CN111396381A - Hydraulic oil tank with built-in leather bag and capable of rotating - Google Patents
Hydraulic oil tank with built-in leather bag and capable of rotating Download PDFInfo
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- CN111396381A CN111396381A CN202010378762.0A CN202010378762A CN111396381A CN 111396381 A CN111396381 A CN 111396381A CN 202010378762 A CN202010378762 A CN 202010378762A CN 111396381 A CN111396381 A CN 111396381A
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- vent
- vent hole
- oil tank
- air
- air bag
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/26—Supply reservoir or sump assemblies
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
Abstract
The invention provides a rotatable hydraulic oil tank with a built-in leather bag, which comprises an oil tank, wherein an air bag is fixedly arranged in the oil tank, a first vent hole is formed in the air bag, a second vent hole is formed in the oil tank, the first vent hole is communicated with the second vent hole, a vent rod is fixedly arranged in the second vent hole, the end part of the inner end of the vent rod is positioned in the air bag, vent holes are distributed on the end part of the inner end of the vent rod, the vent holes are communicated with an air channel arranged in the vent rod, and the second vent hole and the air channel are communicated with the outside air. By arranging the vent rod at the vent hole of the air bag, on one hand, the contracted air bag can be effectively prevented from blocking the vent hole on the oil tank; on the other hand, the vent holes are distributed on the vent rod, so that the air pressure at the vent hole of the oil tank can be relieved in an effective mode, and the air bag is prevented from being damaged due to the fact that the air bag is stretched due to the fact that the vent hole is blocked.
Description
Technical Field
The invention relates to a hydraulic oil tank, in particular to a rotatable hydraulic oil tank with a built-in leather bag.
Background
At present, the known hydraulic oil tanks generally adopt the following two modes (open type oil tank and closed type oil tank):
1. open type oil tank (as figure 4)
The hydraulic oil tank is simple in structure and suitable for most occasions. The method is characterized in that: the liquid level of the oil in the oil tank is connected with the atmosphere through an air filter on the oil tank, so that the change of the volume when the oil is needed during the operation of the equipment is met (the air can supplement the change of the liquid level in the oil tank).
The disadvantages are as follows: a. because the air outside the oil tank is often mixed and exchanged with the air inside the oil tank, the pollution (moisture and dust) to the hydraulic oil in the oil tank can be caused, and the oil tank is suitable for occasions with relatively good working environments. b. Because the inside of the oil tank is connected with the outside atmosphere, the oil tank can only be horizontally placed for preventing oil liquid in the oil tank from overflowing.
2. Closed oil tank (as figure 5)
The method is characterized in that: the closed oil tank means that the liquid level of oil in the oil tank is not directly connected with the atmosphere, but inert gas (generally 0.05 MPa) with certain pressure is filled into the oil tank through an air charging hole to meet the change of the volume when the equipment needs oil during working.
The disadvantages are as follows: a. the fuel tank is required to prevent leakage of the pressurized gas by excellent sealability. b. The volume of the tank itself needs to be increased to accommodate the pressurized gas. C. The pressure gas contacts with the oil liquid, so that the gas content in the oil liquid is increased, and the accurate control of a hydraulic system is not facilitated.
The advantages are that: the oil tank can realize the upset of certain degree (avoid pressure gas to link to each other with the system oil inlet, hydraulic system suction gas).
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a hydraulic oil tank which is internally provided with a leather bag and can rotate.
The utility model provides a built-in leather bag and rotatable position's hydraulic tank, includes the oil tank, its characterized in that: the fuel tank is internally and fixedly provided with an air bag, the air bag is provided with a first vent hole, the fuel tank is provided with a second vent hole, the first vent hole is communicated with the second vent hole, a vent rod is fixedly arranged in the second vent hole, the end part of the inner end of the vent rod is positioned in the air bag, vent holes are distributed on the end part of the inner end of the vent rod, the vent holes are communicated with an air channel arranged in the vent rod, and the second vent hole and the air channel are communicated with the outside air.
