Roadway hydraulic support

Abstract

The utility model discloses a roadway hydraulic support, which belongs to the related technical field of coal mine hydraulic support equipment and comprises a base, a lifting support unit and an auxiliary support unit. The lifting supporting unit comprises hydraulic supporting columns which are fixed to the base, are symmetrical in pairs and are connected with a hydraulic working system to conduct corresponding lifting and supporting operation. The supporting platform is fixed to the lifting end of the hydraulic supporting column. The supporting beam plate is erected on the supporting platform; the auxiliary supporting unit has a supporting state, moves to the position below the supporting beam plate along the supporting platform, adjusts the height of a supporting operation face and is used for conducting corresponding auxiliary supporting operation on the supporting beam plate. In the supporting state, the supporting platform is moved to the end of the supporting platform, the height of the supporting working face is adjusted, corresponding supporting operation is conducted on the roadway roof, proper temporary supporting adjustment can be conducted according to pressure distribution and pressure changes of the roof, more operation time is reserved for a further supporting scheme, and emergency situations of the roof can be dealt with conveniently.

Description

Technical Field

[0001] The invention belongs to the technical field related to coal mine hydraulic support equipment, and in particular relates to a tunnel hydraulic support. Background Art

[0002] A tunnel is a passage excavated for mining hoisting, transportation, ventilation, drainage, power supply, etc. in underground mining. The cross-section of a tunnel is mostly arched, trapezoidal or rectangular. The tunnel is generally supported by hydraulic supports, anchors, etc. As the tunnel is excavated and mining operations proceed, the tunnel roof pressure gradually changes, and the pressure distribution of the tunnel roof also varies. However, the existing support equipment is not convenient for adjusting the support intensity according to the roof conditions. Summary of the invention

[0003] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a tunnel hydraulic support, which can make appropriate temporary support adjustments according to the pressure distribution and pressure changes of the roof, reserve more working time for further support plans, and facilitate dealing with sudden situations of the roof.

[0004] The technical solution adopted by the present invention is as follows: a tunnel hydraulic support, including a base, a lifting support unit and an auxiliary support unit; the base is symmetrically distributed on both sides of the tunnel bottom plate, has a corresponding extension length and has a corresponding supporting force; the lifting support unit includes hydraulic pillars, which are fixed on the base and are symmetrical in pairs, connected to the hydraulic working system, and perform corresponding lifting and supporting operations; a support platform, fixed on the lifting end of the hydraulic pillar, has a corresponding supporting force; a supporting beam, erected on the supporting platform, has a corresponding support length; the auxiliary support unit includes a supporting state, which is displaced along the supporting platform to the bottom of the supporting beam, and the height of the supporting working surface is adjusted, which is used to perform corresponding auxiliary supporting operations on the supporting beam; a supporting state, which is displaced along the supporting platform to the end of the supporting platform, and the height of the supporting working surface is adjusted, which is used to perform corresponding support operations on the tunnel top plate.

[0005] Furthermore, a support body for erecting a support beam is provided on the support platform.

[0006] Furthermore, guide rails are arranged on both sides of the support platform along the length direction, and the auxiliary support unit is connected to a linear drive so that the auxiliary support unit is displaced along the guide rails.

[0007] Furthermore, the auxiliary support unit includes a moving block that moves along the support platform; a lifting column that is arranged on the moving block and connected to the hydraulic working system to perform corresponding lifting and supporting operations; and a support plate that is installed at the lifting end of the lifting column and has corresponding supporting force.

[0008] Furthermore, balls are arranged at intervals on the supporting working surface of the supporting plate.

[0009] After adopting the above structure, the beneficial effects of the utility model are as follows: the utility model proposes a tunnel hydraulic support, which has a supporting state and a supporting state through the auxiliary support unit. When the roof pressure at the supporting beam and slab support operation position increases, it can be supported on the bottom of the supporting beam and slab to assist in enhancing the supporting effect of the supporting beam and slab; when the roof pressure changes beyond the supporting beam and slab support operation position, it can be displaced to perform temporary support at the front or rear end of the supporting beam and slab (along the extension direction of the tunnel), reserving more operating time for further support plans, which is convenient for responding to sudden situations of the roof. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0011] Figure 1 This is a schematic diagram of the overall structure of a tunnel hydraulic support proposed by the utility model;

[0012] Figure 2 A partial cross-sectional view of a tunnel hydraulic support proposed by the utility model;

[0013] Figure 3 This is a schematic diagram of the support plate structure of a tunnel hydraulic support proposed by the utility model;

[0014] Figure 4 The present invention is a schematic diagram of the supporting structure of a tunnel hydraulic support proposed by the present invention.

[0015] In the attached drawings: 1. base, 2. hydraulic support, 3. support platform, 4. support beam, 5. support body, 6. guide rail, 7. moving block, 8. lifting column, 9. support plate, 10. ball bearing, 11. telescopic push rod. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0017] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0018] like Figure 1-Figure 4 As shown, a tunnel hydraulic support comprises a base 1, a lifting support unit and an auxiliary support unit; the base 1 is symmetrically distributed on both sides of the tunnel bottom plate, has a corresponding extension length and has a corresponding supporting force; a moving component can be set at the bottom of the base 1 to facilitate the overall movement of the device to the corresponding supporting position in the tunnel; the lifting support unit is set on the base 1, and can perform lifting and supporting operations, and perform corresponding supporting operations at a suitable height, and the supporting working surface at the top can match the tunnel roof, and the cross-section can be arched, trapezoidal or rectangular, etc.; the auxiliary support unit has two operating states, namely, a supporting state and a supporting state, which can assist the supporting operation of the lifting support unit at the supporting position, and can also assist the supporting operation of the roof at the front and rear end positions of the lifting support unit. Similarly, the cross-section of the supporting working surface of the auxiliary support unit can be arched, trapezoidal or rectangular, etc.

