Oil and gas filtering device with external flange

Abstract

An oil and gas filter device with an external flange, which relates to the field of power transmission technology. The present invention is to solve the problem that the existing ventilation hood will discharge a small amount of oil mist in the gear box mixed with the air while venting the air and relieving the pressure, which brings the risk of environmental pollution. The present invention includes an outer cover shell, a bushing, an upper cover, a first filter screen and a second filter screen. The air inlet end of the outer cover shell is connected to the air outlet end of the box body, the air outlet end of the outer cover shell is fixedly connected to the bushing, the air inlet end of the bushing is fixedly connected to the first filter screen, the outer end of the bushing is fixedly connected to the upper cover, the air inlet end of the upper cover is fixedly connected to the second filter screen, and the air outlet end of the upper cover is provided with a flange. The present invention is used for oil and gas filtration in gear boxes.

Description

Technical Field

[0001] The invention relates to the technical field of power transmission, and in particular to an oil and gas filtering device with an external flange. Background Art

[0002] Most of the gear transmission devices currently used are oil-spray lubricated. When working, the heat generated by the friction of gears and bearings will increase the temperature of the lubricating oil inside the gearbox and increase the internal pressure. If exhaust and pressure relief are not taken, there is a risk of oil seepage and leakage at the gearbox shaft seal. Especially when the gear speed is high, a large amount of oil, gas and pressure are generated. Therefore, a ventilation device is particularly necessary to achieve a balance between the internal pressure of the gearbox and the external atmospheric pressure. The commonly used ventilation hood will discharge a small amount of oil mist in the gearbox into the air while exhausting the pressure, bringing the risk of environmental pollution. With the increasingly higher requirements for the environment in modern society, the physical and mental health of human working environment is particularly important. Therefore, it is necessary to have higher requirements for gearbox exhaust, especially when the air circulation is not smooth, the requirements for gearbox oil mist exhaust are more stringent.

[0003] The present invention provides a professional oil and gas filtering device with an external flange, which adopts a double-layer net and a multi-channel airflow structure, and the output adopts a flange connection, so that the filtered air inside the gear box is discharged to a designated place through an external pipeline, ensuring zero pollution emission. Summary of the invention

[0004] In order to solve the problem that the existing vent hood will discharge a small amount of oil mist in the gear box mixed with the air while venting and relieving pressure, thus bringing the risk of environmental pollution, the present invention further proposes an oil and gas filtering device with an external flange.

[0005] The technical solution adopted by the present invention to solve the above technical problems is:

[0006] An oil and gas filtering device with an external flange comprises an outer cover shell, a bushing, an upper cover, a first filter screen and a second filter screen. The air inlet end of the outer cover shell is connected to the air outlet end of the box body, the air outlet end of the outer cover shell is fixedly connected to the bushing, the air inlet end of the bushing is fixedly connected to the first filter screen, the outer end of the bushing is fixedly connected to the upper cover, the air inlet end of the upper cover is fixedly connected to the second filter screen, and the air outlet end of the upper cover is provided with a flange.

[0007] Compared with the prior art, the present invention has the following beneficial effects:

[0008] It is connected to the exhaust hole of the reducer through connecting bolts, and has the characteristics of multi-channel secondary oil and gas filtration, simple processing, consistent interface, convenient disassembly and assembly, and no maintenance required under normal circumstances. The filtered air is discharged to the designated location through the external pipeline to achieve zero emission and zero pollution. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] Figure 1It is a schematic diagram of the overall structure of the present invention;

[0010] Figure 2 It is a schematic diagram of the structure of the bushing 4 in the present invention;

[0011] Figure 3 It is a schematic diagram of the structure of the sleeve 6 in the present invention;

[0012] Figure 4 It is a schematic diagram of the structure of the upper cover 5 in the present invention;

[0013] Figure 5 It is a schematic structural diagram of the outer cover shell 2 in the present invention. DETAILED DESCRIPTION

[0014] Specific implementation method 1: Combination Figures 1 to 5 To illustrate the present embodiment, an oil and gas filtering device with an external flange described in the present embodiment comprises an outer cover shell 2, a bushing 4, an upper cover 5, a first filter screen 7 and a second filter screen 8. The air inlet end of the outer cover shell 2 is connected to the air outlet end of the box body 1, the air outlet end of the outer cover shell 2 is fixedly connected to the bushing 4, the air inlet end of the bushing 4 is fixedly connected to the first filter screen 7, the outer end of the bushing 4 is fixedly connected to the upper cover 5, the air inlet end of the upper cover 5 is fixedly connected to the second filter screen 8, and the air outlet end of the upper cover 5 is provided with a flange 5-1.

