Combined assembly type spiral reamer

Abstract

The utility model discloses a combination assembly type spiral reamer relates to spiral reamer technical field. A combination assembly type spiral reamer, including mounting frame and support frame, support frame fixedly connected at the top of mounting frame, the inside fixed connection of mounting frame has the transport case, connects sealed structure, and connects sealed structure to be located on the transport case, and connects sealed structure and includes drive motor, two rotary shafts, two spiral knives, two lifting frames and calibration shaft, and calibration shaft rotates the inside mounting of transport case through two lifting frames, and the interference fit of sealing ring and sealing groove forms the inner sealed barrier, and the outer sealed pad of combination sealed cover and sealed ring thread pressure tight, effectively prevent the granular medium such as mud, sandstone and so on from invading the connecting gap of rotary shaft and calibration shaft, avoid the transmission pair dry friction problem caused by the sealing loss, avoid the abnormal wear and tear of equipment caused by the invasion of impurities, further improve the service life of equipment.

Description

Technical Field

[0001] This utility model relates to the field of spiral reamer technology, and in particular to a combined assembly spiral reamer. Background Technology

[0002] Spiral cutterheads for environmental dredging of rivers and lakes are key equipment in environmental dredging projects. As the core excavation component, the performance and reliability of spiral cutterheads directly affect the efficiency and quality of dredging operations as well as the degree of impact on the surrounding ecological environment. Power transmission is achieved by connecting to the calibration shaft via a flange.

[0003] Traditional assembly methods lack an effective sealing structure at the connection between the auger and the drive shaft. During the dredging of rivers and lakes, the auger needs to penetrate deep into the mud layer at the bottom of the water for excavation. If the connection is not sealed tightly, assembly gaps are very likely to occur, causing mud, sand and other particulate media to invade the connection part, resulting in dry friction of the transmission pair, aggravating equipment wear, and thus shortening the service life of the equipment. Therefore, we propose a combined assembly type auger. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a combined assembly type spiral reamer. This can solve the problem that the traditional assembly method lacks an effective sealing structure at the connection between the spiral reamer and the drive shaft. During the dredging of rivers and lakes, the reamer needs to go deep into the mud layer at the bottom of the water for excavation. If the connection is not sealed tightly, assembly gaps are very likely to occur, causing mud, sand and other particulate media to invade the connection part, causing dry friction of the transmission pair, aggravating equipment wear, and thus shortening the service life of the equipment.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a combined assembled spiral reamer, comprising:

[0006] The mounting frame and the support frame are fixedly connected to the top of the mounting frame, and the conveyor box is fixedly connected inside the mounting frame.

[0007] A connecting sealing structure is located on the conveyor box;

[0008] The connecting sealing structure includes a drive motor, two rotating shafts, two spiral cutters, two lifting frames, and a calibration shaft. The calibration shaft is rotatably mounted inside the conveyor box via the two lifting frames. Both rotating shafts are fixedly mounted at both ends of the calibration shaft via flanges. The ends of the two rotating shafts furthest from the calibration shaft are rotatably connected to the interior of the conveyor box. Both spiral cutters are fixedly wound around the outer surface of the corresponding rotating shaft. The drive motor is fixedly mounted on one side of the mounting frame. The output end of the drive motor rotatably extends into the interior of the conveyor box and is fixedly connected to the corresponding rotating shaft. Sealing grooves are provided on both sides of the calibration shaft.

[0009] Preferably, the connection sealing structure further includes two sealing covers, two sealing rings, and two sealing rings. The two sealing rings are fixedly connected to the end of the corresponding rotating shaft near the calibration shaft. The two sealing rings are slidably connected to the inside of the corresponding sealing groove. The two sealing covers are slidably sleeved on the outer surface of the calibration shaft. The two sealing rings are slidably sleeved on the outer surface of the rotating shaft. The inside of the two sealing rings and the two sealing covers is fixedly connected with a sealing gasket.

[0010] Preferably, both sealing covers have internal threaded grooves inside, and both sealing rings have external threaded grooves on their outer surfaces that are threaded to the inside of the sealing cover. Both sealing rings are threaded to the inside of the corresponding sealing cover.

[0011] Preferably, all four sealing gaskets are made of rubber, and the four sealing gaskets are respectively interference-fitted with the outer surfaces of the calibration shaft and the two rotating shafts.

