CN203856571U - Auxiliary power output device of non-road diesel engine - Google Patents
Auxiliary power output device of non-road diesel engine Download PDFInfo
- Publication number
- CN203856571U CN203856571U CN201420260890.5U CN201420260890U CN203856571U CN 203856571 U CN203856571 U CN 203856571U CN 201420260890 U CN201420260890 U CN 201420260890U CN 203856571 U CN203856571 U CN 203856571U
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- 230000000694 effects Effects 0.000 claims description 4
- 239000000295 fuel oil Substances 0.000 claims description 3
- 238000002347 injection Methods 0.000 abstract description 3
- 239000007924 injection Substances 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 abstract 2
- 239000003921 oil Substances 0.000 description 16
- 238000005096 rolling process Methods 0.000 description 6
- 239000010687 lubricating oil Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000314 lubricant Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000013475 authorization Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007306 functionalization reaction Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
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Abstract
The utility model provides an improved auxiliary power output device of a non-road diesel engine. The improved auxiliary power output device comprises a gear chamber. A timing gear, an idle gear, a fuel injection pump driving gear, a camshaft driving gear and an auxiliary power output gear are accommodated in the gear chamber, the idle gear is meshed with the timing gear, the fuel injection pump driving gear and the camshaft driving gear are respectively meshed with the idle gear, and the auxiliary power output gear is meshed with the camshaft driving gear. A power output shaft is integrally arranged on the auxiliary power output gear, and a shaft connecting structure which is matched with a driven machine is arranged on the power output shaft.
Description
Technical field
The utility model relates to diesel engine used not on road technology, especially its auxiliary power export structure.
Background technique
Auxiliary power is exported in other document also referred to as PTO device, writing a Chinese character in simplified form of power take off, the auxiliary power output unit of diesel engine, refer to other port power outputs of the output of non-bent axle, be generally used for the interface of oil hydraulic pump and part rotating shaft output, it is generally arranged in the front end and back end of diesel engine, for the power taking demand such as manipulation control hydraulic power and electric power of each follower, meets mechanical operation comfort and the flexibility of various uses.
Because the various agricultural fishes that on market, development is released are herded miniaturization, the microminiaturization by machinery and engineering machinery, the integrated and functionalization of diesel engine used not on road is proposed to requirements at the higher level.Middle low power non-road (general) high-speed diesel engine of existing 18～65 kilowatts generally requires one to three auxiliary power output interface.For reaching such auxiliary power output object, the diesel engine of technology generally uses special carrier gear transmission now, torsional moment of diesel engine and rotating speed are taken out from crankshaft timing gear, then be delivered to power output gear (being the Chinese patent of CN2842082Y and CN201943816U referring to notice of authorization number).In addition, the two ends of prior art medium power output gear are provided with block bearing, by its usage requirement, suitable bearing axial clearance need to be set, the adequate service life of guarantee bearing, and prior art is provided with bearing plate parts and controls the axial clearance of this bearing (Chinese patent that is CN2842082Y referring to notice of authorization number).
The problem that above-mentioned prior art exists: 1, need special carrier gear and supporting structure thereof, can cause the remarkable increase of cost, and make the housing for timing gear design of diesel engine too complicated, increase the size of gear chamber, thereby may affect the layout of driven facility.2, the block bearing in auxiliary power output unit, installation, the debug process of controlling its bearing axial clearance are comparatively complicated, seriously rely on operator's skills involved in the labour and the quality control of Pin Kong department management, and these have all increased manufacture and administration cost.
Model utility content
In order to overcome the deficiency of above-mentioned existing auxiliary power output unit, the utility model provides a kind of improved diesel engine used not on road auxiliary power output unit, simplify the structure, improved complete machine level of integration, dwindle gear chamber size and made its middle (center) bearing be easy to Installation and Debugging.
Diesel engine used not on road auxiliary power output unit of the present utility model, comprise the gear chamber that the gear chamber cover on it forms by body and buckle closure, in this gear chamber, accommodate: the idle gear that is connected in the timing gear on bent axle and is engaged with, this idle gear is supported by the idle gear axle being fixedly installed on body rotatably by a lining; The fuel oil injectionpump actuation gear and the camshaft drive gear that engage respectively with idle gear; The auxiliary power output gear engaging with camshaft drive gear.Its technological points is: on this auxiliary power output gear, be wholely set dynamic output shaft, this pto＝power take-off is bearing in auxiliary power output gear on body and gear chamber cover by pair of bearings; Meanwhile, on this pto＝power take-off, be provided with the Axile connection structure suitable with driven facility.Compared with prior art, the utility model has been cancelled traditional carrier gear member, has simplified drive path, has improved transmission efficiency; Simplify structure simultaneously, dwindled gear chamber size, improved complete machine level of integration.
