CN212690794U - Transmission active lubrication housing - Google Patents
Transmission active lubrication housing Download PDFInfo
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- CN212690794U CN212690794U CN202021899843.7U CN202021899843U CN212690794U CN 212690794 U CN212690794 U CN 212690794U CN 202021899843 U CN202021899843 U CN 202021899843U CN 212690794 U CN212690794 U CN 212690794U
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Abstract
The transmission active lubrication shell comprises a shell, wherein a main trunk channel connected with an oil outlet of an oil pump of a transmission lubrication system and a branch trunk channel for conveying lubricating oil to a contact position of each bearing and each gear in the transmission are arranged on the shell, the main trunk channel is integrally formed in the shell, a temperature exchanger for cooling the lubricating oil conveyed by the main trunk channel and an oil accumulation cavity communicated with the branch trunk channel are arranged on the shell, and the main trunk channel and the branch trunk channel are communicated with the oil accumulation cavity through the temperature exchanger. The utility model provides high lubricating system's compact structure nature in the derailleur makes lubricating oil input to being effectively cooled off before the trunk way, improves the heat dissipation rate of lubricating oil, and lubricating oil plays lubricated and cooling dual function after the trunk way output, promotes the lubrication and the radiating effect of whole derailleur, guarantees that lubricating oil does not cut off in each trunk way, steadily lubricates and cools off each bearing and gear contact department, improves lubricating efficiency.
Description
Technical Field
The utility model relates to a derailleur initiative lubricating housing belongs to the lubricated technical field of derailleur.
Background
The main lubrication modes of the new energy source box commonly used in the market are splash lubrication and active lubrication, and both have respective defects.
Splash lubrication: this lubricated mode make full use of the gear as power original paper, splash the eminence with lubricating oil, again through adding the oil blocking rib in the gearbox casing, lead the lubricating oil to need lubricated and heat dissipation department, this scheme advantage is good for economic nature, does not need additionally to add the part, and is with low costs. The gear transmission has the disadvantages that the power of the lubricating oil comes from the rotation of the gear, the flow is not controllable, the lubricating oil cannot reach the designated position through splashing because the rotating speed of the gear is low under the low-speed high-torque working condition, so that the heat dissipation function of the lubricating agent is lacked at each friction position, worse, the transmitted torque is high, the positive pressure of the friction surface also reaches a high value, so that the oil film on the friction surface is broken, a large amount of heat is generated, finally, if the temperature exceeds the heat-resistant limit of the material, the product is damaged, and when the gear is operated at a high speed, the gear throws the oil at a high speed, the oil blocking rib blocks the oil.
Active lubrication: this lubrication mode can solve the lubrication of splashing and confirm, through control system to lubrication system's oil pump rotational speed control, connects the pipeline in the oil-out position of oil pump, exports lubricating oil to the position that needs the lubrication, and control system can obtain different flows through the rotational speed of control oil pump, because the lubricated oil mass can accurate control, gets rid of the oil process reduction at the rotatory in-process of gear, and energy consumption just reduces, and efficiency has just promoted. The gearbox has the disadvantages that a plurality of parts need to be added in the scheme, the pipeline needs to be assembled at present, the pipeline can be arranged inside the cavity of the shell and also can be arranged outside the shell, when the pipeline is arranged inside the shell, the pipeline avoids rotating parts and avoids the contact between the pipeline and the rotating parts, so that danger is avoided, the gearbox needs a larger space, when the pipeline is arranged outside the shell, certain clearance is needed between the pipeline and the outer wall of the shell due to the structure of the pipeline, and in the working process of the gearbox, the pipeline and the shell are not integrated, so that the risk of collision is avoided. The arrangement of either conduit ultimately affects the size and safety of the transmission.
