High-stability variable-diameter rotary drilling tool

Abstract

The utility model discloses a high-stability variable-diameter rotary excavating drilling tool which comprises a drilling tool supporting body and a drill bit connected with the upper side of the drilling tool supporting body, and drilling teeth are arranged on the outer side of the drill bit. The first positioning block is installed at the bottom of the drilling tool supporting body, the lower side of the first positioning block is connected with a drilling machine connecting rod, a limiting assembly is arranged on the lower side of the drilling tool supporting body, and a preset groove is formed in the middle of the drilling tool supporting body. According to the high-stability variable-diameter rotary excavating drilling tool, the rotary excavating diameter of the drilling tool can be conveniently adjusted in the using process, so that the drilling tool can easily calibrate and adjust the rotary excavating diameter of the drilling tool according to different using conditions, the rotary excavating effect of the drilling tool is prevented from being affected, and the using efficiency of the drilling tool is improved; and meanwhile, after the device is used, the drilling tool can be conveniently and rapidly disassembled and maintained, so that the damaged drilling tool is easily replaced and overhauled, the situation that the machining efficiency of the drilling machine is affected by the damaged drilling tool is avoided, and the better using effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to rotary drilling tool technical field, concretely is a high stability variable diameter rotary drilling tool. BACKGROUND

[0002] Rotary drilling tool refers to various tools used when rotary drilling machine is under construction, mainly used for hole forming operation. Rotary drilling tools are various, each has its specific use and applicable scene, and the design and material selection of rotary drilling tool have important influence on its performance. Common materials include high-strength alloy steel and wear-resistant alloy, which can improve the durability and adaptability of the tool, such as;

[0003] The utility model provides a rotary drilling tool, belongs to the technical field of rotary drilling machine, in the rotary drilling tool, the drill bucket is provided with the baffle, the baffle top is power chamber, power assembly sets up in power chamber, first rotary lever rotates and is provided with guide groove and anti - fall block in guide hole, first rotary lever is located baffle below and is provided with the baffle ring on the rod body, second rotary lever includes guide rod and screw rod, guide rod is provided with guide block, and the bottom of screw rod is provided with broken part, sliding sleeve sliding sleeve sets up on first rotary lever, is located between baffle and baffle ring, and both sides are symmetrically hinged with first paddle, lifting cylinder cooperates with screw rod, and both sides are symmetrically hinged with second paddle, first paddle and second paddle are hinged. The above-mentioned rotary drilling tool effectively improves the problem that the sand or soil with high humidity, high viscosity and relatively solid extrusion block is not convenient to unload.

[0004] However, the existing rotary drilling tool is not convenient to adjust its rotary drilling diameter during use, which makes it difficult for the device to calibrate and adjust its rotary drilling diameter according to different use conditions, affecting the rotary drilling effect of the device and reducing the use efficiency of the device.

[0005] Therefore, in view of the above problems, it is necessary to make innovative design on the basis of the original rotary drilling tool. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a high stability variable diameter rotary drilling tool to solve the problem that the rotary drilling diameter is not convenient to adjust during use, which makes it difficult for the device to calibrate and adjust its rotary drilling diameter according to different use conditions, affecting the rotary drilling effect of the device and reducing the use efficiency of the device.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a high stability variable diameter rotary drilling tool, comprising: a drill tool support body, a drill bit connected to the upper side of the drill tool support body, and drill teeth arranged on the outer side of the drill bit;

[0008] Also included are:

[0009] The first positioning block is installed at the bottom of the drill tool support body, and the lower side of the first positioning block is connected with the drilling machine connecting rod, the lower side of the drill tool support body is provided with a limiting assembly, and a preset slot is formed in the middle part of the drill tool support body, the inside of the preset slot is provided with a drill cutter, and the outside of the drill cutter is connected with a guide strip, the lower side of the drill cutter is connected with a second driving rod, and the inside of the second driving rod is connected with a first driving disc;

[0010] The second driving disc is arranged on the upper side of the first driving disc, and the upper side of the second driving disc is connected with a driving motor, the lower side of the drill bit is connected with a connecting block, and the outer side of the connecting block is installed with a second guide block, and the outer side of the upper end of the connecting block penetrates a limiting rod.