The working principle of the invention is as follows: a rubber leather bag, namely an air bag, is fixedly arranged in the oil tank, and the interior of the air bag is connected with the atmosphere. When the air bag is in a normal shape state, oil in the oil tank is in a minimum state; the oil in the oil tank is the most in the compressed state of the air bag. When the volume of oil in the tank changes, the volume change in the oil tank is compensated through the shape and the volume change of the leather bag, so that the oil and the air are isolated by a physical isolation mode, and the oil and the air are effectively isolated. In addition, as the hydraulic pressure in the oil tank is high, when the air bag contracts and changes, the air bag is easily blocked at the second vent hole and is stretched towards the second vent hole by hydraulic pressure, so that the air bag is damaged; the air vent rod is arranged, the air bag is abutted to the air vent rod during contraction, air holes are distributed in the air vent rod, the air holes and the second air holes have partial pressure ventilation effect, the air bag can be effectively prevented from blocking the second air holes or blocking the air holes, the air bag can be effectively prevented from blocking the second air holes, and meanwhile, the air in the air bag can be effectively communicated with external air through the air holes.
Further comprises the following steps: the air bag is a rubber bag and is in a cylindrical shape, the first vent hole is positioned at one end of the air bag, a joint is fixedly installed on the first vent hole, the joint penetrates through the second vent hole, the end part of the inner end of the joint is sealed with the oil tank, and the end part of the outer end of the joint is fixedly connected to the oil tank; the ventilation rod penetrates through the joint.
Further comprises the following steps: a stop block is arranged at the end part of the outer end of the ventilation rod and is stopped on the joint, an exhaust groove is formed in the end surface of the outer end of the ventilation rod, the air channel is communicated with the exhaust groove, and the exhaust groove is positioned outside the joint; a nut is fixedly sleeved on the end part of the outer end of the joint, and an exhaust hole is formed in the outer end of the nut; the ventilation bar is in clearance fit with the joint. The outer end of the ventilation rod is in contact with the bottom surface of the nut, and the air discharge groove prevents the nut from blocking the air channel.
The invention has the beneficial effects that: a) by arranging the vent rod at the vent hole of the air bag, on one hand, the contracted air bag can be effectively prevented from blocking the vent hole on the oil tank; on the other hand, the vent holes are distributed on the vent rod, so that the air pressure at the vent hole of the oil tank can be relieved in an effective mode, and the air bag is prevented from being damaged due to the fact that the air bag is stretched due to the fact that the vent hole is blocked. b) Through the change of the shape and the volume of the leather bag, when the volume of oil in the oil tank is not influenced, the oil is effectively isolated from the air. c) Because the oil tank is free of air and is completely sealed and isolated from the outside, the oil tank can rotate freely together with the equipment to change the position, and the working stability of the hydraulic system is not influenced.
Drawings
FIG. 1 is a schematic cross-sectional view of the present invention;
FIG. 2 is a schematic structural diagram of the area A in FIG. 1;
FIG. 3 is a schematic view of the structure of the bladder of the present invention;
FIG. 4 is a schematic structural view of an open type fuel tank in the prior art;
fig. 5 is a schematic structural diagram of a closed fuel tank in the prior art.
In the figure, 1, a fuel tank; 2. an air bag; 21. an airbag body; 22. a joint; 3. a nut; 31. an exhaust hole; 4. a seal ring; 5. a ventilation bar; 51. an exhaust groove; 52. air passing holes; 53. an air passage; 54. a stopper; 1a, oil liquid; 2a, oil liquid; 3a, an oil tank; 4a, an air filter; 5a, a motor and a control part; 1b, oil liquid; 2b, an oil tank; 3b, pressure gas; 4b, an inflation valve; 5b, a motor and a control part.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings. It should be noted that the terms of orientation such as left, middle, right, up and down in the examples of the present invention are only relative concepts or reference to the normal use state of the product, and should not be considered as limiting.
A bladder-built, rotatably positionable hydraulic tank, as shown in figures 1 and 2, comprises a tank 1, the working pressure of the oil tank 1 is within 0-2 Mpa, the working pressure of the hydraulic system is less than 21Mpa, an air bag 2 is fixedly arranged in the oil tank 1, the air bag 2 is provided with a first vent hole, the oil tank 1 is provided with a second vent hole, the first vent hole is communicated with the second vent hole, a ventilation rod 5 is fixedly arranged in the second ventilation hole, the inner end part of the ventilation rod 5 is positioned in the air bag 2, air passing holes 52 are distributed on the inner end part of the ventilation rod 5, the air passing holes 52 are 1.5-8 mm, the specification and size of the air passing holes 52 are inversely proportional to the working pressure of the oil tank 1, the air passing holes 52 are communicated with an air channel 53 arranged in the ventilation rod 5, and the second air passing holes and the air channel 53 are communicated with the outside air.
