CN214331433U - Structure of external lubricating oil cooler of gear box - Google Patents
Structure of external lubricating oil cooler of gear box Download PDFInfo
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- CN214331433U CN214331433U CN202023233678.4U CN202023233678U CN214331433U CN 214331433 U CN214331433 U CN 214331433U CN 202023233678 U CN202023233678 U CN 202023233678U CN 214331433 U CN214331433 U CN 214331433U
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Abstract
The utility model discloses an external lubricating oil cooler's of gear box structure, including establishing the oil duct distributor on the oil pump limit lid of gear box casing, be equipped with high temperature lubricating oil pump pressure output oil way and cooling lubricating oil pump pressure backward flow oil duct on the oil duct distributor, the former lubricating system oil duct intercommunication on pump pressure backward flow oil duct and the gear box casing. The oil passage distributing body is provided with a dual-mode switching hole, the outlet of the dual-mode switching hole is positioned on the outer surface of the oil passage distributing body, the middle part of the dual-mode switching hole penetrates through the pumping pressure output oil passage, the bottom end of the dual-mode switching hole is communicated with the pumping pressure return oil passage, and a valve structure capable of enabling the dual-mode switching hole to be connected and disconnected is arranged in the dual-mode switching hole between the pumping pressure output oil passage and the pumping pressure return oil passage. The advantages are that: 1. the original mature and efficient lubricating system can be completely utilized, and the design and manufacturing cost is obviously reduced; 2. the new structure of the external lubricating oil cooler has the universality of using and not using the external lubricating oil cooler; 3. simple structure and convenient installation.
Description
Technical Field
The utility model relates to a structure of external lubricating oil cooler of gear box belongs to the lubricated technical field of automobile reducer.
Background
In order to improve the load capacity and the power performance of a power transmission system, the bearing capacity and the rotating speed of a gear box of the power transmission system need to be greatly improved. However, after the bearing capacity and the rotating speed of the gearbox are improved, the self-generated heat dissipation capacity of the gearbox cannot meet the heat dissipation requirement of the gearbox. The most effective solution is to add an external oil cooler to the gearbox. The common method is that pressure oil pumped by a lubricating oil pump is cooled by a cooler and then directly flows back to an oil pool of the gear box through a special return port, or a set of lubricating system is redesigned at a lubricating oil return port, but the common point is that the original mature and efficient lubricating system is abandoned. As a result, either the gearbox lubrication effect is deteriorated or the gearbox lubrication structure becomes more complicated.
The utility model aims at overcoming the shortcoming of above-mentioned technique, designing a manufacturing is easy, simple to operate, can utilize original ripe high-efficient lubricating system's the structure of the external lubricating oil cooler of gear box completely.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the structure of the prior external lubricating oil cooler can not utilize the prior mature high-efficiency lubricating system.
To the above problem, the utility model provides a technical scheme is:
the structure comprises an oil passage distribution body arranged on an oil pump side cover of a gear box shell, wherein a high-temperature lubricating oil pump pressure output oil passage and a cooling lubricating oil pump pressure return oil passage are arranged on the oil passage distribution body, and the pump pressure return oil passage is communicated with an original lubricating system oil passage on the gear box shell.
Furthermore, a dual-mode switching hole is formed in the oil passage distribution body, an outlet of the dual-mode switching hole is positioned on the outer surface of the oil passage distribution body, the middle of the dual-mode switching hole penetrates through the pumping pressure output oil passage, the bottom end of the dual-mode switching hole is communicated with the pumping pressure return oil passage, and a valve structure capable of enabling the dual-mode switching hole to be connected and disconnected is arranged in the dual-mode switching hole between the pumping pressure output oil passage and the pumping pressure return oil passage; and a first oil plug is arranged at an outlet of the double-mode switching hole on the outer surface of the oil duct distributor body.
Furthermore, the dual-mode switching hole is divided into a plug section, an oil passing section, a valve body section and a communicating section, the plug section is a section except the pumping pressure output oil passage, the oil passing section is a section passing through the pumping pressure output oil passage, the valve body section is a section between the pumping pressure output oil passage and the pumping pressure return oil passage and close to the pumping pressure output oil passage, and the communicating section is a section between the pumping pressure output oil passage and the pumping pressure return oil passage and close to the pumping pressure return oil passage; the diameter of the plug section is larger than or equal to that of the oil passing section and larger than or equal to that of the valve body section; the diameter of the valve body section > the diameter of the communicating section, so that an annular valve pressing table is formed at the position where the valve body section is communicated with the communicating section.
