CN2406853Y - Gear and brake of wheel tractor - Google Patents
Gear and brake of wheel tractor Download PDFInfo
- Publication number
- CN2406853Y CN2406853Y CN 99229754 CN99229754U CN2406853Y CN 2406853 Y CN2406853 Y CN 2406853Y CN 99229754 CN99229754 CN 99229754 CN 99229754 U CN99229754 U CN 99229754U CN 2406853 Y CN2406853 Y CN 2406853Y
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- brake
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- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 238000012546 transfer Methods 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000006424 Flood reaction Methods 0.000 description 1
- 210000003050 axon Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000916 dilatatory effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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Abstract
The utility model relates to a speed changing transmission and brake device of a wheel tractor, which is improved on the basis of a traditional hand tractor with 12 horsepower. The utility model has the characteristics of simple structure, small volume, light weight, high ground clearance, small turning radius, and good adaptability for small paddy field. The utility model comprises a clutch shaft, a speed changing box body, a main speed change, an auxiliary speed change, a central transmission and an end transmission, wherein, a driving shaft of the main speed change, which is also used as a power output shaft is coaxially connected with the clutch shaft. A fast gear driving gear is in splined connection with the junction of the two shafts. The central transmission is a straight gear transmission pair. A central transmission central shaft provided with a differential mechanism assembly is coaxially connected with a right differential gear shaft and a left differential gear shaft. The shaft end of the right differential gear shaft and the shaft end of the left differential gear shaft are provided with brakes.
Description
The utility model relates to transmission of a kind of wheel-tire tractor speed change and brake equipment, especially in the traditional 12 horsepowers of walker tractor speed changes transmission and the improvement of brake equipment.
In middle-size and small-size wheel-tire tractor, promptly small four-wheel tractor one cover variable-speed drive volume is bigger, thus also heavy, and no matter brake equipment is that hand-variable transport trolley or wheel-tire tractor all are to establish drg on the axle drive shaft, so drg is bigger.The drg that in addition is contained on the axle drive shaft is overhead nearest in change speed gear box axon system, is difficult for sealing, lacks one side brake, turn radius is big; The operation of the various working of incompatibility paddy field and patch, and, also only be used for hand steered type for the variable-speed drive of 12 horsepowers walker tractor, development potentiality is limited.
The purpose of this utility model provide a kind of on 12 horsepowers of walker tractor variable-speed drive bases transmission of improved wheel-tire tractor speed change and brake equipment, have simple in structurely, the technology inheritance is good, volume is little, in light weight, the crack height, brake operating is light, and adapts to paddy-field-working.
The utility model is that the technical scheme that is adopted that achieves the above object is: transmission of a kind of wheel-tire tractor speed change and brake equipment, has clutch spindle, gearbox body and be contained in the main transformer speed on the gearbox body, secondary speed change, main gear and terminal transmission by supporting member, and be contained in pull-fork assembly on the case lid, it is characterized in that:
A, be contained in clutch spindle on gearbox body and the power-transfer clutch side cover plate and the imput shaft of main transformer speed is the load of the same axis heart by bearing, fast retaining driving gear spline is connected the junction of diaxon, and it is outer as power take-off shaft that the imput shaft of main transformer speed extends to gearbox body;
B, main gear are the straight gear transmission, by being contained in central reducing gear on the pinion carrier, being contained in the differential assembly that the planetary wheel on the pinion carrier constitutes by wheel shaft and being contained on the main gear axle, main gear axle both sides are coaxial respectively to be inserted in the axis hole that circumferentially has straight-toothed left and right differential gear axle, and be free-running fit, the right cone tooth of left and right differential gear shaft end and straight-tooth mesh with planetary wheel and terminal reducing gear respectively, and left and right differential gear axle extends to gearbox body drg is housed respectively outward.
