CN202301782U - Front and/rear drive full-gear-position synchronous tractor - Google Patents
Front and/rear drive full-gear-position synchronous tractor Download PDFInfo
- Publication number
- CN202301782U CN202301782U CN2011203868431U CN201120386843U CN202301782U CN 202301782 U CN202301782 U CN 202301782U CN 2011203868431 U CN2011203868431 U CN 2011203868431U CN 201120386843 U CN201120386843 U CN 201120386843U CN 202301782 U CN202301782 U CN 202301782U
- Authority
- CN
- China
- Prior art keywords
- gear
- shifting block
- fork
- shift
- shifting
- 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
Links
Images
Landscapes
- Arrangement Or Mounting Of Control Devices For Change-Speed Gearing (AREA)
Abstract
The utility model discloses a front and/rear drive full-gear-position synchronous tractor which comprises a speed change box and a gear position control device. The tractor is characterized in that a rear transmission transition gear is meshed with a front drive driving gear and a rear drive driving gear at the same time, so that power is transmitted to a rear drive wheel through a corresponding transmission device; shifting fork shifting heads of an I-reverse gear position and an II-III gear position on a gear position change shaft are arranged on the same straight line in the same plane; an auxiliary speed-change double-linkage shifting forks and shifting heads are arranged on a shifting fork slot formed on one sides of a left input gear and a right input gear on a power input shaft; a positioning shifting fork and a positioning shifting head are arranged on the shifting fork slot of each of a left turning gear and a right turning gear; and gear position change limiting structures corresponding to control on the shifting heads of I-reverse gear position and the II-III gear position are arranged on a box body above the shifting fork shifting heads of I-reverse gear position and the II-III gear position. The gear positions of the tractor are clear, and the gear positions are changed stably and orderly. In a cab, forwarding/retreating and left/right swinging positioning of a gear position change rod are controlled by horizontal operation, namely gear position change and speed change can be realized.
Description
Technical field
The utility model relates to a kind of agricultural machinery, and especially hand tractor is reequiped the tractor that is used to transport.
Background technique
The steering wheel tractor that existing hand tractor repacking is used to transport; Great majority are on the basis of workers and peasants' 12 type hand tractors, to carry out; Also have the tractor that drives before and after many repacking into, gearbox has been done bigger change, be unfavorable for the maintenance of tractor from now on and the versatility of accessory.Also exist following deficiency: the rotating speed of (1) front and back wheels is asynchronous; (2) can only before or front and back drive simultaneously; (3) the engage a gear head of steering wheel tractor reaches the operator cabin the inside, and the radius of gyration is big during turning, and driver's operation is difficult; (4) occur in operation losing rank with disorderly shelves are more.
The model utility content
The purpose of the utility model provide a kind of before with the full shelves of/rear driving tractor synchronously; Can overcome the deficiency of above-mentioned existing technology; Constant at former gearbox casing; Internal structure change little with can be independent before/situation of rear driving under, can also be synchronously before and rear driving, and solved in operator cabin engage a gear and lost rank and random grade problem.
For achieving the above object, the technological scheme of the utility model is:
With the full shelves of/rear driving tractor synchronously, it comprises gearbox and shift-position control apparatus, it is characterized in that before a kind of:
In the gearbox
On driving shaft, be provided with back transmission transition gear through bearing; Back transmission transition gear meshes with forerunner's driving gear and rear-guard driving gear simultaneously; On the splined shaft of rear-guard driving gear; Also be provided with the initiative taper generating gear, the driven angular wheel that is meshed with the initiative taper generating gear is passed to rear drive sprocket with power through corresponding transmission device through its rear drive shaft;
With the shift fork shifting block of the one side fork slot of the I-reverse gear on the shift axle, be arranged on the isoplanar straight line with shift fork shifting block with II-III shelves gear one side fork slot on the shift axle;
On the fork slot of the input of the left side on power input shaft gear and right input gear one side, be provided with secondary speed change duplex shift fork and shifting block, i.e. the controlling device of speed shelves;
On the fork slot of left-hand rotation gear and right-hand rotation gear, respectively be provided with orientable shift fork and shifting block, can about two commentaries on classics gears be dialled simultaneously and leave/the applying differential mechanism, whether realize front wheel driving;
Outside the gearbox
On the casing above I-reverse gear shift fork shifting block and the II-III shelves gear shifter fork shifting block, be provided with one and control opening; Comprise the gear control box of base plate and loam cake above the opening through being fixedly connected at this; On base plate,, be provided with I-reverse gear shift fork shifting block and II-III shelves gear shifter fork shifting block and control corresponding shift limit structure with the neutral position of controlling opening.
