Dipper link with lift hook
A bucket and hook technology, which is applied in the field of bucket connecting rods, can solve the problems that the second pin becomes larger, and it is difficult to pull out or insert the fixed pin, so as to improve the welding strength and facilitate the welding operation
Inactive Publication Date: 2004-10-20
KOMATSU LTD
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Problems solved by technology
However, when using a hook with a large suspended load, this second pin must be enlarged with the increase of the fixed pin
Also, the fixing pin must be applied as tightly as possible to the pin bearing plate to prevent backlash by blocking the axial movement of the fixing pin and not easily pull out or insert the fixing pin against the elasticity of the second pin
Method used
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[0029] A preferred embodiment of the present invention will be described in detail below according to the accompanying drawings.
[0030] Figure 1 to Figure 6 A representative embodiment of the present invention is shown.figure 1 is an external view schematically showing an example of a working machine of a hydraulic excavator with a hook, figure 2 It is a partially enlarged cross-sectional view showing a state in which the hook is housed in the bucket link of the work machine, a part of which is omitted, image 3 is along figure 2 A partial cross-sectional view taken along line III-III, Figure 4 is along figure 2 A partial cross-sectional view cut along line IV-IV, Figure 5 is a partial perspective view of the bucket linkage, Figure 6 is along image 3 Partial enlarged view in direction C in .
[0031] exist figure 1 In , reference numeral 1 denotes a working machine of a hydraulic excavator (not shown). The hydraulic excavator includes a moving body, a rotati...
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The prevent invention provides a bucket link having a hoist hook attaining safety of excavation, transport and crane work, improve durability by ensuring strength in a simple and weight lightened structure, additionally to be capable of operating the hoist hook easily mounted / removed and surely fixed to a storage position. This bucket link 10 has a pair of right / left side parts 17, 17 and a sheet of bottom part 18 partitioning a hoist hook receiving space 19. The side part 17 is extended in spread out shape from a side of a first boss 20 on the cylinder side toward the side of a second boss 21 on the bucket side, the bottom part 18 is extended almost horizontally from the peripheral edge intermediate of the first boss 20 on the cylinder side toward the peripheral edge lower end of the second boss 21 on the bucket side, in addition by providing to protrude in the bottom part 18 a reinforce plate 34, 35 reinforcing an opening peripheral part of a first cutout part 32 on the cylinder side and an opening peripheral part of a second cutout 33 on the bucket side, strength against tensile stress and compression stress can be ensured, additionally even strength against torsional stress can be enhanced, further with the bucket link 10 obtained lightening weight and providing a high quality.
Description
technical field [0001] The present invention relates to a bucket link with a hook, and more specifically relates to a bucket link designed for digging, transporting or lifting operations, improving durability, and facilitating hook assembly / disassembly operations, This prevents the bucket linkage from falling off the hook. Background technique [0002] At present, there are already hydraulic excavators that can perform lifting operations in addition to operations such as sand excavation or transportation. An example of a hydraulic excavator having such a lifting function is disclosed in Japanese Patent Publication No. 2000-95475 and No. 2000-95476. The hydraulic excavators disclosed in these two publications each include a mobile body, a rotary body rotatably mounted on the mobile body about a vertical axis, and a working machine mounted on the rotary body. [0003] The work machine has: a main boom, which is vertically moved by a main boom hydraulic cylinder connected to ...
Claims
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IPC IPC(8): E02F3/36B66CB66C1/36B66C1/68E02F3/38E02F3/40
CPCE02F3/32E02F3/42
Inventor 西村悟西武明永原拓巳
Owner KOMATSU LTD