CN215949366U

CN215949366U - Rock-soil drilling and digging reamer bit with protection structure

Info

Publication number: CN215949366U
Application number: CN202122284846.0U
Authority: CN
Inventors: 李涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-22
Filing date: 2021-09-22
Publication date: 2022-03-04
Anticipated expiration: 2031-09-22

Abstract

The utility model discloses a reaming bit with a protective structure for rock and soil drilling, which comprises a bit main body and a connecting sleeve, wherein the connecting sleeve is fixedly connected with the right side of the bit main body; the outer side of the connecting sleeve is fixedly connected with a plurality of connecting seats, and movable blades are movably connected to the connecting seats. One side of the movable blade, which is close to the connecting sleeve, is provided with a plurality of rotating mechanisms, wherein one of the rotating mechanisms is connected with an elastic control rod, and the other rotating mechanisms are connected with telescopic rods. The movable blade can play a certain buffering role during reaming by arranging the elastic control rod, so that the movable blade is prevented from being in rigid contact with soil all the time during reaming, and the movable blade is prevented from being easily damaged due to larger impact force when the movable blade is in contact with objects with higher hardness, such as stones and the like.

Description

Rock-soil drilling and digging reamer bit with protection structure

Technical Field

The utility model belongs to the technical field of mining drill bits, and particularly relates to a reaming drill bit with a protective structure for rock and soil drilling.

Background

A drilling machine is a set of complex machine and consists of a machine, a machine set and a mechanism. The drilling machine is a mechanical device which drives a drill bit to drill underground to obtain real geological data in exploration or mineral resource (including solid ore, liquid ore, gas ore and the like) development.

Through retrieval, chinese patent No. CN212614517U discloses a reaming bit device for mining industry, which comprises a bit body, a rotary sleeve and a second rotary seat, wherein the rotary sleeve is fixedly arranged at the right side of the bit body, the second rotary seat is fixedly arranged at the outer end face of the rotary sleeve, and the movable bit at the rotary sleeve can be extended through the arrangement relationship of an electric push rod, a movable plate, a first rotary seat, a movable support, a second rotary seat and a movable blade, so as to meet the requirement of drilling and expanding.

But there is not the structure of protecting movable blade among the above-mentioned patent, because movable blade and device junction are rigid connection, when carrying out reaming, movable blade bears great impact, leads to movable blade's life to be lower.

Therefore, the reaming bit with the protective structure for the rock drilling is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

In view of the above problems, the present invention provides a reamer bit with a protective structure for rock drilling, which can play a role of buffering and protecting a movable blade by providing a rotating mechanism and an elastic control rod, so as to solve the problems in the background art.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a reaming bit with a protective structure for rock and soil drilling comprises a bit main body and a connecting sleeve, wherein the connecting sleeve is fixedly connected with the right side of the bit main body;

the outer side of the connecting sleeve is fixedly connected with a plurality of connecting seats, and movable blades are movably connected to the connecting seats.

One side of the movable blade, which is close to the connecting sleeve, is provided with a plurality of rotating mechanisms, wherein one rotating mechanism is connected with an elastic control rod, and the other rotating mechanisms are connected with telescopic rods;

the connecting sleeve is characterized in that a control cavity is arranged inside the connecting sleeve and communicated with the outside through a plurality of sliding grooves, a control mechanism for controlling the elastic control rod to move is arranged inside the control cavity, and one end, far away from the movable blade, of the telescopic rod is rotatably connected with the sliding grooves.

Furthermore, the movable blade is of an arc-shaped blade structure, and one side of the movable blade, which is close to the connecting sleeve, is provided with a notch.

Further, the number of the chutes is equal to the number of the movable blades.

Further, slewing mechanism includes connecting rod, first spring and turning block, connecting rod fixed connection is inside the fluting, the turning block movable sleeve is established in the connecting rod outside, first spring is equipped with two and all establishes on the connecting rod, two first spring is located the turning block both ends respectively and sets up, first spring both ends respectively with turning block and fluting lateral wall counterbalance setting, slewing mechanism passes through turning block and telescopic link or elastic control pole fixed connection.

Furthermore, the elastic control rod comprises a sliding rod, a fixed cylinder and a second spring, the sliding rod is fixedly connected with the rotating block, the sliding rod is connected inside the fixed cylinder in a sliding mode, the second spring is located between the sliding rod and the fixed cylinder, and the fixed cylinder is matched with the control mechanism.

Further, control mechanism includes pneumatic cylinder and sliding block, inside pneumatic cylinder fixed connection control chamber, pneumatic cylinder output and sliding block fixed connection, sliding block sliding connection is inside the control chamber, fixed section of thick bamboo runs through the spout and rotates with the sliding block and be connected.

