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Improved hydraulic coupling devices and assemblies

A technology for connecting devices and connecting components, applied in the direction of hose connecting devices, pipes/pipe joints/fittings, couplings, etc., can solve the problems of O-ring leakage, waste, rupture, etc.

Inactive Publication Date: 2021-03-26
CATERPILLAR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Frictional wear can cause O-rings to leak and / or rupture, and the entire hose assembly may need to be replaced
This in turn leads to machine downtime and waste
Additionally, once positioned in the swivel coupling, the O-rings become inaccessible for inspection and / or replacement

Method used

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  • Improved hydraulic coupling devices and assemblies
  • Improved hydraulic coupling devices and assemblies
  • Improved hydraulic coupling devices and assemblies

Examples

Experimental program
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Embodiment Construction

[0013] The present invention relates to coupling devices and coupling assemblies. Couplings are generally applicable to any machine utilizing fluid power transmission. The term "machine" may refer to any machine that performs operations associated with an industry such as mining, construction, agriculture, transportation, robotics, or any other industry. As some examples, the machine may be a vehicle (e.g., automobile, truck, boat, helicopter, airplane, etc.), robotic machine, backhoe loader, cold planer, wheel loader, compactor, paving machine, forestry machine, Transport machinery, harvesters, excavators, industrial loaders, tractors, bulldozers, or other types of mining, construction, agricultural, robotic, and / or transport equipment.

[0014] figure 1 is a drawing of an exemplary coupling arrangement specified generally. In some implementations, coupling device 100 is configured to couple (eg, bond, connect, attach, etc.) to an accessory (see, eg, Figure 4 302), where...

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PUM

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Abstract

A coupling device (100) is provided. The coupling device may include a stem (102) having a first end (104), a second end (106), a groove (124), and a threaded portion (120). A first engagement member(112) may be disposed over the stem between the first end and second end. The first engagement member may be movable relative to the stem. An inner sealing member (110) may be disposed in the groove.When the first engagement member (112) is in a first position, the inner sealing member (110) may be retained in the groove (124), seal against a surface of the stem, and may not be removed. When thefirst engagement member (112) is in a second position, the inner sealing member (110) may be retained in the groove, does not seal against the surface of the stem, and may be removed. The coupling device may include a washer (116), an outer sealing member (114), and a second engagement member (118) disposed over the stem.

Description

technical field [0001] The present invention relates generally to a coupling device included in a coupling assembly, and more particularly to a male hydraulic coupling device included in a hydraulic coupling assembly, the male hydraulic coupling device having improved sealing and sealing member availability . Background technique [0002] Rotary couplings facilitate rotational connections between various types of components in machines, such as between hoses and valves, pumps, motors, and / or the like. Rotary couplings typically incorporate one or more mechanical gaskets (eg, O-rings) for sealing surfaces between opposing components and preventing leakage. During use, when one or more components rotate relative to another, O-rings may experience frictional wear due to the movement of the rotating components relative to the non-rotating components. Frictional wear can cause O-rings to leak and / or crack, and the entire hose assembly may need to be replaced. This in turn lead...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L27/08F16L33/207
CPCF16L27/0816F16L33/2073F16C2361/41F16L27/0832F16L27/087F16L33/20F16L37/32
Inventor B·菲克尔
Owner CATERPILLAR INC