Unlock instant, AI-driven research and patent intelligence for your innovation.

A sensor protection device, oil cylinder and engineering machinery

A technology of sensors and oil cylinders, applied in the direction of fluid pressure actuators, etc.

Active Publication Date: 2017-10-13
SANY HEAVY IND CO LTD (CN)
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These two problems are particularly prominent on long-stroke hydraulic cylinders

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A sensor protection device, oil cylinder and engineering machinery

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0026] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0027] Such as figure 1 The shown oil cylinder includes a cylinder barrel, a piston 8 and a piston rod 7 arranged in the cylinder barrel, one end of the piston rod 7 is fixed to the piston 8, and a cylinder head 1 is arranged at the left end of the cylinder barrel, and the cylinder head 1 is fixedly arranged on the cylinder. On the barrel, the fixing method between the cylinder barrel and the cylinder head 1 can be welding or bolt connection. For the convenience of disassembly, it is preferably fixed by bolt connection.

[0028] A sensor 2 is provided on the cylinder head 1, and the sensor 2 is specifically a displacement sensor. The sensor 2 includes a sensor guide rod 4. The sensor guide rod 4...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The present invention proposes a sensor protection device, which is used to protect the sensor. The sensor includes a sensor guide rod. The sensor protection device includes a pipe sleeve fixed at one end of the sensor. tube, and the sensor guide rod can move back and forth in the protection tube. On the other hand, the present invention also proposes an oil cylinder, including a cylinder barrel and a piston in the cylinder barrel, a cylinder head is provided at one end of the cylinder barrel, a sensor and a sensor protection device are arranged on the cylinder head, and the sensor protection The device is a sensor protection device as described above. The oil cylinder with this structure is specially equipped with a protection device to protect the displacement sensor, and the sensor guide rod can avoid direct contact and friction with the inner cavity of the piston rod, so the service life of the sensor can be effectively extended. Finally, the present invention also proposes a construction machine including the above-mentioned sensor protection device or oil cylinder.

Description

technical field [0001] The invention relates to the field of construction machinery, in particular to a sensor protection device, an oil cylinder and construction machinery. Background technique [0002] The oil cylinder is a more commonly used actuator in the hydraulic system, and can be divided into a piston cylinder and a plunger cylinder according to its structure. In order to accurately control the movement of the hydraulic cylinder, the stroke of the hydraulic cylinder must be detected. Whether it is a piston cylinder or a plunger cylinder, the most commonly used is the external stroke detection structure, that is, the stroke detection device is installed outside the hydraulic cylinder. The disadvantage of this structure is that it is easily damaged by collision; if it is exposed for a long time, the detection accuracy will decrease due to dust, etc., and the sensitivity and accuracy will decrease. [0003] At present, there are more and more built-in sensor structure...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/20
Inventor 吴仁武姚立波
Owner SANY HEAVY IND CO LTD (CN)
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com