Retrieved related prior art:
1. cn200780015647.x — a modular system for a gearbox cooling device for a cooler with cooling device of a gearbox;
2. CN 201110217748.3-Modular System and gearbox structural series of gearbox Cooling device of gearbox with Cooling device of cooler of gearbox;
3. CN 201620098354.9-a transmission housing;
4. CN 201721140316.6-transmission filter cooling device;
5. CN 201811333266.2-powertrain cooling system and vehicle;
6. CN 201821633495.1-Cooling and lubricating system for electrically-driven gearbox;
7. CN201921678999. X-A cooling device for gearbox housing processing.
SUMMERY OF THE UTILITY MODEL
The utility model provides a derailleur initiative lubrication casing improves lubricating system's compact structure nature in the derailleur, makes lubricating oil input to being effectively cooled off before the trunk way, improves the heat dissipation rate of lubricating oil, and lubricating oil plays lubricated and cooling dual function after the trunk way output, promotes the lubrication and the radiating effect of whole derailleur, guarantees that lubricating oil does not cut off in each trunk way, steadily lubricates and cools off each bearing and gear contact department, improves lubricating efficiency.
In order to achieve the above purpose, the utility model adopts the technical scheme that:
the transmission active lubrication shell comprises a shell body, wherein a main trunk channel connected with an oil outlet of an oil pump of a transmission lubrication system and a branch trunk channel for conveying lubricating oil to contact positions of bearings and gears in the transmission are arranged on the shell body, and the transmission active lubrication shell is characterized in that: the main trunk passage is integrally formed in the shell, the shell is provided with a temperature exchanger for cooling lubricating oil conveyed by the main trunk passage and an oil accumulation cavity communicated with the branch trunk passage, and the main trunk passage is communicated with the oil accumulation cavity through the temperature exchanger.
Preferably, the temperature exchanger is composed of a double-channel cooling cavity and a rear cover covering the double-channel cooling cavity to seal the double-channel cooling cavity, and the main channel and the double-channel cooling cavity are integrally cast and formed with the shell.
Preferably, the double-channel cooling cavity is internally provided with an oil channel for oil to flow through and a cooling channel for cooling liquid to flow through, the trunk channel is communicated with an oil inlet at the front end of the oil channel, the oil accumulation cavity is communicated with an oil outlet at the rear end of the oil channel, and the cooling channel surrounds the surrounding oil channel.
Preferably, the double-cooling cavity is a cuboid cavity integrally formed on the shell, the outer edge of the double-cooling cavity is connected with the rear cover through a bolt, the inner edge for forming an oil duct is arranged in the double-cooling cavity, the inner edge is of a circulating loop structure in the double-cooling cavity, a cooling channel is formed between the outer edge and the inner edge, and a water inlet and a water outlet of the cooling channel are respectively arranged on the rear cover.
Preferably, the oil passage is a plurality of wavy paths connected in a shape like a Chinese character 'ji', and the cooling passage surrounds and surrounds the outer side of the oil passage, corresponds to the wavy paths of the oil passage, and bends along with the bending of the paths of the oil passage.
Preferably, the inner surface of the rear cover opposite to the double-channel cooling cavity is provided with a strip-shaped blocking rib for extending the circulation path of the cooling channel, the height of the blocking rib is the same as the depth of the cooling channel, the blocking rib is inserted into the cooling channel, one end of the blocking rib is contacted with the outer edge, and the other end of the blocking rib is separated from the inner edge so that the cooling liquid circulates along the blocking rib.
Preferably, the temperature exchanger and the oil accumulation cavity are separated by a shell wall of the shell, and an oil passing hole directly communicating the temperature exchanger and the oil accumulation cavity is formed in the shell wall of the shell.
Preferably, the oil accumulation cavity is an oil cavity integrally cast and formed with the shell, and an oil delivery hole communicated with the branch channel is formed in the side wall of the oil accumulation cavity.
