Novel concrete mold spraying equipment

A new type of concrete technology, applied in mining equipment, shaft equipment, earthwork drilling and mining, etc., can solve the problems of complex control action requirements and difficulty in meeting the use requirements, achieve significant economic and social benefits, improve construction efficiency and construction Quality and the effect of reducing occupational hazards

Pending Publication Date: 2019-02-19
SICHUAN LANHAI ENG EQUIP MFG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, during the mold spraying operation, the template mechanism used is very different from the traditional fixed template, and it needs to be constantly adjusted dynamically, and the position of the nozzle assembly relative to the template mechanism and relative to the mold cavity must be constantly adjusted. Adjustment, the requirements for control actions are very complex and must be precise, which puts forward high requirements for the overall performance of the mold spraying mechanism
How to design mold spraying equipment for tunnel support layer to realize mold spraying operation, there is no ready-made equipment and equipment for reference, and it is difficult to meet the above-mentioned requirements in the prior art

Method used

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  • Novel concrete mold spraying equipment
  • Novel concrete mold spraying equipment
  • Novel concrete mold spraying equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A new type of concrete spraying equipment, including a carrier mechanism I, a rotary boom 4, and a formwork mechanism 8, the template mechanism 8 is installed at the front end of the rotary boom 4, driven by the rotary boom 4, the template mechanism 8 can approach The rock surface is excavated so that the formwork mechanism 8 and the excavated rock surface form a mold cavity for the spray head assembly 9 to spray the concrete for temporary support from the direction that the transverse mold cavity is not perpendicular to the rock surface.

[0059] The spray head assembly 9 is installed on the front end of the rotating boom 4 and is located on the template mechanism 8 . Further, a forearm mechanism 5 is installed on the front end of the rotary boom 4, the template mechanism is installed on the front end of the forearm mechanism 5, and the nozzle assembly 9 is installed on the top of the forearm mechanism 5, and can slide back and forth along the longitudinal direction of ...

Embodiment 2

[0067] The mold spraying mechanism of the tunnel support layer includes a nozzle assembly 9, a template mechanism 8 and an injection system II. The nozzle assembly 9 is connected to the injection system II, and the nozzle assembly 9 is arranged above the template mechanism 8. The template mechanism 8 can The rock wall forms a mold cavity to be poured; the injection system II sends concrete to the nozzle assembly 9, and the nozzle assembly 9 injects concrete into the mold cavity in a direction not perpendicular to the rock wall above the formwork mechanism 8. The spray head assembly 9 is connected with a spray head fine-tuning mechanism, which can control the angle of the spray head 9 assembly relative to the template mechanism / cavity, so that the angle / direction of spraying the spray head assembly into the mold cavity can be adjusted.

[0068] The nozzle fine-tuning mechanism includes a pitch fine-tuning mechanism and a rotation fine-tuning mechanism, wherein the nozzle assembl...

Embodiment 3

[0072] This embodiment provides the specific structure of the nozzle fine-tuning mechanism on the basis of Embodiment 1. The nozzle fine-tuning mechanism includes a pitch fine-tuning mechanism and a rotation fine-tuning mechanism, wherein the nozzle assembly 9 is connected to the pitch fine-tuning mechanism and / or the rotation fine-tuning mechanism; The pitch fine-tuning mechanism can adjust the pitch angle / direction of the spray head assembly 9; the rotation fine-adjustment mechanism can adjust the rotation angle / direction of the spray head assembly 9; The angle / orientation relative to the cavity to ensure the effect and quality of injection casting.

[0073] The fine-tuning mechanism also includes a nozzle fixing seat 7, and the rotary fine-tuning mechanism is fixed on the nozzle fixing seat 7; the pitch fine-tuning mechanism and the nozzle assembly 9 are all arranged on the rotary fine-tuning mechanism, and the pitch fine-tuning mechanism and the nozzle assembly 9 are integr...

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PUM

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Abstract

The invention discloses novel concrete mold spraying equipment. The novel concrete mold spraying equipment comprises a carrier mechanism, a big arm mechanism, a template mechanism and a nozzle assembly. The carrier mechanism is provided with the big arm mechanism, the big arm mechanism comprises a big rotary arm, and the template mechanism and the nozzle assembly are arranged at the front end of the big rotary arm. The template mechanism is capable of forming a mold cavity with an excavation rock face, and the nozzle assembly is capable of adjusting the injection angle/direction relative to the mold cavity. By using a mold spraying trolley, zero rebound can be achieved, the amount of concrete can be reduced by 20%-40% in the same working range, the amount of setting accelerators is reduced, and economic and social benefits are remarkable; the surface finish quality of the concrete is high, post-shaping is no needed, the construction period is shortened, and the production efficiency isgreatly improved; and the mechanical construction can be remotely operated in the whole process, the construction safety is greatly improved, the dust intake of operators can be effectively reduced,and the probability of occupational diseases such as silicosis is reduced.

Description

technical field [0001] The invention belongs to the technical field of engineering machinery, and in particular relates to a newly designed concrete mold spraying equipment used for the initial support of tunnels. Background technique [0002] In the initial support construction of the tunnel, the construction method of directly spraying concrete on the excavation surface is adopted, and the spraying concrete method is divided into two types: mechanical arm spraying and manual spraying. The current direct shotcrete construction method has the following disadvantages: [0003] The rebound rate is high. Now there is 20%-40% rebound in the construction process, and the rebound material cannot be recycled, resulting in great waste, which is the main reason for the high construction cost. [0004] The amount of quick-setting agent is large, and the construction method of direct spraying concrete requires that the concrete needs to be bonded to the excavation surface within a sho...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D11/10
CPCE21D11/105E21D11/102
Inventor 蓝传雯
Owner SICHUAN LANHAI ENG EQUIP MFG CO LTD
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