High-toughness large-drift-diameter integral twist drill

Abstract

The utility model relates to the technical field of twist drills, and discloses a high-toughness large-drift-diameter integral twist drill which comprises a twist drill body, one end of the twist drill body is connected with a drill bit through a first positioning assembly, the outer wall of the twist drill body is connected with a lock shell, and the other end of the twist drill body is connected with a connecting rod through a second positioning assembly. A connecting ring is fixedly connected to the outer wall of one end of the connecting rod, a fixing ring is fixedly connected to the outer wall of the other end of the spiral drill body, the fixing ring and the connecting ring are connected through a limiting assembly, and a first clamping sleeve is arranged on the top side of the outer wall of the connecting ring and the top side of the outer wall of the fixing ring. According to the spiral drill, the spiral drill body and the connecting rod are connected in multiple reinforcing modes such as fixing of the clamping blocks and the clamping grooves, fixing of the limiting rings and the limiting grooves and fixing of the bolts, and accurate attachment is guaranteed through the positioning inserting shafts. The structure enables the connection to be stable. Meanwhile, the flange plate, the positioning inserting shaft, the clamping sleeve and the like enable installation and drill bit replacement to be simple and fast, and time and labor cost are saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to spiral drill technical field especially relates to a high toughness big drift whole type spiral drill. BACKGROUND

[0002] In the engineering field such as building construction, geological exploration, mining, spiral drill is used as the core drilling equipment, because of its efficient drilling capacity and wide applicability, is applied in the drilling operation under various complex geological conditions in large quantities. With the engineering scale expanding and the operation requirement improving day by day, higher standard is put forward to the performance and reliability of spiral drill, especially in high load, long time continuous operation scene, the structural strength and operation convenience of spiral drill directly influence engineering progress and construction safety.

[0003] The existing spiral drill equipment is connected in a single bolt fixing or buckle connection in the structure design of screw drill body and connecting rod. In the actual operation process, because high toughness big drift spiral drill generates greater torque, axial force and vibration when drilling, single connection mode is difficult to effectively disperse and bear these complex forces, and is easy to cause the loosening, deformation and even shedding of the connecting part, and further cause equipment failure, and seriously, it can also bring safety hazards. In addition, the structure design of traditional spiral drill is not reasonable in the installation and drill bit replacement link, and often needs to use various tools to carry out complex dismounting operation, which not only consumes a lot of time and increases labor cost, but also may affect the overall performance of the equipment due to installation error, and for this, the present application proposes a high toughness big drift whole type spiral drill for solving the technical problems. UTILITARIAN CONTENT

[0004] The utility model discloses a high toughness big drift whole type spiral drill, and the connection of screw drill body and connecting rod adopts various reinforcing modes such as block and slot, limiting ring and limiting slot and bolt fixing, and positioning axle ensures accurate fitting. This structure makes the connection stable, can bear various forces in work, reduces failure and hidden danger. At the same time, the design of flange plate, positioning axle, sleeve etc. makes installation and drill bit replacement simple and fast, saves time and labor cost.

[0005] To realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0006] The utility model provides a high tenacity big drift diameter integral spiral drill, including threaded drill body, the one end of threaded drill body is connected with drill bit through positioning assembly no.

[0007] Further, the positioning assembly one includes the positioning groove one of setting in threaded drill body one end, the outer wall of drill bit is fixedly connected with positioning plug axis one, positioning plug axis one sets in the inside of positioning groove one, the inner wall of lock shell is screwed on the outer wall of drill bit.

[0008] Further, the positioning assembly two includes the positioning groove two of setting in connecting rod one end, the other end of threaded drill body is fixedly connected with positioning plug axis two, positioning plug axis two sets in the inside of positioning groove two.

[0009] Further, the limiting assembly includes the clamping block fixedly connected in the outer wall of connecting ring, the outer wall of fixed ring is equipped with the clamping groove, the clamping block sets in the inside of clamping groove.

[0010] Further, the outer wall of clamping block is equipped with the limiting slot, the outer wall of clamping sleeve one and clamping sleeve two is fixedly connected with limiting ring, and the limiting ring sets in the inside of limiting slot.

[0011] Further, the outer wall of connecting rod is provided with flange plate for the connection of driving source.

[0012] Further, clamping sleeve one and clamping sleeve two are connected through bolt.

[0013] The utility model has the following beneficial effects:

[0014] 1、 the utility model discloses a threaded drill body and connecting rod's connecting place adopt clamping block and clamping groove, limiting ring and limiting slot and bolt fixed etc. Variety reinforcing mode combination. Positioning plug axis ensures the accurate fit of connecting ring and fixed ring, clamping block inserts clamping groove and provides primary positioning and fixed, limiting ring embeds limiting slot and further restricts the relative movement of component, finally through bolt and fixes clamping sleeve, and this multiple reinforcing structure makes the connection more stable, can effectively bear the various force of high tenacity big drift diameter spiral drill in the working process, reduces the equipment failure and security risk due to the loosening of connection.

