CN201420848Y - Oil-sealing type front pneumatic auxiliary gear box assembly - Google Patents
Oil-sealing type front pneumatic auxiliary gear box assembly Download PDFInfo
- Publication number
- CN201420848Y CN201420848Y CN2009201389952U CN200920138995U CN201420848Y CN 201420848 Y CN201420848 Y CN 201420848Y CN 2009201389952 U CN2009201389952 U CN 2009201389952U CN 200920138995 U CN200920138995 U CN 200920138995U CN 201420848 Y CN201420848 Y CN 201420848Y
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- gear
- steam
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- Expired - Fee Related
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- 238000007789 sealing Methods 0.000 title claims abstract description 11
- 230000005540 biological transmission Effects 0.000 claims description 25
- 230000007935 neutral effect Effects 0.000 claims description 9
- 230000008093 supporting effect Effects 0.000 claims description 6
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000009194 climbing Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Abstract
The utility model provides an oil-sealing type front pneumatic auxiliary gear box assembly, which comprises a casing body, a shifting fork, an input shaft and an output shaft. A low-gear gear and a gear shifting tooth part are sleeved on the input shaft, a fixed tooth holder of the gear shifting tooth part is fixedly connected with the input shaft into a whole, a high-gear gear on the output shaftis arranged inside the casing body, the other end of the output shaft extends out of the casing body, the shifting fork is connected with a pneumatic cylinder arranged inside a pneumatic cover, the shifting fork drives a sliding toothed sleeve to slide, internal teeth are arranged on the sliding toothed sleeve which respectively meshes with splines of the low-gear gear and the high-gear gear, andframework type oil seal is arranged at the connection position of a first main shaft and a first main shaft cover. The oil-sealing type front pneumatic auxiliary gear box assembly has the advantagesof simple and compact structure, convenient gear shifting operation and capability of avoiding erratic shifting. Further, a low gear and a high gear are utilized by employing the internal teeth of thesliding toothed sleeve to mesh with each other. By adopting the framework type oil-sealing closed structure and the design of the pneumatic cylinder, the auxiliary gear box can avoid air leakage andprevent erratic shifting phenomenon.
Description
Technical field
The utility model relates to a kind of transmission assembly of highway communication means of transportation, the preposition steam-operating auxiliary transmission of especially a kind of oil seal type of medium-duty truck assembly.
Background technique
Existing truck connects an auxiliary transmission when improving starting and grade ability on main-gear box, can be divided into preposition auxiliary transmission and rearmounted auxiliary transmission according to the mounting point of auxiliary transmission.Lorry increases to be adorned preposition auxiliary transmission and mainly protects the main-gear box assembly, reduces the speed ratio of main-gear box, and the output speed of gearbox is dwindled, and the speed of a motor vehicle reduces, and improves the climbing driving force.The function of auxiliary transmission assembly in car load is outputting power, distributes to propons and back axle after relying on the internal gear transmission system with power speed changing then by the diesel engine outputting power.
The gear changing mode of tradition gearbox is generally carrier wheel, maneuverability pattern is a rotating cam, the shortcoming of this structure is easily to produce impact, trip stop phenomenon when the shift fork handsetting gear moves axially when gear shift, structure is also comparatively complicated, the gear teeth of speed change gear, synchronizer also are easy to wearing and tearing, when automobile travels in middle and high speed, when load variation suddenly or automobile are subjected to high vibration, the easily automatic rebound neutral position of speed change lever, therefore, under, the violent situation of jolting poor in road conditions automatic trip stop taking place often, gives security presence hidden danger.
The model utility content
In view of this, the utility model provides the preposition steam-operating auxiliary transmission of a kind of oil seal type assembly, is that gear-change operation is simple, and is not easy to trip over stop by the engagement of sliding gear collar internal tooth when using the high, low speed shelves; Adopt the design of airtight structure of skeleton oil sealing and steam-operating cylinder can not leak gas, can not cause trip stop.
