Self-moving device of repeated-free supporting unit bracket

Abstract

The invention discloses a self-moving device of a repeated-free supporting unit bracket. A first walking supporting arm is hinged to a bracket base, and a second walking supporting arm is hinged to the front end of the first walking supporting arm; a first pulling-moving jack is arranged between the bracket base and the first walking supporting arm, and a second pulling-moving jack is arranged between the first walking supporting arm and the second walking supporting arm; and the front end of the second walking supporting arm is bent downwards, the first pulling-moving jack and the second pulling-moving jack are provided with operating valves correspondingly, and the two groups of pulling-moving jacks are controlled through the operating valves to extend forwards, swing downwards and pullback the walking supporting arms to realize the self-moving function of the unit bracket.

Description

technical field

[0001] The invention relates to a coal mine working face along-trough support hydraulic support, in particular to a self-moving device for a support without repeated support units. Background technique

[0002] In recent years, the research on support technology and equipment along the groove of the working face has made considerable progress. Many production and research units have successfully developed various forms of advanced supports and put them into application. In many modern mine working faces, 20 Advanced support of about meters. Due to the queuing-type step-by-step moving method adopted by the large-scale advanced supports, it is inevitable to repeatedly support the roof, which is easy to cause damage to the roof and difficult to maintain, so it is impossible to realize the excavation of the stress-affected area along the groove (usually at 50 meters) all adopt advance support hydraulic supports, and beyond 20 meters for advance support, only rel...

Examples

specific Embodiment

[0025] Such as figure 1 As shown, the self-moving non-repeating support unit support of the present invention is compared with the unit support of the prior art. Two sets of pulling jacks and support walking arms are arranged on the support base, and the two sets of pulling jacks are controlled by the operating valve to move The arm stretches forward-swings-pulls back to realize the self-moving function of the unit bracket.

[0026] The present invention can adjust the stroke of the jack, the length of the walking support arm and the hinge points of the relevant connection elements to meet the requirements of the moving speed of the unit support under different working conditions, so as to meet the normal use requirements of the support.

[0027] Such as Figure 2a , Figure 2b , Figure 2c As shown in the figure, it is the flow chart of moving the self-moving non-repeatable support unit bracket.

technical field

[0001] The invention relates to a coal mine working face along-trough support hydraulic support, in particular to a self-moving device for a support without repeated support units. Background technique

[0002] In recent years, the research on support technology and equipment along the groove of the working face has made considerable progress. Many production and research units have successfully developed various forms of advanced supports and put them into application. In many modern mine working faces, 20 Advanced support of about meters. Due to the queuing-type step-by-step moving method adopted by the large-scale advanced supports, it is inevitable to repeatedly support the roof, which is easy to cause damage to the roof and difficult to maintain, so it is impossible to realize the excavation of the stress-affected area along the groove (usually at 50 meters) all adopt advance support hydraulic supports, and beyond 20 meters for advance support, only rel...

Examples

specific Embodiment

[0025] Such as figure 1 As shown, the self-moving non-repeating support unit support of the present invention is compared with the unit support of the prior art. Two sets of pulling jacks and support walking arms are arranged on the support base, and the two sets of pulling jacks are controlled by the operating valve to move The arm stretches forward-swings-pulls back to realize the self-moving function of the unit bracket.

[0026] The present invention can adjust the stroke of the jack, the length of the walking support arm and the hinge points of the relevant connection elements to meet the requirements of the moving speed of the unit support under different working conditions, so as to meet the normal use requirements of the support.

[0027] Such as Figure 2a , Figure 2b , Figure 2c As shown in the figure, it is the flow chart of moving the self-moving non-repeatable support unit bracket.

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