CN209925587U - Gear box and centrifugal compressor - Google Patents
Gear box and centrifugal compressor Download PDFInfo
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- CN209925587U CN209925587U CN201920820705.6U CN201920820705U CN209925587U CN 209925587 U CN209925587 U CN 209925587U CN 201920820705 U CN201920820705 U CN 201920820705U CN 209925587 U CN209925587 U CN 209925587U
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Abstract
The utility model provides a gear box and a centrifugal compressor, which relate to the technical field of compressors and comprise a gear box seat, a gear box cover, a lubricating system, a gear and a bearing; the gear box seat is hermetically connected with the gear box cover, and the gear and the bearing are both positioned in an inner space formed by the gear box seat and the gear box cover; the gear box cover is provided with a first gear oil supply hole and a bearing oil supply hole, the gear box base is provided with an oil supply port and a second gear oil supply hole, the oil supply port, the first gear oil supply hole, the bearing oil supply hole and the second gear oil supply hole are communicated with a lubricating system, and oil paths in the lubricating system are arranged on the gear box base and the gear box cover. The gearbox relieves the technical problem of unreasonable design of a lubricating oil pipeline in the prior art.
Description
Technical Field
The utility model belongs to the technical field of the compressor technique and specifically relates to a gear box and centrifugal compressor are related to.
Background
The centrifugal compressor gear box is used as a carrier of rotating parts such as bearings, gears and the like, and not only plays a bearing role in the working process of the compressor, but also needs to provide enough lubricating oil for the bearings and the gears to play a role in lubrication and cooling. Simple and reliable lubricating oil supply can not only prolong the service life of parts, but also reduce mechanical abrasion and production cost and improve the working efficiency of the whole machine.
The design of the lubricating oil pipeline of the gear box in the prior art mainly comprises two schemes: 1. a lubricating oil pipeline is arranged outside the gear box; pressure oil provided by the oil pump reaches the gear box and then is assembled together through structural components such as a lubricating oil pipe, an elbow, a tee joint and a movable joint to form a lubricating oil pipeline of the gear box. This arrangement of the lubricating oil line includes a large number of parts, increasing the assembly effort. Because the pipeline is integrally arranged outside the gear box, the sealing requirements on all parts of the pipeline are strict, and once leakage occurs, the pipeline must be stopped for maintenance immediately. 2. The gear box cover is provided with a lubricating oil pipeline: this arrangement of the lubricating oil line is achieved by adding a blank allowance to the gear case cover and then machining the lubricating oil line. The problem that pipeline sealing requirements are tight and assembly are complex is well solved through the arrangement scheme, but the oil supply hole of the gearbox is formed in the gearbox cover, so that the fact that an interface of a lubricating oil pipeline on the gearbox cover is firstly removed when the gearbox cover is disassembled and repaired every time is solved, overhauling workload is invisibly increased, meanwhile, sealing threads or gaskets and the like of a joint part are abraded due to repeated disassembling and assembling of the lubricating oil pipeline, and the problem that sealing is not tight is caused.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information constitutes prior art already known to a person skilled in the art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a gear box and centrifugal compressor to alleviate the unreasonable technical problem of lubricating oil pipeline design that exists among the prior art.
In order to achieve the above object, the utility model provides a following technical scheme:
the utility model discloses the gear box that the first aspect provided, include: the gearbox comprises a gearbox base, a gearbox cover, a lubricating system, a gear and a bearing;
the gearbox base is connected with the gearbox cover in a sealing mode, and the gear and the bearing are both positioned in an inner space formed by the gearbox base and the gearbox cover;
the gear box is covered and is equipped with first gear oil feed hole and bearing oil feed hole, be equipped with on the gear box seat and supply oil mouth and second gear oil feed hole, supply oil mouth first gear oil feed hole bearing oil feed hole with second gear oil feed hole all with lubricating system intercommunication just oil circuit in the lubricating system all locates the gear box seat with the gear box covers.
