Support for dismounting rotor in inner cylinder

Abstract

The utility model relates to the technical field of rotor dismounting and mounting, in particular to a bracket for dismounting a rotor in an inner cylinder, which comprises a platform, a bottom frame for supporting the platform, a ring frame for clamping the rotor and a crane for vertically pulling the ring frame, a groove, supporting columns used for supporting the platform, gaskets used for reducing abrasion between the bottom frame and the ground and lifting nails used for balancing the horizontal plane of the bottom frame are arranged on the bottom frame, an inner cylinder is placed on the upper surface of the platform, the bottom frame is of a rectangular structure, placed on the ground and located under the platform, and a crane is hung on the top of a workshop and located above the annular frame. The height of the bottom frame is finely adjusted through the lifting nails, so that the whole support can be suitable for the ground inclined at a small angle, the springs on the telescopic rods enable the rollers to spontaneously clamp the rotors so as to lock the rotors of various sizes, the detachable positioning rods are used for further preventing the rotors from colliding with the inner barrel body, and the service life of the rotors is prolonged. Meanwhile, the inner cylinder body can be conveniently assembled and disassembled on the platform.

Description

Technical Field

[0001] The utility model relates to the technical field of rotor disassembly and assembly, in particular to a bracket used for dismantling a rotor in an inner barrel. Background Art

[0002] The pelletizer consists of an outer inner cylinder and an inner rotor. The rotor rotates rapidly in the inner cylinder to complete the pelletizing work. When repairing the pelletizer, in order to make the rotor and inner cylinder in a vertical state during disassembly and assembly, without hitting the sealing ring, and making it safer, more reliable and faster to install, the staff needs to manually support the rotor and use a crane to lift the rotor out or put it into the inner cylinder. Due to the lack of fulcrums on the surface of the inner cylinder, safety accidents are very likely to occur. Therefore, an efficient and safe bracket for removing the rotor from the inner cylinder is needed.

[0003] Chinese patent document CN114421721A discloses a hub motor rotor disassembly and assembly tool. The tool features a base plate mounted on a base, with a sliding guide mechanism and a rotating mechanism mounted on the base plate. A base is positioned in the center of the base plate, with the stator mounted on the base plate. The rotor rests on the stator, with a slide mounted on top of the rotor. A guide sleeve is positioned on the base plate, with the lower portion of the guide rail positioned within the sleeve. The upper portion of the guide rail passes through the slide plate and connects to the top plate. A screw seat is positioned in the center of the slide plate, with the lower portion of the screw movably connected to the seat. The upper portion of the screw passes through the center of the top plate. A top cover is mounted on the upper end of the screw. A connecting plate is positioned within the top cover, with a sleeve positioned over the free end of the connecting plate. This solution exhibits strong self-locking properties, improving assembly and disassembly efficiency. Highly precisely positioned guide rails and screws ensure a smooth and safe assembly and disassembly process.

[0004] There are still several points for improvement in the above solution: it can only be placed on a horizontal ground, and the operating environment requirements are relatively high; it can only self-lock rotors of fixed sizes, and its versatility is low. Utility Model Content

[0005] In order to solve the problems of the existing technology, the utility model provides a bracket for removing the rotor in the inner cylinder, comprising a platform and a base frame for supporting the platform, a ring frame for clamping the rotor and a crane for vertically pulling the ring frame. The base frame is provided with a groove, a pillar for supporting the platform, a gasket for reducing wear between the base frame and the ground and a lifting nail for balancing the horizontal plane of the base frame. The inner cylinder is placed on the upper surface of the platform. The base frame is a rectangular structure placed on the ground and directly below the platform. The ring frame is arranged directly above the platform and surrounds the inner cylinder. The crane is suspended on the top of the workshop and above the ring frame. The groove is arranged on the upper surface of the base frame, one end of the pillar is installed at the corner of the groove, and the other end is installed on the lower surface of the platform. The gasket is directly below the corner of the base frame, and the lifting nail passes through the base frame and is connected to the upper surface of the gasket.

[0006] Preferably, a spirit level is provided in the groove, and the support pillars are connected to the base frame and the platform in an inclined shape.

[0007] Preferably, the lifting pin is provided with a thread, a positioning platform is installed at the corner of the groove, and a screw hole is provided at the center of the positioning platform.

[0008] Preferably, a positioning rod, a roller and a telescopic rod are provided on the ring frame, one end of the positioning rod is installed on the lower surface of the ring frame, and the other end is installed on the upper surface of the platform, the telescopic rod is horizontally arrayed on the inner side of the ring frame, and the roller is installed at the end of the telescopic rod and fits with the rotor.