[0015] Specific implementation method 2: Combination Figures 1 to 5 To explain this embodiment, the bushing 4 described in this embodiment is in the shape of a cylinder with an open outer end and a closed inner end. A fixed disc 4-1 is provided on the outer wall of the bushing 4 along the circumferential direction. The fixed disc 4-1 is fixedly connected to the port of the air outlet end of the outer cover shell 2. A plurality of air inlet holes 4-2 are evenly distributed on the outer wall of the inner end of the bushing 4 along the circumferential direction. The first filter screen 7 is fixedly connected to the inner wall of the inner end of the bushing 4 and is located inside the air inlet hole 4-2. Other components and connection methods are the same as those of the first embodiment.

[0016] Specific implementation method three: Combination Figures 1 to 5 To explain this embodiment, the inner side of the bushing 4 described in this embodiment is fixed with a sleeve 6, which is fixed between the end face of the inner side end of the bushing 4 and the end face of the air inlet end of the upper cover 5, and the middle part of the outer side wall of the sleeve 6 is fixed with a horizontal partition 6-1 along the circumferential direction, and the outer side of the horizontal partition 6-1 is fixed with the inner circumferential side wall of the bushing 4, and a plurality of groups of vent holes 6-2 are evenly distributed along the circumferential direction on the tube wall of the sleeve 6, and each group of vent holes 6-2 includes a plurality of vent holes 6-2 evenly distributed along the length direction. Other components and connection methods are the same as those of the second embodiment.

[0017] Specific implementation method four: Combination Figures 1 to 5 To explain this embodiment, in this embodiment, the first filter screen 7 is arranged at the lower side of the horizontal partition plate 6-1. Other components and connection methods are the same as those of the third embodiment.

[0018] Specific implementation method five: Combination Figures 1 to 5 To explain this embodiment, a vent pipe 5-2 is provided in the middle of the upper cover 5 described in this embodiment, a flange 5-1 is fixedly connected to the outlet end of the vent pipe 5-2, a connecting end plate 5-3 is fixedly connected to the inlet end of the vent pipe 5-2, the connecting end plate 5-3 is fixedly connected to the outer open end of the bushing 4, an exhaust through hole 5-4 is provided in the middle of the connecting end plate 5-3, a plurality of exhaust holes 5-5 are evenly distributed along the circumferential direction on the outer side of the exhaust through hole 5-4, the exhaust through hole 5-4 is arranged on the inner side of the sleeve 6, the exhaust holes 5-5 are arranged on the outer side of the sleeve 6, the second filter screen 8 is fixedly connected to the upper end surface of the connecting end plate 5-3, and is arranged on the inner side of the vent pipe 5-2, and the second filter screen 8 is located on the inner side of the exhaust through hole 5-4 and the exhaust hole 5-5. Other components and connection methods are the same as those of the specific embodiment 3.

[0019] Specific implementation method six: Combination Figures 1 to 5 To explain this embodiment, the outer cover shell 2 of this embodiment is in the shape of a funnel, the small end of the outer cover shell 2 is the air inlet end, and the large end of the outer cover shell 2 is the air outlet end. Other components and connection methods are the same as those of the specific embodiments one, two, three, four or five.

[0020] Specific implementation method seven: Combination Figures 1 to 5 To explain this embodiment, a connecting disc 2-1 is fixedly connected to the outer wall of the air inlet end of the outer cover shell 2 in the circumferential direction, and the connecting disc 2-1 is fixedly connected to the box body 1. A connecting flange 2-2 is fixedly connected to the outer wall of the air outlet end of the outer cover shell 2 in the circumferential direction, and the connecting flange 2-2 is fixedly connected to the fixed disc 4-1. Other components and connection methods are the same as those of the specific embodiment 5.

[0021] Specific implementation method eight: Combination Figures 1 to 5 To explain this embodiment, a fixing flange 4-3 is provided on the outer wall of the outer end of the bushing 4 in the circumferential direction, and the fixing flange 4-3 is fixedly connected to the connecting end plate 5-3. Other components and connection methods are the same as those of the seventh embodiment.

[0022] Specific implementation method nine: Combination Figures 1 to 5 To explain this embodiment, washers 3 are provided between the connecting flange 2-2 and the fixing disc 4-1 and between the fixing flange 4-3 and the connecting end plate 5-3. Other components and connection methods are the same as those of the eighth embodiment.

[0023] Specific implementation method ten: Combination Figures 1 to 5To explain this embodiment, a plurality of first oil return holes 4-4 are evenly distributed on the end surface of the inner end of the bushing 4 in this embodiment, the first oil return holes 4-4 are arranged on the inner side of the sleeve 6, and a plurality of second oil return holes 6-3 are evenly distributed along the circumferential direction on the horizontal partition 6-1. Other components and connection methods are the same as those of the specific embodiment 3.

[0024] How it works

[0025] When the gearbox is running, the friction heat of the gears and bearings increases the temperature of the lubricating oil inside the gearbox, and the internal oil and gas increase. The oil and gas enter the outer cover shell through the exhaust port of the gearbox, and the bushing is arranged on the outer cover shell through bolt connection. The oil and gas are filtered once through the side holes of the bushing and the first filter metal mesh embedded in its inner wall to enter the interior. The pipe sleeve is arranged with porous features, and the oil and gas circulate through multiple channels and pass through the second filter metal mesh arranged on the upper cover for secondary filtration. The purified air is discharged through an external pipe, and the oil returns to the gearbox through the oil hole.