[0011] In a possible implementation, the second driving disc is relatively engagedly connected with the first driving disc, and the first driving disc and the second driving rod are relatively rotatably connected with the drill tool support body.

[0012] In a possible implementation, the second driving rod is relatively threadedly connected with the drill cutter, and the drill cutter is arranged at equal angles in the middle part of the drill tool support body.

[0013] In a possible implementation, the drill cutter is relatively slidably connected with the guide strip, and the longitudinal section of the guide strip is in a "T" shaped structure.

[0014] In a possible implementation, the second guide block and the connecting block are both relatively slidably connected with the drill tool support body, and the limiting rod is relatively threadedly connected with the drill tool support body and the connecting block.

[0015] In a possible implementation, the limiting assembly comprises a first driving rod installed at the lower side of the drill tool support body, and the upper side of the first driving rod penetrates a locking block, the inside of the first driving rod is connected with a mounting block, and the outside of the mounting block is connected with a guide rod.

[0016] The first driving rod is relatively rotatably connected with the drill tool support body, and the first driving rod is relatively threadedly connected with the mounting block.

[0017] In a possible implementation, the mounting block is relatively slidably connected with the guide rod, and the guide rod is relatively clippably connected with the drilling machine connecting rod.

[0018] In a possible implementation, the second guide block is relatively slidably connected with the drill tool support body, and the second guide block is symmetrically arranged about the central axis of the connecting block.

[0019] Compared with the prior art, the high-stability variable-diameter rotary drilling tool has the advantages that: in the process of use, the rotary drilling diameter of the device can be conveniently adjusted, the rotary drilling diameter of the device can be conveniently calibrated and adjusted according to different use conditions, the rotary drilling effect of the device is avoided from being affected, the use efficiency of the device is improved, the drilling tool that is damaged can be conveniently replaced and maintained after the use of the device is completed, the processing efficiency of the drilling machine is avoided from being affected by the damaged drilling tool, and the device has better use effect, and the specific embodiments are shown as follows:

[0020] 1. The first driving disc and the second driving rod are rotated in the interior of the drill support body by the driving motor cooperating with the second driving disc, so that the drill bit connected to the outer side of the second driving rod is displaced to the outer side of the drill support body along the guide strip, the rotary drilling diameter of the device can be adjusted according to different use conditions, the rotary drilling efficiency of the device is avoided from being limited by the rotary drilling diameter, and the use efficiency of the device is improved.

[0021] 2. The installation block is displaced to the outer side by the first driving rod cooperating with the guide rod, so that the installation block is loosened from the clamping and limiting of the drilling machine connecting rod, the drill support body can be pulled out upward by the operator, different drilling tools can be replaced according to different processing requirements of the device, and the drilling processing effect of the device is improved.

[0022] 3. The connecting block and the series limiting are loosened by the rotation limiting rod rotating to the outer side, the drill support body and the drill bit can be separated and disassembled by the operator, the damaged drill bit and drill teeth can be replaced and maintained by the operator, and the drilling processing quality of the device is avoided from being affected by the damaged drill bit and drill teeth. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a front view cross-sectional structure schematic view of the utility model;

[0024] Figure 2 It is a side view cross-sectional structure schematic view of the utility model;

[0025] Figure 3 It is a top view cross-sectional structure schematic view of the utility model;

[0026] Figure 4 It is a first driving rod and installation block connection integral cross-sectional structure schematic view of the utility model;

[0027] Figure 5 It is a drill bit and guide strip connection integral cross-sectional structure schematic view of the utility model.