On a side fork slot of rear-guard driving gear, be provided with shift fork and shifting block, can change and the closing/leave of back transmission transition gear, whether realize rear driving.
The structure of described I-reverse gear shift fork shifting block and II-III shelves gear shifter fork shifting block is the square frame shape of a side opening, and the opening of two shifting blocks is relative, is fixedly connected with separately sleeve respectively below, is with declutch shift shaft separately in the sleeve respectively.
Described shift limit structure is to be respectively arranged with the gear groove of stirring shifting block about ability with I-reverse gear shift fork shifting block and the corresponding both sides of II-III shelves gear shifter fork shifting block, between the dividing plate between the two gear grooves, to be provided with the gear transition slot.
The full shelves of the preceding and/rear driving of above structure are tractor synchronously; On driving shaft, be provided with back transmission transition gear through bearing; This transition gear meshes with forerunner's driving gear and rear-guard driving gear simultaneously, power is passed to rear drive sprocket through corresponding transmission device, and on a side fork slot of rear-guard driving gear, be provided with single shift fork and shifting block; Change is closed/is left with driven transition gear, can whether realize rear driving; On the fork slot of left-hand rotation gear and right-hand rotation gear, be provided with and respectively be provided with orientable shift fork and shifting block, can about two commentaries on classics gears be dialled simultaneously through this shifting block and leave/the applying differential mechanism, whether realize front wheel driving.The driven shifting block in back with before corresponding gear limit structure on the casing above the driven shifting block, make gear clear, shift is stable not disorderly.In operator cabin,, can realize shifted through the forward/back and a left side/swing location, the right side of levels operation control Shift lever.
Description of drawings
Fig. 1 is the structural representation of the utility model gearbox.
Fig. 2 is the utility model engage a gear structural representation.
Fig. 3 is the structural representation of analysing and observe along the A-A line among Fig. 2.
Fig. 4 is the structural representation of secondary speed change duplex driving lever among Fig. 2.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
Shown in Figure 1, be the structural representation of the utility model gearbox.From figure, can know; With the dotted line is the boundary; The right side is the structure of workers and peasants' 12 type hand tractor gearboxes, and the left side is the rear drive configuration that the utility model increases, and is with bolted two parts on practical structures; And in Fig. 1, in order conveniently to understand these two-part are drawn in the same casing 1.In the gearbox on right side, the utility model is provided with secondary speed change duplex shift fork 7 and shifting block 8, the i.e. controlling device of speed shelves on the fork slot of the input of the left side on the power input shaft 45 gear 9 and right input gear 47 1 sides on the basis that does not change former casing 1.Power input shaft 45 is a splined shaft, can two gears 9 on the axle and 47 be vertically moved along axle 45 simultaneously through shifting block 8, changes corresponding with it meshed gears, realizes the adjusting of speed shelves.Because input gear 9 in a left side is different with the number of teeth with the diameter of right input gear 47, the rotating speed of passing to the next stage gear is also different, and the branch of fast/slow shelves is promptly arranged.Power input shaft 45 is through passing to driving shaft 44 with the left driving gear 10/ right driving gear 43 of left side input gear 9/ right input gear 47 engagements.On driving shaft 44, be provided with back transmission transition gear 11 through bearing, this transition gear 11 is rotationally connected with its central shaft 44 formations.In the drawings