The beneficial effects of utility model are that:
1. the utility model discloses a derailleur initiative lubrication casing, with main road integrated into one piece in the casing, reduce the occupation space that the main road is done, avoid installing the collision risk of pipeline and casing additional, improve lubricating system's in the derailleur compact structure nature, and set up the temperature exchanger in the casing, a lubricating oil for cooling main road is carried, make lubricating oil input to branch by effective cooling before the road, improve the radiating rate of lubricating oil, lubricating oil plays lubricated and cooling dual function after the output of branch road, promote the lubrication and the radiating effect of whole derailleur.
2. The main trunk passage and the branch trunk passages are communicated with the oil accumulation cavity through the temperature exchanger, lubricating oil of the main trunk passage flows into the oil accumulation cavity after being cooled by the temperature exchanger, then flows into the branch trunk passages from the oil accumulation cavity, the oil accumulation cavity accumulates oil, inflow pressure and flow rate of the lubricating oil in each branch trunk passage are stabilized, uninterrupted flow of the lubricating oil in each branch trunk passage is ensured, the contact part of each bearing and each gear is lubricated and cooled stably, and lubrication efficiency is improved.
3. The oil duct is a plurality of wavy paths connected in a shape like a Chinese character 'ji', the cooling channel surrounds and surrounds the outer side of the oil duct, corresponds to the wavy path of the oil duct and bends along with the bending of the path of the oil duct, the strip-shaped blocking ribs for prolonging the circulation path of the cooling channel are arranged in the rear cover, the circulation path of the cooling channel is prolonged, the water inlet and the water outlet of the cooling channel are arranged on the rear cover, the flowing direction of cooling liquid in the cooling channel is controlled, the lubricating oil and the cooling liquid can form reverse flowing, the cooling efficiency of the lubricating oil is improved, and the lubricating oil is guaranteed to be effectively cooled in the temperature exchanger.
4. The temperature exchanger is directly communicated with the oil accumulation cavity through the oil passing hole in the shell wall, an oil passing pipeline is not required to be additionally arranged, the conveying efficiency of the lubricating oil is improved, the shell structure is simplified, the lubricating oil is cooled and then rapidly enters the oil accumulation cavity and flows to each branch trunk channel from the oil accumulation cavity, the flow path of the cooled lubricating oil is reduced, the heat absorption probability is reduced, and the cooling effect is improved.
Drawings
FIG. 1 is a schematic diagram of an active lubrication housing of a transmission in accordance with an embodiment.
FIG. 2 is a schematic illustration of the transmission active lubrication housing with the rear cover removed.
FIG. 3 is a front view of a dual-pass cooling chamber.
Fig. 4 is a schematic structural view of the rear cover.
Fig. 5 is a schematic distribution diagram of the water inlet and the water outlet on the rear cover.
FIG. 6 is a perspective view of the rib of the aft cover in cooperation with the dual cooling cavity.
FIG. 7 is a schematic diagram showing the distribution of the oil accumulation cavity and the branch road on the housing.
FIG. 8 is a schematic view of the oil passing hole communicating the temperature exchanger and the oil collecting cavity.
Detailed Description
The following describes embodiments of the present invention in detail with reference to fig. 1 to 8.
The transmission active lubrication shell comprises a shell 1, wherein a main trunk channel 3 connected with an oil outlet of an oil pump of a transmission lubrication system is arranged on the shell 1, and a branch trunk channel 4 for conveying lubricating oil to contact positions of bearings and gears in the transmission is arranged, and the transmission active lubrication shell is characterized in that: the main trunk passage 3 is integrally formed in the shell 1, the shell 1 is provided with a temperature exchanger 5 used for cooling lubricating oil conveyed by the main trunk passage and an oil accumulation cavity 2 communicated with the branch trunk passage 4, and the main trunk passage 3 and the branch trunk passage 4 are communicated with the oil accumulation cavity 2 through the temperature exchanger 5.
