CN112762167B - A drive axle built-in easily removable oil filter device and use method - Google Patents
A drive axle built-in easily removable oil filter device and use method Download PDFInfo
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- CN112762167B CN112762167B CN202110081916.4A CN202110081916A CN112762167B CN 112762167 B CN112762167 B CN 112762167B CN 202110081916 A CN202110081916 A CN 202110081916A CN 112762167 B CN112762167 B CN 112762167B
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- oil filter
- sealing plug
- sealing
- accommodating cavity
- bulge
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/04—Features relating to lubrication or cooling or heating
- F16H57/0402—Cleaning of lubricants, e.g. filters or magnets
- F16H57/0404—Lubricant filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N39/00—Arrangements for conditioning of lubricants in the lubricating system
- F16N39/06—Arrangements for conditioning of lubricants in the lubricating system by filtration
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/86—Optimisation of rolling resistance, e.g. weight reduction
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- General Details Of Gearings (AREA)
Abstract
本发明提供一种驱动桥内置易拆换式油滤器装置及使用方法，所述装置包括桥壳本体、油滤器及密封塞；油滤器上部设置有开口，油滤器开口与密封塞通过螺纹连接；壳体本体上设置有安装凸台，安装凸台内设置有油滤器容纳腔；油滤器设置于油滤器容纳腔内，密封塞与油滤器容纳腔通过螺纹连接。本发明实现油滤器放置于桥壳本体内部，对油滤器起到很好的保护与防护作用；同时密封塞与桥壳本体的油滤器容纳腔上端口密封可靠、拆卸简便，且密封塞与油滤器螺纹连接，更换油滤器时仅需将密封塞从桥壳本体拧下并抽出，然后将油滤器从密封塞拧下即可；以上操作无需将驱动桥内部暴露，实现油滤器可常拆卸、易常拆卸目的。
The invention provides a drive axle built-in easy-to-replace oil filter device and a method of use. The device comprises an axle housing body, an oil filter and a sealing plug; the upper part of the oil filter is provided with an opening, and the oil filter opening and the sealing plug are connected by threads; An installation boss is arranged on the housing body, and an oil filter accommodating cavity is arranged in the installation boss; the oil filter is arranged in the oil filter accommodating cavity, and the sealing plug is connected with the oil filter accommodating cavity through threads. The invention realizes that the oil filter is placed inside the axle housing body, which has a good protection and protection effect on the oil filter; at the same time, the sealing plug and the upper port of the oil filter accommodating cavity of the axle housing body are reliably sealed, easy to disassemble, and the sealing plug and oil The filter is connected by thread. When replacing the oil filter, you only need to unscrew and pull out the sealing plug from the axle housing body, and then unscrew the oil filter from the sealing plug; the above operations do not need to expose the inside of the drive axle, so that the oil filter can be easily disassembled, Easy to disassemble purpose.
Description
Technical Field
The invention belongs to the technical field of axle design, and particularly relates to a drive axle built-in easy-to-replace oil filter device and a using method thereof.
Background
The transmission parts in the drive axle are worn for a long time in operation, so that a large amount of particle impurities such as iron chips and the like are generated to cause excessive wear of contact surfaces, the mechanical performance and the transmission strength of parts such as bearings and gears are affected, and finally, the transmission system is damaged, so that the lubricating oil filtering device additionally arranged in the drive axle is particularly important.
The transaxle oil filter has the branch of built-in oil filter and external oil filter: the traditional built-in oil filter is arranged in an axle housing, after a drive axle runs for a period of time, the filtering effect of the oil filter is greatly reduced due to accumulation of particle impurities, the disassembly and the replacement are time-consuming and labor-consuming, a transmission shaft, a drive axle main reducer assembly and the like need to be disassembled, and when the oil filter is replaced, the original lubricating oil is abandoned, so that the waste and the environmental pollution are easily caused, and the economical efficiency and the environmental protection are poor; external oil filter need increase oil filter base at the axle housing body and be used for fixedly, need increase the protection to external oil filter simultaneously, and this project organization is redundant, with high costs to because the space of external oil filter protrusion axle housing body is great, easily collide with, be unsuitable for cross-country or the abominable environment of operating mode, based on above two points, external oil filter is unfavorable for extensively promoting.
Therefore, in order to overcome the above-mentioned drawbacks of the prior art, it is necessary to provide a removable oil filter device with a built-in transaxle and a method for using the same.
