Reamer bit of rotary drilling rig

Abstract

The utility model relates to the field of drill bits, and discloses a reamer bit of a rotary drilling rig, which comprises a mounting seat, the bottom end of the mounting seat is fixedly connected with a supporting rod, the outer side of the supporting rod is slidably connected with a sliding sleeve, and the left end and the right end of the sliding sleeve are fixedly connected with connecting seats. Supporting pieces are rotatably connected to the interiors of the two connecting seats, reaming pieces are rotatably connected to the rear ends of the two supporting pieces, one ends of the two reaming pieces are rotatably connected to the left end and the right end of the rear side of the placement seat respectively, a limiting seat is fixedly connected to the top end of the placement seat, and a connector is slidably connected to the interior of the limiting seat. According to the utility model, the limiting sheet is pushed by the pushing spring so as to push the clamping plate to be clamped with the fixing groove, so that the connector and the placement seat can be quickly connected together, the installation process is simpler and more convenient, the installation process is shortened, and the installation working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of drill bits, in particular to a rotary drilling rig reaming drill bit. Background Art

[0002] A rotary drill reaming drill bit is a tool specifically used on a hole digger or rotary drill rig to enlarge the diameter of an existing hole or a new hole in the ground or wall. This drill bit is usually designed for use in the construction and engineering fields to cut and remove materials through rotation and appropriate propulsion force to form or enlarge holes.

[0003] Some existing rotary drilling rig reaming drill bits are fixed to the rotary drilling rig using bolts and nuts, and special tools such as wrenches are required for their installation, which makes the installation process more complicated and slow, and reduces the installation efficiency. Therefore, a rotary drilling rig reaming drill bit is proposed to solve the above problems. Utility Model Content

[0004] In order to make up for the above shortcomings, the utility model provides a rotary drilling rig reaming drill bit, which aims to improve the problem in the prior art that some existing rotary drilling rig reaming drill bits are fixed to the rotary drilling rig using bolts and nuts, and their installation requires the use of special tools such as wrenches, which makes the installation process more cumbersome and the installation process slower, reducing the installation efficiency.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] The top end face of said sliding arm is fixedly provided with a toothed connecting strip which is cooperatively connected with said toothed connecting strip, and the toothed connecting strip is cooperatively connected with said toothed connecting strip.

[0007] As a further description of the above technical solution:

[0008] The adjustment assembly includes a plurality of adjustment holes, an adjustment seat and a rotating column, the outer sides of the plurality of adjustment holes are opened inside the support rod, the inner side of the adjustment seat is slidably connected to the outer side of the support rod, the outer side of the rotating column is threadedly connected to the inner side of the adjustment seat, the rear end of the rotating column is fixedly connected to a connecting ring, and the outer side of the connecting ring is rotatably connected to a sliding block;

[0009] As a further description of the above technical solution:

[0010] A rotating knob is fixedly connected to the front side of the rotating column, and the outer side of the sliding block is slidably connected to the inside of the adjusting hole;

[0011] As a further description of the above technical solution:

[0012] The outer side of the sliding block is slidably connected to the inside of the adjusting seat, and the bottom end of the adjusting seat is in contact with the top end of the sliding sleeve;

[0013] As a further description of the above technical solution:

[0014] The bottom end of the sliding sleeve is fixedly connected to a base, and the outer sides of the two reaming plates are fixedly connected to a plurality of teeth;

[0015] As a further description of the above technical solution:

[0016] The far ends of the two driving rods are fixedly connected with a pull ring, and the outer sides of the two clamping plates are slidably connected to the inside of the fixing groove;

[0017] As a further description of the above technical solution:

[0018] The outer sides of the two clamping plates are slidably connected to the interior of the placement seat, and the outer sides of the two limiting pieces are slidably connected to the interior of the placement seat;

[0019] As a further description of the above technical solution:

[0020] The adjacent ends of the two push springs are respectively fixedly connected to the distant ends of the two limit plates, and the two push springs are arranged inside the placement seat.

[0021] The utility model has the following beneficial effects:

[0022] 1. In the present invention, the push spring pushes the limit plate, thereby pushing the card plate to engage with the fixing groove, so that the connector and the placement seat can be quickly connected together, making the installation process simpler, shortening the installation process, and improving the installation work efficiency.

