Anchor rod drill carriage for roadway support

Abstract

The anchor rod drill carriage comprises a carriage body, a first supporting arm is rotatably mounted on the carriage body, a mounting part is mounted on the first supporting arm, and at least two first supporting assemblies are mounted on the mounting part; a second supporting arm is further rotationally connected to the first supporting arm, a second supporting assembly is hinged to the first supporting assembly, and the second supporting arm is used for supporting the second supporting assembly. A first telescopic oil cylinder is installed between the first supporting arm and the vehicle body, and a second telescopic oil cylinder is arranged between the second supporting arm and the first supporting arm. The anchor rod drill carriage has the beneficial effects that the angle of the first supporting arm and the angle of the second supporting arm are adjusted through the first telescopic oil cylinder and the second telescopic oil cylinder, the first supporting assembly and the second supporting assembly are hinged, the junction of the top and the side of a roadway is supported through angle adjustment, and the supporting effect of the anchor rod drill carriage on the roadway is further improved; the supporting device has the advantages of being high in adjustability, comprehensive in supporting, high in applicability and the like.

Description

Technical Field

[0001] This application relates to the field of tunnel excavation and support technology, and in particular to a bolt drilling rig for tunnel support. Background Technology

[0002] In tunnel excavation projects, anchor bolts are typically inserted into the tunnel to reinforce its structure and prevent collapse. However, the insertion of anchor bolts can compress the soil around the insertion point, posing a risk of soil falling and injuring workers. Therefore, to improve construction safety, support components are usually installed on the anchor bolt drilling rig to support the tunnel walls.

[0003] Currently, the support components on bolt drilling rigs can generally only support the top or sides of the roadway, which is a safety defect. In addition, the curvature of the roadway top may vary in actual application. If the curvature of the roadway changes, the original support components may not be able to fit against the roadway wall, resulting in an insignificant support effect. Utility Model Content

[0004] One objective of this application is to provide a bolt drilling rig for roadway support that can solve at least one of the defects in the aforementioned background art.

[0005] To achieve at least one of the above objectives, the technical solution adopted in this application is as follows: a rock bolt drilling rig for roadway support, comprising a vehicle body, a first support arm rotatably mounted on the vehicle body, an mounting part mounted on the first support arm, and at least two first support components mounted on the mounting part; a second support arm is also rotatably connected to the first support arm, and a second support component is hinged to the first support component, the second support arm being used to support the second support component; a first telescopic cylinder is installed between the first support arm and the vehicle body, and a second telescopic cylinder is provided between the second support arm and the first support arm.

[0006] With the above settings, the support angles of the first and second support arms can be changed according to actual needs during construction by using the first and second telescopic cylinders, so that the first and second support components fit more closely to the roadway. In addition, the hinged connection between the first and second support components also ensures that there are no support breaks between the two support components, so as to support the transition zone from the side to the top of the roadway.

[0007] Preferably, the first support component includes a movable section and a fixed section, the movable section being slidably mounted on the fixed section, and the engagement depth between the movable section and the fixed section being adjustable; the fixed section is rotatably connected to the mounting part, the movable section is hinged to the second support component, and the mounting part has a telescopic function. This configuration allows for adjustment of the engagement depth between the movable section and the fixed section according to actual support needs, further improving the flexibility of the device.

[0008] Preferably, the second support assembly includes at least two connecting rods and at least one pair of hinged support nets, the support nets being fixedly connected to the connecting rods; the connecting rods are hinged to the moving section; and the second support arm is used to support the hinge points of the two hinged support nets. This configuration provides more stable support to the roadway through the support nets, and after construction is completed, the two paired support nets can be folded to reduce the overall size of the bolt drilling rig.

[0009] Preferably, the connecting rod is provided with a protrusion, and the moving section is provided with a through hole for engaging the protrusion. This arrangement allows the included angle between the first support assembly and the second support assembly to be adjusted by the rotational engagement of the protrusion and the through hole, further defining the adjustment path of the first and second support assemblies.

[0010] Preferably, the perforation is U-shaped. This design further reduces the difficulty of disassembling the first and second support components.

[0011] Preferably, a mounting base is installed on the moving segment or the connecting rod, and an adjustable limiting block is installed on the mounting base. With this configuration, the angle between the first support assembly and the second support assembly can be changed by adjusting the extension distance of the limiting block on the mounting base.

[0012] Preferably, the mounting part is hinged to the first support arm, and a top support is also provided on the mounting part. This configuration allows for more stable support of the roadway through the top support in conjunction with the first support assembly.

[0013] Preferably, the top support is T-shaped, with the side of the top support used to cooperate in supporting the roadway being curved. This configuration allows the top support to fit more closely to the roadway wall in the support of arched roadways, ensuring a more uniform stress distribution in the area supported by the top support.

[0014] Preferably, the first support arm is telescopic and includes a first telescopic section, a second telescopic section, and a rotating section, which are sequentially connected. The telescopic rod of the first telescopic cylinder is rotatably connected to the rotating section, and the mounting part is installed on the first telescopic section. This configuration allows the length of the first support arm to be adjusted according to actual needs, enabling the device to adapt to tunnels of more sizes.

[0015] Preferably, the second support arm is telescopic, comprising an adjusting section and a connecting section, the connecting section being rotatably connected to the telescopic rod of the second telescopic cylinder; the adjusting section is slidably installed on the connecting section, and the engagement depth between the adjusting section and the connecting section is adjustable. This configuration allows the overall length of the second support arm to be changed via the adjusting section. When the position of the anchor drilling rig is difficult to adjust, the length of the second support arm can be changed to make the second support assembly fit more closely to the roadway.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] In this invention, the first and second support arms are angle-adjusted via a first and a second telescopic hydraulic cylinder, allowing for adjustment of the support points according to actual needs. The first and second support components are hinged together, and the angle adjustment provides support at the junction of the roadway top and side, further improving the support effect of the bolt drilling rig on the roadway.

[0018] The first and second support arms have telescopic functions. When the anchor drilling rig is unable to move due to its own size or other reasons, the first and second support components can be transferred to the roadway wall through the telescopic function. After construction is completed, the support nets set in pairs can be folded in half to reduce the overall size of the anchor drilling rig. This utility model has high adjustability, comprehensive support, and strong applicability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the anchor drilling rig in this application. Figure 1 .

[0020] Figure 2 for Figure 1 A magnified structural diagram of part A in the middle.

[0021] Figure 3 for Figure 1 A magnified structural diagram of local area B in the middle.

[0022] Figure 4 This is a schematic diagram of the overall structure of the anchor drilling rig in this application. Figure 2 .

[0023] Figure 5 This is a schematic diagram of the overall structure of the anchor drilling rig in this application. Figure 3 .

[0024] Figure 6 This is a schematic diagram of the overall structure of the anchor drilling rig in this application. Figure 4 .

[0025] Figure 7 for Figure 6A magnified structural diagram of point C in the middle section.

[0026] In the diagram: 1. First support assembly; 11. Fixed section; 12. Moving section; 100. First support arm; 101. First telescopic section; 102. Second telescopic section; 103. Rotating section; 110. First limiting rod; 120. Perforation; 121. First limiting groove; 2. Second support assembly; 21. Connecting rod; 22. Support net; 200. Second support arm; 201. Connecting section; 202. Adjusting section; 210. Protrusion; 3. Vehicle body; 300. Mounting part; 301. First telescopic cylinder; 302. Second telescopic cylinder; 400. Top support; 500. Second limiting rod; 501. Second limiting groove; 600. Mounting seat; 601. Limiting block. Detailed Implementation

[0027] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0028] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0029] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0030] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0031] One aspect of this application provides a bolt drilling rig for roadway support, such as... Figure 1 , Figure 2 and Figure 3As shown, one preferred embodiment includes a vehicle body 3, on which a first support arm 100 is rotatably mounted. A mounting portion 300 is mounted on the first support arm 100, and two first support components 1 are mounted on the mounting portion 300 to support the tunnel wall. To further improve the support effect of the rock bolt drilling rig, a second support arm 200 is rotatably connected to the first support arm 100, and a second support component 2 is hinged to the first support component 1, further increasing the effective support area. The second support arm 200 provides support for the second support component 2. When support is needed for the transition zone from the side to the top of the tunnel, tunnels of different sizes can be supported by changing the angle between the first support component 1 and the second support component 2. Compared with traditional support methods, this invention has stronger applicability.

[0032] Specifically, such as Figure 2 and Figure 4 As shown, in order to enable the first support component 1 and the second support component 2 to quickly reach the support area, a first telescopic cylinder 301 is installed between the first support arm 100 and the vehicle body 3, and a second telescopic cylinder 302 is installed between the second support arm 200 and the first support arm 100. During the construction process, the support angle of the first support arm 100 and the second support arm 200 can be changed by the first telescopic cylinder 301 and the second telescopic cylinder 302 according to actual needs, so that the first support component 1 and the second support component 2 fit more closely to the roadway.

[0033] To further increase the effective support area of ​​the anchor drilling rig, in this embodiment, as follows: Figure 1 and Figure 3 As shown, the first support component 1 includes a fixed section 11 and a movable section 12. The movable section 12 is slidably mounted on the fixed section 11, and the engagement depth between the movable section 12 and the fixed section 11 is adjustable to freely adjust the support area of ​​the first support component 1. The fixed section 11 is rotatably connected to the mounting part 300, and the movable section 12 is hinged to the second support component 2 to ensure that the angle between the first support component 1 and the second support component 2 is adjustable. In addition, the mounting part 300 can be designed as a telescopic rod to further increase the spacing between the first support components 1 on both sides, thereby increasing the support area of ​​the anchor drilling rig.

[0034] Specifically, such as Figure 3As shown, multiple first limiting grooves 121 are provided along the long side of the moving section 12, and a detachable first limiting rod 110 is inserted into the fixed section 11, thereby achieving adjustable fitting depth between the moving section 12 and the fixed section 11. When it is necessary to change the support area, the first limiting rod 110 can be pulled out and the fitting depth of the moving section 12 can be changed according to the actual needs. Then, the first limiting groove 121 is aligned with the insertion hole of the first limiting rod 110, and then the first limiting rod 110 is inserted into the corresponding first limiting groove 121, thereby locking the fitting depth between the moving section 12 and the fixed section 11.

[0035] In this embodiment, as Figure 4 and Figure 5 As shown, the second support assembly 2 includes two connecting rods 21 and three pairs of support nets 22. The adjacent ends of the two pairs of support nets 22 are hinged together, and the other ends are fixedly connected to the connecting rods 21. Multiple pairs of support nets 22 provide more stable support for the roadway. During support operations, the second support arm 200 can be used to support the hinge points between the support nets 22 to ensure that the support nets 22 can open smoothly. After construction is completed, the second support arm 200 is retracted, and then the two pairs of support nets 22 are folded to reduce the overall volume of the bolt drilling rig. Additionally, the connecting section 201 is hinged to the moving section 12 to facilitate changing the included angle between the first support assembly 1 and the second support assembly 2.

[0036] Furthermore, such as Figure 3 As shown, the connecting rod 21 is provided with a protrusion 210, and the moving section 12 is provided with a through hole 120 for engaging the protrusion 210. The protrusion 210 can be inserted into the through hole 120 to engage with the protrusion, thereby adjusting the included angle between the first support assembly 1 and the second support assembly 2 and limiting the rotation path of the first support assembly 1 and the second support assembly 2.

[0037] It should be noted that the shape of the perforation 120 includes, but is not limited to, circular holes and "U"-shaped holes. When the perforation 120 is U-shaped, it can further reduce the difficulty of disassembling the first support assembly 1 and the second support assembly 2.

[0038] It should be noted that when adjusting the angle, if the included angle between the first support component 1 and the second support component 2 is too small, it may over-compress the hinge point and deform it; in addition, the included angle between the first support component 1 and the second support component 2 is also different for roadways of different sizes and types.

[0039] Therefore, in some embodiments of this application, such as Figure 3As shown, a mounting base 600 is installed on the moving rod or connecting rod 21, and an adjustable limiting block 601 is installed on the mounting base 600 to limit the minimum included angle between the moving section 12 and the connecting rod 21. Construction personnel can also adjust the limiting block 601 according to the actual situation to change the minimum included angle between the first support component 1 and the second support component 2, ensuring that the device can adapt to different support scenarios.

[0040] It should be understood that the top of some tunnels is arched. If only the first support component 1 is used, it can only support the outer ring of the tunnel. In this case, the highest point of the tunnel may collapse due to lack of support. Therefore, in some embodiments of this application, such as Figure 4 As shown, the top of the installation part 300 is also provided with a top support 400. The top support 400, together with the first support component 1, provides more stable support for the roadway, ensuring that the top of the roadway is subjected to uniform force and preventing the highest point of the support area from collapsing.

[0041] Specifically, such as Figure 4 As shown, the top support 400 is T-shaped, and the side of the top support 400 used to support the tunnel is curved to ensure that the top support 400 can fit against the top of the arched tunnel, further improving the support stability of the device.

[0042] In this embodiment, as Figure 6 As shown, the first support arm 100 is telescopic and includes a first telescopic section 101, a second telescopic section 102, and a rotating section 103, which are sequentially connected. The telescopic rod of the first telescopic cylinder 301 is rotatably connected to the rotating section 103, and the mounting part 300 is installed on the first telescopic section 101. Construction personnel can adjust the length of the first support arm 100 according to actual needs, allowing the anchor bolt trolley to support roadways of more dimensions.

[0043] In this embodiment, as Figure 6 As shown, the second support arm 200 is telescopic and includes an adjusting section 202 and a connecting section 201. The connecting section 201 is rotatably connected to the telescopic rod of the second telescopic cylinder 302 to facilitate adjustment of the angle of the second support arm 200. The adjusting section 202 is slidably installed on the connecting section 201, and the engagement depth between the adjusting section 202 and the connecting section 201 is adjustable. By changing the overall length of the second support arm 200 through the adjusting section 202, when the position of the anchor drilling rig is difficult to adjust, the length of the second support arm 200 can be changed to make the second support assembly 2 fit more closely to the roadway.

[0044] Specifically, such as Figure 7As shown, the adjusting section 202 has multiple second limiting grooves 501 along its long side, and a second limiting rod 500 is inserted into the connecting section 201. The fitting depth of the adjusting section 202 is limited by the limiting cooperation between the second limiting rod 500 and the second limiting groove 501. When it is necessary to change the length of the second support arm 200, the second limiting rod 500 can be pulled out, and the fitting depth of the adjusting section 202 can be changed according to actual needs. Then, the second limiting groove 501 is aligned with the insertion hole of the second limiting rod 500, and then the second limiting rod 500 is inserted into the corresponding second limiting groove 501 to lock the fitting depth of the adjusting section 202 and the connecting section 201.

[0045] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A bolt drilling rig for roadway support, comprising a vehicle body (3), characterized in that, A first support arm (100) is rotatably mounted on the vehicle body (3). A mounting part (300) is mounted on the first support arm (100). At least two first support components (1) are mounted on the mounting part (300). A second support arm (200) is also rotatably connected to the first support arm (100). A second support component (2) is hinged to the first support component (1). The second support arm (200) is used to support the second support component (2). A first telescopic cylinder (301) is installed between the first support arm (100) and the vehicle body (3). A second telescopic cylinder (302) is provided between the second support arm (200) and the first support arm (100).

2. The rock bolt drilling rig for roadway support as described in claim 1, characterized in that, The first support assembly (1) includes a movable section (12) and a fixed section (11). The movable section (12) is slidably mounted on the fixed section (11). The engagement depth of the movable section (12) and the fixed section (11) is adjustable. The fixed section (11) is rotatably connected to the mounting part (300). The movable section (12) is hinged to the second support assembly (2).

3. The rock bolt drilling rig for roadway support as described in claim 2, characterized in that, The second support assembly (2) includes at least two connecting rods (21) and at least one pair of mutually hinged support nets (22), the support nets (22) being fixedly connected to the connecting rods (21), and the connecting rods (21) being hinged to the moving section (12); the second support arm (200) is used to support the hinge points of the two hinged support nets (22).

4. The rock bolt drilling rig for roadway support as described in claim 3, characterized in that, The connecting rod (21) is provided with a protrusion (210), and the moving section (12) is provided with a through hole (120) for cooperating with the protrusion (210).

5. The bolt drilling rig for roadway support as described in claim 4, characterized in that, The perforation (120) is U-shaped.

6. The rock bolt drilling rig for roadway support as described in claim 4, characterized in that, A mounting base (600) is installed on the moving section (12) or the connecting rod (21), and an adjustable limiting block (601) is installed on the mounting base.

7. The rock bolt drilling rig for roadway support as described in claim 1, characterized in that, The mounting part (300) is hinged to the first support arm (100), and a top support (400) is also provided on the mounting part (300).

8. The rock bolt drilling rig for roadway support as described in claim 7, characterized in that, The top support (400) is T-shaped, and the side of the top support (400) used to support the roadway is curved.

9. The bolt drilling rig for roadway support as described in claim 1, characterized in that, The first support arm (100) is telescopic and includes a first telescopic section (101), a second telescopic section (102) and a rotating section (103), which are sequentially connected. The telescopic rod of the first telescopic cylinder (301) is rotatably connected to the rotating section (103), and the mounting part (300) is mounted on the first telescopic section (101).

10. The bolt drilling rig for roadway support as described in claim 1, characterized in that, The second support arm (200) is telescopic and includes an adjusting section (202) and a connecting section (201). The connecting section (201) is rotatably connected to the telescopic rod of the second telescopic cylinder (302). The adjusting section (202) is slidably installed on the connecting section (201), and the engagement depth of the adjusting section (202) and the connecting section (201) is adjustable.

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