CN113856330B - Spiral oil-gas separation device for hydraulic retarder - Google Patents
Spiral oil-gas separation device for hydraulic retarder Download PDFInfo
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- CN113856330B CN113856330B CN202111108324.3A CN202111108324A CN113856330B CN 113856330 B CN113856330 B CN 113856330B CN 202111108324 A CN202111108324 A CN 202111108324A CN 113856330 B CN113856330 B CN 113856330B
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- 238000000926 separation method Methods 0.000 title claims abstract description 75
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 238000007789 sealing Methods 0.000 claims description 22
- 230000003139 buffering effect Effects 0.000 claims description 4
- 210000004907 gland Anatomy 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 7
- 238000002347 injection Methods 0.000 abstract description 5
- 239000007924 injection Substances 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/04—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia
- B01D45/08—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by utilising inertia by impingement against baffle separators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
- B01D45/14—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces generated by rotating vanes, discs, drums or brushes
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D57/00—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders
- F16D57/02—Liquid-resistance brakes; Brakes using the internal friction of fluids or fluid-like media, e.g. powders with blades or like members braked by the fluid
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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
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Valves And Accessory Devices For Braking Systems (AREA)
- Separating Particles In Gases By Inertia (AREA)
Abstract
The invention relates to an oil-gas separation device, in particular to a spiral oil-gas separation device for a hydraulic retarder, which aims to solve the technical problem that the existing oil-gas separation device for the hydraulic retarder is difficult to process and assemble. The device separates retarder float valve exhaust a small amount of instantaneous oil-gas mixture through structures such as a first-level buffer baffle, umbrella-shaped separation guide, spiral oil-gas separation, radial inner wall exhaust holes and the like, reduces the probability of occurrence of oil injection faults of the retarder working cavity exhaust holes, improves the appearance of the retarder, and improves the working performance of the retarder. In addition, the spiral oil-gas separation device is simple in structure, and the spiral oil-gas separation device body and the separation device upper cover are assembled in a positioning mode through the positioning pins, so that machining and assembling difficulties are greatly reduced.
Description
Technical Field
The invention relates to an oil-gas separation device, in particular to a spiral oil-gas separation device for a hydrodynamic retarder.
Background
As an auxiliary braking device for vehicles, hydrodynamic retarders have been widely used in trucks and buses. The good usability of the vehicle directly influences the safety of the vehicle and the driving experience of a driver. The working principle of the hydraulic retarder is that working oil is hydraulically fed into a working cavity through high-pressure gas to generate braking torque. During the process of exhausting the pressure oil from the working cavity and during the working process of the retarder, part of the oil-gas mixture is exhausted through the exhaust hole. Only the oil-gas mixture is fully and effectively separated, so that the service performance of the retarder can be ensured. How to thoroughly and effectively separate the oil-gas mixture of the retarder has been a technical difficulty.
When the hydraulic retarder is in intervention operation, working oil is hydraulically fed into the working cavity by high-pressure gas, and braking torque is generated through interaction of the stator and the rotor in the working cavity. At the instant of pressing oil, a small portion of the oil-gas mixture is discharged from the working chamber exhaust hole. The discharged oil-gas mixture needs to be subjected to oil-gas separation, so that oil flows back into the cavity, and only gas is discharged to the outside. If the effective oil-gas separation is not carried out, the oil injection fault phenomenon of the exhaust port of the working cavity can occur, the slight oil injection can affect the appearance of the retarder and the vehicle, the complaint of drivers is caused, the braking force can be reduced after the long-time serious oil injection, and the service performance of the retarder is affected. In the Chinese patent with publication number of CN108386463A, although an oil-gas separation device is disclosed, the oil inlets and the oil outlets at two ends of the device are smaller, the middle spiral blade is difficult to be installed in a cylinder, and the processing and assembling difficulties are high. Therefore, a need exists for an oil-gas separation device with convenient processing and assembly, which can effectively separate the oil-gas mixture in the exhaust process of the working cavity of the retarder and reduce the occurrence probability of the retarder fault.
Disclosure of Invention
The invention aims to solve the technical problem that the existing oil-gas separation device of the hydraulic retarder is difficult to process and assemble, and provides a spiral oil-gas separation device for the hydraulic retarder, so that the oil-gas in the hydraulic retarder is effectively separated, and the occurrence probability of retarder faults is reduced.
