Reamer bit device for mining industry

Abstract

The utility model relates to the technical field of mining drill bits, and discloses a reaming drill bit device for mining, which comprises a drill bit body, a rotating sleeve is fixedly connected to one end of the drill bit body, a plurality of movable tool bits are hinged to the outer edge of the drill bit body, the movable tool bits are distributed around the drill bit body at equal angles, and a contraction component is arranged on the inner side of the rotating sleeve. The shrinkage assembly comprises a screw rod, the screw rod is rotationally connected to the inner side of the rotating sleeve, a movable seat is in threaded connection with the screw rod, a plurality of connecting rods corresponding to the movable tool bits one to one are hinged to the outer side of the movable seat, and elastic telescopic rods are hinged to the ends, away from the movable seat, of the connecting rods; the elastic telescopic rods penetrate through the side wall of the rotating sleeve and are in sliding connection with the side wall of the rotating sleeve, the ends, away from the corresponding connecting rods, of the elastic telescopic rods are hinged to the corresponding movable tool bits, and a driving part is arranged on the outer side of the rotating sleeve. According to the utility model, different drilling requirements can be met, and the universality of equipment is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mining drill bits, and more specifically, to a hole-reaming drill bit device for mining. Background Art

[0002] A drilling rig is a complex machine consisting of a machine, a unit and a mechanism. During exploration or mineral resource development, a drilling rig is a mechanical device that drives the drill bit underground to obtain physical geological data. The drill bit is the main part of the drilling rig.

[0003] After searching, the Chinese patent publication number CN210264527U discloses "a drill bit for a geotechnical drilling machine, comprising a drill rod, a percussion drill rod is fixedly connected to the lower side of the drill rod, a percussion drill bit is fixedly connected to the lower side of the percussion drill rod, a feed drill rod is installed on the outer side of the percussion drill rod, a feed drill bit is fixedly connected to the lower side of the feed drill rod, a telescopic device is arranged on the upper side of the feed drill rod, the inner diameter of the feed drill rod is larger than the outer diameter of the percussion drill rod, the length of the feed drill rod is smaller than the length of the percussion drill rod, and the outer diameter of the feed drill rod is larger than the diameter of the drill rod";

[0004] This patent mainly realizes the switching of the feed drill bit and the impact drill bit by setting a compression spring, a drill rod, an impact drill rod, a protective cover, etc.; however, since the aperture of the drill bit of this patent is constant and has no adjustment function, it will be affected when it is necessary to expand the diameter of the bottom of the borehole. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a hole-reaming drill device for mining, which has the advantage of being able to freely adjust the borehole diameter.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reaming drill bit device for mining, comprising a drill bit body, one end of the drill bit body is fixedly connected to a rotating sleeve, a plurality of movable cutter bits are hinged on the outer edge of the drill bit body, and the plurality of movable cutter bits are distributed at equal angles around the drill bit body, a contraction assembly is arranged on the inner side of the rotating sleeve, and the contraction assembly comprises a screw rod, the screw rod is rotatably connected to the inner side of the rotating sleeve, a movable seat is threadedly connected to the screw rod, a plurality of connecting rods corresponding to the movable cutter bits are hinged on the outer side of the movable seat, and a plurality of connecting rods are hinged at one end away from the movable seat with elastic telescopic rods, a plurality of the elastic telescopic rods penetrate the side wall of the rotating sleeve, and the elastic telescopic rods are slidably connected to the side wall of the rotating sleeve, a plurality of the elastic telescopic rods are hinged at one end away from the corresponding connecting rod with the corresponding movable cutter bit, and a driving member for driving the screw rod to rotate is arranged on the outer side of the rotating sleeve.

[0007] As a preferred technical solution of the utility model, a plurality of protrusions are fixedly connected to the top ends of the plurality of movable cutter heads, and the plurality of protrusions are evenly distributed on the movable cutter heads.

[0008] As a preferred technical solution of the utility model, the elastic telescopic rod includes a sleeve, which is slidably connected to the side wall of the rotating sleeve, one end of the sleeve is hinged to the connecting rod, and the other end of the sleeve is slidably connected to a sleeve rod, and the end of the sleeve rod away from the sleeve is hinged to the corresponding movable cutter head.

[0009] As a preferred technical solution of the utility model, a slider is slidably connected to the inner side of the sleeve, one side of the slider is fixedly connected to the sleeve rod, a spring is sleeved on the inner side of the sleeve, one end of the spring is in contact with the slider, and the other end of the spring is in contact with the inner wall of the sleeve.

