CN217067914U

CN217067914U - Special filter core of hydraulic system before pump

Info

Publication number: CN217067914U
Application number: CN202220848705.9U
Authority: CN
Inventors: 杨学明; 杨诚瑞
Original assignee: Xinxiang Tianrui Hydraulic Equipment Co ltd
Current assignee: Xinxiang Tianrui Hydraulic Equipment Co ltd
Priority date: 2022-04-13
Filing date: 2022-04-13
Publication date: 2022-07-29
Anticipated expiration: 2032-04-13

Abstract

The utility model discloses a special filter core of hydraulic system before pump, which comprises an outer shell, the top outer wall integrated into one piece of shell has the connecting cylinder, the inside of shell is provided with outer metal mesh, the top welding of outer metal mesh has the upper end cover, the bottom outer wall welding of outer metal mesh has the lower extreme, the inside of outer metal mesh is provided with interior metal mesh, be provided with filter paper between interior metal mesh and the outer metal mesh, the inner wall and the outer wall of filter paper all are provided with evenly distributed's fold, the outer wall welding of interior metal mesh has the ball of cutting apart that is central symmetric distribution, cut apart the inside that the ball is located the fold of filter paper. The utility model discloses an outer metal mesh, interior metal mesh that set up and cut apart the ball, utilize the outside welded fold of cutting apart the ball of interior metal mesh to support the filter paper for the fold of filter paper can keep fixed interval, has consequently realized the effect that filter core filtration efficiency is high.

Description

Special filter core of hydraulic system before pump

Technical Field

The utility model relates to a hydraulic system technical field, concretely relates to special filter core of hydraulic system before pump.

Background

The filter element is a filtering device, can be applied to a hydraulic oil circuit of a hydraulic system for removing metal powder and other mechanical impurities generated by abrasion of various elements, and is usually arranged at the front end of a hydraulic pump to keep the oil circuit clean, so that the service life of the hydraulic system is prolonged.

The Chinese patent application number 202022484507.2 relates to a filter element for a hydraulic system, which effectively solves the problems of high replacement cost, easy cover falling failure and filter element layer impact failure of the existing product; the filter element comprises an upper end cover, a supporting cylinder, a lower end cover, a filter element layer and a lower end cover, wherein the upper end cover is fixedly connected with the supporting cylinder, the other end of the supporting cylinder is fixedly connected with the lower end cover, and the filter element layer is fixed on the outer side of the supporting cylinder between the upper end cover and the lower end cover.

Above-mentioned and hydraulic system filter core before pump among the prior art when using, the fold of the inside filter paper of filter core can't keep fixed interval under the pressure of hydraulic oil, leads to the filtration efficiency of filter core to reduce, and the equipment is inconvenient during filter core production, leads to the production efficiency of filter core to reduce. Therefore, it is desirable to design a filter element dedicated to a hydraulic system before a pump to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a special filter core of hydraulic system before pump to solve the above-mentioned weak point among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions: the utility model provides a special filter core of hydraulic system before pump, includes the shell, the top outer wall integrated into one piece of shell has the connecting cylinder, the inside of shell is provided with outer metal mesh, the top welding of outer metal mesh has the upper end cover, the bottom outer wall welding of outer metal mesh has the lower extreme, the inside of outer metal mesh is provided with interior metal mesh, be provided with filter paper between interior metal mesh and the outer metal mesh, the inner wall and the outer wall of filter paper all are provided with evenly distributed's fold, the outer wall welding of interior metal mesh has the ball of cutting apart that is central symmetric distribution, cut apart the inside that the ball is located the fold of filter paper.

Preferably, the top outer wall of the upper end cover is integrally formed with a threaded ring, and the threaded ring is in threaded connection with the connecting cylinder.

Preferably, a fixing ring is arranged between the filter paper and the outer metal net, and a matching groove matched with the filter paper is formed in the inner wall of the fixing ring.

Preferably, a sealing ring is sleeved outside the outer metal net and is matched with the connecting cylinder.

Preferably, the top outer wall integrated into one piece of upper end cover has the feed liquor pipe, the outside of feed liquor pipe has cup jointed the upper seal ring, integrated into one piece has the connecting plate between screw ring and the feed liquor pipe.

Preferably, the outer wall of the bottom of the shell is integrally formed with a liquid outlet pipe, and a lower sealing ring is sleeved outside the liquid outlet pipe.

