CN103382891A - Power takeoff at rear end of engine - Google Patents
Power takeoff at rear end of engine Download PDFInfo
- Publication number
- CN103382891A CN103382891A CN2012101331407A CN201210133140A CN103382891A CN 103382891 A CN103382891 A CN 103382891A CN 2012101331407 A CN2012101331407 A CN 2012101331407A CN 201210133140 A CN201210133140 A CN 201210133140A CN 103382891 A CN103382891 A CN 103382891A
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- Prior art keywords
- power take
- housing
- bearing
- power takeoff
- oil
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- 125000006850 spacer group Chemical group 0.000 claims description 16
- 239000011148 porous material Substances 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 239000010687 lubricating oil Substances 0.000 abstract 2
- 238000007796 conventional method Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 7
- 238000009434 installation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Arrangement And Driving Of Transmission Devices (AREA)
- General Details Of Gearings (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The invention discloses a power takeoff at the rear end of an engine. The power takeoff comprises a power takeoff input end, a power takeoff output end and a power takeoff housing, wherein a bearing cavity, in which a bearing can be mounted, is formed in the power takeoff housing; the power takeoff housing can be arranged on a flywheel housing in an embedded manner, and is in detachable connection with the flywheel housing; a lubricating oil channel communicated with the bearing cavity is arranged at the part, embedded in the flywheel housing, of the power takeoff housing. As the power takeoff housing can be arranged on the flywheel housing in an embedded manner, and is in detachable connection with the flywheel housing, the problem that the power takeoff at the rear end of the engine is difficult to dismount and mount in the prior art is solved; as the lubricating oil channel communicated with the bearing cavity in the power takeoff housing is arranged at the part, embedded in the flywheel housing, of the power takeoff housing, the interior of the power takeoff can be lubricated directly; compared with the conventional method in which the bearing in the power takeoff is lubricated by adopting a circumscribed oil passage, not only the inner mounting space of the engine but also the production cost are reduced.
Description
Technical field
The present invention relates to the engine torque extracting machine technical field, relate in particular to a kind of motor rear-end power takeoff device.
Background technique
Development along with society, heavy cement stirring conveying vehicle and the demand of large-tonnage special car on market increase, the power takeoff of motor and the matching deficiency of car load power system have appearred, badly influence the reliability and safety of motor upper end power system, its main cause is that the power take-off that adopts is mainly that crank pulley by front end is directly driven by belt, it is little that this not only exists output torque, the shortcoming that noise is large also easily causes the even lost of life of motor of power takeoff itself.
Thereby having produced the rear-end power takeoff device that drives by crankshaft gear in the motor rear end, its groundwork principle is to drive idle gear by crankshaft gear, then drives the power take-off gear shaft by idle gear and be rotated, by the output that will rotatablely move of power take-off gear shaft.
Although present rear-end power takeoff device has overcome the little and large shortcoming of noise of front end power take-off output torque, but the housing of power take-off and the shell cast of engine flywheel become one structure at present, cause the dismounting of power take-off to become very inconvenient, and the lubricated of the bearing in power take-off need to be realized by external oil duct, this has not only caused the crowded of engine interior space, and has increased manufacture cost.
Therefore, how developing a kind of both easy accessibility, can realize again the inner rear-end power takeoff device that directly lubricates, is the technical problem that present those skilled in the art need solution badly.
Summary of the invention
The purpose of this invention is to provide a kind of motor rear-end power takeoff device, so that the easy accessibility of rear-end power takeoff device, and can realize that self is inner directly lubricated, thus realize the saving of cost.
For solving above-mentioned prior art problem, the invention provides a kind of motor rear-end power takeoff device, comprise power take-off input end, power take-off output terminal, power take-off housing and the power take-off end cap that is installed on described auxiliary-drive casing end of body, described power take-off housing inside is provided with for bearings mounted bearing bore, described power take-off housing can be embedded in flywheel shell and be connected with described flywheel shell is dismantled and assembled, and the part that described power take-off housing is embedded at described flywheel shell is provided with the oil leab that communicates with described bearing bore.
Preferably, described power take-off output terminal is provided with output flange.
Preferably, described power take-off housing is connected with described flywheel shell bolt.
Preferably, described oil leab specifically comprises:
Be opened in annular oil groove on described power take-off housing and that communicate with the flywheel shell oil inlet hole;
One end communicates with described annular oil groove, the power take-off oil inlet hole that the other end communicates with described bearing bore;
One end communicates with described bearing bore, the power take-off spill port that the other end communicates with gear-box.
Preferably, also comprise the O RunddichtringO that is arranged at described annular oil groove both sides.
