CN203363022U - Small-sized tractor gearbox - Google Patents
Small-sized tractor gearbox Download PDFInfo
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- CN203363022U CN203363022U CN 201320337433 CN201320337433U CN203363022U CN 203363022 U CN203363022 U CN 203363022U CN 201320337433 CN201320337433 CN 201320337433 CN 201320337433 U CN201320337433 U CN 201320337433U CN 203363022 U CN203363022 U CN 203363022U
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- gearbox
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Abstract
The utility model relates to the field of agricultural machinery manufacturing and refitting, in particular to a small-sized tractor gearbox which is formed in a manner that an auxiliary gearbox is added on an existing gearbox and a main variable-speed shaft (IX shaft) is arranged in the auxiliary gearbox. After the variable speed is controlled by a shifting fork, on one hand, power is transmitted back to each transmission gear of an original front drive through a carrier gear and a front drive clutch gear, and on the other hand, the power is transmitted to each gear and each shaft of a rear drive through a rear drive clutch gear. The shifting fork controls on-off of the front drive clutch gear and the rear drive clutch gear, enables the front drive and the rear drive of a small-sized tractor to be fully and synchronously output, and can freely control the single output of the front drive and the rear drive according to needs. The small-sized tractor gearbox can be flexibly matched with agricultural implements with different purposes, and is convenient to use; a large number of parts are communicated with the existing gearbox, so design cost and manufacturing cost are reduced to the maximum degree, and the small-sized tractor gearbox is convenient to use and maintain. The small-sized tractor gearbox is suitable for refitting for an industrial and agriculatural-12 type small-sized tractor.
Description
Technical field
The utility model relates to manufacture of agricultural machinery, repacking field, specifically a kind of small tractor gearbox.
Background technique
China rural area is widely used workers and peasants-12 microtractor technology maturation, and using scope is wide.For adapting to the different usage mode in rural area, many improved products have appearred.For example, by after the speed-changing gear box transformation, after increasing, the facility axle of output, can be various agricultural machinery and implement power be provided.Also can be for steering-wheel type articulated steering tractor.But common this speed-changing gear box does not realize that the output of forerunner and rear-guard is synchronous at all gears.In order to reach forerunner and rear-guard output at all gear Complete Synchronizations, often need to redesign gearbox, very large with original gearbox designs difference, component and gearbox accessory versatility are not high, and manufacture or repacking cost are high.
The Chinese patent that publication number is 202349118U discloses a kind of microtractor speed-changing gear box.This microtractor speed-changing gear box, by being socketed in the 3rd power output gear on the second axle, outputs to the power after speed change on main variable speed shaft on facility output shaft (rear-guard output).Having reached forerunner output and rear-guard exports and controlled by gear.But this microtractor speed-changing gear box can't be realized independent front-wheel drive and rear wheel drive.
Chinese patent 201120001615.8 discloses the transmission device of the single gearbox tractor of a kind of bow steering type.Synchronously driven forerunner's change gear and rear driving wheel change gear by shift fork are housed on the pto＝power take-off of its speed-changing gear box.These two change gear are under the driving that drives the switching driving lever, on pto＝power take-off, vibration has two positions, one of them position is exactly these two change gear rear-guard transmission shaft transferring power with the driving rear drive sprocket to the forerunner's output shaft that drives front driving wheel simultaneously, and another position is only back kick moving axis transferring power of these two change gear.This device has front and back wheels synchronous driving and two kinds of walking modes of trailing wheel fast driving at a slow speed separately simultaneously, to take into account, needs two kinds of needs that tractive force is large, grade ability is strong and speed is fast, conveying efficiency is high.Its deficiency is: need be to existing gearbox redesign, and manufacturing mechanism is changed larger, needs investment larger; Former supporting agricultural machinery and implement can't use, and client's purchase cost is high, and can not realize that independent forerunner drives.
