CN104141740A - Tractor transfer case - Google Patents
Tractor transfer case Download PDFInfo
- Publication number
- CN104141740A CN104141740A CN201410357759.5A CN201410357759A CN104141740A CN 104141740 A CN104141740 A CN 104141740A CN 201410357759 A CN201410357759 A CN 201410357759A CN 104141740 A CN104141740 A CN 104141740A
- Authority
- CN
- China
- Prior art keywords
- gear
- input shaft
- output shaft
- shaft
- casing
- 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.)
- Pending
Links
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/20—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members
- F16H1/22—Toothed gearings for conveying rotary motion without gears having orbital motion involving more than two intermeshing members with a plurality of driving or driven shafts; with arrangements for dividing torque between two or more intermediate shafts
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/029—Gearboxes; Mounting gearing therein characterised by means for sealing the gearboxes, e.g. to improve airtightness
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H63/00—Control outputs from the control unit to change-speed- or reversing-gearings for conveying rotary motion or to other devices than the final output mechanism
- F16H63/02—Final output mechanisms therefor; Actuating means for the final output mechanisms
- F16H63/30—Constructional features of the final output mechanisms
- F16H63/34—Locking or disabling mechanisms
- F16H63/3416—Parking lock mechanisms or brakes in the transmission
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
The invention discloses a tractor transfer case. An input shaft, an intermediate shaft and an output shaft are sequentially installed in a case body from top to bottom and distributed in parallel. An input shaft gear and a spacer bush II are installed on the input shaft side by side, duplicate gears are installed on the intermediate shaft and composed of a high-speed gear and a low-speed gear, and an output shaft gear and a spacer bush III are installed on the output shaft side by side. The input shaft gear is meshed with the low-speed gear of the duplicate gears, the output shaft gear is meshed with the high-speed gear of the duplicate gears, the two ends, extending out of the two ends of the case body, of the output shaft are respectively connected with a universal coupler through a spline, the input shaft is connected with an output shaft of a gearbox through a spline, the case body and the gearbox are fixedly connected in parallel through a support (28), and the support is installed on a rear frame of a tractor. The tractor transfer case is simple in structure, reliable in work and large in transmission speed ratio, achieves low-speed large-torque output, and improves transmission efficiency of the tractor, and simultaneous drive of front wheels and rear wheels, the consistent synchronous rate and the stable speed output of the tractor are achieved.
Description
Technical field
The invention belongs to agricultural mechanical field, specifically relate to a kind of transfer case of tractor.
Background technique
The tractor transfer case of domestic current appearance is generally that transmission speed ratio is little, little moment of torsion, only have two driven off by shaft power plant, make the transmission usefulness that tractor grade climbing performance is poor, can not make full use of transfer case, before and after making tractor, driving wheel sync rates is not quite consistent, and can not increase as required the power delivery outlet of expanding transfer case.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of new tractor transfer case, realizes that transmission speed ratio is large, low-speed big output, improves tractor transmission usefulness, realizes tractor front and back wheels and drives that sync rates is consistent, speed is steadily exported simultaneously.
The present invention solves the problems of the technologies described above with following technological scheme:
Tractor transfer case of the present invention, comprises casing 1, and input shaft 9, jack shaft 19 and the output shaft 3 of parallel arrangement is from top to bottom installed in casing 1 successively, and input shaft gear 15 and spacer II 11 are installed on input shaft 9 side by side; Duplicate gear 20 is installed on jack shaft 19, and duplicate gear 20 consists of high gear and low speed gear; Output shaft gear 21 and spacer III24 are installed on output shaft 3 side by side; Input shaft gear 15 meshes with the low speed gear of duplicate gear 20, and output shaft gear 21 meshes with the high gear of duplicate gear 20; The two ends that output shaft 3 stretches out casing 1 respectively with universal shaft coupling device 26 with spline joint; Input shaft 9 is with the output shaft of gearbox 29 with spline joint, and casing 1 is fixedly connected with by support 28 is parallel with gearbox 29, and support 28 is arranged on after tractor on vehicle frame 30.
Tractor transfer case of the present invention, mounting seat of brake 7, Parking Brake 38, spacer I6 and braking bottom board fixed base 8 are installed on described input shaft 9 or jack shaft 19, Parking Brake 38 can be fixedly connected with input shaft 9 or jack shaft 19 by mounting seat of brake 7, and be connected with braking bottom board fixed base 8 by fastening screw trip bolt I4, between input shaft 9 or jack shaft 19 and Parking Brake 38, spacer I6 is installed; In the both ends of the surface of braking bottom board fixed base 8, there is respectively oil sealing I5.
Tractor transfer case of the present invention, described input shaft 9 is arranged on casing 1 by bearing I 12 and bearing I V25, bearing I 12 and bearing I V25 lay respectively at the outside of spacer II 11 and input shaft gear 15, the outside of bearing I V25 is provided with input shaft end cap I10, and the outside of bearing I 12 is provided with input shaft end cap II13; Described jack shaft is arranged on casing 1 by bearing I I17, and its axle head is equipped with jack shaft end cap 18 and is encapsulated on casing 1; Described output shaft 3 is arranged on casing 1 by two bearing I II22, output shaft gear 21 and spacer III24 are placed between two bearing I II22, the outside of two bearing I II22 has output shaft end cap 2 to be encapsulated on casing 1, and the both ends of the surface of two output shaft end caps 2 have respectively oil sealing III23.
Tractor transfer case of the present invention, described casing 1 middle part, side has capping plate 32 and sealing gasket VII39 to be arranged on casing 1, and capping plate 32 is provided with oil filler 27, and bleeder screw 31 screws in oil filler 27.
Tractor transfer case of the present invention, the bottom of described casing 1 is provided with plug 33.
Tractor transfer case of the present invention, the position that the two ends of described output shaft 3 are connected with Hooks coupling universal coupling 26 and front and back wheels differential mechanism are on same level line.
Tractor transfer case of the present invention has following beneficial effect:
1, auxiliary box structure of the present invention is simple, and the speed that can realize is steadily exported.The power of motor output, through the axle speed change of three parallel arrangements of transfer case, has larger velocity ratio, and low-speed big is realized the strong feature of tractor climbing passing capacity.
2, transfer case output shaft of the present invention is connected with front and back road wheel differential mechanism through universal shaft coupling simultaneously, and in the same horizontal line, thereby four-wheel drive sync rates unanimously improves effectively before and after realizing, effectively improved the transmission usefulness of transfer case, extend the working life of transfer case.
3, transfer case of the present invention is fixedly connected with gearbox with support, and is supported on rear vehicle frame, simple in structure, easy for installation, reliable operation, and input shaft Rigidity and strength is increased, transmission efficiency is high.
4, Parking Brake is equipped with in jack shaft one end of transfer case of the present invention, realizes parking braking, and Parking Brake can be arranged on the input shaft or jack shaft of transfer case as required, can realize parking function; On the input shaft of transfer case or jack shaft, can set up as required and expand second pto＝power take-off, realize two power delivery outlets.
Accompanying drawing explanation
Fig. 1 is the vertical structure schematic diagram of tractor transfer case of the present invention.
Fig. 2 be Fig. 1 dissect facade structures schematic diagram.
Fig. 3 is that schematic diagram is looked on a left side of Fig. 1.
In figure: 1-casing, 2-output shaft end cap, 3-output shaft, 4-fastening screw trip bolt I, 5-oil sealing I, 6-spacer I, 7-mounting seat of brake, 8-braking bottom board fixed base, 9-input shaft, 10-input shaft end cap I, 11-spacer II, 12-bearing I, 13-input shaft end cap II, 14-oil sealing II, 15-input shaft gear, 17-bearing I I, 18-jack shaft end cap, 19-jack shaft, 20-duplicate gear, 21-output shaft gear, 22-bearing I II, 23-oil sealing III, 24-spacer III, 25-bearing I V, 26-Hooks coupling universal coupling, 27-oil filler, 28-support, 29-gearbox, vehicle frame after 30-tractor, 31-bleeder screw, 32-capping plate, 33-plug, 38-Parking Brake, 39-sealing gasket VII.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in drawings, input shaft 9, jack shaft 19 and the output shaft 3 of parallel arrangement are from top to bottom installed in the casing 1 of the tractor transfer case of the present embodiment successively, input shaft gear 15 and spacer II 11 are installed on input shaft 9 side by side, realize input shaft gear and operate steadily; Duplicate gear 20 is installed on jack shaft 19, and duplicate gear 20 consists of high gear and low speed gear; Output shaft gear 21 and spacer III24 are installed on output shaft 3 side by side, realize output shaft gear and operate steadily; Input shaft gear 15 meshes with the low speed gear of duplicate gear 20, and output shaft gear 21 meshes with the high gear of duplicate gear 20; The two ends that output shaft 3 stretches out casing 1 respectively with universal shaft coupling device 26 with spline joint; Input shaft 9 is with the output shaft of gearbox 29 with spline joint, and casing 1 is fixedly connected with by support 28 is parallel with gearbox 29, and support 28 is arranged on after tractor on vehicle frame 30, makes Transmission Shaft Stiffness and intensity increase, and transmission efficiency is high.