transition gear 11 anisopleural reasons be with it about middle gear 41 and rear-guard driving gear gear 49 and the axle thereof of engagement not in the cause on a plane.The gear 46 that seldom uses between III shelves gear 43, II shelves gear 42 and this two gear that to be fixed with I shelves gear 10 and reverse gear 12 and three gears on the driving shaft 44 be one, this gear 46 is mainly used in and drives the rake tool.Wherein, reverse gear 12 also meshes with a reverse gear transition gear 13.On shift axle 39, center fixed has middle gear 41, and the left side is provided with I-reverse gear handsetting gear 14 and is provided with II-III shelves handsetting gear 38 and 40 with the right side.On the fork slot of I-reverse gear handsetting gear 14 and II-III shelves handsetting gear 38 and 40, be respectively equipped with shift fork 16 and shifting block 15 and shift fork 17 and shifting block 18; And two shifting blocks 15 and shifting block 18 be arranged on the isoplanar straight line; The front and back of being convenient to the gear bar with about stir, realize shifted.See Fig. 2 and Fig. 3 and explanation thereof for details.Driving shaft 44 is a splined shaft, is fixedly connected with 43,46 and 42 with gear 10,12 on the axle.Shift axle 39 is splined shafts, can I-reverse gear handsetting gear 14/II-III shelves handsetting gear 38 and 40 be vertically moved along axle 39 through shifting block 15/18, changes the gear that is engaged with, thereby reaches shifted purpose.The rotating speed of shift axle 39 after along with each grade speed change rotating speed and change; Be that each grade speed change is accomplished on shift axle 39; And by the middle gear on the axle 41 through the back transmission transition gear that is engaged with 11 and forerunner's transition gear 36, with power respectively to trailing wheel and front-wheel transmission.Forerunner's transition gear 36 is fixedly connected with its forerunner's transition axis 37.Forerunner's transition gear 36 also with the engagement of the power input gear of differential mechanism 30, the both sides of differential axle 35 respectively are provided with left-hand rotation gear 19a and right-hand rotation gear 19b.On the fork slot of left-hand rotation gear 19a and right-hand rotation gear 19b, be provided with left shift fork 20 and shifting block 21, right shift fork 34 shifting blocks 33 respectively.Through shifting block 21,33 can with gear 19a and 19b dial simultaneously from/applying differential mechanism 30 and location, whether realize front wheel driving. Shifting block 21,33 stir and to be that those skilled in the art is very easy just can accomplish according to existing technology in the location, so do not give unnecessary details.In like manner; Gear 23,24,26 and Left Drive axle 22 from left-hand rotation gear 19a and right-hand rotation gear 19b to front-wheel drive left side axle 25 and the right axle 29; And the structure of gear 27,28,31 and right transmission shaft 32 is the original structures in the gearbox of workers and peasants' 12 type hand tractors, also do not give unnecessary details.
Structural principle from Fig. 1 can be known; Gearbox is behind power input shaft 45 input power; Accomplish after the speed changes by middle gear 41 through various shifting mechanisms power is passed to front driving wheel; The driving power of drawing to trailing wheel through back transmission transition gear 11 from the middle gear 41 again, driving wheel has good synchronism before and after making.On the axle 48 of rear-guard driving gear 49, also be provided with initiative taper generating gear 6, the driven angular wheel 5 that is meshed with initiative taper generating gear 6 is passed to rear drive sprocket with power through corresponding transmission device through its rear drive shaft 4.On a side fork slot of rear-guard driving gear 49, be provided with shift fork 3 and shifting block 2; Rear-guard driving shaft 48 is a splined shaft; Can rear-guard driving gear 49 be vertically moved along axle 48 through shifting block 2, change is closed/is left with back transmission transition gear 11, whether realizes rear driving.
