Drilling guide device for tunnel smooth blasting drilling sample frame trolley

Abstract

The utility model relates to the technical field of tunnel blasting construction, in particular to a drilling guide device for a tunnel smooth blasting drilling sample frame trolley, which comprises a front support and a rear support. And a guide pipe is erected between the front bracket and the rear bracket. According to the drilling guide device for the tunnel smooth blasting drilling sample frame trolley, when the direction of the guide pipe is adjusted, the servo motor is started to drive the threaded rod to rotate, the two threaded connecting plates drive the rear support on the rear portion to ascend or descend, the pipe section, erected on the rear support rod, of the guide pipe slides forwards or backwards along the U-shaped frame, and the guide pipe is driven by the servo motor to rotate. And after the orientation of the guide pipe is adjusted, the tail of the guide pipe can be positioned by screwing the fastening screw, so that the guide pipe is fixed for subsequent drilling, and the hidden danger that deviation occurs during blasting due to the fact that the angle of the guide pipe cannot be adjusted and the hole depth and hole inclination of some smooth blasting holes are difficult to guarantee is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel blasting construction, in particular to a drilling guide device for a tunnel smooth surface blasting drilling sample frame trolley. Background Art

[0002] In the construction of water conservancy tunnels, smooth blasting technology is usually used to ensure the quality of tunnel excavation and reduce over-excavation and under-excavation of caverns.

[0003] At present, the water supply systems of most pumped-storage power stations are underground cavern projects, and the excavation of underground cavern projects basically uses the method of smooth blasting. At present, smooth blasting holes (peripheral holes) are mainly drilled directly using handheld rock drills. The drilling accuracy depends to a large extent on the technical level of the driller himself, and it is easy to cause the drilling deviation and large hole inclination, resulting in unsatisfactory smooth blasting effects and uneven cavern contours. The drilling sample frame in the existing technology can effectively control the drilling accuracy, but the drilling sample frame set up for each cycle of footage takes up too much effective construction time, seriously affecting the progress on site; and the movable drilling sample frame cannot be close to the rock surface of the cavern contour due to the uneven cavern contour, and is not suitable for use in the cave. For this purpose, the patent document with announcement number CN117231235A adopts a trolley in combination with a drilling sample frame to provide some mobile wall-mounted drilling equipment. However, in the specific construction process, due to the large differences in the number, position and angle of the holes to be drilled, and the drilling sample frame on the trolley cannot fine-tune the angle of the guide tube, it is difficult to ensure the hole depth and hole inclination of some light blasting holes, which will lead to deviations during blasting. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a drilling guide device for a tunnel smooth surface blasting drilling sample frame trolley.

[0005] The utility model provides a drilling guide device for a tunnel smooth blasting drilling sample frame trolley, comprising:

[0006] A front bracket, and a rear bracket installed at the rear side of the front bracket, wherein the front bracket includes two front side connecting plates, and each of the front side connecting plates is provided with a rotatably connected threaded rod, and each of the threaded rods is sleeved with a threaded connecting plate that is threadedly connected;

[0007] The rear bracket includes two rear side connecting plates, and the two rear side connecting plates are respectively fixedly connected to the connecting ends of the two threaded connecting plates;

[0008] The front bracket is provided with a driving assembly for driving the threaded rod to rotate;

[0009] A plurality of guide tubes for guiding drill rods are arranged between the front support and the rear support.

[0010] Preferably, the driving assembly includes gears, two of which are provided and fixedly mounted on the bottoms of the two threaded rods respectively, and a meshing chain is installed between the two gears, and a servo motor for driving the threaded rod to rotate is fixedly installed on any one of the front side connecting plates.

[0011] Preferably, a plurality of front frame rods disposed horizontally up and down are fixedly installed between the two front side connecting plates in the front bracket, and a plurality of rear frame rods disposed horizontally up and down are fixedly installed between the two rear side connecting plates in the rear bracket.

[0012] Preferably, the guide tube is mounted between the corresponding front frame rod and rear frame rod.

[0013] Preferably, a sleeve ear piece is fixedly mounted on the guide tube, and the sleeve ear piece is sleeved on a rotating bracket fixedly mounted on the front frame rod and is rotatably connected to a rotating shaft in the rotating bracket.

[0014] Preferably, the rear side pipe of the guide tube is inserted into a U-shaped frame fixedly installed on the rear frame rod, and a threaded fastening screw is inserted into the U-shaped frame.

[0015] Preferably, a plurality of push connection seats for connecting the connection ends of the hydraulic cylinders are installed on the front side connecting plate.

[0016] Compared with the related art, the drilling guide device for the tunnel smooth blasting drilling sample frame trolley provided by the utility model has the following beneficial effects:

[0017] When the utility model adjusts the orientation of the guide tube, the servo motor is turned on to drive the threaded rod to rotate. Since the two threaded rods are connected by gears and chain transmission, the two threaded rods rotate synchronously, so that the two threaded connecting plates drive the rear bracket to rise or fall. At this time, the guide tube rotates on the rotating bracket along with the sleeve ear piece, and the pipe section of the guide tube mounted on the rear bracket rod slides forward or backward along the U-shaped frame until the orientation of the guide tube is adjusted. Then, the fastening screw can be tightened to position the tail of the guide tube, so that the guide tube is fixed for subsequent drilling. Therefore, the problem that the angle of the guide tube cannot be adjusted, it is difficult to ensure the hole depth and hole inclination of some light blasting holes, and then there is a hidden danger of deviation during blasting. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A structural schematic diagram of a preferred embodiment of a drilling guide device for a tunnel smooth blasting drilling sample frame trolley provided by the utility model;

[0019] Figure 2 for Figure 1 Schematic diagram of the structure of the guide tube shown. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0021] The specific implementation of the present utility model is described in detail below in conjunction with specific embodiments.

[0022] See also Figure 1 to Figure 2 The utility model embodiment provides a drilling guide device for a tunnel smooth surface blasting drilling sample frame trolley, and the drilling guide device for the tunnel smooth surface blasting drilling sample frame trolley comprises: a front bracket 1 and a rear bracket 2. Since the drilling sample frame formed by the front bracket 1 and the rear bracket 2 replaces the drilling sample frames on both sides of the patent number CN117231235A, the output end of the third hydraulic cylinder in the patent number CN117231235A is fixedly connected to the push connecting seat 9, and the installation of the drilling sample frame on the trolley body in the patent number CN117231235A can be completed.

[0023] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The rear side of the front bracket 1 is equipped with a rear bracket 2, and the front bracket 1 includes two front side connecting plates 11, and a plurality of front bracket rods 12 arranged horizontally up and down are fixedly installed between the two front side connecting plates 11 in the front bracket 1, and a threaded rod 3 connected in rotation is installed in each of the front side connecting plates 11, and a threaded connecting plate 4 connected in threaded connection is sleeved on each of the threaded rods 3, and a plurality of push connecting seats 9 for connecting the connecting ends of the hydraulic cylinders are installed on the front side connecting plates 11, and the rear bracket 2 includes two rear side connecting plates 21, and the two in the rear bracket 2 A plurality of rear frame rods 22 arranged horizontally up and down are fixedly installed between the rear side connecting plates 21, and the two rear side connecting plates 21 are respectively fixedly connected to the connecting ends of the two threaded connecting plates 4, and a driving assembly 5 for driving the threaded rod 3 to rotate is installed on the front bracket 1, and the driving assembly 5 includes a gear 51, and the gear 51 is provided with two and is respectively fixedly sleeved on the bottom of the two threaded rods 3, and a chain 52 is installed between the two gears 51 in meshing connection, and a servo motor for driving the threaded rod 3 to rotate is fixedly installed on any one of the front side connecting plates 11;

[0024] A plurality of guide tubes 6 for guiding drill rods are arranged between the front bracket 1 and the rear bracket 2, and the guide tubes 6 are arranged between the corresponding front frame rods 12 and rear frame rods 22. A sleeve ear piece 61 is fixedly installed on the guide tube 6, and the sleeve ear piece 61 is sleeved on a rotating bracket 7 fixedly installed on the front frame rod 12 and is rotatably connected to a rotating shaft in the rotating bracket 7. The rear side pipeline of the guide tube 6 is inserted into a U-shaped frame 8 fixedly installed on the rear frame rod 22, and a threaded fastening screw 81 is inserted on the U-shaped frame 8.

[0025] It should be noted that when adjusting the orientation of the guide tube 6, the servo motor is turned on to drive the threaded rod 3 to rotate. Since the two threaded rods 3 are connected by a transmission connection through a gear 51 and a chain 52, the two threaded rods 3 rotate synchronously, so that the two threaded connecting plates 4 drive the rear bracket 2 to rise or fall. At this time, the guide tube 6 rotates on the rotating bracket 7 along with the sleeve ear piece 61, and the pipe section of the guide tube 6 mounted on the rear frame rod 22 slides forward or backward along the U-shaped frame 8 until the orientation of the guide tube 6 is adjusted. Then, the fastening screw 81 can be tightened to position the tail of the guide tube 6, so that the guide tube 6 is fixed for subsequent drilling. Therefore, the problem that the angle of the guide tube in patent No. CN117231235A cannot be adjusted, and it is difficult to ensure the hole depth and hole inclination of some light blasting holes, which leads to deviations during blasting is solved.

[0026] The circuits and controls involved in the present invention are all prior art and will not be described in detail here.

[0027] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A drilling guide device for a tunnel smooth blasting drilling trolley, characterized in that: include: A front bracket (1), and a rear bracket (2) mounted on the rear side of the front bracket (1), wherein the front bracket (1) comprises two front side connecting plates (11), and each of the front side connecting plates (11) is provided with a rotatably connected threaded rod (3), and each of the threaded rods (3) is sleeved with a threaded connecting plate (4) that is threadedly connected; The rear bracket (2) comprises two rear side connecting plates (21), and the two rear side connecting plates (21) are respectively fixedly connected to the connecting ends of the two threaded connecting plates (4); The front bracket (1) is provided with a driving assembly (5) for driving the threaded rod (3) to rotate; A plurality of guide tubes (6) for guiding drill rods are arranged between the front support (1) and the rear support (2).

2. The drilling guide device for a tunnel smooth blasting drilling sample carriage according to claim 1 is characterized in that: The driving assembly (5) comprises a gear (51), wherein two gears (51) are provided and are respectively fixedly sleeved on the bottoms of the two threaded rods (3), and a chain (52) is installed between the two gears (51) for meshing connection, and a servo motor for driving the threaded rod (3) to rotate is fixedly installed on any one of the front side link plates (11).

3. The drilling guide device for a tunnel smooth blasting drilling trolley according to claim 1, characterized in that: A plurality of front frame rods (12) arranged horizontally up and down are fixedly mounted between the two front side connecting plates (11) in the front frame (1), and a plurality of rear frame rods (22) arranged horizontally up and down are fixedly mounted between the two rear side connecting plates (21) in the rear frame (2).

4. The drilling guide device for a tunnel smooth blasting drilling sample carriage according to claim 3 is characterized in that: The guide tube (6) is mounted between the corresponding front frame rod (12) and rear frame rod (22).

5. The drilling guide device for a tunnel smooth blasting drilling trolley according to claim 4, characterized in that: A sleeve ear piece (61) is fixedly mounted on the guide tube (6), and the sleeve ear piece (61) is sleeved on a rotating bracket (7) fixedly mounted on the front frame rod (12) and is rotatably connected to a rotating shaft in the rotating bracket (7).

6. The drilling guide device for a tunnel smooth blasting drilling trolley according to claim 5, characterized in that: The rear side pipe of the guide pipe (6) is inserted into a U-shaped frame (8) fixedly mounted on the rear frame rod (22), and a threaded fastening screw (81) is inserted into the U-shaped frame (8).

7. The drilling guide device for a tunnel smooth blasting drilling trolley according to claim 1, characterized in that: A plurality of push connection seats (9) for connecting to the connection ends of hydraulic cylinders are mounted on the front side connecting plate (11).

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