Because wheel-tire tractor speed change of the present utility model transmission and brake equipment are the improvement of 12 horsepowers of walker tractor variable transmission mechanisms of market ripe at home, 12 horsepowers of walker tractor drive clutches have been kept, gearbox body, gear-box axle system arranges, parts such as shift fork are constant, kept original master, secondary speed change, main gear and terminal transmission configuration mode, so former (3+1) * 2 grade speed change class is constant, the technology inheritance is good, be convenient in a small amount of infusion of financial resources, under the prerequisite of equipment, the wheel-tire tractor of batch manufacturing remodeling at short notice, can reduce the manufacturing cost of wheel-tire tractor greatly, enlarge the purposes of former hand steered dilatory speed change transmission.Secondly driving device of the present utility model is cancelled the chain gear of former 12 horsepowers of walker tractors, clutch spindle directly is connected with the same axis of imput shaft of the main transformer speed of double power take-off shaft, and be sleeved on the junction of diaxon with the fast shelves driving gear of double as shift sleeve, realize the smooth transfer of power, simplified drive mechanism, good manufacturability.Again secondly, because the driven shaft in the main gear is that the main gear axle is connected with left and right differential gear axle coaxial inner conductor respectively, this new structure promptly keeps original differential steering transmission agency, and can be implemented on the left and right differential gear axle and arrange drg, directly brake at left and right differential gear axle respectively, reduce the size of turn radius, lock torque and drg, operate light.Simultaneously, also increase drg and ground-surface distance, be convenient to sealing, be applicable to the various working operation in floods and droughts field and fritter field.Compare with former four-wheeled tractor by improving the back, driving device of the present utility model and brake equipment, volume is little, in light weight, and the ground Clearance is big, and turn radius is little, the agronomy comformability is good.
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 the A-A cutaway view of Fig. 1.
Fig. 3 is the structure for amplifying scheme drawing of the utility model differential assembly.
Fig. 4 is a brake device structure scheme drawing of the present utility model.
Shown in Fig. 1～3, wheel-tire tractor speed change of the present utility model transmission and brake equipment, have clutch spindle 25, gearbox body 1 and be contained in the main transformer speed on the gearbox body 1, secondary speed change, main gear and terminal transmission device, and be contained in the pull-fork assembly on the case lid 31 by supporting member.Main transformer speed mainly by main transformer speed imput shaft 5 and be contained in I reverse gearwheel 4 on the axle, soon keep off driving gear 26, reverse gear shaft 3 and be contained in the reverse gear assembly 2 on it, the fast retaining driven gear 24 that is installed on the main shaft 8 constitutes, reverse speed fork 30 is stirred I reverse gear 4 upper edge imput shaft 5 and is moved, and keeps off shift fork 29 soon and stirs fast retaining driven gear 24 and move along main shaft 8.Clutch spindle 25 is contained on gearbox body 1 and the power-transfer clutch side cover plate 27 by bearing, can be illustrated in figure 1 as duplex bearing supported, clutch spindle 25 is same axis load with the imput shaft 5 of main transformer speed, and an end of imput shaft 5 has the coaxial load of the interior assurance of pin-and-hole that locating dowel pin is contained in clutch spindle 25; Also but the axle head of clutch spindle 25 has the coaxial load of the interior assurance of pin-and-hole that locating dowel pin is contained in imput shaft 5.Fast retaining driving gear 26 spline packages are at the junction of diaxon double as shift sleeve, realize the power smooth transfer, it is outer as power take-off shaft that one end of the imput shaft 5 of main transformer speed extends gearbox body 1, denture clutch 6 and hydraulic oil pump etc. can be housed on the power take-off shaft implement other operation.Secondary speed change mainly is made of the secondary variable gear 9 on the reaction gear 7 on main shaft 8 and the axle thereof, secondary variable shaft 10 and the axle thereof, and secondary gear shift fork 28 is stirred secondary variable gear 7 and moved along secondary variable shaft 10.Main gear comprises the main gear driving gear 23 that is contained on the secondary variable shaft 10, differential assembly 22, a main gear axle 11 and a left side, right differential gear axle 12,21 form, main gear is the straight gear transmission, by the central reducing gear 22-8 that is contained on the pinion carrier 22-4, the differential assembly 22 that is contained in the planetary wheel 22-5 formation on the pinion carrier 22-4 by wheel shaft 22-6 is contained on the main gear axle 11, coaxial respectively being inserted in main gear axle 11 both sides circumferentially has a straight-toothed left side, right differential gear axle 12, in 21 the axis hole and be free-running fit, a left side, right differential gear axle 12,21 end right cone tooth and planetary wheel 22-5 engagement, a left side, right differential gear axle 12,21 straight-tooth be installed in the terminal transmission 15 engagements of the terminal reducing gear on the imput shaft 16, a left side, right differential gear axle 12,21 to extend to gearbox body 1 outer and drg 13 is housed, can reduce lock torque, dwindle brake dimensions, flexible operation, also be convenient to simultaneously sealing, enlarged operating range.Double reduction is adopted in terminal transmission, by terminal transmission imput shaft 16 and be installed in terminal transmission gear 17, the terminal reducing gear 15 on the axle and the driven wheel 18 that is contained on the left and right driving semiaxis 19 is formed, terminal reducing gear 15 and driven wheel 18 can be installed in the left and right half housing in the terminal transmission, also can be arranged on as shown in Figure 1 in the gearbox body 1, and terminal reducing gear 15 and terminal transmission gear 17 are dual gear.