Disclosure of Invention
Aiming at the defects that the external oil filter in the prior art is not beneficial to wide popularization and the traditional built-in oil filter is time-consuming and labor-consuming to disassemble and replace, the invention provides a drive axle built-in easy-to-disassemble and replace oil filter device and a using method thereof, and aims to solve the technical problems.
In a first aspect, the invention provides a drive axle built-in easy-to-replace oil filter device, which comprises an axle housing body, an oil filter and a sealing plug;
an opening is formed in the upper part of the oil filter, and the opening of the oil filter is connected with the sealing plug through threads;
the shell body is provided with a mounting boss, and an oil filter accommodating cavity is formed in the mounting boss;
the oil filter sets up in the oil filter holds the intracavity, and the sealing plug holds the chamber with the oil filter and passes through threaded connection.
Further, a first bulge part is arranged at the lower end of the sealing plug, and a main external thread is arranged on the periphery of the first bulge part;
a first internal thread is arranged on the inner periphery of the upper port of the oil filter accommodating cavity;
first bellying and oil filter hold the chamber upper end mouth and match to be connected with main external screw thread through first internal thread.
Furthermore, a second bulge part is arranged at the lower end of the first bulge part of the sealing plug;
the second bulge is matched with the opening of the oil filter and extends into the opening of the oil filter;
the second bulge periphery is provided with vice external screw thread, and oil filter opening inner periphery is provided with the second internal thread that matches with vice external screw thread.
Further, the upper end of the sealing plug is provided with an outer side sealing part;
the outer side sealing part of the sealing plug is connected with the outer side of the upper port of the oil filter accommodating cavity through a sealing gasket.
Further, a first sealing surface is arranged on the outer side of the upper port of the oil filter accommodating cavity;
and a second sealing surface is arranged on the lower side of the sealing part outside the sealing plug, and the sealing gasket penetrates into the sealing plug and is connected with the first sealing surface and the second sealing surface. The second sealing surface is arranged at the shoulder of the sealing plug.
Further, the outer sealing portion of the sealing plug is provided with a removal hole.
Furthermore, the dismounting hole adopts an inner hexagonal hole which is arranged at the central position of the outer sealing part of the sealing plug.
Further, the axle housing body adopts a casting type axle housing or a punching welding type axle housing.
In a second aspect, the present invention provides a method for using the transaxle built-in easy-to-replace oil filter device according to the first aspect, including the steps of:
s1, fixing an oil filter on the lower portion of a sealing plug through threads, and fixing the sealing plug inside an oil filter accommodating cavity through the threads to realize installation of the oil filter;
s2, unscrewing the sealing plug from the inside of the oil filter accommodating cavity through threads, and then unscrewing the oil filter from the lower part of the sealing plug through threads to realize the disassembly of the oil filter.
Further, the step S1 specifically includes the following steps:
s11, aligning the second bulge of the sealing plug with the opening of the oil filter;
s12, rotating a second bulge of the sealing plug downwards along the auxiliary external thread and the second internal thread, wherein the second bulge of the sealing plug extends into an opening of the oil filter, so that the oil filter is mounted on the sealing plug;
s13, extending the oil filter into an oil filter accommodating cavity, and rotating the first boss of the sealing plug downwards along the main external thread and the first internal thread to realize the installation of the sealing plug to the oil filter accommodating cavity;
the step S2 includes the following steps:
s21, upwards rotating the first bulge of the sealing plug along the main external thread and the first internal thread, and separating the sealing plug and the oil filter from the oil filter accommodating cavity to realize the disassembly of the sealing plug from the oil filter accommodating cavity;
s22, the second bulge of the sealing plug is upwards rotated along the auxiliary external thread and the second internal thread, and the second bulge of the sealing plug is separated from the opening of the oil filter, so that the sealing plug is detached from the oil filter.
The beneficial effect of the invention is that,
the easily-replaceable oil filter device arranged in the drive axle and the use method thereof realize that the oil filter is arranged in the axle housing body, and play a good role in protecting and protecting the oil filter; meanwhile, the sealing plug and the upper end opening of the oil filter accommodating cavity of the axle housing body are reliably sealed and are convenient to disassemble, the sealing plug is in threaded connection with the oil filter, the sealing plug only needs to be unscrewed and drawn out of the axle housing body when the oil filter is replaced, and then the oil filter is unscrewed from the sealing plug; the operation does not need to expose the inside of the drive axle, and the aims of normally disassembling and easily disassembling the oil filter are fulfilled; the oil filter provided by the invention has low price, is suitable for frequent replacement, greatly prolongs the maintenance of a drive axle and the replacement mileage of lubricating oil, has obvious economic and environmental protection properties and has very wide application prospect.