The file that publication number is CN 103016649 A discloses a kind of three synchronous output gear gearboxes.It has increased a synchronous output gear at the II axle of traditional workers and peasants-12 tractor gear gearbox, increase a VIII axle simultaneously, the VIII axle is provided with change gear and rear output gear, has realized that front double-shaft power is exported separately, front twin shaft and rear output gear and the output of gear synchronous dynamic and front twin shaft and rear output gear do not export this three kinds of power way of outputs with the gear synchronous dynamic.The deficiency that this scheme exists: can not realize the independent rear way of output, can not adapt to the demand as the power of various farm implements.
Summary of the invention
For above-mentioned the deficiencies in the prior art, existing microtractor being repacked into to the front and back that both have synchronous shift drives, when the difference driven before and after realizing is again exported separately, the speed change gear complex structure, component universality is poor, the problem that recondition expense is high, the utility model proposes a scheme.
Specifically: small tractor gearbox, comprise main-gear box (5), include I ~ VIII axle in described main-gear box, described I axle is provided with high speed driving gear (11) and low-speed active gear (12), described II axle is provided with reverse idler gear (21), described III axle is provided with reverse gear (31), I shelves driving gear (32), carrier gear (33), III shelves driving gear (34) and II shelves driving gear (35), establish forerunner's clutch gear (41) on described IV axle, described V axle is provided with forerunner's intermediate gear (51), establish differential gear set (61 on described VI axle, 62, 63), establish respectively reduction gear (71 on two described VII axles, 72), establish respectively actuation gear (81) on two described VIII axles, it is characterized in that:
Also be connected with an auxiliary transmission (6) on described main-gear box (5), be provided with IX ~ X III axle in described auxiliary transmission, described IX axle is provided with I-reverse gear driven gear (91), central driver gear (92) and II-III shelves driven gear (93), described X axle is provided with rear-guard intermediate gear (101), described XI axle is provided with rear-guard clutch gear (111) and rear-guard driving gear (112), described XII axle is provided with rear-guard driven gear (122) and drive bevel gear (121), and described X III axle is provided with by dynamic bevel gear (131);
Described central driver gear (92) meshes with described carrier gear (33) and described rear-guard intermediate gear (101) respectively;
Described carrier gear (33) is socketed on described III axle.
Further, in described main-gear box (5), be provided with for switching at a high speed and the shift fork A1 of bottom gear and the shift fork A2 that controls forerunner's clutch gear (41) clutch; Be provided with the shift fork A3 and the shift fork A4 that controls II-III shelves driven gears (93) and the shift fork A5 that controls described rear-guard clutch gear (111) clutch that control described I-reverse gear driven gear (91) in described auxiliary transmission (6).
Further, described carrier gear (33) comprises hub splines, the bearing be embedded on gear mass.
Better for component universality, described IX axle equals the distance of described IV to the III axle to the distance of III axle.
The utility model is a kind of repacking to existing small tractor gearbox (workers and peasants-12 type).Main variable speed shaft is changed and is located on auxiliary transmission, and the IV axle of main-gear box (being original main variable speed shaft) is only established a front clutch gear (41).Power, by the carrier gear (33) on the III axle, passes back to the power after shift on forerunner's differential axle (VI axle).
The present invention can realize that the front and back of microtractor drive Complete Synchronization output, and the independent output driven before and after can freely controlling as required, can mate the agricultural machinery and implement of different purposes flexibly, easy to use; Most component are all general with former gearbox, reduced the Design and manufacture expense, also facilitated and used and keep in repair.
the accompanying drawing explanation
?fig. 1 is the utility model sterogram.
Fig. 2 is main-gear box transmission principle figure of the present utility model.
Fig. 3 is auxiliary transmission transmission principle figure of the present utility model.
Fig. 4 is the utility model forerunner transmission principle figure.
Fig. 5 is the utility model rear-guard transmission principle figure.
In figure: clutch 1, transmission case 2, driving lever arm 3, driving lever arm 4, main-gear box 5, auxiliary transmission 6, driving lever arm 7, master lever 8, high speed driving gear 11, low-speed active gear 12, reverse idler gear 21, reverse gear 31, I shelves driving gear 32, carrier gear 33, III shelves driving gear 34, II shelves driving gear 35, forerunner's clutch gear 41, forerunner's intermediate gear 51, differential gear set (61, 62, 63), reduction gear 71(72), actuation gear 81, I-reverse gear driven gear 91, central driver gear 92, II-III shelves driven gear 93, rear-guard intermediate gear 101, rear-guard clutch gear 111, rear-guard driving gear 112, drive bevel gear 121, driven gear 122, by dynamic bevel gear 131, axle I～X III, shift fork A1～A5.