The technological scheme that the utility model adopted is: the preposition steam-operating auxiliary transmission of oil seal type assembly comprises housing, selector fork, one of pair and leads one, wherein
Housing is fixedlyed connected with steam-operating lid, a main shaft-cup, is provided with bootom gear, high speed gear, duplicate gear and gear shift tooth spare in it;
Secondary one is input shaft, and an end extend in the housing, is with bootom gear and gear shift tooth spare on it, and the fixedly toothholder and the input shaft of gear shift tooth spare are fixed with one;
Main one is a gear shaft, and as output shaft, the gear on it is that high speed gear is arranged in the housing, and main the other end stretches out in outside the housing, and main one upward also is provided with skeleton oil sealing with a main shaft-cup connection place;
Selector fork connects and is controlled by the steam-operating cylinder, and its shift fork end extend into housing and cooperates and drive sliding gear collar with the sliding gear collar of gear shift tooth spare and horizontally slips;
Described gear shift tooth spare comprises fixedly toothholder and sliding gear collar, be arranged between bootom gear and the high speed gear, the sliding gear collar of gear shift tooth spare is provided with internal tooth, can horizontally slip and respectively with the spline engagement of bootom gear and high speed gear, thereby realize the adjusting of bottom gear, top gear and neutral gear, above-mentioned bootom gear and high speed gear are by being arranged at the duplicate gear engagement driving of both homonymies.
Described secondary one is to be socketed in the axis hole of a main shaftgear end by needle bearing, and one of this pair is loaded on the housing by radial ball bearing supporting.
One of described master is loaded in the housing by the radial ball bearing supporting, and will lead one and housing with a main shaft-cup and fix and seal.
Described reverse shift fork is connected with the steam-operating cylinder, and it is inner that the steam-operating cylinder is arranged at the steam-operating lid, and steam-operating is covered by bolt on housing.
Described bootom gear is placed on secondary one by a needle bearing, and the duplicate gear that meshes with this bootom gear is placed on the jack shaft, and between two gears of duplicate gear a spacer is arranged.
Further, the preposition steam-operating auxiliary transmission of described oil seal type assembly has three gears: top gear, neutral gear, bottom gear.When selector fork drives internal tooth that sliding gear collar moves to sliding gear collar and meshes with the tooth on the bootom gear, secondary one drives fixing toothholder and is placed in sliding gear collar rotation on the fixing toothholder, drive the bootom gear rotation with the sliding gear collar of bootom gear engagement, rotate by the high speed gear on one of the middle duplex gear driven master, thereby output on main one, be bottom gear this moment.When the tooth in the high speed gear on selector fork drive sliding gear collar moves to the internal tooth of sliding gear collar and leads meshes, secondary one drives fixing toothholder and is placed in sliding gear collar rotation on the fixing toothholder, main rotation of sliding gear collar drive with high speed gear's engagement, thereby output on main one, be top gear this moment.Move to the neutral position when selector fork drives sliding gear collar, neither with bootom gear on the tooth engagement, also not with main one on high speed gear on the tooth engagement, be neutral gear this moment.
The preposition steam-operating auxiliary transmission of a kind of oil seal type assembly that the utility model provides, can reduce the speed ratio of main-gear box, protection main-gear box assembly, when using the high, low speed shelves is to mesh by the sliding gear collar internal tooth, simple and compact for structure, appearance looks elegant, be convenient to shift control, be not easy to cause the trip stop phenomenon; Auxiliary transmission adopts airtight structure of skeleton oil sealing and the design of steam-operating cylinder can not leak gas, and can not cause auxiliary transmission trip stop phenomenon.
Description of drawings
Fig. 1 is the side view of the preposition steam-operating auxiliary transmission of the utility model oil seal type assembly;
Fig. 2 is the preposition steam-operating auxiliary transmission of a utility model oil seal type assembly sectional drawing.
Embodiment
Existing accompanying drawings and embodiment further specify the utility model.