In addition, the invention has reliable design principle, simple structure and very wide application prospect.
Therefore, compared with the prior art, the invention has prominent substantive features and remarkable progress, and the beneficial effects of the implementation are also obvious.
Drawings
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
FIG. 1 is a schematic perspective view of a removable oil filter device built in a drive axle according to the present invention;
FIG. 2 is a schematic partial cross-sectional view of a removable oil filter device built in a drive axle according to the present invention;
FIG. 3 is a first schematic flow chart of the method of the present invention;
FIG. 4 is a second schematic flow chart of the method of the present invention;
in the figure, 1-axle housing body, 2-sealing plug, 3-sealing washer, 4-oil filter, 5-mounting boss, 6-first internal thread, 7-first sealing surface, 8-dismounting hole, 9-second sealing surface, 10-main external thread, 11-auxiliary external thread and 12-second internal thread.
Detailed Description
In order to make those skilled in the art better understand the technical solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
Example 1:
as shown in fig. 1 and fig. 2, the invention provides a drive axle built-in easy-to-replace oil filter device, which comprises an axle housing body 1, an oil filter 4 and a sealing plug 2;
an opening is formed in the upper part of the oil filter 4, and the opening of the oil filter 4 is connected with the sealing plug 2 through threads;
the shell body 1 is provided with a mounting boss 5, and an oil filter accommodating cavity is arranged in the mounting boss 5;
the oil filter 4 is arranged in the oil filter accommodating cavity, and the sealing plug 2 is connected with the oil filter accommodating cavity through threads.
In some embodiments, the lower end of the sealing plug 2 is provided with a first boss, and the periphery of the first boss is provided with a main external thread 10;
a first internal thread 6 is arranged on the inner periphery of the upper port of the oil filter accommodating cavity;
the first boss matches with the oil filter and holds the chamber upper port to be connected with main external screw thread 10 through first internal thread 6.
In some embodiments the lower end of the first boss of the sealing plug 2 is provided with a second boss;
the second bulge is matched with the opening of the oil filter 4 and extends into the opening of the oil filter 4;
the second boss periphery is provided with vice external screw thread 11, and the oil filter 4 opening inner periphery is provided with the second internal thread 2 that matches with vice external screw thread 11.
In some embodiments, the upper end of the sealing plug 2 is provided with an outer sealing part;
the outer side sealing part of the sealing plug 2 is connected with the outer side of the upper port of the oil filter containing cavity through a sealing gasket 3.
In some embodiments, the outer side of the upper port of the oil filter accommodating cavity is provided with a first sealing surface 7;
and a second sealing surface 9 is arranged on the lower side of the sealing part outside the sealing plug 2, and the sealing gasket 3 penetrates into the sealing plug and is connected with the first sealing surface 7 and the second sealing surface 9.
Example 2:
as shown in fig. 1 and fig. 2, the present invention provides a drive axle built-in easy-to-replace oil filter device, which comprises an axle housing body 1, an oil filter 4 and a sealing plug 2; the axle housing body 1 adopts a cast axle housing or a punching welding axle housing;
an opening is formed in the upper part of the oil filter 4, and the opening of the oil filter 4 is connected with the sealing plug 2 through threads;
the shell body 1 is provided with a mounting boss 5, and an oil filter accommodating cavity is formed in the mounting boss 5;
the oil filter 4 is arranged in the oil filter accommodating cavity, and the sealing plug 2 is connected with the oil filter accommodating cavity through threads;
the lower end of the sealing plug 2 is provided with a first bulge, and the periphery of the first bulge is provided with a main external thread 10;
a first internal thread 6 is arranged on the inner periphery of the upper port of the oil filter accommodating cavity;
the first boss is matched with an upper port of the oil filter accommodating cavity and is connected with the main external thread 10 through a first internal thread 6;
the lower end of the first bulge of the sealing plug 2 is provided with a second bulge;
the second bulge is matched with the opening of the oil filter 4 and extends into the opening of the oil filter 4;
an auxiliary external thread 11 is arranged on the outer periphery of the second boss, and a second internal thread 2 matched with the auxiliary external thread 11 is arranged on the inner periphery of an opening of the oil filter 4; the external thread 11 of the sealing plug pair is screwed into the second internal thread 2 of the oil filter 4, so that the oil filter 4 and the sealing plug 2 form an integrated piece; the oil filter and sealing plug integrated piece is inserted into the mounting boss 5 of the oil filter 4;
the upper end of the sealing plug 2 is provided with an outer side sealing part;
the outer side sealing part of the sealing plug 2 is connected with the outer side of the upper port of the oil filter containing cavity through a sealing gasket 3.
