Roller connecting structure of cutting machine

Abstract

The utility model provides a roller connecting structure of a cutting machine. The connecting structure comprises a bearing box, a connecting shaft, a pull rod and a roller. When the roller is mounted, the first stud of the pull rod penetrates through the mounting hole of one connecting shaft and the connecting hole of the roller and then is spirally connected with the threaded hole of the other connecting shaft, and then the nut is spirally connected with the second stud of the pull rod, so that the nut pushes the connecting shaft provided with the mounting hole to the connecting shaft provided with the threaded hole; and the cones of the two connecting shafts are gradually pressed into the conical holes in the two ends of the roller, so that the roller is clamped and fixed by the two connecting shafts. In the mounting mode, the cone is inserted into the conical hole to play a guiding role, so that the roller and the two connecting shafts are coaxial. In addition, when the roller is disassembled, the pull rod is unscrewed and pulled out, and then the roller can be disassembled. Therefore, the connecting structure is very convenient to assemble and disassemble the roller, and is favorable for improving the efficiency of mounting and maintaining the roller and replacing the rubber sleeve.

Description

Technical Field

[0001] The utility model relates to the field of roller structures, in particular to a roller connection structure of a cutting machine. Background Art

[0002] In stone processing, rough materials are generally cut by cutting machines. At present, the structure of the cutting machine usually includes a moving frame and a cutting rope (such as a diamond bead rope or a diamond wire), wherein the moving frame is provided with a plurality of rollers, and each roller is generally installed by fixing its two ends to the two bearing boxes corresponding to the moving frame, so as to limit the outer sleeve to rotate only. The cutting rope passes around each roller, and the cutting rope can be driven to rotate at a high speed by driving the roller to rotate, and then the moving frame moves to drive the high-speed cutting rope to move toward the rough material for cutting.

[0003] At the same time, in the prior art, in order to prevent the cutting rope from slipping relative to the roller, and to prevent the cutting rope and the outer sleeve from wearing each other and shortening their respective service lives, the surface of the roller is generally covered with a rubber sleeve, and the surface of the rubber sleeve has multiple rope grooves, and the cutting rope passes through the rope grooves to restrict the cutting rope from axially moving relative to the outer sleeve. At present, the rubber sleeve is integrally cast on the roller. As the equipment is used, the rubber sleeve will be worn. To replace it, the entire roller needs to be removed, and all the rubber sleeves on its surface need to be cleaned before the integral casting is performed.

[0004] However, to remove the roller, the two bearing boxes connected to it need to be removed, and then the two bearing boxes need to be installed. After installation, the concentricity of the two bearing boxes needs to be recalibrated to avoid the roller from tilting after installation. It can be seen that the cutting machine is very inconvenient when disassembling and installing the roller, which is convenient for the installation and maintenance of the roller. Summary of the invention

[0005] In view of the deficiencies raised in the above background technology, the utility model provides a roller connection structure of a cutting machine.

[0006] The utility model adopts the following technical solutions:

[0007] A roller connection structure of a cutting machine, characterized in that the connection structure comprises:

[0008] A bearing box, to which both ends of the moving frame of the cutting machine are fixed;

[0009] A connecting shaft, one end of which is provided with a cone with a gradually decreasing outer diameter, and the two bearing boxes are both provided with the connecting shafts, so that the cones of the two connecting shafts are both oriented toward the middle of the moving frame, and a mounting hole is provided through the axis line of one of the connecting shafts, and a threaded hole is provided on the end face of the cone of the other connecting shaft;

[0010] A pull rod, one end of which is provided with a first stud, the first stud is adapted to the threaded hole, and the other end of the pull rod is provided with a clamping portion with an enlarged outer diameter;

[0011] A roller, wherein a connecting hole is provided through the axis of the roller, and conical holes are provided on the end faces of both ends of the roller, and the diameter of the conical holes gradually decreases from the outside of the roller to the inside of the roller;

[0012] Wherein, the roller is arranged between the two connecting shafts, and the cones of the two connecting shafts are respectively adapted to be embedded in the conical holes at both ends of the roller, and the first stud of the pull rod passes through the mounting hole and the connecting hole and is adapted to be spirally connected with the threaded hole, and the clamping part presses the cones of the two connecting shafts toward the roller to clamp and fix the roller.

[0013] In a possible implementation, the connecting shaft is provided with a protruding limiting portion on the end surface of one end of the cone, and the roller is provided with a recessed limiting groove on the inner end surface of the conical hole; when the cone of the connecting shaft is inserted into the conical hole of the end cover, the limiting portion is adapted to be inserted into the limiting groove.

