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Telescopic rod stabilizing mechanism for hydraulic support

A technology of hydraulic supports and telescopic rods, which is applied in pillars/supports, mining equipment, earthwork drilling and mining, etc., can solve problems such as unfavorable support space layout, unfavorable roof support, and large proportions, so as to increase pedestrian and working space, and effectively Facilitate layout and utilization, and the structure of the telescopic rod is simple

Inactive Publication Date: 2005-07-13
黄尚智
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Problems solved by technology

Its disadvantage is that the four-bar linkage bears a lot of force, there are many rods under force (load, bending moment, torque), and the process of transmitting force is long, so that the proportion of the weight of the support used to maintain the stability of the support is very large, which is uneconomical.
The position setting of the pendulum mechanism is relatively flexible, but the length of the pendulum is often limited by the space position. Therefore, when a certain height adjustment ratio of the support is reached, the beam end distance will also change greatly when the support is raised and lowered. unfavorable
In addition, the swing rod itself and its movement will occupy a certain amount of work space, which is not conducive to the spatial arrangement of the bracket.

Method used

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  • Telescopic rod stabilizing mechanism for hydraulic support
  • Telescopic rod stabilizing mechanism for hydraulic support
  • Telescopic rod stabilizing mechanism for hydraulic support

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Embodiment Construction

[0022] The utility model will be further described below in conjunction with accompanying drawing.

[0023] figure 1 Middle 1 is a single-stage telescopic rod stabilizing mechanism with a rectangular section between the rear columns of the support. The upper part of the telescopic rod mechanism is the upper casing, and the upper end of the upper casing is connected with the ear seat under the roof beam by the beam external connection method; the lower part of the telescopic rod mechanism is the lower casing, and its upper end is sleeved on the upper casing The lower end of the lower casing is welded with the support base.

[0024] Fig. 2 is a structural schematic diagram of the telescopic rod stabilization mechanism. The telescopic rod stabilizing mechanism is composed of a group of tubular materials which are coaxial and have the same cross-sectional shape, and whose parameters are matched in size and which can be nested together.

[0025] Figure 2(a) is a schematic struct...

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Abstract

The present invention is telescopic rod stabilizing mechanism for hydraulic support, and relates to stabilizing mechanism for hydraulic support used in coal mine coal cutting working surface. The telescopic rod stabilizing mechanism consists of one piece or one pair of great cross section telescopic rods perpendicular to top beam and bottom seat, and is sued to bear various bending moment and torque moment. Single or two stages of telescopic rod stabilizing mechanisms may be adopted according to support adjusting height. The present invention has the advantages of capacity of vertically elevating top beam, simple structure, light weight and small occupied space. In necessary, the hydraulic column may be set in the middle part of the telescopic rod mechanism to form special support.

Description

technical field [0001] The utility model relates to a hydraulic support stabilizing mechanism used on a hydraulic support of a fully mechanized coal mining face. Background technique [0002] At present, there are mainly three kinds of stabilizing mechanisms for hydraulic supports in the world: (1) four-bar linkage. When the bracket adopts this mechanism, the top beam is raised and lowered in a trajectory similar to a vertical line (double button line), and the distance between the beam ends changes very little, which is beneficial to the support of the roof; and the bracket can be adjusted in a large range, so it is widely used Used on various types of brackets. Its disadvantage is that the four-bar linkage bears a large force, there are many rods under force (load, bending moment, torque), and the process of transmitting force is long, so that the proportion of the weight of the support used to maintain the stability of the support is very large, which is uneconomical. T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D15/48
Inventor 黄尚智
Owner 黄尚智
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