As shown in Figure 1, have good rigidity for guaranteeing left and right differential gear axle 12,21, left and right differential gear axle 12,21 is contained in gearbox body 1 by two bearings respectively and is installed on the side cover plate 14 of gearbox body 1.
For improving the service life of differential assembly, change former rivet connection structure into the assembling connection structure, central reducing gear 22-8 adopts key to be connected with pinion carrier 22-4, as shown in Figure 3, be flat key 22-2 connection, and flat key 22-2 and pinion carrier 22-4 located with bearing pin 22-3.Also can adopt connection modes such as spline.Circlip 22-1 is installed in the annular groove of pinion carrier 22-4 and fits with the end face of central reducing gear 22-8, also is provided with bearing cap shim 22-7 between pinion carrier 22-4 and planetary wheel 22-5.
As Fig. 1, shown in 4, drg 13 of the present utility model is by brake wheel 13-3, be arranged on the brake shoe 13-1 in the brake wheel 13-3, spring 13-2, be contained on the side cover plate 14 and be arranged on the outer brake casing 13-4 of brake wheel 13-3 by sealant or packing seal, and be hinged at the end cap 13-6 that is tightly connected with brake casing 13-4, and the bearing pin 13-5 on the end cap 13-6, the shoe type brake structure that brake camshaft 13-7 constitutes, two brake wheel 13-3 are contained in a left side with flat key or spline respectively, right differential gear axle 12,21 ends, and connect by pressing plate 33 usefulness fasteners.The utility model also can adopt the braking of dry type disc type or wet disc.A left side, right two braking pull bars 34 are respectively by a left side, right two rocking arms 32 are connected with two brake camshaft 13-7, a left side, right two braking pull bars 34, be connected with brake and transmission shaft 38 by two middle levers 35 respectively, by the pedal that fuses, lever, the left side that cover constitutes, right brake pedal assembly 37,36 coaxial being connected on the brake and transmission shaft 38 that is hinged with frame 40, left side brake pedal assembly 37 is connected by bearing pin 41 and brake and transmission shaft 38, right brake pedal assembly 36 is hinged with brake and transmission shaft 38, an and left side, right brake pedal assembly 37,36 pedal place is provided with jam plate 39, when jam plate 39 pins a left side, right-hand tread plate, can realize the emergency braking or the Parking of trac., can realize the trac. one side brake again when opening jam plate 39, turn radius is little, has improved the agronomy comformability of trac. sharply turning ability and the operation of fritter field.
As shown in Figure 1, the utility model is in the engagement of the associated gear on each behind the major and minor gear shift fork of conversion, obtain the gear of (3+1) * 2, and by left and right brake pedal assembly 37,36, brake and transmission shaft 38, middle lever 35 and left and right lever connection 34, rocking arm 32, pulling brake camshaft 13-7 makes brake shoe 13-1 tensioner on brake wheel 13-3, left and right differential gear axle 12,21 is stopped operating, thereby power can't reach and makes trac. stop to travel on the left and right half 19.