[0014] In a possible implementation, the other end of the pull rod opposite to the first stud is a second stud, and the second stud is adapted to be connected with a nut, which forms the clamping portion.

[0015] In a possible implementation, the roller includes an outer sleeve, an inner sleeve, a reinforcement ring and an end cover, the inner sleeve is arranged in the outer sleeve, and a plurality of reinforcement rings are fixedly connected between the outer sleeve and the inner sleeve, the axis of the inner sleeve passes through to form the connecting hole, the end covers are fixed at both ends of the outer sleeve, and the tapered holes are arranged on the end surfaces of the two end covers facing the outside of the outer sleeve.

[0016] In one possible implementation, the side wall of the outer sleeve is preset with a penetrating welding hole at a position corresponding to each of the reinforcement rings. After the reinforcement rings are arranged and fixed outside the inner sleeve, the inner sleeve and the reinforcement rings are inserted into the outer sleeve so that each of the reinforcement rings has a corresponding welding hole, and the side wall of the welding hole and the reinforcement ring are welded and fixed.

[0017] In a possible implementation, the roller is covered with a rubber sleeve, a plurality of rope grooves are distributed on the annular surface of the rubber sleeve along the extension direction of its axis, and the cutting rope passes around the rope grooves.

[0018] In a possible implementation manner, a hexagonal prism is provided at one end of the pull rod away from the first stud.

[0019] In a possible implementation, a protective cover is connected to the bearing box having the mounting hole, the protective cover is fixed to the end surface of the bearing box, and the protective cover covers the hexagonal prism at the end of the pull rod.

[0020] In a possible implementation, the movable frame fixes the roller motor, wherein one end of the connecting shaft away from the cone passes through the outside of the bearing box and is drivingly connected to the output shaft of the roller motor.

[0021] From the above description of the structure of the utility model, it can be seen that compared with the prior art, the utility model has the following advantages: the utility model passes through the first stud of the pull rod through the mounting hole of the connecting shaft and the connecting hole of the roller in sequence, and then corresponds to the threaded hole of the other connecting shaft, and rotates the pull rod to screw the first stud into the threaded hole, so that the pressing part of the pull rod pushes the connecting shaft with the mounting hole to the connecting shaft with the threaded hole, so that the cones of the two connecting shafts are close to each other and pressed toward the roller, and the cones of the two connecting shafts are gradually pressed into the tapered holes at both ends of the roller so that the two connecting shafts clamp and fix the roller, thereby limiting the roller to only rotate. And in this installation method, the cone inserted into the tapered hole can form a guiding effect, so that the roller is automatically coaxial with the two connecting shafts, and there is no need to re-calibrate the horizontality of the roller. In addition, when disassembling the roller, the pull rod can be loosened and pulled out to remove the roller. It can be seen that the connection structure of the utility model is very convenient for loading and unloading the roller, which is conducive to improving the efficiency of installation, maintenance and replacement of the rubber sleeve of the cutting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the mobile frame in the cutting machine.

[0023] Figure 2 for Figure 1 Schematic diagram of the enlarged three-dimensional structure at point A in the middle.

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of rollers connected at the upper and lower ends of one side of the mobile frame.

[0025] Figure 4 It is a schematic diagram of the cross-sectional structure of the roller connected between two bearing boxes.

[0026] Figure 5 for Figure 4 Schematic diagram of the enlarged three-dimensional structure at point B in the middle.

[0027] Figure 6 for Figure 4 Schematic diagram of the enlarged three-dimensional structure at point C in the middle.

[0028] Figure 7 It is a schematic diagram of the three-dimensional structure of the connecting shaft.

[0029] Figure 8 It is a schematic diagram of the three-dimensional structure of the pull rod.

[0030] Fig. 9 It is a schematic diagram of the cross-sectional structure of the roller.

[0031] Fig.10 It is a schematic diagram of the three-dimensional structure of the roller.

[0032] Fig.11 It is a schematic diagram of a three-dimensional structure in which multiple reinforcement rings are fixed outside the inner sleeve.

[0033] Fig.12 It is a schematic diagram of the three-dimensional structure of the outer sleeve. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in conjunction with the accompanying drawings.

[0035] In the present application, directional terms such as "upper" and "lower" are defined relative to the orientation of the components in the drawings. It should be understood that these directional terms are relative concepts. They are used for relative description and clarification, and they may change accordingly according to the change of the orientation of the components in the drawings.

