CN109972687B - Oil tank of excavator - Google Patents
Oil tank of excavator Download PDFInfo
- Publication number
- CN109972687B CN109972687B CN201910334649.XA CN201910334649A CN109972687B CN 109972687 B CN109972687 B CN 109972687B CN 201910334649 A CN201910334649 A CN 201910334649A CN 109972687 B CN109972687 B CN 109972687B
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- CN
- China
- Prior art keywords
- sealing
- oil tank
- sealing plate
- hole section
- excavator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/0861—Cleaning crates, boxes or the like
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
- B08B9/08—Cleaning containers, e.g. tanks
- B08B9/093—Cleaning containers, e.g. tanks by the force of jets or sprays
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0883—Tanks, e.g. oil tank, urea tank, fuel tank
Abstract
An oil tank of an excavator is arranged at the middle part of the excavator, and the bottom of the oil tank is sealed by a peripheral sealing plate and a middle sealing plate; the peripheral sealing plate is welded with the side wall of the oil tank, a cleaning through hole is formed in the middle of the peripheral sealing plate, and the middle sealing plate is arranged at the cleaning through hole to realize sealing; the middle part of the middle sealing plate is provided with a vent hole communicated to the inside of the oil tank, and one end of the vent hole positioned in the oil tank is provided with an air injection cleaning pipe. The bottom of the oil tank of the excavator is provided with a peripheral sealing plate and a middle sealing plate, and the middle sealing plate is provided with a vent hole and an air injection cleaning pipe which is arranged in the tank body and communicated with the vent hole; when the inside of the oil tank needs to be cleaned, the air injection cleaning pipe is ventilated, so that the inner wall of the oil tank can be flushed and cleaned, and the middle sealing plate can be detached, so that impurities in the oil tank can be thoroughly removed.
Description
Technical Field
The invention relates to the field of excavator structures, in particular to an excavator oil tank.
Background
The excavator becomes the king of engineering machinery and is widely applied to various occasions, including various severe working conditions. For China in the period of increasing the development speed of town, the foundation construction of the foundation is well-developed, the requirements on the excavator are more and more widely met, in the daily maintenance and repair process, because diesel is used for providing power for the excavator, and the fuel tank is more in impurities precipitated after long-time use, the diesel is more viscous and easy to precipitate and block an oil way, so that the excavator cannot work well for a long time, and the oil tank of the excavator is frequently cleaned. Otherwise, a large amount of precipitated impurities can enter the oil pipe when the excavator works, so that the dirt blockage of the filter and the abrasion of the precise coupling parts are accelerated, and the normal use of the engine is further affected. At present, the cleaning of the fuel tank is carried out by extending the spray head connected with the compressed air hose into the fuel tank from the mounting opening of the fuel tank cover, so that the inside of the fuel tank is flushed completely, the position of the spray head is required to be continuously changed during operation, the whole cleaning process is time-consuming and labor-consuming, and the operation is not easy.
Patent application number CN201610524097.5 discloses an easy clear integral type excavator oil tank, and the lateral part downside of its box is equipped with the oil-out respectively, and the bottom side of box is the arc, although makes the inside impurity of box deposit the oil-out under the effect of arc bottom side easily, but still be difficult to clear away to some impurity that adheres to with the box inner wall relatively firmly.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an excavator oil tank, wherein the bottom of the excavator oil tank is provided with a peripheral sealing plate and a middle sealing plate, and the middle sealing plate is provided with a vent hole and an air injection cleaning pipe which is arranged in the tank body and communicated with the vent hole; when the inside of the oil tank needs to be cleaned, the air injection cleaning pipe is ventilated, so that the inner wall of the oil tank can be flushed and cleaned, and the middle sealing plate can be detached, so that impurities in the oil tank can be thoroughly removed.
The specific technical scheme of the invention is as follows: an oil tank of an excavator is arranged at the middle part of the excavator, and the bottom of the oil tank is sealed by a peripheral sealing plate and a middle sealing plate; the peripheral sealing plate is welded with the side wall of the oil tank, a cleaning through hole is formed in the middle of the peripheral sealing plate, and the middle sealing plate is arranged at the cleaning through hole to realize sealing; the middle part of the middle sealing plate is provided with a vent hole communicated to the inside of the oil tank, and one end of the vent hole positioned in the oil tank is provided with an air injection cleaning pipe.
Therefore, when the inside of the oil tank needs to be cleaned, the air injection cleaning pipe is ventilated, the inner wall of the oil tank can be flushed and cleaned, the middle sealing plate can be detached, and impurities in the oil tank can be thoroughly removed conveniently.