Shown in Figure 2, be the utility model engage a gear structural representation.From figure, can know; In casing 1, I-reverse gear shifting block 15 and II-III shelves shifting block 18 are arranged on the isoplanar straight line, the structure of two shifting blocks is the square frame shape of a side opening; And the opening of two shifting blocks 15,18 is relative, is fixedly connected with separately sleeve 68,67 respectively below.Be with declutch shift shaft 69,66 separately in the sleeve 68,67 respectively; The two ends of declutch shift shaft 69,66 are fixedly connected with the both sides of casing 1 respectively; The following shift fork 16,17 that is fixedly connected respectively separately of sleeve 68,67.Can shift fork 16,17 be vertically moved and locate on declutch shift shaft 69,66 separately respectively through I-reverse gear shifting block 15 and II-III shelves shifting block 18.On the casing 1 above I-reverse gear shifting block 15 and the II-III shelves shifting block 18, be provided with one and control opening, being fixedly connected through screw 51 above the opening at this comprises the gear control box of base plate 50 and loam cake 52.On base plate 50, be provided with I-reverse gear shifting block 15 and II-III shelves shifting block 18 and control corresponding shift limit structure with the opposite position of controlling opening.Please combine Fig. 3 to come together to see for seeing this shift limit structure clearly, shown in Figure 3, be the structural representation of analysing and observe along the A-A line among Fig. 2.Be respectively arranged with the gear groove 70,71 of stirring shifting block about ability with I-reverse gear shifting block 15 and II-III shelves shifting block 18 corresponding both sides, between two gear grooves 70, dividing plate 55a, 55b between 71, be provided with the gear transition slot, constituting the shift limit structure.Dividing plate 55a, 55b are fixedly connected with base plate 50 through screw.Like this, the struck side 53 of Shift lever 62 can be put in shifting block 15 left side/right side and stirred shift fork 16, moves corresponding gear shift, or Shift lever 62 translations move in the shifting block 18 through transition slot, and a left side/right side is stirred shift fork 17 and moved corresponding gear shift.Shown in the arrow among Fig. 3.Because the shift limit structure has been arranged, make gear clear, shift is stable not disorderly.Shift lever 62 is respectively through being fixed on location in setting sleeve and the secondary Shift lever 58 that is enclosed within tubulose on the loam cake 52, and secondary Shift lever 58 is through being fixed on place kick 59 location on the operator cabin front baffle board 60.Wherein, before Shift lever 62 gets into loam cake 52, used a universal joint 65, made shift more smooth and easy; Excessively extract out for the struck side 53 that prevents Shift lever 62, on the Shift lever 62 at setting sleeve inner port place, be provided with limiting stopper 54, this also is to prevent to make one of stable not random measure of shift.In operator cabin,, can realize shifted through the bulb 61 horizontal forward/backs and a left side/swing location, the right side of levels operation control Shift lever 62.Secondary Shift lever 58 is stirred secondary speed change duplex shift fork 7 and shifting block 8 through a pull bar 57, and secondary speed change duplex shift fork 7 is located in the casing 1 with shifting block 8, and pull bar 57 lower ends of secondary Shift lever 58 and an end of driving lever 56 flexibly connect.As shown in Figure 4, Fig. 4 is the structural representation of secondary speed change duplex driving lever among Fig. 2.Driving lever 56 is made up of bearing pin 73, outer stringer board 72, the longitudinal axis 76, inner horizontal plate 74 and group post 75, and does to turn accordingly to locate to connect through the longitudinal axis 76 and gear control box.Wherein, the top and bottom of the longitudinal axis 76 are fixedly connected with an end of inner horizontal plate 74 with outer stringer board 72 respectively, and bearing pin 73 is fixedly connected with the other end of outer stringer board 72.Outer stringer board 72 constitutes an angle of 90 degrees respectively with inner horizontal plate 74, pull bar 57, dials post 75 and is fixedly connected and is inserted in the described secondary speed change duplex shifting block 8 with an end of inner horizontal plate 74.When secondary Shift lever 58 is located at the handle 63 in the operator cabin through it before/during back push-and-pull pull bar 57; Before pull bar 57 is also done an end of driving lever 56 outer stringer boards 72/the pusher roping is moving; The post 75 of dialling on inner horizontal plate 74 1 ends is swung; And drive secondary speed change duplex shifting block 8, shift fork 7 and left side input gear 9 and right input gear 47 and do a left side/move right, left side input gear 9 and right input gear 47 and corresponding gear 10/43 engagement are realized the adjusting of speed shelves.
