CN113618335B

CN113618335B - Method for machining sieve teeth

Info

Publication number: CN113618335B
Application number: CN202110903880.3A
Authority: CN
Inventors: 郭思贝
Original assignee: Sichuan Province Bojun Machinery Manufacturing Co ltd
Current assignee: Sichuan Province Bojun Machinery Manufacturing Co ltd
Priority date: 2021-08-06
Filing date: 2021-08-06
Publication date: 2022-09-30
Anticipated expiration: 2041-08-06
Also published as: CN113618335A

Abstract

The invention relates to the technical field of sieve tooth manufacturing, and discloses a sieve tooth processing method which comprises the following steps: splicing the plurality of screening tooth units into a screening tooth ring, wherein the tooth tips of the screening tooth ring are consistent in height; processing a first side surface of the sieve gear ring into a plane as a reference surface; and turning over the screen gear ring, and processing the second side surface of the screen gear ring into a plane based on the reference surface. The invention solves the problem that the dislocation of teeth is easy to occur in the assembling and processing process of the prior sieve teeth.

Description

Method for machining sieve teeth

Technical Field

The invention relates to the technical field of sieve tooth manufacturing, in particular to a sieve tooth processing method.

Background

The crusher is widely applied to the fields of mines, smelting and the like, wherein the toothed roll crusher is used as a common crushing device, and the working principle of the toothed roll crusher is to shear and extrude materials through the interaction between toothed rolls so as to crush the materials. Therefore, for a toothed roll crusher, its equipment performance is mainly determined by its toothed roll mass.

The toothed roller is generally formed by stacking and splicing a plurality of circular screen toothed rings, and the screen toothed rings are circular structures formed by encircling and combining a plurality of screen tooth units. In the assembling process of the toothed roller, the tooth tips of all the screen teeth need to be parallel and consistent, and the toothed roller formed in the way has good crushing performance. However, in the existing screen tooth processing and manufacturing process, the single screen tooth units are subjected to plane processing through a milling machine, although the thickness dimension of the screen tooth units can be ensured, the tooth tips of the screen tooth units cannot be consistent, each screen tooth unit needs to be screened and matched during assembly, the workload is large, and the phenomenon of tooth-to-tooth dislocation is easy to occur.

Disclosure of Invention

Based on the technical problems, the invention provides a sieve tooth processing method, which solves the problem that teeth are easy to dislocate in the existing sieve tooth assembling and processing process.

In order to solve the technical problems, the technical scheme adopted by the invention is as follows:

a method of machining a screen tooth comprising:

splicing the plurality of screening tooth units into a screening tooth ring, wherein the tooth tips of the screening tooth ring are consistent in height;

processing a first side surface of the sieve gear ring into a plane as a reference surface;

and turning over the screen gear ring, and processing the second side surface of the screen gear ring into a plane based on the reference surface.

Further, splice into the sieve ring with a plurality of sieve tooth units includes:

a plurality of sieve tooth units surround into a circle, and the tooth tips of the sieve tooth units keep the same height;

and flattening the circle and welding and positioning the butt joint between the sieve tooth units.

Further, spot welding is adopted for welding.

Further, the circles determine concentricity by the tooth tips.

Further, the first side and the second side are formed by vertical lathe machining.

Further, the sieve tooth unit is formed by casting.

Compared with the prior art, the invention has the beneficial effects that:

according to the invention, the screen tooth units are spliced and welded into a whole and then subjected to plane processing, so that the screen tooth tips can be kept consistent in the splicing process, and the plane is processed to ensure that the thickness of the screen tooth is consistent, so that the processed screen tooth can meet the assembly and manufacturing requirements of the toothed roller, the problem of staggered teeth is avoided, and the processing efficiency and the processing quality of the screen tooth are improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without limiting the invention. Wherein:

FIG. 1 is a schematic flow chart of a method for processing a screen tooth.

Fig. 2 is a schematic view of a screen ring structure.

Fig. 3 is a right side view of fig. 2.

Wherein, 1 sieve ring gear, 2 first sides, 3 second sides.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present disclosure more apparent, the technical solutions of the embodiments of the present disclosure will be described clearly and completely with reference to the drawings of the embodiments of the present disclosure. It is to be understood that the described embodiments are only a few embodiments of the present disclosure, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the described embodiments of the disclosure without any inventive step, are within the scope of protection of the disclosure.

Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The directional or positional relationships indicated by "upper", "lower", "left", "right", etc., are based on the directional or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and thus should not be construed as limiting the scope of the present invention.

