CN201095385Y - Three-wheel hand tractor - Google Patents
Three-wheel hand tractor Download PDFInfo
- Publication number
- CN201095385Y CN201095385Y CNU2007201293912U CN200720129391U CN201095385Y CN 201095385 Y CN201095385 Y CN 201095385Y CN U2007201293912 U CNU2007201293912 U CN U2007201293912U CN 200720129391 U CN200720129391 U CN 200720129391U CN 201095385 Y CN201095385 Y CN 201095385Y
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- Prior art keywords
- wheel
- walking
- tractor
- frame
- support
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- 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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- 229910000831 Steel Inorganic materials 0.000 claims description 8
- 239000010959 steel Substances 0.000 claims description 8
- 230000000694 effects Effects 0.000 abstract description 6
- 230000005484 gravity Effects 0.000 abstract description 3
- 238000003971 tillage Methods 0.000 abstract description 3
- 230000009977 dual effect Effects 0.000 abstract 3
- 238000000034 method Methods 0.000 abstract 1
- 239000002689 soil Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000009331 sowing Methods 0.000 description 1
- 230000003319 supportive effect Effects 0.000 description 1
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- Soil Working Implements (AREA)
Abstract
The utility model relates to a walking tractor, in particular to a three-wheeled walking tractor which can realize the alternate operation of a dual wheel walking way and a three-wheel walking way. The three-wheeled walking tractor comprises an engine (1), a clutch (2), a gear box (3), an arm rest (4), a main traveling wheel (6), a rack (7), and a front wheel supporting frame (8). The utility model is characterized in that an auxiliary traveling wheel (9) is arranged at the lower part at the front end of the rack (7), and a plow hitching device (10) is arranged in the middle part of the rack (7). The three-wheeled walking tractor can realize the alternate operation of the dual wheel walking way and the three-wheel walking way, during the process of the ploughing operation, the plow hitching device is arranged at the middle part of the rack, the plow share generates weight increment effect to the tractor body to ensure the center of gravity of the entire tractor to be moved forward, and the three-wheel walking way can be selected to realize the stability of the tractor body. The utility model can select the dual wheel walking way during the transportation and the rotary tillage, and is just like a traditional walking tractor.
Description
Technical field
The utility model relates to a kind of walker tractor, more specifically to a kind of three-wheel walker tractor that can realize that two-wheel and two kinds of walking manners of three-wheel are used alternatingly.
Background technology
What existing walker tractor adopted is two-wheel driven traveling mechanism, though this mode can satisfy several work requirements such as haul, sowing, rotary tillage, but exist not enough when being used for the farmland cultivation operation: first, because the stability factor of fore-and-aft direction, ploughshare generally adopts hard connecting mode, so the walking that causes complete machine also can only the straight line walking, and is dumb, in plot in irregular shape and two, plot plough unclean.The second, a tire is walked at uncultivated land during ploughing, and another tire is walked in the ditch dug with a plow of ploughing, causes fuselage to tilt, and grading operation is all right, then is difficult to adapt to when landform itself has the gradient.The 3rd, the tire of walking rolls repeatedly to raw soil layer in the ditch dug with a plow, makes to become more and more harder below the mellow soil layer, is unfavorable for retaining and conserveing soil moisture.The 4th, be subjected to the requirement of tractive force to fuselage weight, the fuselage that needs during operation is heavy, horsepower is big, and oil consumption is many as a result, operation is required great effort, inconvenience.Utility model patent specification sheets CN2827824 disclosed three wheeled walker tractors, though overcome above-mentioned deficiency, owing to connect transmission by chain between the wheel shaft of front and back, its front-wheel can not turn to, and causes complete machine direction when three-wheel is walked ineffective.Ploughshare articulates a little at afterbody in addition, cause complete machine when farming center of gravity partially after, and ploughshare occupies too many space below the handrail, is unfavorable for that the operator decontrols foot traffic.
The utility model content
The technical problems to be solved in the utility model provides a kind of three-wheel walker tractor, install the secondary row travelling wheel of a dismounting at any time additional in the front lower place on existing walker tractor chassis, this is taken turns and can arbitrarily rotate in the horizontal direction, makes complete machine can the balance when using require to choose at random the three-wheel walker tractor of two-wheel, two kinds of walking manners of three-wheel.
For solving the problems of the technologies described above, the utility model comprises driving engine, power-transfer clutch, change speed gear box, handrail, main road wheel, frame and front-wheel support, be characterized in: the front end bottom in frame is provided with the secondary row travelling wheel by front-wheel support, at the middle part of frame, promptly be provided with the plough hanging device between the front and back wheel.Front-wheel support is made up of permanent seat, ball, stay fork, is equipped with the ball position-limited trough on stay fork and permanent seat, and ball is housed in the groove, and stay fork is connected by axle with permanent seat, is fixed by nut.Permanent seat is fixed on the frame.Auxiliary live axle is housed on the stay fork, on its axle the secondary row travelling wheel is housed.The plough hanging device is made up of support, channel-section steel and bolt, and channel-section steel is articulated on the bolt, and bolt is fixed on the support by two nuts, and support is fixed on the frame.
