Roadway hydraulic support equipment

Abstract

The utility model discloses roadway hydraulic support equipment, which belongs to the related technical field of mining hydraulic equipment and comprises a group of oppositely arranged bases, hydraulic upright posts arranged on the bases, a top beam positioned on the hydraulic upright posts and a side protection unit positioned in the side direction of the top beam, the oppositely distributed bases have corresponding supporting force; the hydraulic stand columns are arranged on the base respectively and carry out corresponding supporting and lifting operation. The top beam is connected with the lifting end of the hydraulic stand column and acts on a roadway top plate. The side protection units are symmetrically distributed at the two ends of the top beam, the lateral supporting operation position can be adjusted according to the width of a roadway, a top plate is supported beside a filling body, meanwhile, lateral supporting can be conducted on the filling body on the outer side of the filling body, and meanwhile lateral waste rock blocking is conducted in a goaf.

Description

Technical Field

[0001] The utility model belongs to the technical field related to mining hydraulic equipment, and in particular relates to tunnel hydraulic support equipment. Background Art

[0002] To reduce pillar loss between mining sections, mines often employ pillar-free mining. This involves retaining a tunnel along the goaf within the working face of one section to serve the next section's mining face. This is called a gob-side entry. This approach achieves pillar-free mining, reduces roadway excavation, and alleviates tight mine connections, resulting in significant social and economic benefits. Gob-side entry tunnels are often separated from the goaf by a fill material (typically a flexible upper layer and a high-strength lower layer).

[0003] In the early stage of pouring the filling body, it does not have great strength. Before the strength reaches the requirement, the tunnel roof needs to be continuously supported beside the filling body. Generally, narrow hydraulic support equipment is used (the security position in the goaf is narrow, so it needs to be narrow and have a long support length along the tunnel) for support and move it to the next working position after the filling body is stable. In addition, it takes a certain amount of time for the goaf gangue on the side of the hydraulic support to stabilize. The existing support equipment lacks effective lateral support, and the support effect is not ideal, which makes it easy for gangue to leak on one side of the goaf, and one side of the filling body (which does not have great strength in the initial stage) is prone to serious deformation. The gangue enters the tunnel and affects the movement of the support equipment and other operations. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the existing technology, the utility model provides a tunnel hydraulic support equipment, which can support the roof next to the filling body, and at the same time provide lateral support to the filling body outside the filling body, and at the same time provide lateral rock blocking in the goaf.

[0005] The technical solution adopted by the present invention is as follows: a tunnel hydraulic support equipment, including a group of relatively arranged bases, hydraulic columns arranged on the bases, a top beam located on the hydraulic columns and side protection units located on the sides of the top beam; the relatively distributed bases have corresponding supporting forces; the hydraulic columns are respectively arranged on the bases to perform corresponding supporting and lifting operations; the top beam is connected to the lifting end of the hydraulic columns and acts on the tunnel roof; the side protection units are symmetrically distributed at both ends of the top beam, and the lateral support operation position can be adjusted according to the width of the tunnel.

[0006] Furthermore, a sliding channel is defined inside the top beam, and both ends of the sliding channel extend to both ends of the top beam respectively. A fixed plate is provided in the middle of the sliding channel, and the fixed plate separates the sliding channel. A hydraulic push rod is provided on both sides of the fixed plate.

[0007] Furthermore, the side guard unit includes a sliding end, a support part connected to the sliding end, and a second hydraulic push rod. The sliding end slides along the corresponding sliding channel, and the telescopic end of the hydraulic push rod is connected to the sliding end of the side guard plate; the support part is hinged to the sliding end and is located on the outside of the corresponding end of the top beam for lateral support; the second hydraulic push rod is installed at the bottom of the top beam through a fixed vertical plate, and the telescopic end is connected to a push plate through a universal joint, and the push plate can be pushed to the support part.

[0008] Furthermore, a protective shell is provided on the base, and the telescopic end of the hydraulic column can be movably extended out of the top end of the protective shell.

[0009] Furthermore, the supporting portion is a plate-shaped structural member, the supporting portion has a predetermined supporting operation length along the height direction of the tunnel, and the supporting portion is provided with a through hole.

[0010] After adopting the above structure, the beneficial effects of the utility model are as follows: the utility model proposes a tunnel hydraulic support equipment, which is used for tunnel retention operations along the goaf. When the cast filling body does not have a specific high strength, it can support the tunnel roof while performing gangue blocking operations on the side of the goaf to reduce gangue leakage and provide support on the side of the goaf; it can support the outside of the filling body laterally, avoid serious deformation of the filling body in the early stage of casting the filling body (when it does not have a high strength), and maintain the side and roof of the tunnel before the filling body is stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0012] Figure 1 This is a schematic diagram of the overall structure of a tunnel hydraulic support equipment proposed by the utility model;

[0013] Figure 2 This is a half-section view of a tunnel hydraulic support device proposed by the utility model;

[0014] Figure 3 This is a state diagram of a tunnel hydraulic support equipment proposed in the utility model during gob-side tunnel retaining support operation.

[0015] In the attached drawings: 1. base, 2. hydraulic column, 3. top beam, 4. fixed plate, 5. protective shell, 6. push plate, 7. sliding end, 8. hydraulic push rod 1, 9. support part, 10. hydraulic push rod 2, 11. fixed vertical plate. 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 document, relational terms such as first and second, etc., are used only 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 "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0018] like Figure 1-Figure 3 As shown, a tunnel hydraulic support device is designed for use in tunnel side support along goaf-retained tunnels. The device is typically located within the goaf outside the backfill. It comprises a pair of relatively positioned bases 1, hydraulic columns 2 mounted on the bases 1, a top beam 3 mounted on the hydraulic columns 2, and side protection units located laterally of the top beam 3. The relatively positioned bases 1 provide a corresponding supporting force; the bases 1 can be connected to the hydraulic support's sliding mechanism and moved along the length of the tunnel, enabling the support device to perform support operations at different locations. The hydraulic columns 2 are mounted on the bases 1 to perform corresponding support and lifting operations. A protective housing 5 is provided on the base 1. The telescopic ends of the hydraulic columns 2 can be movably extended from the top of the protective housing 5, protecting the driving ends of the hydraulic columns 2. The top beam 3 is connected to the lifting ends of the hydraulic columns 2 and acts on the tunnel roof, providing support for the tunnel roof. The side protection units are symmetrically distributed at both ends of the top beam 3, allowing the lateral support operation position to be adjusted according to the tunnel width.

[0019] In some preferred embodiments, a sliding channel is defined within the top beam 3, with both ends of the sliding channel extending to the ends of the top beam 3. A fixed plate 4 is provided in the middle of the sliding channel to separate the sliding channel. Hydraulic push rods 5 are provided on both sides of the fixed plate 4. The hydraulic push rods 5 serve as the drive for the side guard unit.

[0020] In some preferred embodiments, the side guard unit includes a sliding end 7, a supporting portion 9 connected to the sliding end, and a hydraulic push rod 2 10. The sliding end 7 slides along the corresponding sliding channel, and the telescopic end of the hydraulic push rod 1 5 is connected to the sliding end 7 of the side guard plate 6; the supporting portion 9 is hinged to the sliding end 7 and is located on the outside of the corresponding end of the top beam 3 for lateral support. Here, preferably, the supporting portion 9 can be a plate-shaped structural member, and the supporting portion 9 has a through hole to facilitate the insertion of support devices such as anchor rods from the through hole; the hydraulic push rod 2 10 is installed at the bottom of the top beam 3 through a fixed vertical plate 11, and the telescopic end is connected to the push plate 6 through a universal joint. The push plate 6 can be pushed to the supporting portion 9, and the hydraulic During the telescopic operation, the push rod 1 5 pushes the support part 9 to slide along the sliding channel. The support part 9 can be pushed to the outside of the filling body and the lateral collapsed gangue in the goaf. At this time, the push plate 6 can be pushed to the side of the support part 9 to contact the support part 9 through the corresponding hydraulic push rod 2 10, and the support angle of the support part 9 can be adjusted to support and block the lateral wall formed by the collapsed gangue. In addition, on one side of the filling body, through the drive of the corresponding hydraulic push rod 1 8 and the hydraulic push rod 2 10, the push plate 6 can be supported from the middle part of the side of the support part 9. When the support part 9 supports the side of the filling body, the support part 9 cooperates with the top beam 3 to form a multi-point support effect, maintain the initial stability of the filling body, and avoid serious deformation.