Further, Axile connection structure is the inner spline housings that arrange in pto＝power take-off two ends.Using the interior spline housing of establishing as Axile connection structure, can make between driven facility and pto＝power take-off be connected more reliable, firmly.
Further again on the basis of aforementioned techniques, each gear is helical gear system, and bearing is tapered roller bearing; In the outside of a side bearing contrary with the pto＝power take-off axial force being subject in service, be provided with bearing clearance positioning device; This positioning device comprises inner shield ring, elastic element, outer back-up ring and cover plate from inside to outside successively, cover plate is bolted, this elastic element is set under the effect of cover plate and outer back-up ring, makes inner shield ring be subject to setting the axial force towards the indoor direction of gear chamber of size.So design, can directly eliminate the bug check in bearing installation process and ensure that its axial clearance remains on setting numerical value, and simple installation is easily gone, and can effectively enhance productivity, reduce installation, administration cost; Improve the uniformity of rolling bearing rolling element bearing load simultaneously, strengthen its working life.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model diesel engine used not on road auxiliary power output unit.
Fig. 2 is the partial structurtes sectional view (amplification) of Fig. 1 gear chamber.
Embodiment
Below in conjunction with accompanying drawing and in conjunction with the specific embodiment providing, the utility model is further illustrated.
" interior ", " outward " that in this specification, mention are inside and outside as benchmark taking Fig. 2 middle gear chamber; The 'fornt', 'back' of mentioning, is taking Fig. 2 middle gear chamber cap one side as front, after body one side is; Mention " on ", D score, " left side ", " right side ", be taking Fig. 1 as benchmark.
As shown in Figure 1 and Figure 2, diesel engine used not on road auxiliary power output unit of the present utility model, is accommodated in gear chamber 1, and this gear chamber 1 is formed at body 11 by gear chamber cover 12 buckle closures.In this gear chamber 1, timing gear 6 are installed on the little head end of bent axle (not shown) and are positioned at the bottom of the axis of gear chamber 1, engage with the idle gear 3 of its top setting to the left, this idle gear 3 is supported by the idle gear axle 31 being fixedly installed on body 11 by bolt (not marking in figure, lower same) rotatably by a lining 36.The idle gear 3 left sides Diesel fuel-injection pumps actuation gear 2 that is provided with slightly on the upper side engages with idle gear 3, is provided with diesel engine intake and exhaust cam axle actuation gear 4 and engages with idle gear 3 in its right avertence.The camshaft holder hole (in figure do not mark) of one end of intake and exhaust cam axle 7 on body 11 stretched out and located by catch 71 in gear chamber 1, is arranged on intake and exhaust cam axle 7 and by flat key 72 and locates to camshaft drive gear 4 interference.Be provided with auxiliary power output gear 5 and be engaged with in camshaft drive gear 4 bottom rights.
On auxiliary power output gear 5, be wholely set dynamic output shaft 51, this pto＝power take-off 51 is bearing in auxiliary power output gear 5 on body 11 and gear chamber cover 12 by pair of bearings 52.Meanwhile, on this pto＝power take-off 51, be provided with the Axile connection structure 58 suitable with driven facility (as oil hydraulic pump, not shown).In the present embodiment, this Axile connection structure 58 is the inner spline housing arranging in pto＝power take-off 51 two ends (can be also spline or other Axile connection structures in pto＝power take-off 51 two ends outer installment certainly).With aforementioned spline housing accordingly, the axle of driven facility is provided with adaptive spline, can be optionally be connected with Axile connection structure 58 and install fixing from front end or the rear end of gear chamber 1.In the present embodiment, driven facility are designed to be arranged on the rear end of gear chamber 1, thereby have below cover plate 57(and address therein) on the hole of passing through for the axle of driven facility is not set.
