Hydraulic support for mining

Abstract

The utility model discloses a hydraulic support for mining, which comprises two groups of support components, namely a support component I and a support component II, the support component I and the support component II are symmetrically placed in a mine roadway, a fixing plate is connected between the support component I and the support component II, and the support component I and the support component II are fixed on the fixing plate. The first supporting assembly and the second supporting assembly are the same in structure. The utility model belongs to the technical field of mining equipment, the threaded rod sequentially and movably penetrates through the bottom wall of the supporting piece, the base plate and the bottom plate and then is inserted into the ground, the equipment is fixed, and meanwhile the supporting piece, the base plate and the bottom plate can be fastened through the nuts; an external inflator pump inflates the storage cavity through the air inlet hole, air in the storage cavity enters the groove hole through the vent hole, the elastic piece in the groove hole is bulged and arranged to be attached to the uneven position in a mine roadway, and meanwhile the bulged elastic piece can buffer rigid impact force encountered by a mine.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining equipment, and particularly relates to a hydraulic support for mine mining. Background Art

[0002] In fully mechanized coal mining equipment, the hydraulic support is an important part of the fully mechanized mining equipment, mainly used to control the pressure of the mine in coal mining work and can play a supporting role. As a very important structural part of the hydraulic support, the top beam bears the main pressure from the roof. At present, the advanced support of the roadway adopts an arch plate or a rigid impact-resistant hydraulic support, and the top or side wall structure of the mine roadway is often uneven, which makes the top beam of the hydraulic support unable to effectively fit the roadway. Due to the lack of sufficient support for the roadway, risks such as the spalling of the ore body structure or the collapse and shrinkage of the cavity in the roadway are likely to occur. Content of the Utility Model

[0003] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a hydraulic support for mine mining, which at least partially solves the problems raised in the above background art.

[0004] The technical solution adopted by the utility model is as follows: A hydraulic support for mine mining includes a support assembly. There are two groups of the support assemblies, namely support assembly one and support assembly two. The support assembly one and the support assembly two are symmetrically placed in the mine roadway to support the top of the mine roadway. A fixing plate is connected between the support assembly one and the support assembly two. The support assembly one and the support assembly two have the same structure, and only one of them will be introduced here. The support assembly one includes a bottom plate for support and fixation. A plurality of threaded rods for limiting and fixation are movably installed on the bottom plate. A plurality of pads for support are also movably installed on the upper wall of the bottom plate. A support member is movably installed on the upper wall of the uppermost pad. The threaded rods sequentially pass through the pads and the bottom wall of the support member movably, and the upper end of the threaded rod is located above the bottom wall of the support member. The lower end of the threaded rod penetrates the bottom plate and then inserts into the ground.

[0005] Preferably, the upper end of the support member is an arched structure, and one end of the arched structure of the support member is a horizontal structure.

[0006] Wherein, a slot hole is provided on the side wall of the support member, and an elastic member is provided in the slot hole.

[0007] Wherein, a limiting plate is installed on the bottom wall of the support member. A storage cavity is installed between the limiting plate and the side wall of the support member. The storage cavity, the limiting plate and the support member form a sealed chamber. A plurality of ventilation holes for gas circulation are provided on the support member. The ventilation holes are connected to the storage cavity and the slot hole. An air inlet hole is provided on the side wall of the limiting plate, and a control valve is provided in the air inlet hole.

[0008] Preferably, a limiting groove is provided on the backing plate, and the threaded rod movably penetrates through the limiting groove. The thickness of the backing plate is also different, which is convenient for adjusting the height of the support member.

[0009] Furthermore, a jack is movably installed between the bottom plate and the support member. The fixed end of the jack is arranged on the upper wall of the bottom plate, and the movable end of the jack is connected to the bottom wall of the support member.

[0010] Furthermore, the lower end of the threaded rod is of a conical structure, which is convenient for inserting into the ground to fix the bottom plate. The upper end of the threaded rod is of a threaded structure, which is convenient for fixing the equipment.

[0011] Among them, a threaded hole is provided on the side wall of the upper end of the support member, and the fixing plate is fixed to the first support assembly and the second support assembly through the threaded hole and the bolt.

[0012] After adopting the above structure, the beneficial effects of the present utility model are as follows:

[0013] The threaded rod sequentially movably penetrates through the bottom wall of the support member, the backing plate and the bottom plate and then inserts into the ground, realizing the fixation of the equipment. At the same time, the upper end of the threaded rod is arranged at the upper end of the bottom wall of the support member, and the support member, the backing plate and the bottom plate can be fastened through the nut;

[0014] The external air inflation pump inflates the storage cavity through the air inlet hole. The gas in the storage cavity enters the slot hole through the ventilation hole. The elastic member in the slot hole bulges and is arranged to fit the uneven position in the mine roadway. At the same time, the bulging elastic member can also buffer the rigid impact force encountered in the mine. Description of the Drawings

[0015] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0016] Figure 1 It is a schematic structural diagram of a hydraulic support for mine exploitation proposed by the present utility model;

[0017] Figure 2 It is Figure 1 a partial enlarged view of point A of

[0018] Figure 3 It is a schematic structural diagram of the slot hole and the ventilation hole proposed by the present utility model;

[0019] Figure 4 It is Figure 3 a partial enlarged view of point B of

[0020] Figure 5 It is a cross-sectional view of a hydraulic support for mine exploitation proposed by the present utility model;

[0021] Figure 6 is Figure 5 a partial enlarged view at position C of

[0022] Figure 7 is a cross-sectional view of the backing plate proposed by the present utility model.

[0023] In the drawings: 1. First support assembly, 2. Second support assembly, 3. Fixed plate, 4. Bottom plate, 5. Threaded rod, 6. Backing plate, 7. Support member, 8. Slot hole, 9. Elastic member, 10. Limit plate, 11. Storage cavity, 12. Vent hole, 13. Air inlet hole, 14. Limit groove, 15. Jack, 16. Threaded hole. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments; based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0026] As Figures 1-7 shown, a hydraulic support for mine excavation includes a support assembly. There are two sets of the support assemblies, namely the first support assembly 1 and the second support assembly 2. The first support assembly 1 and the second support assembly 2 are symmetrically placed in the mine roadway to support the top of the mine roadway. A fixed plate 3 is connected between the first support assembly 1 and the second support assembly 2. The first support assembly 1 and the second support assembly 2 have the same structure, and only one of them will be introduced here. The first support assembly 1 includes a bottom plate 4 for support and fixation. A plurality of threaded rods 5 for limit and fixation are movably installed on the bottom plate 4. A plurality of backing plates 6 for support are also movably installed on the upper wall of the bottom plate 4. A support member 7 is movably installed on the upper wall of the uppermost backing plate 6. The threaded rod 5 sequentially passes through the backing plate 6 and the bottom wall of the support member 7 movably, and the upper end of the threaded rod 5 is located above the bottom wall of the support member 7. The lower end of the threaded rod 5 passes through the bottom plate 4 and is inserted into the ground;

[0027] It should be noted that when the adjusted support member 7 needs to be fixed, the nut is sleeved on the threaded rod 5 at the upper end of the support member 7, and the nut is screwed. The nut moves downward to the bottom wall of the support member 7 to fasten the support member 7, the backing plate 6 and the bottom plate 4.

[0028] The upper end of the support member 7 is an arched structure, and one end of the arched structure of the support member 7 is a horizontal structure.

[0029] A slot hole 8 is provided on the side wall of the support member 7, and an elastic member 9 is provided in the slot hole 8.

[0030] A limiting plate 10 is installed on the bottom wall of the support member 7, and a storage cavity 11 is installed between the limiting plate 10 and the side wall of the support member 7. A sealed chamber is formed among the storage cavity 11, the limiting plate 10 and the support member 7. A plurality of ventilation holes 12 for gas circulation are provided on the support member 7. The ventilation holes 12 are connected to set the storage cavity 11 and the slot hole 8. An air inlet hole 13 is provided on the side wall of the limiting plate 10, and a control valve is provided in the air inlet hole 13;

[0031] It should be noted that an external air inflation pump inflates the storage cavity 11 through the air inlet hole 13. The gas in the storage cavity 11 enters the slot hole 8 through the ventilation holes 12. The elastic member 9 in the slot hole 8 bulges and is arranged to fit the uneven positions in the mine roadway. At the same time, the bulging elastic member 9 can also buffer the rigid impact force encountered by the mine.

[0032] A limiting groove 14 is provided on the backing plate 6, and the threaded rod 5 movably penetrates through the limiting groove 14.

[0033] A jack 15 is movably installed between the bottom plate 4 and the support member 7. The fixed end of the jack 15 is arranged on the upper wall of the bottom plate 4, and the movable end of the jack 15 is connected to the bottom wall of the support member 7;

[0034] It should be noted that when the height of the arched plate needs to be adjusted, the nut is removed from the threaded rod 5 at the bottom wall of the support plate. The staff supports the support member 7, and then the jack 15 works to push the support member 7 upward, so that the arched structure and the horizontal structure at the upper end of the support member 7 are arranged to fit the inner wall of the mine cave as much as possible.

[0035] The lower end of the threaded rod 5 is a conical structure, which is convenient for inserting into the ground to fix the bottom plate 4. The upper end of the threaded rod 5 is a threaded structure, which is convenient for fixing the equipment.

[0036] A threaded hole 16 is provided on the side wall at the upper end of the support member 7. The fixing plate 3 is fixed to the support assembly one 1 and the support assembly two 2 through the threaded hole 16 and bolts.

[0037] During actual use, the first support component 1 and the second support component 2 are symmetrically placed on both sides inside the mine roadway. The lower end of the support member 7 of the first support component 1 is arranged in contact with the inner wall on one side of the roadway, and the lower end of the support member 7 of the second support component 2 is arranged in contact with the inner wall on the other side of the roadway. After determining the positions, the bottom plate 4 is placed on the corresponding roadway ground, and then the threaded rod 5 penetrates through the bottom plate 4 and is inserted into the ground to fix the bottom plate 4. First, a part of the cushion plate 6 is placed on the bottom plate 4, and then the bottom wall of the support member 7 is arranged on the cushion plate 6. At this time, the threaded rod 5 penetrates through the cushion plate 6 and the bottom wall of the support plate, and the upper end of the threaded rod 5 is arranged at the upper end of the bottom wall of the support member 7. Then, the staff supports the support member 7, and the jack 15 works to push the support member 7 upward, so that the arched structure and the horizontal structure at the upper end of the support member 7 are as close as possible to the inner wall of the mine cave. After the height adjustment is completed, a cushion plate 6 with an appropriate thickness is selected and inserted between the bottom wall of the support plate and the cushion plate 6 that has been placed well to support the support plate. Then, the adjusted support member 7 is fixed. The nut is sleeved on the threaded rod 5 at the upper end of the support member 7, and the nut is screwed. The nut moves downward to the bottom wall of the support member 7 to tighten the support member 7, the cushion plate 6, and the bottom plate 4. The jack 15 can be removed from the bottom plate 4. The fixing plate 3 is fixed to the first support component 1 and the second support component 2 through the threaded holes 16 and bolts;

[0038] Finally, an external air pump is connected to inflate the storage cavity 11 through the air inlet hole 13. The gas in the storage cavity 11 enters the slot hole 8 through the ventilation hole 12. The elastic member 9 in the slot hole 8 bulges and is arranged to fit the uneven positions in the mine roadway. At the same time, the bulging elastic member 9 can also buffer the rigid impact force encountered in the mine. The control valve in the air inlet hole 13 is closed to prevent the gas in the elastic member 9 from being discharged.

[0039] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents. Generally speaking, if those of ordinary skill in the art are inspired and, without departing from the creative purpose of the present invention, design similar structural methods and embodiments to this technical solution without creative efforts, they should all fall within the protection scope of the present invention.

Claims

1. A hydraulic support for mine exploitation, characterized in that, It includes support components. There are two groups of the support components, namely support component one and support component two. The support component one and the support component two are symmetrically placed in the mine roadway. There is a fixed plate connected between the support component one and the support component two. The support component one and the support component two have the same structure. The support component one includes a bottom plate for support and fixation. A plurality of threaded rods for limiting and fixation are movably installed on the bottom plate. A plurality of pads for support are also movably installed on the upper wall of the bottom plate. A support member is movably installed on the upper wall of the uppermost pad. The threaded rods sequentially pass through the pads and the bottom wall of the support member movably, and the upper ends of the threaded rods are located above the bottom wall of the support member. The lower ends of the threaded rods penetrate the bottom plate and are inserted into the ground.

2. The hydraulic support for mine exploitation according to claim 1, wherein The upper end of the support member is in an arched structure, and one end of the arched structure of the support member is in a horizontal structure.

3. A hydraulic support for mine exploitation according to claim 1, characterized in that, A slot hole is provided on the side wall of the support member, and an elastic member is provided in the slot hole.

4. A hydraulic support for mine exploitation according to claim 3, characterized in that, A limiting plate is installed on the bottom wall of the support member. A storage cavity is installed between the limiting plate and the side wall of the support member. The storage cavity, the limiting plate and the support member form a sealed chamber. A plurality of ventilation holes for gas circulation are provided on the support member. The ventilation holes are connected to set the storage cavity and the slot hole. An air inlet hole is provided on the side wall of the limiting plate, and a control valve is provided in the air inlet hole.

5. A hydraulic support for mine exploitation according to claim 1, characterized in that, Limiting grooves are provided on the pads, and the threaded rods pass through the limiting grooves movably.

6. A hydraulic support for mine exploitation according to claim 1, characterized in that, A jack is movably installed between the bottom plate and the support member. The fixed end of the jack is located on the upper wall of the bottom plate, and the movable end of the jack is connected to the bottom wall of the support member.

7. The hydraulic support for mine exploitation according to claim 1, characterized in that, The lower end of the threaded rod is in a conical structure, and the upper end is in a threaded structure.

8. A hydraulic support for mine exploitation according to claim 1, characterized in that, Threaded holes are provided on the upper side wall of the support member. The fixed plate is fixed to the support component one and the support component two through the threaded holes and bolts.

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