[0012] Preferably, both sides of the calibration shaft are provided with docking positioning grooves, and the ends of the two rotating shafts near the calibration shaft are fixedly connected with docking positioning blocks, and the two docking positioning blocks are slidably connected to the interior of the corresponding docking positioning grooves.

[0013] Preferably, a sealing box is bolted to the side of the mounting bracket closest to the drive motor, and the drive motor is located inside the sealing box.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. This assembled spiral reamer forms an internal sealing barrier through the interference fit between the sealing ring and the sealing groove, and the outer sealing gasket is pressed tightly by the sealing cover and the sealing ring. This effectively prevents particulate media such as mud and sand from entering the connection gap between the rotating shaft and the calibration shaft, avoiding the problem of dry friction of the transmission pair caused by the lack of sealing, and avoiding abnormal wear of the equipment caused by the intrusion of impurities, thus further improving the service life of the equipment. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic cross-sectional view of the conveyor box of this utility model;

[0019] Figure 3 This is a schematic diagram of the calibration shaft structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the docking positioning block structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the sealing cover structure of this utility model.

[0022] Reference numerals in the attached drawings: 1. Mounting frame; 2. Conveying box; 3. Sealing box; 4. Support frame; 5. Drive motor; 6. Lifting frame; 7. Rotating shaft; 8. Calibration shaft; 9. Spiral cutter; 10. Sealing cover; 11. Docking positioning groove; 12. Sealing groove; 13. Docking positioning block; 14. Sealing ring; 15. Sealing ring; 16. Sealing gasket. Detailed Implementation

[0023] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0024] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0026] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0027] Please see Figure 1-5 This utility model provides a technical solution: a combined assembled spiral reamer, comprising:

[0028] Mounting frame 1 and support frame 4, with support frame 4 fixedly connected to the top of mounting frame 1, and conveyor box 2 fixedly connected inside mounting frame 1;

[0029] A connecting sealing structure is located on the conveyor box 2;

[0030] The connecting sealing structure includes a drive motor 5, two rotating shafts 7, two spiral cutters 9, two lifting frames 6, and a calibration shaft 8. The calibration shaft 8 is rotatably mounted inside the conveyor box 2 via the two lifting frames 6. Both rotating shafts 7 are fixedly mounted at both ends of the calibration shaft 8 via flanges. The ends of the two rotating shafts 7 away from the calibration shaft 8 are rotatably connected to the inside of the conveyor box 2. Both spiral cutters 9 are fixedly wound around the outer surface of the corresponding rotating shaft 7. The drive motor 5 is fixedly mounted on one side of the mounting frame 1. The output end of the drive motor 5 extends rotatably into the inside of the conveyor box 2 and is fixedly connected to the corresponding rotating shaft 7. Sealing grooves 12 are provided on both sides of the calibration shaft 8. A sealing box 3 is bolted to the side of the mounting frame 1 closest to the drive motor 5. The drive motor 5 is located inside the sealing box 3.

[0031] The connecting sealing structure also includes two sealing covers 10, two sealing rings 15 and two sealing rings 14. The two sealing rings 14 are fixedly connected to the end of the corresponding rotating shaft 7 near the calibration shaft 8. The two sealing rings 14 are slidably connected to the inside of the corresponding sealing groove 12. The two sealing covers 10 are slidably sleeved on the outer surface of the calibration shaft 8. The two sealing rings 15 are slidably sleeved on the outer surface of the rotating shaft 7. The two sealing rings 15 and the two sealing covers 10 are all fixedly connected with sealing gaskets 16 inside.

[0032] Both sealing covers 10 have internal threaded grooves inside, and both sealing rings 15 have external threaded grooves on their outer surfaces that are threaded to the inside of the sealing cover 10. Both sealing rings 15 are threaded to the inside of the corresponding sealing cover 10.

[0033] All four sealing gaskets 16 are made of rubber. The four sealing gaskets 16 are press-fitted with the outer surfaces of the calibration shaft 8 and the two rotating shafts 7 respectively. The calibration shaft 8 has docking positioning grooves 11 on both sides. The two rotating shafts 7 are fixedly connected to the docking positioning blocks 13 at the ends near the calibration shaft 8. The two docking positioning blocks 13 are slidably connected to the interior of the corresponding docking positioning grooves 11.