Embodiment
As Fig. 1, shown in 2, small tractor gearbox, comprise main-gear box 5, include I ~ VIII axle in main-gear box, the I axle is provided with high speed driving gear 11 and low-speed active gear 12, the II axle is provided with reverse idler gear 21, the III axle is provided with reverse gear 31, I shelves driving gear 32, carrier gear 33, III shelves driving gear 34 and II shelves driving gear 35, establish forerunner's clutch gear 41 on the IV axle, the V axle is provided with forerunner's intermediate gear 51, establish differential gear set (61 on the VI axle, 62, 63), establish respectively reduction gear 71(72 on two VII axles), establish respectively actuation gear 81 on two VIII axles.
Also be connected with an auxiliary transmission 6 on main-gear box 5, be provided with IX ~ X III axle in described auxiliary transmission, the IX axle is provided with I-reverse gear driven gear 91, central driver gear 92 and II-III shelves driven gear 93, the X axle is provided with rear-guard intermediate gear 101, the XI axle is provided with rear-guard clutch gear 111 and rear-guard driving gear 112, the XII axle is provided with rear-guard driven gear 122 and drive bevel gear 121, and X III axle is provided with by dynamic bevel gear 131; As shown in Figure 3.
In main-gear box 5, be provided with for switching at a high speed and the shift fork A1 of bottom gear and the shift fork A2 that controls 41 clutches of forerunner's clutch gear.Be provided with the shift fork A3 that controls I-reverse gear driven gear 91 and control the shift fork A4 of II-III shelves driven gear 93 and the shift fork A5 that controls described rear-guard clutch gear 111 clutches in auxiliary transmission 6.
The IX axle equals the distance of IV to the III axle to the distance of III axle.
Process is controlled in transmission of the present utility model:
As shown in Fig. 1 ~ 5, diesel engine, by clutch 1, passes through on the transmission case 2 I axle interior to main-gear box 5 transmission of power.Stir shift fork A1 by handling driving lever arm 4, control III gear driving gear 34 engagements on I gear driving gear 32 engagements on high gear 11 and III axle or low speed gear 12 and III axle, the power on the I axle by meshed gears transmission of power to the III axle.
Handle shift fork A3 or shift fork A4 by handling master lever 8.I on the shift fork A3 control IX axle-driven gear 91 that reverses gear meshes (during the I shelves) with reverse idler gear 21 engagements (during reverse gear) or with I shelves driving gear 32, or in neutral position.II on shift fork A4 control IX axle-III shelves driven gear 93 meshes (during the III shelves) with 35 engagements (during the II shelves) of II shelves driving gear or with III shelves driving gear 34, or in neutral position.
Power is after the III axle passes to the central driver gear 92 the IX axle, and minute two-way is exported:
One tunnel is front wheel driving transmission (Fig. 4): by carrier gear 33---forerunner clutch gear 41---, from driving, intermediate gear 51---differential gear set (62,61 combinations and 62,63 combinations)---reduction gear 71 and 72---actuation gear 81---transmission of power are to VIII axle (being front wheel driving shaft).Handle shift fork A2 by driving lever arm 3, control the engagement of forerunner's clutch gear 41 on the IV axle and carrier gear 33 or separate, switch on or off the power to front transfer.
Another road is rear driving transmission (Fig. 5): by rear-guard intermediate gear 101---rear-guard clutch gear 111---XI axle---rear-guard driving gear 112---driven gear 122---XII axle---drive bevel gear 121---is passed on X III axle (being rear output shaft) by mantle tooth 131---.Handle shift fork A5 by driving lever arm 7, control the engagement of rear-guard clutch gear 111 on the XI axle and rear-guard intermediate gear 101 on the X axle or separate, switch on or off the power transmitted backward.