Compared with the prior art, the utility model has the beneficial effects that:

1. the elastic control rod is arranged, so that the movable blade can play a certain buffering role during chambering, and the movable blade is prevented from being in rigid contact with soil all the time during chambering, so that the movable blade is prevented from being damaged easily due to large impact force when the movable blade is in contact with objects with high hardness, such as stones and the like;

2. through setting up slewing mechanism, can realize when movable blade carries out reaming, play the effect of buffering in the side direction position to can further play the effect of buffering to movable blade, thereby play the effect of protection to movable blade.

Drawings

Fig. 1 is a schematic perspective view illustrating a reamer head for rock drilling with a protective structure according to the present invention;

fig. 2 is a schematic front sectional structural view of a reamer bit for rock drilling with a protective structure according to the present invention;

fig. 3 is a schematic structural view of a back portion of a movable blade in a reamer bit for rock drilling with a protective structure according to the present invention;

fig. 4 is a schematic sectional structure view of a connection portion between a sliding rod and a fixed cylinder in the reamer bit for rock drilling with a protective structure according to the present invention.

In the figure: 1. a drill bit body; 2. connecting a sleeve; 21. a control chamber; 22. a chute; 3. a connecting seat; 4. a movable blade; 41. grooving; 5. a rotating mechanism; 51. a connecting rod; 52. a first spring; 53. rotating the block; 6. an elastic control lever; 61. a slide bar; 62. a fixed cylinder; 63. a second spring; 7. a telescopic rod; 8. a control mechanism; 81. a hydraulic cylinder; 82. and a slider.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Referring to fig. 1-2, a reaming bit with a protective structure for rock drilling comprises a bit body 1 and a connecting sleeve 2, wherein the connecting sleeve 2 is fixedly connected with the right side of the bit body 1, and the connecting sleeve 2 is mounted on a drilling machine, so that the connecting sleeve 2 drives the bit body 1 to rotate, and the bit body 1 is drilled.

Referring to fig. 1 and 3, the outer side of the connecting sleeve 2 is fixedly connected with a plurality of connecting seats 3, the connecting seats 3 are movably connected with movable blades 4, wherein the connecting seats are connected with a fixed rod 31, the movable blades 4 are sleeved on the fixed rod 31 to slide and rotate with the fixed rod 31, and hole expansion is achieved through the movable blades 4.

Referring to fig. 1 and 3, the movable blade 4 is an arc-shaped blade structure, a slot 41 is formed in one side of the movable blade 4 close to the connecting sleeve 2, a plurality of rotating mechanisms 5 are arranged on one side of the movable blade 4 close to the connecting sleeve 2, the rotating mechanisms 5 are located inside the slot 41, one rotating mechanism 5 is connected with an elastic control rod 6, and the other rotating mechanisms 5 are connected with telescopic rods 7

Referring to fig. 3, the rotating mechanism 5 includes a connecting rod 51, first springs 52 and a rotating block 53, the connecting rod 51 is fixedly connected inside the slot 41, the rotating block 53 is movably sleeved on the outer side of the connecting rod 51, the first springs 52 are provided with two springs and are all sleeved on the connecting rod 51, the two first springs 52 are respectively located at two ends of the rotating block 53, two ends of the first spring 52 are respectively abutted to the rotating block 53 and the side wall of the slot 41, and the rotating mechanism 5 is fixedly connected with the telescopic rod 7 or the elastic control rod 6 through the rotating block 53.

The rotating mechanism 5 can achieve the function of buffering in the lateral direction through the first spring 52 when the movable blade 4 is reamed, so that the movable blade 4 can be further buffered.

Referring to fig. 4, elastic control rod 6 includes slide bar 61, fixed cylinder 62 and second spring 63, slide bar 61 and turning block 53 fixed connection, slide bar 61 sliding connection is inside fixed cylinder 62, second spring 63 is located between slide bar 61 and fixed cylinder 62, fixed cylinder 62 and control mechanism 8 cooperate the setting, elastic control rod 6 can realize that movable blade 4 plays certain cushioning effect through second spring 63 when carrying out reaming, and then avoid movable blade 4 to carry out rigid contact with earth all the time when reaming, the impact force that movable blade 4 received when the great object contact of hardness such as movable blade 4 that leads to and stone is great, the condition emergence such as the easy damage of movable blade 4 that leads to takes place to great

Referring to fig. 1 and 2, a control cavity 21 is arranged inside the connecting sleeve 2, the control cavity 21 is communicated with the outside through a plurality of sliding grooves 22, the number of the sliding grooves 22 is equal to that of the movable blades 4, and one end, far away from the movable blades 4, of the telescopic rod 7 is rotatably connected with the sliding grooves 22.