[0034] Furthermore, when using this device, after the drive motor 5 starts, it drives the corresponding rotating shaft 7 to rotate through the output end. The rotating shaft 7 drives the other rotating shaft 7 to achieve synchronous transmission through the calibration shaft 8. The two rotating shafts 7 drive the spiral cutter 9 to rotate at high speed to cut and transport the mud and sand. The cooperation between the docking positioning block 13 and the docking positioning groove 11 ensures the coaxiality of the rotating shaft 7 and the calibration shaft 8, avoiding vibration caused by eccentricity.

[0035] The sealing ring 14 is embedded in the sealing groove 12 of the calibration shaft 8, forming a second inner sealing barrier through an interference fit, preventing the medium from leaking from the axial gap between the rotating shaft 7 and the calibration shaft 8. The sealing cover 10 is connected to the sealing ring 15 through the internal thread. Rotating the sealing cover 10 can axially press the sealing gasket 16, making it fit tightly against the surfaces of the rotating shaft 7 and the calibration shaft 8. The rubber material of the sealing gasket 16 further fills the radial gap, forming the first outer seal. When the equipment vibrates or wears and causes the gap to increase, the elastic deformation of the sealing gasket 16 can automatically compensate for the gap and maintain the sealing effect. The threaded connection between the sealing cover 10 and the sealing ring 15 allows for periodic adjustment of the clamping force to ensure long-term sealing reliability.

[0036] The rotating shaft 7 can be quickly disassembled and assembled with the calibration shaft 8 via a flange. The sealing box 3 protects the drive motor 5 from external media corrosion. A sealing rubber sheet is provided at the contact point between the sealing box 3 and the mounting bracket. The bolt mounting structure facilitates motor maintenance.

[0037] The interference fit between the sealing ring 14 and the sealing groove 12 forms an inner sealing barrier. Combined with the outer sealing gasket 16, which is threadedly pressed between the sealing cover 10 and the sealing ring 15, it effectively prevents particulate media such as mud and sand from entering the connection gap between the rotating shaft 7 and the calibration shaft 8. This avoids the problem of dry friction of the transmission pair caused by the lack of sealing, and prevents abnormal wear of the equipment caused by the intrusion of impurities, thereby further improving the service life of the equipment.

[0038] Structural Description: Mounting Frame 1: Serves as the supporting foundation for the entire device, used to fix and support other components, ensuring the stability and integrity of the device;

[0039] Conveying box 2: Fixedly connected inside the mounting frame 1, providing space for the rotation of the spiral cutter 9 and the conveying of mud and sand;

[0040] Sealing box 3: Bolts are installed on the side of the mounting bracket 1 near the drive motor 5 to protect the drive motor 5 from external media corrosion. At the same time, a sealing rubber sheet is provided at the contact point between it and the mounting bracket to enhance the sealing performance.

[0041] Support frame 4: Fixedly connected to the top of mounting frame 1, it may be used to provide additional support or fixing points to enhance the overall stability of the device;

[0042] Drive motor 5: Fixedly installed on one side of the mounting bracket 1, it provides power to the entire device and drives the rotation of the rotating shaft 7 and the spiral cutter 9;

[0043] Lifting frame 6: Used to rotatably mount the calibration shaft 8 inside the conveyor box 2, providing the necessary support and positioning;

[0044] Rotating shaft 7: It is fixedly installed at both ends of the calibration shaft 8 via flanges and rotatably connected inside the conveyor box 2. It is used to transmit the power of the drive motor 5 to drive the spiral cutter 9 to rotate.

[0045] Calibration shaft 8: As a connecting component between two rotating shafts 7, it ensures that they rotate synchronously. At the same time, it has sealing grooves 12 and docking positioning grooves 11 on both sides for sealing and positioning with the rotating shafts 7.

[0046] Spiral cutter 9: It is fixedly wound on the outer surface of the corresponding rotating shaft 7 and rotates with the rotating shaft 7. It is used to cut and transport mud and sand.

[0047] Sealing cover 10: It slides on the outer surface of the calibration shaft 8 and is connected to the external thread of the sealing ring 15 through the internal thread. It is used to press the sealing gasket 16 to form an external sealing barrier.