Furthermore, a pressure valve and a pressure spring which can be arranged in the valve body section through the plug section and the oil passing section are arranged; when using external lubricating oil cooler's application mode, the export in bimodulus switching hole is switched in oil plug one, presses the valve to press on annular valve pressure platform, and the one end of pressure spring is pressed on pressing the valve, and the other end supports on oil plug one through oil section, embolism section.
Further, a spare oil plug II and a spare oil plug III which can respectively plug the pumping pressure output oil passage and the pumping pressure return oil passage are arranged at the outlet of the pumping pressure output oil passage and the inlet of the pumping pressure return oil passage.
Furthermore, the inner wall of the outlet of the dual-mode switching hole, the inner wall of the outlet of the pumping pressure output oil passage and the inner wall of the inlet of the pumping pressure return oil passage are provided with internal threads, and the oil plug I, the oil plug II and the oil plug III respectively comprise threaded bolts and sealing gaskets.
The utility model has the advantages that: 1. the original mature and efficient lubricating system can be completely utilized, and compared with the existing lubricating system which needs to be redesigned and manufactured by an external lubricating oil cooler, the design and manufacturing cost is obviously reduced; 2. the novel structure of the external lubricating oil cooler has the universality of using and not using the external lubricating oil cooler, and the two application modes are easy to switch; 3. simple structure and convenient installation.
Drawings
FIG. 1 is a schematic perspective view of an external lubricating oil cooler for the gear case;
fig. 2 is a schematic perspective view of a positional relationship between the pump pressure output oil passage, the pump pressure return oil passage, and the dual mode switching hole provided in the oil passage distribution body on the oil pump side cover;
FIG. 3 is a schematic cross-sectional view of the structural relationship of the pump pressure output oil passage, the pump pressure return oil passage, and the dual mode switching orifice;
FIG. 4 is a schematic cross-sectional view of the structural relationship of the pumping pressure output oil passage, the pumping pressure return oil passage and the dual-mode switching hole and the installation relationship of a pressure valve, a pressure spring and an oil plug when an external lubricating oil cooler is used in an application mode;
fig. 5 is a schematic cross-sectional view of the structural relationship and the installation relationship of the pumping pressure output oil passage, the pumping pressure return oil passage, the dual-mode switching hole, the first oil plug, the second oil plug and the third oil plug when the external lubricating oil cooler is not used in an application mode.
In the figure: 1. a gear case; 2. an oil pump side cover; 3. distributing the oil duct; 4. a pump pressure output oil passage; 5. pumping a return oil duct; 6. a dual-mode switching aperture; 61. a plug section; 62. an oil passing section; 63. a valve body section; 64. a communicating section; 65. an annular valve press table; 7. a pressure valve; 8. a pressure spring; 9. a first oil plug; 10. a second oil plug; 11. a third oil plug; 12. an original lubricating system oil duct; 13. a cooler; 14. a high temperature oil input pipe; 15. and a cooling oil output pipe.
Detailed Description
As shown in figures 1 and 3, the gear box 1 can be a gearbox for automobiles and ships and also can be a transfer case connected with the gearbox, lubricating oil with a certain depth is arranged at the lower part in the gear box 1, the lower part of a part of gears is immersed in the lower part of the gear box, and a large amount of splashing lubricating oil can be formed in the gear box when the gears rotate at a high speed. The splashed lubricating oil directly lubricates parts of parts in the box, which have relative friction, and oil is supplied to bearings which cannot directly obtain the splashed lubricating oil by arranging an oil groove on the shell, but sufficient lubricating oil is still difficult to obtain from open oil grooves at some important positions needing lubrication, a tubular closed oil channel system is required to be arranged on the shell, and pumping oil supply is carried out through an oil pump, and the oil channel system for supplying oil through pumping pressure exists before an external lubricating oil cooler is adopted and is applied and improved for many years, so the oil channel system is called as an oil channel 12 of an original lubricating system or the original mature efficient lubricating system in the text.
The oil pump is arranged outside the gear box 1 shell, an oil pump side cover 2 for installing the oil pump is specially arranged for the oil pump, and the position of the oil pump side cover 2 outside the gear box 1 shell corresponds to the position of the oil pump side cover 2 inside the gear box 1 shell, which can obtain enough splashed lubricating oil (conveyed through an oil collecting oil duct).