Improvement and the exploitation of the utility model in the speed change transmission of former traditional 12 horsepowers of walker tractors, cost is low, instant effect, the technology inheritance is good, and volume is little, and the ground Clearance is big, turn radius is little, is convenient to operation, to optimizing product structure and the development of agricultural machinery and implement plays a driving role.
Claims (8)
1, transmission of a kind of wheel-tire tractor speed change and brake equipment, has clutch spindle (25), gearbox body (1) and be contained in the main transformer speed on the gearbox body (1), secondary speed change, main gear and terminal transmission by supporting member, and be contained in the pull-fork assembly on the case lid (30), it is characterized in that:
A, the imput shaft (5) that is contained in clutch spindle (25) and main transformer speed on gearbox body (1) and the power-transfer clutch side cover plate (27) by bearing are same axis load, fast retaining driving gear (26) spline is connected the junction of diaxon, and it is outer as power take-off shaft that the imput shaft of main transformer speed (5) extends to gearbox body (1);
B, main gear is the straight gear transmission, by the central reducing gear (22-8) that is contained on the pinion carrier (22-4), the differential assembly (22) that is contained in planetary wheel (22-5) formation on the pinion carrier (22-4) by wheel shaft (22-6) is contained on the main gear axle (11), coaxial respectively being inserted in main gear axle (11) both sides circumferentially has a straight-toothed left side, right differential gear axle (12), (21) in the axis hole, and be free-running fit, a left side, right differential gear axle (12), (21) the right cone tooth of end and straight-tooth mesh a left side with planetary wheel (22-5) and terminal reducing gear (15) respectively, right differential gear axle (12), (21) extend to the outer drg (13) that is equipped with respectively of gearbox body (1).
2, wheel-tire tractor speed change according to claim 1 transmission and brake equipment is characterized in that: left and right differential gear axle (12), (21) respectively by two bearings be contained in gearbox body (1) and with gearbox body (1) bonded assembly two side cover plates (14) on.
3, wheel-tire tractor speed change according to claim 1 transmission and brake equipment, it is characterized in that: central reducing gear (22-8) and pinion carrier (22-4) adopt key to be connected, and it is interior and fit with the end face of central reducing gear (22-8) that circlip (22-1) is installed in the annular groove of pinion carrier (22-4).
4, wheel-tire tractor speed change according to claim 3 transmission and brake equipment is characterized in that: central reducing gear (22-8) is connected by flat key (22-2) with pinion carrier (22-4), and locatees with bearing pin (22-3).
5, wheel-tire tractor speed change according to claim 1 and 2 transmission and brake equipment, it is characterized in that: described drg (13) is by brake wheel (13-3), be arranged on the brake shoe (13-1) in the brake wheel (13-3), spring (13-2), sealing is contained in side cover plate (14) and goes up and be arranged on the outer brake casing (13-4) of brake wheel (13-3), and the bearing pin (13-5) on the end cap (13-6) that is tightly connected with brake casing (13-4) of being hinged, the shoe type brake structure that brake camshaft (13-7) constitutes, two brake wheels (13-3) are contained in a left side with key respectively, right differential gear axle (12), (21) end, and connect with fastener by pressing plate (33).
6, wheel-tire tractor speed change according to claim 1 transmission and brake equipment is characterized in that: described drg (13) is dry type or wet disc brake.
7, wheel-tire tractor speed change according to claim 1 transmission and brake equipment, it is characterized in that: the left side of drg (13), right two braking pull bars (34) are respectively by a left side, right two rocking arms (32) are connected with two brake camshafts (13-7), a left side, right two braking pull bars (34), be connected with brake and transmission shaft (38) by two middle levers (35) respectively, by the pedal that fuses, lever, the left side that cover constitutes, right brake pedal assembly (37), (36) coaxial being connected on the brake and transmission shaft (38) that is hinged with frame (40), left side brake pedal assembly (37) is connected by bearing pin (41) and brake and transmission shaft (38), right brake pedal assembly (36) is hinged with brake and transmission shaft (38), and a left side, right brake pedal assembly (37), (36) pedal place is provided with jam plate (39).
