CN2392949Y - Drive box capable of fitting housing - Google Patents
Drive box capable of fitting housing Download PDFInfo
- Publication number
- CN2392949Y CN2392949Y CN 99229477 CN99229477U CN2392949Y CN 2392949 Y CN2392949 Y CN 2392949Y CN 99229477 CN99229477 CN 99229477 CN 99229477 U CN99229477 U CN 99229477U CN 2392949 Y CN2392949 Y CN 2392949Y
- Authority
- CN
- China
- Prior art keywords
- shaft
- transmission case
- bearings
- case body
- drive box
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- General Details Of Gearings (AREA)
Abstract
The utility model relates to a tractor drive box capable of installing a housing, which comprises a drive box body, a clutch shaft, an input shaft of a speed change box, a driving and a driven gears arranged on the shafts, and an intermediate shaft arranged between the shafts, wherein, the clutch shaft and the input shaft of a speed change box are arranged on the drive box, an intermediate gear is arranged on the intermediate shaft through two bearings, a hole using shield ring arranged in the intermediate gear is arranged between the two bearings, and cushion rings are respectively arranged between the two bearings and between the inner walls of the bearings and the drive box body; the left end of the intermediate shaft is sealed with a shaft cap, the right side is sealed with the drive box body through a sealing ring, and the right side of the drive box body is adjacent with the housing. Thereby, the utility model has the characteristics of reasonable structure and reasonable positioning effect; the utility model can meet the work requirement and can be assembled with the housing without barrier.
Description
The utility model relates to the transmission case of a kind of hand tractor or steering-wheel type tractor, the especially a kind of transmission case that can lay case.
No matter be hand tractor or steering-wheel type tractor, the power of its motor all reaches gearbox driving tractor by transmission case and travels.As far back as the sixties, the hand tractor upper gear box had just once adopted gear transmission structure, it mainly contains clutch shaft, gear-box axle is gone into axle, reached two jack shafts, and be contained in driving gear on each, two intermediate gears and driven gear and constitute, wherein intermediate gear all is contained on the jack shaft by two bearings, but this centre drive mechanism has the position structure of gear, the hole back-up ring promptly only is housed in the perforation of intermediate gear, and be arranged in the middle of the outer back-up ring of two bearings, so bearing lacks rational position structure.Owing to adopt two jack shafts, total is comparatively complicated.Later on transmission case changes chain transmission into, but along with the user in use, hypervelocity overload phenomenon is more serious, has caused the chain disconnection, causes the damage of other pieces again, therefore, can not satisfy job requirement.
The purpose of this utility model provides a kind of rational in infrastructure, and the location is reliable, can satisfy the transmission case of the case installed of need of work.
The utility model is that the technological scheme that achieves the above object is: a kind of transmission case that case is installed, comprise transmission case body, be contained in clutch shaft and gearbox input shaft on the transmission case body by supporting connecting piece, the jack shaft that is arranged between clutch shaft and the gearbox input shaft is contained on the transmission case body, driving gear and driven gear are contained in respectively on clutch shaft and the gearbox input shaft, intermediate gear is contained on the jack shaft by two bearings, and the hole is housed with back-up ring and be arranged between two bearings in the perforation of intermediate gear, it is characterized in that: the jack shaft right side is shorter than or is fair with the exterior edge face, right side of the moving casing of case, between two bearings and between bearing and the transmission case body right side inwall packing ring is housed respectively, shaft-cup is sealedly connected on the exterior edge face, transmission case body left side, and the shaft shoulder of shaft-cup by jack shaft is pressed on two bearings and two packing rings; Seal ring is housed in the annular groove on the right side of jack shaft and is tightly connected with transmission case body, the exterior edge face, right side and the case of transmission case body are adjacent, and the middle and lower part of case is fluted.
Advantage after the employing technique scheme is: transmission case adopts gear transmission structure, three grades of original transmissions are kept to the secondary transmission, and on basis, only cogged location originally, increase the positioning means of bearing again, prevented the axial float of bearing, further improved functional reliability, also simplified simultaneously original structure, make comparatively advantages of simple of this kind structure,, also can satisfy job requirement along with the increase of tractor power and load.Secondly, because the sealing configuration of the jack shaft in the transmission case, the shaft-cup sealing is adopted in its left side, seal ring and transmission case sealing are adopted in the right side, make the right side of jack shaft not exceed the exterior edge face, right side of transmission case, therefore the right side of transmission case has enough spaces that case is installed, and has kept case and the original mounting point of gearbox casing.Especially for hand tractor, because the case overall structure does not have destruction, so complete machine when stressed, has also kept original intensity and rigidity.In addition the case middle and lower part fluted after, enough space mounting oil pumps are arranged, to satisfy from unloading functions.
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is that the A of Fig. 1 is to schematic representation.
As shown in Figure 1, a kind of transmission case that case is installed of the utility model, comprise transmission case body 2, be contained in clutch shaft 13 and gearbox input shaft 8 (transmission main shaft) on the transmission case body 2 by supporting connecting piece, the jack shaft 5 that is arranged between clutch shaft 13 and the gearbox input shaft 8 is contained on the axis hole of transmission case body 2, and be transition fit in the axis hole of transmission case body 2, driving gear 1 and driven gear 9 are contained in respectively on clutch shaft 13 and the gearbox input shaft 8, intermediate gear 7 is contained on the jack shaft 5 by two bearings 12, and hole back-up ring 10 is housed in the annular groove in the perforation of intermediate gear 7, the hole is arranged between two bearings 12 with back-up ring 10, and the hole contacts with the outer ring of a bearing 12 with a side of back-up ring 12.As shown in Figure 1, the right side of jack shaft 5 is shorter than the exterior edge face, right side of transmission case body 2, perhaps the exterior edge face, right side of the right side of jack shaft 5 and transmission case body 2 maintains an equal level, between two bearings 12 packing ring 6 is housed also, and between bearing 12 and the transmission case body 2 right side inwalls packing ring 6 is housed also, be contained in shaft-cup 11 on the exterior edge face, transmission case body 2 right side and be pressed in jack shaft 5, and the shaft shoulder by jack shaft 5 is pressed on the inner ring and two packing rings 6 of two bearings 12, thereby guaranteed intermediate gear 7 and bearing 12 no axial floats, made axially locating reliable.For preventing that the lubricant oil in the transmission case from flowing out from jack shaft 5 two ends, the end face of the end face of shaft-cup 11 and transmission case body 2 joins with sealing gasket and sealer, and it is fastening with fastening piece, seal ring 4 is housed in the annular groove on the right side of jack shaft 5, seal ring 4 adopts the O RunddichtringOs and is tightly connected with the shaft hole inner wall of transmission case body 2, this has promptly prevented leakage of oil, the exterior edge face, right side of transmission case body 2 has enough spaces to place case 3 again simultaneously, makes original case 3 adjacent with the exterior edge face, right side of transmission case body 2.Shown in Fig. 1～2, its relevant position, the middle and lower part of case 3 to satisfy the user to the requirement of tractor from unloading functions, can be installed oil pump clutch assembly and gear pump assembly towards fluted 3-1.
For making intermediate gear 7 and bearing 12 location more reasonable, motion is flexible, and the width dimensions of packing ring 6 is greater than the width dimensions of hole with back-up ring 10.
Claims (3)
1, a kind of transmission case that case is installed, comprise transmission case body (2), be contained in clutch shaft (13) and gearbox input shaft (8) on the transmission case body (2) by supporting connecting piece, the jack shaft (5) that is arranged between clutch shaft (13) and the gearbox input shaft (8) is contained on the transmission case body (2), driving gear (1) and driven gear (9) are contained in respectively on clutch shaft (13) and the gearbox input shaft (8), intermediate gear (7) is contained on the jack shaft (5) by two bearings (12), and the hole is housed with back-up ring (10) and be arranged between two bearings (12) in the perforation of intermediate gear (7), it is characterized in that: jack shaft (5) right side is shorter than or is fair with the exterior edge face, right side of the moving casing (2) of case, between two bearings (12) and between bearing (12) and transmission case body (2) inwall packing ring (6) is housed respectively, shaft-cup (11) is sealedly connected on the exterior edge face, transmission case body (2) left side, and shaft-cup (11) is pressed on two bearings (12) and two packing rings (6) by the shaft shoulder of jack shaft (5); Seal ring (4) is housed in the annular groove on the right side of jack shaft (5) and is tightly connected with transmission case body (2), the exterior edge face, right side of transmission case body (2) is adjacent with case (3), the middle and lower part of case (3) fluted (3-1).
2, the transmission case that case is installed according to claim 1 is characterized in that: the width dimensions of packing ring (6) is greater than the width dimensions of hole with back-up ring (10).
3, the transmission case that case is installed according to claim 1 is characterized in that: jack shaft (5) is transition fit with transmission case body (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229477 CN2392949Y (en) | 1999-09-22 | 1999-09-22 | Drive box capable of fitting housing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229477 CN2392949Y (en) | 1999-09-22 | 1999-09-22 | Drive box capable of fitting housing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2392949Y true CN2392949Y (en) | 2000-08-23 |
Family
ID=34018715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229477 Expired - Fee Related CN2392949Y (en) | 1999-09-22 | 1999-09-22 | Drive box capable of fitting housing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2392949Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478098A (en) * | 2010-11-22 | 2012-05-30 | 北京精密机电控制设备研究所 | Compact type zero side clearance parallel-shaft gear speed reducer |
-
1999
- 1999-09-22 CN CN 99229477 patent/CN2392949Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478098A (en) * | 2010-11-22 | 2012-05-30 | 北京精密机电控制设备研究所 | Compact type zero side clearance parallel-shaft gear speed reducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XINZHAOFENG AGRICULTURAL MACHINERY CO., LTD., CHA Free format text: FORMER OWNER: CHANGXIN FARM-MACHINE CO., LTD., CHANGZHOU Effective date: 20030912 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20030912 Patentee after: Changzhou City Zhaofeng Agricultural Machinery Co Ltd Patentee before: Changxin Farm-Machine Co., Ltd., Changzhou |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |