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Wheel type crane and centre revolving joint thereof

A center rotary joint, rotary body technology, applied in the direction of connection, rotary current collector, current collector, etc., can solve the problem of difficult processing of rotary body, to ensure work reliability and safety, improve sealing effect, prevent leakage flow effect

Inactive Publication Date: 2013-09-11
XUZHOU HEAVY MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of the above-mentioned defects, the core purpose of the present invention is to provide a central rotary joint to solve the problem that the rotary body is difficult to process in the prior art

Method used

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  • Wheel type crane and centre revolving joint thereof
  • Wheel type crane and centre revolving joint thereof
  • Wheel type crane and centre revolving joint thereof

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Embodiment Construction

[0034] The core of the present invention is to provide a central rotary joint. By setting the rotary body of the central rotary joint separately, and then splicing them into a rotary body that meets the size requirements of the long central rotary joint through segmental processing of ordinary machine tools, the weight of the rotary body is reduced. Processing difficulty, thereby reducing the overall manufacturing cost of the central rotary joint and shortening its manufacturing cost. On this basis, the present invention also provides a wheeled crane including the above-mentioned central swivel joint.

[0035] Without loss of generality, the first specific embodiment of the central swivel joint provided by the present invention will now be described with reference to the accompanying drawings.

[0036] See image 3 , Figure 4 and Figure 5 ,in, image 3 A schematic structural view of the first specific embodiment of the central rotary joint provided by the present inventi...

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Abstract

The invention discloses a centre revolving joint which comprises a fixing shaft and a revolving body sleeved on the fixing shaft. The revolving body is in sealed connection with the fixing shaft in a rotating mode, and the revolving body is formed by at least two segments of sub revolving bodies in a splicing mode. Compared with the prior art, the revolving body of the centre revolving joint is formed by the at least two segments of sub revolving bodies in the splicing mode, therefore, in the process of actual processing, firstly rough turning and accurate grinding are carried out on an inner hole of each segment of sub revolving body until the inner hole conforms to the precision requirement for the assembling process, and the at least two segments of sub revolving bodies are spliced and then are assembled with the fixing shaft. Obviously, machining of the revolving body of the structure can be completed in a common lathe and a grinder, machining difficulty is reduced, the requirements for machining equipment are reduced, therefore, whole manufacturing cost of the centre revolving joint is reduced, and the production period of the centre revolving joint is shortened. On the basis of the structure, the invention further discloses a wheel type crane comprising the centre revolving joint.

Description

technical field [0001] The invention relates to the technical field of wheeled cranes, in particular to a wheeled crane and a central rotary joint thereof. Background technique [0002] The central swivel joint is an essential hydraulic and electrical component of the wheeled crane. The central swivel joint can transmit the hydraulic oil and electrical signals of the alighting system to the boarding system; at the same time, it can also transmit the hydraulic oil and electrical signals of the boarding system to the alighting system. [0003] Such as figure 1 As shown, the central rotary joint mainly includes a fixed shaft 1', a rotary body 2', a rotary brush 4', and a shift fork 5'. Wherein, the fixed shaft 1' and the rotating body 2' form a rotary sealing connection through a sealing member 3'. The fixed shaft 1' is installed and fixed on the chassis of the getting off system, and is connected together with the chassis hydraulic oil and the electrical signal. The revolv...

Claims

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Application Information

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IPC IPC(8): F16L39/06B66C13/12H01R39/02H01R39/64
Inventor 史飞杨纯张付义
Owner XUZHOU HEAVY MASCH CO LTD
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