[0015] 2、The utility model discloses, through the flange, positioning axle, the clever design of such as sleeve structure, make the installation of threaded drill body and connecting rod and the replacement process of drill bit simple and fast, greatly save time and manpower cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 A high toughness large drift diameter integral spiral drill is provided for the utility model, and a perspective view is shown in the drawing.

[0017] Fig. 2 A drill bit structure schematic view of a high toughness large drift diameter integral spiral drill is provided for the utility model.

[0018] Fig. 3 A connecting rod structure schematic view of a high toughness large drift diameter integral spiral drill is provided for the utility model.

[0019] LEGEND:

[0020] 1, threaded drill body;2, lock shell;3, drill bit;4, connecting rod;5, flange;6, sleeve one;7, sleeve two;8, clamping block;9, positioning axle one;10, positioning groove one;11, positioning axle two;12, positioning groove two;13, fixed ring;14, clamping groove;15, connecting ring;16, limit ring;17, limit groove. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the scope of protection of the utility model.

[0022] REFERENCE Figs. 1-3The utility model provides an embodiment: a kind of high toughness large drift whole spiral drill, including threaded drill body 1, the positioning slot one 10 being set in threaded drill body 1 one end, the outer wall of drill bit 3 is fixedly connected with positioning axle one 9, positioning axle one 9 is arranged in the inside of positioning slot one 10, the inner wall of lock shell 2 is connected in the outer wall of drill bit 3, the outer wall of threaded drill body 1 is connected with lock shell 2, positioning slot two 12 being set in connecting rod 4 one end, the other end of threaded drill body 1 is fixedly connected with positioning axle two 11, positioning axle two 11 is arranged in the inside of positioning slot two 12, the outer wall of one end of connecting rod 4 is fixedly connected with connecting ring 15, the other end of threaded drill body 1 outer wall is fixedly connected with fixed ring 13, clamping block 8 is fixedly connected in the outer wall of connecting ring 15, the outer wall of fixed ring 13 is set with clamping groove 14, clamping block 8 is arranged in the inside of clamping groove 14, the outer wall of clamping block 8 is set with limiting slot 17, the outer wall of clamping sleeve one 6 and clamping sleeve two 7 is fixedly connected with limiting ring 16, limiting ring 16 is arranged in the inside of limiting slot 17, the outer wall top side of connecting ring 15 and fixed ring 13 is provided with clamping sleeve one 6, the bottom side of clamping sleeve one 6 is provided with clamping sleeve two 7, one side of clamping sleeve one 6 and clamping sleeve two 7 is fixedly connected with limiting ring 16;

[0023] Specifically, when installing high toughness large drift spiral drill, first, the flange 5 is used to install the connecting rod 4 on the driving source. Then, the positioning axle two 11 is inserted into the inner wall of the positioning slot two 12, and the connecting ring 15 is tightly attached to the fixed ring 13. At this time, the clamping block 8 is accurately inserted into the clamping groove 14 on the outer wall of the fixed ring 13. Subsequently, the clamping sleeve one 6 and the clamping sleeve two 7 are clamped on the outer wall of the connecting ring 15 and the fixed ring 13 respectively, and the limiting ring 16 on the outer wall of the clamping sleeve one 6 and the clamping sleeve two 7 is embedded into the limiting slot 17 on the outer wall of the clamping block 8, so as to further reinforce the connection between the connecting rod 4 and the threaded drill body 1. Finally, the clamping sleeve one 6 and the clamping sleeve two 7 are fixed together by bolts, and the installation of the threaded drill body 1 and the connecting rod 4 is completed. When the drill bit 3 needs to be replaced due to damage, the lock shell 2 is reversed in the direction opposite to the working rotation direction of the threaded drill body 1, so that the lock shell 2 is separated from the outer wall of the drill bit 3. Then, the drill bit 3 and the positioning axle one 9 are removed from one end of the threaded drill body 1. Next, the new drill bit 3 is inserted into the positioning slot one 10 at one end of the threaded drill body 1 through the positioning axle one 9, so that the threaded drill body 1 and the drill bit 3 are tightly attached. Finally, the positioning slot one 10 is rotated, so that the threaded drill body 1 and the drill bit 3 are fixed together, thereby realizing the replacement of the drill bit 3.