[0023] 2. In the present invention, the position of the adjusting seat is adjusted by engaging the sliding block with the adjusting holes at different positions, so that the sliding distance of the sliding sleeve is changed, and the expansion angle of the reaming piece is adjusted, so that the reaming drill bit can adjust the reaming size according to different needs, thereby improving the flexibility of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a three-dimensional schematic diagram of a rotary drilling rig reaming drill bit proposed by the utility model;

[0025] Figure 2 This is a structural schematic diagram of a clamping plate for a rotary drilling rig reaming drill bit proposed by the present invention;

[0026] Figure 3 for Figure 1 Enlarged view of point A in the middle;

[0027] Figure 4 This is a structural cross-sectional view of a support rod of a rotary drilling rig reaming drill bit proposed by the utility model.

[0028] Legend:

[0029] 1. Mounting seat; 2. Support rod; 3. Sliding sleeve; 4. Connecting seat; 5. Support plate; 6. Hole expansion plate; 7. Limiting seat; 8. Connector; 9. Fixing slot; 10. Driving rod; 11. Limiting plate; 12. Clamping plate; 13. Push spring; 14. Pull ring; 15. Adjusting hole; 16. Adjusting seat; 17. Rotating column; 18. Connecting ring; 19. Sliding block; 20. Rotating button; 21. Base; 22. Teeth. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] Reference Figure 1 - Figure 2The utility model provides an embodiment of a rotary drilling rig reaming drill bit, comprising a mounting seat 1, the bottom end of the mounting seat 1 is fixedly connected to a support rod 2, the support rod 2 is designed to facilitate the sliding of the sliding sleeve 3, the outer side of the support rod 2 is slidably connected to the sliding sleeve 3, the sliding sleeve 3 is designed to facilitate the fixed connecting seat 4, the left and right ends of the sliding sleeve 3 are fixedly connected to the connecting seat 4, the connecting seat 4 is designed to facilitate the fixing of the support piece 5, the interior of the two connecting seats 4 are rotatably connected to the support piece 5, the support piece 5 is designed to connect the reaming piece 6, the rear ends of the two support pieces 5 are rotatably connected to the reaming piece 6, the reaming piece 6 is designed to cooperate with the teeth 22, so that the reaming operation can be better performed when driven to rotate.

[0032] One end of the two reaming pieces 6 are respectively rotatably connected to the left and right ends of the rear side of the placement seat 1. The top of the placement seat 1 is fixedly connected to the limiting seat 7. The limiting seat 7 is designed to strengthen the connection between the connector 8 and the placement seat 1. The internal sliding connection of the limiting seat 7 is connected to the connector 8. The connector 8 is a component for connecting to the drill bit on the rotary drilling rig. A fixing groove 9 is provided inside the connector 8. The fixing groove 9 is designed to engage with the clamping plate 12 to fix the connector 8 and the placement seat 1. The left and right sides of the fixing groove 9 are both slidably connected to the driving rod 10. The driving rod 10 is designed to facilitate the connection of the limiting piece 11.

[0033] The adjacent ends of the two driving rods 10 are fixedly connected to the limiting plate 11, and the limiting plate 11 is designed to limit the card plate 12. The adjacent ends of the two limiting plates 11 are fixedly connected to the card plate 12, and the card plate 12 is designed to be engaged with the fixing groove 9 under the push of the pushing spring 13 and the limiting plate 11, thereby fixing the connector 8 and the placement seat 1. The outer side of the two driving rods 10 is sleeved with a pushing spring 13, and the pushing spring 13 is designed to facilitate pushing the limiting plate 11, thereby pushing the card plate 12. The interior of the support rod 2 is provided with an adjustment component for adjusting the opening angle of the reaming plate 6.

[0034] The bottom end of the sliding sleeve 3 is fixedly connected to the base 21, and the outer sides of the two reaming plates 6 are fixedly connected to a plurality of teeth 22. The teeth 22 are designed to facilitate the reaming plates 6 to better reame. The far ends of the two driving rods 10 are fixedly connected to pull rings 14. The pull rings 14 are designed to facilitate pulling the driving rods 10. The outer sides of the two clamping plates 12 are slidably connected to the inside of the fixed groove 9. The clamping plates 12 are designed to be engaged with the fixed groove 9 under the push of the push spring 13 and the limit plate 11, thereby fixing the connector 8 and the placement seat 1.

