Replacing mechanism for hydraulic oil filter of cubic press

Abstract

The utility model discloses a hydraulic oil filter replacement mechanism for a cubic press, which comprises a first self-sealing mechanism used for being connected with a port of an oil inlet pipe and a second self-sealing mechanism used for being connected with a port of an oil outlet pipe, the first self-sealing mechanism comprises a shell, an inverted-T-shaped inner cavity is arranged in the shell along the length direction of the shell, and the second self-sealing mechanism is arranged in the shell. A small-caliber port of the shell is communicated with the oil inlet pipe, a large-caliber port of the shell is used for being connected with an oil inlet flange of the hydraulic oil filter, a self-sealing assembly is arranged at the position, close to the large-caliber port, in the shell, and an inner channel of the self-sealing assembly is opened when abutting against the oil inlet flange of the hydraulic oil filter. And the structure of the second self-sealing mechanism is the same as that of the first self-sealing mechanism. When the hydraulic oil filter needs to be detached and replaced and the first self-sealing mechanism and the second self-sealing mechanism are separated from the hydraulic oil filter, the self-sealing assemblies in the hydraulic oil filter can seal ports of the oil inlet pipe and the oil outlet pipe, leakage of hydraulic oil in the oil inlet pipe and the oil outlet pipe is reduced, and waste of the hydraulic oil is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of hydraulic systems, and particularly relates to a replacement mechanism for a hydraulic oil filter of a six-sided top press. Background Technique

[0002] Various impurities inevitably appear in the hydraulic system. Their sources mainly include: mechanical impurities remaining in the hydraulic system after cleaning, such as water rust, casting sand, welding slag, iron filings, paint, paint skin, and cotton yarn scraps; impurities entering the hydraulic system from the outside, such as dust entering through the oil filling port and dust-proof ring, etc.; impurities generated during the working process, such as fragments formed by the sealing parts under hydraulic action, metal powders generated by relative wear during movement, and gums, asphaltenes, carbon residues, etc. generated by the oxidation and deterioration of the oil. After the above impurities are mixed into the hydraulic oil, with the circulation of the hydraulic oil, they will cause damage everywhere, seriously affecting the normal operation of the hydraulic system. For example, it will cause the very small gaps (measured in) between the relative moving parts in the hydraulic components, as well as the throttling small holes and gaps to be stuck or blocked; it will damage the oil film between the relative moving parts, scratch the surface of the gaps, increase the internal leakage, reduce the efficiency, increase the heat generation, and intensify the chemical action of the oil, causing the oil to deteriorate. According to production statistics, more than 75% of the failures in the hydraulic system are caused by impurities mixed into the hydraulic oil. Therefore, maintaining the cleanliness of the oil and preventing the pollution of the oil are very important for the hydraulic system.

[0003] The hydraulic station is a supporting device for a six-sided top diamond press. The hydraulic station can simultaneously meet the working requirements of six hydraulic devices inside the six-sided top press. Among them, the quality of the hydraulic oil has a great impact on the working performance of the hydraulic system, and the root causes of many failures originate from it. The hydraulic oil filter can intercept pollutants in the oil, keep the oil clean, and ensure the normal operation of the oil system.

[0004] When the hydraulic oil filter is used for a long time, it is inevitable to remove the hydraulic oil filter from the hydraulic station during maintenance, repair or replacement. In the existing situation, when the hydraulic oil filter needs to be removed and replaced, a certain amount of hydraulic oil will leak out from the inlet pipe and outlet pipe connected to the hydraulic oil filter, and the leaked hydraulic oil is very difficult to recycle, resulting in a certain waste. Content of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide a replacement mechanism for a hydraulic oil filter of a six-sided top press to solve the technical problems proposed in the background technique.

[0006] The utility model provides the following technical solutions:

[0007] A hydraulic oil filter replacement mechanism for a six-sided top press, comprising a first self-sealing mechanism for connecting to the inlet pipe port and a second self-sealing mechanism for connecting to the outlet pipe port. The first self-sealing mechanism includes a housing, and a convex-shaped inner cavity is arranged along the length direction inside the housing. The small-diameter port of the housing is communicated with the inlet pipe, and the large-diameter port of the housing is used for connecting to the flange of the inlet of the hydraulic oil filter. A self-sealing component is arranged near the large-diameter port inside the housing, and the internal passage of the self-sealing component is opened when it abuts against the flange of the inlet of the hydraulic oil filter. The structure of the second self-sealing mechanism is the same as that of the first self-sealing mechanism.

[0008] Preferably, a first flange is coaxially arranged at the small-diameter port of the housing, an inlet pipe flange is arranged at the inlet pipe port, and the first flange and the inlet pipe flange are connected by a first connecting bolt. A second flange for connecting to the flange of the inlet of the hydraulic oil filter is coaxially arranged at the large-diameter port of the housing, and the second flange and the flange of the inlet of the hydraulic oil filter are connected by a second connecting bolt.