Preferably, described power take-off oil inlet hole comprises:
The first Oil Guide road and the second Oil Guide road and be arranged at intercommunicating pore on described annular oil groove, described the first Oil Guide road is along the axial setting of described power take-off housing, described intercommunicating pore is communicated with described the first Oil Guide road and described annular oil groove, described the second Oil Guide road is along the radially setting of described power take-off housing, and it communicates with described the first Oil Guide road and described bearing bore simultaneously.
Preferably, the bearing that is arranged at close power take-off input end one side in described bearing bore is roller bearing, and a side bearing of close power take-off output terminal is deep groove ball bearing.
Preferably, be provided with the first gear shaft spacer for restriction bearing inner race axial float between described roller bearing and deep groove ball bearing, described roller bearing is provided be used to the back-up ring that limits its outer ring axial float near a side of power take-off input end, described deep groove ball bearing compresses its bearing outer ring near a side of output terminal by the power take-off end cap, compresses its bearing inner race by output flange.
Preferably, also comprise the second gear shaft spacer between the inner ring that is arranged at described output flange and described deep groove ball bearing, and be provided with seal arrangement between the gear shaft of described the second gear shaft spacer and described motor rear-end power takeoff device.
Preferably, be provided with outside framework oil seal between described power take-off end cap and described the second gear shaft spacer.
as can be seen from the above technical solutions, motor rear-end power takeoff device provided by the present invention, because its housing can be embedded in flywheel shell, and be connected with flywheel shell is dismantled and assembled, thereby efficiently solve present motor rear-end power takeoff device dismounting hard problem, the part that simultaneously the present invention is embedded at flywheel shell at the power take-off housing also is provided with the oil leab that communicates with bearing bore in the power take-off housing, this oil leab will communicate with the flywheel casing oil inlet hole on flywheel shell after power take-off is installed on flywheel shell, oil leab in flywheel casing oil inlet hole and gear-box communicates, thereby realize that power take-off is inner directly lubricated, compare with the mode of the lubricated power take-off internal bearings of the external oil duct of present employing, not only saved the installing space of engine interior, also reduced simultaneously cost of production.
Description of drawings
The scheme of installation of motor rear-end power takeoff device on flywheel shell that Fig. 1 provides for the embodiment of the present invention;
The partial sectional view of the motor rear-end power takeoff device that Fig. 2 provides for the embodiment of the present invention.
In upper Fig. 1-Fig. 2,1 is the power take-off gear, and 2 is flywheel shell, 3 is idle gear, and 4 is crankshaft gear, and 5 is roller bearing, 6 is the O RunddichtringO, 7 is the first gear shaft spacer, and 8 is bearing bore, and 9 is the power take-off end cap, 10 is outside framework oil seal, 11 is output flange, and 12 is deep groove ball bearing, and 13 is bolt of cover, 14 is the second Oil Guide road, 15 is the first Oil Guide road, and 16 is back-up ring, and 17 is the power take-off housing, 18 is the second gear shaft spacer, A is the flywheel shell oil inlet hole, and B is annular oil groove, and C is the power take-off spill port.
Embodiment
Core of the present invention is to provide a kind of motor rear-end power takeoff device, this motor rear-end power takeoff device is by adopting removable power take-off shell to be embedded in flywheel casing, the dismounting difficult problem of the power take-off that effectively solves, simultaneously motor rear-end power takeoff device provided by the present invention is embedded at part on flywheel casing and also is provided with the oil leab that communicates with bearing bore in the power take-off housing, thereby the inside of having realized power take-off is directly lubricated, effectively save the inside installing space of motor, reduced simultaneously cost of production.
In order to make those skilled in the art person understand better the solution of the present invention, the present invention is described in further detail below in conjunction with the drawings and specific embodiments.
Please refer to the scheme of installation of motor rear-end power takeoff device on flywheel shell that Fig. 1 accompanying drawing 1 provides for the embodiment of the present invention.
The power take-off housing 17 of the motor rear-end power takeoff device that the embodiment of the present invention provides is embedded in flywheel shell 2, and is connected with flywheel shell 2 is dismantled and assembled, and power take-off gear 1 is meshed with idle gear 3, and idle gear 3 is meshed with the crankshaft gear 4 of motor.In the course of the work, the crankshaft gear 4 of motor drives idle gear 3 and rotates, and idle gear 3 passes to power take-off gear 1 with rotation, and finally exports torque by the gear shaft of power take-off.