[0009] Preferably, a boss is installed on the side of the platform, a rod hole is provided at the center of the boss, and one end of the positioning rod is provided in the rod hole.

[0010] Preferably, a slot is provided on the inner side of the ring frame, a mounting bracket is provided on one end of the telescopic rod, and the other end is inserted into the slot, and the spring is surrounded on the outer side of the telescopic rod.

[0011] Preferably, the crane is provided with a rotating drum, a main rope, an auxiliary rope and a guide rail. Three rotating drums are installed in sequence at the bottom of the crane. One end of the main rope is connected to the middle rotating drum, the other end of the main rope is connected to the top of the rotor, one end of the auxiliary rope is connected to the rotating drums on both sides, the other end of the auxiliary rope is connected to the top of the ring frame, and the guide rail is connected to the top beam of the workshop.

[0012] Preferably, a pulley is provided on the top of the crane, and motors are provided on both sides of the crane.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. The utility model fine-tunes the height of the base frame through the lifting pins, so that the entire bracket can be used for the ground with a small angle of inclination. Specifically, the spirit level is used to measure the inclination of the base frame on the ground, which facilitates the lifting pins to fine-tune the height of the base frame. The lifting pins are rotated on the positioning table through the thread to control the distance between the gasket and the base frame.

[0015] 2. The spring on the telescopic rod in the present invention enables the roller to spontaneously clamp the rotor so as to lock rotors of various sizes. Specifically, the slot is used to install the telescopic rod and the spring, the mounting frame serves as the rotation center of the roller, and the spring provides elasticity for the telescopic rod, so that the telescopic rod can spontaneously squeeze the mounting frame, thereby making the roller fit the rotor.

[0016] 3. The utility model uses a detachable positioning rod to further avoid collision between the rotor and the inner cylinder, and at the same time facilitates the loading and unloading of the inner cylinder on the platform. Specifically, the boss and the rod hole are used to install the positioning rod. Since the positioning rod is arranged around the platform and the inner cylinder needs to be placed on the platform by translation, a positioning rod that can be quickly installed and removed in the rod hole is used to avoid obstruction when installing and removing the inner cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a perspective view of a bracket used to remove the rotor in the inner barrel.

[0018] Figure 2 It is a perspective view of a chassis in a bracket used to remove the rotor in the inner barrel.

[0019] Figure 3 It is a three-dimensional view of the lifting pins in the bracket used to remove the rotor in the inner barrel.

[0020] Figure 4 It is a stereoscopic view of a ring frame in a bracket used to remove a rotor in an inner barrel.

[0021] Figure 5 It is a perspective view of a roller in a bracket used to remove a rotor in an inner barrel.

[0022] Figure 6 It is a perspective view of a crane in a bracket used to remove the rotor from the inner barrel.

[0023] The numbers in the figure are: 1. Platform; 2. Base frame; 3. Groove; 31. Level; 4. Pillar; 5. Gasket; 6. Lifting pin; 61. Thread; 62. Positioning platform; 63. Screw hole; 7. Ring frame; 71. Positioning rod; 711. Rod hole; 712. Boss; 72. Roller; 73. Telescopic rod; 731. Mounting frame; 732. Slot hole; 733. Spring; 8. Crane; 81. Drum; 82. Auxiliary rope; 83. Main rope; 84. Guide rail; 841. Pulley; 842. Motor. DETAILED DESCRIPTION

[0024] In order to further understand the features, technical means, specific objectives and functions achieved by the present invention, the present invention is described in further detail below in conjunction with the accompanying drawings and specific implementation methods.

[0025] See also Figures 1 to 6 As shown, a bracket for removing the rotor in the inner cylinder includes a platform 1 and a base frame 2 for supporting the platform 1, a ring frame 7 for clamping the rotor and a crane 8 for vertically pulling the ring frame 7. The base frame 2 is provided with a groove 3, a pillar 4 for supporting the platform 1, a gasket 5 for reducing wear between the base frame 2 and the ground, and a lifting nail 6 for balancing the horizontal plane of the base frame 2. The inner cylinder is placed on the upper surface of the platform 1. The base frame 2 is a rectangular structure placed on the ground and is directly below the platform 1. The ring frame 7 is arranged directly above the platform 1 and surrounds the inner cylinder. The crane 8 is suspended on the top of the workshop and is above the ring frame 7. The groove 3 is provided on the upper surface of the base frame 2. One end of the pillar 4 is installed at the corner of the groove 3, and the other end is installed on the lower surface of the platform 1. The gasket 5 is directly below the corner of the base frame 2. The lifting nail 6 passes through the base frame 2 and is connected to the upper surface of the gasket 5.