[0048] Docking and positioning grooves 11: are formed on both sides of the calibration shaft 8 and are slidably connected to the docking and positioning blocks 13 on the rotating shaft 7 to ensure the coaxiality of the rotating shaft 7 and the calibration shaft 8;

[0049] Sealing groove 12: It is formed on both sides of the calibration shaft 8 and is slidably connected with the sealing ring 14 to form an inner sealing barrier to prevent media leakage;

[0050] Docking positioning block 13: It is fixedly connected to one end of the rotating shaft 7 near the calibration shaft 8 and slidably connected to the docking positioning groove 11. It is used to position the relative position of the rotating shaft 7 and the calibration shaft 8.

[0051] Sealing ring 14: It is fixedly connected to one end of the rotating shaft 7 near the calibration shaft 8 and is slidably connected to the sealing groove 12. It forms an internal seal through interference fit to prevent the medium from leaking from the axial gap between the rotating shaft 7 and the calibration shaft 8.

[0052] Sealing ring 15: It is slidably sleeved on the outer surface of the rotating shaft 7 and threadedly connected to the sealing cover 10. It is used to support and fix the sealing gasket 16, and together with the sealing cover 10, it forms an outer sealing barrier.

[0053] Sealing gasket 16: It is fixedly connected inside the sealing ring 15 and the sealing cover 10, and is interference-fitted with the outer surface of the calibration shaft 8 and the rotating shaft 7. It is used to fill the radial gap and form a seal. At the same time, its rubber material has elastic deformation ability, which can automatically compensate for the increase in gap caused by equipment vibration or wear, and maintain the sealing effect.

[0054] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A modular assembly spiral reamer, characterized in that, include: Mounting frame (1) and support frame (4), the support frame (4) is fixedly connected to the top of mounting frame (1), and a conveyor box (2) is fixedly connected inside the mounting frame (1); A connecting sealing structure is located on the conveyor box (2); The connecting sealing structure includes a drive motor (5), two rotating shafts (7), two spiral cutters (9), two lifting frames (6) and a calibration shaft (8). The calibration shaft (8) is rotatably installed inside the conveyor box (2) via the two lifting frames (6). Both rotating shafts (7) are fixedly installed at both ends of the calibration shaft (8) via flanges. Among them, the ends of the two rotating shafts (7) away from the calibration shaft (8) are rotatably connected to the inside of the conveyor box (2), the two spiral cutters (9) are fixedly wound on the outer surface of the corresponding rotating shaft (7), the drive motor (5) is fixedly installed on one side of the mounting bracket (1), the output end of the drive motor (5) rotates into the inside of the conveyor box (2) and is fixedly connected to the corresponding rotating shaft (7), and sealing grooves (12) are provided on both sides of the calibration shaft (8).

2. The combined assembly type spiral reamer according to claim 1, characterized in that: The connection sealing structure also includes two sealing covers (10), two sealing rings (15) and two sealing rings (14). The two sealing rings (14) are fixedly connected to one end of the corresponding rotating shaft (7) near the calibration shaft (8), and the two sealing rings (14) are slidably connected to the inside of the corresponding sealing groove (12). Among them, the two sealing covers (10) are slidably sleeved on the outer surface of the calibration shaft (8), the two sealing rings (15) are slidably sleeved on the outer surface of the rotating shaft (7), and the two sealing rings (15) and the two sealing covers (10) are all fixedly connected with sealing gaskets (16).

3. The combined assembly type spiral reamer according to claim 2, characterized in that: Both of the sealing covers (10) have internal threaded grooves inside, and both of the sealing rings (15) have external threaded grooves on their outer surfaces that are threaded to the inside of the sealing cover (10). Both sealing rings (15) are threaded to the inside of the corresponding sealing cover (10).

4. The combined assembly type spiral reamer according to claim 2, characterized in that: All four sealing gaskets (16) are made of rubber and are respectively press-fitted to the outer surfaces of the calibration shaft (8) and the two rotating shafts (7).

5. A combined assembly type spiral reamer according to claim 1, characterized in that: Both sides of the calibration shaft (8) are provided with docking positioning grooves (11), and the two rotating shafts (7) are fixedly connected to the end of the calibration shaft (8) with docking positioning blocks (13). The two docking positioning blocks (13) are slidably connected to the interior of the corresponding docking positioning grooves (11).

6. A combined assembly type spiral reamer according to claim 1, characterized in that: The mounting bracket (1) has a sealing box (3) bolted on the side near the drive motor (5), and the drive motor (5) is located inside the sealing box (3).

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