CN216062223U

CN216062223U - Filter and center tube, processing tool and engineering machinery thereof

Info

Publication number: CN216062223U
Application number: CN202122639680.XU
Authority: CN
Inventors: 黄浩
Original assignee: Suote Transmission Equipment Co Ltd
Current assignee: Suote Transmission Equipment Co Ltd
Priority date: 2021-10-29
Filing date: 2021-10-29
Publication date: 2022-03-18
Anticipated expiration: 2031-10-29

Abstract

The utility model provides a filter, a central pipe thereof, a processing tool and engineering machinery, wherein the central pipe comprises: the pipe body is formed by coiling a plate; the reinforcing structure is arranged in a ring shape and is arranged on the side wall of the pipe body along the circumferential direction of the pipe body; the first overflowing hole is arranged on the pipe body. In the structure, the sunken reinforcing structure plays a technical effect of the reinforcing ring, so that the compression strength of the cylinder is improved. Meanwhile, the concave reinforcing structure extending along the circumferential direction is easy and convenient to process, and the forming can be realized by adopting a rolling process without an additional welding procedure, so that the additional cost is not increased.

Description

Filter and center tube, processing tool and engineering machinery thereof

Technical Field

The utility model relates to the technical field of filter equipment, in particular to a filter, a central pipe, a machining tool and engineering machinery thereof.

Background

Filters are commonly used filtration devices in construction machinery. When oil passes through the filter, the filter material can block impurities in the oil and stick the impurities on the filter element, so that the filtering effect is realized. The filter generally comprises an end cap, a central tube, a filter material, an outer cylinder and the like. The central tube mainly plays the following roles: firstly, the axial supporting function is realized during the assembly of the filter, so that the axial deformation of the filter material is avoided; second, when the filter reaches service life, the central tube can support the radial deformation of the filter material due to the radial stress of the filter material caused by the increase of resistance.

The processing method of the central tube of the filter in the prior art mainly comprises the following steps: and after the plate is curled, hooking and pressing the plate, spirally winding the plate, curling and welding the plate, and adding a reinforcing ring in the inner welding process. In the first three processing modes, the center tube has the defect of low compressive strength, and the fourth processing mode can improve the compressive strength of the center tube, but has the defects of complex processing technology and high cost.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model aims to overcome the defects of low compressive strength, complex processing technology and high cost of the filter in the prior art, and provides the filter, the central tube thereof, the processing tool and the engineering machinery.

In order to solve the above problems, the present invention provides a center tube for a filter, comprising: the pipe body is formed by coiling a plate; the reinforcing structure is arranged in a ring shape and is arranged on the side wall of the pipe body along the circumferential direction of the pipe body; the first overflowing hole is arranged on the pipe body.

Optionally, the reinforcing structure is formed by a tube that is inwardly recessed.

Optionally, the cross section of the reinforcing structure is an arc surface, or a straight surface, or a combination of the arc surface and the straight surface.

Optionally, the reinforcing structure is a plurality of reinforcing structures, and the plurality of reinforcing structures are arranged in parallel along the axial direction of the pipe body.

Optionally, the first overflowing hole is a plurality of first overflowing holes distributed on two sides of the reinforcing structure.

Optionally, the sides of the tube are crimped and then welded together.

The utility model also provides a processing tool, which is suitable for processing the central tube, and comprises: a fixed cylinder for sleeving the pipe body; a press roller for rolling the pipe body; wherein, a female die or a male die is arranged on the fixed cylinder, and a corresponding male die or a female die is arranged on the press roll.

Optionally, a plurality of parallel female dies are arranged on the fixed cylinder, a plurality of parallel male dies are arranged on the compression roller, and the plurality of female dies and the plurality of male dies are arranged in a one-to-one correspondence manner.

The present invention also provides a filter comprising: the outer cylinder is provided with a second overflowing hole; the central tube is arranged in the outer barrel and is the central tube; the filter element is arranged in the outer barrel and sleeved outside the central pipe; and the end cover is arranged at the end part of the outer cylinder.

The utility model also provides engineering machinery comprising the filter.

