Drill boom with buffer mechanism

Abstract

The utility model relates to a drill arm with a buffer mechanism in the technical field of drilling machines, which comprises a drill arm body, a power machine head slidably connected to the front side of the drill arm body along the length direction and a driving device used for driving the power machine head to move. The front side face of the tail end or the rear side face of the head end of the drill boom body is provided with a buffering mechanism correspondingly connected with the driving device. The buffer mechanism comprises two fixed seats which are arranged at intervals in the length direction of the drill arm body, a movable seat capable of moving in the length direction of the drill arm body is arranged between the two fixed seats, and elastic pieces are arranged between the movable seat and the fixed seats; when the power machine head works and the drill rod is in contact with an object with higher hardness and cannot drill through, the movement amount caused by the output of the hydraulic driving device can be counteracted through the deformation of the elastic piece, so that the situation that a drill hole is broken or the front end is seriously abraded can be effectively prevented, and the safety is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling machines, in particular to a drilling arm with a buffer mechanism. 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] However, when the drill rig is in use, when the drill rod contacts a hard rock or other object, the driving device of the drill rig that drives the drill rod to move cannot be stopped in time or continues to work. At this time, the driving device and the drill rod are subjected to a large force, which may cause damage. For example, the drill rod breaks or the front end is severely worn, or when the driving device is a hydraulic device, the oil circuit is broken.

[0004] For this purpose, we designed a drill arm with a buffer mechanism. Utility Model Content

[0005] In order to overcome the deficiencies in the background technology, the utility model discloses a drill arm with a buffer mechanism.

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

[0007] A drill arm with a buffer mechanism, comprising a drill arm body, a power head slidably connected to the front side of the drill arm body along the length direction, and a driving device for driving the power head to move, a drill rod is installed at the output end of the power head, and a buffer mechanism correspondingly connected to the driving device is provided on the front side of the rear end of the drill arm body or the rear side of the head end;

[0008] The buffer mechanism includes two fixed seats spaced apart along the length direction of the drill arm body, a movable seat capable of moving along the length direction of the drill arm body is provided between the two fixed seats, and an elastic member is provided between the movable seat and the fixed seat; the fixed end of the driving device is correspondingly connected to the movable seat, and the output end is correspondingly connected to the power machine head.

[0009] Preferably, sprockets are provided at both ends of the drill arm body, and the two sprockets are connected with a chain, and the power head is correspondingly connected to the nearest chain position.

[0010] Preferably, the driving device comprises a hydraulic cylinder, a fixed end of the hydraulic cylinder is correspondingly hinged to the movable seat, and a telescopic end of the hydraulic cylinder is correspondingly hinged to the nearest chain position.

[0011] Preferably, a trigger switch is provided on the inner side surface of the fixed seat located on the side of the movable seat facing away from the driving device.

[0012] Preferably, it further comprises a connecting seat, the connecting seat is provided with a hydraulic rotating device, and the rotating part of the hydraulic rotating device is correspondingly connected to the middle part of the rear side surface of the drill arm body.

[0013] Preferably, the connecting seat 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 can be adjusted by the hydraulic cylinder.

[0014] 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.

[0015] Due to the adoption of the above-mentioned technical solution, the utility model has the following beneficial effects:

[0016] 1. When the drill rod contacts an object with high hardness and cannot be drilled through during the operation of the power head, the deformation of the elastic part can offset the movement caused by the output of the hydraulic drive device, thereby effectively preventing the occurrence of drill hole breakage or severe wear of the front end, thereby improving safety;

[0017] 2. The arrangement of the sprocket and chain, when the elastic member is compressed to the limit position and the hydraulic drive device continues to operate, the safety of the drill rod and the hydraulic drive device can be exchanged by breaking the sprocket, which not only facilitates maintenance but also reduces maintenance costs;

[0018] 3. The setting of the elastic member. When the elastic member is compressed to the limit position, the movable seat can trigger the trigger switch, and the trigger switch sends a signal to the control system that controls the operation of the drive device. The control system controls the drive device to stop running, thereby preventing the drilling rig from being damaged. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a schematic diagram of another structure of the utility model;

[0021] Figure 3 for Figure 2 A local enlarged view of I in FIG.

