A boom and concrete spraying vehicle
A boom and basic boom technology, applied in the field of concrete shotcrete trucks, can solve the problems of troublesome maintenance, complex structure, many hydraulic control components, etc., and achieve the effects of convenient maintenance and repair, simple operation and high reliability
Active Publication Date: 2018-09-11
HUNAN WUXIN TUNNEL INTELLIGENT EQUIP CO LTD
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Problems solved by technology
The structure of the existing folding arm is relatively complicated, which requires high manufacturing precision and is not easy to install
The jib structure is equipped with two turntables, the structure is complicated, the installation is troublesome, the additional weight of the jib is increased, and the cost is also high
In addition, each turntable needs a rotary mechanism, which makes the hydraulic control system more complicated and troublesome to operate
Due to the complex structure of the arm frame and many hydraulic control components, it is not easy to maintain the product, the failure rate is high during use, and the maintenance is troublesome
Method used
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Embodiment Construction
[0040] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described The embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.
[0041] This example is written in a progressive manner.
[0042] please if Figure 1 to Figure 8As shown, the embodiment of the present invention provides a jib, including a turntable 1, a pitch arm 2, a boom assembly 3, a transition arm 4 and a small arm assembly 5, and the boom assembly 3 includes a boom basic arm 31 and a Boom telescopi...
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The present invention discloses a jib. The jib comprises a rotary table, a pitching arm, a big arm assembly, a transition arm and a small arm assembly; the pitching arm is hinged to one end of the big arm assembly; the pitching arm is hinged to the rotary table; an elevating oil cylinder is hinged to the rotary table; the elevating oil cylinder is hinged to the pitching arm; a big arm pitching oil cylinder is hinged to the big arm assembly; the big arm pitching oil cylinder is hinged to the pitching arm; one end of the transition arm is hinged to the big arm assembly; a small arm pitching oil cylinder is hinged to the big arm assembly; the small arm pitching oil cylinder is hinged to the transition arm; the small arm assembly is hinged to the transition arm; the transition arm is provided with a folding mechanism; and the folding mechanism is connected with the small arm assembly to enable the small arm assembly to rotate in the horizontal plane. The present invention also provides a concrete spraying truck using the jib. The jib is simple in structure and operation and high in reliability, and subsequent maintenance and repair are convenient.
Description
technical field [0001] The present application relates to the technical field of engineering machinery, in particular to a boom, and also to a concrete shotcrete vehicle. Background technique [0002] In tunnel engineering construction, after tunnel excavation, in order to control the appropriate release and deformation of surrounding rock stress, increase structural safety and facilitate construction, immediately after tunnel excavation, a structural layer with low stiffness and a part of the permanent bearing structure is constructed, called initial support. [0003] The initial support in tunnel engineering generally adopts shotcrete anchor support. Shotcrete anchor support refers to the joint action of high-pressure sprayed cement concrete and metal anchor rods driven into the rock formation to strengthen the rock formation, which is divided into temporary support structures and permanent support structures. [0004] Among them, the high-pressure sprayed cement concret...
Claims
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IPC IPC(8): E21D11/10
CPCE21D11/10
Inventor 王祥军龚俊宋祖源
Owner HUNAN WUXIN TUNNEL INTELLIGENT EQUIP CO LTD