A breathing converter

Abstract

This invention discloses a breathing converter, comprising: a housing, a vent pipe, and a pendulum; wherein, the housing is fastened to the top center of an oil reservoir, and its bottom has a vent hole aligned with the vent of the oil reservoir; the vent pipe is rotatably installed inside the housing, and has an exhaust inlet located inside the housing, and an exhaust outlet extending from the top of the housing; wherein, the pendulum is installed at the opposite end of the exhaust inlet. This invention automatically changes the position of the exhaust inlet under the action of gravity, ensuring that the exhaust inlet is always located above the reducer or oil tank, thus solving the problems of hydraulic oil overflow and high-pressure air failure caused by changes in the tank angle.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and in particular to a breathing converter. Background Technology

[0002] Currently, in the application of tunneling machines, the entire machine sometimes faces frequent uphill or downhill travel. During this time, the oil level in the tank and reducer changes angle relative to the housing. Additionally, the reducer swings at a large angle continuously with the up-and-down movement of the cutting arm during operation. In both of these situations, regardless of whether the air filter is placed in front of or behind the reducer and oil tank, hydraulic oil may leak out at a certain angle. Therefore, most tunneling machines choose not to install air filters, as this prevents high-pressure air from escaping from the reducer housing during operation. Furthermore, when facing frequent high-slope operations, installing air filters in front of and behind the hydraulic oil tank requires workers to constantly adjust the installation points according to angle changes, which is very cumbersome and makes the hydraulic oil highly susceptible to contamination. Summary of the Invention

[0003] The purpose of this invention is to overcome the problems existing in the prior art and provide a breathing converter that automatically changes the position of the exhaust inlet under the action of gravity, so that the exhaust inlet is always located above the reducer or oil tank, thus solving the problems of hydraulic oil overflow and high-pressure air failure caused by changes in the angle of the housing.

[0004] To achieve the above-mentioned objectives of this invention, the following technical solutions are provided:

[0005] A breathing converter includes: a housing, a venting tube, and a pendulum; wherein the housing is fastened to the top center of an oil reservoir, and its bottom has a vent hole aligned with the vent of the oil reservoir; the venting tube is rotatably mounted inside the housing, and has an exhaust inlet located inside the housing and an exhaust outlet extending from the top of the housing; wherein the pendulum is mounted at the opposite end of the exhaust inlet.

[0006] Preferably, the vent pipe is inverted T-shaped and includes: a horizontal vent pipe located inside the housing, wherein the exhaust inlet and the pendulum are located at opposite ends of the horizontal vent pipe; and a vertical vent pipe vertically disposed above the horizontal vent pipe, wherein one end of the vertical vent pipe is the exhaust outlet and the other end is connected to the horizontal vent pipe.

[0007] Preferably, the other end of the ventilation vertical pipe is connected to the middle of the ventilation horizontal pipe.

[0008] Preferably, the exhaust outlet extends from the top of the housing and is connected to the air filter.

[0009] Preferably, the exhaust inlet is positioned above the top of the oil storage tank.

[0010] Preferably, the ventilation riser is connected to the housing via a bearing.

[0011] Preferably, an oil seal is provided between the venting riser and the housing.

[0012] Preferably, the oil seal is mounted on an oil seal seat, and the oil seal seat is sealed to the housing.

[0013] Preferably, a sealing ring is provided at the junction of the vent and the vent hole.

[0014] Preferably, the oil storage tank is a hydraulic oil tank or a reducer.

[0015] The beneficial effects of this invention are reflected in the following aspects: when the tunneling machine travels up and down slopes or the cutting arm swings up and down, the pendulum automatically swings to below the exhaust inlet under the action of gravity with the bearing as the center of rotation, so that the exhaust inlet is always located above the reducer or hydraulic oil tank cavity; since the exhaust inlet is always in a gas environment, the high-pressure gas is discharged from the air filter through the vent pipe, and the hydraulic oil will not overflow from the air filter through the vent pipe. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the breathing converter of the present invention;

[0017] Figure 2 yes Figure 1 The AA section view shown;

[0018] Figure 3 yes Figure 2 The enlarged view of part I shown.