In order to solve the technical problems, the technical solution provided by the invention is as follows:
the utility model provides a spiral oil gas separation device for hydraulic retarber for install in retarber casing, retarber upper cover, retarber gland three cooperation formation's mounting hole, its special character lies in:
comprises a spiral separating device body and a separating device upper cover which are assembled by positioning pins;
the bottom of the spiral separation device body is open, an oil inlet cavity is arranged in the middle area of the lower part, a spiral air passage communicated with the oil inlet cavity is arranged in the upper part and the side part area, and a sealing ring groove is arranged on the outer wall;
the opening a is used for being arranged at the outlet of the retarder float valve;
the upper part of the inner side wall surface of the outermost ring of the spiral air channel is provided with a first exhaust port for exhausting gas after rotating in the spiral air channel;
the bottom surface of the inner ring of the spiral air passage inclines downwards along with the spiral direction and is used for oil to flow back downwards;
an oil return hole is formed in the position, close to the outer side wall, of the bottom surface of the outermost ring of the spiral air channel, and is used for throwing oil in the oil-gas mixture to the inner wall surface of the spiral separation device body under the action of centrifugal force and obliquely downwards flowing through the oil return hole along the wall surface to return to the working cavity of the retarder;
a sealing ring is arranged in the sealing ring groove and used for sealing between the outer wall of the spiral separation device body and the inner wall of the retarder shell;
and a second exhaust port b is arranged on the upper cover of the separation device at a position corresponding to the first exhaust port.
Further, a sunk baffle is fixedly arranged in the center of the oil inlet cavity, an umbrella-shaped oil baffle is arranged around the baffle, and the baffle and the umbrella-shaped oil baffle form an oil baffle buffer zone for buffering and guiding an oil-gas mixture entering the oil inlet cavity and isolating most of oil;
an air inlet is arranged between the baffle plate and the umbrella-shaped oil baffle plate, and is used for enabling the oil-gas mixture which is guided by the diversion of the umbrella-shaped oil baffle plate to enter the spiral air passage through the air inlet.
Further, the upper surface of the upper cover of the separation device is provided with a supporting boss.
Further, in order to ensure that the installation surface is airtight, the spiral separation device body and the separation device upper cover are in interference fit through the spigot.
Further, in order to facilitate oil backflow, two oil return holes are formed.
Further, the circumferential angles between the two oil return holes and the first exhaust port are 90 degrees and 135 degrees respectively.
Further, the sealing ring groove is positioned on the circumferential outer wall corresponding to the bottom opening part of the spiral separating device body.
Further, the sealing ring is an O-shaped sealing ring.
Compared with the prior art, the invention has the following beneficial effects:
according to the spiral oil-gas separation device for the hydraulic retarder, provided by the invention, a small amount of instantaneous oil-gas mixture discharged by a retarder float valve is effectively separated through the structures such as the first-stage buffering baffle (baffle), the umbrella-shaped separation guide (umbrella-shaped oil baffle), the spiral oil-gas separation (spiral air passage), the radial inner wall exhaust port (first exhaust port) and the like, so that the probability of occurrence of oil injection faults of the exhaust hole of the working cavity of the retarder is reduced, the appearance of the retarder is improved, and the working performance of the retarder is improved. In addition, the spiral oil-gas separation device is simple in structure, and the spiral oil-gas separation device body and the separation device upper cover are assembled in a positioning mode through the positioning pins, so that machining and assembling difficulties are greatly reduced.
Drawings
FIG. 1 is a schematic diagram of a structure of a spiral oil-gas separation device for a hydrodynamic retarder according to the present invention;
FIG. 2 is a schematic view of a structure in which a spiral oil-gas separation device for a hydrodynamic retarder of the present invention is installed in the hydrodynamic retarder;
FIG. 3 is a schematic diagram II of a spiral oil-gas separator for a hydrodynamic retarder according to the present invention, not shown with a locating pin;
FIG. 4 is a top view of the body of the separation device of the spiral oil-gas separation device for a hydrodynamic retarder according to the present invention, wherein c is a dowel hole;
FIG. 5 is a top view of the top cover of the separation device in the spiral oil-gas separation device for a hydrodynamic retarder according to the present invention, wherein b is the second exhaust port and d is the dowel hole;
reference numerals illustrate:
100-spiral oil-gas separation device, 200-retarder shell, 300-retarder upper cover and 400-retarder gland;
110-separating device body, 120-separating device upper cover, 130-locating pin and 140-sealing ring;
1101-oil inlet cavity, 1102-umbrella-shaped oil baffle, 1103-baffle, 1104-air inlet hole, 1105-spiral air passage, 1106-first air outlet, 1107-oil return hole, 1108-mounting spigot and 1109-supporting boss.