Further, the lubricating system includes a first oil path, a first gear oil supply path, a lubricating oil circulation loop, a second oil path, and a second gear oil supply path, wherein:
one end of the first oil path is communicated with the oil supply port, and the other end of the first oil path is respectively communicated with the first gear oil supply path and the lubricating oil circulation loop;
and one end of the second oil path is communicated with the lubricating oil circulation loop, and the other end of the second oil path is communicated with the second gear oil supply oil path.
Further, the bearing oil supply hole is communicated with the lubricating oil circulation loop.
Furthermore, one section of the first oil path is arranged on the gear box base, and the other section of the first oil path is arranged on the gear box cover.
Further, the first gear oil supply oil path and the lubricating oil circulation loop are both arranged on the gear box cover.
Furthermore, one section of the second oil path is arranged on the gear box base, and the other section of the second oil path is arranged on the gear box cover.
Furthermore, the second gear oil supply path is arranged on the gear box base.
Furthermore, all oil passages in the lubricating system are formed by machining.
Further, the gearbox base and the gearbox cover are connected in a sealing mode through a sealing piece.
A second aspect of the present invention provides a centrifugal compressor comprising the gear box of any one of the first aspects.
The utility model provides a gear box and centrifugal compressor have following beneficial effect:
the utility model discloses the gear box that the first aspect provided, include: the gearbox comprises a gearbox base, a gearbox cover, a lubricating system, a gear and a bearing; the gear box seat is hermetically connected with the gear box cover, and the gear and the bearing are both positioned in an inner space formed by the gear box seat and the gear box cover; the gear box cover is provided with a first gear oil supply hole and a bearing oil supply hole, the gear box base is provided with an oil supply port and a second gear oil supply hole, the oil supply port, the first gear oil supply hole, the bearing oil supply hole and the second gear oil supply hole are communicated with a lubricating system, and oil paths in the lubricating system are arranged on the gear box base and the gear box cover.
The utility model discloses the gear box that the first aspect provided includes gear box seat, gear box lid, lubricating system, gear wheel, two pinions, bearing etc.. The oil supply port of the gear box is designed on the gear box seat, so that the lubricating oil pipeline structure is simplified, the use of pipeline structural parts is reduced, the appearance of the unit is simpler due to the design of the single interface, and lubricating oil enters the gear box and then is hermetically connected with the gear box seat through the oil passages arranged on the gear box seat and the gear box cover. The first gear oil supply hole and the bearing oil supply hole are respectively communicated with an oil way on the gear box cover, and the second gear oil supply hole is communicated with an oil way on the gear box cover.
The utility model discloses the gear box that the first aspect provided processes the lubricating oil pipeline on these two foundry goods of gear box seat and gear box lid and need not consider sealed problem, has reduced the oil leak point, makes the oil pressure of lubricating oil system more stable simultaneously, has guaranteed lubricating system's reliability. And the gear box adopts a lubricating oil system with base oil supply and upper cover circulation, so that a lubricating oil pipeline is not required to be detached when the upper cover is detached, and the overhaul efficiency of the unit can be improved by about 30 percent.
The utility model discloses the centrifugal compressor that the second aspect provided with the utility model discloses the gear box that the first aspect provided, thereby have the utility model discloses all beneficial effects that the gear box that the first aspect provided had.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a gearbox according to an embodiment of the first aspect of the present invention;
fig. 2 is a schematic structural diagram of an oil-sliding path of an internal gear of a gear box according to an embodiment of the first aspect of the present invention;
fig. 3 is a schematic structural diagram of a bearing lubricating oil path in a gear box according to an embodiment of the first aspect of the present invention;
fig. 4 is a schematic structural diagram of a centrifugal compressor according to an embodiment of the second aspect of the present invention.