In some embodiments, the outer side of the upper port of the oil filter accommodating cavity is provided with a first sealing surface 7;
a second sealing surface 9 is arranged on the lower side of the sealing part outside the sealing plug 2, and the sealing washer 3 penetrates through the sealing plug and is connected with the first sealing surface 7 and the second sealing surface 9; the outer side sealing part of the sealing plug 2 is provided with a dismounting hole 8; the dismounting hole 8 adopts a hexagon socket which is arranged at the central position of the outer sealing part of the sealing plug 2.
Example 3:
as shown in fig. 3, the present invention provides a method for using a transaxle built-in easy-to-replace oil filter device according to embodiment 1 or 2, including the following steps:
s1, fixing an oil filter on the lower portion of a sealing plug through threads, and fixing the sealing plug inside an oil filter accommodating cavity through threads to realize installation of the oil filter;
s2, unscrewing the sealing plug from the inside of the oil filter accommodating cavity through threads, and then unscrewing the oil filter from the lower part of the sealing plug through threads to realize the disassembly of the oil filter.
Example 4:
as shown in fig. 4, the present invention provides a method for using the transaxle built-in easy-to-replace oil filter device according to embodiment 1 or 2, including the following steps:
s1, fixing an oil filter on the lower portion of a sealing plug through threads, and fixing the sealing plug inside an oil filter accommodating cavity through threads to realize installation of the oil filter; the method comprises the following specific steps:
s11, aligning the second bulge of the sealing plug with the opening of the oil filter;
s12, rotating a second bulge of the sealing plug downwards along the auxiliary external thread and the second internal thread, wherein the second bulge of the sealing plug extends into an opening of the oil filter, so that the oil filter is mounted on the sealing plug;
s13, extending the oil filter into an oil filter accommodating cavity, and rotating the first boss of the sealing plug downwards along the main external thread and the first internal thread to realize the installation of the sealing plug to the oil filter accommodating cavity;
s2, screwing the sealing plug off the inside of the oil filter accommodating cavity through threads, and then screwing the oil filter off the lower part of the sealing plug through the threads to realize the disassembly of the oil filter; the method comprises the following specific steps:
s21, rotating the first boss of the sealing plug upwards along the main external thread and the first internal thread, and separating the sealing plug and the oil filter from the oil filter accommodating cavity to detach the sealing plug from the oil filter accommodating cavity;
s22, the second bulge of the sealing plug is upwards rotated along the auxiliary external thread and the second internal thread, and the second bulge of the sealing plug is separated from the opening of the oil filter, so that the sealing plug is detached from the oil filter.
Although the present invention has been described in detail by referring to the drawings in connection with the preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made on the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and these modifications or substitutions are within the scope of the present invention/any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (8)
1. A drive axle built-in easy-to-replace oil filter device is characterized by comprising an axle housing body (1), an oil filter (4) and a sealing plug (2);
an opening is formed in the upper part of the oil filter (4), and the opening of the oil filter (4) is connected with the sealing plug (2) through threads;
an installation boss (5) is arranged on the axle housing body (1), and an oil filter accommodating cavity is arranged in the installation boss (5);
the oil filter (4) is arranged in the oil filter accommodating cavity, and the sealing plug (2) is connected with the oil filter accommodating cavity through threads;
wherein, the lower end of the sealing plug (2) is provided with a first bulge, and the periphery of the first bulge is provided with a main external thread (10);
a first internal thread (6) is arranged on the inner periphery of the upper port of the oil filter accommodating cavity;
the first bulge is matched with the upper port of the oil filter accommodating cavity and is connected with the main external thread (10) through a first internal thread (6);
the lower end of the first bulge of the sealing plug (2) is provided with a second bulge;
the second bulge is matched with the opening of the oil filter (4) and extends into the opening of the oil filter (4);
the outer periphery of the second boss is provided with an auxiliary external thread (11), and the inner periphery of the opening of the oil filter (4) is provided with a second internal thread (12) matched with the auxiliary external thread (11).