The utility model is by being that the IX axle is located on auxiliary transmission by main variable speed shaft, be provided with forerunner's clutch gear 41 and rear-guard clutch gear 111 simultaneously, make the front and back of microtractor drive and can export by Complete Synchronization, but also the independent output driven before and after can freely controlling as required.Can mate flexibly the agricultural machinery and implement of different purposes like this, easy to use.Most component are all general with existing gearbox, such as: main-gear box body 5, reverse idler gear 21, reverse gear 31, I shelves driving gear 32, III shelves driving gear 34, II shelves driving gear 35, forerunner's intermediate gear 51, gear shaft 72, actuation gear 81, I-reverse gear driven gear 91, central driver gear 92, II-III shelves driven gear 93, rear-guard intermediate gear 101, II axle, III axle, IV axle, VII axle, VIII axle, IX axle, X axle etc.At utmost reduced the Design and manufacture expense, also facilitated and used and keep in repair.
Claims (4)
1. small tractor gearbox, comprise main-gear box (5), include I ~ VIII axle in described main-gear box, described I axle is provided with high speed driving gear (11) and low-speed active gear (12), described II axle is provided with reverse idler gear (21), described III axle is provided with reverse gear (31), I shelves driving gear (32), carrier gear (33), III shelves driving gear (34) and II shelves driving gear (35), establish forerunner's clutch gear (41) on described IV axle, described V axle is provided with forerunner's intermediate gear (51), establish differential gear set (61 on described VI axle, 62, 63), establish respectively reduction gear (71 on two described VII axles, 72), establish respectively actuation gear (81) on two described VIII axles, it is characterized in that:
Also be connected with an auxiliary transmission (6) on described main-gear box (5), be provided with IX ~ X III axle in described auxiliary transmission, described IX axle is provided with I-reverse gear driven gear (91), central driver gear (92) and II-III shelves driven gear (93), described X axle is provided with rear-guard intermediate gear (101), described XI axle is provided with rear-guard clutch gear (111) and rear-guard driving gear (112), described XII axle is provided with rear-guard driven gear (122) and drive bevel gear (121), and described X III axle is provided with by dynamic bevel gear (131);
Described central driver gear (92) meshes with described carrier gear (33) and described rear-guard intermediate gear (101) respectively;
Described carrier gear (33) is socketed on described III axle.
2. small tractor gearbox according to claim 1, is characterized in that: in described main-gear box (5), be provided with for switching at a high speed and the shift fork A1 of bottom gear and the shift fork A2 that controls forerunner's clutch gear (41) clutch; Be provided with the shift fork A3 and the shift fork A4 that controls II-III shelves driven gears (93) and the shift fork A5 that controls described rear-guard clutch gear (111) clutch that control described I-reverse gear driven gear (91) in described auxiliary transmission (6).
3. small tractor gearbox according to claim 1 and 2, it is characterized in that: described carrier gear (33) comprises hub splines and the bearing be embedded on gear mass.
4. small tractor gearbox according to claim 1 and 2 is characterized in that: described IX axle equals the distance of described IV to the III axle to the distance of III axle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320337433 CN203363022U (en) | 2013-06-13 | 2013-06-13 | Small-sized tractor gearbox |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320337433 CN203363022U (en) | 2013-06-13 | 2013-06-13 | Small-sized tractor gearbox |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363022U true CN203363022U (en) | 2013-12-25 |
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ID=49810793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320337433 Expired - Fee Related CN203363022U (en) | 2013-06-13 | 2013-06-13 | Small-sized tractor gearbox |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363022U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291857A (en) * | 2013-06-13 | 2013-09-11 | 广西宜州玉柴农业装备有限公司 | Gearbox of small tractor |
-
2013
- 2013-06-13 CN CN 201320337433 patent/CN203363022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291857A (en) * | 2013-06-13 | 2013-09-11 | 广西宜州玉柴农业装备有限公司 | Gearbox of small tractor |
| CN103291857B (en) * | 2013-06-13 | 2016-03-23 | 广西宜州玉柴农业装备有限公司 | Small tractor gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20160613 |