A rock reamer cone mechanism

Abstract

The utility model discloses a rock reamer toothed wheel mechanism relates to toothed wheel mechanism technical field, including the connecting pipe, the outside of connecting pipe is provided with the water delivery pipe, the outside equidistance ring of water delivery pipe is provided with a plurality of shower nozzles, the top equidistance ring of connecting pipe is fixedly installed with three mounting plates, the one side of mounting plate is provided with the locating groove, the one side of mounting plate is penetrated and has the mounting shaft, the one end rotation of mounting shaft is installed with the conical runner, the outside equidistance of conical runner is provided with a plurality of abrasive head, the outside of mounting plate is provided with the dismantling mechanism. The utility model discloses the slide bar of dismantling mechanism, the design of clamping plate cooperation bolt and screw hole makes the dismantling of mounting shaft and the installation operation simple, need not special tool to be quick to complete the replacement of conical runner, and the equipment maintenance time is greatly reduced, and the construction efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of roller mechanism technology, specifically a roller mechanism for a rock reamer. Background Technology

[0002] Trenchless technology refers to techniques such as rock drilling and directional control to inspect, lay, repair, and replace various underground utility pipelines without excavating the surface. It has solved long-standing problems in urban underground pipeline construction and is an essential technology for completing urban underground engineering projects. The general construction sequence of trenchless technology is as follows: using a pipe-laying machine placed on the ground, a guide hole is first drilled along the designed trajectory of the pipeline to be laid. Then, a hole expander is used to expand and pull the hole back, continuously enlarging its diameter until it reaches a suitable size before laying the pipe. In the above process, the reaming quality and efficiency of the reamer directly affect the quality and progress of the engineering construction. The rock reamer roller cone is the core rock-breaking tool used in oil drilling and geological exploration to enlarge the wellbore diameter. It usually adopts a symmetrical layout of three or four roller cones. Its tooth surface is inlaid with tungsten carbide hard alloy teeth and has undergone carburizing and quenching treatment. It can shear and crush the well wall rock through a compound rolling-sliding motion under high pressure. The ball bearing system inside the roller cone housing runs continuously under the lubrication of drilling fluid. Combined with the nozzle design at the palm tip, it effectively removes rock cuttings, thereby achieving efficient and stable wellbore enlargement operations in hard formations such as granite and basalt.

[0003] In existing toothed cone mechanisms, the efficiency of hole enlargement is reduced by the wear of the toothed cones over a long period of time. Moreover, the toothed cones are often disassembled by welding or complex clamping structures, which require special tools and a lot of time. This makes it inconvenient to quickly replace the toothed cones, resulting in long equipment maintenance cycles and low construction efficiency. At the same time, the traditional structure lacks a precise positioning design, and the toothed cones are prone to installation misalignment after replacement, affecting the accuracy and uniformity of hole enlargement.

[0004] Based on this, a rock reamer toothed wheel mechanism is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this utility model is to provide a roller cone mechanism for a rock reamer, so as to solve the problem in the prior art that it is not convenient to quickly replace the roller cone, resulting in long equipment maintenance cycle and low construction efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A rock reamer roller mechanism includes a connecting pipe, a water supply pipe is provided outside the connecting pipe, and a plurality of nozzles are arranged in a ring at equal intervals outside the water supply pipe.

[0008] Three mounting plates are fixedly installed in a ring at equal intervals on the top of the connecting pipe. A positioning groove is opened on one side of the mounting plate. A mounting shaft passes through one side of the mounting plate. A conical wheel is rotatably mounted on one end of the mounting shaft. Multiple grinding heads are evenly arranged on the outside of the conical wheel. A disassembly mechanism is provided on the outside of the mounting plate.

[0009] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0010] In one alternative: multiple positioning blocks are equidistantly arranged on the outside of the other end of the mounting shaft, and the positioning blocks are adapted to the positioning groove.

[0011] In one alternative embodiment: the disassembly mechanism includes two slide rods, both of which are fixedly installed to the mounting plate, and clamps are slidably installed on the outside of the two slide rods, with limit plates fixedly installed at one end of each of the two slide rods.

[0012] In one alternative: a first mounting hole is provided on one side of the clamping plate, and a first bolt passes through the first mounting hole on one side of the clamping plate.

[0013] In one alternative: a first threaded hole is provided on one side of the mounting shaft, and the first bolt is threadedly connected to the first threaded hole.

[0014] In one alternative: two second mounting holes are symmetrically provided on the other side of the clamping plate, and two second bolts pass through the two second mounting holes on the other side of the clamping plate respectively.

[0015] In one alternative: a second threaded hole is provided on one side of each of the two slide rods, and the second bolt is threadedly connected to the second threaded hole.