2. The transaxle built-in easy-to-detach oil filter device according to claim 1, wherein an outer sealing portion is provided at an upper end of the sealing plug (2);
the outer side sealing part of the sealing plug (2) is connected with the outer side of the upper port of the oil filter accommodating cavity through a sealing gasket (3).
3. The transaxle built-in easy-to-detach oil filter device according to claim 2, wherein a first sealing surface (7) is provided outside the upper port of the oil filter accommodating chamber;
a second sealing surface (9) is arranged on the lower side of the sealing part on the outer side of the sealing plug (2), and the sealing gasket (3) penetrates through the sealing plug and is connected with the first sealing surface (7) and the second sealing surface (9).
4. The transaxle built-in easy-to-disassemble oil filter assembly of claim 2 wherein the outer sealing portion of the sealing plug (2) is provided with a removal hole (8).
5. The transaxle built-in easy-to-remove oil strainer device according to claim 4, wherein the removal hole (8) is a hexagonal socket which is provided at a central position of the outer side sealing portion of the sealing plug (2).
6. The easy-to-replace oil filter device built in a drive axle according to claim 1, wherein the axle housing body (1) is a cast axle housing or a stamped and welded axle housing.
7. The use method of the internally-arranged easy-to-replace oil filter device of the drive axle according to any one of the claims 1 to 6 is characterized by comprising the following steps:
s1, fixing an oil filter on the lower portion of a sealing plug through threads, and fixing the sealing plug inside an oil filter accommodating cavity through threads to realize installation of the oil filter;
s2, unscrewing the sealing plug from the inside of the oil filter accommodating cavity through threads, and then unscrewing the oil filter from the lower part of the sealing plug through threads to realize the disassembly of the oil filter.
8. The method for using the internally-arranged easy-to-replace oil filter device of the drive axle according to claim 7, wherein the step S1 comprises the following steps:
s11, aligning the second bulge of the sealing plug with the opening of the oil filter;
s12, rotating a second bulge of the sealing plug downwards along the auxiliary external thread and the second internal thread, wherein the second bulge of the sealing plug extends into an opening of the oil filter, so that the oil filter is mounted on the sealing plug;
s13, extending the oil filter into an oil filter accommodating cavity, and rotating the first boss of the sealing plug downwards along the main external thread and the first internal thread to realize the installation of the sealing plug to the oil filter accommodating cavity;
the step S2 includes the following steps:
s21, rotating the first boss of the sealing plug upwards along the main external thread and the first internal thread, and separating the sealing plug and the oil filter from the oil filter accommodating cavity to detach the sealing plug from the oil filter accommodating cavity;
s22, the second bulge of the sealing plug is upwards rotated along the auxiliary external thread and the second internal thread, and the second bulge of the sealing plug is separated from the opening of the oil filter, so that the sealing plug is detached from the oil filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110081916.4A CN112762167B (en) | 2021-01-21 | 2021-01-21 | A drive axle built-in easily removable oil filter device and use method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110081916.4A CN112762167B (en) | 2021-01-21 | 2021-01-21 | A drive axle built-in easily removable oil filter device and use method |
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| Publication Number | Publication Date |
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| CN112762167A CN112762167A (en) | 2021-05-07 |
| CN112762167B true CN112762167B (en) | 2022-09-09 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116592128A (en) * | 2023-06-25 | 2023-08-15 | 岚图汽车科技有限公司 | Reducer, electric drive system and vehicle |
| CN118998298B (en) * | 2024-10-15 | 2025-09-19 | 一汽解放汽车有限公司 | Vehicle, drive axle and axle housing assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101988450A (en) * | 2010-11-02 | 2011-03-23 | 三一重机有限公司 | a fuel filter |
| WO2013126700A1 (en) * | 2012-02-23 | 2013-08-29 | Cummins Filtration Ip, Inc. | Filter with shielded internal gasket |
| DE102014000715A1 (en) * | 2014-01-23 | 2015-07-23 | Mann + Hummel Gmbh | filter element |
| CN204472451U (en) * | 2015-01-30 | 2015-07-15 | 山东蓬翔汽车有限公司 | A kind of axle case assy with outside plug type oil filter |
| CN205260187U (en) * | 2015-12-31 | 2016-05-25 | 合肥威尔燃油系统股份有限公司 | Filter |
| CN207777590U (en) * | 2017-12-19 | 2018-08-28 | 广西柳工机械股份有限公司 | Drive axle porous plug mounting structure |
| CN211676571U (en) * | 2019-12-05 | 2020-10-16 | 大连心诚金属制品有限公司 | Oil filter convenient to installation |
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