The utility model has the following advantages:

by utilizing the technical scheme of the utility model, the side wall of the cylinder body is provided with the concave reinforcing structure, and the concave reinforcing structure has the technical effect of a reinforcing ring, so that the compression strength of the cylinder body is improved. Meanwhile, the concave reinforcing structure extending along the circumferential direction is easy and convenient to process, and the forming can be realized by adopting a rolling process without an additional welding procedure, so that the additional cost is not increased. Therefore, the technical scheme of the utility model overcomes the defects of low compressive strength, complex processing technology and high cost of the filter in the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 shows a schematic of the construction of the center tube of the filter of the present invention;

FIG. 2 shows a side view of the base pipe of FIG. 1;

FIG. 3 shows a schematic expanded view of the center tube of FIG. 1;

FIG. 4 shows a schematic representation of a different form of the reinforcing structure of the base pipe of FIG. 1;

FIG. 5 shows a schematic view of the tooling of the present invention; and

fig. 6 shows a schematic view of the filter of the present invention.

Description of reference numerals:

10. a pipe body; 20. a reinforcing structure; 30. a first overflow aperture; 100. a fixed cylinder; 200. a compression roller; 300. a female die; 400. a male die; 500. an outer cylinder; 501. a second overflowing hole; 600. a central tube; 700. a filter element; 800. and (4) end covers.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

As shown in fig. 1, the center tube of the filter of the present embodiment includes a tube body 10, a reinforcing structure 20, and a first overflowing hole 30. Wherein, the pipe body 10 is formed by bending and connecting the side edges of the plate. The reinforcing structure 20 is provided on the sidewall of the pipe body 10, and the reinforcing structure 20 extends in the circumferential direction of the pipe body 10. The first overflowing hole 30 is provided in the pipe body 10.

By using the technical scheme of the embodiment, the side wall of the pipe body 10 is provided with the reinforcing structure 20, and the reinforcing structure 20 has the technical effect of a reinforcing ring, so that the compressive strength of the pipe body 10 is improved. Meanwhile, the reinforcing structure 20 extending along the circumferential direction is easy and convenient to process, and can be formed by a rolling process without an additional welding procedure, so that additional cost is not increased. Therefore, the technical scheme of the embodiment overcomes the defects of low compressive strength, complex processing technology and high cost of the filter in the prior art.

As shown in fig. 1, in the solution of the present embodiment, the reinforcing structure 20 is recessed towards the inside of the tubular body 10. Specifically, the above structure enables the filter material to be tightly attached to the outer side wall of the pipe 10 in the subsequent assembly, thereby improving the filtering effect.

Of course, in some embodiments, not shown, the reinforcing structure 20 can also be a structure that protrudes with respect to the outside of the tubular body 10. The direction of the concavity of the reinforcing structure 20 can be chosen by the person skilled in the art according to the actual working requirements.

As shown in fig. 1, in the solution of the present example, the reinforcing structure 20 is a ring-shaped structure. Specifically, the reinforcing structure 20 is an annular structure extending along the circumferential direction of the pipe body 10, and this arrangement can provide the effect of reinforcing the pressure-resistant strength of the pipe body 10 by the reinforcing structure 20 in the entire circumferential direction. And the annular structure is convenient to process and can be formed by a rolling process, so that the production difficulty is greatly reduced.

Of course, in some embodiments not shown, the reinforcing structure 20 may not be a ring-shaped structure.

As shown in fig. 4, in the solution of the present embodiment, the side wall of the reinforcing structure 20 is an arc surface, or a straight surface, or a combination of the arc surface and the straight surface. In particular, as can be seen in connection with fig. 3, the cross-sectional shape of the reinforcing structure 20 may be spherical cap, arc, triangular, trapezoidal, square. Alternatively, the cross-sectional shape of the reinforcing structure 20 may be an irregular shape composed of straight sides, or may be an irregular shape composed of curved sides, or may be an irregular shape composed of a combination of curved sides and straight sides. And the side walls of the reinforcing structure 20 may be provided with rounded chamfers.

