Half-hidden movable holding claw hydraulic tongs based on spatial four-bar mechanism

A four-bar mechanism and semi-hidden technology, applied in the fields of earthquake resistance and disaster reduction, mechanical design, and hydraulic control, can solve problems such as difficult manufacturing, inconvenient operation, and high cost, and achieve the effect of high integration and simple structure

Active Publication Date: 2020-08-11
BEIJING UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This scheme has disadvantages such as inconvenient operation, difficult manufacture, and high cost.

Method used

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  • Half-hidden movable holding claw hydraulic tongs based on spatial four-bar mechanism
  • Half-hidden movable holding claw hydraulic tongs based on spatial four-bar mechanism
  • Half-hidden movable holding claw hydraulic tongs based on spatial four-bar mechanism

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specific Embodiment approach

[0039] Such as Figure 4 , Figure 8 As shown, the configuration of the attachment claw (3) in the crushing and grasping state, the functional hydraulic cylinder (9) from Figure 4 The contraction state when becomes Figure 8 When the extended state is reached, the transformation from the pincer cutting state to the grasping state is realized. Such as Figure 4 , Figure 5 As shown, when the pincers are crushed, the functional hydraulic cylinder (9) shrinks, the positioning guide sleeve (4) is in the long linear groove of the space curved groove of the cylindrical cam (5), and the holding claw (3) is not stressed and half hidden In the cavity of the scissors base (8), the thickness of the scissors base (8) is smaller than the thickness in the holding state, reducing the interference of the claws (3) on the scissors process. Such as Figure 8 , Figure 9 As shown, during the grasping process, the functional hydraulic cylinder (9) is stretched out, the positioning guide s...

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Abstract

The invention discloses a pair of half-hidden movable holding claw hydraulic tongs based on a spatial four-bar mechanism, and belongs to the field of multifunctional engineering accessories. The pairof half-hidden movable holding claw hydraulic tongs based on the spatial four-bar mechanism comprises a machine frame (1), two working hydraulic cylinders (2), four holding claws (3), four locating guide sleeves (4), four cylindrical cams (5), four movement conversion sliding blocks (6), four functional connecting rods (7), two tongs shear bases (8) and two functional hydraulic cylinders (9). Thepair of half-hidden movable holding claw hydraulic tongs based on the spatial four-bar mechanism is high in integration level and simple in structure, the purpose that the breaking function, the shearing function and the holding claw function are fulfilled in the mode that only one engineering accessory is adopted is achieved, and a labor-saving structure of an existing pair of hydraulic breakingtongs is reserved; and the conversion of a tongs shear device and a holding claw device can be rapidly accomplished by the spatial four-bar mechanism, the working requirements are met in the various working states, and the movement interference does not happen.

Description

technical field [0001] The invention relates to the technical fields of mechanical design, hydraulic control, and earthquake resistance and disaster reduction, and specifically belongs to multifunctional engineering attachments. Background technique [0002] In recent years, earthquake disasters have occurred frequently, and national economic construction and people's life and property safety have been damaged and lost. Therefore, it is of great significance to use efficient post-earthquake disaster relief equipment for rescue and relief work in disaster areas. Referring to the current earthquake relief and rescue, it can be seen that hydraulic pliers and hydraulic grippers have played an important role in the demolition and cleaning work of disaster relief, so the realization of one machine with multiple functions is extremely important for post-disaster demolition work or economic construction. practical significance. At present, the structure adopted to realize multi-fu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B25J15/08B02C1/06B21F11/00
CPCB25J15/08B02C1/06B02C1/005B21F11/00
Inventor 赵京周振勇张自强
Owner BEIJING UNIV OF TECH
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