[0010] As a preferred technical solution of the utility model, the diameter of the slider is larger than the diameter of the sleeve rod, and the diameter of the spring is smaller than the diameter of the slider.

[0011] As a preferred technical solution of the utility model, the driving member includes a motor, the output shaft of the motor is fixedly connected to a rotating shaft, and one end of the rotating shaft is fixedly connected to one end of the screw rod.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The screw is driven to rotate by the driving member, so that the movable seat moves along the axis direction of the screw, and all the connecting rods rotate, so that the connecting rods can exert an outward force on the corresponding elastic telescopic rods, which makes the elastic telescopic rods exert force on the corresponding movable cutter heads and rotate them, thereby increasing the drilling diameter of the drill body, and the drilling diameter can be adjusted by adjusting the rotation angle of the movable cutter head, which can meet different drilling requirements and greatly improve the versatility of the equipment;

[0014] 2. When the movable cutter head is drilling, the sleeve rod will be subjected to the force of the movable cutter head, and the spring will be squeezed by the slider to generate a reverse elastic force, which makes the spring buffer the movable cutter head, thereby avoiding the problem of damage to the movable cutter head caused by excessive force between the movable cutter head and the rock and soil. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the structure of a mining expansion drill device of the utility model. Figure 1 ;

[0016] Figure 2 This is a schematic diagram of the structure of a mining expansion drill device of the utility model. Figure 2 ;

[0017] Figure 3 It is a structural schematic diagram of the shrinking component of the utility model;

[0018] Figure 4 It is a structural schematic diagram of the elastic telescopic rod of the utility model;

[0019] Figure 5 It is a structural schematic diagram of the driving member of the utility model.

[0020] In the figure: 1. drill body; 2. rotating sleeve; 3. movable cutter head; 4. bump; 5. contraction assembly; 51. screw rod; 52. movable seat; 53. connecting rod; 54. elastic telescopic rod; 541. sleeve; 542. sleeve rod; 543. slider; 544. spring; 6. driving member; 61. motor; 62. rotating shaft. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] like Figures 1 to 5 As shown, the utility model provides a reaming drill bit device for mining, including a drill bit body 1, one end of the drill bit body 1 is fixedly connected to a rotating sleeve 2, a plurality of movable cutter bits 3 are hinged on the outer edge of the drill bit body 1, and the plurality of movable cutter bits 3 are distributed around the drill bit body 1 at equal angles, a contraction component 5 is arranged on the inner side of the rotating sleeve 2, the contraction component 5 includes a screw rod 51, the screw rod 51 is rotatably connected to the inner side of the rotating sleeve 2, a movable seat 52 is threadedly connected to the screw rod 51, a plurality of connecting rods 53 corresponding to the movable cutter bits 3 are hinged on the outer side of the movable seat 52, a plurality of connecting rods 53 are hinged at one end away from the movable seat 52, a plurality of elastic telescopic rods 54 are hinged at one end away from the movable seat 52, a plurality of elastic telescopic rods 54 penetrate the side wall of the rotating sleeve 2, and the elastic telescopic rods 54 are slidably connected to the side wall of the rotating sleeve 2, a plurality of elastic telescopic rods 54 are hinged at one end away from the corresponding connecting rod 53 to the corresponding movable cutter bit 3, and a driving member 6 for driving the screw rod 51 to rotate is arranged on the outer side of the rotating sleeve 2.

[0023] When the drill body 1 is drilling a hole, the screw rod 51 is driven to rotate by the driving member 6, which makes the movable seat 52 move along the axial direction of the screw rod 51, and all the connecting rods 53 are rotated, so that the connecting rods 53 can apply an outward force to the corresponding elastic telescopic rods 54, which makes the elastic telescopic rods 54 apply a force to the corresponding movable cutter head 3 and make it rotate, thereby increasing the drilling diameter of the drill body 1, and the drilling diameter can be adjusted by adjusting the rotation angle of the movable cutter head 3, which can meet different drilling requirements and greatly improve the versatility of the equipment.

[0024] Among them, the top ends of the movable cutter heads 3 are fixedly connected with a plurality of protrusions 4, and the plurality of protrusions 4 are evenly distributed on the movable cutter heads 3. The protrusions 4 can increase the force of the movable cutter heads 3 on the rock and soil, thereby improving the drilling efficiency.