Referring to fig. 1, in the present embodiment, a method of processing a screen tooth includes:

s101, splicing a plurality of screen tooth units into a screen gear ring 1, wherein the tooth tips of the screen gear ring 1 are consistent in height;

specifically, splice into sieve ring gear 1 with a plurality of sieve tooth units and include: a plurality of sieve tooth units surround into a circle, and the tooth tips of the sieve tooth units keep the same height; and flattening the circle and welding and positioning the butt joint between the sieve tooth units.

Wherein, sieve tooth unit can with make up at will, need not the screening and mate, can effectively reduce the screening time from this, improve the working efficiency.

Preferably, the welding is spot welding. Spot welding is a welding method in which a welding spot is formed between the contact surfaces of two overlapped workpieces by using a columnar electrode during welding. During spot welding, the workpiece is pressed to be in close contact with the workpiece, then current is switched on, the contact position of the workpiece is melted under the action of resistance heat, and a welding spot is formed after cooling. Wherein, the heating time of the connecting area is very short during spot welding, and the welding speed is high; spot welding consumes only electric energy and does not require filler materials or flux, gas, etc.; the spot welding quality is mainly guaranteed by a spot welding machine. Simple operation, high mechanization and automation degree, high productivity, low labor intensity and good labor condition.

Preferably, the circle is concentric through the tooth point to guarantee that screen ring gear 1 after the shaping is circular structure.

S101, processing a first side surface 2 of the sieve gear ring 1 into a plane as a reference surface;

s101, turning over the screen gear ring 1, and processing the second side surface 3 of the screen gear ring 1 into a plane based on the reference surface.

Preferably, the first side 2 and the second side 3 are formed by vertical lathe machining. The axis of the vertical lathe spindle is vertically arranged, and the table surface of the workbench is in a horizontal plane, so that the workpiece is convenient to clamp and align. The layout reduces the load of the main shaft and the bearing, so that the vertical lathe can keep the working precision for a long time. The device is convenient for processing large and heavy workpieces with large radial dimension, relatively small axial dimension and complex shapes, such as cylindrical surfaces, end surfaces, conical surfaces, cylindrical holes, conical holes and the like of various disc, wheel and sleeve workpieces. Therefore, the screen ring gear 1 is machined by the vertical lathe, the machining efficiency is higher, and the workpiece machining precision is higher.

As can be seen from fig. 2, the sieve tooth ring 1 is formed by combining a plurality of sieve tooth units, in the conventional processing manner, two side surfaces of a single sieve tooth unit are subjected to plane processing, and after the processing is completed, the sieve tooth ring 1 is assembled into the sieve tooth ring. However, in the actual processing process, it is found that although the thickness of the processed screen ring gear 1 can be ensured, the tooth tips of each screen tooth unit cannot be kept consistent, and the screen ring gear is assembled into the screen ring gear 1, so that the phenomenon of tooth dislocation is easily caused, and the assembly and forming of the subsequent toothed rollers are also influenced.

In this embodiment, the screen tooth unit is spliced and welded to be a whole and then is subjected to plane machining, so that the screen tooth tips can be kept consistent in the splicing process, and the plane is machined to ensure that the thickness of the screen tooth unit is consistent, so that the thickness and the tooth tip position of the machined screen tooth ring 1 can meet the assembly and manufacturing requirements of the toothed roller, the problem of staggered teeth is avoided, and the machining efficiency and the machining quality of the screen teeth are improved.

In some embodiments, the tooth unit is formed by casting.

Wherein, the sieve tooth unit is through the casting shaping, and machining efficiency is high, and the shaping is fast.

The above is an embodiment of the present invention. The embodiments and specific parameters thereof are only used for clearly illustrating the verification process of the invention and are not used for limiting the scope of the invention, which is defined by the appended claims, and all equivalent structural changes made by using the contents of the specification and the drawings of the present invention should be covered by the scope of the present invention.

Claims

1. A method of machining a screen tooth, comprising:

splicing the plurality of screen tooth units into a screen gear ring, wherein the tooth tips of the screen gear ring are consistent in height;

turning over the screen gear ring, and processing a second side surface of the screen gear ring into a plane based on the reference surface;

wherein, splice into the sieve ring with a plurality of sieve tooth units and include:

2. A method of machining a screen tooth according to claim 1, wherein:

the welding adopts spot welding.

3. A method of machining a screen tooth according to claim 1, wherein:

the circles determine concentricity through the tip of the tooth.

4. A method of machining a screen tooth according to claim 1, wherein:

the first side and the second side are formed by vertical lathe machining.

5. A method of machining a screen tooth according to claim 1, wherein:

the sieve tooth unit is formed by casting.