[0036] The utility model discloses a roller connection structure of a cutting machine, as shown in the attached Figure 1 and 2 As shown, the connection structure includes a bearing box 2, a connecting shaft 3, a pull rod 4 and a roller 5. The bearing boxes 2 are fixed at both ends of the moving frame 1 of the cutting machine, and the two bearing boxes 2 are both equipped with connecting shafts 3. Specifically, the bearing box 2 is equipped with a fixed bearing, and the connecting shaft 3 passes through the inner ring of the bearing with an interference fit. The roller 5 is arranged between the connecting shafts 3 of the two bearing boxes 2, and the two connecting shafts 3 are tightened by the pull rod 4 to press and fix the roller 5 between the two connecting shafts 3. In addition, the moving frame 1 also fixes the roller motor 6, and one end of the connecting shaft 3 away from the middle of the moving frame 1 passes through the outside of the bearing box 2 and is transmission-connected with the output shaft of the roller motor 6. The transmission connection method can be connected through a coupling, so that the roller motor 6 drives the connecting shaft 3 to rotate and drives the roller 5 to rotate at the same time.

[0037] As attached Figure 7 As shown, a cone 31 with a gradually decreasing outer diameter is provided at one end of the connecting shaft 3. Figure 4 and 5After the two connecting shafts 3 are respectively installed to the two bearing boxes 2, the cones 31 of the two connecting shafts 3 are both facing the middle of the moving frame 1. A mounting hole 301 is set through the axis line of one of the connecting shafts 3, and a threaded hole 302 is set on the end face of the cone 31 of the other connecting shaft 3, and the connecting shaft 3 with the threaded hole 302 is used to connect the roller motor 6, that is, the end of the connecting shaft 3 away from the threaded hole 302 passes through the bearing box 2 and is connected to the output shaft of the roller motor 6 for transmission.

[0038] As attached Figure 6 and 8 As shown, a first stud 41 is provided at one end of the pull rod 4, and the first stud 41 is adapted to the threaded hole 302, and a clamping portion 43 is provided at the other end of the pull rod 4. Preferably, the other end of the pull rod 4 relative to the first stud 41 is a second stud 42, and the second stud 42 is adapted to a connecting nut, which is the clamping portion 43. Further, a hexagonal prism 44 is provided on the end surface of the clamping portion 43 of the pull rod 4, and the hexagonal prism 44 is used to be gripped by a hexagonal wrench to pull the pull rod 4 to rotate.

[0039] As attached Fig. 9 and 10 As shown, the axis of the roller 5 is provided with a connecting hole 503 that passes through, and the end faces of both ends of the roller 5 are provided with tapered holes 501, and the diameter of the tapered holes 501 gradually decreases from the outside of the roller 5 to the inside of the roller 5. Figure 2 The roller 5 is covered with a rubber sleeve 56 , and a plurality of rope grooves 504 are distributed on the annular surface of the rubber sleeve 56 along the extension direction of its axis, and the cutting rope 7 passes around the rope grooves 504 .

[0040] As attached Figure 4 As shown in FIG. 1 , the roller 5 comprises an outer sleeve 51, an inner sleeve 52, a reinforcement ring 53 and an end cover 55. The inner sleeve 52 is arranged inside the outer sleeve 51, and a plurality of the reinforcement rings 53 are fixedly connected between the outer sleeve 51 and the inner sleeve 52. The fixed connection method can be as follows: Figures 9 to 12As shown, the side wall of the outer sleeve 51 is preset with a through welding hole 502 at a position corresponding to each reinforcement ring 53. Multiple reinforcement rings 53 are arranged outside the inner sleeve 52, and the seams of the inner sleeve 52 and the reinforcement rings 53 are welded so that the inner sleeve 52 and the reinforcement rings 53 form a fixed whole. Preferably, a fixed connecting piece 54 is welded between two adjacent reinforcement rings 53 to further improve the strength of the overall structure of the roller 5. After a plurality of reinforcement rings 53 are fixed outside the inner sleeve 52, the inner sleeve 52 and the reinforcement rings 53 are fixed to form a whole body which is inserted into the outer sleeve 51, so that each reinforcement ring 53 corresponds to the welding hole 502, and then the side wall of each welding hole 502 and the seam position of the reinforcement ring 53 are welded, so that the reinforcement ring 53 can form a structure in which the inner sleeve 52 and the outer sleeve 51 are fixedly connected. This structure can reduce the overall material and weight of the roller 5, and through the fixed connection of the reinforcement ring 53, the roller 5 can have a strong radial pressure resistance, so that the roller 5 is not easily deformed. In addition, both ends of the outer sleeve 51 are welded and fixed with end covers 55, and the end faces of the two end covers 55 facing the outside of the outer sleeve 51 are provided with tapered holes 501. The inner sleeve 52 is fixed at the axial center position in the outer sleeve 51, and the axial center line of the inner sleeve 52 passes through to form a connecting hole 503. The connecting hole 503 corresponds to the tapered hole 501.