The utility model can realize that two-wheel running and three-wheel walking are used alternatingly, when being engaged in cultivation operation, the ad hoc plough hanging device at the middle part of frame can make ploughshare that fuselage is produced gaining effect and makes the machine gravity reach, can select the three-wheel walking manner for use, to realize the stability of fuselage.And when being engaged in operations such as transportation, rotary tillage, can select the two-wheel running mode, as traditional walker tractor.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is the utility model three-wheel walker tractor structural representation;
Fig. 2 is the mounting structure scheme drawing of the secondary row travelling wheel 9 in the utility model;
Fig. 3 is the structural representation of the plough hanging device 10 in the utility model.
The specific embodiment
In Fig. 1,2,3: driving engine 1 and change speed gear box 3 all are fixed on the frame 7, and driving engine 1 outputting power passes to change speed gear box 3 through power-transfer clutch 2.Change speed gear box 3 left and right sides are drawn power take-off shaft 5 respectively, at the two ends of output shaft 5 main road wheel 6 are housed respectively, and main road wheel 6 and output shaft 5 are fixed by flange connection, and can move freely the location vertically, make the wheelspan of two main road wheels 6 adjustable.Change speed gear box 3 is installed in the rear end of frame 7, and handrail 4 is equipped with at the top of change speed gear box 3, and its afterbody articulates mouth 17.Front end bottom in frame 7 is provided with secondary row travelling wheel 9 by front-wheel support 8, front-wheel support 8 is made up of permanent seat 11, ball 12, stay fork 13, axle 18 and nut, on stay fork 13 and permanent seat 11, be equipped with the ball position-limited trough, ball 12 is housed in the groove, connect by axle 18 then, fix by nut.Permanent seat 11 is fixed on the frame 7.Auxiliary live axle is housed on the stay fork 13, on its axle secondary row travelling wheel 9 is housed, fix by nut.The diameter of secondary row travelling wheel 9 is less than the diameter of main road wheel 6, and its effect is: play a supportive role when parking and three-wheel walking, make complete machine flexible at fore-and-aft direction balance and stability and direction.Middle part in frame 7, be to be provided with plough hanging device 10 between the front and back wheel, plough hanging device 10 is made up of support 14, channel-section steel 16 and bolt 15, channel-section steel 16 is articulated on the bolt 15, bolt 15 is fixed on the support 14 by two nuts, and support 14 is the H type, is fixed on the frame 7, its effect is: make bolt 15 adjust height up and down by turning nut, channel-section steel 16 serves as that axle freely rotates with bolt 15.The both sides of channel-section steel 16 are provided with standby hole 20, and its effect is: be used to articulate work implements such as ploughshare.
In sum: the utility model three-wheel walker tractor, by front-wheel support 8 secondary row travelling wheel 9 is housed in the front end bottom of frame 7, secondary row travelling wheel 9 is a flower wheel, its diameter is less than main road wheel 6, and can freely rotate in the horizontal direction.Be provided with plough hanging device 10 at the middle part of frame 7, adopted active connection mode, behind the equipped special-purpose ploughshare, during operation ploughshare can about, the left and right directions free motion, thereby keep the stability of tilling depth and tilling width automatically, and trac. integral body is produced from gaining effect when plowing.
Claims (3)
1, a kind of three-wheel walker tractor comprises driving engine (1), power-transfer clutch (2), change speed gear box (3), handrail (4), main road wheel (6), frame (7) and front-wheel support (8), it is characterized in that:
A, be provided with secondary row travelling wheel (9) by front-wheel support (8) in the front end bottom of frame (7);
B, be provided with plough hanging device (10) at the middle part of frame (7).
2, three-wheel walker tractor according to claim 1 is characterized in that: front-wheel support (8) is made up of permanent seat (11), ball (12), stay fork (13), axle (18) and nut; On stay fork (13) and permanent seat (11), be equipped with the ball position-limited trough, ball (12) is housed in the groove; Stay fork (13) is connected by axle (18) with permanent seat (11), is fixed by nut; Permanent seat (11) is fixed on the frame (7); Stay fork is equipped with auxiliary live axle on (13), on its axle secondary row travelling wheel (9) is housed.
3, three-wheel walker tractor according to claim 1, it is characterized in that: plough hanging device (10) is made up of support (14), channel-section steel (16) and bolt (15), channel-section steel (16) is articulated on the bolt (15), bolt (15) is fixed on the support (14) by two nuts (19), and support (14) is fixed on the frame (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201293912U CN201095385Y (en) | 2007-09-29 | 2007-09-29 | Three-wheel hand tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201293912U CN201095385Y (en) | 2007-09-29 | 2007-09-29 | Three-wheel hand tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201095385Y true CN201095385Y (en) | 2008-08-06 |
Family
ID=39922444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201293912U Expired - Fee Related CN201095385Y (en) | 2007-09-29 | 2007-09-29 | Three-wheel hand tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201095385Y (en) |
-
2007
- 2007-09-29 CN CNU2007201293912U patent/CN201095385Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080806 Termination date: 20120929 |