Preferably, the middle sealing plate comprises an embedded mounting part and an outer sealing mounting part, the embedded mounting part is in clearance fit sealing with the cleaning through hole, and the outer sealing mounting part is in fit sealing with the outer side of the outer sealing plate.
Therefore, the middle sealing plate is matched and sealed with the peripheral sealing plate through the embedded mounting part and the outer sealing mounting part respectively, so that oil can be prevented from leaking.
In the invention, preferably, a first sealing groove is formed in the circumference of the embedded mounting part, a second sealing groove is formed in one side, close to the peripheral sealing plate, of the outer sealing mounting part, and O-shaped rings are respectively mounted in the first sealing groove and the second sealing groove for sealing.
Therefore, the first sealing groove and the second sealing groove ensure reliable sealing performance through the O-shaped ring seal respectively.
As the preferable mode of the invention, the periphery of the outer seal installation part, which is positioned at the periphery of the second seal groove, is provided with installation through holes distributed in a circumferential array, and the position of the peripheral seal plate, which is opposite to the installation through holes, is provided with a threaded installation hole; and the bolts penetrate through the mounting through holes and then are fastened with the threaded mounting holes, so that the middle sealing plate and the peripheral sealing plate are locked and sealed.
Therefore, the middle sealing plate and the peripheral sealing plate are convenient to assemble and disassemble through the bolts.
As the preferable mode of the invention, the air injection cleaning pipe is vertically arranged at the middle part of the oil tank, the upper end of the air injection cleaning pipe is plugged, and air injection micropores which are used for communicating the inner holes with the outside are densely distributed on the pipe body.
Therefore, the diameter of the air injection micropore is not more than 2mm, and air is injected from the air injection micropore to ensure the injection force, so that the inner wall of the oil tank is flushed.
Preferably, the vent hole comprises a large hole section positioned at one side of the inner part of the oil tank and a small hole section positioned at one side of the outer part of the oil tank; a one-way sealing steel ball is arranged in the big hole section, and the diameter of the one-way sealing steel ball is larger than the diameter of the small hole section and the inner diameter of the jet cleaning pipe and smaller than the big hole Duan Zhijing; the jet cleaning pipe is arranged at the orifice of the large hole section, the unidirectional sealing steel balls are sealed in the large hole section, and the unidirectional sealing steel balls are positioned at the steps of the small hole section and the large hole section under the action of gravity to form sealing.
Therefore, when the vent hole is ventilated from the outside to the inside, gas can jack the unidirectional sealing steel ball to enter the jet cleaning pipe, so that the inner wall of the oil tank is flushed; and the oil in the oil tank cannot flow out under the sealing effect of the unidirectional sealing steel balls.
As the preference of the invention, a spring is also arranged in the big hole section, and the spring is arranged between the jet cleaning pipe and the unidirectional sealing steel ball to press the unidirectional sealing steel ball to the step of the small hole section and the big hole section to form a seal.
Therefore, the unidirectional sealing steel ball is matched with the spring for use, so that the sealing effect is better.
Preferably, the small bore section is threaded adjacent to the outer bore section.
From this, the outside drill way section of aperture section is equipped with the screw thread and can install stifled when ordinary use and carry out better sealedly, installs the crossover sub and ventilates when needs wash and realize to the washing of oil tank.
In summary, the invention has the following beneficial effects:
the bottom of the oil tank of the excavator is provided with a peripheral sealing plate and a middle sealing plate, and the middle sealing plate is provided with a vent hole and an air injection cleaning pipe which is arranged in the tank body and communicated with the vent hole; when the inside of the oil tank needs to be cleaned, the air injection cleaning pipe is ventilated, so that the inner wall of the oil tank can be flushed and cleaned, and the middle sealing plate can be detached, so that impurities in the oil tank can be thoroughly removed.
Drawings
FIG. 1 is a schematic illustration of an excavator sump of the present invention mounted on an excavator;
FIG. 2 is a front cross-sectional view of the sump of the excavator of the present invention;
FIG. 3 is a bottom view of the sump of the excavator of the present invention;
FIG. 4 is an enlarged view of a portion of the present invention at the vent of the middle seal plate of the excavator sump;
in the figure, 1-oil tank, 11-peripheral sealing plate, 111-cleaning through hole, 112-threaded mounting hole, 12-middle sealing plate, 121-vent hole, 1211-large hole section, 1212-small hole section, 1213-unidirectional sealing steel ball, 1214-spring, 122-embedded mounting part, 1221-first sealing groove, 123-outer sealing mounting part, 1231-second sealing groove, 1232-mounting through hole, 13-air-jet cleaning pipe, 131-air-jet micropore, 2-O-shaped ring and 3-bolt.
