Oil filtering structure of a plate-frame oil filter vehicle

Abstract

The present invention discloses an oil filtering structure of a plate-and-frame oil filter vehicle, which is composed of a plurality of oil filtering units, each of which includes a filter plate, a filter frame, and filter paper arranged between the filter plate and the filter frame. Filter paper anti-cracking protective pads are provided on both sides of the filter paper of each oil filtering unit, and protective pad oil holes corresponding to the positions of the filter paper oil holes on the end faces of the filter paper are provided on both sides below the filter paper anti-cracking protective pads, and a plurality of fan-shaped oil holes are provided on the end face of the filter paper anti-cracking protective pad above the oil hole side of the protective pad. The oil filtering structure of the plate-and-frame oil filter vehicle of the present invention is provided with filter paper anti-cracking protective pads on both sides of the filter paper, and a plurality of fan-shaped oil holes are provided on the end face of the filter paper anti-cracking protective pad above the oil hole side of the protective pad. The filter paper anti-cracking protective pads form support and protection on both sides of the filter paper, thereby improving the oil filtering effect and reducing the risk of filter paper rupture. The reliability and stability are high, the oil filtering effectiveness can be guaranteed, and the cost of using the filter paper is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of hydraulic industry equipment, in particular to an oil filter structure of a plate-frame oil filter vehicle. Background Art

[0002] Plate-and-frame oil filter trucks are widely used in the hydraulic industry due to their many advantages. Their basic principle is to sandwich filter paper between a plastic filter plate and a filter frame, using the filter plate and filter frame to form a filtration channel for fine filtration of the hydraulic oil. During the hydraulic oil filtration process, the filter paper in plate-and-frame oil filter trucks can be prone to localized cracking and damage at the left and right openings (oil holes) below the filter plate and filter frame due to high local pressure. This can cause the dirty oil to flow directly through the damaged filter paper holes, preventing effective filtration. Furthermore, this filtration failure caused by filter paper cracks is hidden and difficult to detect and correct in a timely manner, resulting in wasted manpower and resources without achieving the desired filtration effect. Furthermore, localized damage to the filter paper itself inevitably increases the cost of using the filter paper. Summary of the Invention

[0003] The purpose of the present invention is to provide an oil filtering structure for a plate-and-frame oil filter vehicle to solve the above-mentioned defects.

[0004] In order to achieve the above object, the present invention provides the following technical solutions:

[0005] An oil filter structure of a plate-and-frame oil filter vehicle consists of several oil filter units, each of which includes a filter plate, a filter frame, and filter paper installed between the filter plate and the filter frame. Filter paper anti-cracking protection pads are provided on both sides of the filter paper of each oil filter unit. The overall size of the filter paper anti-cracking protection pad is the same as that of the filter paper. Filter paper oil passing holes are provided on both sides below the end face of the filter paper. Protection pad oil passing holes corresponding to the positions of the filter paper oil passing holes are provided on both sides below the filter paper anti-cracking protection pad. Several oil passing holes distributed in a fan shape are provided on the end face of the filter paper anti-cracking protection pad above the oil passing hole of the protection pad.

[0006] Preferably, the filter frame is a square plate-shaped structure, a large filter frame through hole is provided at the center of the filter frame, filter frame oil holes corresponding to the positions of the filter paper oil holes are provided below both sides of the large filter frame through hole, a cross-shaped filter frame bracket is installed in the large filter frame through hole, and the cross-shaped filter frame bracket divides the large filter frame through hole into four small filter frame through holes.

[0007] Preferably, a large through hole of the protection pad is provided at the center of the filter paper anti-cracking protection pad, and a cross-shaped protection pad bracket corresponding to the position of the cross-shaped filter frame bracket is installed in the large through hole of the protection pad, and the cross-shaped protection pad bracket divides the large through hole of the protection pad into four small through holes of the protection pad.

[0008] Preferably, the filter paper anti-cracking protective pad is a sheet structure made of a flexible oil-resistant sealing material.

[0009] Preferably, filter plate oil holes corresponding to the positions of the filter paper oil holes are provided on both sides below the end surface of the filter plate close to the filter paper anti-cracking protection pad, and a filter plate basin area is provided on the filter plate end surface above the filter plate oil hole, and a number of evenly distributed filter plate protrusions are provided in the filter plate basin area.