As shown in fig. 1, in the present embodiment, there are a plurality of reinforcing structures 20, and the plurality of reinforcing structures 20 are arranged in parallel along the axial direction of the pipe body 10. Specifically, in the present embodiment, a plurality of annular reinforcing structures 20 are provided, the plurality of reinforcing structures 20 are evenly spaced, and the plurality of reinforcing structures 20 are arc-parallel to each other. Further, the number of the reinforcing structures 20 and the distance between the adjacent reinforcing structures 20 may be set by those skilled in the art according to the actual working environment.

As shown in fig. 3, in the solution of the present embodiment, the number of the first overflowing holes 30 is multiple, and the multiple first overflowing holes 30 are distributed on two sides of the reinforcing structure 20. Specifically, the portion provided with the reinforcing structure 20 is not provided with the first overflowing hole 30, thereby ensuring the overall strength of the pipe body 10. The specific number and arrangement of the first overflowing holes 30 can be adjusted by those skilled in the art according to actual needs.

As shown in fig. 2, in the technical solution of this embodiment, the side edges of the pipe 10 are bent and then connected together by welding. Particularly, after the plate is bent, two sides of the plate are welded in an overlapping mode, and then the pipe body is made to form a hollow cylindrical structure with two openings at two ends.

As shown in fig. 5, the present embodiment further provides a processing tool, the processing tool is suitable for processing the central tube, and the processing tool includes a fixed cylinder 100 and a pressing roller 200. Wherein, the fixed cylinder 100 is adapted to be inserted into the tube 10. The pressing roller 200 is disposed in parallel with the fixed cylinder 100. Further, one of the fixed cylinder 100 and the pressing roller 200 is provided with a female die 300, and the other is correspondingly provided with a male die 400, so that when the pressing roller 200 presses the outer surface of the pipe body 10, the reinforcing structure 20 is formed on the surface of the pipe body 10.

Specifically, in this embodiment, the fixing cylinder 100 is fixedly disposed, and the plate is bent and welded to be sleeved outside the fixing cylinder 100. The pressing roller 200 can be rotated and moved toward and away from the fixed cylinder 100 by an external mechanism (not shown), and the pressing roller 200 serves to press the outer surface of the pipe body 10. When the pressing roller 200 presses the outer surface of the pipe body 10, the reinforcing structure 20 may be formed at the sidewall of the pipe body 10 by the male mold 400 and the female mold 300.

Further, since the reinforcing structure 20 in the present embodiment is a structure recessed toward the inside of the tube body 10, the female mold 300 is provided on the stationary barrel 100, and the male mold 400 is provided on the press roller 200. Of course, the specific positions of the female die 300 and the male die 400 can be reversed.

Further, the fixed cylinder 100 is provided with a plurality of female dies 300, the plurality of female dies 300 are arranged in parallel, the press roller 200 is provided with a plurality of male dies 400, and the plurality of male dies 400 are arranged in parallel. The plurality of female molds 300 and the plurality of male molds 400 are disposed in one-to-one correspondence.

Preferably, the shapes of the female die 300 and the male die 400 are adapted, and the reinforcing structure 20 can be formed into various shapes as shown in fig. 4 by adjusting the specific shapes of the female die 300 and the male die 400.

As shown in fig. 6, the present embodiment also provides a filter. The filter includes an outer tub 500, a center pipe 600, a filter element 700, and an end cap 800. Wherein, the outer cylinder is provided with a second overflowing hole 501. The center pipe 600 is disposed in the outer tub 500, and the center pipe 600 is the above-described center pipe. The filter element 700 is disposed in the outer tub 500 and is sleeved outside the center tube 600. The end cap 800 is provided at the end of the outer tub 500.