Embodiment
With reference to Fig. 1, shown in Figure 2, the preposition steam-operating auxiliary transmission of the oil seal type that the utility model provides assembly, comprise steam-operating cylinder 1, steam-operating lid 2, selector fork 3, secondary one 4, main one 5, bootom gear 6, fixedly toothholder 7, sliding gear collar 8, jack shaft 9, duplicate gear 10, housing 11, lead a shaft-cup 12, skeleton oil sealing 16.Described secondary one 4 is input shafts, be loaded on the housing 11 by radial ball bearing 131 supportings, be positioned at housing 11 on secondary one 4 bootom gear 6 is housed successively, fixedly toothholder 7, and be socketed on by needle bearing 142 in the axis hole of main one 5 gear end, bootom gear 6 is loaded on secondary one 4 by needle bearing 141, fixedly be with sliding gear collar 8 on the toothholder 7, fork slot on the sliding gear collar 8 links to each other with selector fork 3, reverse shift fork 3 is connected and is controlled by steam-operating cylinder 1 with steam-operating cylinder 1, reverse shift fork 3 drives sliding gear collar 8 and horizontally slips, the internal tooth of sliding gear collar 8 respectively with bootom gear 6, the spline combination of the high speed gear 51 on main one 5 can be carried out top gear, neutral gear, the adjusting of bottom gear; Main one 5 be output shaft, and main one 5 is loaded in the housing 11 by radial ball bearing 132, needle bearing 142 supportings, also is provided with skeleton oil sealing 16 with main one 5 connecting parts in the main shaft-cup 12, fixing and seal with housing 11; Duplicate gear 10 connects with jack shaft 9 by needle bearing 143, and meshes with bootom gear 6, high speed gear 51 respectively, between two gears of duplicate gear 10 spacer 15 is arranged; Steam-operating cylinder 1 is arranged in the steam-operating lid 2, and steam-operating lid 2 is by on the bolt housing 11, and steam-operating cylinder (1) is provided with into/gas outlet valve 10.
Further, the preposition steam-operating auxiliary transmission of described oil seal type assembly has three gears: top gear, neutral gear, bottom gear, and wherein, the top gear speed ratio is 1: 1, the bottom gear speed ratio is 1: 2.05.When selector fork 3 drive sliding gear collars 8 move on the bootom gear 6, spline engagement on the internal tooth of sliding gear collar 8 and the bootom gear 6, secondary one 4 drives fixedly toothholder 7 and sliding gear collar 8 rotations, drive bootom gear 6 rotations with the sliding gear collar 8 of bootom gear 6 engagements, the high speed gear 51 that drives on main one 5 by duplicate gear 10 rotates, thereby output on main one 5, be bottom gear this moment.When selector fork 3 drive sliding gear collars 8 move in the high speed gear 51, the internal tooth of sliding gear collar 8 with main one 5 on high speed gear 51 on spline engagement the time, secondary one 4 drives fixedly toothholder 7 and sliding gear collar 8 rotations, main one 5 rotation of sliding gear collar 8 drives with high speed gear's 51 engagements, thereby output on main one 5, be top gear this moment.Move to when fixedly toothholder 7 meshes fully when selector fork 3 drives sliding gear collars 8, the internal tooth of sliding gear collar 8 neither with bootom gear 6 on the tooth engagement, also not with main one 5 on high speed gear 51 on the tooth engagement, be neutral gear this moment.
Centre distance of the present utility model is 89.35mm, and maximum input torque is 360N.M, and 2800r/min is changeed in maximum input, and maneuverability pattern is direct, and the top gear speed ratio is 1: 1, and the bottom gear speed ratio is 1: 2.05.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all within spirit of the present utility model and principle, any modification of being made, be equal to replacement, improvement etc., all should be included within the scope of the utility model protection.