[0026] The support supports the platform 1 through the chassis 2 to hold the inner cylinder, uses the lifting nail 6 to fine-tune the height between each corner of the chassis 2 and the ground to ensure that the inner cylinder is perpendicular to the direction of gravity, so that the rotor can be vertically lifted out of the inner cylinder along the direction of gravity, the ring frame 7 clamps and fixes the rotor when the rotor is lifted out, so that the rotor can only move vertically, avoiding the rotor from shaking on the crane 8 and colliding with the inner cylinder, and also solving the safety hazards caused by manual support of the rotor by the staff, the gasket 5 facilitates the height adjustment of the lifting nail 6 between the chassis 2 and the ground while bearing the friction with the ground, the gasket 5 can be quickly installed and removed from the chassis 2, facilitating maintenance and replacement, and avoiding the high-wear gasket 5 from causing the sliding between the chassis 2 and the ground.

[0027] Referring to Figure 1 and Figure 2 , the recess 3 is provided with a level 31, and the support column 4 is connected to the chassis 2 and the platform 1 in an inclined manner.

[0028] The level 31 is used to measure the inclination of the chassis 2 on the ground, facilitating the height fine-tuning of the lifting nail 6 on the chassis 2, and the use of the inclined support column 4 can effectively increase the cross-sectional area of the horizontal plane, thereby reducing the pressure on the column and increasing the support strength of the column on the platform 1.

[0029] Referring to Figures 1 to 3 , the lifting nail 6 is provided with a thread 61, and the corner of the recess 3 is provided with a positioning table 62, and the center of the positioning table 62 is provided with a threaded hole 63.

[0030] The lifting nail 6 and the threaded hole 63 are the same size, and the rotation of the lifting nail 6 on the positioning table 62 through the thread 61 can control the distance between the gasket 5 and the chassis 2, thereby fine-tuning the chassis 2, and the distance between every two lifting nails 6 should not be too large to avoid changing the contact area between the entire support and the ground.

[0031] Referring to Figures 1 to 4 , the ring frame 7 is provided with a positioning rod 71, a roller 72 and a telescopic rod 73, one end of the positioning rod 71 is installed on the lower surface of the ring frame 7, the other end is installed on the upper surface of the platform 1, the telescopic rod 73 is arranged horizontally on the inner side of the ring frame 7, and the roller 72 is installed on the port of the telescopic rod 73 and is in contact with the rotor.

[0032] The positioning rod 71 is used to prevent the ring frame 7 from rotating around itself when pulled by the crane 8, avoiding collision between the rotor and the inner cylinder, the telescopic rod 73 is used to press the roller 72 to make it in contact with the side of the rotor, and the roller 72 is used to radially clamp the rotor and ensure the axial freedom of the rotor, so that the rotor can move up and down with the crane 8 without rotating.

[0033] Referring to Figure 2As shown, the side of the platform 1 is mounted with a boss 712, the center of which is provided with a rod hole 711, one end of the positioning rod 71 is arranged in the rod hole 711.

[0034] The boss 712 and the rod hole 711 are used to install the positioning rod 71, because the positioning rod 71 is arranged around the platform 1, and the inner cylinder needs to be placed on the platform 1 by translation, the positioning rod 71 which can be quickly installed and dismounted in the rod hole 711 is used to avoid being hindered when the inner cylinder is installed and dismounted.

[0035] As shown, Figure 5 As shown, the inner side of the ring frame 7 is provided with a slot hole 732, one end of the telescopic rod 73 is provided with a mounting bracket 731, the other end is inserted into the slot hole 732, and the spring 733 surrounds the outer side of the telescopic rod 73.

[0036] The slot hole 732 is used to install the telescopic rod 73 and the spring 733, the mounting bracket 731 serves as the rotation center of the roller 72, and the spring 733 provides the telescopic rod 73 with elastic ability, so that the telescopic rod 73 can spontaneously extrude the mounting bracket 731, thereby making the roller 72 adhere to the rotor.

[0037] As shown, Figures 1 to 6 As shown, the crane 8 is provided with a rotating drum 81, a main rope 83, a secondary rope 82 and a guide rail 84, the rotating drum 81 has three rotating drums which are sequentially installed at the bottom of the crane 8, one end of the main rope 83 is connected with the middle rotating drum 81, the other end of the main rope 83 is connected with the top of the rotor, one end of the secondary rope 82 is connected with the rotating drum 81 on both sides, the other end of the secondary rope 82 is connected with the top of the ring frame 7, and the guide rail 84 is connected with the top beam of the workshop.