Preferably, the outer wall of both sides of connecting cylinder integrated into one piece has the mounting panel, the bottom outer wall of mounting panel is opened there is the fixed orifices.

In the technical scheme, the utility model provides a pair of special filter core of hydraulic system before pump, beneficial effect is: (1) the outer metal net, the inner metal net and the segmentation balls are arranged, and the segmentation balls welded outside the inner metal net are used for supporting the folds of the filter paper, so that the folds of the filter paper can keep a fixed interval, and the effect of high filter efficiency of the filter element is realized; (2) through the arrangement of the threaded ring, the sealing ring and the connecting cylinder, the threaded ring is in threaded connection with the connecting cylinder, and the connecting cylinder and the threaded ring are sealed through the sealing ring, so that the filter element is more convenient and faster to assemble, and the effect of high production efficiency of the filter element of the hydraulic system is realized; (3) through the solid fixed ring and the cooperation groove that set up, utilize solid fixed ring to cup joint in the outside of filter paper to make the cooperation groove carry out the adaptation with the fold of filter paper, make the distance between the fold of the outer wall of filter paper can keep fixed, consequently further realized the effect that filter core filtration efficiency is high.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is the overall structure schematic diagram provided by the embodiment of the special filter element for the hydraulic system before the pump.

Fig. 2 is the internal structure schematic diagram provided by the embodiment of the special filter element for the hydraulic system before the pump.

Fig. 3 is a schematic view of a cross-sectional structure provided by an embodiment of the special filter element for the hydraulic system before the pump of the present invention.

Fig. 4 is a schematic view of a fixed ring structure provided in an embodiment of the filter element dedicated for a hydraulic system before a pump of the present invention.

Description of reference numerals:

the device comprises a shell 1, a connecting cylinder 2, an outer metal net 3, filter paper 4, an inner metal net 5, a fixing ring 6, a matching groove 7, a mounting plate 8, a split ball 9, a fold 10, a threaded ring 11, a liquid inlet pipe 12, an upper sealing ring 13, a connecting plate 14, an upper end cover 15, a lower end cover 16, a liquid outlet pipe 17, a sealing ring 18, a lower sealing ring 19 and a fixing hole 20.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

As shown in fig. 1-4, the filter element special for a hydraulic system before a pump provided by the embodiment of the present invention comprises a housing 1, a connecting cylinder 2 is integrally formed on the top outer wall of the housing 1, the inner wall of the connecting cylinder 2 has an internal thread, an outer metal mesh 3 is arranged inside the housing 1, the outer metal mesh 3 is made of stainless steel, an upper end cap 15 is welded on the top of the outer metal mesh 3, a lower end cap 16 is welded on the bottom outer wall of the outer metal mesh 3, an inner metal mesh 5 is arranged inside the outer metal mesh 3, the inner metal mesh 5 is made of stainless steel, a filter paper 4 is arranged between the inner metal mesh 5 and the outer metal mesh 3, the filter paper 4 is cylindrical, the inner wall and the outer wall of the filter paper 4 are both provided with evenly distributed folds 10, the surface area of the filter paper 4 is increased by the folds 10, the outer wall of the inner metal mesh 5 is welded with split balls 9 which are distributed in central symmetry, the separation ball 9 is located inside the pleats 10 of the filter paper 4, and the separation ball 9 serves to shape the pleats 10.

The utility model provides a pair of special filter core of hydraulic system before pump, through the outer metal mesh 3 that sets up, interior metal mesh 5 with cut apart ball 9, utilize the outside welded of interior metal mesh 5 to cut apart ball 9 and support the fold 10 of filter paper 4 for the fold 10 of filter paper 4 can keep fixed interval, has consequently realized the effect that filter core filtration efficiency is high.

The utility model provides a in another embodiment, the top outer wall integrated into one piece of upper end cover 15 has threaded ring 11, threaded ring 11 passes through threaded connection with the connecting cylinder, sealing washer 18 has been cup jointed to the outside of outer metal mesh 3, sealing

washer

18 and 2 looks adaptations of connecting cylinder carry out threaded connection through threaded ring 11 and connecting cylinder 2, and seal connecting cylinder 2 and threaded ring 11 through sealing washer 18, make the equipment of filter core more convenient and quick, make the effect that hydraulic system filter core production efficiency is high.