[0022] Figure 4 It is a cross-sectional view of the utility model.

[0023] In the figure: 1. drill arm body; 11. sprocket; 12. chain; 2. power head; 3. driving device; 31. hydraulic cylinder; 4. drill rod; 5. buffer mechanism; 51. fixed seat; 52. movable seat; 53. elastic member; 54. trigger switch; 6. connecting seat; 61. first connecting rod; 62. second connecting rod; 7. hydraulic rotary device. DETAILED DESCRIPTION

[0024] 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.

[0025] Embodiment 1, in combination with the attached Figure 1-3 A drill arm with a buffer mechanism comprises a drill arm body 1, a power head 2 slidably connected to the front side of the drill arm body 1 along the length direction, and a driving device 3 for driving the power head 2 to move, a drill rod 4 is installed at the output end of the power head 2, and a buffer mechanism 5 correspondingly connected to the driving device 3 is provided on the front side of the tail end or the rear side of the head end of the drill arm body 1;

[0026] The buffer mechanism 5 includes two fixed seats 51 spaced apart along the length direction of the drill arm body 1, a movable seat 52 movable along the length direction of the drill arm body 1 is provided between the two fixed seats 51, and an elastic member 53 is provided between the movable seat 52 and the fixed seat 51; the fixed end of the drive device 3 is correspondingly connected to the movable seat 52, and the output end is correspondingly connected to the power head 2; that is, when the power head 2 is operating, when the drill rod 4 contacts an object with greater hardness and cannot be drilled through, the deformation of the elastic member 53 can offset the movement caused by the output of the hydraulic drive device 3, thereby effectively preventing the occurrence of drill hole breakage or severe wear of the front end, thereby improving safety.

[0027] As required, the elastic member 53 is a spring.

[0028] As required, the movable seat 52 has a sliding portion, and is slidably connected to the drill arm body 1 via the sliding portion.

[0029] Embodiment 2, combined with the attached Figure 4A drill arm with a buffer mechanism, based on the first embodiment, a sprocket 11 is provided at both ends of the drill arm body 1, and the two sprockets 11 are connected with a chain 12, and the power head 2 is correspondingly connected to the nearest chain 12 position; that is, when the elastic member 53 is compressed to the limit position and the hydraulic drive device 3 continues to operate, the safety of the drill rod 4 and the hydraulic drive device 3 can be exchanged by breaking the sprocket 11, which not only facilitates maintenance but also reduces maintenance costs.

[0030] In this embodiment, the driving device 3 includes a hydraulic cylinder 31 , a fixed end of the hydraulic cylinder 31 is correspondingly hinged to the movable seat 52 , and a telescopic end of the hydraulic cylinder 31 is correspondingly hinged to the nearest position of the chain 12 .

[0031] Embodiment 3, in combination with the attached Figure 3 A drill arm with a buffer mechanism, based on the first or second embodiment, a trigger switch 54 is provided on the inner side of the fixed seat 51 located on the side of the movable seat 52 away from the driving device 3; that is, when the elastic member 53 is compressed to the limit position, the movable seat 52 can trigger the trigger switch 54.

[0032] As needed, the trigger switch 54 signal is connected to the control system that controls the operation of the drive device 3; that is, when the switch 54 is triggered, the trigger switch 54 sends a signal to the control system, and the control system controls the drive device 3 to stop running, thereby preventing the drilling rig from being damaged.

[0033] Embodiment 4, in combination with the attached Figure 1-2 And 4, a drill arm with a buffer mechanism, based on any one of embodiments one to three, further includes a connecting seat 6, the connecting seat 6 is provided with a hydraulic rotating device 7, and the rotating part of the hydraulic rotating device 7 is correspondingly connected to the middle part of the rear side surface of the drill arm body 1.

