Working machine lifting device of tractor
A technology of operating machinery and lifting devices, which is applied to the lifting devices of agricultural machinery, agricultural machinery and implements, and adjustment devices. It can solve problems such as difficult removal of foreign objects, and achieve the effects of increasing degrees of freedom, reducing costs, and simplifying processing.
Inactive Publication Date: 2005-02-09
YANMAR CO LTD
View PDF1 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0010] However, because the disclosed cylinder cover is fixed on the bracket formed on the upper end of the piston rod of the external lifting cylinder, the hydraulic cylinder itself needs to be processed, and the general hydraulic cylinder cannot be used as an external lifting cylinder.
[0011] In addition, no matter how the cylinder cover is used, soil and sand may intrude between the cylinder and the cylinder cover. The disclosed cylinder cover is shaped along the rear, left and right outer peripheral surfaces of the cylinder. Between the cylinder cover and the cylinder, it is difficult to remove foreign matter
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0047] First, regarding the tractor 100 having the working machine lifting device 1 as the first embodiment of the working machine lifting device of the present invention, using Figure 1 to Figure 4 Be explained.
[0048] like figure 1 As shown, through the front axle box, the front wheels 102·102 are supported on the engine frame 101 of the tractor 100, through the clutch housing, the transmission case 4 is arranged at the rear of the engine frame 101, through the rear axle box 10, the left and right The rear wheels 103·103 are supported on both sides of the transmission case 4 . The working machine 120 can be attached to the rear of the transmission case 4 by a three-point support device (three-point link type work machine mounting device) composed of the upper link 50, a pair of left and right lower links 13·13, and the like. In addition, in the front lower part of the transmission case 4, the front wheel drive output shaft protrudes forward, and the left and right fron...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A working machine lifting device (1) of a tractor (100), comprising externally installed hydraulic lift cylinders (2, 2) disposed on the right and left sides of a transmission casing (4), lift arms (5, 5) rotated by the operation of the cylinders, and lower links (13) vertically rotated by the rotation of the lift arms and connected to a working machine (120), wherein the cylinder (2) and the lower link (13) are rotatably supported on a same pin (8) supported by the transmission casing (4) and a sway chain bracket (11), and the support point of the cylinder (2) and the vertical rotating pivot of the lower link (13) are positioned on the axis of the pin (8).
Description
technical field [0001] The present invention relates to the structure of a working machine lifting device arranged at the rear of a tractor body, and particularly relates to a structure in which a hydraulic cylinder as an actuator for working machine lifting is an external device. Background technique [0002] In the past, in working vehicles such as tractors, the working machine is usually installed at the rear of the machine body through a working machine mounting device. The working machine mounting device is composed of an upper link and a pair of left and right lower links. The work machine mounting device includes a work machine elevating device for raising and lowering the work machine by operating an actuator such as a hydraulic cylinder. [0003] The hydraulic actuator is composed of a hydraulic cylinder (lift cylinder) built into a housing placed on the transmission case, etc., and the piston rod of the lift cylinder is connected to the lower left and right sides b...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): A01B59/06
CPCA01B59/068
Inventor 越智知文矶贝孝幸林惠一
Owner YANMAR CO LTD