Referring to fig. 2, the control mechanism 8 for controlling the movement of the elastic control rod 6 is arranged in the control cavity 21, the control mechanism 8 comprises a hydraulic cylinder 81 and a sliding block 82, the hydraulic cylinder 81 is fixedly connected with the control cavity 21, the output end of the hydraulic cylinder 81 is fixedly connected with the sliding block 82, the sliding block 82 is slidably connected in the control cavity 21, the fixed cylinder 62 runs through the sliding groove 22 and is rotatably connected with the sliding block 82, the movable blade 4 is controlled to rotate through the hydraulic cylinder 81, and then the drilling holes can be expanded into diameters with different sizes.

The operating principle of the present invention will now be described as follows:

the during operation, install adapter sleeve 2 on the rig, can realize that adapter sleeve 2 drives drill bit main part 1 and rotates, and then realize that drill bit main part 1 drills, then movable blade 4 will expand to drilling, in-process elasticity control lever 6 can realize that movable blade 4 plays certain cushioning effect when reaming, and then avoid movable blade 4 to carry out rigid contact with earth when reaming all the time, the impact force that movable blade 4 received when the great object of hardness such as movable blade 4 that leads to and rocks contacted is great, it takes place to lead to the condition such as movable blade 4 damages easily, slewing mechanism 5 can realize playing the effect of buffering in the side direction position, thereby can further play the effect of buffering to movable blade 4, thereby play the effect of protection to movable blade 4.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims

1. A reaming bit with a protective structure for rock drilling comprises a bit main body (1) and a connecting sleeve (2), and is characterized in that the connecting sleeve (2) is fixedly connected with the right side of the bit main body (1);

a plurality of connecting seats (3) are fixedly connected to the outer side of the connecting sleeve (2), and movable blades (4) are movably connected to the connecting seats (3);

one side, close to the connecting sleeve (2), of the movable blade (4) is provided with a plurality of rotating mechanisms (5), one of the rotating mechanisms (5) is connected with an elastic control rod (6), and the other rotating mechanisms (5) are connected with telescopic rods (7);

connecting sleeve (2) inside is equipped with control chamber (21), control chamber (21) set up through a plurality of spouts (22) and external intercommunication, control chamber (21) inside is equipped with control mechanism (8) of control elastic control pole (6) motion, the one end that movable blade (4) were kept away from in telescopic link (7) rotates with spout (22) and is connected.

2. A reamer bit with a protective structure for rock drilling and excavation according to claim 1, wherein the movable blade (4) is of an arc-shaped blade structure, and a slot (41) is formed in one side of the movable blade (4) close to the connecting sleeve (2).

3. A reamer bit for rock drilling with a protective structure according to claim 1, wherein the number of the sliding grooves (22) is equal to the number of the movable blades (4).

4. The reaming bit with the protection structure for rock-soil drilling is used to claim 2, characterized in that, slewing mechanism (5) includes connecting rod (51), first spring (52) and turning block (53), connecting rod (51) fixed connection is inside fluting (41), turning block (53) activity cover is established in the connecting rod (51) outside, first spring (52) are equipped with two and all establish on connecting rod (51), two first spring (52) are located turning block (53) both ends respectively and set up, first spring (52) both ends respectively with turning block (53) and fluting (41) lateral wall counterbalance setting, slewing mechanism (5) are through turning block (53) and telescopic link (7) or elastic control pole (6) fixed connection.

5. A reamer bit with a protection structure for rock drilling is used in claim 4, characterized in that, the elastic control rod (6) comprises a sliding rod (61), a fixed cylinder (62) and a second spring (63), the sliding rod (61) is fixedly connected with the rotating block (53), the sliding rod (61) is slidably connected inside the fixed cylinder (62), the second spring (63) is located between the sliding rod (61) and the fixed cylinder (62), and the fixed cylinder (62) is matched with the control mechanism (8).

6. A reamer bit with a protective structure for rock drilling is used in claim 5, characterized in that, control mechanism (8) includes hydraulic cylinder (81) and sliding block (82), hydraulic cylinder (81) is fixedly connected with the inside of control chamber (21), the output end of hydraulic cylinder (81) is fixedly connected with sliding block (82), sliding block (82) is slidably connected with the inside of control chamber (21), and fixed cylinder (62) runs through sliding chute (22) and is rotatably connected with sliding block (82).