Detailed Description
The invention is further described below with reference to the drawings and examples.
The spiral oil-gas separation device 100 for the hydraulic retarder is arranged in a mounting hole formed by matching a retarder shell 200, a retarder upper cover 300 and a retarder gland 400, and comprises a spiral separation device body 110 and a separation device upper cover 120, wherein the spiral separation device body 110 and the separation device upper cover 120 are in interference fit through a spigot so as to ensure that a mounting surface is airtight, and the spiral separation device body 110 and the separation device upper cover 120 are positioned and assembled through a positioning pin 130; the upper surface of the upper cover 120 of the separating apparatus is provided with a supporting boss 1109 for dismounting and replacement and height control.
The bottom of the spiral separation device body 110 is open, an oil inlet cavity 1101 is arranged in the middle area of the lower part, a spiral air passage 1105 communicated with the oil inlet cavity 1101 is arranged in the upper part and the side area, and a sealing ring groove is arranged on the outer wall; the sealing ring groove is positioned on the circumferential outer wall corresponding to the bottom opening part of the spiral separating device body 110; the opening a is used for being arranged at the outlet of the retarder float valve; a first exhaust port 1106 is formed in the upper part of the inner side wall surface of the outermost ring of the spiral air passage 1105, and is used for exhausting the gas after the gas rotates in the spiral air passage 1105; the bottom surface of the inner ring of the spiral air passage 1105 inclines downwards along with the spiral direction and is used for oil to flow back downwards; an oil return hole 1107 is arranged at the position of the bottom surface of the outermost ring of the spiral air flue 1105, which is close to the outer side wall, and is used for throwing oil in the oil-gas mixture to the inner wall surface of the spiral separation device body 110 under the action of centrifugal force and obliquely flowing downwards along the wall surface to return to the retarder working cavity through the oil return hole 1107; the number of the oil return holes 1107 is two, and the circumferential angles between the two oil return holes 1107 and the first exhaust port 1106 are 90 degrees and 135 degrees respectively. The sealing ring 140 is arranged in the sealing ring groove, and the sealing ring 140 is an O-shaped sealing ring and is used for sealing between the outer wall of the spiral separation device body 110 and the inner wall of the retarder shell 200, so that the oil-gas mixture is ensured to completely enter the spiral oil-gas separation device 100 for separation. The second air outlet b is disposed on the separation device upper cover 120 at a position corresponding to the first air outlet 1106, that is, the spiral separation device body 110 and the separation device upper cover 120 are assembled together by determining the assembling direction through the positioning pin 130, so that the first air outlet 1106 of the spiral separation device body 110 corresponds to the second air outlet b of the separation device upper cover 120.
A sunk baffle 1103 is fixedly arranged in the center of the oil inlet cavity 1101, an umbrella-shaped oil baffle 1102 is arranged around the baffle 1103, and the baffle 1103 and the umbrella-shaped oil baffle 1102 form an oil baffle buffer zone for buffering and guiding an oil-gas mixture entering the oil inlet cavity 1101 and blocking most of oil; an air inlet hole 1104 is arranged between the baffle 1103 and the umbrella-shaped oil baffle 1102, and is used for leading the oil-gas mixture which is split and guided by the umbrella-shaped oil baffle 1102 to enter the spiral air passage 1105 through the air inlet hole 1104.