Icon: 100-gearbox housing; 200-gearbox cover; 300-a lubrication system; 110-an oil supply port; 120-a second gear oil feed hole; 210-a first gear oil supply hole; 220-bearing oil supply holes; 310-a first oil path; 320-a first gear oil supply path; 330-oil circulation loop; 340-a second oil path; 350-second gear oil supply path.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Fig. 1 is a schematic structural diagram of a gearbox according to an embodiment of the first aspect of the present invention; fig. 2 is a schematic structural diagram of an oil-sliding path of an internal gear of a gear box according to an embodiment of the first aspect of the present invention; fig. 3 is a schematic structural diagram of a bearing lubricating oil path in a gear box according to an embodiment of the first aspect of the present invention; fig. 4 is a schematic structural diagram of a centrifugal compressor according to an embodiment of the second aspect of the present invention.
The following detailed description of the embodiments of the present invention will be made with reference to the accompanying drawings. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, a gear box and a centrifugal compressor according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
An embodiment of the first aspect of the present invention provides a gear box, including: a gearbox housing 100, a gearbox cover 200, a lubrication system 300, gears and bearings;
the gearbox base 100 is hermetically connected with the gearbox cover 200, and both gears and bearings are positioned in an inner space formed by the gearbox base 100 and the gearbox cover 200;
the gear case cover 200 is provided with a first gear oil supply hole 210 and a bearing oil supply hole 220, the gear case base 100 is provided with an oil supply port 110 and a second gear oil supply hole 120, the oil supply port 110, the first gear oil supply hole 210, the bearing oil supply hole 220 and the second gear oil supply hole 120 are all communicated with the lubricating system 300, and oil paths in the lubricating system 300 are all arranged on the gear case base 100 and the gear case cover 200.
It should be noted that embodiments of the first aspect of the present invention provide a gearbox including a gearbox housing 100, a gearbox cover 200, a lubrication system 300, a gearwheel, two pinions, a bearing, and the like. The gearbox housing 100 and the gearbox cover 200 are connected in a sealing way through a sealing ring. The oil supply port 110 of the gear box is designed on the gear box base 100, so that the structure of a lubricating oil pipeline is simplified, the use of pipeline structural parts is reduced, the appearance of the unit is simpler due to the design of the single interface, and lubricating oil enters the gear box and then is hermetically connected between the gear box base 100 and the gear box cover 200 through oil passages arranged on the gear box base 100 and the gear box cover 200. The first gear oil supply hole 210 and the bearing oil supply hole 220 are respectively communicated with the oil passage of the gear case cover 200, and the second gear oil supply hole 120 is communicated with the oil passage of the gear case cover 200.
The utility model discloses the gear box that the embodiment of the first aspect provided processes the lubricating oil pipeline on two these castings of gear box seat 100 and gear box lid 200 and need not consider sealed problem, has reduced the oil leak point, makes the oil pressure of lubricating oil system more stable simultaneously, has guaranteed lubricating system 300's reliability. And the gear box adopts a lubricating oil system with base oil supply and upper cover circulation, so that a lubricating oil pipeline is not required to be detached when the upper cover is detached, and the overhaul efficiency of the unit can be improved by about 30 percent.
In an alternative embodiment, the lubrication system 300 further includes a first oil path 310, a first gear oil supply path 320, a lubricating oil circulation loop 330, a second oil path 340, and a second gear oil supply path 350, wherein:
one end of the first oil passage 310 is communicated with the oil supply port 110, and the other end is respectively communicated with the first gear oil supply passage 320 and the lubricating oil circulation circuit 330;
the second oil passage 340 has one end communicating with the oil circulation circuit 330 and the other end communicating with the second gear oil supply passage 350.
In at least one embodiment, the oil supply port 110 of the gearbox is formed in the gearbox housing 100, and the lubricating oil enters the gearbox from the oil supply port 110 and then reaches the lubricating oil circulation loop 330 of the gearbox cover 200 through the first oil path 310. The first gear oil supply hole 210 communicates with the oil circulation circuit 330 of the gear case cover 200, and the second gear oil supply hole 120 communicates with the oil circulation circuit 330 of the gear case cover 200 through a second oil passage 340. The oil in the oil circulation circuit 330 reaches the second gear oil supply hole 120 through the second oil passage 340.