Detailed Description
The invention will be further illustrated by the following examples in conjunction with the accompanying drawings.
As shown in fig. 1, 2, 3 and 4, an oil tank 1 is arranged in the middle of an excavator, and the bottom of the oil tank 1 is sealed by a peripheral sealing plate 11 and a middle sealing plate 12; the peripheral sealing plate 11 is welded with the side wall of the oil tank 1, a cleaning through hole 111 is formed in the middle of the peripheral sealing plate, and the middle sealing plate 12 is arranged at the cleaning through hole 111 to realize sealing; the middle part of the middle sealing plate 12 is provided with a vent hole 121 communicated to the inside of the oil tank 1, and one end of the vent hole 121 positioned in the inside of the oil tank 1 is provided with an air jet cleaning pipe 13.
Therefore, when the inside of the oil tank needs to be cleaned, the air injection cleaning pipe 13 is ventilated, so that the inner wall of the oil tank 1 can be flushed and cleaned, the middle sealing plate 12 can be detached, and impurities in the oil tank 1 can be thoroughly removed conveniently.
As shown in fig. 2 and 4, the intermediate sealing plate 12 includes an embedded mounting portion 122 and an outer sealing mounting portion 123, the embedded mounting portion 122 is sealed with the cleaning through hole 111 in a clearance fit manner, and the outer sealing mounting portion 123 is sealed with the outer side of the outer sealing plate 11 in a fitting manner.
Thus, the intermediate seal plate 12 is sealed by the fit between the inner seal mounting portion 122 and the outer seal mounting portion 123 and the outer seal plate 11, respectively, so that it is ensured that oil does not leak.
As shown in fig. 2 and 4, a first seal groove 1221 is formed in the circumference of the embedded mounting portion 122, a second seal groove 1231 is formed in the side of the outer seal mounting portion 123 close to the outer seal plate 11, and O-rings 2 are respectively mounted in the first seal groove 1221 and the second seal groove 1231 to seal.
Thus, the first seal groove 1221 and the second seal groove 1231 are sealed by the O-ring 2, respectively, to ensure reliable sealing performance.
As shown in fig. 2, 3 and 4, the outer seal mounting portion 123 is provided with mounting through holes 1232 distributed in a circumferential array at the periphery of the second seal groove 1231, and a threaded mounting hole 112 is provided at a position of the peripheral seal plate 11 opposite to the mounting through holes 1232; the bolts 3 pass through the mounting holes 1232 and then are fastened to the screw mounting holes 112, so that the intermediate seal plate 12 and the peripheral seal plate 11 are tightly sealed.
Thereby, the middle sealing plate 12 and the peripheral sealing plate 11 are conveniently detached by the bolts 3.
As shown in fig. 2 and 4, the jet cleaning pipe 13 is vertically arranged in the middle of the oil tank 1, the upper end is plugged, and the pipe body is densely provided with jet micropores 131 for communicating the inner hole with the outside.
Therefore, the diameter of the air injection micropore 131 is not more than 2mm, and air is injected from the air injection micropore 131 to ensure injection force, so that the inner wall of the oil tank 1 is flushed.
As shown in fig. 2 and 4, the vent 121 includes a large hole section 1211 on the inner side of the fuel tank 1 and a small hole section 1212 on the outer side of the fuel tank 1; the large hole section 1211 is internally provided with a one-way sealing steel ball 1213, and the diameter of the one-way sealing steel ball 1213 is larger than the diameter of the small hole section 1212 and the inner diameter of the jet cleaning tube 13 and smaller than the diameter of the large hole section 1211; the jet cleaning tube 13 is installed at the orifice of the large hole section 1211, the unidirectional sealing steel ball 1213 is sealed in the large hole section 1211, and the unidirectional sealing steel ball 1213 is positioned at the step of the small hole section 1212 and the large hole section 1211 under the action of gravity to form a seal.
Therefore, when the vent hole 121 is ventilated from outside to inside, gas can prop up the unidirectional sealing steel ball 1213 to enter the jet cleaning pipe 13, so that the inner wall of the oil tank 1 is flushed; and the oil in the oil tank 1 cannot flow out under the sealing effect of the unidirectional sealing steel ball 1213.
As shown in fig. 2 and 4, a spring 1214 is further installed in the large hole section 1211, and the spring 1214 is installed between the jet cleaning tube 13 and the unidirectional sealing steel ball 1213 to press the unidirectional sealing steel ball 1213 to the step of the small hole section 1212 and the large hole section 1211 to form a seal.
Thus, the use of the one-way sealing steel ball 1213 in combination with the spring 1214 can make the sealing effect better.
