Temporary supporting hydraulic support for tunneling working face

Abstract

The utility model discloses a temporary supporting hydraulic support for a tunneling working face, and relates to the technical field of mine tunnel excavation. The temporary supporting hydraulic support for the tunneling working face comprises a sliding cavity, the outer sides of the left end and the right end of the sliding cavity are sleeved with first connecting bases, a sliding rod is inserted and connected into the sliding cavity, the outer sides of the left end and the right end of the sliding rod are sleeved with second connecting bases, and upper end connecting supports are connected between the first connecting bases and the second connecting bases at the front end and the rear end; a hydraulic cylinder is installed at the lower end of the interior of the longitudinal support, a base is connected to the telescopic end of the lower side of the hydraulic cylinder, the upper end of the base wraps the outer side of the longitudinal support, and a first hydraulic rod is connected between the upper end connecting supports on the left side and the right side; second hydraulic rods are connected to the lower ends between the longitudinal support on the left side and the longitudinal support on the right side, and the telescopic ends of the first hydraulic rods and the telescopic ends of the second hydraulic rods are rotationally connected with transmission plates.

Description

Technical Field

[0001] The utility model relates to the technical field of mine tunnel excavation, in particular to a hydraulic support for temporary support of an excavation working surface. Background Art

[0002] With the construction of modern mines, more and more underground projects require the use of tunnel boring machines for excavation. When tunnel boring machines are excavating, they will cause safety hazards such as soil deformation and unstable covering layers. Therefore, temporary support is required during the excavation of the mine tunnel to ensure the stability of the tunnel and the mining area and prevent accidents caused by loose rocks, crack deformation, etc. Temporary support refers to temporary measures to support and reinforce the tunnel with materials such as steel, wood, anchors, mesh, etc. during the excavation process of the mine to ensure the safety of personnel and equipment. When the existing excavation work faces temporary support hydraulic supports, most of them are manually sent into the interior of the mine tunnel as a whole, and then the hydraulic cylinder is started to support the support. However, the size of the support is large and it is more troublesome to transport. At the same time, during the installation, the silt and slag at the lower end of the hydraulic cylinder need to be cleaned before installation. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides a hydraulic support for temporary support of the excavation work surface, which solves the problem that the existing hydraulic support for temporary support of the excavation work surface needs to be manually moved forward by workers when moving forward, which is troublesome to use.

[0005] (II) Technical solution

[0006] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0007] The utility model provides a temporary support hydraulic support for an excavation working face, comprising: two sliding cavities that are hollow inside and open on left and right sides, wherein a connecting seat 1 is sleeved on the outer sides of the left and right ends of the sliding cavities, a sliding rod is inserted and connected inside the sliding cavity, and a connecting seat 2 is sleeved on the outer sides of the left and right ends of the sliding rod, an upper connecting support is connected between the connecting seat 1 and the connecting seat 2 at the front and rear ends, and the lower ends of the connecting seat 1 and the connecting seat 2 are connected to a longitudinal support, a hydraulic cylinder is installed at the lower end of the longitudinal support, the lower telescopic end of the hydraulic cylinder is connected to a base, chamfers are provided on the left and right sides of the base, and the upper end of the base is wrapped around the outer side of the longitudinal support, and three hydraulic rods 1 are connected in an array between the upper connecting supports on the left and right sides, and the lower ends of the longitudinal support on the left and right sides are connected to the hydraulic rod 2, and the telescopic ends of the hydraulic rod 1 and the hydraulic rod 2 are rotatably connected to a transmission plate, and a support is rotatably connected between the transmission plate and the upper connecting support and the longitudinal support.

[0008] Preferably, a cushion block is connected to the upper ends of the connecting seat 1 and the connecting seat 2, and the upper ends of the connecting seat 1 and the connecting seat 2 are parallel to each other.

[0009] Preferably, the openings on the left and right sides of the sliding cavity are connected with an isolation sleeve, one end of the isolation sleeve is sleeved on the outside of the sliding rod, the isolation sleeve is made of artificial leather, and a rubber sealing ring is provided at the connection between the isolation sleeve and the sliding rod.

[0010] Preferably, a protective net seat is connected to the lower inner ends of the connecting seat one and the connecting seat two, a protective net is arranged on the upper surface of the protective net seat, and the left and right ends of the protective net are fixedly connected to the protective net seat on the inner side of the connecting seat two.

[0011] Preferably, bidirectional hydraulic cylinders are connected to the outer sides of the upper connecting brackets on the left and right sides.

[0012] Preferably, the lower surface of the base is provided with anti-slip patterns.

[0013] Preferably, the sliding cavity, sliding rod, upper connecting bracket, longitudinal bracket and base are all made of high carbon steel.

[0014] (III) Beneficial effects

[0015] The utility model provides a hydraulic support for temporary support of the excavation working surface, which has at least the following beneficial effects compared with the prior art:

[0016] 1. The excavation work surface is supported by a hydraulic support. The hydraulic cylinder at the lower end of the connecting seat is started, and the hydraulic rods 1 and 2 on the left and right sides are extended and retracted. Then the hydraulic cylinder at the lower end of the connecting seat 2 is started, and the hydraulic rods 1 and 2 on the left and right sides are extended and retracted again, and the excavation machine can move forward together.

[0017] 2. The excavation work surface is supported by a temporary hydraulic support. When moving forward, you only need to lift the hydraulic cylinder slightly, and the base will push away the silt and slag to prevent large slag from falling at the bottom, affecting the installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] Figure 2 It is a cross-sectional view of the utility model;

[0020] Figure 3 This is a bottom view of the utility model;

[0021] Figure 4 This is an enlarged view of a connection of the hydraulic rod of the utility model;

[0022] Figure 5 This is an enlarged view of the protective net seat of the utility model.

[0023] In the figure: 1. sliding chamber; 2. connecting seat 1; 3. sliding rod; 4. connecting seat 2; 5. upper end connecting bracket; 6. longitudinal bracket; 7. hydraulic cylinder; 8. base; 9. hydraulic rod 1; 10. hydraulic rod 2; 11. transmission plate; 12. support; 21. pad; 22. isolation sleeve; 23. protection net seat; 24. protection net; 25. two-way hydraulic cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-5 The utility model provides a technical solution: a hydraulic support for temporary support of the excavation working face, comprising: two sliding chambers 1 with hollow interiors and openings on the left and right sides, a connecting seat 2 is sleeved on the outer sides of the left and right ends of the sliding chamber 1, a sliding rod 3 is inserted and connected inside the sliding chamber 1, a connecting seat 2 is sleeved on the outer sides of the left and right ends of the sliding rod 3, an upper connecting bracket 5 is connected between the connecting seat 1 and the connecting seat 2 4 at the front and rear ends, a longitudinal bracket 6 is connected to the lower ends of the connecting seat 1 and the connecting seat 2 4, and the lower end of the longitudinal bracket 6 is installed inside There is a hydraulic cylinder 7, and a base 8 is connected to the telescopic end of the lower side of the hydraulic cylinder 7. Chamfers are provided on the left and right sides of the base 8. The upper end of the base 8 is wrapped around the outer side of the longitudinal bracket 6. Three hydraulic rods 1 9 are connected in an array between the upper connecting brackets 5 on the left and right sides. A hydraulic rod 2 10 is connected to the lower end between the longitudinal bracket 6 on the left and the longitudinal bracket 6 on the right. The telescopic ends of the hydraulic rods 1 9 and 10 are rotatably connected to a transmission plate 11, and a support 12 is rotatably connected between the transmission plate 11 and the upper connecting bracket 5 and the longitudinal bracket 6.

[0026] When in use, after the temporary support hydraulic support for the excavation working face is sent into the interior of the mine tunnel, the hydraulic cylinder 7 at the lower end of the connecting seat 2 4 is started to support the sliding rod 3. At this time, the sliding chamber 1 is slidably connected on the outside of the sliding rod 3, and then the telescopic ends of the hydraulic rod 1 9 and the hydraulic rod 2 10 on the left are contracted, and the telescopic ends of the hydraulic rod 1 9 and the hydraulic rod 2 10 on the right are extended. The sliding rod 3 and the connecting seat 1 2, the longitudinal support 6, and the base 8 will be pulled to the left. The chamfer on the left side of the base 8 will break the silt and slag at the bottom of the mine tunnel, and then the hydraulic Cylinder 7 extends, and then the hydraulic cylinder 7 at the lower end of connecting seat 2 4 contracts. At this time, the sliding rod 3 will slide and connect inside the sliding cavity 1, and then the telescopic ends of hydraulic rod 1 9 and hydraulic rod 2 10 on the left side extend, and the telescopic ends of hydraulic rod 1 9 and hydraulic rod 2 10 on the right side contract. The sliding rod 3 will be pushed to move to the left, and at the same time, the base 8 at the lower end will also break up the silt, slag, etc. below. Then repeat the above steps until the desired position is reached, start all the hydraulic cylinders 7, and let the upper ends of connecting seat 1 2 and connecting seat 2 4 both support the upper end of the mine road to play a supporting role.

[0027] like Figure 1-4 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, a cushion block 21 is connected to the upper ends of the connecting seat 1 2 and the connecting seat 2 4, and the upper ends of the connecting seat 1 2 and the connecting seat 2 4 are parallel to each other.

[0028] From the analysis of the above structure, it can be known that the pad 21 can reduce the friction loss between the upper ends of the connecting seat 1 2 and the connecting seat 2 4. When the sliding rod 3 is located in the middle position of the sliding cavity 1, the upper ends of the connecting seat 1 2 and the connecting seat 2 4 are parallel to each other. When the hydraulic cylinder 7 at the lower end of the connecting seat 1 2 or the connecting seat 2 4 is retracted, the base 8 on the retracted hydraulic cylinder 7 will be higher than the base 8 on the raised hydraulic cylinder 7, so that the sliding cavity 1 and the sliding rod 3 can move normally without being blocked.

[0029] like Figure 1-4 As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, the openings on the left and right sides of the sliding cavity 1 are connected with an isolation sleeve 22, one end of the isolation sleeve 22 is sleeved on the outside of the sliding rod 3, the isolation sleeve 22 is made of artificial leather, and a rubber sealing ring is provided at the connection between the isolation sleeve 22 and the sliding rod 3.

[0030] From the analysis of the above structure, it can be known that after the excavation working face temporary support hydraulic support enters the mine tunnel, some slag above will fall onto the upper surface of the sliding rod 3, and when the sliding rod 3 moves left and right, these slag will be pushed away by the isolation sleeve 22, preventing the contact surface between the sliding rod 3 and the sliding cavity 1 from having slag, increasing friction loss and extending the service life.

[0031] like Figure 1-5As shown, an embodiment of the utility model provides an implementation method. Based on the above implementation method, the connecting seat 1 2 and the lower end of the inner side of the connecting seat 2 4 are connected with a protective net seat 23, and a protective net 24 is arranged on the upper surface of the protective net seat 23. The left and right ends of the protective net 24 are fixedly connected to the protective net seat 23 on the inner side of the connecting seat 2 4.

[0032] From the analysis of the above structure, it can be seen that the left and right ends of the protective net 24 are welded to the upper surface of the protective net seat 23 inside the connecting seat 24. When some gravel, slag and other materials fall from above, they will be intercepted by the protective net seat 23 to prevent the falling rocks from injuring the staff.

[0033] like Figure 1-3 As shown, the embodiment of the utility model provides an implementation method. Based on the above implementation method, the outer sides of the upper connecting brackets 5 on the left and right sides are connected to bidirectional hydraulic cylinders 25.

[0034] From the analysis of the above structure, it can be seen that after the temporary support hydraulic support of the excavation working face reaches the required position, the bidirectional hydraulic cylinder 25 is started, and the telescopic ends on the front and rear sides of the bidirectional hydraulic cylinder 25 will support the side wall of the mine tunnel to prevent the temporary support hydraulic support of the excavation working face from shifting.

[0035] like Figure 1-3 As shown, the embodiment of the utility model provides an implementation method. Based on the above implementation method, the lower surface of the base 8 is provided with anti-slip patterns.

