Connecting structure of drill boom of drilling machine

Abstract

The utility model relates to a connecting structure of a drilling arm of a drilling machine in the technical field of drilling machine installation, which comprises a connecting seat correspondingly hinged to the outer end of a front arm of an excavator and a hydraulic cylinder of the front arm of the excavator so as to adjust the angle of the connecting seat through the hydraulic cylinder; a fixed part of the hydraulic rotating device is arranged in the middle of the connecting seat, and the hydraulic rotating device is connected to a hydraulic system of the excavator; the middle part of the rear side surface of the drilling arm is correspondingly connected to the rotating part of the hydraulic rotating device; the connecting seat is connected with the excavator forearm and the hydraulic cylinder of the excavator forearm, so that the height of the drilling machine can be controlled through the excavator, and the height stroke of the drilling machine is increased compared with a drill carriage for controlling the position of the drilling machine; the connecting base is connected with the excavator front arm and the hydraulic cylinder of the excavator front arm, and the drilling machine can be adjusted within the 360-degree angle by being matched with the hydraulic rotating device and the excavator mechanical arm.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling rig installation, in particular to a connection structure of a drilling rig drill arm. Background Art

[0002] The main function of the drilling rig is to drive the drill to break the rock at the bottom of the hole and lower or extract the drill in the hole. It can be used to drill rock cores, ore cores, rock cuttings, gas samples, liquid samples, etc. to explore underground geology and mineral resources. At present, it is widely used in mining, coal, building materials, hydropower construction, highway, railway engineering, etc.

[0003] The use of the drilling rig includes manual drilling or using a drilling vehicle that is compatible with the drilling rig for drilling operations. However, manual operations not only have low work efficiency, but also the drilling depth is very shallow, which is difficult to meet the use requirements. Using a drilling vehicle for drilling greatly increases the procurement cost, and the height of the drilling vehicle is relatively low, and the use effect is poor when operating in some special positions and angles.

[0004] To this end, we designed a connection structure for the drill arm of the drill rig that can be installed on the front arm of the excavator, so as to achieve the function of controlling the position of the drill rig through the excavator. It is used to solve the defect that the height of the drill rig controlled by the drilling vehicle is low, and the use effect is poor when operating in some special positions and angles. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a connection structure of a drill arm of a drilling rig.

[0006] In order to achieve the above-mentioned invention object, the utility model adopts the following technical solutions:

[0007] A connection structure of a drilling rig boom, comprising:

[0008] A connecting seat, corresponding to a hydraulic cylinder hinged to the outer end of the excavator forearm and the forearm of the excavator, so as to adjust the angle of the connecting seat through the hydraulic cylinder;

[0009] A hydraulic rotary device, the fixing portion of which is arranged in the middle of the connecting seat, and the hydraulic rotary device is connected to the hydraulic system of the excavator;

[0010] The drill arm, the middle part of the rear side surface of which is correspondingly connected to the rotary part of the hydraulic rotary device;

[0011] Among them, the hydraulic rotating device includes a fixed cylinder arranged in the middle of the front side surface of the connecting seat, the inner cavity of the fixed cylinder is provided with a rotating shaft extending from the front end, and the two ends of the fixed cylinder are sealed and rotated with the shaft body of the rotating shaft, and there are two chambers between the inner wall of the fixed cylinder and the shaft body of the rotating shaft, and the two chambers are connected to the excavator hydraulic system to facilitate the control of the rotation of the rotating shaft through the excavator hydraulic system; a drill arm is provided at the front end of the rotating shaft.

[0012] Preferably, the inner wall of the fixed cylinder is provided with a fixed partition, and the rotating shaft body is provided with a movable partition, so as to form two chambers between the inner wall of the fixed cylinder and the rotating shaft body.

[0013] Preferably, the front end of the fixed cylinder is sealingly connected to a front sealing cover which is sealingly rotatably connected to the rotating shaft body.

[0014] Preferably, a clearance hole is provided in the middle of the front side surface of the connecting seat.

[0015] Preferably, the rear end of the rotary shaft extends out of the fixed cylinder, a hydraulic brake device is provided on the rear end surface of the fixed cylinder, and the hydraulic brake device is correspondingly connected to the hydraulic system of the excavator.

[0016] Preferably, the hydraulic brake device includes an outer cylinder whose open end is correspondingly connected to the rear end surface of the fixed cylinder, and a partition plate is provided at a position near the open end of the inner cavity of the outer cylinder. The inner cavity of the outer cylinder is provided with elastic parts and a piston rod with a piston plate from the inside to the outside, and the end of the piston rod away from the elastic part is sealed and penetrates the partition plate and is provided with a brake disc. The side wall of the fixed cylinder is located between the piston plate and the partition plate in the piston rod and is correspondingly connected to the hydraulic system of the excavator.

[0017] Preferably, a cooling cavity is provided on the end surface of the piston rod corresponding to the brake disc, and an oil through hole is provided on the side wall of the cooling cavity corresponding to the position on the side of the partition plate away from the brake disc.

[0018] Preferably, one end of the connecting seat is hinged to the outer end of the excavator forearm, and the other end is hinged to a first connecting rod, the end of the first connecting rod away from the connecting seat is correspondingly hinged to a second connecting rod and a hydraulic cylinder of the excavator forearm, and the end of the second connecting rod away from the first connecting rod is correspondingly hinged to the excavator forearm.

[0019] Preferably, a hydraulic drive device is provided at one end of the drill arm, and a power head is correspondingly connected to the output end of the hydraulic drive device, and the power head is movably matched with the front side of the drill arm along the length direction.

[0020] Preferably, the drill arm is provided with two fixed seats at intervals along its length direction, the drill arm is provided with a movable seat that can move along its length direction at a position between the two fixed seats, a buffer is provided between the movable seat and the fixed seat, and the fixed part of the hydraulic drive device is correspondingly connected to the movable seat.

[0021] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0022] 1. The connecting seat is connected to the excavator forearm and the hydraulic cylinder of the excavator forearm, so that the height of the drill can be controlled by the excavator. Compared with the drilling rig position controlled by the drilling vehicle, the height travel of the drill is increased;

[0023] 2. The drilling rig can be adjusted within 360 degrees by connecting the connecting seat with the excavator forearm and the hydraulic cylinder of the excavator forearm, cooperating with the hydraulic slewing device, and cooperating with the excavator mechanical arm;

[0024] 3. The setting of the hydraulic rotary device integrates and optimizes the hydraulic motor and the rotary device driven by the hydraulic motor in the prior art, making the structure simpler and effectively controlling the cost;

[0025] 4. The setting of hydraulic brake device can brake the rotary shaft during operation of the drilling rig to ensure the stability of the drilling rig;

[0026] 5. The setting of the fixed seat, movable seat and buffer. When the drill rod contacts an object with high hardness and cannot drill a hole, the deformation of the buffer can offset the movement output by the hydraulic drive device, thereby effectively preventing the hole from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the structure of the utility model;

[0028] Figure 2 It is a schematic diagram of another structure of the utility model;

[0029] Figure 3 It is the front view of the utility model;

[0030] Figure 4 It is a cross-sectional view of the hydraulic rotary device of the utility model;

[0031] Figure 5 This is a cross-sectional view of the assembly of the fixed cylinder and the rotary shaft in the utility model;

[0032] Figure 6 It is a cross-sectional view of the hydraulic rotary device and the hydraulic brake device of the utility model.

[0033] In the figure: 1. connecting seat; 11. clearance hole; 12. first connecting rod; 13. second connecting rod; 2. hydraulic rotating device; 21. fixed cylinder; 211. fixed partition; 22. rotating shaft; 221. movable partition; 23. front cover; 3. drill arm; 4. hydraulic braking device; 41. outer cylinder; 42. partition plate; 43. elastic member; 44. piston rod; 441. cooling chamber; 442. oil hole; 45. brake disc; 5. hydraulic drive device; 6. power head; 7. fixed seat; 8. movable seat; 9. buffer member. DETAILED DESCRIPTION

[0034] The present invention can be explained in detail through the following embodiments. The purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention. In the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. to indicate directions or positional relationships, they only correspond to the drawings of the present application, in order to facilitate the description of the present invention; it should be understood that if there are terms such as "end", "side", "end part", "lateral", "lateral", "transverse", "longitudinal", etc. to indicate directions or positional relationships, they only correspond to the length and width of the corresponding parts, that is, "end part" indicates the head and tail areas in the length direction of the corresponding part, and "side part" indicates the head and tail areas in the width direction of the corresponding part; this is for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0035] Embodiment 1, in combination with the attached Figure 1-5 , a connection structure of a drilling rig drill arm, comprising:

[0036] The connecting seat 1 is correspondingly hinged to the outer end of the excavator forearm and the hydraulic cylinder of the excavator forearm, so that the angle of the connecting seat 1 can be adjusted by the hydraulic cylinder;

[0037] In one possible example, Figure 2 One end of the connecting seat 1 is hinged to the outer end of the excavator forearm, and the other end is hinged to the hydraulic cylinder of the excavator forearm.

[0038] In one possible example, Figure 1 and 3 One end of the connecting seat 1 is hinged to the outer end of the excavator forearm, and the other end is hinged with a first connecting rod 12. The end of the first connecting rod 12 away from the connecting seat 1 is correspondingly hinged with a second connecting rod 13 and a hydraulic cylinder of the excavator forearm, and the end of the second connecting rod 13 away from the first connecting rod 12 is correspondingly hinged with the excavator forearm.

[0039] During installation, you only need to remove the bucket of the excavator and install the connecting seat 1 according to the hole position of the bucket to complete the installation of the connecting seat 1. It should be noted that before installing the connecting structure, the oil circuit of the excavator needs to be slightly changed, and the oil circuit for controlling the hydraulic slewing device 2 and the oil circuit for the hydraulic drive device 5 are added. When there is a hydraulic brake device 4, the oil circuit for controlling the hydraulic brake device 4 should also be added. When the power machine head 6 is also a hydraulic device, it is also necessary to add an oil circuit to control the operation of the power machine head 6; the change of the excavator oil circuit is not part of the protection plan of the connecting structure, and will not be described in detail here.

[0040] It should be noted that: in order to ensure strength and stability, preferably, the above-mentioned hinge adopts a pin connection to achieve the hinge function.

[0041] A hydraulic rotary device 2, the fixing portion of which is arranged in the middle of the connecting seat 1, and the hydraulic rotary device 2 is connected to the hydraulic system of the excavator;

[0042] Combined with Figure 3 , the middle part of the rear side of the drill arm 3 is correspondingly connected to the rotary part of the hydraulic rotary device 2; specifically, a hydraulic drive device 5 is provided at one end of the drill arm 3, and a power head 6 is correspondingly connected to the output end of the hydraulic drive device 5, and the power head 6 is movably matched with the front side of the drill arm 3 along the length direction; that is, the power head 6 can be driven to move by the hydraulic drive device 5. It should be noted that: the hydraulic drive device 5 is correspondingly connected to the hydraulic system of the excavator, and the operation of the hydraulic drive device 5 is controlled by the hydraulic system of the excavator.

[0043] Among them, combined with Figure 4-5 The hydraulic rotary device 2 includes a fixed cylinder 21 arranged in the middle of the front side of the connecting seat 1, a rotary shaft 22 extending from the front end is arranged in the inner cavity of the fixed cylinder 21, and the two ends of the fixed cylinder 21 are sealed and rotated with the shaft body of the rotary shaft 22, and two chambers are provided between the inner wall of the fixed cylinder 21 and the shaft body of the rotary shaft 22, and the two chambers are connected to the hydraulic system of the excavator, so as to control the rotation of the rotary shaft 22 through the hydraulic system of the excavator; a drill arm 3 is arranged at the front end of the rotary shaft 22;

[0044] Furthermore, a fixed partition plate 211 is provided on the inner wall of the fixed cylinder 21 , and a movable partition plate 221 is provided on the shaft body of the rotating shaft 22 , so as to form two chambers between the inner wall of the fixed cylinder 21 and the shaft body of the rotating shaft 22 .

[0045] According to the needs, the fixed baffle 211 and the movable baffle 221 can be a flat plate or a spiral plate on the radial surface of the fixed cylinder 21. Preferably, the fixed baffle 211 and the movable baffle 221 are flat plates; that is, when the rotary shaft 22 needs to rotate, the hydraulic oil can be controlled to enter one of the chambers through the hydraulic system of the excavator. At this time, the oil pressure of the two chambers is different. Under the action of the oil pressure difference, the movable baffle 221 needs to move to the chamber with low oil pressure, thereby driving the rotary shaft 22 to rotate.

[0046] As required, a flange plate is provided at the front end of the rotary shaft 22 and is fixedly connected to the drill arm 3 via the flange plate.

[0047] Furthermore, the front end of the fixed cylinder 21 is sealedly connected to a front cover 23 that is sealed and rotatably connected to the shaft body of the rotating shaft 22; as required, a sealing ring can be provided between the front cover 23 and the shaft body of the rotating shaft 22 to enable the two to be sealed and rotatably matched. As required, a sealing gasket is provided between the front cover 23 and the front end surface of the fixed cylinder 21.

[0048] As needed, in order to increase the stability of the axial position of the rotating shaft 22, the front section of the rotating shaft 22 can be a stepped shaft, which contacts the inner end surface of the front cover 23 through the step surface to prevent the rotating shaft 22 from axial movement.

[0049] Embodiment 2, combined with the attached Figure 6 A connection structure of a drilling rig arm. On the basis of the first embodiment, the rear end of the rotary shaft 22 extends out of the fixed cylinder 21, and the rear end surface of the fixed cylinder 21 is provided with a hydraulic brake device 4, and the hydraulic brake device 4 is correspondingly connected to the hydraulic system of the excavator.

[0050] As required, a clearance hole 11 is provided in the middle of the front side surface of the connecting seat 1, so that the rear end surface of the fixing cylinder 21 can have space for installing the hydraulic brake device 4.

[0051] As needed, the hydraulic brake device 4 includes an outer cylinder 41 whose open end is connected to the rear end surface of the fixed cylinder 21, a partition plate 42 is provided at a position near the open end of the inner cavity of the outer cylinder 41, and an elastic member 43 and a piston rod 44 with a piston plate are provided in sequence from the inside to the outside of the inner cavity of the outer cylinder 41. The end of the piston rod 44 away from the elastic member 43 is sealed and passes through the partition plate 42, and is provided with a brake disc 45. The side wall of the fixed cylinder 21 is located between the piston plate and the partition plate 42 in the piston rod 44 and is connected to the hydraulic system of the excavator; that is, when the rotating shaft 22 needs to rotate, the hydraulic oil is controlled by the hydraulic system of the excavator to enter the inner cavity of the fixed cylinder 21 corresponding to the position between the piston plate and the partition plate 42. The piston plate moves under the action of oil pressure and squeezes the elastic member 43. When the elastic member 43 is compressed, the piston rod 44 drives the brake disc 45 away from the rotating shaft 22, so that the rotating shaft 22 is released from the brake. At this time, the rotation of the rotating shaft 22 can be controlled by the hydraulic system of the excavator.

[0052] As required, the elastic member 43 may be a leaf spring with small deformation and large elastic force.

[0053] As required, the rear section of the rotary shaft 22 is also a stepped shaft, and the small diameter section extends from the rear end of the outer cylinder 41. As required, the rear end of the inner cavity of the outer cylinder 41 is provided with a reduced diameter portion, which abuts against the stepped surface of the rear section of the rotary shaft 22 to prevent the rotary shaft 22 from moving backward.

[0054] Embodiment 3, in combination with the attached Figure 6 , a connection structure of a drill arm of a drilling rig, based on the second embodiment, a cooling chamber 441 is provided at the end face of a piston rod 44 corresponding to a brake disc 45, and an oil hole 442 is provided at a side wall of the cooling chamber 441 corresponding to a position on a side of a partition plate 42 away from the brake disc 45; that is, oil can enter the cooling chamber 441 through the oil hole 442, and release the disc surface of the brake disc 45 away from the working surface, thereby improving the cooling effect of the brake disc 45 and improving the service life of the brake disc 45.

[0055] Embodiment 4, in combination with the attached Figure 1-3A connection structure of a drill arm of a drilling rig, based on any one of embodiments 1 to 3, a drill arm 3 is provided with two fixed seats 7 at intervals along its length direction, a movable seat 8 that can move along its length direction is provided at a position between the two fixed seats 7 of the drill arm 3, a buffer 9 is provided at a position between the movable seat 8 and the fixed seat 7, and a fixed part of a hydraulic drive device 5 is correspondingly connected to the movable seat 8; that is, when the power head 6 is operating, when the drill rod contacts an object with a larger hardness and cannot drill a hole, the deformation of the buffer 9 can offset the movement output by the hydraulic drive device 5, thereby effectively preventing the occurrence of drill hole breakage.

[0056] As required, the buffer member 9 is a spring.

[0057] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and it is intended that all changes that fall within the meaning and scope of equivalent elements are included in the present invention.

Claims

1. A connection structure of a drilling rig arm, characterized in that: include: A connecting seat (1) is correspondingly hinged to the outer end of the excavator forearm and the hydraulic cylinder of the excavator forearm, so that the angle of the connecting seat (1) can be adjusted by the hydraulic cylinder; A hydraulic rotary device (2), the fixing portion of which is arranged in the middle of the connecting seat (1), and the hydraulic rotary device (2) is connected to the hydraulic system of the excavator; The drill arm (3) has a middle portion of a rear side surface thereof correspondingly connected to the rotary portion of the hydraulic rotary device (2); The hydraulic rotary device (2) comprises a fixed cylinder (21) arranged in the middle of the front side surface of the connecting seat (1); the inner cavity of the fixed cylinder (21) is provided with a rotary shaft (22) extending from the front end; and the two ends of the fixed cylinder (21) are sealed and rotatably matched with the shaft body of the rotary shaft (22); there are two chambers between the inner wall of the fixed cylinder (21) and the shaft body of the rotary shaft (22), and the two chambers are connected to the hydraulic system of the excavator so as to control the rotation of the rotary shaft (22) through the hydraulic system of the excavator; and a drill arm (3) is provided at the front end of the rotary shaft (22).

2. A connection structure of a drilling rig arm according to claim 1, characterized in that: The inner wall of the fixed cylinder (21) is provided with a fixed partition (211), and the shaft body of the rotating shaft (22) is provided with a movable partition (221), so as to form two chambers between the inner wall of the fixed cylinder (21) and the shaft body of the rotating shaft (22).

3. The connection structure of a drilling rig arm according to claim 1, characterized in that: The front end of the fixed cylinder (21) is sealingly connected to a front sealing cover (23) which is sealingly rotatably connected to the shaft body of the rotary shaft (22).

4. The connection structure of a drilling rig arm according to claim 1, characterized in that: A clearance hole (11) is provided in the middle of the front side surface of the connecting seat (1).

5. The connection structure of a drilling rig arm according to claim 4, characterized in that: The rear end of the rotary shaft (22) extends out of the fixed cylinder (21), and a hydraulic brake device (4) is provided on the rear end surface of the fixed cylinder (21), and the hydraulic brake device (4) is correspondingly connected to the hydraulic system of the excavator.

6. The connection structure of a drilling rig arm according to claim 5, characterized in that: The hydraulic brake device (4) comprises an outer cylinder (41) whose open end is correspondingly connected to the rear end surface of the fixed cylinder (21); a partition plate (42) is provided in the inner cavity of the outer cylinder (41) near the open end; an elastic member (43) and a piston rod (44) having a piston plate are provided in the inner cavity of the outer cylinder (41) from the inside to the outside; one end of the piston rod (44) away from the elastic member (43) is sealed and penetrates the partition plate (42) and is provided with a brake disc (45); and a side wall of the fixed cylinder (21) is located between the piston plate and the partition plate (42) in the piston rod (44) and is correspondingly connected to the hydraulic system of the excavator.

7. The connection structure of a drilling rig arm according to claim 6, characterized in that: The piston rod (44) is provided with a cooling cavity (441) on the end surface corresponding to the brake disc (45), and the side wall of the cooling cavity (441) is provided with an oil through hole (442) at a position on the side of the partition plate (42) away from the brake disc (45).

8. The connection structure of a drilling rig arm according to claim 1, characterized in that: One end of the connecting seat (1) is hinged to the outer end of the excavator forearm, and the other end is hinged to a first connecting rod (12); the end of the first connecting rod (12) away from the connecting seat (1) is correspondingly hinged to a second connecting rod (13) and a hydraulic cylinder of the excavator forearm; the end of the second connecting rod (13) away from the first connecting rod (12) is correspondingly hinged to the excavator forearm.

9. The connection structure of a drilling rig arm according to claim 1, characterized in that: A hydraulic drive device (5) is provided at one end of the drill arm (3); an output end of the hydraulic drive device (5) is correspondingly connected to a power head (6), and the power head (6) is movably matched with the front side of the drill arm (3) along the length direction.

10. The connection structure of a drilling rig arm according to claim 9, characterized in that: The drill arm (3) is provided with two fixed seats (7) at intervals along its length direction; the drill arm (3) is provided with a movable seat (8) movable along its length direction at a position corresponding to the position between the two fixed seats (7); a buffer member (9) is provided at a position between the movable seat (8) and the fixed seat (7); and the fixed portion of the hydraulic drive device (5) is correspondingly connected to the movable seat (8).

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