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Quick connector

A connector and fast technology, used in construction, mechanically driven excavators/dredgers, earth movers/shovels, etc., can solve the problems of large force required, complex structure, easy loss of safety pins, etc. Achieve the effect of preventing loss and simple structure

Pending Publication Date: 2022-07-29
XCMG EXCAVATOR MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The problem with existing quick connectors is that the movable claw is on the inside, and when the movable claw hooks the rear axle of the machine tool from the inside to the outside, for operating devices with equal shaft spacing, it may also be caused by the difference in height of the middle bending plate. The interference of the claw makes the quick connector unable to work
The mechanical quick connector has high requirements on the spring, the structure is more complex, the force required to rotate the spring end knob is relatively large, the operation is more complicated, and the safety pin is easy to lose

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] like Figure 1-Figure 4 The shown mechanical quick connector includes a cavity 1, and the top of the cavity 1 is provided with a connecting shaft 1 2 and a connecting shaft 2 3, which are respectively used to realize the quick connector and the bucket rod and connecting rod of the working device. One end of the bottom of the cavity 1 is provided with a fixed hook 11 for hooking the front axle 7 of the machine tool, and the other end of the bottom of the cavity 1 is provided with a clamping opening 14, and the clamping opening 14 is provided with a clamping opening. 14 Rotating movable hook 4.

[0035] like figure 2 As shown, the cavity 1 above the jaw 14 is provided with a rail 12, and the cavity 1 above the rail 12 is provided with a fixing hole 13 for positioning the movable hook 4 on the cavity 1 through the safety pin 5 .

[0036] like image 3 As shown, the movable hook 4 is a wrench type, including a handle bar 41 and hook claws 44 . The hook 44 is provided w...

Embodiment 2

[0039] like Figure 5-Figure 8The shown hydraulic quick connector includes a cavity 1, and the top of the cavity 1 is provided with a connecting shaft 1 2 and a connecting shaft 2 3, which are respectively used to realize the quick connector and the bucket rod and connecting rod of the working device. One end of the bottom of the cavity 1 is provided with a fixed hook 11 for hooking the front axle 7 of the machine tool, and the other end of the bottom of the cavity 1 is provided with a clamping opening 14, and the clamping opening 14 is provided with a clamping opening. 14 The rotating movable hook 4, the cavity 1 is also provided with an oil cylinder 6 for driving the movable hook 4 to reciprocate.

[0040] like Image 6 As shown, the cavity 1 above the jaw 14 is provided with a rail 12, the cavity 1 above the rail 12 is provided with a fixing hole 13 for placing the safety pin 5, and the cavity 1 is close to the fixing hook 11. One side is provided with an installation sha...

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Abstract

The quick connector comprises a cavity, a connecting shaft connected with a working device is arranged at the top of the cavity, a fixed hook claw is arranged at one end of the bottom of the cavity, a clamping opening is formed in the other end of the bottom of the cavity, and a movable hook claw rotating around the clamping opening is arranged at the clamping opening. The cavity and the movable hook claw are connected in a sliding mode through track structures which are meshed with each other, and the movable hook claw is positioned on the cavity through a safety pin. According to the quick connector, the movable hook claw slides in a reciprocating mode through rail structures which slide in a mutually-meshed mode, hooking and releasing of a machine tool are achieved, the structure is simple, labor is saved, reliability is achieved, the rear shaft of the machine tool serves as a rotating shaft in the sliding process, large-amplitude reciprocating swing is not needed, and operation is convenient. The axis along which the movable claw slides in a reciprocating mode coincides with the axis of a rear shaft of a machine tool to be hooked, interference with the machine tool is avoided, and when the machine tool shaft is hooked and released, the safety pin is always in an inserted state and is prevented from being lost.

Description

technical field [0001] The invention belongs to the technical field of construction machinery excavators, and more particularly relates to a quick connector for construction machinery. Background technique [0002] With the increasingly high requirements for diversified operations of excavators, quick connectors are more widely used. The quick switching and installation of the working device saves the waste of time and manpower caused by replacing the attachment and disassembling the pin shaft, and improves the work efficiency. At present, small tonnage excavators mostly use mechanical quick connectors. [0003] At present, the common mechanical quick connector adopts the spring lock tongue type, and the spring force is used to replace the driving force of the oil cylinder. Push the movable hook to a suitable position by tightening or loosening the spring to hook the implement shaft. During the working process of the mechanical quick connector, the spring force always pus...

Claims

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Application Information

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IPC IPC(8): E02F3/96E02F9/00
CPCE02F3/96E02F9/00
Inventor 历娜石硕王金涛王全永
Owner XCMG EXCAVATOR MACHINERY