The present invention can install locking device for a vehicle as required on input shaft 9 or jack shaft 19.The locking device for a vehicle of the present embodiment is arranged on jack shaft 19, concrete structure is: jack shaft 19 is provided with mounting seat of brake 7, Parking Brake 38, spacer I6 and braking bottom board fixed base 8, Parking Brake 38 is fixedly connected with jack shaft 19 by mounting seat of brake 7, and be connected with braking bottom board fixed base 8 by fastening screw trip bolt I4, between jack shaft 19 and Parking Brake 38, spacer I6 is installed; In the both ends of the surface of braking bottom board fixed base 8, there is respectively oil sealing I5.By jack shaft 19, connect Parking Brake 38, realize parking braking; 38 of jack shaft 19 and Parking Brakes are provided with spacer I6, Parking Brake 38 are installed fastening firm, strengthen safe and reliable property.
Tractor transfer case of the present invention, described input shaft 9 is arranged on casing 1 by bearing I 12 and bearing I V25, bearing I 12 and bearing I V25 lay respectively at the outside of spacer II 11 and input shaft gear 15, the outside of bearing I V25 is provided with input shaft end cap I10, and the outside of bearing I 12 is provided with input shaft end cap II13; Described jack shaft is arranged on casing 1 by bearing I I17, and its axle head is equipped with jack shaft end cap 18 and is encapsulated on casing 1; Described output shaft 3 is arranged on casing 1 by two bearing I II22, output shaft gear 21 and spacer III24 are placed between two bearing I II22, the outside of two bearing I II22 has output shaft end cap 2 to be encapsulated on casing 1, and the both ends of the surface of two output shaft end caps 2 have respectively oil sealing III23.
As shown in Figure 3, casing 1 middle part, side has capping plate 32 and sealing gasket VII39 to be arranged on casing 1, and capping plate 32 is provided with oil filler 27, and bleeder screw 31 screws in oil filler 27 and screws, and prevents machine oil oil impregnate.
The present invention is provided with plug 33 in the bottom of casing 1, is convenient for changing machine oil, as shown in Figure 1.
The position that output shaft of the present invention 3 two ends are connected with Hooks coupling universal coupling 26 and front and back wheels differential mechanism, on same level line, have been eliminated the axis knuckle of gimbal coupling on horizontal plane, have improved the transmission efficiency of gimbal coupling, and have reduced its rate of fault.
The attainable power transmission route of transfer case of the present invention is as follows:
The input shaft 9 of transfer case of the present invention and the output shaft of gearbox 4 are with spline joint, when power passes to the input shaft 9 of transfer case from gearbox 38, input shaft 9 drives input shaft gear 15 runnings, input shaft gear 15 and the low speed gear engagement that is arranged on the duplicate gear 20 of jack shaft 19, jack shaft 19 is realized running, the high gear of duplicate gear 20 and output shaft gear 21 engagements, power is reached to output shaft 3, output shaft 3 passes to tractor front and back road wheel differential mechanism through Hooks coupling universal coupling 26 by power, thereby before and after realizing, four-wheel synchronously drives.Parking Brake 6 is equipped with in jack shaft 19 one end of transfer case, realizes parking braking.
Claims (6)
1. tractor transfer case, comprise casing (1), it is characterized in that, input shaft (9), jack shaft (19) and the output shaft (3) of parallel arrangement are from top to bottom installed in casing (1) successively, input shaft gear (15) and spacer II (11) are installed on input shaft (9) side by side; Duplicate gear (20) is installed on jack shaft (19), and duplicate gear (20) consists of high gear and low speed gear; Output shaft gear (21) and spacer III (24) are installed on output shaft (3) side by side; Input shaft gear (15) meshes with the low speed gear of duplicate gear (20), and output shaft gear (21) meshes with the high gear of duplicate gear (20); The two ends that output shaft (3) stretches out casing (1) respectively with universal shaft coupling device (26) with spline joint; The output shaft of input shaft (9) and gearbox (29) is with spline joint, and casing (1) is with gearbox (29) by parallel being fixedly connected with of support (28), and support (28) is arranged on after tractor on vehicle frame (30).