The lubricated casing of derailleur initiative, with main road 3 integrated into one piece in casing 1, reduce the occupation space that main road does 3, avoid installing the collision risk of pipeline and casing additional, improve lubricating system's in the derailleur compact structure nature, and go up in casing 1 and set up temperature exchanger 5, a lubricating oil for cooling main road 3 transport, make lubricating oil input to branch trunk road 4 before by effective cooling, improve the radiating rate of lubricating oil, lubricating oil plays lubricated and cooling dual function after branch trunk road 4 outputs, promote the lubrication and the radiating effect of whole derailleur. Main road 3 and branch road 4 are through temperature exchanger 5 and long-pending oily chamber UNICOM, the lubricating oil of main road 3 flows into in long-pending oily chamber 2 after the cooling of temperature exchanger 5, later flow to branch road from long-pending oily chamber 2 in, long-pending oily chamber 2 accumulates fluid, stabilize inflow pressure and the velocity of flow of lubricating oil in each branch road 4, guarantee that lubricating oil does not cut off in each branch road 4, steadily lubricate and cool each bearing and gear contact department, improve lubricating efficiency.
The temperature exchanger 5 is composed of a double-channel cooling cavity 51 and a rear cover 52 covering the double-channel cooling cavity 51 to seal the double-channel cooling cavity, and the main channel 3 and the double-channel cooling cavity 51 are integrally cast and molded with the shell 1. The back cover 52 covers the double-cooling cavity 51 to seal the double-cooling cavity, and the inner surface of the back cover 52 is in sealing fit with the double-cooling cavity 51 to ensure the sealing performance of the double-cooling cavity 51 when in use, and ensure that lubricating oil and cooling liquid flow independently and cannot be mixed and injected.
The two-channel cooling cavity 51 is provided with an oil channel 51.1 for oil to flow through and a cooling channel 51.2 for cooling liquid to flow through, the trunk channel 3 is communicated with an oil inlet at the front end of the oil channel 51.1, the oil accumulation cavity 2 is communicated with an oil outlet at the rear end of the oil channel 51.1, and the cooling channel 51.2 surrounds the oil channel 51.1. Lubricating liquid in the lubricating system of the transmission is pumped into the main channel 3 by an oil pump, can be cooled and reduced from the main channel 3 to the flow double-channel cooling cavity 51, then flows into the oil accumulation cavity 2, and then flows into the branch channel from the oil accumulation cavity 2 to lubricate the position needing to be lubricated. The cooling channel 51.2 surrounds the oil channel 51.1, so that when lubricating oil flows through the oil channel 51.1, the cooling liquid in the cooling channel 51.2 can absorb the heat of the lubricating oil, the lubricating oil is cooled and the temperature is reduced, the temperature exchange between the lubricating oil and the cooling liquid is formed, the lubricating oil is effectively cooled, the lubricating oil flowing out of the branch channel 4 not only has a lubricating function, but also has a cooling effect, and the heat dissipation effect of the whole transmission is improved.
The double-cooling cavity 51 is a rectangular cavity integrally formed on the housing 1, an outer edge 53 of the double-cooling cavity 51 is connected with the rear cover 52 through a bolt, an inner edge 54 for forming an oil passage 51.1 is arranged in the double-cooling cavity 51, the inner edge 54 is of a circulation loop structure in the double-cooling cavity 51, a cooling channel 51.2 is formed between the outer edge 53 and the inner edge 54, and a water inlet 51.21 and a water outlet 51.22 of the cooling channel 51.2 are respectively arranged on the rear cover 52. It can be seen from the drawings that the double-cooling cavity 51 has a cavity structure, the outer edge 53 and the inner edge 54 are both formed by casting with the housing 1, the inner edge 54 forms a closed oil passage 51.1 for a circulation loop structure, so that the oil passage 51.1 and the cooling passage 51.2 are independent from each other, the oil passage 51.1 and the cooling passage 51.2 which are independent from each other and sealed are formed after the rear cover 52 is covered, the water inlet 51.21 and the water outlet 51.22 of the cooling passage 51.2 are formed on the rear cover 52, the water inlet 51.21 is close to the oil outlet at the rear end of the oil passage 51.1, the water outlet 51.22 is close to the oil inlet at the front end of the oil passage 51.1, so that the oil flowing direction in the oil passage 51.1 is opposite to the cooling liquid passage direction in the cooling passage 51.2, the cooling efficiency is further improved.