[0009] Preferably, the flange of the inlet of the hydraulic oil filter is arranged at the lower end of the hydraulic oil filter. A filter cavity is arranged inside the hydraulic oil filter, and a cylindrical filter element is vertically arranged inside the filter cavity. The lower end of the cylindrical filter element is hermetically connected to the bottom of the filter cavity. A second inlet pipe is arranged at the lower end of the hydraulic oil filter, and the upper end of the second inlet pipe extends into the cylindrical filter element. The flange of the inlet of the hydraulic oil filter is coaxially arranged at the lower end of the second inlet pipe. A second outlet pipe is arranged at the upper end of the side of the hydraulic oil filter, the inner end of the second outlet pipe is communicated with the inside of the filter cavity, and the outer end of the second outlet pipe is coaxially provided with a flange of the outlet of the hydraulic oil filter. The flange of the outlet of the hydraulic oil filter is connected to the second self-sealing mechanism.

[0010] Preferably, the self-sealing component includes a sealing ring seat, the outer ring of the sealing ring seat is coaxially connected to the inner ring of the large diameter of the housing, a cylinder is coaxially arranged inside the inner ring of the sealing ring seat, a limiting plate is arranged at one port of the cylinder far away from the flange of the inlet of the hydraulic oil filter, a limiting ring is coaxially arranged at one port of the cylinder close to the flange of the inlet of the hydraulic oil filter, and a plurality of oil inlets are arranged at one side of the cylinder close to the limiting plate. A return spring is sleeved at one side of the cylinder close to the limiting ring.

[0011] Preferably, the return spring is located between the limiting plate and the sealing ring seat.

[0012] Preferably, the diameter of the small-diameter part inside the housing is the same as the inner diameter of the cylinder body, the inner diameter of the cylinder body is the same as the inner diameter of the flange of the hydraulic oil filter inlet, and the diameter of the large-diameter part inside the housing is greater than the inner diameter of the flange of the hydraulic oil filter inlet.

[0013] Preferably, the diameter of the limiting plate is greater than the inner ring diameter of the closed ring seat and less than the diameter of the large-diameter part inside the housing.

[0014] Preferably, the inner diameter of the limiting ring is the same as the inner diameter of the cylinder body, and the outer diameter of the limiting ring is greater than the inner ring diameter of the closed ring seat and less than the diameter of the large-diameter part inside the housing.

[0015] Preferably, the inner ring diameter of the closed ring seat is the same as the outer diameter of the cylinder body.

[0016] Preferably, the inlet is rectangular, the length direction of the inlet is arranged along the length direction of the cylinder body, and a plurality of the inlets are evenly arranged at equal intervals in the circumferential direction on the side surface of the cylinder body; the sum of the areas of the plurality of inlets is equal to the cross-sectional area of the inner circle of the cylinder body.

[0017] Preferably, the length of the inlet is less than the thickness of the closed ring seat along its axial direction, and a sealing ring is coaxially arranged inside the inner ring of the closed ring seat. The sealing ring is cylindrical, and the length of the sealing ring along its axial direction is greater than the length of the inlet.

[0018] Preferably, an annular gasket is coaxially arranged on the side surface of the limiting ring away from the cylinder body.

[0019] Compared with the prior art, the present utility model has the following beneficial effects:

[0020] The present utility model relates to a replacement mechanism for a hydraulic oil filter of a six-sided top press. By respectively arranging a first self-sealing mechanism and a second self-sealing mechanism at the ports of the inlet pipe and the outlet pipe, the first self-sealing mechanism and the second self-sealing mechanism have the same structure. When the hydraulic oil filter needs to be disassembled and replaced, when the first self-sealing mechanism and the second self-sealing mechanism are separated from the hydraulic oil filter, the self-sealing components inside can seal the ports of the inlet pipe and the outlet pipe, reducing the leakage of the hydraulic oil inside the inlet pipe and the outlet pipe and reducing the waste of the hydraulic oil. Description of the Drawings

[0021] To more clearly illustrate the technical solutions of the embodiments of the present utility model, the accompanying drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following accompanying drawings only show certain embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant accompanying drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a front view schematic diagram of the present utility model.

[0023] Figure 2 It is a structural schematic diagram of the present utility model.

[0024] Figure 3 It is a structural schematic diagram of the first self-sealing mechanism of the present utility model.