As shown in fig. 1 and 2, a structure of an external lubricating oil cooler of a gear box comprises an oil passage distribution body 3 arranged on an oil pump side cover 2 outside a shell of the gear box 1, wherein the oil passage distribution body 3 is provided with a high-temperature lubricating oil pump pressure output oil passage 4 and a cooling lubricating oil pump pressure return oil passage 5, and the pump pressure return oil passage 5 is communicated with an original lubricating system oil passage 12 on the shell of the gear box 1. Thus, the cooled lubricating oil does not directly flow back to the bottom in the gear box 1, but can be used for low-temperature lubrication of important parts by fully utilizing the original mature and efficient lubricating system. Compared with the existing external lubricating oil cooler which needs to be redesigned to manufacture a new lubricating system, the design and manufacture cost is obviously reduced, and the low-temperature lubricating oil is used for directly lubricating important positions, so that a better protection effect can be obtained.
The following is a further improvement.
As shown in fig. 1 to 4, a dual-mode switching hole 6 is formed in the oil passage distribution body 3, an outlet of the dual-mode switching hole 6 is located on the outer surface of the oil passage distribution body 3, the middle of the dual-mode switching hole passes through the pumping pressure output oil passage 4, the bottom end of the dual-mode switching hole is communicated with the pumping pressure return oil passage 5, and a valve structure capable of enabling the dual-mode switching hole 6 to be opened and closed is arranged in the dual-mode switching hole 6 between the pumping pressure output oil passage 4 and the pumping pressure return oil passage 5; and an oil plug I9 is arranged at an outlet of the double-mode switching hole 6 on the outer surface of the oil passage distributing body 3. The arrangement can be adapted to two application modes of using and not using the external lubricating oil cooler 13, and is mainly arranged for the gearbox 1 for automobiles and ships with low rotating speed and low application environment temperature, which possibly does not need to use the external lubricating oil cooler 13, and the specific application mode is as follows:
the dual-mode switching hole 6 is divided into a plug section 61, an oil passing section 62, a valve body section 63 and a communicating section 64, the plug section 61 is a section outside the pumping pressure output oil passage 4, the oil passing section 62 is a section passing through the pumping pressure output oil passage 4, the valve body section 63 is a section between the pumping pressure output oil passage 4 and the pumping pressure return oil passage 5 and close to the pumping pressure output oil passage 4, and the communicating section 64 is a section between the pumping pressure output oil passage 4 and the pumping pressure return oil passage 5 and close to the pumping pressure return oil passage 5; the diameter of the plug section 61 is larger than or equal to that of the oil passing section 62 and larger than or equal to that of the valve body section 63; the diameter of the valve body section 63 > the diameter of the communicating section 64, so that an annular valve pressing table 65 is formed where the valve body section 63 communicates with the communicating section 64.
The pressure valve 7 and the pressure spring 8 which can be arranged in the valve body section 63 through the plug section 61 and the oil passing section 62 are arranged; when using external lubricating oil cooler's application mode, the export in bimodulus switching hole 6 is blocked to oil plug 9, presses valve 7 to press on annular valve pressure platform 65, and the one end pressure of pressure spring 8 is pressed on pressing valve 7, and the other end supports on oil plug 9 through oil section 62, embolism section 61. The arrangement is that the dual-mode switching hole 6 is closed when the application mode of the external lubricating oil cooler is used, but the pumping pressure output oil passage 4 and the pumping pressure return oil passage 5 are kept smooth respectively. Here, the pressure spring 8 passes through the oil passing section 62 of the double-die switching hole 6, that is, a section of the pressure spring 8 is located in the pump pressure output oil passage 4, which does not affect the flow of the lubricating oil because there is a sufficient gap between the spiral loops of the pressure spring 8.
When the application mode of the external lubricating oil cooler is used, the pumping pressure output oil passage 4 is communicated with the cooler 13 by using the high-temperature oil input pipe 14 outside the oil passage distribution body 3, and the cooler 13 is communicated with the pumping pressure return oil passage 5 by using the cooling oil output pipe 15.
As shown in fig. 4 and 5; and a second oil plug 10 and a third oil plug 11 which are used for plugging the pumping pressure output oil passage 4 and the pumping pressure return oil passage 5 respectively can be arranged at the outlet of the pumping pressure output oil passage 4 and the inlet of the pumping pressure return oil passage 5. Therefore, when the application mode of the external lubricating oil cooler is not used, the outlet of the dual-mode switching hole 6, the outlet of the pumping pressure output oil passage 4 and the inlet of the pumping pressure return oil passage 5 are respectively plugged by the oil plug I9, the oil plug II 10 and the oil plug III 11, and the pressure spring 8 and the pressure valve 7 are required to be taken out only before the outlet of the dual-mode switching hole 6 is plugged.