In said structure, through shifting block 21,33 gear 19a and 19b are dialled applying differential mechanism 30 and location simultaneously, and rear-guard driving gear 49 is vertically moved the engagement with back transmission transition gear 11 along axle 48 through shifting block 2, drive together before and after realizing; If gear 19a and 19b are dialled from differential mechanism 30 and location simultaneously, and through shifting block 2 rear-guard driving gear 49 is vertically moved with back transmission transition gear 11 along axle 48 and to separate, realize front wheel driving, otherwise be rear driving through shifting block 21,33.
Claims (4)
- Before one kind with/full shelves of rear driving tractor synchronously, it comprises gearbox and shift-position control apparatus, it is characterized in that:In the gearbox (1)Upward be provided with back transmission transition gear (11) at driving shaft (44) through bearing; Back transmission transition gear (11) meshes with forerunner's driving gear (41) and rear-guard driving gear (49) simultaneously; On the splined shaft (48) of rear-guard driving gear (49); Also be provided with initiative taper generating gear (6), the driven angular wheel (5) that is meshed with initiative taper generating gear (6) is passed to rear drive sprocket with power through corresponding transmission device through its rear drive shaft (4);With shift fork (16) shifting block (15) of I-reverse gear (14) the one side fork slots on the shift axle (39), be arranged on the isoplanar straight line with shift fork (17) shifting block (18) of going up II-III shelves gear (40, a 38) side fork slot with shift axle (39);On the fork slot of input gear (9) of the left side on the power input shaft (45) and right input gear (47) one sides, be provided with secondary speed change duplex shift fork (7) and shifting block (8), the i.e. controlling device of speed shelves;On the fork slot of left-hand rotation gear (19a) and right-hand rotation gear (19b), respectively be provided with orientable shift fork (20,34) and shifting block (21,33), can change gear (19a, 19b) with about two and dial simultaneously, whether realize front wheel driving from/applying differential mechanism (30);Outside the gearbox (1)On the casing of I-reverse gear shift fork shifting block (15) and II-III shelves gear shifter fork shifting block (18) top, be provided with one and control opening; Comprise the gear control box of base plate (50) and loam cake (52) above the opening through being fixedly connected at this; At base plate (50) with control the neutral position of opening, be provided with I-reverse gear shift fork shifting block (15) and II-III shelves gear shifter fork shifting block (18) and control corresponding shift limit structure.
- 2. with the full shelves of/rear driving tractor synchronously, it is characterized in that before according to claim 1:On a side fork slot of said rear-guard driving gear (49), be provided with shift fork (3) and shifting block (2), can change and the closing/leave of back transmission transition gear, whether realize rear driving.
- 3. with the full shelves of/rear driving tractor synchronously, it is characterized in that before according to claim 1:The structure of described I-reverse gear shift fork shifting block (15) and II-III shelves gear shifter fork shifting block (18) is the square frame shape of a side opening; And the opening of two shifting blocks (15,18) is relative; Be fixedly connected with separately sleeve (67,68) respectively below, be with declutch shift shaft (66,69) separately in the sleeve (67,68) respectively.