[0035] The outer sides of the two card plates 12 are slidably connected to the inside of the placement seat 1. The card plate 12 is designed to be engaged with the fixing groove 9 under the push of the push spring 13 and the limit plate 11, thereby fixing the connector 8 and the placement seat 1. The outer sides of the two limit plates 11 are slidably connected to the inside of the placement seat 1. The limit plate 11 is designed to limit the card plate 12. The adjacent ends of the two push springs 13 are respectively fixedly connected to the far ends of the two limit plates 11. The two push springs 13 are arranged inside the placement seat 1. The push spring 13 is designed to facilitate pushing the limit plate 11, thereby pushing the card plate 12.

[0036] Figure 3 - Figure 4 The adjustment assembly includes multiple adjustment holes 15, an adjustment seat 16 and a rotating column 17. The outer sides of the multiple adjustment holes 15 are opened inside the support rod 2. The adjustment holes 15 are designed to facilitate the sliding block 19 to enter the interior thereof, thereby fixing the position of the adjustment seat 16. The interior of the adjustment seat 16 is slidably connected to the outer side of the support rod 2. The adjustment seat 16 is designed to block the sliding sleeve 3. The outer side of the rotating column 17 is threadedly connected to the interior of the adjustment seat 16. The rotating column 17 is designed to cooperate with the connecting ring 18 to connect the sliding block 19.

[0037] The rear end of the rotating column 17 is fixedly connected to a connecting ring 18, and the outer side of the connecting ring 18 is rotatably connected to a sliding block 19. The sliding block 19 is designed to enter the interior of the adjusting hole 15, thereby fixing the adjusting seat 16. The front side of the rotating column 17 is fixedly connected to a rotating button 20. The rotating button 20 is designed to facilitate the rotation of the rotating column 17. The outer side of the sliding block 19 is slidably connected to the interior of the adjusting hole 15. The sliding block 19 is designed to enter the interior of the adjusting hole 15, thereby fixing the adjusting seat 16. The outer side of the sliding block 19 is slidably connected to the interior of the adjusting seat 16. The sliding block 19 is designed to enter the interior of the adjusting hole 15, thereby fixing the adjusting seat 16. The bottom end of the adjusting seat 16 contacts the top of the sliding sleeve 3, and the adjusting seat 16 is designed to block the sliding sleeve 3.

[0038] Working principle: When it is necessary to use a reaming drill to perform reaming operations, insert the connector 8 into the interior of the limit seat 7, and the connector 8 will squeeze the card plate 12. When the connector 8 reaches the bottom, the push spring 13 will also push the limit piece 11, thereby pushing the card plate 12 to engage with the fixing groove 9, thereby fixing the placement seat 1 and the connector 8. When it is necessary to separate the placement seat 1 and the connector 8, it is only necessary to pull the pull ring 14 to pull the driving rod 10, drive the limit piece 11 and the card plate 12, and let the card plate 12 leave the interior of the fixing groove 9. By letting the push spring 13 push the limit The piece 11 is pushed to push the card plate 12 to engage with the fixing groove 9, so that the connector 8 and the placement seat 1 can be quickly connected together, making the installation process simpler, shortening the installation process, and improving the installation work efficiency. When it is necessary to adjust the opening angle of the reaming piece 6, the rotating knob 20 is turned by hand, thereby rotating the rotating column 17 and the connecting ring 18, driving the sliding block 19 to separate from the adjusting hole 15. At this time, the adjusting seat 16 can be moved to adjust the moving length of the sliding sleeve 3 on the support rod 2. After determining the position, the rotating knob 20 is rotated in the opposite direction to drive the rotating The column 17 and the connecting ring 18 rotate in opposite directions, driving the sliding block 19 to engage with the adjusting holes 15 at different positions, thereby fixing the adjusting seat 16. At this time, the moving distance of the sliding sleeve 3 changes. When the rotating drilling rig drives the entire drill bit to contact the ground in the hole, the base 21 and the sliding sleeve 3 will be driven to rise on the outside of the support rod 2 by the downward pressure, and the support piece 5 will also be driven to support the reaming piece 6, so that the reaming piece 6 can be expanded. The longer the sliding distance of the sliding sleeve 3 in one interval on the support rod 2, the greater the angle at which the reaming piece 6 is driven to be expanded by the support piece 5, and the sliding sleeve 3 will be moved. The shorter the sliding distance of the movable sleeve 3 within an interval on the support rod 2, the smaller the angle at which the reaming piece 6 is driven to expand by the support piece 5. When the angle of the reaming piece 6 is determined, the rotary drilling rig drives the connector 8 to rotate, thereby driving the entire reaming drill bit to rotate and perform the reaming operation. By allowing the sliding block 19 to engage with the adjustment holes 15 at different positions, the position of the adjustment seat 16 is adjusted, so that the sliding distance of the sliding sleeve 3 changes, and the expansion angle of the reaming piece 6 is adjusted, so that the reaming drill bit can adjust the reaming size according to different needs, thereby improving the flexibility of use.