8, wheel-tire tractor speed change according to claim 5 transmission and brake equipment, it is characterized in that: the left side of drg (13), right two braking pull bars (34) are respectively by a left side, right two rocking arms (32) are connected with two brake camshafts (13-7), a left side, right two braking pull bars (34), be connected with brake and transmission shaft (38) by two middle levers (35) respectively, by the pedal that fuses, lever, the left side that cover constitutes, right brake pedal assembly (37), (36) coaxial being connected on the brake and transmission shaft (38) that is hinged with frame (40), left side brake pedal assembly (37) is connected by bearing pin (41) and brake and transmission shaft (38), right brake pedal assembly (36) is hinged with brake and transmission shaft (38), and a left side, right brake pedal assembly (37), (36) pedal place is provided with jam plate (39).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229754 CN2406853Y (en) | 1999-10-27 | 1999-10-27 | Gear and brake of wheel tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99229754 CN2406853Y (en) | 1999-10-27 | 1999-10-27 | Gear and brake of wheel tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2406853Y true CN2406853Y (en) | 2000-11-22 |
Family
ID=34018949
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99229754 Expired - Fee Related CN2406853Y (en) | 1999-10-27 | 1999-10-27 | Gear and brake of wheel tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2406853Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381136A (en) * | 2011-08-22 | 2012-03-21 | 广西合浦县惠来宝机械制造有限公司 | Tractor front-driving device with improved safety |
| CN103231701A (en) * | 2013-05-08 | 2013-08-07 | 淄博大力矿山机械有限公司 | Braking system for scraper and application of braking system and braking method |
| CN104696485A (en) * | 2015-03-16 | 2015-06-10 | 宁波兴野拖拉机制造有限公司 | High-ground-clearance transmission case for tractor |
| CN104948677A (en) * | 2014-03-28 | 2015-09-30 | 冯明勋 | Special hand tractor for tail-wheel operating pedal front-loaded hand tractor |
| CN106224529A (en) * | 2016-08-30 | 2016-12-14 | 兴化东华齿轮有限公司 | A kind of farm machine gearbox of improvement |
| CN108340776A (en) * | 2018-03-02 | 2018-07-31 | 第拖拉机股份有限公司 | A kind of power train rear cabinet for paddy field type crawler tractor |
| CN109282018A (en) * | 2018-11-30 | 2019-01-29 | 江苏沃得农业机械配件制造有限公司 | A combined wheel-axle gearbox |
-
1999
- 1999-10-27 CN CN 99229754 patent/CN2406853Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381136A (en) * | 2011-08-22 | 2012-03-21 | 广西合浦县惠来宝机械制造有限公司 | Tractor front-driving device with improved safety |
| CN103231701A (en) * | 2013-05-08 | 2013-08-07 | 淄博大力矿山机械有限公司 | Braking system for scraper and application of braking system and braking method |
| CN104948677A (en) * | 2014-03-28 | 2015-09-30 | 冯明勋 | Special hand tractor for tail-wheel operating pedal front-loaded hand tractor |
| CN104696485A (en) * | 2015-03-16 | 2015-06-10 | 宁波兴野拖拉机制造有限公司 | High-ground-clearance transmission case for tractor |
| CN104696485B (en) * | 2015-03-16 | 2019-01-08 | 宁波兴野拖拉机制造有限公司 | A kind of high-clearance transmission case of used with tractor |
| CN106224529A (en) * | 2016-08-30 | 2016-12-14 | 兴化东华齿轮有限公司 | A kind of farm machine gearbox of improvement |
| CN108340776A (en) * | 2018-03-02 | 2018-07-31 | 第拖拉机股份有限公司 | A kind of power train rear cabinet for paddy field type crawler tractor |
| CN108340776B (en) * | 2018-03-02 | 2023-09-19 | 第一拖拉机股份有限公司 | A drive train rear box for paddy field type crawler tractor |
| CN109282018A (en) * | 2018-11-30 | 2019-01-29 | 江苏沃得农业机械配件制造有限公司 | A combined wheel-axle gearbox |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |