Back core drilling device and drilling machine

Abstract

The utility model belongs to the field of drilling construction, specifically discloses a kind of rear core drilling device and drilling machine, wherein, rear core drilling device, including drilling mechanism and guiding mechanism, drilling mechanism includes drill cylinder, and drill cylinder middle part is equipped with the core channel for supplying for the core outlet;Guiding mechanism includes the guide plate of setting in the tail of drill cylinder and the back baffle of setting on guide plate, and back baffle is used to stop the movement of core outlet along the axial direction of drill cylinder, and the inclined plane is equipped on the upper surface of guide plate, and guide plate is used to guide the core movement of core outlet to the both sides of drill cylinder or to one side of drill cylinder.Good practical applicability can be solved that drilling machine is more difficult to use with other equipment, and the tail of drilling machine needs to be avoided when assembling with other equipment.

Description

Technical Field

[0001] This utility model belongs to the field of drilling construction, specifically relating to a rear core drilling device and a drilling machine. Background Technology

[0002] Core drilling equipment is required for rock sampling and drilling. In existing technologies, the drilled core is typically retrieved from the drilling equipment after drilling is complete. To improve core extraction efficiency, patent CN116838276A discloses a pusher-free core drill rig. By using a hollow drill barrel, the core can be directly discharged from the tail end of the barrel, allowing for core removal without stopping the drilling process. However, during use, the drill rig inevitably needs to be used in conjunction with other equipment, such as mounting it on a construction vehicle for easy movement. Regardless of the equipment on which the drill rig is mounted, if any part of that equipment is located at the tail end of the drill barrel, the impact force of the large, high-speed core ejected will directly act on the equipment at the tail end of the drill rig. This makes it difficult to coordinate the drill rig with other equipment, and the tail end of the drill rig must be avoided during assembly with other equipment, limiting its practical applicability. Utility Model Content

[0003] In view of the shortcomings of the existing technology, this utility model provides a rear core drilling device and a drilling machine to solve the problem that the drilling machine is difficult to use with other equipment, and the tail of the drilling machine needs to be avoided when assembling with other equipment, resulting in low practical applicability.

[0004] According to embodiments of this utility model, the following technical solution is adopted: The rear core drilling device includes a drilling mechanism and a guiding mechanism. The drilling mechanism includes a drill barrel with a core discharge channel in the middle for core discharge. The guiding mechanism includes a guide plate at the tail of the drill barrel and a rear baffle on the guide plate. The rear baffle is used to block the movement of the core discharged from the core discharge channel along the axial direction of the drill barrel. The upper surface of the guide plate is provided with an inclined surface. The guide plate is used to guide the movement of the core discharged from the core discharge channel to both sides of the drill barrel or to one side of the drill barrel.

[0005] Compared with the prior art, the present invention has the following beneficial effects: In this design, the inclined surface on the guide plate guides the core sample discharged from the drill barrel to the side. By controlling the direction and size of the inclined surface, the core sample can be guided to an open area away from the mating equipment, regardless of whether the drilling rig is mounted at the front or side of the mating equipment, reducing the risk of collision damage to other equipment components. The rear baffle restricts the core sample from being discharged from the rear of the drill barrel, ensuring that it can only be discharged from the lower end of the inclined surface.

[0006] Furthermore, the upper surface of the guide plate is tapered, with a higher center and lower sides.

[0007] Furthermore, the tip of the guide plate in the middle has an arc-shaped transition.

[0008] Furthermore, a rubber plate is provided on the side of the rear baffle facing the drill barrel.

[0009] Furthermore, the drilling mechanism includes a support and a drill frame for mounting the support. The drill barrel is rotatably connected to the support, and a rotation drive for driving the drill barrel to rotate is mounted on the support. A feed drive for driving the support to feed along the axial direction of the drill barrel is mounted on the drill frame.

[0010] Furthermore, the guide plate is detachably connected to the bracket, and the rear baffle is detachably connected to the guide plate.

[0011] Furthermore, the core outlet channel includes a straight section and a variable diameter section. The inner wall of the variable diameter section is frustum-shaped, and the larger diameter end is the end closest to the rear baffle.

[0012] Furthermore, the outer wall of the drill barrel is provided with spiral patterns.

[0013] According to embodiments of this utility model, the following technical solutions are also adopted: A drilling machine, including a traveling device and a rear core drilling device, the traveling device including a construction vehicle, the construction vehicle being equipped with a mounting frame for mounting the drilling mechanism.

[0014] Furthermore, a mounting plate is slidably connected to the mounting bracket along the vertical direction, and a mounting shaft is rotatably connected to the mounting plate. The axis of the mounting shaft is vertical, and the drilling mechanism is detachably connected to the mounting shaft. Attached Figure Description

[0015] Figure 1 This is a front view of the overall structure of the drilling machine in this embodiment of the utility model.

[0016] Figure 2 This is a side view of the bracket and guide plate in an embodiment of this utility model.

[0017] Figure 3 This is a cross-sectional view of the drill barrel in an embodiment of this utility model.

[0018] In the diagram: 1. Drill frame; 2. Drill barrel; 3. Guide sleeve; 4. Rear baffle; 5. Mounting shaft; 6. Mounting plate; 7. Mounting frame; 8. Construction vehicle; 9. Support; 10. Guide plate; 11. Straight section; 12. Variable diameter section; 13. Core outlet channel. Detailed Implementation

[0019] The present invention will be further described in detail below with reference to the accompanying drawings, and specific embodiments will be given. like Figure 1 , Figure 3As shown, the rear core drilling device includes a drilling mechanism and a guiding mechanism. The drilling mechanism includes a drill barrel 2, a bracket 9 for mounting the drill barrel 2, and a drill frame 1 for mounting the bracket 9. The drill barrel 2 is provided with a core discharge channel 13 in the middle for discharging rock cores.

[0020] Specifically, the drill barrel 2 is rotatably connected to the bracket 9. The bracket 9 is equipped with a rotation drive component for driving the drill barrel 2 to rotate. Specifically, the rotation drive component includes a motor. In actual design, the motor's output shaft can drive the drum to rotate via gear transmission or belt transmission. Alternatively, a gearbox or other conventionally used driving devices can be added to the motor, as long as they can drive the drill barrel 2 to rotate. Figure 2 As shown, to facilitate the installation of transmission mechanisms such as gears or belts, the bracket 9 has mounting holes for the end of the drill barrel 2 to extend out. The side wall of the bracket 9 has mounting spaces communicating with these mounting holes. The transmission mechanisms, such as gears, are all housed within these mounting spaces and not exposed to the outside, to prevent sand and gravel from getting stuck. Figure 2 The diagram shows a gear transmission as an example, with the gear inside the bracket 9, hence shown as a dashed line.

[0021] The drill frame 1 is equipped with a feed drive for driving the support 9 to move axially along the drill barrel 2. Specifically, the feed drive includes a pneumatic or hydraulic cylinder fixed to the drill frame 1, with the output shaft of the pneumatic or hydraulic cylinder fixed to the support 9. Of course, in actual design, a conventional screw mechanism can also be used to drive the support 9 to slide, as long as it can achieve the goal of driving the support 9 to slide. To ensure the stability of the axial movement of the drill barrel 2, a guide sleeve 3 is also installed at the end of the drill frame 1, and the guide sleeve 3 has a through hole for the drill barrel 2 to pass through.

[0022] While the feed drive unit drives the support 9 to slide, the rotation drive unit drives the drill barrel 2 to rotate, thereby feeding the drill barrel 2 during rotation and drilling into the rock and soil. The drilled rock core is discharged through the core outlet channel 13. In actual design, in order to facilitate the discharge of the rock core from the core outlet channel 13, the drill barrel 2 can be set at an angle, so that the lower end of the drill barrel 2 is the tail end of the drill barrel 2. Of course, depending on the drilling requirements, the drill barrel 2 can also be set horizontally, in which case the drilled rock core can only be discharged by being pushed out sequentially after entering the core outlet channel 13.

[0023] The guiding mechanism includes a guide plate 10 located at the tail of the drill barrel 2 and a rear baffle 4 mounted on the guide plate 10. The rear baffle 4 is used to block the movement of the core discharged from the core outlet channel 13 along the axial direction of the drill barrel 2. In order to reduce the damage to the rear baffle 4 caused by the core moving and being mounted on it, a rubber plate is fixedly connected to the side of the rear baffle 4 facing the drill barrel 2. The rubber plate absorbs part of the kinetic energy of the core movement, thus playing a role in shock absorption and buffering.

[0024] The upper surface of the guide plate 10 is provided with an inclined surface. The guide plate 10 is used to guide the rock core discharged from the core outlet channel 13 to both sides of the drill barrel 2 or to one side of the drill barrel 2. When the guide plate 10 only guides the rock core to one side of the drill barrel 2, other equipment can be installed on the other side of the drill barrel 2 and behind the drill barrel 2. When the guide plate 10 guides the rock core to both sides of the drill barrel 2, other equipment can be installed behind the drill barrel 2. In addition, the length of the guide plate 10 can be designed to control the rock core to be guided to a designated place before falling to the ground.

[0025] In this embodiment, combined with Figure 2 As shown, the upper surface of the guide plate 10 is conical with a high center and low sides. That is, the rock core is guided to both sides of the drill barrel 2 through the guide plate 10. In order to avoid wear between the tip of the guide plate 10 and the rock core, which would cause it to be easily damaged, the tip of the guide plate 10 is arc-shaped.

[0026] In another embodiment of this utility model, the guide plate 10 is detachably connected to the bracket 9, and the rear baffle 4 is detachably connected to the guide plate 10. Both the guide plate 10 and the rear baffle 4 can move with the feed of the drill barrel 2, realizing real-time guidance of the core discharge, so that the core falls to both sides of the drill frame 1. In actual design, the guide plate 10 is bolted to the bracket 9, and the rear baffle 4 is bolted to the guide plate 10, which facilitates disassembly and replacement.

[0027] In another embodiment of this utility model, combined with Figure 3 As shown, in order to reduce core jamming in the core outlet channel 13, the core outlet channel 13 includes a straight cylindrical section 11 and a variable diameter section 12. The inner wall of the variable diameter section 12 is frustum-shaped and the large diameter end is the end near the rear baffle 4. The straight cylindrical section 11 is located at the head of the drill barrel 2 so that the drilled rock core maintains a regular columnar shape, while the design of the variable diameter section 12 makes it easier to discharge the drilled rock core when it moves in it.

[0028] In another embodiment of this utility model, the outer wall of the drill barrel 2 is provided with a spiral pattern. Through the design of the spiral pattern, the drill barrel 2 can be more easily drilled into the rock and soil during the rotation and feeding process.

[0029] In another embodiment of this utility model, a drilling machine is also disclosed.

[0030] The drilling machine includes a traveling device and a rear core drilling device as described in any of the above embodiments. The traveling device includes a construction vehicle 8, which is equipped with a mounting frame 7 for mounting the drilling mechanism. In this embodiment, the construction vehicle 8 is a tracked vehicle to facilitate travel in mountainous terrain. The construction vehicle 8 can move the drilling mechanism to a different position, thereby facilitating core drilling at the required location as needed.

[0031] A mounting plate 6 is vertically slidably connected to the mounting bracket 7. A pneumatic or hydraulic cylinder is mounted on the mounting bracket 7 to drive the mounting plate 6 to slide vertically. A mounting shaft 5 is rotatably connected to the mounting plate 6. The axis of the mounting shaft 5 is vertical. A motor is mounted on the mounting plate 6 to drive the mounting shaft 5 to rotate.

[0032] The drill frame 1 is detachably connected to the mounting shaft 5. Specifically, the drill frame 1 is bolted to the mounting shaft 5. The vertical movement of the mounting plate 6 adjusts the working height of the drill frame 1, and the rotation of the mounting shaft 5 adjusts the angle of the drill frame 1, thereby meeting different drilling and coring requirements. In this embodiment, an assembly example of a rear-core drilling device and a construction vehicle 8 is given. Through the design of the guide mechanism, the core discharge will not affect the structure of the components on the construction vehicle 8. In actual use, the rear-core drilling device can also be assembled and used on other equipment.

[0033] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A rear-core drilling device, characterized in that: The system includes a drilling mechanism and a guiding mechanism. The drilling mechanism includes a drill barrel with a core discharge channel in the middle for core discharge. The guiding mechanism includes a guide plate at the tail of the drill barrel and a rear baffle on the guide plate. The rear baffle is used to block the movement of the core discharged from the core discharge channel along the axial direction of the drill barrel. The upper surface of the guide plate is provided with an inclined surface. The guide plate is used to guide the movement of the core discharged from the core discharge channel to both sides of the drill barrel or to one side of the drill barrel.

2. The rear core drilling device according to claim 1, characterized in that: The upper surface of the guide plate is tapered, with a higher center and lower sides.

3. The rear core drilling device according to claim 2, characterized in that: The tip of the guide plate in the middle has an arc-shaped transition.

4. The rear core drilling device according to claim 1, characterized in that: A rubber plate is provided on the side of the rear baffle facing the drill barrel.

5. The rear core drilling device according to claim 1, characterized in that: The drilling mechanism includes a support and a drill frame for mounting the support. The drill barrel is rotatably connected to the support. A rotation drive for driving the drill barrel to rotate is mounted on the support. A feed drive for driving the support to feed along the axial direction of the drill barrel is mounted on the drill frame.

6. The rear core drilling device according to claim 5, characterized in that: The guide plate is detachably connected to the bracket, and the rear baffle is detachably connected to the guide plate.

7. The post-core drilling device according to any one of claims 1-6, characterized in that: The core outlet channel includes a straight section and a variable diameter section. The inner wall of the variable diameter section is frustum-shaped, and the larger diameter end is the end closest to the rear baffle.

8. The post-core drilling device according to any one of claims 1-6, characterized in that: The outer wall of the drill barrel is provided with spiral patterns.

9. A drilling machine, characterized in that: The device includes a traveling device and a rear core drilling device as described in any one of claims 1-8. The traveling device includes a construction vehicle, which is equipped with a mounting frame for mounting the drilling mechanism.

10. The drilling machine according to claim 9, characterized in that: A mounting plate is slidably connected to the mounting bracket along the vertical direction, and a mounting shaft is rotatably connected to the mounting plate. The axis of the mounting shaft is vertical, and the drilling mechanism is detachably connected to the mounting shaft.

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