The oil passage 51.1 is a plurality of wavy paths connected in a zigzag manner, and the cooling passage 51.2 surrounds and surrounds the outer side of the oil passage 51.1, corresponds to the wavy path of the oil passage 51.1, and bends along with the bending of the path of the oil passage 51.1. The inner surface of the back cover 52 opposite to the double-channel cooling cavity 51 is provided with a strip-shaped baffle rib 52.1 for prolonging the circulation path of the cooling channel 51.2, the height of the baffle rib 52.1 is the same as the depth of the cooling channel 51.2, the baffle rib 52.1 is inserted into the cooling channel 51.2, one end of the baffle rib is contacted with the outer edge 53, and the other end of the baffle rib is separated from the inner edge 54 so that the cooling liquid circulates along the baffle rib 52.1. As shown in fig. 6, the insertion of the rib 52.1 cuts off the horizontal path of the cooling channel 51.2 between the outer edge 53 and the inner edge 54, and the cooling liquid can only go around the rib 52.1, thereby prolonging the flow path of the cooling liquid in the cooling channel 51.2 and improving the cooling effect. The oil duct 51.1 is a plurality of wavy paths connected in a shape like a Chinese character 'ji', the cooling channel 51.2 surrounds and surrounds the outer side of the oil duct, corresponds to the wavy path of the oil duct 51.1, bends along with the bending of the path of the oil duct 51.1, a strip-shaped blocking rib 52.1 for prolonging the circulation path of the cooling channel is arranged in the rear cover 52, the circulation path of the cooling channel 51.2 is prolonged, a water inlet and a water outlet of the cooling channel 51.2 are arranged on the rear cover, the flowing direction of cooling liquid in the cooling channel is controlled, so that the lubricating oil and the cooling liquid can form reverse flow, the cooling efficiency of the lubricating oil is improved, and the lubricating oil is effectively cooled in the temperature exchanger.
The temperature exchanger 5 and the oil accumulation cavity 2 are separated by a shell wall of the shell 1, and an oil passing hole 11 which is directly communicated with the temperature exchanger 5 and the oil accumulation cavity 2 is formed in the shell wall of the shell 1. The temperature exchanger 5 is directly communicated with the oil accumulating cavity 2 through the oil passing hole 11 on the shell wall, an oil passing pipeline is not required to be additionally arranged, the conveying efficiency of the lubricating oil is improved, the shell structure is simplified, the lubricating oil quickly enters the oil accumulating cavity after being cooled and flows to each branch trunk passage from the oil accumulating cavity, the flow path of the cooled lubricating oil is reduced, the heat absorption probability is reduced, and the cooling effect is improved.
The oil accumulation cavity 2 is an oil cavity which is integrally cast and formed with the shell 1, and an oil feeding hole 21 communicated with the branch channel 4 is formed in the side wall of the oil accumulation cavity 2. The oil accumulation cavity 2 accumulates oil, stabilizes the inflow pressure and the flow rate of the lubricating oil in each branch passage 4, ensures that the lubricating oil in each branch passage 4 does not flow out, stably lubricates and cools the contact part of each bearing and each gear, and improves the lubricating efficiency.
The technical solutions of the embodiments of the present invention are completely described above with reference to the accompanying drawings, and it should be noted that the described embodiments are only some 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 efforts belong to the protection scope of the present invention.
Claims (8)
1. Derailleur initiative lubrication housing including casing (1), sets up main line (3) of being connected with derailleur lubricating system's oil pump oil-out on casing (1) and carry lubricating oil to branch trunk line (4) of each bearing and gear contact department in the derailleur, its characterized in that: the main trunk line (3) is integrally formed in the shell (1), the shell (1) is provided with a temperature exchanger (5) used for cooling lubricating oil conveyed by the main trunk line and an oil accumulation cavity (2) communicated with the branch trunk line (4), and the main trunk line (3) and the branch trunk line (4) are communicated with the oil accumulation cavity (2) through the temperature exchanger (5).