Claims (5)
1. the preposition steam-operating auxiliary transmission of oil seal type assembly comprises housing (11), selector fork (3), secondary one (4) and main one (5), it is characterized in that:
Housing (11) is fixedlyed connected with steam-operating lid (2), a main shaft-cup (12), is provided with bootom gear (6), high speed gear (51), duplicate gear (10) and gear shift tooth spare in it;
Secondary one (4) are input shaft, and an end extend in the housing (11), is with bootom gear (6) and gear shift tooth spare on it, and the fixedly toothholder (7) of gear shift tooth spare is fixed with one with input shaft;
Main one (5) are an output gear shaft, gear on it is that high speed gear (51) is arranged in the housing (11), main (5) the other end stretches out in outside the housing (11), and main one (5) are gone up with a main shaft-cup (12) connection place and also are provided with skeleton oil sealing (16);
Selector fork (3) connects and is controlled by steam-operating cylinder (1), and its shift fork end extend into housing (11) and cooperates and drive sliding gear collar (8) with the sliding gear collar (8) of gear shift tooth spare and horizontally slips;
Described gear shift tooth spare comprises fixedly toothholder (7) and sliding gear collar (8), be arranged between bootom gear (6) and the high speed gear (51), the sliding gear collar of gear shift tooth spare (8) can horizontally slip and respectively with the spline engagement of bootom gear (6) and high speed gear (51), thereby realize the adjusting of bottom gear, top gear and neutral gear, above-mentioned bootom gear (6) and high speed gear (51) can be by duplicate gear (10) engagement driving that is arranged at both homonymies.
2. the preposition steam-operating auxiliary transmission of oil seal type according to claim 1 assembly, it is characterized in that, described secondary one (4) are to be socketed in the axis hole of main (5) gear end by needle bearing (142), and this pair one (4) is loaded on the housing (11) by a radial ball bearing (131) supporting.
3. the preposition steam-operating auxiliary transmission of oil seal type according to claim 1 assembly, it is characterized in that, described master one (5) is loaded in the housing (11) by radial ball bearing (132) supporting, and will lead one (5) fixing and sealing with housing (11) with a main shaft-cup (12).
4. the preposition steam-operating auxiliary transmission of oil seal type according to claim 1 assembly, it is characterized in that, described reverse shift fork (3) is connected with steam-operating cylinder (1), steam-operating cylinder (1) is arranged at steam-operating lid (2) inside, on housing (11), steam-operating cylinder (1) is provided with into/gas outlet valve steam-operating lid (2) by bolt.
5. the preposition steam-operating auxiliary transmission of oil seal type according to claim 1 assembly, it is characterized in that, described bootom gear (6) is placed on secondary one (4) by a needle bearing (141), be placed on the jack shaft (9) with the duplicate gear (10) of this bootom gear (6) engagement, and between two gears of duplicate gear (10) spacer (15) arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201389952U CN201420848Y (en) | 2009-06-23 | 2009-06-23 | Oil-sealing type front pneumatic auxiliary gear box assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201389952U CN201420848Y (en) | 2009-06-23 | 2009-06-23 | Oil-sealing type front pneumatic auxiliary gear box assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201420848Y true CN201420848Y (en) | 2010-03-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201389952U Expired - Fee Related CN201420848Y (en) | 2009-06-23 | 2009-06-23 | Oil-sealing type front pneumatic auxiliary gear box assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201420848Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851135A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | High-power double-speed-ratio gearbox |
| CN107842564A (en) * | 2017-09-29 | 2018-03-27 | 浙江鑫可精密机械有限公司 | The gear shift device of speed changer |
-
2009
- 2009-06-23 CN CN2009201389952U patent/CN201420848Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103851135A (en) * | 2014-03-11 | 2014-06-11 | 江苏赫夫特齿轮制造有限公司 | High-power double-speed-ratio gearbox |
| CN107842564A (en) * | 2017-09-29 | 2018-03-27 | 浙江鑫可精密机械有限公司 | The gear shift device of speed changer |
| CN107842564B (en) * | 2017-09-29 | 2024-06-04 | 浙江鑫可传动科技有限公司 | Speed changing and shifting device of speed changer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Fujian Hualong Jinjiang Machinery Fittings Co., Ltd. Assignor: Lin Chunwei Contract record no.: 2010350000116 Denomination of utility model: Oil-sealing type front pneumatic auxiliary gear box assembly Granted publication date: 20100310 License type: Exclusive License Record date: 20100613 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100310 Termination date: 20120623 |