[0019] Explanation of reference numerals in the attached drawings: 1-Housing; 1a, 1b-Ventilation holes; 2-Pendulum; 3-Ventilation pipe; 3a-Exhaust inlet; 3b-Exhaust outlet; 31-Vertical ventilation pipe; 32-Horizontal ventilation pipe; 4-Air filter; 5-O-ring; 6-Bolt; 7-Oil reservoir; 7a, 7b-Ventilation ports; 8-Oil seal seat; 9-Bolt; 10-Washer; 11-Oil seal; 12-Bearing; 13-O-ring. Detailed Implementation

[0020] like Figure 1 and 2As shown, the present invention provides a breathing converter, comprising: a housing 1, a ventilation tube 3, and a pendulum 2; wherein, the housing 1 is fastened to the top center of an oil storage tank 7, and its bottom has ventilation holes 1a and 1b aligned with the ventilation ports 7a and 7b of the oil storage tank 7; the ventilation tube 3 is rotatably installed inside the housing 1, and has an exhaust inlet 3a located inside the housing 1, and an exhaust outlet 3b extending from the top of the housing 1; wherein, the pendulum 2 is installed at the opposite end of the exhaust inlet 3a. When the angle of the oil storage tank 7 relative to the horizontal plane changes, the liquid level in the oil storage tank will change angle with the oil storage tank. At this time, the pendulum 2 will automatically rotate downward under the action of gravity, thereby ensuring that the exhaust inlet 3a is always located above the oil storage tank, preventing liquid from overflowing to the outside through the exhaust inlet.

[0021] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0022] like Figure 2 As shown, this embodiment provides a breathing converter, including: a housing 1, an airway 3, and a pendulum 2.

[0023] like Figure 1 and 2 As shown, the housing 1 is fastened to the top center of the oil tank 7; in one embodiment of this example, the housing 1 is fastened to the top center of the oil tank 7 by bolts 6 and washers. Of course, fastening methods well known to those skilled in the art can also be used, such as welding, integral structure design, etc. Figure 1 As shown, the bottom of the housing 1 has vent holes 1a and 1b that are aligned with the vents 7a and 7b of the oil tank 7, so that the high-pressure gas generated by the oil tank 7 can enter the interior of the housing 1 through the vent holes 1a and 1b; wherein, a sealing ring is provided at the junction of the vent 7a and the vent hole 1a, and the vent 7b and the vent hole 1b to achieve sealing. In one embodiment of this example, the sealing ring is an O-ring 5, but other sealing rings with structures known to those skilled in the art can also be used to achieve sealing.

[0024] like Figure 2 As shown, the vent pipe 3 is rotatably installed inside the housing 1, and has an exhaust inlet 3a located inside the housing 1 and an exhaust outlet 3b extending from the top of the housing 1; wherein, the pendulum 2 is installed at the opposite end of the exhaust inlet 3a, and the exhaust inlet 3a is set above the top of the oil storage tank 7. In this way, the pendulum 2 is always located below the exhaust inlet 3a under the action of gravity, so that the exhaust inlet 3a is always located above the top of the oil storage tank, preventing liquid from overflowing to the outside through the exhaust inlet.

[0025] In one embodiment of this example, such as Figure 2As shown, the vent pipe 3 is inverted T-shaped and includes a horizontal vent pipe 32 and a vertical vent pipe 31. The horizontal vent pipe 32 is located inside the housing 1, with the exhaust inlet 3a and the pendulum 2 located at opposite ends. In one embodiment, the pendulum 2 is welded to the horizontal vent pipe 32. The vertical vent pipe 31 is vertically positioned above the horizontal vent pipe 32, with one end serving as the exhaust outlet 3b and the other end connected to the horizontal vent pipe 32. In another embodiment, the other end of the vertical vent pipe 31 is connected to the middle of the horizontal vent pipe 32.