[0016] In one alternative: both the conical roller and the grinding head are made of tungsten steel.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] 1. The design of the sliding rod, clamping plate, bolts, and threaded holes in the disassembly mechanism of this utility model makes the disassembly and installation of the mounting shaft simple. The conical wheel can be replaced quickly without special tools, which greatly reduces equipment maintenance time and improves construction efficiency.

[0019] 2. The conical roller and grinding head of this utility model are made of tungsten steel, which has high hardness and strong wear resistance, and can efficiently cut rocks and extend service life; the three mounting plates drive the conical roller to be distributed in a ring, which can realize all-round hole enlargement of rocks and improve hole enlargement efficiency and uniformity.

[0020] 3. The water supply pipe and nozzle of this utility model can spray water in real time during the hole expansion process, which can effectively reduce the friction temperature between the grinding head and the rock and avoid the grinding head wear caused by high temperature. At the same time, the water flow can discharge the rock debris generated by cutting in time, preventing the rock debris from accumulating and affecting the hole expansion progress. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0022] Figure 2 This is a schematic diagram of the clamping plate installation structure of this utility model.

[0023] Figure 3 A schematic diagram of the positioning groove of this utility model.

[0024] Figure 4 This is a schematic diagram of the slide bar installation structure of this utility model.

[0025] Figure reference numerals: 1. Connecting pipe; 2. Water supply pipe; 3. Nozzle; 4. Mounting plate; 5. Positioning groove; 6. Mounting shaft; 7. Positioning block; 8. Conical wheel; 9. Grinding head; 10. Slide rod; 11. Limiting plate; 12. Clamping plate; 13. First mounting hole; 14. First bolt; 15. First threaded hole; 16. Second mounting hole; 17. Second bolt; 18. Second threaded hole. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] In one embodiment, such as Figures 1-4 As shown, a rock reamer roller mechanism includes a connecting pipe 1, a water supply pipe 2 is provided outside the connecting pipe 1, and a plurality of nozzles 3 are arranged in a ring at equal intervals outside the water supply pipe 2.

[0028] Three mounting plates 4 are fixedly installed in a ring at equal intervals on the top of the connecting pipe 1. A positioning groove 5 is opened on one side of the mounting plate 4. A mounting shaft 6 passes through one side of the mounting plate 4. A conical wheel 8 is rotatably mounted on one end of the mounting shaft 6. Multiple grinding heads 9 are equally spaced on the outside of the conical wheel 8. A disassembly mechanism is provided on the outside of the mounting plate 4.

[0029] In this embodiment, the design of the sliding rod 10 and clamping plate 12 of the disassembly mechanism, along with the bolts and threaded holes, simplifies the disassembly and installation of the mounting shaft 6. The conical roller 8 can be quickly replaced without special tools, significantly reducing equipment maintenance time and improving construction efficiency. The conical roller 8 and grinding head 9 are made of tungsten steel, which has high hardness and wear resistance, enabling efficient rock cutting and extending service life. The three mounting plates 4 drive the conical roller 8 in a circular distribution, achieving omnidirectional hole enlargement of the rock, improving enlargement efficiency and uniformity. The water pipe 2 and nozzle 3 allow for real-time water spraying during the hole enlargement process, effectively reducing the friction temperature between the grinding head 9 and the rock, preventing accelerated wear of the grinding head 9 due to high temperatures. Simultaneously, the water flow can promptly discharge the rock debris generated during cutting, preventing rock debris accumulation from affecting the hole enlargement progress.

[0030] In one embodiment, such as Figure 1 and Figure 2 As shown, multiple positioning blocks 7 are equidistantly arranged on the other end of the mounting shaft 6, and the positioning blocks 7 are compatible with the positioning groove 5. The conical wheel 8 and the grinding head 9 are both made of tungsten steel. In use, the connecting pipe 1 drives the three mounting plates 4, which are equidistantly distributed in a ring at the top, to rotate synchronously. Each mounting plate 4 is mounted with a conical wheel 8 through the mounting shaft 6. When the connecting pipe 1 drives the mounting plate 4 to rotate (revolution), the conical wheel 8 rotates around its own mounting shaft 6 under the reaction force of the rock (rotation). The tungsten steel grinding head 9, which is equidistantly arranged on its outside, forms a rolling cut on the rock to achieve hole enlargement. At the same time, the water supply pipe 2 outside the connecting pipe 1 sprays water into the hole enlargement area through multiple nozzles 3, which are equidistantly arranged in a ring, to achieve cooling and slag removal.