[0025] Among them, the elastic telescopic rod 54 includes a sleeve 541, which is slidably connected to the side wall of the rotating sleeve 2, one end of the sleeve 541 is hinged to the connecting rod 53, and the other end of the sleeve 541 is slidably connected to the sleeve rod 542, and the end of the sleeve rod 542 away from the sleeve 541 is hinged to the corresponding movable cutter head 3, and the inner side of the sleeve 541 is slidably connected to a slider 543, one side of the slider 543 is fixedly connected to the sleeve rod 542, and the inner side of the sleeve 541 is sleeved with a spring 544, one end of the spring 544 is in contact with the slider 543, and the other end of the spring 544 is in contact with the inner wall of the sleeve 541, the diameter of the slider 543 is larger than the diameter of the sleeve rod 542, and the diameter of the spring 544 is smaller than the diameter of the slider 543.

[0026] When the movable cutter head 3 is drilling, the sleeve rod 542 will be subjected to the force of the movable cutter head 3, and the spring 544 will be squeezed by the slider 543 to generate a reverse elastic force, which makes the spring 544 buffer the movable cutter head 3, thereby avoiding the problem of damage to the movable cutter head 3 caused by excessive force between the movable cutter head 3 and the rock and soil.

[0027] The driving member 6 includes a motor 61 , an output shaft of the motor 61 is fixedly connected to a rotating shaft 62 , and one end of the rotating shaft 62 is fixedly connected to one end of the screw rod 51 .

[0028] Working principle: By starting the motor 61, the rotating shaft 62 rotates, which causes the screw rod 51 to rotate, and the movable seat 52 to move along the axial direction of the screw rod 51, which causes all the connecting rods 53 to rotate, so that the connecting rods 53 can apply an outward force to the corresponding elastic telescopic rod 54, which causes the elastic telescopic rod 54 to apply a force to the corresponding movable cutter head 3 and cause it to rotate, thereby increasing the drilling diameter of the drill body 1.

[0029] 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.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hole-reaming drill bit device for mining, comprising a drill bit body (1), one end of the drill bit body (1) being fixedly connected to a rotating sleeve (2), characterized in that: The outer edge of the drill body (1) is hinged with a plurality of movable cutter heads (3), which are distributed at equal angles around the drill body (1). A contraction assembly (5) is arranged on the inner side of the rotating sleeve (2), and the contraction assembly (5) comprises a screw rod (51), which is rotatably connected to the inner side of the rotating sleeve (2), and a movable seat (52) is threadedly connected to the screw rod (51), and the outer side of the movable seat (52) is hinged with a plurality of movable cutter heads (3) corresponding to each other. The connecting rod (53) is provided with a plurality of connecting rods (53), one end of each of the connecting rods (53) away from the movable seat (52) is hingedly connected with an elastic telescopic rod (54), the plurality of elastic telescopic rods (54) penetrate the side wall of the rotating sleeve (2), and the elastic telescopic rods (54) are slidably connected with the side wall of the rotating sleeve (2), one end of each of the elastic telescopic rods (54) away from the corresponding connecting rod (53) is hingedly connected with the corresponding movable cutter head (3), and a driving member (6) for driving the screw rod (51) to rotate is arranged on the outer side of the rotating sleeve (2).

2. A mining reamer according to claim 1, characterized in that: A plurality of protrusions (4) are fixedly connected to the top ends of the plurality of movable cutter heads (3), and the plurality of protrusions (4) are evenly distributed on the movable cutter heads (3).

3. A mining reamer according to claim 1, characterized in that: The elastic telescopic rod (54) comprises a sleeve (541), the sleeve (541) is slidably connected to the side wall of the rotating sleeve (2), one end of the sleeve (541) is hinged to the connecting rod (53), the other end of the sleeve (541) is slidably connected to a sleeve rod (542), and the end of the sleeve rod (542) away from the sleeve (541) is hinged to the corresponding movable cutter head (3).

4. A mining reamer according to claim 3, characterized in that: A slider (543) is slidably connected to the inner side of the sleeve (541), one side of the slider (543) is fixedly connected to the sleeve rod (542), and a spring (544) is sleeved on the inner side of the sleeve (541), one end of the spring (544) is in contact with the slider (543), and the other end of the spring (544) is in contact with the inner wall of the sleeve (541).

5. A mining reamer according to claim 4, characterized in that: The diameter of the slider (543) is greater than the diameter of the sleeve rod (542), and the diameter of the spring (544) is smaller than the diameter of the slider (543).

6. A mining reamer according to claim 1, characterized in that: The driving member (6) comprises a motor (61), the output shaft of the motor (61) is fixedly connected to a rotating shaft (62), and one end of the rotating shaft (62) is fixedly connected to one end of the screw rod (51).

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