[0036] From the analysis of the above structure, it can be known that the anti-skid pattern provided on the lower surface of the base 8 can play an anti-skid role and prevent slipping due to the tilt inside the inclined mine tunnel.

[0037] like Figure 1-3 As shown, the embodiment of the utility model provides an implementation method. Based on the above implementation method, the sliding cavity 1, the sliding rod 3, the upper end connecting bracket 5, the longitudinal bracket 6 and the base 8 are all made of high carbon steel.

[0038] From the analysis of the above structure, it can be known that the sliding cavity 1 and the sliding rod 3 need to rub against each other. The use of high-carbon steel can reduce the loss caused by friction. The upper connecting bracket 5 plays a connecting role. The use of high-carbon steel can prevent breakage. The longitudinal bracket 6 and the base 8 both play a supporting role. High-carbon steel has a high strength and can prevent bending and deformation.

[0039] 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.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the 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.

Claims

1. A hydraulic support for temporary support of a tunneling working face, characterized in that: include: Two sliding chambers (1) are hollow inside and open on both sides. A connecting seat (2) is sleeved on the outer sides of the left and right ends of the sliding chamber (1). A sliding rod (3) is inserted and connected inside the sliding chamber (1). A connecting seat (4) is sleeved on the outer sides of the left and right ends of the sliding rod (3). An upper connecting bracket (5) is connected between the connecting seat (2) and the connecting seat (4) at the front and rear ends. A longitudinal bracket (6) is connected at the lower ends of the connecting seat (2) and the connecting seat (4). A hydraulic cylinder (7) is installed at the lower end of the longitudinal bracket (6). The telescopic end of the lower side of the hydraulic cylinder (7) A base (8) is connected, and chamfers are provided on both left and right sides of the base (8). The upper end of the base (8) is wrapped around the outer side of the longitudinal bracket (6). Three hydraulic rods (9) are connected in an array between the upper connecting brackets (5) on the left and right sides. Hydraulic rods (10) are connected at the lower ends between the longitudinal bracket (6) on the left and the longitudinal bracket (6) on the right. The telescopic ends of the hydraulic rods (9) and the hydraulic rods (10) are rotatably connected to a transmission plate (11). A support (12) is rotatably connected between the transmission plate (11) and the upper connecting bracket (5) and the longitudinal bracket (6).

2. A hydraulic support for temporary support of a tunneling working face according to claim 1, characterized in that: The upper ends of the connecting seat 1 (2) and the connecting seat 2 (4) are connected with a cushion block (21), and the upper ends of the connecting seat 1 (2) and the connecting seat 2 (4) are parallel to each other.

3. The hydraulic support for temporary support of the excavation working face according to claim 1, characterized in that: The openings on the left and right sides of the sliding cavity (1) are connected with an isolation sleeve (22), one end of the isolation sleeve (22) is sleeved on the outside of the sliding rod (3), the isolation sleeve (22) is made of artificial leather, and a rubber sealing ring is provided at the connection between the isolation sleeve (22) and the sliding rod (3).

4. The hydraulic support for temporary support of the excavation working face according to claim 1, characterized in that: The lower inner ends of the connecting seat 1 (2) and the connecting seat 2 (4) are connected with a protective net seat (23), the upper surface of the protective net seat (23) is provided with a protective net (24), and the left and right ends of the protective net (24) are fixedly connected to the protective net seat (23) on the inner side of the connecting seat 2 (4).

5. The hydraulic support for temporary support of the excavation working face according to claim 1, characterized in that: The outer sides of the upper connection brackets (5) on the left and right sides are connected to bidirectional hydraulic cylinders (25).

6. The hydraulic support for temporary support of the excavation working face according to claim 1, characterized in that: The lower surface of the base (8) is provided with anti-slip patterns.

7. The hydraulic support for temporary support of the excavation working face according to claim 1, characterized in that: The sliding cavity (1), the sliding rod (3), the upper end connecting bracket (5), the longitudinal bracket (6) and the base (8) are all made of high carbon steel.

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