- According to claim 1 or 3 described before with the full shelves of/rear driving tractor synchronously, it is characterized in that:Described shift limit structure is to be respectively arranged with the gear groove (70,71) of stirring shifting block about ability with I-reverse gear shift fork shifting block (15) and the corresponding both sides of II-III shelves gear shifter fork shifting block (18), between the dividing plate (55a, 55b) between the two gear grooves (70,71), to be provided with the gear transition slot.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868431U CN202301782U (en) | 2011-10-12 | 2011-10-12 | Front and/rear drive full-gear-position synchronous tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203868431U CN202301782U (en) | 2011-10-12 | 2011-10-12 | Front and/rear drive full-gear-position synchronous tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202301782U true CN202301782U (en) | 2012-07-04 |
Family
ID=46370686
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203868431U Expired - Fee Related CN202301782U (en) | 2011-10-12 | 2011-10-12 | Front and/rear drive full-gear-position synchronous tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202301782U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991350A (en) * | 2012-12-24 | 2013-03-27 | 南宁市武拖机械有限责任公司 | Front and back four wheel driving tractor of single speed changing box |
| CN103016649A (en) * | 2012-12-24 | 2013-04-03 | 南宁市武拖机械有限责任公司 | Three-face synchronous output gear transmission box |
-
2011
- 2011-10-12 CN CN2011203868431U patent/CN202301782U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102991350A (en) * | 2012-12-24 | 2013-03-27 | 南宁市武拖机械有限责任公司 | Front and back four wheel driving tractor of single speed changing box |
| CN103016649A (en) * | 2012-12-24 | 2013-04-03 | 南宁市武拖机械有限责任公司 | Three-face synchronous output gear transmission box |
| CN102991350B (en) * | 2012-12-24 | 2016-01-13 | 南宁市武拖机械有限责任公司 | Four-wheel drive tractor before and after single change speed gear box |
| CN103016649B (en) * | 2012-12-24 | 2016-06-29 | 南宁市武拖机械有限责任公司 | Three synchronism output speed-changing gear boxs |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103851133B (en) | Dual-clutch transmission for motor vehicles | |
| CN202301782U (en) | Front and/rear drive full-gear-position synchronous tractor | |
| CN206647517U (en) | A kind of dual output double speed gear | |
| CN201896932U (en) | Shift control mechanism of steering wheel tractor | |
| US4421335A (en) | Control mechanism for a transmission of a four-wheel drive vehicle | |
| CN101480920A (en) | Four-speed gear shift device of tricycle | |
| CN201246464Y (en) | Tractor shift steering mechanism | |
| CN103291857A (en) | Gearbox of small tractor | |
| CN202360701U (en) | Speed change transmission route for walking and rice transplanting of high-speed rice transplanting machine | |
| CN106740078B (en) | Tractor transmission mechanism | |
| CN105333136B (en) | Wheeled tractor gearbox remote control mechanism | |
| CN209654540U (en) | A kind of walking special gear box of agricultural operation machinery | |
| CN211009760U (en) | Special gearbox for mini-tiller | |
| CN102042399B (en) | Shift control mechanism of steering-wheel tractor | |
| CN210087916U (en) | Double-clutch amphibious reduction gearbox | |
| CN110107657B (en) | Dual-clutch amphibious gearbox and control method thereof | |
| CN202493668U (en) | Back and forth driving steering wheel tractor gear operating device | |
| CN203115082U (en) | Reverser shifting fork | |
| CN102359582A (en) | Front-and-rear-driving steering wheel type tractor gear-shifting operation system | |
| CN202228657U (en) | Front-rear driving steering-wheel type tractor gear engaging operation system | |
| CN203051639U (en) | Transmission system of tractor | |
| CN108262858B (en) | Concrete mixing transport vechicle operating system | |
| CN204004355U (en) | Shift control mechanism of steering-wheel tractor | |
| CN201240264Y (en) | Double differential intensifying rear axle for three-wheel motorcycle or four-wheel motorcycle | |
| CN214465876U (en) | Crawler tractor integrated PTO dual-power conversion box |
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 |
Granted publication date: 20120704 Termination date: 20151012 |
|
| EXPY | Termination of patent right or utility model |