A deep roadway key position compensating support structure

Abstract

The application discloses a kind of deep roadway key position compensation supporting structure, including support seat, the bottom of support seat both sides are fixedly connected with support leg, the side surface of support leg is fixedly connected with protection device, and the top of support seat is fixedly connected with support device;The support device includes: support table, the support table has arc structure, and the hydraulic cavity being arranged in the inside of support table, one side of the hydraulic cavity is communicated with hydraulic cylinder by hydraulic pipe, and the hydraulic cylinder is fixedly connected with support seat by support;Rotary groove is opened in the top of support table, and support cam is rotatably connected to the inner wall of rotary groove, and the application relates to roadway support technical field.This kind of deep roadway key position compensation supporting structure can adapt to different flatness of roadway by multiple groups of support cam, so that the recessed area of roadway top can also be supported by support cam, and the supporting effect is better.

Description

Technical Field

[0001] This invention relates to the field of tunnel support technology, specifically a compensating support structure for key parts of deep tunnels. Background Technology

[0002] Roadways are various passages drilled between the surface and the ore body, used for ore transportation, ventilation, drainage, pedestrian access, and various necessary preparatory works for new ore extraction by metallurgical equipment. These passages are collectively called roadways. During tunnel exploration and excavation, blasting and loading operations will generate various toxic and harmful gases and dust. In order to ensure safe production and the health of workers in the tunnel, fresh air must be supplied to the tunneling work. According to the different methods of ventilation fans to deliver fresh air to the tunneling face, they can be divided into: forced in, extracted and mixed.

[0003] Some key parts of the tunnel need to be compensated and supported, but the support devices currently used are usually not convenient to adapt to the concave parts of the tunnel top, resulting in the concave parts not being effectively supported. At the same time, it is also inconvenient to support the sides of the tunnel, resulting in poor support effect. Summary of the Invention

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a compensation support structure for key parts of deep roadways, including a support base, with support legs fixedly connected to both sides of the bottom of the support base, protective devices fixedly connected to the sides of the support legs, and a support device fixedly connected to the top of the support base;

[0005] The support device includes:

[0006] A support platform having an arc-shaped structure and a hydraulic cavity disposed inside the support platform. A hydraulic cylinder is connected to one side of the hydraulic cavity via a hydraulic pipe. The hydraulic cylinder is fixedly connected to the support base via a bracket.

[0007] A rotating groove is formed on the top of the support platform. A support cam is rotatably connected to the inner wall of the rotating groove. A spring is provided between the end of the support cam and the inner wall of the rotating groove.

[0008] The extrusion hole is located between the rotating groove and the hydraulic cavity. Both ends of the extrusion hole are connected to the rotating groove and the hydraulic cavity, respectively. An extrusion plug is slidably connected to the inner wall of the extrusion hole, and an extrusion plate is fixedly connected to the top of the extrusion plug. Multiple sets of support cams can be used to adapt to roadways with different flatness, so that the concave area at the top of the roadway can also be supported by the support cams, resulting in a good support effect.

[0009] Preferably, the bottom of the support platform is fixedly connected to the top of the support base, and multiple sets of rotating grooves are provided and evenly distributed on the support platform.

[0010] Preferably, the extrusion plate includes an extrusion plate body, a rotating seat is fixedly connected to the top of the extrusion plate body, a rotating top rod is rotatably connected to the inner wall of the rotating seat, and limit strips are fixedly connected to both sides of the extrusion plate body.

[0011] Preferably, the bottom of the extrusion plate is fixedly connected to the top of the extrusion plug, and the limiting strip extends to the inner wall of the extrusion hole on the side away from the extrusion plate and slides to the inner wall of the extrusion hole, so as to reduce the wear between the extrusion plate and the support cam by rotating the top rod and to protect the device components.

[0012] Preferably, the support base includes a base, a lifting support platform is fixedly connected to the top center of the base, a top seat is fixedly connected to the top of the lifting support platform, a movable slide groove is provided at the top edge of the base, a compression telescopic rod is fixedly connected to one end of the inner wall of the movable slide groove, a compression top rod is rotatably connected to the end of the compression telescopic rod, and the end of the compression top rod away from the compression telescopic rod is rotatably connected to the bottom of the top seat. By setting the compression telescopic rod and the compression top rod, the edge of the support base can be strengthened, avoiding uneven force on the support base and causing tilting, thereby improving the support effect.

[0013] Preferably, the bottom of the base is fixedly connected to the top of the support leg, and the top of the top seat is fixedly connected to the bottom of the support platform.

[0014] Preferably, the movable slide is provided in two sets and symmetrically distributed on the top of the base, and the portion of the top of the base located on one side of the movable slide is provided with a reinforcing groove.

[0015] Preferably, the protective device includes a protective base, a compression airbag is fixedly connected to one side of the protective base, a compression pad is fixedly connected to the side of the compression airbag away from the protective base, a pad block is fixedly connected to the side of the compression pad away from the compression airbag, a support frame is fixedly connected to the inner wall of the compression airbag, one side of the support frame passes through the compression airbag and is fixedly connected to the side of the protective base, and a compression head is fixedly connected to the side of the support frame away from the protective base.

[0016] Preferably, the protective base is fixedly connected to the side of the support leg on the side away from the compression airbag, and an alarm is fixedly connected to the protective base.

[0017] Preferably, a pressure detector is fixedly connected to the inner wall of the compression airbag, and the pressure detector is electrically connected to an alarm on the protective base. The support frame is set as a telescopic bracket, which facilitates timely maintenance by reminding staff to avoid safety accidents caused by damage due to the support device reaching its bearing limit, thus ensuring good safety in use.

[0018] This invention provides a compensating support structure for key components of deep roadways. It has the following beneficial effects:

[0019] 1. This is a compensation support structure for key parts of deep roadways, equipped with a support device. During use, the roadway top is supported by the support device on the support base. Simultaneously, hydraulic oil is injected into the hydraulic cavity through a hydraulic cylinder. The hydraulic oil inside the hydraulic cavity enters the extrusion hole. The extrusion plug and extrusion plate inside the bald extrusion hole move towards the rotating groove. The extrusion plate pushes the support cam to rotate. As the support cam rotates, its convex side gradually approaches the roadway top, thus supporting the roadway top through the support cam. Multiple sets of support cams can be used to adapt to roadways with different flatness, so that the concave area of ​​the roadway top can also be supported by the support cam, resulting in a good support effect.

[0020] 2. This kind of compensation support structure for key parts of deep roadways is equipped with a squeezing plate. When the squeezing plate moves upward under the push of the squeezing plug, it drives the rotating push rod on it to move upward and bring the rotating push rod close to the side of the support cam. The rotating push rod pushes the support cam to rotate. While pushing the support cam to rotate, the rotating push rod can roll relative to the support cam. This rolling of the rotating push rod can reduce the wear between the squeezing plate and the support cam and protect the device components.

[0021] 3. This type of compensation support structure for key parts of deep roadways is equipped with a support seat. When it is necessary to support the top of the roadway, the top seat is raised by the lifting support platform. At the same time, the compression telescopic rod extends and pushes the compression top rod to move inside the moving slide. The top seat moves upward under the push of the lifting support platform and the compression top rod, and drives the support device to support the top of the roadway. By setting the compression telescopic rod and the compression top rod, the edge of the support seat can be strengthened to avoid uneven force on the support seat and tilting, thereby improving the support effect.

[0022] 4. This type of compensation support structure for key parts of deep roadways is equipped with a protective device. During use, the support frame inside the protective device extends, driving the extrusion head to move. The extrusion head, through the extrusion airbag, drives the extrusion pad and pad block to press against the roadway sidewall, thereby supporting the roadway sidewall. As the pressure of the roadway sidewall on the support frame gradually increases, the support frame gradually contracts, and the pressure on the extrusion airbag gradually increases, causing the air pressure inside the extrusion airbag to gradually increase. When the deformation of the inner sidewall of the roadway reaches a certain level, that is, when the air pressure detector detects that the pressure inside the extrusion airbag has reached a certain level, the alarm on the protective base sounds an alarm, which facilitates timely maintenance by the staff and avoids safety accidents caused by the support device reaching its bearing limit and being damaged. It has good safety in use. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the compensation and support structure for key parts of deep roadways according to the present invention;

[0024] Figure 2This is a schematic diagram of the support device structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the internal structure of the support device of the present invention;

[0026] Figure 4 This is a schematic diagram of the extrusion plate structure of the present invention;

[0027] Figure 5 This is a schematic diagram of the support structure of the present invention;

[0028] Figure 6 This is a schematic diagram of the internal structure of the movable chute of the present invention;

[0029] Figure 7 This is a schematic diagram of the protective device structure of the present invention;

[0030] Figure 8 This is a schematic diagram of the internal structure of the protective device of the present invention.

[0031] In the diagram: 1. Support seat; 11. Base; 12. Lifting support platform; 13. Top seat; 14. Moving slide; 15. Extrusion telescopic rod; 16. Extrusion top rod; 2. Support leg; 3. Protective device; 31. Protective base; 32. Extrusion airbag; 33. Extrusion pad; 34. Pad block; 35. Support frame; 36. Extrusion head; 37. Air pressure detector; 4. Support device; 41. Support platform; 42. Hydraulic cavity; 43. Hydraulic cylinder; 44. Rotating groove; 45. Support cam; 46. Extrusion hole; 47. Extrusion plug; 48. Extrusion plate; 481. Extrusion plate body; 482. Rotating seat; 483. Rotating top rod; 484. Limiting strip. Detailed Implementation

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Example 1:

[0034] Please see Figures 1-4 The present invention provides a technical solution: a compensation support structure for key parts of deep roadways, including a support base 1, characterized in that: support legs 2 are fixedly connected to both sides of the bottom of the support base 1, protective devices 3 are fixedly connected to the sides of the support legs 2, and a support device 4 is fixedly connected to the top of the support base 1.

[0035] Support device 4 includes:

[0036] The support platform 41 has an arc-shaped structure and a hydraulic cavity 42 disposed inside the support platform 41. A hydraulic cylinder 43 is connected to one side of the hydraulic cavity 42 through a hydraulic pipe. The hydraulic cylinder 43 is fixedly connected to the support base 1 through a bracket.

[0037] A rotating groove 44 is formed on the top of the support platform 41. A support cam 45 is rotatably connected to the inner wall of the rotating groove 44. A spring is provided between the end of the support cam 45 and the inner wall of the rotating groove 44.

[0038] The extrusion hole 46 is located between the rotating groove 44 and the hydraulic cavity 42. Both ends of the extrusion hole 46 are connected to the rotating groove 44 and the hydraulic cavity 42 respectively. An extrusion plug 47 is slidably connected to the inner wall of the extrusion hole 46, and an extrusion plate 48 is fixedly connected to the top of the extrusion plug 47.

[0039] The bottom of the support platform 41 is fixedly connected to the top of the support base 1, and multiple sets of rotating grooves 44 are provided and evenly distributed on the support platform 41.

[0040] A support device 4 is provided. During use, the support device 4 on the support base 1 can support the top of the roadway. At the same time, hydraulic oil is injected into the hydraulic cavity 42 through the hydraulic cylinder 43. The hydraulic oil inside the hydraulic cavity 42 enters the extrusion hole 46. The extrusion plug 47 and extrusion plate 48 inside the bald extrusion hole 46 move toward the rotating groove 44. The extrusion plate 48 pushes the support cam 45 to rotate. As the support cam 45 rotates, its convex side gradually approaches the top of the roadway, thus supporting the top of the roadway. Multiple sets of support cams 45 can be used to adapt to roadways with different flatness, so that the concave area of ​​the roadway top can also be supported by the support cam 45, resulting in a good support effect.

[0041] The extrusion plate 48 includes an extrusion plate body 481. A rotating seat 482 is fixedly connected to the top of the extrusion plate body 481. A rotating push rod 483 is rotatably connected to the inner wall of the rotating seat 482. Limiting strips 484 are fixedly connected to both sides of the extrusion plate body 481. The bottom of the extrusion plate body 481 is fixedly connected to the top of the extrusion plug 47. The side of the limiting strip 484 away from the extrusion plate body 481 extends to the inner wall of the extrusion hole 46 and slides with the inner wall of the extrusion hole 46. When the extrusion plate 48 moves upward under the push of the extrusion plug 47, it drives the rotating push rod 483 on it to move upward and bring the rotating push rod 483 close to the side of the support cam 45. The rotating push rod 483 pushes the support cam 45 to rotate. While pushing the support cam 45 to rotate, the rotating push rod 483 can roll relative to the support cam 45. The rolling of the rotating push rod 483 can reduce the wear between the extrusion plate 48 and the support cam 45 and protect the device components.

[0042] Example 2:

[0043] Please see Figures 1-6 Based on Embodiment 1, the present invention provides a technical solution: the support base 1 includes a base 11, a lifting support platform 12 is fixedly connected to the top center of the base 11, a top seat 13 is fixedly connected to the top of the lifting support platform 12, a movable slide groove 14 is provided at the top edge of the base 1, a compression telescopic rod 15 is fixedly connected to one end of the inner wall of the movable slide groove 14, a compression top rod 16 is rotatably connected to the end of the compression telescopic rod 15, and the end of the compression top rod 16 away from the compression telescopic rod 15 is rotatably connected to the bottom of the top seat 13. The bottom of the base 11 is fixedly connected to the top of the support leg 2, the top of the top seat 13 is fixedly connected to the bottom of the support platform 41, and the movable slide groove 14 is provided with two sets of Furthermore, the top seats 13 are symmetrically distributed on the top of the base 11. The part of the top of the base 11 located on one side of the movable slide 14 has a reinforcing groove and a support seat 1. When it is necessary to support the top of the roadway, the top seat 13 is raised by the lifting support platform 12. At the same time, the pressing telescopic rod 15 extends and pushes the pressing top rod 16 to move inside the movable slide 14. The top seat 13 moves upward under the push of the lifting support platform 12 and the pressing top rod 16 and drives the support device 4 to support the top of the roadway. By setting the pressing telescopic rod 15 and the pressing top rod 16, the edge of the support seat 1 can be strengthened to avoid uneven force on the support seat 1 and tilting, thereby improving the support effect.

[0044] Example 3:

[0045] Please see Figures 1-8Based on Embodiments 1 and 2, the present invention provides a technical solution: the protective device 3 includes a protective base 31, a compression airbag 32 is fixedly connected to one side of the protective base 31, a compression pad 33 is fixedly connected to the side of the compression airbag 32 away from the protective base 31, a pad block 34 is fixedly connected to the side of the compression pad 33 away from the compression airbag 32, a support frame 35 is fixedly connected to the inner wall of the compression airbag 32, one side of the support frame 35 passes through the compression airbag 32 and is fixedly connected to the side of the protective base 31, a compression head 36 is fixedly connected to the side of the protective base 35 away from the protective base 31, the side of the protective base 31 away from the compression airbag 32 is fixedly connected to the side of the support leg 2, an alarm is fixedly connected to the protective base 31, and a pressure detector 37 is fixedly connected to the inner wall of the compression airbag 32. The pressure detector 37 and the alarm on the protective base 31 are connected together. Electrically connected, the support frame 35 is a telescopic bracket with a protective device 3. During use, the support frame 35 inside the protective device 3 extends to move the extrusion head 36. The extrusion head 36, through the extrusion airbag 32, drives the extrusion pad 33 and pad block 34 to press against the sidewall of the tunnel, thus supporting the sidewall. As the pressure of the tunnel sidewall on the support frame 35 gradually increases, the support frame 35 gradually contracts, and the pressure on the extrusion airbag 32 gradually increases, causing the air pressure inside the extrusion airbag 32 to gradually increase. When the deformation of the inner sidewall of the tunnel reaches a certain level, that is, when the air pressure detector 37 detects that the pressure inside the extrusion airbag 32 has reached a certain level, the alarm on the protective base 31 sounds an alarm, which facilitates timely maintenance by the staff and avoids safety accidents caused by the support device reaching its limit. The safety of use is good.

[0046] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A compensation support structure for key parts of a deep roadway, comprising a support base (1), characterized in that: The support base (1) has support legs (2) fixedly connected to both sides of its bottom, and protective devices (3) fixedly connected to the sides of the support legs (2). The support base (1) has a support device (4) fixedly connected to its top. The support device (4) includes: The support platform (41) has an arc-shaped structure and a hydraulic cavity (42) disposed inside the support platform (41). A hydraulic cylinder (43) is connected to one side of the hydraulic cavity (42) through a hydraulic pipe. The hydraulic cylinder (43) is fixedly connected to the support base (1) through a bracket. A rotating groove (44) is formed on the top of the support platform (41). A support cam (45) is rotatably connected to the inner wall of the rotating groove (44). A spring is provided between the end of the support cam (45) and the inner wall of the rotating groove (44). An extrusion hole (46) is formed between a rotating groove (44) and a hydraulic cavity (42). The two ends of the extrusion hole (46) are connected to the rotating groove (44) and the hydraulic cavity (42) respectively. An extrusion plug (47) is slidably connected to the inner wall of the extrusion hole (46). An extrusion plate (48) is fixedly connected to the top of the extrusion plug (47). The protective device (3) includes a protective base (31), a compression airbag (32) is fixedly connected to one side of the protective base (31), a compression pad (33) is fixedly connected to the side of the compression airbag (32) away from the protective base (31), a pad block (34) is fixedly connected to the side of the compression pad (33) away from the compression airbag (32), a support frame (35) is fixedly connected to the inner wall of the compression airbag (32), one side of the support frame (35) passes through the compression airbag (32) and is fixedly connected to the side of the protective base (31), and a compression head (36) is fixedly connected to the side of the support frame (35) away from the protective base (31). The protective base (31) is fixedly connected to the side of the support leg (2) on the side away from the compression airbag (32), and an alarm is fixedly connected to the protective base (31). The inner wall of the compression airbag (32) is fixedly connected to a pressure detector (37), the pressure detector (37) is electrically connected to an alarm on the protective base (31), and the support frame (35) is configured as a telescopic support.

2. The compensation support structure for key parts of deep roadways according to claim 1, characterized in that: The bottom of the support platform (41) is fixedly connected to the top of the support base (1), and the rotating groove (44) is provided in multiple sets and evenly distributed on the support platform (41).

3. The compensation support structure for key parts of deep roadways according to claim 1, characterized in that: The extrusion plate (48) includes an extrusion plate body (481), a rotating seat (482) is fixedly connected to the top of the extrusion plate body (481), a rotating top rod (483) is rotatably connected to the inner wall of the rotating seat (482), and limit strips (484) are fixedly connected to both sides of the extrusion plate body (481).

4. The compensation support structure for key parts of deep roadways according to claim 3, characterized in that: The bottom of the extrusion plate (481) is fixedly connected to the top of the extrusion plug (47), and the limiting strip (484) extends to the inner wall of the extrusion hole (46) on the side away from the extrusion plate (481) and slides in connection with the inner wall of the extrusion hole (46).

5. A compensation support structure for key parts of a deep roadway according to claim 1, characterized in that: The support base (1) includes a base (11), a lifting support platform (12) is fixedly connected to the top center of the base (11), a top seat (13) is fixedly connected to the top of the lifting support platform (12), a movable slide groove (14) is provided at the top edge of the base (11), a compression telescopic rod (15) is fixedly connected to one end of the inner wall of the movable slide groove (14), a compression top rod (16) is rotatably connected to the end of the compression telescopic rod (15), and the end of the compression top rod (16) away from the compression telescopic rod (15) is rotatably connected to the bottom of the top seat (13).

6. A compensation support structure for key parts of a deep roadway according to claim 5, characterized in that: The bottom of the base (11) is fixedly connected to the top of the support leg (2), and the top of the top seat (13) is fixedly connected to the bottom of the support platform (41).

7. A compensation support structure for key parts of deep roadways according to claim 5, characterized in that: The movable slide (14) is provided in two sets and symmetrically distributed on the top of the base (11). The part of the top of the base (11) located on one side of the movable slide (14) is provided with a reinforcing groove.

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