As shown in fig. 3, the airbag 2 is a rubber bag and has a cylindrical shape, the first vent hole is located at one end of the airbag 2, a joint 22 is fixedly installed on the first vent hole, the joint 22 penetrates through the second vent hole, an inner end of the joint 22 is hermetically arranged with the oil tank 1, and an outer end of the joint 22 is fixedly connected to the oil tank 1; the ventilation bar 5 penetrates through the joint 22;
a stopper 54 is arranged at the end part of the outer end of the ventilation rod 5, the stopper 54 is stopped on the joint 22, an air discharge groove 51 is arranged on the end surface of the outer end of the ventilation rod 5, the air passage 53 is communicated with the air discharge groove 51, and the air discharge groove 51 is positioned outside the joint 22; a nut 3 is fixedly sleeved on the end part of the outer end of the joint 22, and an exhaust hole 31 is formed in the outer end of the nut 3; the ventilation bar 5 is clearance-fitted to the joint 22.
The working principle of the invention is as follows: a rubber leather bag, namely an air bag, is fixedly arranged in the oil tank, and the interior of the air bag is connected with the atmosphere. When the air bag is in a normal shape state, oil in the oil tank is in a minimum state; the oil in the oil tank is the most in the compressed state of the air bag. When the volume of oil in the tank changes, the volume change in the oil tank is compensated through the shape and the volume change of the leather bag, so that the oil and the air are isolated by a physical isolation mode, and the oil and the air are effectively isolated. In addition, as the hydraulic pressure in the oil tank is high, when the air bag contracts and changes, the air bag is easily blocked at the second vent hole and is stretched towards the second vent hole by hydraulic pressure, so that the air bag is damaged; the ventilation rod that sets up supports on the ventilation rod during gasbag shrink to it has the gas pocket to distribute on the ventilation rod, and gas pocket and second gas pocket have partial pressure ventilation effect simultaneously, can prevent effectively that the gasbag from blockking up second gas pocket or blockking up the gas pocket, and the gas of guaranteeing in the gasbag simultaneously can effectively communicate with each other with external air through the gas pocket. Due to the arrangement of the air bag, the oil tank can be randomly changed in installation angle or rotated in any space direction.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. The utility model provides a built-in leather bag and rotatable position's hydraulic tank, includes the oil tank, its characterized in that: the fuel tank is internally and fixedly provided with an air bag, the air bag is provided with a first vent hole, the fuel tank is provided with a second vent hole, the first vent hole is communicated with the second vent hole, a vent rod is fixedly arranged in the second vent hole, the end part of the inner end of the vent rod is positioned in the air bag, vent holes are distributed on the end part of the inner end of the vent rod, the vent holes are communicated with an air channel arranged in the vent rod, and the second vent hole and the air channel are communicated with the outside air.
2. A bladder-embedded, rotatably positionable hydraulic tank as set forth in claim 1, wherein: the air bag is a rubber bag and is in a cylindrical shape, the first vent hole is positioned at one end of the air bag, a joint is fixedly installed on the first vent hole, the joint penetrates through the second vent hole, the end part of the inner end of the joint is sealed with the oil tank, and the end part of the outer end of the joint is fixedly connected to the oil tank; the ventilation rod penetrates through the joint.
3. A bladder-embedded, rotatably positionable hydraulic tank as set forth in claim 2, wherein: a stop block is arranged at the end part of the outer end of the ventilation rod and is stopped on the joint, an exhaust groove is formed in the end surface of the outer end of the ventilation rod, the air channel is communicated with the exhaust groove, and the exhaust groove is positioned outside the joint; a nut is fixedly sleeved on the end part of the outer end of the joint, and an exhaust hole is formed in the outer end of the nut; the ventilation bar is in clearance fit with the joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010378762.0A CN111396381A (en) | 2020-05-07 | 2020-05-07 | Hydraulic oil tank with built-in leather bag and capable of rotating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010378762.0A CN111396381A (en) | 2020-05-07 | 2020-05-07 | Hydraulic oil tank with built-in leather bag and capable of rotating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111396381A true CN111396381A (en) | 2020-07-10 |
Family
ID=71426762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010378762.0A Pending CN111396381A (en) | 2020-05-07 | 2020-05-07 | Hydraulic oil tank with built-in leather bag and capable of rotating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111396381A (en) |
-
2020
- 2020-05-07 CN CN202010378762.0A patent/CN111396381A/en active Pending
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