2. The transmission active lubrication housing of claim 1, wherein: the temperature exchanger (5) is composed of a double-channel cooling cavity (51) and a rear cover (52) covering the double-channel cooling cavity (51) to seal the double-channel cooling cavity, and the main channel (3) and the double-channel cooling cavity (51) are integrally cast and formed with the shell (1).
3. The transmission active lubrication housing of claim 2, wherein: the double-channel cooling cavity (51) is internally provided with an oil channel (51.1) for oil to flow through and a cooling channel (51.2) for cooling liquid to flow through, the trunk channel (3) is communicated with an oil inlet at the front end of the oil channel (51.1), the oil accumulation cavity (2) is communicated with an oil outlet at the rear end of the oil channel (51.1), and the cooling channel (51.2) surrounds and surrounds the oil channel (51.1).
4. The transmission active lubrication housing of claim 3, wherein: the double-cooling cavity (51) is a cuboid cavity integrally formed on the shell (1), the outer edge (53) of the double-cooling cavity (51) is connected with the rear cover (52) through a bolt, an inner edge (54) used for forming an oil channel (51.1) is arranged in the double-cooling cavity (51), the inner edge (54) is of a circulation loop structure in the double-cooling cavity (51), a cooling channel (51.2) is formed between the outer edge (53) and the inner edge (54), and a water inlet (51.21) and a water outlet (51.22) of the cooling channel (51.2) are respectively formed in the rear cover (52).
5. The transmission active lubrication housing of claim 4, wherein: the oil passage (51.1) is a plurality of wavy paths connected in a shape like a Chinese character 'ji', and the cooling channel (51.2) surrounds and surrounds the outer side of the oil passage (51.1), corresponds to the wavy path of the oil passage (51.1), and bends along with the bending of the path of the oil passage (51.1).
6. The transmission active lubrication housing of claim 5, wherein: the inner face of the rear cover (52) opposite to the double-channel cooling cavity (51) is provided with a strip-shaped blocking rib (52.1) for extending the circulation path of the cooling channel (51.2), the height of the blocking rib (52.1) is the same as the depth of the cooling channel (51.2), the blocking rib (52.1) is inserted into the cooling channel (51.2), one end of the blocking rib is in contact with the outer edge (53), and the other end of the blocking rib is separated from the inner edge (54) to enable cooling liquid to circulate around the blocking rib (52.1).
7. The transmission active lubrication housing of claim 1, wherein: the temperature exchanger (5) and the oil accumulation cavity (2) are separated by a shell wall of the shell (1), and an oil passing hole (11) which is directly communicated with the temperature exchanger (5) and the oil accumulation cavity (2) is formed in the shell wall of the shell (1).
8. The transmission active lubrication housing of claim 7, wherein: the oil accumulation cavity (2) is an oil cavity which is integrally cast and formed with the shell (1), and an oil feeding hole (21) communicated with the branch trunk passage (4) is formed in the side wall of the oil accumulation cavity (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021899843.7U CN212690794U (en) | 2020-09-03 | 2020-09-03 | Transmission active lubrication housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021899843.7U CN212690794U (en) | 2020-09-03 | 2020-09-03 | Transmission active lubrication housing |
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| Publication Number | Publication Date |
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| CN212690794U true CN212690794U (en) | 2021-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021899843.7U Active CN212690794U (en) | 2020-09-03 | 2020-09-03 | Transmission active lubrication housing |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023010946A1 (en) * | 2021-08-03 | 2023-02-09 | 精进电动科技股份有限公司 | Speed reducer casing and electric drive assembly |
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2020
- 2020-09-03 CN CN202021899843.7U patent/CN212690794U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023010946A1 (en) * | 2021-08-03 | 2023-02-09 | 精进电动科技股份有限公司 | Speed reducer casing and electric drive assembly |
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