth according to an embodiment of the present invention;

FIG. 3 is a perspective view of a novel crush tooth removal cap in accordance with an embodiment of the present invention;

FIG. 4 is a schematic side view of a novel crush tooth removal cap in accordance with an embodiment of the present invention;

FIG. 5 is a schematic front perspective view of a novel crush tooth cap in accordance with an embodiment of the present invention;

FIG. 6 is a perspective view of the back of a novel crushing tooth cap according to an embodiment of the present invention;

FIG. 7 is a schematic front side view of a novel crushing tooth cap according to an embodiment of the present invention;

FIG. 8 is a schematic diagram illustrating the location of a new type of adjacent tooth cap seized by the back plate of the crushing tooth in accordance with an embodiment of the present invention;

fig. 9 is a schematic view of a back plate structure according to an embodiment of the invention.

Description of reference numerals:

1-a tooth holder; 11-a keyway; 12-mounting a bump; 13-arc groove; 14-a groove; 2-a gear cap; 21-mounting grooves; 211-an opening; 22-a locking member; 23-a reinforcement; 24-a boss; 3-a back plate; 31-a connecting portion; 32-clamping part.

Detailed Description

It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

As shown in fig. 1 to 9, the crushing roller structure comprises three parts, namely a crushing toothholder 1, crushing teeth and a back plate 3, wherein the crushing toothholder 1 is of a polygonal structure, 2-16 polygons can be selected according to different working conditions of equipment, the crushing toothholder 1 is connected with a main shaft through a flat key or a spline, a crushing toothcap 2 is in plane contact with the bottom surface of the crushing toothholder 1, an inner cavity is in two-inclined-plane contact, huge impact in the crushing process is effectively borne, and the reliability of the toothcap 2 is ensured.

When the crushing tooth cap is used, the crushing tooth caps 2 are sequentially arranged in the crushing tooth seats 1 along the circumference, the back plates 3 are welded with the crushing tooth caps 2, so that the crushing tooth caps 2 and the back plates 3 form a closed cavity matched with the crushing tooth seats 1, and the tail parts of the back plates 3 and the corresponding tooth caps 2 are connected to the adjacent tooth caps 2 after being positioned, so that the tooth caps 2 along the circumference form a closed ring. The inner cavity of the crushing tooth cap 2 is matched with the crushing tooth holder 1 in an inverted trapezoid or dovetail shape, so that the crushing tooth is firm and reliable in structure.

The round bottom of the tooth root behind the crushing tooth holder 1 is in a concave arc shape, so that the tooth cap 2 is convenient to cut and clean when being detached. A boss 24 is reserved on the inner side of the cavity of the crushing tooth cap 2, a groove 14 is reserved at the position corresponding to the crushing tooth holder 1, and the boss 24 is matched with the groove 14, so that the assembling accuracy is improved.

In the use, backplate 3 is the wearing and tearing piece with broken tooth, and the degree of wear is equivalent, and 3 wearing and tearing of backplate are when certain degree, and tooth cap 2 also need change, and available oxygen acetylene or cutting machine cut open along tooth cap 2 junction, cuts open the back completely, takes out tooth cap 2 with jackscrew in proper order at tooth cap 2 jackscrew hole, changes new part.

In a specific implementation process, as shown in fig. 1, which is an integrally assembled picture of the device, fig. 2 is a cross-sectional view, the tooth cap 2 is firstly sleeved on the tooth holder 1, then the connecting portion 31 of the back plate 3 is connected with the tooth cap 2, preferably, welding is adopted, so that the tooth cap 2 is fixed on the tooth holder 1, the back plate 3 comprises the connecting portion 31 and the clamping portion 32, the connecting portion 31 is used for being connected with the tooth cap 2, the clamping portion 32 is used for clamping the adjacent tooth cap 2, and a specific clamping portion 32 is shown in fig. 8.

In fig. 6 and 7, reference numeral 22 is a locking member 22, and in practical application, holes can be formed at the positions of reference numeral 22 in the drawings, and then jackscrews are arranged for realizing fixation.

The tooth cap 2 is also provided with a reinforcement 23 for overcoming stress.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A novel crushing tooth is characterized in that: including toothholder (1), tooth cap (2) and backplate (3), tooth cap (2) can be dismantled with toothholder (1) and be connected, and backplate (3) are connected with tooth cap (2), and backplate (3) are used for preventing that tooth cap (2) from droing from toothholder (1).

2. A novel crushing tooth as claimed in claim 1, wherein: the gear seat (1) is provided with a key groove (11) matched with the main shaft.

3. A novel crushing tooth as claimed in claim 1, wherein: the tooth holder (1) is connected with the tooth cap (2) through a guiding and positioning structure, and the tooth cap (2) is arranged on the tooth holder (1) through the guiding and positioning structure.

4. A novel crushing tooth as claimed in claim 3, wherein: the guide positioning structure comprises a dovetail sliding groove and a dovetail sliding block.

5. A novel crushing tooth as claimed in claim 3, wherein: the guiding and positioning structure comprises a trapezoidal sliding groove and a trapezoidal sliding block.

6. A novel crushing tooth as claimed in claim 1, wherein: the tooth cap (2) is internally provided with a mounting groove (21), and the tooth holder (1) is provided with a corresponding mounting lug (12);

one side of the mounting groove (21) is provided with an opening (211), and the mounting groove (21) of the gear cap (2) is sleeved on the mounting lug (12) through the opening (211).

7. A novel crushing tooth according to any one of claims 3 or 6, characterized in that: a corresponding positioning piece is also arranged between the tooth cap (2) and the tooth holder (1), and the positioning key comprises a boss (24) and a groove (14) which are arranged on the tooth cap (2) and the tooth holder (1);

a locking piece (22) is arranged on the positioning piece, and the locking piece (22) is used for fixing the boss (24) and the groove (14).

8. The novel crushing tooth according to claim 6, wherein: the back plate (3) is arranged on one side, close to the opening (211) of the mounting groove (21), of the gear cap (2) and used for being matched with the side wall of the mounting groove (21) to wrap the mounting lug (12) in the mounting groove (21).

9. The novel crushing tooth according to claim 7, wherein: the back plate (3) comprises a connecting part (31) and a clamping part (32), the back plate (3) is connected with the tooth caps (2) through the connecting part (31), and the back plate (3) clamps the adjacent tooth caps (2) through the clamping part (32).

10. The novel crushing tooth according to claim 6, wherein: the root of the mounting lug (12) of the tooth holder (1) is provided with an arc-shaped groove (13).