Motor rear-end power takeoff device disclosed in this invention comprises power take-off input end, power take-off output terminal, power take-off housing 17 and the power take-off end cap 9 that is installed on power take-off housing 17 ends, power take-off housing 17 inside are provided with for bearings mounted bearing bore 8, this power take-off housing 17 can be embedded in flywheel shell 2 and be connected with flywheel shell 2 is dismantled and assembled, and the part that power take-off housing 17 is embedded in flywheel shell 2 is provided with the oil leab that communicates with above-mentioned bearing bore 8.
motor rear-end power takeoff device provided by the present invention, because its power take-off housing 17 can be embedded in flywheel shell 2, and be connected with flywheel shell 2 is dismantled and assembled, thereby efficiently solve present motor rear-end power takeoff device dismounting hard problem, the part that simultaneously the present invention is embedded at flywheel shell 2 at power take-off housing 17 also is provided with the oil leab that communicates with bearing bore 8 in power take-off housing 17, this oil leab will communicate with the flywheel shell oil inlet hole A on flywheel shell 2 after power take-off is installed on flywheel shell 2, oil inlet hole A on flywheel casing communicates with gear inlet oil duct, thereby realize that power take-off is inner directly lubricated, compare with the mode of the lubricated power take-off internal bearings of the external oil duct of present employing, not only saved the installing space of engine interior, also reduced simultaneously cost of production.
More specifically, please also refer to Fig. 1 and Fig. 2, the partial sectional view of the motor rear-end power takeoff device that the scheme of installation of the motor rear-end power takeoff device that Fig. 1 provides for the embodiment of the present invention, Fig. 2 provide for the embodiment of the present invention.
power take-off housing 17 is embedded in flywheel shell 2, and by four bolts of cover 13, power take-off housing 17 is anchored on flywheel shell 2, thereby realize dismantled and assembled with respect to flywheel shell of power take-off, certainly can also adopt other modes to realize the dismantled and assembled of power take-off, for example take screw-thread fit the power take-off housing to be tightened in the dismantled and assembled connection that can realize too power take-off on flywheel shell, be provided with bearing bore 8 in power take-off housing 17, in bearing bore 8, bearing is installed, the outer ring of bearing is fixedly installed on the inwall of power take-off housing 17 by the mode of hot pressing, inner ring all adopts interference fit to be fixedly connected with the gear shaft of power take-off.
The motor rear-end power takeoff device that the embodiment of the present invention provides is to realize power output by the output flange 11 on the gear shaft that is installed on power take-off, this output flange is by cushion block and pass simultaneously this cushion block and output flange 11 and be tightened in bolton on the gear shaft of power take-off on the power take-off gear shaft, be provided with 6 on output flange for the mounting hole of the outputting power that is connected with transmission shaft, output flange 11 is connected by involute splines with the gear shaft of power take-off, and by bolton on the gear shaft of power take-off.
The oil leab of the motor rear-end power takeoff device that provides in the embodiment of the present invention specifically comprises:
Be opened on power take-off housing 17 and the annular oil groove B that communicates with flywheel shell oil inlet hole A;
One end communicates with above-mentioned annular oil groove B, the power take-off oil inlet hole that the other end communicates with bearing bore 8;
One end communicates with bearing bore 8, the power take-off spill port C that the other end communicates with the gear-box of motor.
After installing, flywheel shell oil inlet hole A is connected with annular oil groove B, lubricant oil can enter annular oil groove B through flywheel shell oil inlet hole A like this, entered 8 pairs of bearing lubrication of bearing bore of power take-off housing 17 inside by the power take-off oil inlet hole by annular oil groove B, unnecessary lubricant oil flows back to engine gearbox and finally enters oil sump through power take-off spill port C.
In order to prevent the oil leakage in annular oil groove B, also be provided with respectively the leakage that O RunddichtringO 6 stops lubricant oil in the present embodiment in the both sides of annular oil groove B.
because the diameter of power take-off oil inlet hole and power take-off spill port C is less, directly directly punched to the inboard by power take-off housing 17 outsides in actual production process and be not easy very much to realize, this will be easy to cause the fracture of drill bit, so convenience in order to process, power take-off oil inlet hole in the present embodiment comprises the first Oil Guide road 15 and the second Oil Guide road 14 and is arranged at intercommunicating pore on annular oil groove B, the first Oil Guide road 15 is along the axial setting of power take-off housing 17, and communicate with above-mentioned annular oil groove B by the intercommunicating pore on annular oil groove B, the second Oil Guide road 14 is along the radially setting of power take-off housing 17, and communicate with the first Oil Guide road 15 and bearing bore 8.To effectively reduce like this degree of depth of the each boring of drill bit in course of working, reduce the difficulty of processing.