In the present embodiment, timing gear 6, fuel oil injectionpump actuation gear 2, camshaft drive gear 4 are left-handed design, idle gear 3 and auxiliary power output gear 5 are right-hand design, all train of gearings all adopt helical gear system, thereby auxiliary power output gear 5 and pto＝power take-off 51 thereof can be subject to the axial force f towards gear chamber rear end, for overcoming the interference of this axial force f to the normal work of driven device, in the present embodiment, above-mentioned pair of bearings 52 is screened as tapered roller bearing is with balancing axial thrust f, so that driven device receives pure moment of torsion.
Above-mentioned a pair of tapered roller bearing 52 is installed in corresponding mounting hole on body 11 and gear chamber cover 12 (not marking in figure, lower same), and its inner ring positions near the shaft shoulder 53 of gear front and rear end to be located on pto＝power take-off 51.The outer ring that is installed on the tapered roller bearing 52 on body 11 is positioned by the mounting hole on body 11, and being installed on the tapered roller bearing (being positioned at a side bearing contrary with the pto＝power take-off 51 axial force f being subject in service) 52 on gear chamber cover 12, its location, outer ring arranges specially a bearing clearance positioning device 50 and carries out.
As shown in Figure 2, this bearing clearance positioning device 50 is along the arranged outside that is installed on the tapered roller bearing (being positioned at a side bearing contrary with the pto＝power take-off 51 axial force f being subject in service) 52 on gear chamber cover 12, comprise successively from inside to outside inner shield ring 54, elastic element 55, outer back-up ring 56 and cover plate 57, this positioning device 50 is pushed down outer back-up ring 56 and is passed through elastic element 55 by cover plate 57, inner shield ring 54(inner shield ring 54 directly contacts with the outer ring of this side tapered roller bearing 52) by auxiliary power output gear 5 with this is to tapered roller bearing 52 axially locating, cover plate 57 is bolted on gear chamber cover 12.This elastic element 55 is set under the effect of cover plate 57 and outer back-up ring 56, makes inner shield ring 54 be subject to setting the axial force towards gear chamber 1 indoor direction of size.Because the amount of deformation of elastic element 55 can provide circumference pretightening force setting, more accurate to tapered roller bearing 52, can eliminate inner ring, the rolling element of tapered roller bearing 52, the gap of outer ring, make in transmitting torque process, the all rollers bearing load of rolling element is even, reduce the circulation of rolling element loading direction, the life-span of improving rolling element and Internal and external cycle with this; And this positioning device is without carrying out special debugging, assembling simple and fast, safeguards and changes easily.
Next the lubricating structure of the utility model auxiliary power output unit is described.
In auxiliary power output unit of the present utility model, for supporting the idle gear axle 31 of idle gear 3, along its near body 11 1 side Axis Extensions be provided with locating stud 35, on body 11, be provided with and pin-and-holes 37 this locating stud 35 adaptations, that Length Ratio locating stud 35 is long.On body 11, be provided with a body lubricating oil duct 33, this body lubricating oil duct 33 communicates with the lower portion near pin-and-hole 37; Meanwhile, run through aforementioned locating stud 35 ground and axially and be radially formed with central oil passage 34 along idle gear axle 31, this central oil passage 34 is at least radially provided with at least one opening (in figure not mark) in idle gear axle 31.Like this, by pin-and-hole 37, central oil passage 34 is connected with body lubricating oil duct 33, will enter central oil passage 34 through pin-and-hole 37 switchings from the lubricant oil of body lubricating oil duct 33.
In the present embodiment, central oil passage 34 has three openings in idle gear axle 31, i.e. a pair of (symmetry) opening radially and an opening vertically.Certainly, such opening can be also one of other several forms: i.e. a radial opening, or a pair of radially (symmetry) opening, or axial two openings (those of ordinary skill in the art can be easy to understand, therefore not shown) radially.
Lining 36 is installed to interference on idle gear 3, and idle gear 3 is arranged on rotatably in idle gear axle 31 and by catch 32 and is carried out axially locating by lining 36.Further, with aforementioned central oil passage 34 on radial opening accordingly, be provided with endless oil groove (in figure not mark) on one of them in lining 36 inner sides or in the outside of idle gear axle 31.In the present embodiment, endless oil groove is arranged on the inner side of the lining 36 corresponding with a pair of radially (symmetry) opening.