[0034] As required, the connecting seat 6 can be installed on the forearm of an excavator in existing equipment, and the drilling rig angle can be controlled by the excavator; preferably, the hydraulic slewing device 7 is connected to the hydraulic system of the excavator.

[0035] Furthermore, the driving device 3 is also connected to the hydraulic system of the excavator.

[0036] During installation, it is only necessary to remove the bucket on the front arm of the excavator, and then install the connecting seat 6 on the front arm of the excavator.

[0037] The connection seat 6 is designed according to two common installation forms of the excavator bucket; one is: the connection seat 6 is correspondingly hinged to the outer end of the excavator forearm and the hydraulic cylinder of the excavator forearm, so as to adjust the angle of the connection seat 6 through the hydraulic cylinder; that is, both ends of the connection seat 6 have pin holes, and the two pin holes are respectively hinged to the outer end of the excavator forearm and the hydraulic cylinder of the excavator forearm through the pin shaft. The other is: one end of the connection seat 6 is hinged to the outer end of the excavator forearm, and the other end is hinged with a first connecting rod 61, and the end of the first connecting rod 61 away from the connection seat 6 is correspondingly hinged with the second connecting rod 62 and the hydraulic cylinder of the excavator forearm, and the end of the second connecting rod 62 away from the first connecting rod 61 is correspondingly hinged with the excavator forearm.

[0038] 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 drill arm with a buffer mechanism, comprising a drill arm body (1), a power head (2) slidably connected to the front side of the drill arm body (1) along the length direction, and a driving device (3) for driving the power head (2) to move, wherein a drill rod (4) is installed at the output end of the power head (2), characterized in that: A buffer mechanism (5) correspondingly connected to the driving device (3) is provided on the front side surface of the rear end or the rear side surface of the head end of the drill arm body (1); The buffer mechanism (5) comprises two fixed seats (51) arranged at intervals along the length direction of the drill arm body (1); a movable seat (52) capable of moving along the length direction of the drill arm body (1) is provided between the two fixed seats (51); and an elastic member (53) is provided between the movable seat (52) and the fixed seat (51); the fixed end of the drive device (3) is correspondingly connected to the movable seat (52), and the output end is correspondingly connected to the power machine head (2).

2. A drill arm with a buffer mechanism according to claim 1, characterized in that: Both ends of the drill arm body (1) are provided with sprockets (11), and the two sprockets (11) are connected to a chain (12), and the power machine head (2) is connected to the nearest chain (12) at a corresponding position.

3. A drill arm with a buffer mechanism according to claim 2, characterized in that: The driving device (3) comprises a hydraulic cylinder (31), wherein a fixed end of the hydraulic cylinder (31) is correspondingly hinged to a movable seat (52), and a telescopic end is correspondingly hinged to a nearby chain (12) position.

4. The drill arm with a buffer mechanism according to claim 1, characterized in that: A trigger switch (54) is provided on the inner side of the fixed seat (51) located on the side of the movable seat (52) facing away from the driving device (3).

5. The drill arm with a buffer mechanism according to claim 1, characterized in that: It also comprises a connecting seat (6), the connecting seat (6) being provided with a hydraulic rotating device (7), the rotating part of the hydraulic rotating device (7) being correspondingly connected to the middle part of the rear side surface of the drill arm body (1).

6. A drill arm with a buffer mechanism according to claim 5, characterized in that: The connecting seat (6) 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 (6) can be adjusted by the hydraulic cylinder.

7. A drill arm with a buffer mechanism according to claim 6, characterized in that: One end of the connecting seat (6) is hinged to the outer end of the excavator forearm, and the other end is hinged to a first connecting rod (61); one end of the first connecting rod (61) away from the connecting seat (6) is correspondingly hinged to a second connecting rod (62) and a hydraulic cylinder of the excavator forearm; and one end of the second connecting rod (62) away from the first connecting rod (61) is correspondingly hinged to the excavator forearm.

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