[0021] It should be noted that the support portion 9 has a predetermined support operation length along the height direction of the tunnel, wherein a support portion 9 can be supported outside the filling body and cooperate with the top beam 3 to form a support operation surface with an angle (for example Figure 3 In the middle, it is an L-shaped support working surface) to strengthen the support effect on the outside of the filling body; the other support part 9 supports the gangue collapsed in the goaf, has a corresponding support length, supports the outside of the gangue and realizes gangue blocking.

[0022] The specific usage is as follows: Figure 3 The support equipment of this application is applied to the technology of retaining lanes along the goaf. The support is provided between the goaf and the coal mining working face. The roof of the goaf is supported at a suitable position. The filling body is cast on the side close to the coal mining working face. The support equipment is located outside the filling body. The roof is supported in the early stage of the filling body. At the same time, the side protection units on both sides of the top beam 3 are respectively supported on the side of the collapsed gangue in the goaf and supported on the outside of the filling body.

[0023] Among them, the side protection unit close to the collapsed gangue, the corresponding hydraulic push rod 1 5 pushes the support part 9 to move the working position, and at the same time the corresponding hydraulic push rod 2 10 adaptively adjusts the angle of the support part 9 to prevent the gangue from entering the tunnel.

[0024] Among them, in the side protection unit on one side of the filling body, the corresponding hydraulic push rod 1 5 pushes the support part 9 to move to the working position. At the same time, the corresponding hydraulic push rod 2 10 supports the side of the support part 9 and adaptively adjusts the support angle of the support part 9. It supports the side of the filling body and cooperates with the top beam 3 to form a support working surface with a certain angle on the side of the filling body, thereby increasing the stability of the support at the filling body and preventing serious deformation of the filling body.

[0025] Although the embodiments of the present invention have been shown and described, it will be 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 that 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 this, and without departing from the purpose of the invention of the present invention, they can design structural methods and embodiments similar to the technical solution without creativity, and they should all fall within the scope of protection of the present invention. Each component of the present application can be driven by a corresponding external motor, which is a prior art and will not be described in detail in this application.

Claims

1. A tunnel hydraulic support equipment, characterized in that: include: The relatively distributed bases have corresponding supporting forces; Hydraulic columns are respectively set on the base to perform corresponding support and lifting operations; A sliding channel is defined inside the top beam, and two ends of the sliding channel extend to two ends of the top beam respectively. A fixed plate is provided in the middle of the sliding channel to separate the sliding channel. A hydraulic push rod is provided on both sides of the fixed plate. The top beam is connected to the lifting end of the hydraulic column and acts on the roadway roof; The side support units are symmetrically distributed at both ends of the top beam, and the side support operation position can be adjusted according to the width of the tunnel; The side guard unit comprises: A sliding end, the sliding end slides along a corresponding sliding channel, and the telescopic end of the hydraulic push rod 1 is connected to the sliding end of the side guard plate; A supporting portion, hinged to the sliding end and located outside the corresponding end of the top beam, for lateral support; The second hydraulic push rod is installed at the bottom of the top beam through a fixed vertical plate, and the telescopic end is connected to a push plate through a universal joint, and the push plate can be pushed to the supporting part.

2. The tunnel hydraulic support equipment according to claim 1, characterized in that: A protective shell is provided on the base, and the telescopic end of the hydraulic column can be movably extended out of the top end of the protective shell.

3. The tunnel hydraulic support equipment according to claim 1, characterized in that: The supporting portion is a plate-shaped structural member, and the supporting portion has a predetermined supporting operation length along the height direction of the tunnel.

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