[0041] Preferably, as attached Figure 5 As shown, the end cover 55 is provided with rubber sealing rings 57 on the two end ring surfaces of the conical hole 501. When the cone 31 is inserted into the conical hole 501, the sealing ring 57 seals the gap between the two ends of the conical hole 501 and the cone 31 to prevent water used to cool the cutting rope 7 during the sawing process from flowing into the conical hole 501 and causing the inner wall of the conical hole 501 to rust, thereby affecting the accuracy of the clamping roller 5.

[0042] As attached Figure 7 and 9 As shown, a protruding stopper 34 is provided on the end surface of one end of the cone 31 of the connecting shaft 3, and a concave stopper groove 505 is provided on the inner end surface of the cone hole 501 of the end cover 55 of the roller 5. When the cone 31 of the connecting shaft 3 is inserted into the cone hole 501 of the end cover 55, the stopper 34 is adapted to be inserted into the stopper groove 505, so that the connecting shaft 3 and the roller 5 automatically form a circumferentially fixed connection structure, so that the roller 5 can be driven to rotate when the connecting shaft 3 rotates.

[0043] After adopting the above structure, when installing the roller 5, the roller 5 is set between the connecting shafts 3 of the two bearing boxes 2, and then the two connecting shafts 3 are pushed toward the middle of the movable frame 1, so that the cones 31 of the two connecting shafts 3 are respectively adapted to fit into the conical holes 501 at both ends of the roller 5 to clamp the roller 5, and then the first stud 41 of the tie rod 4 is passed through the installation hole 301 of the connecting shaft 3 and the connecting hole 503 of the roller 5 and corresponds to the threaded hole 302 of the other connecting shaft 3, and then the tie rod 4 is rotated to screw the first stud 41 into the threaded hole 302 and tighten it, and then The nut passes through the hexagonal prism 44 and is screwed together with the second stud 42, so that the nut is pressed against the outer side of the bearing box 2, thereby pushing the connecting shaft 3 with the mounting hole 301 toward the connecting shaft 3 with the threaded hole 302, so that the cones 31 of the two connecting shafts 3 are close to each other and pressed against the roller 5. The cones 31 of the two connecting shafts 3 are gradually pressed into the tapered holes 501 at both ends of the roller 5, so that the two connecting shafts 3 clamp the roller 5, so that the rotation of the connecting shaft 3 can drive the roller 5 to rotate, thereby assisting in driving the cutting rope 7 to move at high speed.

[0044] Preferably, after the nut and the second stud 42 are screwed together to form a clamping portion 43 fixed relative to the pull rod 4, the first stud 41 of the pull rod 4 is passed through the mounting hole 301 of the connecting shaft 3 and the connecting hole 503 of the roller 5 and then screwed together with the threaded hole 302 of another connecting shaft 3 to be tightened. Similarly, the nut can be pressed against the bearing box 5, thereby pushing the connecting shaft 3 with the mounting hole 301 toward the connecting shaft 3 with the threaded hole 302.

[0045] When disassembling the roller 5, after unscrewing the first stud 41 of the pull rod 4 in reverse order out of the threaded hole 302 of the connecting shaft 3, take the pull rod 4 out of the connecting hole 503 of the roller 5 and the mounting hole 301 of the connecting shaft 3, and then pull the connecting shaft 3 with the mounting hole 301 out of the movable frame 1, so that the cone 31 of the connecting shaft 3 is detached from the conical hole 501 of the roller 5, and then the roller 5 can be removed.

[0046] In addition, as attached Figure 6 As shown, a protective cover 21 is installed on the bearing box 2 having a mounting hole 301. The protective cover 21 is fixed to the end face of the bearing box 2 by means of screws, and the protective cover 21 covers the hexagonal prism 44 at the end of the pull rod 4, thereby forming a partial protection for the hexagonal prism 44.