[0038] The main rope 83 and the secondary rope 82 together pull the rotor and the ring frame 7 along with the rotation of the rotating drum 81, so as to ensure that the ring frame 7 can clamp the rotor until the rotor is taken out of the inner cylinder.

[0039] As shown, Figure 6 As shown, the top of the crane 8 is provided with a pulley 841, and the two sides of the crane 8 are provided with a motor 842.

[0040] The pulley 841 adheres to the upper surface of the guide rail 84 to limit the displacement of the crane 8, which facilitates the crane 8 to install and dismount the inner cylinder on the platform 1 and take out the rotor from the inner cylinder, and the motor 842 provides power for the rotation of the rotating drum 81, so that all the rotating drums 81 on the crane 8 can rotate synchronously, thereby ensuring the synchronous movement of the ring frame 7 and the rotor.

[0041] The above embodiments merely represent one or several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the spirit of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A support for removing a rotor from an inner barrel, comprising a platform (1), a base frame (2) for supporting the platform (1), a ring frame (7) for clamping the rotor, and a crane (8) for vertically pulling the ring frame (7); It is characterized in that The chassis (2) is provided with a groove (3), a pillar (4) for supporting the platform (1), a gasket (5) for reducing wear between the chassis (2) and the ground, and a lifting nail (6) for balancing the horizontal plane of the chassis (2); an inner cylinder is placed on the upper surface of the platform (1); the chassis (2) is a rectangular structure placed on the ground and directly below the platform (1); a ring frame (7) is arranged directly above the platform (1) and surrounds the inner cylinder; a crane (8) is suspended on the top of the workshop and is above the ring frame (7); the groove (3) is provided on the upper surface of the chassis (2); one end of the pillar (4) is installed at the corner of the groove (3), and the other end is installed on the lower surface of the platform (1); the gasket (5) is directly below the corner of the chassis (2); and the lifting nail (6) passes through the chassis (2) and is connected to the upper surface of the gasket (5).

2. A bracket for removing a rotor from an inner drum according to claim 1, characterized in that: A level (31) is provided in the groove (3), and the support (4) is connected to the base frame (2) and the platform (1) in an inclined shape.

3. The bracket for removing the rotor in the inner drum according to claim 1, characterized in that: A thread (61) is provided on the lifting pin (6), a positioning platform (62) is installed at the corner of the groove (3), and a screw hole (63) is provided at the center of the positioning platform (62).

4. The bracket for removing the rotor in the inner drum according to claim 1, characterized in that: A positioning rod (71), a roller (72) and a telescopic rod (73) are provided on the ring frame (7), one end of the positioning rod (71) is mounted on the lower surface of the ring frame (7), and the other end is mounted on the upper surface of the platform (1), the telescopic rod (73) is horizontally arrayed on the inner side of the ring frame (7), and the roller (72) is mounted on the end of the telescopic rod (73) and fits with the rotor.

5. The bracket for removing the rotor in the inner drum according to claim 4, characterized in that: A boss (712) is installed on the side of the platform (1), a rod hole (711) is provided at the center of the boss (712), and one end of the positioning rod (71) is provided in the rod hole (711).

6. The bracket for removing the rotor in the inner drum according to claim 4, characterized in that: A slot hole (732) is provided on the inner side of the ring frame (7), a mounting frame (731) is provided on one end of the telescopic rod (73), and the other end is inserted into the slot hole (732), and the spring (733) is surrounded on the outer side of the telescopic rod (73).

7. The bracket for removing the rotor in the inner drum according to claim 1, characterized in that: The crane (8) is provided with a rotating drum (81), a main rope (83), an auxiliary rope (82) and a guide rail (84). Three rotating drums (81) are sequentially installed at the bottom of the crane (8). One end of the main rope (83) is connected to the rotating drum (81) in the middle, and the other end of the main rope (83) is connected to the top of the rotor. One end of the auxiliary rope (82) is connected to the rotating drums (81) on both sides, and the other end of the auxiliary rope (82) is connected to the top of the ring frame (7). The guide rail (84) is connected to the top beam of the workshop.

8. The bracket for removing the rotor in the inner drum according to claim 7, characterized in that: A pulley (841) is provided on the top of the crane (8), and motors (842) are provided on both sides of the crane (8).

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