The utility model provides a another embodiment, be provided with solid fixed ring 6 between filter paper 4 and the outer metal mesh 3, gu fixed ring 6's inner wall is opened has the cooperation groove 7 with 4 looks adaptations of filter paper, cup joints at the outside of filter paper 4 through solid fixed ring 6 to make cooperation groove 7 carry out the adaptation with the fold 10 of filter paper 4, make the distance between the fold 10 of the outer wall of filter paper 4 can keep fixed, make further to realize the effect that filter core filtration efficiency is high.

The utility model provides a further embodiment, the top outer wall integrated into one piece of upper end cover 15 has feed liquor pipe 12, and upper seal ring 13 has been cup jointed to the outside of feed liquor pipe 12, and integrated into one piece has connecting plate 14 between screw ring 11 and the feed liquor pipe 12, treats filterable hydraulic oil and gets into the inside of shell 1 from feed liquor pipe 12.

The utility model provides an in another embodiment, the bottom outer wall integrated into one piece of shell 1 has drain pipe 17, and lower sealing ring 19 has been cup jointed to the outside of drain pipe 17, and the hydraulic oil after the filtration flows out from drain pipe 17.

The utility model provides a further embodiment, the both sides outer wall integrated into one piece of connecting cylinder 2 has mounting panel 8, and the bottom outer wall of mounting panel 8 is opened there is fixed orifices 20, conveniently carries out the thread tightening to mounting panel 8 through fixed orifices 20.

The working principle is as follows: when needs assemble the filter core, place sealing washer 18 in the inside of connecting cylinder 2, then insert the inside of shell 1 with outer metal mesh 3, and rotate screw ring 11 through connecting plate 14, make screw ring 11 and connecting cylinder 2 carry out threaded connection, when the filter core carries out the during operation, hydraulic oil enters into the inside of interior metal mesh 5 through feed liquor pipe 12, make filter paper 4 between interior metal mesh 5 and the outer metal mesh 3 filter to the hydraulic pressure right side, make the fold 10 between the filter paper 4 keep fixed clearance through cutting apart ball 9 and solid fixed ring 6, make the efficiency when the filter core can filter hydraulic oil obtain increasing.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. The utility model provides a special filter core of hydraulic system before pump, its characterized in that, includes shell (1), the top outer wall integrated into one piece of shell (1) has connecting cylinder (2), the inside of shell (1) is provided with outer metal mesh (3), the top welding of outer metal mesh (3) has upper end cover (15), the bottom outer wall welding of outer metal mesh (3) has lower end cover (16), the inside of outer metal mesh (3) is provided with interior metal mesh (5), be provided with between interior metal mesh (5) and outer metal mesh (3) filter paper (4), the inner wall and the outer wall of filter paper (4) all are provided with evenly distributed's fold (10), the outer wall welding of interior metal mesh (5) has the ball (9) of cutting apart that is central symmetry distribution, cut apart the inside that ball (9) are located fold (10) of filter paper (4).

2. The special filter element for the hydraulic system before the pump as recited in claim 1, wherein a threaded ring (11) is integrally formed on the top outer wall of the upper end cover (15), and the threaded ring (11) is in threaded connection with the connecting cylinder (2).

3. The special filter element for the hydraulic system before the pump as recited in claim 1, wherein a fixing ring (6) is arranged between the filter paper (4) and the outer metal net (3), and the inner wall of the fixing ring (6) is provided with a matching groove (7) matched with the filter paper (4).

4. The special filter element for the hydraulic system before the pump as recited in claim 1, wherein a sealing ring (18) is sleeved outside the outer metal mesh (3), and the sealing ring (18) is matched with the connecting cylinder (2).

5. The special filter element for the hydraulic system before the pump as recited in claim 2, wherein a liquid inlet pipe (12) is integrally formed on the outer wall of the top of the upper end cover (15), an upper sealing ring (13) is sleeved outside the liquid inlet pipe (12), and a connecting plate (14) is integrally formed between the threaded ring (11) and the liquid inlet pipe (12).

6. The special filter element for the hydraulic system before the pump as recited in claim 1, wherein the outer wall of the bottom of the housing (1) is integrally formed with a liquid outlet pipe (17), and a lower sealing ring (19) is sleeved outside the liquid outlet pipe (17).

7. The special filter element for the hydraulic system before the pump as recited in claim 1, characterized in that the outer walls of the two sides of the connecting cylinder (2) are integrally formed with a mounting plate (8), and the outer wall of the bottom of the mounting plate (8) is provided with a fixing hole (20).