[0025] Figure 4 It is a structural schematic diagram when the first self-sealing mechanism of the present utility model is closed. Specific embodiments

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0027] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but only represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0028] Please refer to Figures 1-4As shown in the figure, a hydraulic oil filter replacement mechanism for a six-sided top press includes a first self-sealing mechanism 2 for connecting to the port of the inlet pipe 1 and a second self-sealing mechanism 4 for connecting to the port of the outlet pipe 3. The first self-sealing mechanism 2 includes a housing 21. Along its length direction, a convex-shaped inner cavity 22 is provided inside the housing 21. The small-diameter port of the housing 21 is communicated with the inlet pipe 1, and the large-diameter port of the housing 21 is used for connecting to the flange 5 of the hydraulic oil filter inlet. A self-sealing component 7 is arranged inside the housing 21 near its large-diameter port. The internal passage of the self-sealing component 7 is opened when it abuts against the flange 5 of the hydraulic oil filter inlet. The structure of the second self-sealing mechanism 4 is the same as that of the first self-sealing mechanism 2. When the hydraulic oil filter needs to be disassembled and replaced, when the first self-sealing mechanism and the second self-sealing mechanism are separated from the flange 5 of the hydraulic oil filter inlet and the flange 6 of the hydraulic oil filter outlet of the hydraulic oil filter, the self-sealing components inside them can seal the ports of the inlet pipe and the outlet pipe, reducing the leakage of the hydraulic oil inside the inlet pipe and the outlet pipe and reducing the waste of the hydraulic oil.

[0029] A first flange is coaxially arranged at the small-diameter port of the housing 21. An inlet pipe flange is arranged at the port of the inlet pipe 1. The first flange and the inlet pipe flange are connected by a first connecting bolt. A second flange 24 for connecting to the flange 5 of the hydraulic oil filter inlet is coaxially arranged at the large-diameter port of the housing 21. The second flange 24 and the flange 5 of the hydraulic oil filter inlet are connected by a second connecting bolt 25.

[0030] The flange 5 of the hydraulic oil filter inlet is arranged at the lower end of the hydraulic oil filter 8. A filter cavity 9 is arranged inside the hydraulic oil filter 8. A cylindrical filter element 10 is vertically arranged inside the filter cavity. The lower end of the cylindrical filter element 10 is hermetically connected to the bottom of the filter cavity 9. A second inlet pipe is arranged at the lower end of the hydraulic oil filter 8. The upper end of the second inlet pipe extends into the inside of the cylindrical filter element 10. The flange 5 of the hydraulic oil filter inlet is coaxially arranged at the lower end of the second inlet pipe. A second outlet pipe is arranged at the upper side of the hydraulic oil filter 8. The inner end of the second outlet pipe is communicated with the inside of the filter cavity 9. The outer end of the second outlet pipe is coaxially provided with a flange 6 of the hydraulic oil filter outlet. The flange 6 of the hydraulic oil filter outlet is connected to the second self-sealing mechanism 4. The hydraulic oil in the inlet pipe enters the flange 5 of the hydraulic oil filter inlet through the first self-sealing mechanism and enters the inside of the cylindrical filter element 10. The hydraulic oil filtered by the cylindrical filter element 10 enters the outlet pipe through the filter cavity 9, the flange 6 of the hydraulic oil filter outlet, and the second self-sealing mechanism.

[0031] The self-sealing component 7 includes a sealing ring seat 71. The outer ring of the sealing ring seat 71 is coaxially connected to the large-diameter inner ring of the housing 21. A cylinder 72 is coaxially arranged inside the inner ring of the sealing ring seat 71. A limiting plate 73 is provided at one end of the cylinder 72 away from the hydraulic oil filter inlet flange 5. A limiting ring 74 is coaxially arranged at one end of the cylinder 72 close to the hydraulic oil filter inlet flange 5. A plurality of oil inlets 75 are provided at one end of the side of the cylinder 72 close to the limiting plate 73. A return spring 76 is sleeved at one end of the side of the cylinder 72 close to the limiting ring 74. When the hydraulic oil filter inlet flange 5 is connected to the second flange 24, the cylinder 72 moves downward, and the plurality of oil inlets 75 communicate with the small-diameter part of the housing 21. The hydraulic oil sequentially enters the inside of the cylindrical filter element 10 through the small-diameter part of the housing, the oil inlets 75, the limiting ring, and the hydraulic oil filter inlet flange 5. At this time, the return spring 76 is compressed. When disassembling, the hydraulic oil filter inlet flange 5 is separated from the second flange 24. Through the reset of the return spring 76, the cylinder 72 moves upward, and the plurality of oil inlets 75 are located in the sealing ring on the inner wall of the sealing ring seat 71. At this time, the hydraulic oil at the small-diameter part of the housing cannot enter the oil inlets.

[0032] The return spring 76 is located between the limiting plate 73 and the sealing ring seat 71.

[0033] The diameter of the small-diameter part inside the housing 21 is the same as the inner diameter of the cylinder 72. The inner diameter of the cylinder 72 is the same as the inner diameter of the hydraulic oil filter inlet flange 5. The diameter of the large-diameter part inside the housing 21 is larger than the inner diameter of the hydraulic oil filter inlet flange 5.