The inner wall of the outlet of the dual-mode switching hole 6, the inner wall of the outlet of the pumping pressure output oil channel 4 and the inner wall of the inlet of the pumping pressure return oil channel 5 are provided with internal threads, the first oil plug 9, the second oil plug 10 and the third oil plug 11 all comprise threaded bolts and sealing gaskets, and the arrangement is that the pipe orifice is tightly plugged by the bolts in a threaded matching mode, so that the pipe orifice is simple and reliable.
The above embodiments are only for the purpose of more clearly describing the invention and should not be considered as limiting the scope of protection covered by the invention, any modification of the equivalent should be considered as falling within the scope of protection covered by the invention.
Claims (6)
1. The structure of the external lubricating oil cooler of the gear box is characterized by comprising an oil channel distribution body (3) arranged on an oil pump side cover (2) of a shell of the gear box (1), wherein a high-temperature lubricating oil pump pressure output oil channel (4) and a cooling lubricating oil pump pressure return oil channel (5) are arranged on the oil channel distribution body (3), and the pump pressure return oil channel (5) is communicated with an original lubricating system oil channel (12) on the shell of the gear box (1).
2. An external lubricating oil cooler structure according to claim 1, characterized in that: the oil passage distribution body (3) is provided with a dual-mode switching hole (6), the outlet of the dual-mode switching hole (6) is positioned on the outer surface of the oil passage distribution body (3), the middle part of the dual-mode switching hole penetrates through the pumping pressure output oil passage (4), the bottom end of the dual-mode switching hole is communicated with the pumping pressure return oil passage (5), and a valve structure capable of enabling the dual-mode switching hole (6) to be connected and disconnected is arranged in the dual-mode switching hole (6) between the pumping pressure output oil passage (4) and the pumping pressure return oil passage (5); and a first oil plug (9) is arranged at an outlet of the double-mode switching hole (6) on the outer surface of the oil passage distribution body (3).
3. An external lubricating oil cooler structure according to claim 2, characterized in that: the dual-mode switching hole (6) is divided into a plug section (61), an oil passing section (62), a valve body section (63) and a communicating section (64), the plug section (61) is a section outside the pumping pressure output oil passage (4), the oil passing section (62) is a section passing through the pumping pressure output oil passage (4), the valve body section (63) is a section between the pumping pressure output oil passage (4) and the pumping pressure return oil passage (5) and close to the pumping pressure output oil passage (4), and the communicating section (64) is a section between the pumping pressure output oil passage (4) and the pumping pressure return oil passage (5) and close to the pumping pressure return oil passage (5); the diameter of the plug section (61) is larger than or equal to that of the oil passing section (62) and larger than or equal to that of the valve body section (63); the diameter of the valve body section (63) is larger than that of the communicating section (64), so that an annular valve pressing table (65) is formed at the position where the valve body section (63) communicates with the communicating section (64).
4. An external lubricating oil cooler structure according to claim 3, characterized in that: a pressure valve (7) and a pressure spring (8) which can be arranged in a valve body section (63) through a plug section (61) and an oil passing section (62) are arranged; when using external lubricating oil cooler's application mode, the export in bimodulus switching hole (6) is blockked in oil plug (9), presses valve (7) to press on annular valve pressure platform (65), and the one end pressure of pressure spring (8) is pressed on pressing valve (7), and the other end supports on oil plug (9) through oil section (62), embolism section (61).
5. An external lubricating oil cooler structure according to claim 2, characterized in that: and a second oil plug (10) and a third oil plug (11) which are used for respectively plugging the pumping pressure output oil passage (4) and the pumping pressure return oil passage (5) are arranged at the outlet of the pumping pressure output oil passage (4) and the inlet of the pumping pressure return oil passage (5).
6. An external lubricating oil cooler structure according to claim 5, characterized in that: the inner wall of the outlet of the dual-mode switching hole (6), the inner wall of the outlet of the pumping pressure output oil channel (4) and the inner wall of the inlet of the pumping pressure return oil channel (5) are provided with internal threads, and the oil plug I (9), the oil plug II (10) and the oil plug III (11) respectively comprise a threaded bolt and a sealing gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023233678.4U CN214331433U (en) | 2020-12-29 | 2020-12-29 | Structure of external lubricating oil cooler of gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023233678.4U CN214331433U (en) | 2020-12-29 | 2020-12-29 | Structure of external lubricating oil cooler of gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214331433U true CN214331433U (en) | 2021-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023233678.4U Active CN214331433U (en) | 2020-12-29 | 2020-12-29 | Structure of external lubricating oil cooler of gear box |
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| CN (1) | CN214331433U (en) |
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- 2020-12-29 CN CN202023233678.4U patent/CN214331433U/en active Active
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