in order to improve the bearing capacity of the motor rear-end power takeoff device that the embodiment of the present invention provides, bearing near the power take-off input end in the present embodiment specifically adopts roller bearing 5, bearing near the power take-off output terminal adopts deep groove ball bearing 12, for the inner ring that makes above-mentioned two bearings fixing more firm on the gear shaft of power take-off, prevent the bearing inner race axial float, installed the first gear shaft spacer 7 in the present embodiment additional between two bearings, roller bearing 5 is provided be used to the back-up ring 16 that limits its outer ring axial float near a side of power take-off input end, deep groove ball bearing 12 compresses its bearing outer ring near a side of output terminal by power take-off end cap 9, compress its bearing inner race by output flange 11.Thereby by the profile on the gear shaft of power take-off housing 17 and power take-off, and above-mentioned back-up ring 16 and power take-off end cap 9 and output flange 11 inner ring and the outer ring location in bearing bore 8 of having realized above-mentioned bearing, in order to prevent the leakage of lubricant oil, installed Sealing additional in power take-off end cap 9 and power take-off housing 17 cooperation places, as the O RunddichtringO, as shown in Figure 2.
For further optimized project, prevent that lubricant oil is from the side leakage of deep groove ball bearing 12 near output terminal, preferably be provided with the second gear shaft spacer 18 in the present embodiment between the inner ring of output flange 11 and deep groove ball bearing 12, the second gear shaft spacer 18 is set on the gear shaft of power take-off, and be provided with seal arrangement between the gear shaft of itself and motor rear-end power takeoff device, as the O RunddichtringO, be used for preventing the leakage of lubricant oil.
In order further to optimize such scheme, the present embodiment also is provided with outside framework oil seal 10 between power take-off end cap 9 and the second gear shaft spacer 18, the upper-end surface of outside framework oil seal 10 coordinates with power take-off end cap 9, seal face coordinates with the second gear shaft spacer 18, thereby can prevent that lubricant oil is by counterrotating power take-off end cap 9 and the second gear shaft spacer 18 places leakage.
Used specific case herein principle of the present invention and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present invention and core concept thereof.Should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention, can also carry out some improvement and modification to the present invention, these improvement and modification also fall in the protection domain of claim of the present invention.
Claims (10)
1. motor rear-end power takeoff device, comprise the power take-off input end, the power take-off output terminal, power take-off housing (17) and the power take-off end cap (9) that is installed on described power take-off housing (17) end, described power take-off housing (17) inside is provided with for bearings mounted bearing bore (8), it is characterized in that, described power take-off housing (17) can be embedded in flywheel shell (2) and with dismantled and assembled connection of described flywheel shell (2), the part that described power take-off housing (17) is embedded at described flywheel shell (2) is provided with the oil leab that communicates with described bearing bore (8).
2. motor rear-end power takeoff device according to claim 1, is characterized in that, described power take-off output terminal is provided with output flange (11).
3. motor rear-end power takeoff device according to claim 1, is characterized in that, described power take-off housing (17) is connected with described flywheel shell (2) bolt.
4. motor rear-end power takeoff device according to claim 1, is characterized in that, described oil leab specifically comprises:
Be opened in annular oil groove (B) on described power take-off housing (17) and that communicate with flywheel shell oil inlet hole (A);
One end communicates with described annular oil groove (B), the power take-off oil inlet hole that the other end communicates with described bearing bore (8);
One end communicates with described bearing bore (8), the power take-off spill port (C) that the other end communicates with gear-box.
5. motor rear-end power takeoff device according to claim 4, is characterized in that, also comprises the O RunddichtringO (6) that is arranged at described annular oil groove both sides.
6. motor rear-end power takeoff device according to claim 4, is characterized in that, described power take-off oil inlet hole comprises:
The first Oil Guide road (15) and the second Oil Guide road (14) and be arranged at intercommunicating pore on described annular oil groove (B), described the first Oil Guide road (15) is along the axial setting of described power take-off housing (17), described intercommunicating pore is communicated with described the first Oil Guide road (15) and described annular oil groove (B), described the second Oil Guide road (14) is along the radially setting of described power take-off housing (17), and it communicates with described the first Oil Guide road (15) and described bearing bore (8) simultaneously.
7. according to claim 1-6 described motor rear-end power takeoff devices of any one, it is characterized in that, the bearing that is arranged at close power take-off input end one side in described bearing bore (8) is roller bearing (5), and a side bearing of close power take-off output terminal is deep groove ball bearing (12).