[0010] Preferably, the oil holes of the filter plate, the oil holes of the filter frame, the oil holes of the filter paper, and the oil holes of the protective pad are overlapped and interconnected.

[0011] Preferably, the oil holes of the filter plate, the oil holes of the filter frame, the oil holes of the filter paper, and the oil holes of the protective pad are all circular holes.

[0012] Preferably, the area where several oil holes are distributed in a fan shape is specifically: an annular area located outside the oil hole of the protective pad with the center of the oil hole of the protective pad as the center of the circle, the line connecting the centers of the two oil holes of the protective pad as the starting line of the fan center angle, and the fan center angle is 90°.

[0013] The beneficial effects of the present invention are:

[0014] The oil filtering structure of the plate-and-frame oil filter vehicle of the present invention is provided with filter paper anti-cracking protection pads on both sides of the filter paper, and a plurality of oil-passing holes distributed in a fan shape are provided on the end face of the filter paper anti-cracking protection pad above the oil-passing hole side of the protection pad. The filter paper anti-cracking protection pad forms support and protection on both sides of the filter paper, thereby improving the oil filtering effect and reducing the risk of filter paper rupture. It has high reliability and good stability, and the oil filtering effectiveness can be guaranteed, thereby reducing the cost of using the filter paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 : A schematic structural diagram of the present invention;

[0016] Figure 2 : Filter paper anti-cracking protection pad structural diagram of the present invention. DETAILED DESCRIPTION

[0017] Combined with attachment Figure 1-2 , the specific embodiments of the present invention are described as follows:

[0018] like Figure 1-2 As shown, an oil filter structure of a plate-and-frame oil filter vehicle is composed of several oil filter units. Each oil filter unit includes a filter plate 1, a filter frame 2, and filter paper installed between the filter plate 1 and the filter frame 2. Filter paper anti-cracking protection pads 3 are provided on both sides of the filter paper of each oil filter unit. The filter paper anti-cracking protection pad 3 is the same size as the filter paper, and is a sheet structure made of flexible oil-resistant sealing material, the same as the filter paper.

[0019] Filter paper oil holes are provided on both sides of the lower end surface of the filter paper. Filter paper anti-crack protective pad 3 also has protective pad oil holes 31 on both sides below, corresponding to the positions of the filter paper oil holes. Several oil holes 32 are provided on the end surface of the filter paper anti-crack protective pad 3 above and below the protective pad oil holes 31. Specifically, the area where the several oil holes 32 are distributed in a fan-shaped pattern is an annular segment located outside the protective pad oil hole 31, with the center of the protective pad oil hole 31 as the center of the circle and the line connecting the centers of the two protective pad oil holes 31 as the starting line of the fan-shaped center angle. The fan-shaped center angle is 90°.

[0020] The filter frame 2 is a square plate-shaped structure. A large filter frame through hole is provided at the center of the filter frame 2. Filter frame oil holes 21 corresponding to the positions of the oil holes of the filter paper are provided below both sides of the large filter frame through hole. A cross-shaped filter frame bracket 22 is installed in the large filter frame through hole. The cross-shaped filter frame bracket 22 divides the large filter frame through hole into four small filter frame through holes 23.

[0021] A large through hole is provided at the center of the filter paper anti-crack protection pad 3 , in which a cross-shaped protection pad bracket 33 corresponding to the position of the cross-shaped filter frame bracket 22 is installed. The cross-shaped protection pad bracket 33 divides the large through hole into four small through holes 34 .

[0022] Among them, the upper two small protection pad through holes 34 of the four protection pad through holes 34 correspond to the upper two small filter frame through holes 23 of the four filter frame through holes 23 in position and are the same size; and the lower two small protection pad through holes 34 of the four protection pad through holes 34 correspond to the lower two small filter frame through holes 23 of the four filter frame through holes 23 in position, but due to the setting of the area where the several oil-passing holes 32 are distributed in a fan shape, the two small protection pad through holes 34 located below are smaller than the two small filter frame through holes 23 located below.

[0023] Filter plate 1 has oil holes 11 on both sides below the end surface near the filter paper anti-crack protection pad 3, corresponding to the positions of the filter paper oil holes. A filter plate basin area 12 is provided on the end surface of the filter plate 1 above the oil holes 11. Several evenly distributed filter plate protrusions 13 are provided within the filter plate basin area 12. The filter plate protrusions 13 are in extrusive contact with the filter paper, facilitating fine washing and filtration of the hydraulic oil in the gaps between the filter plate protrusions 13.