[0028] In the figure: 1, drill tool support body; 2, first positioning block; 3, drilling machine connecting rod; 4, first driving rod; 5, locking block; 6, mounting block; 7, guide rod; 8, preset slot; 9, drill cutter; 10, guide strip; 11, second driving rod; 12, first driving disc; 13, second driving disc; 14, driving motor; 15, drill bit; 16, connecting block; 17, second guide block; 18, limiting rod; 19, drill tooth. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0030] Please refer to Figures 1-5 The utility model provides a kind of technical scheme: a high stability variable-diameter rotary drilling tool, including drill tool support body 1, first positioning block 2, drilling machine connecting rod 3, first driving rod 4, locking block 5, mounting block 6, guide rod 7, preset slot 8, drill cutter 9, guide strip 10, second driving rod 11, first driving disc 12, second driving disc 13, driving motor 14, drill bit 15, connecting block 16, second guide block 17, limiting rod 18 and drill tooth 19.

[0031] Specifically as Figure 1 , Figure 3 And Figure 5 Indicated, in the process of device use, by starting driving motor 14 arranged in the inside of drill tool support body 1, so that driving motor 14 drives its downside connection second driving disc 13 rotates in the inside of drill tool support body 1, and because of the meshing connection structure of second driving disc 13 and first driving disc 12, so that second driving disc 13 in the rotating process can effectively promote first driving disc 12 and second driving rod 11 rotate in the inside of drill tool support body 1, at this moment because of the screw thread connection structure of second driving rod 11 and drill cutter 9, so that rotating second driving rod 11 can effectively promote its outside connection drill cutter 9 displacement to outside, and because of the sliding connection structure of drill cutter 9 and guide strip 10, so that drill cutter 9 is guided and limited in the process of displacement to outside in the inside of preset slot 8 by guide strip 10, avoid that drill cutter 9 generates position deviation in the process of movement, so that device is easy to adjust the rotary drilling diameter of itself according to different use conditions, avoid that the rotary drilling efficiency of device is limited by rotary drilling diameter, improve the use efficiency of device.

[0032] Specifically as Figure 1 , Figure 2 And Figure 4As shown, after the device is used, the locking block 5 connected to the upper side of the first driving rod 4 is pulled outward, so that the locking block 5 is loosened from the series connection of the first driving rod 4 and the drill tool support 1, and at this time, the first driving rod 4 provided on the outer side of the drill tool support 1 is pushed to rotate by the hydraulic driving device, and due to the threaded connection structure of the first driving rod 4 and the mounting block 6, the first driving rod 4 can effectively drive the mounting block 6 connected to the inner side of the first driving rod 4 to move inward, and at this time, due to the sliding connection structure of the mounting block 6 and the guide rod 7, the mounting block 6 is guided and limited by the guide rod 7 during the inward movement, so that the mounting block 6 is prevented from being deviated during the inward movement, and at this time, due to the clamping connection structure of the mounting block 6 and the drilling machine connecting rod 3, the mounting block 6 is loosened from the clamping and limiting of the drilling machine connecting rod 3, so that the drill tool support 1 and the first positioning block 2 are pulled upward to be separated from the upper side of the drilling machine connecting rod 3, and the operator can conveniently disassemble and maintain the drill tool, and the disassembly and maintenance labor intensity of the operator is reduced.

[0033] Secondly, after the device is used, the limiting rod 18 is rotated on the upper side of the connecting block 16, and due to the threaded connection structure of the limiting rod 18, the connecting block 16 and the drill tool support 1, the limiting rod 18 is loosened from the series limiting of the connecting block 16 and the drill tool support 1, and due to the sliding connection structure of the connecting block 16 and the second guide block 17 and the drill tool support 1, the operator can conveniently pull the drill bit 15 upward, and at this time, the drill bit 15 is moved upward along the connecting block 16 and the second guide block 17 to be separated from the inside of the drill tool support 1, so that the operator can conveniently replace and maintain the damaged drill bit 15 and the drill tooth 19, and meanwhile, a brand new drill bit 15 is installed back into the inside of the drill tool support 1 along the connecting block 16 and the second guide block 17 arranged on the lower side of the drill bit 15, and at this time, the limiting rod 18 is rotated inward on the upper side of the connecting block 16, so that the connecting block 16 and the drill bit 15 are fixed on the upper side of the drill tool support 1 again, so as to complete the quick replacement and maintenance work of the damaged drill bit, and improve the disassembly and maintenance efficiency of the device.