8. motor rear-end power takeoff device according to claim 7, it is characterized in that, be provided with the first gear shaft spacer (7) for restriction bearing inner race axial float between described roller bearing (5) and deep groove ball bearing (12), described roller bearing (5) is provided be used to the back-up ring that limits its outer ring axial float (16) near a side of power take-off input end, described deep groove ball bearing (12) compresses its bearing outer ring near a side of output terminal by power take-off end cap (9), compress its bearing inner race by output flange (11).
9. motor rear-end power takeoff device according to claim 8, it is characterized in that, also comprise between the inner ring that is arranged at described output flange (11) and described deep groove ball bearing (12) and be set in the second gear shaft spacer (18) of the gear shaft of power take-off, and being provided with seal arrangement between the gear shaft of described the second gear shaft spacer (18) and power take-off.
10. motor rear-end power takeoff device according to claim 9, is characterized in that, is provided with outside framework oil seal between described power take-off end cap (9) and described the second gear shaft spacer (18).
Priority Applications (1)
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CN201210133140.7A CN103382891B (en) | 2012-05-02 | 2012-05-02 | A kind of power takeoff at rear end of engine |
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CN201210133140.7A CN103382891B (en) | 2012-05-02 | 2012-05-02 | A kind of power takeoff at rear end of engine |
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CN103382891A true CN103382891A (en) | 2013-11-06 |
CN103382891B CN103382891B (en) | 2015-11-25 |
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109611235A (en) * | 2019-01-17 | 2019-04-12 | 上海汽车集团股份有限公司 | Engine rear end sealing device |
CN110816263A (en) * | 2019-12-06 | 2020-02-21 | 安徽华菱汽车有限公司 | Vehicle, power system and power takeoff thereof |
CN113803439A (en) * | 2021-09-28 | 2021-12-17 | 重庆綦同汽车配件有限责任公司 | Front power takeoff |
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JPH04215526A (en) * | 1990-12-11 | 1992-08-06 | Toyota Autom Loom Works Ltd | Device for taking power out of flywheel with clutch |
CN201321893Y (en) * | 2008-12-25 | 2009-10-07 | 东风汽车公司 | Power take-off for rear gear chamber engine |
EP2141373A1 (en) * | 2007-05-01 | 2010-01-06 | JTEKT Corporation | Bearing device for turbocharger |
CN201443433U (en) * | 2009-07-08 | 2010-04-28 | 中国重汽集团济南动力有限公司 | Rear power takeoff device of engine |
CN102434247A (en) * | 2011-12-28 | 2012-05-02 | 中国重汽集团济南动力有限公司 | Lubricating structure of engine rear power take-off device |
CN202578903U (en) * | 2012-05-02 | 2012-12-05 | 安徽华菱汽车有限公司 | Power takeoff at rear end of engine |
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2012
- 2012-05-02 CN CN201210133140.7A patent/CN103382891B/en active Active
Patent Citations (6)
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JPH04215526A (en) * | 1990-12-11 | 1992-08-06 | Toyota Autom Loom Works Ltd | Device for taking power out of flywheel with clutch |
EP2141373A1 (en) * | 2007-05-01 | 2010-01-06 | JTEKT Corporation | Bearing device for turbocharger |
CN201321893Y (en) * | 2008-12-25 | 2009-10-07 | 东风汽车公司 | Power take-off for rear gear chamber engine |
CN201443433U (en) * | 2009-07-08 | 2010-04-28 | 中国重汽集团济南动力有限公司 | Rear power takeoff device of engine |
CN102434247A (en) * | 2011-12-28 | 2012-05-02 | 中国重汽集团济南动力有限公司 | Lubricating structure of engine rear power take-off device |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109611235A (en) * | 2019-01-17 | 2019-04-12 | 上海汽车集团股份有限公司 | Engine rear end sealing device |
CN110816263A (en) * | 2019-12-06 | 2020-02-21 | 安徽华菱汽车有限公司 | Vehicle, power system and power takeoff thereof |
CN110816263B (en) * | 2019-12-06 | 2024-04-26 | 安徽华菱汽车有限公司 | Vehicle, power system and power takeoff thereof |
CN113803439A (en) * | 2021-09-28 | 2021-12-17 | 重庆綦同汽车配件有限责任公司 | Front power takeoff |
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CN103382891B (en) | 2015-11-25 |
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Effective date of registration: 20231117 Address after: 243071 No. 359 Huxinan Road, Economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee after: Anhui Hanma Engine Co.,Ltd. Address before: 243061 Huxi South Road, Economic and Technological Development Zone, Ma'anshan City, Anhui Province Patentee before: ANHUI HUALING AUTOMOBILE Co.,Ltd. |
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