Specifically:
in the invention, an oil baffle buffer area is designed at the oil inlet cavity 1101 of the spiral separation device body 110, a sinking small baffle 1103 structure is designed above the oil inlet cavity 1101, and an umbrella-shaped oil baffle 1102 is designed on the upper wall surface of the oil inlet cavity 1101. Through umbrella-shaped oil baffle 1102 and baffle 1103, the oil-gas mixture entering oil inlet chamber 1101 is guaranteed to be completely blocked and buffered once, and most oil with large mass is blocked back to the lower part for primary coarse separation. Meanwhile, the umbrella-shaped oil baffle 1102 also has the function of diversion guiding, so that a small part of the oil-gas mixture after coarse separation enters the air inlet 1104 of the spiral air passage 1105 in the middle of the top end of the oil inlet cavity 1101 after being guided by the umbrella-shaped oil baffle 1102.
A small amount of small-particle oil-gas mixture is subjected to spiral air passage 1105, the oil-gas mixture rotates in spiral air passage 1105, oil with large mass is thrown to the wall surface under the action of centrifugal force, and flows downwards to oil return hole 1107 along the wall surface in an inclined manner, and light-weight gas is discharged from first exhaust port 1106 after rotating in the air passage. The bottom of the spiral air passage 1105 inclines downwards along with the spiral direction, so that the downward backflow of oil is facilitated.
The first exhaust port 1106 is designed on the radially inner side wall surface of the outermost ring of the spiral air channel 1105 so that large oil droplets are not easy to enter, and light-weight gas can be easily discharged. Two oil return holes 1107 are designed at the bottom of the spiral oil-gas separation device 100, after the hydraulic retarder exits from working, oil after spiral separation flows back into the working cavity of the hydraulic retarder through the oil return holes 1107, so that the repeated circulation of the spiral oil-gas separation device 100 is realized, and the phenomenon that the spiral oil-gas separation device 100 is saturated and fails due to excessive accumulated oil is avoided. The support boss 1109 is designed above the upper cover 120 of the separation device, which is used for facilitating the disassembly, assembly and replacement of the spiral oil-gas separation device 100, and controlling the overall height of the spiral oil-gas separation device 100.
The spiral oil-gas separation device 100 is mainly used for separating a small part of oil-gas mixture which is instantaneously discharged by opening and closing a float valve in the intervention operation of a hydraulic retarder and the working process of the retarder.
The specific working process is as follows:
when hydraulic retarder intervention working pressure oil enters the retarder working chamber, the float valve is rapidly closed and a small portion of the oil-gas mixture is discharged from the float valve into the oil inlet chamber 1101 of the spiral oil-gas separation device 100. The upward-flushed oil-gas mixture is beaten onto the umbrella-shaped oil baffle 1102 above the oil inlet chamber 1101 and the small baffle 1103 on the top, most of oil drops with large mass fall back after being buffered by the baffle, and the gas enters the air inlet 1104 of the spiral air channel 1105 through the guide of the umbrella-shaped surface. The gas entering the spiral airway 1105 contains a portion of the small particle oil. The gas rotates in the spiral air passage 1105, the liquid drops with larger mass are beaten to the air passage wall surface under the action of centrifugal force, flow to the oil return groove of the oil return hole 1107 of the outer ring along the wall surface and the air passage bottom surface, and flow back into the retarder cavity through the oil return hole 1107 after the retarder is out of operation. The gas separated by the spiral air passage 1105 is discharged from the first air outlet 1106 on the inner side and then discharged through the second air outlet b on the retarder cover 300.
Finally, it should be noted that: the foregoing embodiments are merely for illustrating the technical solutions of the present invention, and not for limiting the same, and it will be apparent to those skilled in the art that modifications may be made to the specific technical solutions described in the foregoing embodiments, or equivalents may be substituted for some of the technical features thereof, without departing from the spirit of the technical solutions protected by the present invention.