[0034] The standard parts used in the utility model can be purchased from the market, and the special-shaped parts can be ordered according to the description and the drawings, and the specific connection mode of each part adopts the conventional means such as bolts, rivets and welding in the prior art, the machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection mode in the prior art, which will not be described in detail here, and the contents not described in detail in the description belong to the prior art known to the person skilled in the art.

[0035] Although the utility model has been explained in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or make equivalent replacement to part of the technical features, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A high-stability variable-diameter rotary drilling tool, comprising: The utility model provides a drilling tool support body (1), and the drill bit (15) connected on the upper side of the drilling tool support body (1), and the outer side of the drill bit (15) is provided with drill teeth (19); It is characterized in that further comprising: The first positioning block (2) is installed at the bottom of the drilling tool support body (1), and the lower side of the first positioning block (2) is connected with the drilling rig connecting rod (3), the lower side of the drilling tool support body (1) is provided with a limiting assembly, and the middle part of the drilling tool support body (1) is provided with a preset slot (8), the inside of the preset slot (8) is provided with a drill cutter (9), and the outer side of the drill cutter (9) is connected with a guide strip (10), the lower side of the drill cutter (9) is connected with a second driving rod (11), and the inner side of the second driving rod (11) is connected with a first driving disc (12); The second driving disc (13) is provided on the upper side of the first driving disc (12), and the upper side of the second driving disc (13) is connected with a driving motor (14), the lower side of the drill bit (15) is connected with a connecting block (16), and the outer side of the connecting block (16) is provided with a second guide block (17), and the outer side of the upper end of the connecting block (16) penetrates a limiting rod (18).

2. The high-stability variable-diameter rotary digging tool according to claim 1, characterized in that: The second driving disc (13) is relatively engaged with the first driving disc (12), and the first driving disc (12) and the second driving rod (11) are relatively rotatably connected with the drilling tool support body (1).

3. The high-stability variable-diameter rotary digging tool according to claim 1, characterized in that: The second driving rod (11) is relatively threadedly connected with the drill cutter (9), and the drill cutter (9) is arranged at equal angles in the middle part of the drilling tool support body (1).

4. The high-stability variable-diameter rotary digging tool according to claim 1, characterized in that: The drill cutter (9) is relatively slidably connected with the guide strip (10), and the longitudinal section of the guide strip (10) is a "T" shaped structure.

5. The high-stability variable-diameter rotary digging tool according to claim 1, characterized in that: The second guide block (17) and the connecting block (16) are relatively slidably connected with the drilling tool support body (1), and the limiting rod (18) is relatively threadedly connected with the drilling tool support body (1) and the connecting block (16).

6. The high-stability variable-diameter rotary digging tool according to claim 1, characterized in that: The limiting assembly comprises a first driving rod (4) installed on the lower side of the drilling tool support body (1), and the upper side of the first driving rod (4) penetrates a locking block (5), the inner side of the first driving rod (4) is connected with a mounting block (6), and the outer side of the mounting block (6) is connected with a guide rod (7); The first driving rod (4) is relatively rotatably connected with the drilling tool support body (1), and the first driving rod (4) is relatively threadedly connected with the mounting block (6).

7. The high-stability variable-diameter rotary digging tool according to claim 6, characterized in that: The mounting block (6) is relatively slidably connected with the guide rod (7), and the guide rod (7) is relatively clampedly connected with the drilling rig connecting rod (3).

8. The high-stability variable-diameter rotary digging tool according to claim 1, characterized in that: The second guide block (17) is relatively slidably connected with the drilling tool support body (1), and the second guide block (17) is symmetrically arranged about the central axis of the connecting block (16).

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