[0034] The diameter of the limiting plate 73 is larger than the inner diameter of the inner ring of the sealing ring seat 71 and smaller than the diameter of the large-diameter part inside the housing 21.

[0035] The inner diameter of the limiting ring 74 is the same as the inner diameter of the cylinder 72. The outer diameter of the limiting ring 74 is larger than the inner diameter of the inner ring of the sealing ring seat 71 and smaller than the diameter of the large-diameter part inside the housing 21.

[0036] The inner diameter of the inner ring of the sealing ring seat 71 is the same as the outer diameter of the cylinder 72.

[0037] The oil inlets 75 are rectangular. The length direction of the oil inlets 75 is arranged along the length direction of the cylinder 72. The plurality of oil inlets 75 are evenly arranged at equal intervals in the circumferential direction of the side of the cylinder 72. The sum of the areas of the plurality of oil inlets 75 is equal to the cross-sectional area of the inner ring of the cylinder 72.

[0038] The length of the oil inlet 75 is less than the thickness of the closed ring seat 71 along its axial direction, and a sealing ring 77 is coaxially arranged on the inner ring of the closed ring seat 71. The sealing ring is cylindrical, and the length of the sealing ring along its axial direction is greater than the length of the oil inlet 75.

[0039] An annular gasket 78 is coaxially arranged on the side surface of the limiting ring 74 away from the cylinder body 72.

[0040] The above is only the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, making equivalent substitutions or changes, should be covered within the protection scope of the present invention.

Claims

1. A hydraulic oil filter replacement mechanism for a six-sided top press, characterized in that: The invention comprises a first self-sealing mechanism (2) for connecting to a port of an oil inlet pipe (1) and a second self-sealing mechanism (4) for connecting to a port of an oil outlet pipe (3). The first self-sealing mechanism (2) comprises a shell (21). A convex inner cavity (22) is arranged in the shell (21) along its length direction. The small-diameter port of the shell (21) is connected to the oil inlet pipe (1). The large-diameter port of the shell (21) is used to connect to an oil inlet flange (5) of a hydraulic oil filter. A self-sealing component (7) is arranged inside the shell (21) near its large-diameter port. The internal channel of the self-sealing component (7) opens when it abuts against the oil inlet flange (5) of the hydraulic oil filter. The structure of the second self-sealing mechanism (4) is the same as that of the first self-sealing mechanism (2).

2. The hydraulic oil filter replacement mechanism for a six-sided top press according to claim 1, characterized in that: The self-sealing component (7) comprises a closed ring seat (71), the outer ring of the closed ring seat (71) is coaxially connected to the large-diameter inner ring of the housing (21), the inner ring of the closed ring seat (71) is coaxially provided with a cylinder (72), a port of the cylinder (72) away from the oil inlet flange (5) of the hydraulic oil filter is provided with a limit plate (73), a port of the cylinder (72) close to the oil inlet flange (5) of the hydraulic oil filter is coaxially provided with a limit ring (74), a side of the cylinder (72) close to the limit plate (73) is provided with a plurality of oil inlets (75), and a side of the cylinder (72) close to the limit ring (74) is sleeved with a return spring (76).

3. The hydraulic oil filter replacement mechanism for a six-sided top press according to claim 2, characterized in that: The diameter of the small-diameter internal aperture of the housing (21) is the same as the inner diameter of the cylinder (72), the inner diameter of the cylinder (72) is the same as the inner diameter of the hydraulic oil filter oil inlet flange (5), and the diameter of the large-diameter internal aperture of the housing (21) is greater than the inner diameter of the hydraulic oil filter oil inlet flange (5).

4. The hydraulic oil filter replacement mechanism for a six-sided top press according to claim 2, characterized in that: The diameter of the limiting plate (73) is larger than the inner diameter of the closed ring seat (71) and smaller than the diameter of the large aperture inside the housing (21).

5. The hydraulic oil filter replacement mechanism for a six-sided top press according to claim 2, characterized in that: The inner diameter of the limiting ring (74) is the same as the inner diameter of the cylinder (72), and the outer diameter of the limiting ring (74) is larger than the inner ring diameter of the closed ring seat (71) and smaller than the diameter of the large aperture inside the shell (21).

6. The hydraulic oil filter replacement mechanism for a six-sided top press according to claim 1, characterized in that: The oil inlet (75) is rectangular in shape, and the length direction of the oil inlet (75) is arranged along the length direction of the cylinder (72). A plurality of the oil inlet (75) are evenly arranged at equal intervals along the circumferential direction of the side surface of the cylinder (72).

7. A hydraulic oil filter replacement mechanism for a six-sided top press according to claim 6, characterized in that: The sum of the areas of the plurality of oil inlets (75) is equal to the cross-sectional area of ​​the inner ring of the cylinder (72).

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