[0047] From the above-mentioned method of installing and disassembling the roller 5, it can be known that the roller 5 connection structure of the utility model does not need to fix the roller 5 and the bearing box 2, but only needs to be connected and fixed by tightening the pull rod 4, and can be disassembled by loosening and pulling out the pull rod 4. Therefore, loading and unloading are very convenient, which is beneficial to improving the efficiency of installation, maintenance and replacement of the rubber sleeve 56 of the cutting machine.

[0048] The above is only a specific implementation method of the utility model, but the design concept of the utility model is not limited to this. Any non-substantial changes to the utility model using this concept shall be deemed as an infringement of the protection scope of the utility model.

Claims

1. A roller connection structure of a cutting machine, characterized in that: The connection structure includes: A bearing box, to which both ends of the moving frame of the cutting machine are fixed; A connecting shaft, one end of which is provided with a cone with a gradually decreasing outer diameter, and the two bearing boxes are both provided with the connecting shafts, so that the cones of the two connecting shafts are both oriented toward the middle of the moving frame, and a mounting hole is provided through the axis line of one of the connecting shafts, and a threaded hole is provided on the end face of the cone of the other connecting shaft; A pull rod, one end of which is provided with a first stud, the first stud is adapted to the threaded hole, and the other end of the pull rod is provided with a clamping portion with an enlarged outer diameter; A roller, wherein a connecting hole is provided through the axis of the roller, and conical holes are provided on the end faces of both ends of the roller, and the diameter of the conical holes gradually decreases from the outside of the roller to the inside of the roller; Wherein, the roller is arranged between the two connecting shafts, and the cones of the two connecting shafts are respectively adapted to be embedded in the conical holes at both ends of the roller, and the first stud of the pull rod passes through the mounting hole and the connecting hole and is adapted to be spirally connected with the threaded hole, and the clamping part presses the cones of the two connecting shafts toward the roller to clamp and fix the roller.

2. A roller connection structure for a cutting machine as claimed in claim 1, characterized in that: The connecting shaft is provided with a protruding limiting portion on one end face of the cone, and the roller is provided with a recessed limiting groove on the inner end face of the conical hole; when the cone of the connecting shaft is inserted into the conical hole, the limiting portion is adapted to be inserted into the limiting groove.

3. The roller connection structure of a cutting machine according to claim 1, characterized in that: The other end of the pull rod opposite to the first stud is a second stud, and the second stud is adapted to be connected with a nut, which forms the clamping portion.

4. The roller connection structure of a cutting machine according to claim 1, characterized in that: The roller includes an outer sleeve, an inner sleeve, a reinforcement ring and an end cover. The inner sleeve is arranged in the outer sleeve, and a plurality of reinforcement rings are fixedly connected between the outer sleeve and the inner sleeve. The axis of the inner sleeve passes through to form the connecting hole. The end covers are fixed at both ends of the outer sleeve, and the tapered holes are arranged on the end surfaces of the two end covers facing the outside of the outer sleeve.

5. A roller connection structure for a cutting machine as claimed in claim 4, characterized in that: The side wall of the outer sleeve is preset with a penetrating welding hole at a position corresponding to each of the reinforcement rings. After the reinforcement rings are arranged and fixed outside the inner sleeve, the inner sleeve and the reinforcement rings are inserted into the outer sleeve so that each of the reinforcement rings has a corresponding welding hole, and the side wall of the welding hole and the reinforcement ring are welded and fixed.

6. A roller connection structure for a cutting machine according to any one of claims 1, 4 and 5, characterized in that: The roller is covered with a rubber sleeve, and a plurality of rope grooves are distributed on the annular surface of the rubber sleeve along the extension direction of the axis of the rubber sleeve, and the cutting rope passes around the rope grooves.

7. The roller connection structure of a cutting machine according to claim 1, characterized in that: A hexagonal column is arranged at one end of the pull rod away from the first stud.

8. A roller connection structure for a cutting machine as claimed in claim 7, characterized in that: A protective cover is installed in connection with the bearing box having the mounting hole. The protective cover is fixed to the end surface of the bearing box, and the protective cover covers the hexagonal prism at the end of the pull rod.

9. The roller connection structure of a cutting machine according to claim 1, characterized in that: The movable frame fixes the roller motor, wherein one end of the connecting shaft away from the cone passes through the outside of the bearing box and is drivingly connected to the output shaft of the roller motor.

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