[0024] Reference Figs. 1-3 The outer wall of the connecting rod 4 is provided with the flange 5 for connecting the driving source, and the clamping sleeve one 6 and the clamping sleeve two 7 are connected by bolts;

[0025] Specifically, the outer wall of the connecting rod 4 is provided with a flange plate 5, and reliable connection with the driving source is realized through the flange plate 5, thereby providing stable power input for the driving of the entire screw drill. During installation, the sleeve one 6 and the sleeve two 7 are respectively clamped on the outer walls of the connecting ring 15 and the fixed ring 13, and the two are tightly connected through bolts. This connection mode not only ensures the firm connection between the connecting rod 4 and the threaded drill body 1, but also further enhances the stability of the connection through the tightening effect of the bolts. When the driving source drives the connecting rod 4 to rotate through the flange plate 5, the connecting rod 4 can stably transmit power to the threaded drill body 1, so that it can work normally. At the same time, during the replacement of the drill bit 3, this connection structure is also convenient to disassemble and reinstall, thereby ensuring the smooth operation of the replacement operation.

[0026] Working principle: when it is necessary to install a high-toughness large-diameter screw drill, first, the connecting rod 4 is installed on the required driving source through the flange plate 5, then the positioning shaft two 11 is inserted into the inner wall of the positioning groove two 12, so that the connecting ring 15 and the fixed ring 13 are attached together, at this time, the clamping block 8 will be inserted into the clamping groove 14 inside the outer wall of the fixed ring 13, then the sleeve one 6 and the sleeve two 7 are clamped on the outer walls of the connecting ring 15 and the fixed ring 13, the limiting ring 16 on the outer wall of the sleeve one 6 and the sleeve two 7 is clamped in the limiting groove 17 on the outer wall of the clamping block 8, thereby further reinforcing the connection between the connecting rod 4 and the threaded drill body 1, then the sleeve one 6 and the sleeve two 7 are fixed through bolts, thereby achieving the installation between the threaded drill body 1 and the connecting rod 4. When the drill bit 3 needs to be replaced due to damage, the lock shell 2 is only needed to be reversed to keep the opposite direction of rotation with the threaded drill body 1, so that the lock shell 2 and the outer wall of the drill bit 3 are separated, then the drill bit 3 and the positioning shaft one 9 are disassembled from one end of the threaded drill body 1, then the new drill bit 3 is inserted into the positioning groove one 10 at one end of the threaded drill body 1 through the positioning shaft one 9, so that the threaded drill body 1 and the drill bit 3 are attached together, then the threaded drill body 1 and the drill bit 3 are fixed together through the rotation of the positioning groove one 10, thereby achieving the replacement of the drill bit 3.

[0027] Finally, it should be noted that the above description is only a preferred embodiment of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A high-toughness, large-diameter, monolithic auger, characterized by, Including the threaded drill body (1), one end of the threaded drill body (1) is connected with a drill bit (3) through a positioning assembly one, the outer wall of the threaded drill body (1) is connected with a lock shell (2), the other end of the threaded drill body (1) is connected with a connecting rod (4) through a positioning assembly two, one end of the outer wall of the connecting rod (4) is fixedly connected with a connecting ring (15), the other end of the outer wall of the threaded drill body (1) is fixedly connected with a fixed ring (13), the fixed ring (13) and the connecting ring (15) are connected through a limiting assembly, the outer wall of the connecting ring (15) and the fixed ring (13) is provided with a sleeve one (6) on the top side, the bottom side of the sleeve one (6) is provided with a sleeve two (7), one side of the sleeve one (6) and the sleeve two (7) is fixedly connected with a limiting ring (16).

2. A high-toughness, large-diameter, monolithic auger according to claim 1, characterized in that: The positioning assembly one includes a positioning groove one (10) opened at one end of the threaded drill body (1), the outer wall of the drill bit (3) is fixedly connected with a positioning insert shaft one (9), the positioning insert shaft one (9) is arranged in the inside of the positioning groove one (10), the inner wall of the lock shell (2) is threadedly connected to the outer wall of the drill bit (3).

3. A high-toughness, large-diameter, monolithic auger according to claim 1, wherein: The positioning assembly two includes a positioning groove two (12) opened at one end of the connecting rod (4), the other end of the threaded drill body (1) is fixedly connected with a positioning insert shaft two (11), the positioning insert shaft two (11) is arranged in the inside of the positioning groove two (12).

4. A high-toughness, large-diameter, monolithic auger according to claim 1, wherein: The limiting assembly includes a clamping block (8) fixedly connected to the outer wall of the connecting ring (15), the outer wall of the fixed ring (13) is provided with a clamping groove (14), the clamping block (8) is arranged in the inside of the clamping groove (14).

5. A high-toughness, large-diameter, monolithic auger according to claim 4, wherein: The outer wall of the clamping block (8) is provided with a limiting groove (17), the outer wall of the sleeve one (6) and the sleeve two (7) is fixedly connected with a limiting ring (16), the limiting ring (16) is arranged in the inside of the limiting groove (17).

6. A high-toughness, large-diameter, monolithic auger according to claim 1, wherein: The outer wall of the connecting rod (4) is provided with a flange (5) for connecting the driving source.

7. A high-toughness, large-diameter, monolithic auger according to claim 1, wherein: The sleeve one (6) and the sleeve two (7) are connected through bolts.

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