[0039] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A rotary drilling rig reaming drill bit, comprising a mounting seat (1), characterized in that: The bottom end of the placement seat (1) is fixedly connected to a support rod (2), the outer side of the support rod (2) is slidably connected to a sliding sleeve (3), the left and right ends of the sliding sleeve (3) are fixedly connected to a connection seat (4), the interiors of the two connection seats (4) are rotatably connected to support plates (5), the rear ends of the two support plates (5) are rotatably connected to expansion plates (6), one end of the two expansion plates (6) are rotatably connected to the left and right ends of the rear side of the placement seat (1), the top end of the placement seat (1) is fixedly connected to a limit seat (7), the limit seat The interior of (7) is slidably connected to a connector (8), a fixing groove (9) is provided inside the connector (8), and driving rods (10) are slidably connected to the interiors of the left and right sides of the fixing groove (9), and the adjacent ends of the two driving rods (10) are fixedly connected to the limiting plates (11), and the adjacent ends of the two limiting plates (11) are fixedly connected to the clamping plates (12), and the outer sides of the two driving rods (10) are sleeved with push springs (13), and the interior of the support rod (2) is provided with an adjustment component for adjusting the opening angle of the reaming plate (6).

2. The rotary drilling rig reaming drill bit according to claim 1, characterized in that: The adjustment assembly comprises a plurality of adjustment holes (15), an adjustment seat (16) and a rotating column (17), wherein the outer sides of the plurality of adjustment holes (15) are opened inside the support rod (2), the inner side of the adjustment seat (16) is slidably connected to the outer side of the support rod (2), the outer side of the rotating column (17) is threadedly connected to the inner side of the adjustment seat (16), the rear end of the rotating column (17) is fixedly connected to a connecting ring (18), and the outer side of the connecting ring (18) is rotatably connected to a sliding block (19).

3. The rotary drilling rig reaming drill bit according to claim 2, characterized in that: A rotating button (20) is fixedly connected to the front side of the rotating column (17), and the outer side of the sliding block (19) is slidably connected to the inside of the adjusting hole (15).

4. The rotary drilling rig reaming drill bit according to claim 2, characterized in that: The outer side of the sliding block (19) is slidably connected to the inside of the adjustment seat (16), and the bottom end of the adjustment seat (16) is in contact with the top end of the sliding sleeve (3).

5. The rotary drilling rig reaming drill bit according to claim 1, characterized in that: The bottom end of the sliding sleeve (3) is fixedly connected to a base (21), and the outer sides of the two reaming plates (6) are fixedly connected to a plurality of teeth (22).

6. The rotary drilling rig reaming drill bit according to claim 1, characterized in that: The far ends of the two driving rods (10) are fixedly connected to a pull ring (14), and the outer sides of the two clamping plates (12) are slidably connected to the inside of the fixing groove (9).

7. The rotary drilling rig reaming drill bit according to claim 1, characterized in that: The outer sides of the two clamping plates (12) are slidably connected to the interior of the placement seat (1), and the outer sides of the two limiting plates (11) are slidably connected to the interior of the placement seat (1).

8. The rotary drilling rig reaming drill bit according to claim 1, characterized in that: The adjacent ends of the two push springs (13) are respectively fixedly connected to the distant ends of the two limit plates (11), and the two push springs (13) are arranged inside the placement seat (1).

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