[0026] Furthermore, in this embodiment, the exhaust outlet 3b extends from the top of the housing 1 and connects to the air filter 4. Thus, the high-pressure gas generated by the oil reservoir 7 is discharged from the air filter 4 through the vent pipe 3.

[0027] In one embodiment of this example, as Figure 3 As shown, the ventilation riser 31 is connected to the housing 1 via the bearing 12.

[0028] Furthermore, such as Figure 3 As shown, an oil seal 11 is provided between the venting riser 31 and the housing 1. The oil seal 11 enables a seal between the venting pipe 3 and the housing 1 when the venting pipe 3 rotates relative to the housing 1. The oil seal 11 is mounted on an oil seal seat 8, which is sealed to the housing 1. In one embodiment, the oil seal seat 8 is fastened to the housing 1 by bolts 9 and washers 10; and an O-ring 13 is provided between the oil seal seat 8 and the housing 1.

[0029] In this embodiment, the oil storage tank 7 is a hydraulic oil tank or a reducer. When the tunneling machine travels up or down slopes or the cutting arm swings up and down, the pendulum 2 automatically swings to below the exhaust inlet 3a under the action of gravity with the bearing 12 as the rotation center, so that the exhaust inlet 3a is always located above the reducer or hydraulic oil tank cavity. Since the exhaust inlet 3a is always in a gas environment, the high-pressure gas is discharged from the air filter 4 through the vent pipe 3.

[0030] It should be noted that the oil storage tank 7 can be the reducer or hydraulic oil tank of the tunneling machine, or any sealed tank such as an oil tank or water tank that requires gas exchange, thus avoiding the problem of liquid overflowing from the air filter due to changes in the angle of the tank.

[0031] Although the present invention has been described in detail above, the present invention is not limited thereto. Those skilled in the art can make modifications based on the principles of the present invention. Therefore, all modifications made in accordance with the principles of the present invention should be understood as falling within the protection scope of the present invention.

Claims

1. A breathing converter for a tunneling machine, characterized in that, include: A housing fastened to the center of the top of the oil storage tank of the tunneling machine, with a vent at the bottom that is aligned with the vent of the oil storage tank of the tunneling machine; The inverted T-shaped vent pipe is rotatably installed inside the housing, including: a horizontal vent pipe located inside the housing, one end of which is an exhaust inlet; and a vertical vent pipe vertically arranged above the horizontal vent pipe, one end of which is an exhaust outlet and the other end of which is connected to the horizontal vent pipe; wherein, the exhaust outlet extends from the top of the housing and is connected to an air filter. A pendulum mounted on the vent pipe and located at the opposite end of the exhaust inlet; The pendulum is always positioned below the exhaust inlet under the influence of gravity, ensuring that the exhaust inlet is always above the oil reservoir. The exhaust outlet is always in a gaseous environment. The high-pressure gas generated by the oil reservoir is discharged from the air filter through the vent pipe, and the hydraulic oil will not overflow from the air filter through the vent pipe.

2. The breathing converter according to claim 1, characterized in that, The other end of the ventilation vertical pipe is connected to the middle of the ventilation horizontal pipe.

3. The breathing converter according to claim 1, characterized in that, The exhaust inlet is positioned above the top of the oil storage tank.

4. The breathing converter according to any one of claims 1 to 3, characterized in that, The ventilation riser is connected to the housing via a bearing.

5. The breathing converter according to claim 4, characterized in that, An oil seal is provided between the venting riser and the housing.

6. The breathing converter according to claim 5, characterized in that, The oil seal is mounted on the oil seal seat, and the oil seal seat is sealed to the housing.

7. The breathing converter according to claim 1, characterized in that, A sealing ring is provided at the junction of the vent and the vent hole.

8. The breathing converter according to claim 1, characterized in that, The oil storage tank is a hydraulic oil tank or a reducer.

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