Pneumatic anchor rod drilling machine capable of preventing drill jamming

Abstract

The utility model relates to the field of drilling machines, and discloses an anti-jamming pneumatic anchor rod drilling machine which comprises a drilling machine body composed of a machine body frame, a control arm and a machine head, an anchor rod connector pipe and a sprayer pipe located outside the edge of the anchor rod connector pipe are arranged at the end of the machine head, and the anchor rod connector pipe protrudes to the outer side of the machine head; the annular head is movably arranged on the peripheral side of the anchor rod connector pipe in a sleeving mode, and a plurality of thin holes distributed around the anchor rod connector pipe in an annular array mode are formed in the front face of the annular head in a penetrating mode; meanwhile, a connecting mechanism is arranged between the nozzle and the nozzle pipe. In the utility model, the hollow annular head is not only communicated with the spray head, but also fixed at the position sleeved on the peripheral side of the anchor rod interface pipe under the action of the connecting mechanism, and the annular thin hole formed on the hollow annular head around the anchor rod interface pipe is changed into the water outlet of the spray head pipe, so that the sprayed water flow has a circle of uniform spraying force on the punching position and acts on the hole periphery averagely; therefore, broken stones around the hole can be effectively washed away, and the possibility that the anchor rod is clamped is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the field of drilling machines, in particular to an anti-drilling-stuck pneumatic anchor drilling machine. Background Art

[0002] Pneumatic anchor drill is a kind of mining machinery that mainly uses compressed air as a power source to drive the drill. During the drilling process, in order to cool the drill bit and remove the debris generated by cutting, there is usually a flushing system. The system uses compressed air to spray water or other coolants to the drill bit, achieving the functions of cooling and slag removal at the same time.

[0003] In addition to cooling and slag removal, the sprayed water or coolant also has a certain lubrication effect, reducing the friction between the drill bit and the rock and reducing the possibility of the anchor bolt getting stuck. Figure 5 As shown in the figure, since the center of the machine head is connected to the anchor rod, the nozzle can only be set at the edge of the center, which results in the water flow impact force on the drilling position is not in the center, and the impact caused by this is that the debris in the hole is not washed away evenly, and some of the debris in the weaker force area around the hole will remain and cannot be washed away. This will in turn act on the anchor rod, making the friction force between the anchor rod and the hole uneven, which will cause the anchor rod to get stuck. Utility Model Content

[0004] Technical problem to be solved: How to reduce the possibility of anchor bolt getting stuck.

[0005] Technical solution: The utility model provides a pneumatic anchor drilling rig with anti-drilling sticking function, including drilling rig components and water modification components: the drilling rig components include a drilling rig body composed of a body frame, a control arm and a machine head, an anchor interface pipe and a nozzle pipe located outside the edge of the anchor interface pipe are arranged at the end of the machine head, and the anchor interface pipe protrudes to the outside of the machine head; the water modification component includes an internal hollow annular head movably sleeved on the outer peripheral side of the anchor interface pipe, and a plurality of fine holes distributed in a ring array around the anchor interface pipe are penetrated on the front side of the annular head; at the same time, a connecting mechanism is arranged between it and the nozzle pipe for fixing and connecting the two.

[0006] Furthermore, the connecting mechanism includes a hard curved pipe connected at the bottom end of the annular head, the transverse pipe on the curved pipe is in the same horizontal direction as the nozzle pipe, and flanges are installed at the ends of the transverse pipe and the nozzle pipe, and a combination bolt is connected between the two flanges.

[0007] Furthermore, the port of the transverse tube may be connected to a rubber tube, the outer diameter of which is slightly larger than the inner diameter of the nozzle tube, so that the rubber tube can be elastically snapped into the nozzle tube.

[0008] Furthermore, a water-stopping rubber sleeve is elastically sleeved on the outer circumference of the two flanges, and a limiting mechanism for limiting the displacement of the water-stopping rubber sleeve is provided on the outer circumference of the water-stopping rubber sleeve.

[0009] Furthermore, the limiting mechanism includes two semicircular frames, which cooperate to form a ring frame that is sleeved on the outer peripheral side of the water-stop rubber sleeve, and both ends of the semicircular frames are constructed with ear blocks, and each group of ear blocks corresponding to the upper and lower parts are cooperated and connected with two combination bolts.

[0010] Furthermore, the inner diameter of the ring frame is slightly smaller than the outer diameter of the waterproof rubber sleeve, so that the ring frame can apply a compression force of one circle to the waterproof rubber sleeve.

[0011] Technical effect: In the utility model, the hollow annular head is connected to the nozzle through the connection mechanism, and is fixed in a position sleeved on the outer peripheral side of the anchor rod interface tube. The annular fine holes formed around the anchor rod interface tube become the water outlet of the nozzle tube. In this way, the sprayed water flow has a uniform jet force around the drilling position, which acts evenly around the hole, which can effectively wash away the gravel around the hole and greatly reduce the possibility of the anchor rod getting stuck. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 This is a schematic diagram of the ring tube structure of the utility model;

[0015] Figure 3 It is an enlarged schematic diagram of the structure at A of the utility model;

[0016] Figure 4 This is a schematic diagram of the structure of the limiting mechanism of the utility model;

[0017] Figure 5 This is a schematic diagram of the nozzle position structure of the pneumatic anchor drilling rig;

[0018] In the figure: 1. body frame; 2. control arm; 3. machine head; 4. anchor rod interface pipe; 5. nozzle pipe; 6. ring head; 7. fine hole; 8. connecting mechanism; 801. elbow; 802. flange; 803. combination bolt one; 9. water-stop rubber sleeve; 10. limiting mechanism; 1001. semicircular frame; 1002. ear block; 1003. combination bolt two. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application; obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0020] The pneumatic anchor drill rig with anti-drilling provided in this specific embodiment is as follows: Figure 1 and Figure 2 As shown, it includes drilling machine components and water reforming components, wherein:

[0021] The drilling rig components include a drilling rig body mainly composed of a body frame 1, a control arm 2 and a head 3. For the head 3 of the drilling rig body, an anchor rod interface pipe 4 and a nozzle pipe 5 located outside the edge of the anchor rod interface pipe 4 are arranged at the end of the head 3. It should be noted that the anchor rod interface pipe 4 protrudes to the outside of the head 3, that is, the anchor rod interface pipe 4 has a certain length.

[0022] The water modification component includes an internal hollow annular head 6 movably mounted on the outer peripheral side of the anchor rod interface pipe 4, and a plurality of fine holes 7 distributed in an annular array around the anchor rod interface pipe 4 are formed through the front of the annular head 6; at the same time, a connecting mechanism 8 is provided between the annular head 6 and the nozzle pipe 5 for fixing and connecting the two. Figure 3 As shown, the connection mechanism 8 includes a hard elbow 801 connected at the bottom end of the annular head 6, the transverse pipe on the elbow 801 is in the same horizontal direction as the nozzle pipe 5, and flanges 802 are installed at the ends of the transverse pipe and the nozzle pipe 5, and a combination bolt 803 is connected between the two flanges 802. Since the elbow 801 is hard, when the flange 802 structure is used for connection, the annular head 6 is fixed, and the water flow in the nozzle pipe 5 will pass through the elbow 801 and then spray out from the fine hole 7 on the annular head 6. Since the fine hole 7 is annularly surrounding the anchor rod interface pipe 4, the water flow is relatively evenly sprayed around the hole.

[0023] In addition, to avoid water leakage, a rubber tube can be connected to the port of the horizontal pipe, and the outer diameter of the rubber tube is slightly larger than the inner diameter of the nozzle pipe 5, so that it can be elastically clamped into the nozzle pipe 5. In addition, a waterproof rubber sleeve 9 can be elastically sleeved on the outer circumference of the two flanges 802, and a limiting mechanism 10 for limiting its deviation is provided on the outer circumference of the waterproof rubber sleeve 9. Figure 4As shown, the limiting mechanism 10 includes two semicircular frames 1001, which cooperate to form a ring frame that is sleeved on the outer peripheral side of the waterproof rubber sleeve 9, and both ends of the semicircular frame 1001 are structured with ear blocks 1002, and each group of ear blocks 1002 corresponding to the upper and lower parts are matched and connected with a combination bolt 1003 for fixing. After the ring frame is fixed, the inner diameter of the ring frame is slightly smaller than the outer diameter of the waterproof rubber sleeve 9, so that the ring frame can apply a compression force to the waterproof rubber sleeve 9 for one week, so that the waterproof rubber sleeve 9 is tightly sleeved on the outer peripheral side of the two flanges 802. Further avoid the possibility of water leakage.

[0024] 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.

[0025] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A pneumatic anchor drill with an anti-drilling function, comprising a drilling machine component and a water-reforming component: The drilling machine component comprises a drilling machine body consisting of a machine frame (1), a control arm (2) and a machine head (3), an anchor rod interface pipe (4) and a nozzle pipe (5) located outside the edge of the anchor rod interface pipe (4) are arranged at the end of the machine head (3), and the characteristics are: The anchor rod interface tube (4) protrudes to the outside of the machine head (3); The water modification component comprises an internally hollow annular head (6) movably sleeved on the outer peripheral side of the anchor rod interface tube (4), and a plurality of fine holes (7) distributed in an annular array around the anchor rod interface tube (4) are penetrated through the front side of the annular head (6); at the same time, a connecting mechanism (8) is provided between the annular head (6) and the nozzle tube (5) for fixing and connecting the two.

2. The anti-drilling pneumatic anchor drill according to claim 1, characterized in that: The connection mechanism (8) comprises a hard curved pipe (801) connected to the bottom end of the annular head (6); the transverse pipe on the curved pipe (801) is in the same horizontal direction as the nozzle pipe (5); flanges (802) are installed at the ends of the transverse pipe and the nozzle pipe (5); and a combination bolt (803) is provided between the two flanges (802).

3. The anti-drilling pneumatic anchor drill according to claim 2, characterized in that: The port of the transverse tube can be connected to a rubber tube, the outer diameter of the rubber tube being slightly larger than the inner diameter of the nozzle tube (5) so that the rubber tube can be elastically snapped into the nozzle tube (5).

4. The anti-drilling pneumatic anchor drill according to claim 2, characterized in that: A water-stopping rubber sleeve (9) is elastically sleeved on the outer circumference of the two flanges (802), and a limiting mechanism (10) for limiting the displacement of the water-stopping rubber sleeve (9) is provided on the outer circumference of the water-stopping rubber sleeve (9).

5. The anti-drilling pneumatic anchor drill according to claim 4, characterized in that: The limiting mechanism (10) comprises two semicircular frames (1001), the two semicircular frames (1001) cooperate to form a ring frame sleeved on the outer peripheral side of the water-stop rubber sleeve (9), and both ends of the semicircular frames (1001) are structured to form ear blocks (1002), and each group of ear blocks (1002) corresponding to the upper and lower parts are cooperated and connected with two combination bolts (1003).

6. The anti-drilling pneumatic anchor drill according to claim 5, characterized in that: The inner diameter of the ring frame is slightly smaller than the outer diameter of the waterproof rubber sleeve (9), so that the ring frame can apply a compression force of one circle to the waterproof rubber sleeve (9).

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