[0024] The filter plate oil holes 11 , the filter frame oil holes 21 , the filter paper oil holes, and the protective pad oil holes 31 are all circular holes, and are overlapped and interconnected.

[0025] The oil filtering structure of the plate-and-frame oil filter vehicle of the present invention is provided with filter paper anti-cracking protection pads 3 on both sides of the filter paper, and a plurality of oil-passing holes 32 distributed in a fan shape are provided on the end face of the filter paper anti-cracking protection pad 3 above the oil-passing hole 31 of the protection pad. The filter paper anti-cracking protection pad 3 forms support and protection on both sides of the filter paper, thereby improving the oil filtering effect and reducing the risk of filter paper rupture. It has high reliability and good stability, and the oil filtering effectiveness can be guaranteed, thereby reducing the cost of using the filter paper.

[0026] The above description of the invention is illustrative in combination with the accompanying drawings. It is obvious that the specific implementation of the present invention is not limited to the above-mentioned method. As long as such non-substantial improvements are made using the method concept and technical solution of the present invention, or the concept and technical solution of the invention are directly applied to other occasions without improvement, they are all within the scope of protection of the present invention.

Claims

1. An oil filter structure of a plate-and-frame oil filter vehicle, comprising a plurality of oil filter units, each oil filter unit comprising a filter plate (1), a filter frame (2), and filter paper installed between the filter plate (1) and the filter frame (2), characterized in that: Both sides of the filter paper of each oil filter unit are provided with filter paper anti-cracking protection pads (3), the overall size of the filter paper anti-cracking protection pads (3) is the same as that of the filter paper, filter paper oil holes are provided on both sides below the end surface of the filter paper, and protection pad oil holes (31) corresponding to the positions of the filter paper oil holes are provided on both sides below the filter paper anti-cracking protection pads (3), and a plurality of fan-shaped oil holes (32) are provided on the end surface of the filter paper anti-cracking protection pad (3) above the side of the protection pad oil holes (31); The filter frame (2) is a square plate-shaped structure. A large filter frame through hole is provided at the center of the filter frame (2). Filter frame oil holes (21) corresponding to the positions of the filter paper oil holes are provided below both sides of the large filter frame through hole. A cross-shaped filter frame bracket (22) is installed in the large filter frame through hole. The cross-shaped filter frame bracket (22) divides the large filter frame through hole into four small filter frame through holes (23). A large through hole for the protection pad is provided at the center of the filter paper anti-cracking protection pad (3), a cross-shaped protection pad bracket (33) corresponding to the position of the cross-shaped filter frame bracket (22) is installed in the large through hole for the protection pad, and the cross-shaped protection pad bracket (33) divides the large through hole for the protection pad into four small through holes for the protection pad (34).

2. The oil filter structure of a plate-and-frame oil filter vehicle according to claim 1, characterized in that: The filter paper anti-cracking protective pad (3) is a sheet-like structure made of a flexible oil-resistant sealing material.

3. The oil filter structure of the plate-and-frame oil filter vehicle according to claim 1, characterized in that: Filter plate oil holes (11) corresponding to the positions of the filter paper oil holes are provided on both sides below the end surface of the filter plate (1) on the side close to the filter paper anti-cracking protection pad (3); a filter plate basin area (12) is provided on the end surface of the filter plate (1) above the filter plate oil holes (11); and a plurality of evenly distributed filter plate protrusions (13) are provided in the filter plate basin area (12).

4. The oil filter structure of the plate-and-frame oil filter vehicle according to claim 3, characterized in that: The filter plate oil holes (11), the filter frame oil holes (21), the filter paper oil holes, and the protective pad oil holes (31) are overlapped and interconnected.

5. The oil filter structure of the plate-and-frame oil filter vehicle according to claim 3, characterized in that: The filter plate oil passage hole (11), the filter frame oil passage hole (21), the filter paper oil passage hole, and the protective pad oil passage hole (31) are all circular holes.

6. The oil filter structure of a plate-and-frame oil filter vehicle according to claim 1, characterized in that: The area where the plurality of oil-through holes (32) are distributed in a fan shape is specifically: an annular area located outside the protective pad oil-through hole (31) with the center of the protective pad oil-through hole (31) as the center of the circle, a line connecting the centers of the two protective pad oil-through holes (31) as the starting line of the fan center angle, and a fan center angle of 90°.

Images