Specifically, the number of the end caps 800 in the present embodiment is two, and includes an upper end cap (located on the right side in fig. 6) and a lower end cap (located on the left side in fig. 6). Wherein, the inner side of the upper end cover is provided with a bypass valve. The outer tube 500 and the center tube 600 are made of a material having high corrosion resistance (e.g., galvanized steel or stainless steel). A plurality of second overflowing holes 501 and first overflowing holes 30 are provided in substantially the entire areas of the outer cylinder 500 and the center pipe 600, respectively. The second overflowing hole 501 communicates the outside with the inside of the outer cylinder 500, and the first overflowing hole 30 communicates the outside with the inside of the center pipe 600. The filter element 700 is a substantially hollow cylindrical member formed by folding a sheet-shaped filter paper made of synthetic resin, paper, or the like in a pleated manner and connecting both ends of the folded filter paper. The height of the filter cartridge 700 is approximately the same as the height of the center tube 600. Oil passes through the filter cartridge 700 from the outside to the inside. At this time, impurities (contaminants, impurities, etc.) in the liquid are removed by the filter medium. The liquid passing through the inside of the filter element 700 flows out to the inside of the center tube 600 through the first overflowing hole 30 formed in the center tube 600. End caps 800 are provided at both ends of the outer tube 500, the center tube 600, and the filter element 700. The end cap 800 is a member having a substantially cylindrical shape with a bottom. A bypass valve is arranged on the upper end cover. When the filter element 700 is blocked, under the action of the internal and external pressure difference, the unfiltered oil jacks up the valve core of the bypass valve, directly enters the filter element 700 through the bypass valve and flows out of the lower end cover. In addition, a gasket is provided on the lower end cap for sealing.

The embodiment also provides the engineering machinery, and the engineering machinery comprises the filter.

According to the above description, the present patent application has the following advantages:

the utility model provides a center tube compressive strength is high, compares with the center tube of internal weld reinforcement ring, and part quantity is few, and processing man-hour is short, and the cost of manufacture is low, and the preparation is simple and convenient.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the utility model.

Claims

1. A center tube for a filter, comprising:

a tubular body (10), the tubular body (10) being formed by crimping a sheet material;

a reinforcing structure (20) which is arranged in a ring shape, and the reinforcing structure (20) is arranged on the side wall of the pipe body (10) along the circumferential direction of the pipe body (10);

a first overflowing hole (30) is arranged on the pipe body (10).

2. A central pipe according to claim 1, characterized in that the reinforcing structure (20) is formed by an inward recess of the pipe body (10).

3. The base pipe according to claim 1, characterized in that the cross-section of the reinforcing structure (20) is an arc-shaped surface, or a straight surface, or a combination of an arc-shaped surface and a straight surface.

4. A base pipe according to any one of claims 1 to 3, wherein said reinforcing structure (20) is plural, and plural reinforcing structures (20) are arranged in parallel in the axial direction of said pipe body (10).

5. A central tube according to any of claims 1-3, characterized in that the first flow holes (30) are plural, the plural first flow holes (30) being distributed on both sides of the reinforcing structure (20).

6. A central pipe according to any of claims 1 to 3, characterized in that the sides of the pipe body (10) are crimped and then joined together by welding.

7. A machining tool, characterized in that the machining tool is adapted to machine a central tube according to any one of claims 1 to 6, the machining tool comprising:

a fixed cylinder (100) for sleeving the pipe body (10);

a pressing roller (200) for pressing the tube (10);

the fixed cylinder (100) is provided with a female die (300) or a male die (400), and the pressing roller (200) is provided with a corresponding male die (400) or a corresponding female die (300).

8. The processing tool according to claim 7, characterized in that a plurality of parallel female dies (300) are arranged on the fixed cylinder (100), a plurality of parallel male dies (400) are arranged on the compression roller (200), and the plurality of female dies (300) and the plurality of male dies (400) are arranged in a one-to-one correspondence manner.

9. A filter, comprising:

the outer cylinder (500), wherein a second overflowing hole (501) is formed in the outer cylinder (500);

a center tube (600) disposed within the outer cartridge (500), the center tube (600) being the center tube of any one of claims 1 to 6;

the filter element (700) is arranged in the outer barrel (500) and sleeved outside the central tube (600);

and an end cap (800) provided at an end of the outer tube (500).

10. A working machine, characterized by comprising a filter according to claim 9.