Thus, from the lubricant oil of body, to enter pin-and-hole 37 bottoms by body lubricating oil duct 33, and then by the central oil passage 34 of idle gear axle 31 interior settings, from the present embodiment, a pair of radially (symmetry) outlet is along idle gear 3(and lining 36 thereof and through endless oil groove) and idle gear axle 31 between fitting surface, idle gear 3 and catch 32 between fitting surface lubricate and flow out to the front and rear end (being mainly front-end face) of idle gear 3; Meanwhile, the gap between also can Axial-running Out opening's edge idle gear axle 31 and catch 32 from the present embodiment and the fitting surface between idle gear 3 and catch 32 flow out to the front and rear end (being mainly front-end face) of idle gear 3.Due to the exterior edge face of the recessed gear of (forward and backward) end face of idle gear 3, the lubricant oil that flows out to idle gear 3 front and rear ends (being mainly front-end face) by under the High Rotation Speed effect at idle gear 3 at the interior formation mist of oil of gear chamber 1, thereby other gears and corresponding sports parts in lubricated, cooling gear chamber 1.
Finally explanation is, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model, such as, outer back-up ring and cover plate are made as to one, only otherwise depart from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. a diesel engine used not on road auxiliary power output unit, comprise the gear chamber (1) that the gear chamber cover (12) on it forms by body (11) and buckle closure, in this gear chamber (1), accommodate: the idle gear (3) that is connected in the timing gear (6) on bent axle and is engaged with, this idle gear (3) is supported by the idle gear axle (31) being fixedly installed on described body (11) rotatably by a lining (36); The fuel oil injectionpump actuation gear (2) engaging respectively with described idle gear (3) and camshaft drive gear (4); The auxiliary power output gear (5) engaging with described camshaft drive gear (4), is characterized in that:
On this auxiliary power output gear (5), be wholely set dynamic output shaft (51); This pto＝power take-off (51) is bearing in described auxiliary power output gear (5) on body (11) and gear chamber cover (12) by pair of bearings (52); On described pto＝power take-off (51), be provided with the Axile connection structure suitable with driven facility (58).
2. auxiliary power output unit according to claim 1, is characterized in that:
Described Axile connection structure (58) is the inner spline housings that arrange in described pto＝power take-off (51) two ends.
3. according to the auxiliary power output unit described in claim 1 or 2 any one, it is characterized in that:
Described each gear is helical gear system, and bearing (52) is tapered roller bearing; In the outside of a side bearing (52) contrary with this pto＝power take-off (51) axial force being subject in service, be provided with bearing clearance positioning device (50); This positioning device (50) comprises inner shield ring (54), elastic element (55), outer back-up ring (56) and cover plate (57) from inside to outside successively, described cover plate (57) is bolted, this elastic element (55) is set under the effect of cover plate (57) and outer back-up ring (56), makes described inner shield ring (54) be subject to setting the axial force towards the indoor direction of described gear chamber (1) of size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260890.5U CN203856571U (en) | 2014-05-21 | 2014-05-21 | Auxiliary power output device of non-road diesel engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420260890.5U CN203856571U (en) | 2014-05-21 | 2014-05-21 | Auxiliary power output device of non-road diesel engine |
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| Publication Number | Publication Date |
|---|---|
| CN203856571U true CN203856571U (en) | 2014-10-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420260890.5U Expired - Lifetime CN203856571U (en) | 2014-05-21 | 2014-05-21 | Auxiliary power output device of non-road diesel engine |
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| CN (1) | CN203856571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296736A (en) * | 2018-11-29 | 2019-02-01 | 汽解放汽车有限公司 | Engine PTO output interface structure |
-
2014
- 2014-05-21 CN CN201420260890.5U patent/CN203856571U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109296736A (en) * | 2018-11-29 | 2019-02-01 | 汽解放汽车有限公司 | Engine PTO output interface structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20151029 Address after: 401135 Chongqing Yubei District City Longxing Zhen Ying Long Road No. 19 Patentee after: YUCHAI RUNWEI ENGINE Co.,Ltd. Address before: 402247 Chongqing Jiulongpo District Jiangjin Shuangfu Industrial Park B District Patentee before: Chongqing Rato Power Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20191115 Address after: 402247 workshop area 1, building 1, Chongqing Runtong Power Co., Ltd., Shuangfu New District, Shuangfu street, Jiangjin District, Chongqing Patentee after: Chongqing Yuchai runwei Industrial Technology Research Institute Co.,Ltd. Address before: 401135 Chongqing Yubei District City Longxing Zhen Ying Long Road No. 19 Patentee before: YUCHAI RUNWEI ENGINE Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141001 |