In an alternative embodiment, the bearing oil supply hole 220 is communicated with the oil circulation circuit 330.
In at least one embodiment, oil within oil circulation loop 330 supplies oil to each bearing through bearing oil supply holes 220.
In an alternative embodiment, one section of the first oil path 310 is disposed on the gear box base 100, and the other section is disposed on the gear box cover 200.
In an alternative embodiment, one section of the second oil path 340 is disposed on the gear box base 100, and the other section is disposed on the gear box cover 200.
It should be noted that the first oil path 310 and the second oil path 340 both communicate with the gearbox housing 100 and the gearbox cover 200, the gearbox housing 100 is hermetically connected with the gearbox cover 200, and the lubricating oil paths are processed on two castings, namely the gearbox housing 100 and the gearbox cover 200, without considering redundant sealing problems, so that oil leakage points are reduced, the oil pressure of the lubricating oil system is more stable, and the reliability of the lubricating system 300 is ensured.
In an alternative embodiment of the present invention, the first gear oil supply path 320 and the oil circulation path 330 are both disposed on the gear case cover 200.
In at least one embodiment, the lubricating oil enters the gearbox from the oil supply port 110, then reaches the lubricating oil circulation loop 330 of the gearbox cover 200 through the first oil path 310, and then enters the first gear oil supply hole 210 through the first gear oil supply path 320, so as to lubricate the first gear.
It should be noted that, the lubricating oil lubricating system 300 with the base oil supply-upper cover circulation in the gearbox enables the lubricating oil pipeline not to be detached when the upper cover is repaired and detached, so that the overhaul efficiency of the unit can be improved by about 30%.
In an alternative embodiment, the second gear oil supply path 350 is disposed on the gear box base 100.
In at least one embodiment, the lubricating oil enters the gearbox from the oil supply port 110, then reaches the lubricating oil circulation loop 330 of the gearbox cover 200 through the first oil path 310, then reaches the second gear oil supply path 350 of the gearbox base 100 through the second oil path 340, and finally enters the second gear oil supply hole 120 through the second gear oil supply path 350, so as to lubricate the second gear.
It should be noted that since the rotation directions of the two pinions do not coincide and the position of the oil injection needs to be on the meshing side, the two gear oil supply holes are formed such that the first gear is located on the gear case cover 200 and the second gear is located on the gear case base 100.
The embodiment of the first aspect of the present invention provides a working principle of the lubrication system 300 in the gear box as follows:
the lubricating oil enters the gearbox through the oil supply port 110 of the gearbox housing 100, reaches the lubricating oil circulation loop 330 of the gearbox cover 200 along the first oil path 310, enters the gear and the bearing through the first gear oil supply hole 210 and the bearing oil supply hole 220 communicated with the lubricating oil circulation loop 330, lubricates the gear and the bearing, and enters the second gear oil supply hole 120 through the second oil path 340 to lubricate the gear.
In an alternative of this embodiment, the oil passages in the lubrication system 300 are all formed by machining.
It should be noted that all paths of the lubricating oil after entering the gear box are machined, the circulating path is smooth, and no reverse step or annular interface exists, so that the lubricating oil circulating resistance can be reduced, and the power of the lubricating oil pump is reduced by 5-10%.
In an alternative embodiment of the present invention, the gearbox housing 100 and the gearbox cover 200 are connected in a sealing manner by a sealing element.
It should be noted that one section of the first oil path 310 is disposed on the gear box base 100, and the other section is disposed on the gear box cover 200; one section of the second oil path 340 is disposed on the gear box base 100, and the other section is disposed on the gear box cover 200. The gearbox housing 100 and the gearbox cover 200 are sealingly connected by a seal, such as an O-ring.
In the gear box provided by the embodiment of the first aspect of the utility model, the lubricating oil pipelines are all machined on the casting piece at one time; an oil supply port 110 is arranged on the base of the gear box, a lubricating oil circulating oil way is arranged on the gear box cover 200, and the lubricating oil way does not need to be disassembled when the gear box cover 200 is disassembled.