[0026] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that features described in conjunction with individual embodiments may be used in other described embodiments.

Claims

1. An oil and gas filter device with an external flange, characterized in that: The oil and gas filtering device with an external flange comprises an outer cover shell (2), a bushing (4), an upper cover (5), a first filter screen (7) and a second filter screen (8); the air inlet end of the outer cover shell (2) is connected to the air outlet end of the box body (1); the air outlet end of the outer cover shell (2) is fixedly connected to the bushing (4); the air inlet end of the bushing (4) is fixedly connected to the first filter screen (7); the outer end of the bushing (4) is fixedly connected to the upper cover (5); the air inlet end of the upper cover (5) is fixedly connected to the second filter screen (8); and the air outlet end of the upper cover (5) is provided with a flange (5-1); The bushing (4) is in the shape of a cylinder with an open outer end and a closed inner end. A fixed disc (4-1) is provided on the outer wall of the bushing (4) along the circumferential direction. The fixed disc (4-1) is fixedly connected to the port of the air outlet end of the outer casing (2). A plurality of air inlet holes (4-2) are evenly distributed on the outer wall of the inner end of the bushing (4) along the circumferential direction. The first filter screen (7) is fixedly connected to the inner wall of the inner end of the bushing (4) and is located on the inner side of the air inlet hole (4-2). A sleeve (6) is fixedly connected to the inner side of the sleeve (4), and the sleeve (6) is fixedly connected between the end surface of the inner side end of the sleeve (4) and the end surface of the air inlet end of the upper cover (5). A horizontal partition (6-1) is fixedly connected to the middle part of the outer side wall of the sleeve (6) along the circumferential direction, and the outer side of the horizontal partition (6-1) is fixedly connected to the inner circumferential side wall of the sleeve (4). A plurality of groups of ventilation holes (6-2) are evenly distributed along the circumferential direction on the tube wall of the sleeve (6), and each group of ventilation holes (6-2) includes a plurality of ventilation holes (6-2) evenly distributed along the length direction. A plurality of first oil return holes (4-4) are evenly distributed on the end surface of the inner end of the bushing (4), the first oil return holes (4-4) are arranged on the inner side of the sleeve (6), and a plurality of second oil return holes (6-3) are evenly distributed along the circumferential direction on the horizontal partition plate (6-1).

2. The oil and gas filtering device with an external flange according to claim 1, characterized in that: The first filter screen (7) is arranged on the lower side of the horizontal partition (6-1).

3. The oil and gas filtering device with an external flange according to claim 1, characterized in that: A vent pipe (5-2) is provided in the middle of the upper cover (5), a flange (5-1) is fixedly connected to the outlet end of the vent pipe (5-2), a connecting end plate (5-3) is fixedly connected to the inlet end of the vent pipe (5-2), the connecting end plate (5-3) is fixedly connected to the outer open end of the bushing (4), an exhaust through hole (5-4) is provided in the middle of the connecting end plate (5-3), a plurality of exhaust holes (5-5) are evenly distributed along the circumferential direction on the outer side of the exhaust through hole (5-4), the exhaust through hole (5-4) is arranged on the inner side of the sleeve (6), the exhaust holes (5-5) are arranged on the outer side of the sleeve (6), a second filter screen (8) is fixedly connected to the upper end surface of the connecting end plate (5-3) and is arranged on the inner side of the vent pipe (5-2), and the second filter screen (8) is located on the inner side of the exhaust through hole (5-4) and the exhaust hole (5-5).

4. The oil and gas filtering device with an external flange according to claim 1, 2 or 3, characterized in that: The shape of the outer cover shell (2) is a funnel shape, the small end of the outer cover shell (2) is an air inlet end, and the large end of the outer cover shell (2) is an air outlet end.

5. The oil and gas filtering device with an external flange according to claim 3, characterized in that: A connecting disc (2-1) is fixedly connected to the outer wall of the air inlet end of the outer cover shell (2) along the circumferential direction, and the connecting disc (2-1) is fixedly connected to the box body (1). A connecting flange (2-2) is fixedly connected to the outer wall of the air outlet end of the outer cover shell (2) along the circumferential direction, and the connecting flange (2-2) is fixedly connected to the fixed disc (4-1).

6. The oil and gas filtering device with an external flange according to claim 5, characterized in that: A fixing flange (4-3) is provided on the outer wall of the outer end of the bushing (4) along the circumferential direction, and the fixing flange (4-3) is fixedly connected to the connecting end plate (5-3).

7. The oil and gas filtering device with an external flange according to claim 6, characterized in that: Gaskets (3) are provided between the connecting flange (2-2) and the fixed disc (4-1) and between the fixed flange (4-3) and the connecting end plate (5-3).

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