Claims (7)
1. A spiral oil gas separation device for hydraulic retarber for install in retarber casing (200), retarber upper cover (300), retarber gland (400) three cooperation formation's mounting hole, its characterized in that:
comprises a spiral separating device body (110) and a separating device upper cover (120), which are positioned and assembled by a positioning pin (130);
the bottom of the spiral separation device body (110) is open, an oil inlet cavity (1101) is arranged in the middle area of the lower part, a spiral air passage (1105) communicated with the oil inlet cavity (1101) is arranged in the upper part and the side area, and a sealing ring groove is arranged on the outer wall;
the opening a is used for being arranged at the outlet of the retarder float valve;
a first exhaust port (1106) is arranged at the upper part of the inner side wall surface of the outermost ring of the spiral air passage (1105) and is used for exhausting gas after the gas rotates in the spiral air passage (1105);
the bottom surface of the inner ring of the spiral air channel (1105) inclines downwards along with the spiral direction and is used for oil to flow back downwards;
an oil return hole (1107) is formed in the position, close to the outer side wall, of the bottom surface of the outermost ring of the spiral air channel (1105), and is used for throwing oil in the oil-gas mixture to the inner wall surface of the spiral separation device body (110) under the action of centrifugal force and obliquely flowing downwards along the wall surface through the oil return hole (1107) to return to the working cavity of the retarder;
a sealing ring (140) is arranged in the sealing ring groove and used for sealing between the outer wall of the spiral separation device body (110) and the inner wall of the retarder shell (200);
a second exhaust port b is arranged on the separation device upper cover (120) at a position corresponding to the first exhaust port (1106);
a sunk baffle (1103) is fixedly arranged in the center of the oil inlet cavity (1101), umbrella-shaped oil baffle plates (1102) are arranged around the baffle (1103), and the baffle (1103) and the umbrella-shaped oil baffle plates (1102) form an oil baffle buffer zone for buffering and guiding an oil-gas mixture entering the oil inlet cavity (1101) and isolating most of oil;
an air inlet hole (1104) is arranged between the baffle plate (1103) and the umbrella-shaped oil baffle plate (1102), and is used for enabling the oil-gas mixture which is shunted and guided by the umbrella-shaped oil baffle plate (1102) to enter the spiral air passage (1105) through the air inlet hole (1104).
2. A spiral oil and gas separator for a hydrodynamic retarder according to claim 1, characterized in that:
the upper surface of the upper cover (120) of the separating device is provided with a supporting boss (1109).
3. A spiral oil and gas separator for a hydrodynamic retarder according to claim 2, characterized in that:
the screw separation device body (110) and the separation device upper cover (120) are in interference fit through the spigot.
4. A spiral oil and gas separator for a hydrodynamic retarder according to claim 3, characterized in that:
two oil return holes (1107) are formed.
5. The spiral oil and gas separator for a hydrodynamic retarder according to claim 4, wherein:
the circumferential angles between the two oil return holes (1107) and the first exhaust port (1106) are 90 degrees and 135 degrees respectively.
6. The spiral oil and gas separator for a hydrodynamic retarder according to claim 5, wherein:
the sealing ring groove is positioned on the circumferential outer wall corresponding to the bottom opening part of the spiral separating device body (110).
7. The spiral oil and gas separator for a hydrodynamic retarder according to claim 6, wherein:
the sealing ring (140) is an O-shaped sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111108324.3A CN113856330B (en) | 2021-09-22 | 2021-09-22 | Spiral oil-gas separation device for hydraulic retarder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111108324.3A CN113856330B (en) | 2021-09-22 | 2021-09-22 | Spiral oil-gas separation device for hydraulic retarder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113856330A CN113856330A (en) | 2021-12-31 |
| CN113856330B true CN113856330B (en) | 2023-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111108324.3A Active CN113856330B (en) | 2021-09-22 | 2021-09-22 | Spiral oil-gas separation device for hydraulic retarder |
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| Country | Link |
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| CN (1) | CN113856330B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004018019A1 (en) * | 2004-04-14 | 2005-11-03 | Mann + Hummel Gmbh | oil separator |
| CN205109282U (en) * | 2015-09-25 | 2016-03-30 | 中国航空工业集团公司沈阳发动机设计研究所 | Oil -gas separator |
| CN105697600A (en) * | 2016-03-01 | 2016-06-22 | 宁波华盛联合制动科技有限公司 | Oil-gas separation device of hydrodynamic retarder |
| CN105664535A (en) * | 2016-03-07 | 2016-06-15 | 沈阳化工大学 | Spiral coil plate hydrocyclone separation device |
| CN108386463A (en) * | 2018-05-02 | 2018-08-10 | 三门县职业中等专业学校 | A kind of Retarder |
| CN213221295U (en) * | 2020-08-13 | 2021-05-18 | 常熟龙飞医药设备科技有限公司 | Novel spiral vapour and liquid separator |
-
2021
- 2021-09-22 CN CN202111108324.3A patent/CN113856330B/en active Active
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| CN113856330A (en) | 2021-12-31 |
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