Embodiments of the second aspect of the present invention provide a centrifugal compressor, including a gear box in any one of the above embodiments.
The utility model discloses the centrifugal compressor that the embodiment of second aspect provided with the utility model discloses the gear box that the embodiment of first aspect provided, thereby have the utility model discloses all beneficial effects that the gear box that the embodiment of first aspect provided had.
The gear case and the centrifugal compressor according to the present invention have been described above, but the present invention is not limited to the above-described specific embodiments, and various modifications and changes can be made without departing from the scope of the claims. The present invention includes various modifications and alterations within the scope of the claims.
For example, when the number of the pinions of the multi-shaft compressor is more than 2, different gear oil supply holes can be arranged according to different positions, and the design principle is the same as that described above. Specifically, for example when the gear is three, the utility model discloses be equipped with the first gear oil feed hole, second gear oil feed hole and the third gear oil feed hole that correspond with three gear, the theory of design is with the description of two gears.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (10)
1. A gearbox, comprising: a gearbox housing (100), a gearbox cover (200), a lubrication system (300), gears and bearings;
the gearbox base (100) is connected with the gearbox cover (200) in a sealing mode, and the gear and the bearing are located in an inner space formed by the gearbox base (100) and the gearbox cover (200);
be equipped with first gear oil feed hole (210) and bearing oil feed hole (220) on gear case lid (200), be equipped with on gear case seat (100) and supply oil mouth (110) and second gear oil feed hole (120), supply oil mouth (110) first gear oil feed hole (210) bearing oil feed hole (220) with second gear oil feed hole (120) all with lubricating system (300) intercommunication just oil circuit in lubricating system (300) all locates gear case seat (100) with on gear case lid (200).
2. The gearbox according to claim 1, wherein the lubrication system (300) comprises a first oil passage (310), a first gear oil supply passage (320), a lubricating oil circulation circuit (330), a second oil passage (340), and a second gear oil supply passage (350), wherein:
one end of the first oil path (310) is communicated with the oil supply port (110), and the other end of the first oil path is respectively communicated with the first gear oil supply path (320) and the lubricating oil circulation loop (330);
one end of the second oil path (340) is communicated with the lubricating oil circulation loop (330), and the other end of the second oil path is communicated with the second gear oil supply path (350).
3. The gearbox of claim 2, wherein the bearing oil supply bore (220) communicates with the oil circulation loop (330).
4. The gearbox according to claim 2, characterized in that the first oil passage (310) is provided on the gearbox housing (100) in one section and on the gearbox cover (200) in another section.
5. The gearbox according to claim 2, characterized in that the first gear oil supply circuit (320) and the oil circulation circuit (330) are both provided on the gearbox cover (200).
6. The gearbox according to claim 2, characterized in that the second oil path (340) is provided on the gearbox housing (100) in one section and on the gearbox cover (200) in another section.
7. A gearbox according to claim 2, in which the second gear oil feed circuit (350) is provided on the gearbox housing (100).
8. A gearbox according to any one of claims 1 to 7, characterised in that the oil passages in the lubrication system (300) are all formed by machining.
9. Gearbox according to any of the preceding claims 1 to 7, characterised in that the gearbox housing (100) and the gearbox cover (200) are sealingly connected by means of a seal.
10. A centrifugal compressor comprising a gearbox according to any one of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920820705.6U CN209925587U (en) | 2019-05-31 | 2019-05-31 | Gear box and centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920820705.6U CN209925587U (en) | 2019-05-31 | 2019-05-31 | Gear box and centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209925587U true CN209925587U (en) | 2020-01-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920820705.6U Active CN209925587U (en) | 2019-05-31 | 2019-05-31 | Gear box and centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209925587U (en) |
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2019
- 2019-05-31 CN CN201920820705.6U patent/CN209925587U/en active Active
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