2. tractor transfer case according to claim 1, it is characterized in that, upper mounting seat of brake (7), parking braking (38), spacer I (6) and the braking bottom board fixed base (8) installed of described input shaft (9) or jack shaft (19), Parking Brake (38) is fixedly connected with input shaft (9) or jack shaft (19) by mounting seat of brake (7), and be connected with braking bottom board fixed base (8) by fastening screw trip bolt I (4), between input shaft (9) or jack shaft (19) and Parking Brake (38), spacer I (6) is installed; In the both ends of the surface of braking bottom board fixed base (8), there is respectively oil sealing I (5).
3. tractor transfer case according to claim 1, it is characterized in that, described input shaft (9) is arranged on casing (1) by bearing I (12) and bearing I V (25), bearing I (12) and bearing I V (25) lay respectively at the outside of spacer II (11) and input shaft gear (15), the outside of bearing I V (25) is provided with input shaft end cap I (10), and the outside of bearing I (12) is provided with input shaft end cap II (13); It is upper that described jack shaft is arranged on casing (1) by bearing I I (17), and its axle head has jack shaft end cap (18) to be encapsulated on casing 1; Described output shaft (3) is arranged on casing (1) by two bearing I II (22), output shaft gear (21) and spacer III (24) are placed between two bearing I II (22), it is upper that the outside of two bearing I II (22) has output shaft end cap (2) to be encapsulated in casing (1), and the both ends of the surface of two output shaft end caps (2) have respectively oil sealing III (23).
4. tractor transfer case according to claim 1, it is characterized in that, middle part, described casing (1) side has capping plate (32) and sealing gasket VII (39) to be arranged on casing (1), capping plate (32) is provided with oil filler (27), and bleeder screw (31) screws in oil filler (27).
5. tractor transfer case according to claim 1, is characterized in that, the bottom of described casing (1) is provided with plug (33).
6. tractor transfer case according to claim 1, is characterized in that, the position that the two ends of described output shaft (3) are connected with Hooks coupling universal coupling (26) and front and back wheels differential mechanism are on same level line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357759.5A CN104141740A (en) | 2014-07-24 | 2014-07-24 | Tractor transfer case |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410357759.5A CN104141740A (en) | 2014-07-24 | 2014-07-24 | Tractor transfer case |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104141740A true CN104141740A (en) | 2014-11-12 |
Family
ID=51851015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410357759.5A Pending CN104141740A (en) | 2014-07-24 | 2014-07-24 | Tractor transfer case |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104141740A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342185A (en) * | 2022-08-26 | 2022-11-15 | 福建尚锟齿轮箱制造有限公司 | High-low gear independent pneumatic gear shifting transfer case assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201363400Y (en) * | 2009-02-19 | 2009-12-16 | 中国一拖集团有限公司 | Rear transfer case of tractor |
| CN202992055U (en) * | 2012-12-05 | 2013-06-12 | 中原特种车辆有限公司 | Transfer case for workover rig |
| CN203093741U (en) * | 2013-03-14 | 2013-07-31 | 广西澜光科技有限公司 | Four-wheel drive bowing type steering multi-purpose tractor |
| CN203962874U (en) * | 2014-07-24 | 2014-11-26 | 广西澜光科技有限公司 | Tractor transfer case |
-
2014
- 2014-07-24 CN CN201410357759.5A patent/CN104141740A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201363400Y (en) * | 2009-02-19 | 2009-12-16 | 中国一拖集团有限公司 | Rear transfer case of tractor |
| CN202992055U (en) * | 2012-12-05 | 2013-06-12 | 中原特种车辆有限公司 | Transfer case for workover rig |
| CN203093741U (en) * | 2013-03-14 | 2013-07-31 | 广西澜光科技有限公司 | Four-wheel drive bowing type steering multi-purpose tractor |
| CN203962874U (en) * | 2014-07-24 | 2014-11-26 | 广西澜光科技有限公司 | Tractor transfer case |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115342185A (en) * | 2022-08-26 | 2022-11-15 | 福建尚锟齿轮箱制造有限公司 | High-low gear independent pneumatic gear shifting transfer case assembly |
| CN115342185B (en) * | 2022-08-26 | 2023-08-01 | 福建尚锟齿轮箱制造有限公司 | High-low gear independent pneumatic gear shifting transfer case assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141112 |