[0031] In one embodiment, such as Figure 2 and Figure 4As shown, the disassembly mechanism includes two slide rods 10, both of which are fixedly installed on the mounting plate 4. Clamping plates 12 are slidably mounted on the outside of the two slide rods 10. Limiting plates 11 are fixedly installed at one end of each slide rod 10. A first mounting hole 13 is provided on one side of the clamping plate 12, through which a first bolt 14 passes. A first threaded hole 15 is provided on one side of the mounting shaft 6, and the first bolt 14 is threaded into the first threaded hole 15. Two second mounting holes 16 are symmetrically provided on the other side of the clamping plate 12, through which two second bolts 17 pass. Each of the two slide rods 10 has a second threaded hole 18 on one side. The second bolt 17 is threadedly connected to the second threaded hole 18. If the conical wheel 8 needs to be disassembled or replaced, first loosen the first bolt 14 on one side of the clamping plate 12 (to separate it from the first threaded hole 15 of the mounting shaft 6), then loosen the two second bolts 17 on the other side of the clamping plate 12 (to separate them from the second threaded hole 18 of the slide rod 10), and then slide the clamping plate 12 along the slide rod 10 to remove the mounting shaft 6 from the mounting plate 4, thereby completing the disassembly of the conical wheel 8. During installation, align and engage the positioning block 7 on the other end of the mounting shaft 6 with the positioning groove 5 on one side of the mounting plate 4, and then reverse the above steps to complete the assembly.

[0032] The above embodiment discloses a rock reamer roller mechanism, wherein, in use, the connecting pipe 1 drives three mounting plates 4, which are equidistantly distributed in a ring at the top, to rotate synchronously. Each mounting plate 4 is rotatably mounted with a conical wheel 8 via a mounting shaft 6. When the connecting pipe 1 drives the mounting plate 4 to rotate (revolution), the conical wheel 8 rotates around its own mounting shaft 6 under the reaction force of the rock (rotation), and forms rolling cuts on the rock through tungsten steel grinding heads 9 arranged at equal intervals outside, thereby achieving hole enlargement. At the same time, the water supply pipe 2 outside the connecting pipe 1 sprays water into the hole enlargement area through multiple nozzles 3 arranged at equal intervals in a ring, thereby achieving cooling and slag removal.

[0033] If the conical wheel 8 needs to be disassembled or replaced, the disassembly mechanism can be operated: first loosen the first bolt 14 on one side of the clamping plate 12 (to separate it from the first threaded hole 15 of the mounting shaft 6), then loosen the two second bolts 17 on the other side of the clamping plate 12 (to separate it from the second threaded hole 18 of the slide rod 10), and then slide the clamping plate 12 along the slide rod 10 to remove the mounting shaft 6 from the mounting plate 4, thereby completing the disassembly of the conical wheel 8; during installation, align and engage the positioning block 7 on the other end of the mounting shaft 6 with the positioning groove 5 on one side of the mounting plate 4, and then reverse the above steps to complete the assembly.

[0034] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A rock reamer roller mechanism, comprising a connecting pipe (1), a water supply pipe (2) provided outside the connecting pipe (1), and a plurality of nozzles (3) arranged in a ring at equal intervals outside the water supply pipe (2); Its features are, Three mounting plates (4) are fixedly installed in a ring at equal intervals on the top of the connecting pipe (1). A positioning groove (5) is provided on one side of the mounting plate (4). A mounting shaft (6) passes through one side of the mounting plate (4). A conical wheel (8) is rotatably mounted on one end of the mounting shaft (6). Multiple grinding heads (9) are equidistantly arranged on the outside of the conical wheel (8). A disassembly mechanism is provided on the outside of the mounting plate (4).

2. The toothed wheel mechanism of a rock reamer according to claim 1, characterized in that, Multiple positioning blocks (7) are equidistantly arranged on the outside of the other end of the mounting shaft (6), and the positioning blocks (7) are adapted to the positioning groove (5).

3. The toothed wheel mechanism of a rock reamer according to claim 1, characterized in that, The disassembly mechanism includes two slide rods (10), both slide rods (10) are fixedly installed on the mounting plate (4), and clamping plates (12) are slidably installed on the outside of the two slide rods (10). Limiting plates (11) are fixedly installed on one end of each of the two slide rods (10).

4. The toothed wheel mechanism of a rock reamer according to claim 3, characterized in that, A first mounting hole (13) is provided on one side of the clamping plate (12), and a first bolt (14) passes through the first mounting hole (13) on one side of the clamping plate (12).

5. The toothed wheel mechanism of a rock reamer according to claim 4, characterized in that, The mounting shaft (6) has a first threaded hole (15) on one side, and the first bolt (14) is threadedly connected to the first threaded hole (15).

6. The toothed wheel mechanism of a rock reamer according to claim 5, characterized in that, Two second mounting holes (16) are symmetrically provided on the other side of the clamping plate (12), and two second bolts (17) pass through the two second mounting holes (16) respectively on the other side of the clamping plate (12).

7. The toothed wheel mechanism of a rock reamer according to claim 6, characterized in that, Each of the two slide rods (10) has a second threaded hole (18) on one side, and the second bolt (17) is threadedly connected to the second threaded hole (18).

8. The toothed wheel mechanism of a rock reamer according to claim 1, characterized in that, Both the conical roller (8) and the grinding head (9) are made of tungsten steel.

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