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Semi-hidden movable claw hydraulic pliers based on spatial four-bar mechanism

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

Active Publication Date: 2022-06-21
BEIJING UNIV OF TECH
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  • Summary
  • 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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  • Semi-hidden movable claw hydraulic pliers based on spatial four-bar mechanism
  • Semi-hidden movable claw hydraulic pliers based on spatial four-bar mechanism
  • Semi-hidden movable claw hydraulic pliers based on spatial four-bar mechanism

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specific Embodiment approach

[0039] like Figure 4 , Figure 8 As shown in the figure, the configuration of the attachment gripper (3) in the broken and gripped state, the functional hydraulic cylinder (9) is changed from Figure 4 when the contraction state becomes Figure 8 The extended state at the time of realization realizes the conversion from the clamp-to-scissor state to the hold-to-grab state. like Figure 4 , Figure 5 As shown in the figure, in the crushing state, the functional hydraulic cylinder (9) shrinks, the positioning guide sleeve (4) is in the long straight groove of the space curve groove of the cylindrical cam (5), and the claw (3) is not stressed and half hidden In the cavity of the pliers and scissors base (8), the thickness of the pliers and scissors base (8) is smaller than the thickness in the grasping state, so as to reduce the interference of the claw (3) on the pliers-cutting process. like Figure 8 , Figure 9 As shown in the figure, during the grasping process, the f...

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Abstract

The utility model relates to a semi-hidden movable claw hydraulic tong based on a space four-bar mechanism, which belongs to a multifunctional engineering attachment. It includes a frame (1), two working hydraulic cylinders (2), four claws (3), four positioning guide sleeves (4), four cylindrical cams (5), and four motion conversion sliders ( 6), four functional connecting rods (7), two scissor bases (8), and two functional hydraulic cylinders (9); the present invention has a high degree of integration and a simple structure, and only one engineering attachment is used to realize Crushing, cutting and grasping functions, and retain the labor-saving structure of the original hydraulic breaker; through the space four-bar mechanism, the conversion between the clamping device and the grasping device can be quickly completed, and the work requirements can be met under various working conditions. No motion interference occurred.

Description

technical field [0001] The invention relates to the technical fields of mechanical design, hydraulic control, and earthquake resistance and disaster reduction, in particular to a multifunctional engineering attachment. Background technique [0002] In recent years, earthquake disasters have occurred frequently, and national economic construction and the safety of people's lives and properties have been damaged and lost. Therefore, it is of great significance to use efficient post-earthquake relief equipment to carry out rescue and relief work in disaster areas. With reference to the current earthquake and disaster relief work, it can be seen that hydraulic pliers and hydraulic grippers have played an important role in the demolition and clean-up work of emergency rescue and disaster relief. Therefore, the realization of multiple uses of one machine is extremely important for post-disaster demolition work or economic construction. realistic meaning. At present, the structur...

Claims

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Application Information

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Patent Type & Authority Patents(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