[0019] In some preferred embodiments, the lifting support unit includes hydraulic pillars 2, which are fixed on the base 1 and are symmetrical in pairs, connected to the hydraulic working system, and perform corresponding lifting and supporting operations; a support platform 3, which is fixed at the lifting end of the hydraulic pillar 2 and has a corresponding supporting force; a support beam 4, which is erected on the support platform 3 through a support body 5, and the support beam 4 has a corresponding support length. Specifically, the support body 5 can be set in the middle position of the support platform 3, and a buffer airbag can be set at the top, so that when the support beam is under pressure, it has a certain reverse force.

[0020] It should be noted that two groups of auxiliary support units can be set, which are respectively located in front and rear of the support body 5; guide rails 6 are set on both sides of the support platform 3 along the length direction, and the auxiliary support unit is connected to a linear drive to displace the auxiliary support unit along the guide rail 6. Here, the linear drive can be a telescopic push rod 11, which is respectively fixed on the front and rear sides of the support body 5, and can push the auxiliary support unit to the front and rear ends respectively, so that the auxiliary support unit can perform corresponding support or support at the front and rear of the support beam 4.

[0021] In some preferred embodiments, the auxiliary support unit includes a moving block 7, which is displaced along the support platform 3. The moving block 7 is connected to the telescopic end of the telescopic push rod 11 and slides along the guide rail 6 on the support platform 3; a lifting column 8 is arranged on the moving block 7 and connected to the hydraulic working system to perform corresponding lifting and supporting operations; a support plate 9 is installed at the lifting end of the lifting column 8 and has a corresponding supporting force. In addition, preferably, the supporting working surface of the support plate 9 is equipped with balls 10 arranged at intervals. When performing temporary support, the support plate 9 can be moved when it is in a supporting state (i.e., supported on the tunnel roof) to change the overall support position of the bracket, thereby improving safety.

[0022] On the basis of the above structure, the auxiliary support unit includes a supporting state, in which it is displaced along the support platform 3 to the bottom of the support beam 4, and the height of the support working surface is adjusted to perform corresponding auxiliary support operations on the support beam 4; a supporting state, in which it is displaced along the support platform 3 to the end of the support platform 3, and the height of the support working surface is adjusted to perform corresponding support operations on the tunnel roof.

[0023] The specific use is as follows: the device of the present application is moved and installed at the corresponding support position in the tunnel; the hydraulic support 2 is adjusted to lift the support platform 3 and the support beam 4, so that the support beam 4 fits the tunnel roof to perform corresponding support operations;

[0024] The supporting or supporting position of the auxiliary support unit can be adjusted according to the pressure conditions of the top plate. It can be moved to the bottom of the supporting top beam by the telescopic push rod 11, and then the height of the support plate 9 can be adjusted by the lifting column 8 so that the support plate 9 is supported at the bottom of the supporting top beam to strengthen the support of the supporting top beam; it can also be moved to the front or rear end of the supporting top beam by the telescopic push rod 11, and then the height of the support plate 9 can be adjusted by the lifting column 8 so that the support plate 9 is supported at the corresponding position of the top plate. The two groups of auxiliary support units on the front and rear sides can be adjusted to the supporting or supporting state separately, which can adapt to the pressure changes of the top plate, facilitate coping with sudden situations of the top plate, and reserve more working time for further support plans.

[0025] Although the embodiments of the present invention have been shown and described, it is understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents. In short, if those skilled in the art are inspired by them and design structural modes and embodiments similar to the technical solution without creativity without departing from the purpose of the present invention, they shall all fall within the scope of protection of the present invention.

Claims

1. A tunnel hydraulic support, characterized in that: include: The base is symmetrically distributed on both sides of the tunnel floor, has a corresponding extension length and has a corresponding supporting force; The lifting support unit includes hydraulic struts, which are fixed on the base and symmetrical in pairs, connected to the hydraulic working system, and perform corresponding lifting and supporting operations; a support platform, which is fixed on the lifting end of the hydraulic strut and has corresponding supporting force; a supporting beam plate, which is erected on the support platform and has corresponding supporting length; The auxiliary support unit includes a support state, which is displaced along the support platform to the bottom of the support beam plate, and the height of the support working surface is adjusted to perform corresponding auxiliary support operations on the support beam plate; In the support state, the support platform is displaced to the end of the support platform, and the height of the support working surface is adjusted to perform corresponding support operations on the tunnel roof.

2. A tunnel hydraulic support according to claim 1, characterized in that: The support platform is provided with a support body for erecting the support beam plate.

3. The tunnel hydraulic support according to claim 1, characterized in that: Guide rails are arranged on both sides of the support platform along the length direction, and the auxiliary support unit is connected to a linear drive so that the auxiliary support unit moves along the guide rails.

4. The tunnel hydraulic support according to claim 1, characterized in that: The auxiliary support unit includes a moving block that moves along the support platform; a lifting column that is arranged on the moving block and connected to the hydraulic working system to perform corresponding lifting and supporting operations; The support plate is installed at the lifting end of the lifting column and has corresponding supporting force.

5. The tunnel hydraulic support according to claim 4, characterized in that: Ball bearings are arranged at intervals on the supporting working surface of the supporting plate.

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