As shown in fig. 2 and 4, the small bore section 1212 is threaded proximate to the outer bore section.
Therefore, the external orifice section of the small hole section 1212 is provided with threads, so that the small hole section can be well sealed by mounting the plug when in normal use, and the oil tank 1 can be cleaned by mounting the adapter for ventilation when cleaning is required.
The above examples are only illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical scheme of the present invention will fall within the protection scope of the present invention without departing from the design concept of the present invention, and the technical content of the present invention is fully described in the claims.
Claims (4)
1. An excavator oil tank, installs oil tank (1) in the middle part of excavator, its characterized in that: the bottom of the oil tank (1) is sealed by a peripheral sealing plate (11) and a middle sealing plate (12); the peripheral sealing plate (11) is welded with the side wall of the oil tank (1), a cleaning through hole (111) is formed in the middle of the peripheral sealing plate, and the middle sealing plate (12) is arranged at the cleaning through hole (111) to realize sealing; a vent hole (121) communicated to the inside of the oil tank (1) is formed in the middle part of the middle sealing plate (12), and an air injection cleaning pipe (13) is arranged at one end of the vent hole (121) positioned in the oil tank (1); the middle sealing plate (12) comprises an embedded mounting part (122) and an outer sealing mounting part (123), the embedded mounting part (122) is in clearance fit and seal with the cleaning through hole (111), and the outer sealing mounting part (123) is in fit and seal with the outer side of the peripheral sealing plate (11); a first sealing groove (1221) is formed in the circumference of the embedded mounting part (122), a second sealing groove (1231) is formed in one side, close to the peripheral sealing plate (11), of the outer sealing mounting part (123), and O-shaped rings (2) are respectively mounted in the first sealing groove (1221) and the second sealing groove (1231) for sealing; the air injection cleaning pipe (13) is vertically arranged at the middle part of the oil tank (1), the upper end of the air injection cleaning pipe is plugged, and air injection micropores (131) which are used for communicating the inner holes with the outside are densely distributed on the pipe body; the vent hole (121) comprises a large hole section (1211) positioned on one side of the interior of the oil tank (1) and a small hole section (1212) positioned on one side of the exterior of the oil tank (1); a unidirectional sealing steel ball (1213) is arranged in the large hole section (1211), and the diameter of the unidirectional sealing steel ball (1213) is larger than the diameter of the small hole section (1212) and the inner diameter of the jet cleaning pipe (13) and smaller than the diameter of the large hole section (1211); the jet cleaning pipe (13) is arranged at the orifice of the large hole section (1211), the unidirectional sealing steel ball (1213) is sealed in the large hole section (1211), and the unidirectional sealing steel ball (1213) is positioned at the step of the small hole section (1212) and the large hole section (1211) under the action of gravity to form a seal.
2. An excavator oil sump as claimed in claim 1 wherein: the outer seal mounting part (123) is positioned at the periphery of the second seal groove (1231) and provided with mounting through holes (1232) distributed in a circumferential array, and the position of the peripheral seal plate (11) opposite to the mounting through holes (1232) is provided with a threaded mounting hole (112); the bolt (3) passes through the mounting through hole (1232) and then is fastened with the threaded mounting hole (112), so that the middle sealing plate (12) and the peripheral sealing plate (11) are locked and sealed.
3. An excavator oil sump as claimed in claim 1 wherein: a spring (1214) is also arranged in the large hole section (1211), and the spring (1214) is arranged between the jet cleaning tube (13) and the unidirectional sealing steel ball (1213) to press the unidirectional sealing steel ball (1213) to the small hole section (1212) and the large hole section (1211) to form a seal.
4. An excavator oil sump as claimed in claim 1 wherein: the small bore section (1212) is threaded proximate to the outer bore section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910334649.XA CN109972687B (en) | 2019-04-24 | 2019-04-24 | Oil tank of excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910334649.XA CN109972687B (en) | 2019-04-24 | 2019-04-24 | Oil tank of excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109972687A CN109972687A (en) | 2019-07-05 |
| CN109972687B true CN109972687B (en) | 2023-10-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910334649.XA Active CN109972687B (en) | 2019-04-24 | 2019-04-24 | Oil tank of excavator |
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| CN (1) | CN109972687B (en) |
Citations (15)
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| EP0295325A1 (en) * | 1987-06-19 | 1988-12-21 | Chemap AG | Cleaning device for biotechnical and process-technical containers |
| US4840732A (en) * | 1986-08-21 | 1989-06-20 | Rawlins P J Thomas | Fuel tank cleaning system |
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| CN109972687A (en) | 2019-07-05 |
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