Convenient-to-maintain cabin door winding device of maintenance cabin for nodular cast iron pipe

Abstract

The invention discloses a maintenance bin door winding device convenient to maintain for a nodular cast iron pipe, and belongs to the technical field of winding equipment, the maintenance bin door winding device comprises a gear motor and a driving shaft, and the driving shaft is composed of a first shaft part inserted into the gear motor and second shaft parts detachably connected to the two ends of the first shaft part. According to the maintenance bin door winding device convenient to maintain for the nodular cast iron pipe, the driving shaft of the winding device is designed into three sections which are detachably connected through the couplings, disassembly, assembly and maintenance of the speed reducing motor are very convenient, the maintenance efficiency of the speed reducing motor is improved, and the equipment maintenance time is shortened; and workers are effectively prevented from working in a high-temperature and high-humidity environment for a long time, and a powerful guarantee is provided for orderly production of the nodular cast iron pipes.

Description

Technical Field

[0001] The invention relates to the technical field of hoisting equipment, and in particular to a hoisting device for a curing bin door of a ductile iron pipe which is easy to maintain. Background Art

[0002] During the production process of ductile iron pipes, the inside of the pipes needs to be lined with cement for corrosion protection. Since slag cement is usually used, in order to ensure that the cement has sufficient strength, the pipes must be cured in a high temperature and high humidity environment. Currently, there are two ways of curing: curing in a curing pool and curing in a curing bin. When curing in a curing bin, pipes entering and exiting the bin need to be opened and closed by a winch installed on the top of the bin door. The power of the winch is a reduction motor with a hollow shaft, which is fixed to the upper part of the top of the bin door, about 8 meters above the ground. Affected by the length specifications of the ductile iron pipe workpiece, the curing bin door is generally wider, so the length of the drive shaft installed in the reduction motor is usually more than 7 meters, Figure 3 A schematic diagram of an existing health warehouse door winch device is shown, in which a longer drive shaft 10' is installed in the hollow shaft inside the reduction motor 7', and the warehouse door is opened and closed by the drive shaft 10'. Since the reduction motor of the winch device is in a high temperature and high humidity environment for a long time, it is easy to cause the motor to be damaged and needs to be repaired in time. During maintenance, the reduction motor is severely rusted and difficult to disassemble. It is necessary to disassemble the entire drive shaft and the reduction motor together, and then remove the long drive shaft from the hollow shaft of the reducer. The whole disassembly process is very inconvenient, and also leads to a long maintenance time, affecting the orderly production. In addition, due to the high temperature and high humidity on-site environment, the working environment of the maintenance workers is very poor, which seriously affects the workers' physical and mental health. Summary of the invention

[0003] In view of the technical problems existing in the background technology, the present invention provides a curing bin door winch device for ductile iron pipes that is easy to maintain. The driving shaft of the winch device is designed to be divided into three sections and detachably connected through a coupling, which makes it very convenient to disassemble and maintain the reduction motor, thereby improving the maintenance efficiency of the reduction motor, reducing equipment maintenance time, and providing strong guarantee for the orderly production of ductile iron pipes.

[0004] The technical solution of the present invention to solve the technical problem is as follows:

[0005] The present invention discloses a maintenance-friendly ductile iron pipe curing bin door winch device, comprising a reduction motor and a drive shaft, wherein the drive shaft is composed of a first shaft portion inserted into the reduction motor and a second shaft portion detachably connected to both ends of the first shaft portion. Through the above structure, when the reduction motor connected to the first shaft portion needs to be disassembled for maintenance, the two ends of the first shaft portion can be disassembled and separated from the two sections of the second shaft portion, and the reduction motor and the first shaft portion can be easily disassembled for further maintenance, which also facilitates the installation of the reduction motor and the first shaft portion.

[0006] In the above technical solution, the lengths of the first shaft portion and the second shaft portion can be designed as required. Usually, in order to facilitate the disassembly and assembly of the reduction motor, the length of the first shaft portion is smaller than the length of the second shaft portion.

[0007] In the above technical solution, the length of the first shaft portion is preferably 400mm to 1000mm, and the length of the first shaft portion is preferably slightly protruding from both sides of the reduction motor to facilitate connection with the second shaft portion, so that the length of the first shaft portion is much smaller than the length of the second shaft portion, reducing the difficulty of disassembly and assembly of the reduction motor.

[0008] To facilitate the connection between the first shaft portion and the second shaft portion, in the above technical solution, the outer sides of the two ends of the first shaft portion are respectively provided with first half couplings, and the two ends of the second shaft portion connected to the first shaft portion are respectively provided with second half couplings, and the first half coupling and the second half coupling are connected and fixed by multiple bolt assemblies, and the bolt assemblies include screws, nuts, gaskets, etc.

[0009] In the above technical solution, in order to facilitate the positioning connection and torque transmission needs of the first shaft portion, the second shaft portion and the first half-coupling and the second half-coupling, key grooves are opened and keys are installed on the outer sides of the two ends of the first shaft portion and the inner sides of the two first half-couplings respectively, and key grooves are opened and keys are installed on the outer sides of the end of the second shaft portion and the inner sides of the second half-couplings respectively.

[0010] In the above technical solution, in order to prevent the first half-coupling and the second half-coupling from shifting on the first shaft portion and the second shaft portion, a plurality of top screw holes are respectively opened on the first half-coupling and the second half-coupling, and a fixing screw is respectively installed in each of the top screw holes, and the bottom of the fixing screw is pressed against the first shaft portion and the second shaft portion. Before the first shaft portion and the second shaft portion are connected, the first half-coupling and the second half-coupling are locked on the first shaft portion and the second shaft portion by the fixing screw.

[0011] In the above technical solution, in order to facilitate the positioning and connection of the first half-coupling and the second half-coupling and the concentricity after the second shaft portion is connected to the first shaft portion, a concave-convex stop structure for auxiliary positioning is arranged between the contact positions of the first half-coupling and the second half-coupling, that is, matching concave stop and convex stop are respectively arranged on the corresponding sides of the first half-coupling and the second half-coupling to form a concave-convex stop structure to assist in positioning when the two shaft portions are connected.

[0012] Compared with the prior art, the easy-to-maintain ductile iron pipe curing bin door winch device of the present invention has the following beneficial effects:

[0013] (1) The design structure of the present invention is novel and reasonable. The drive shaft used on the reduction motor of the hoisting equipment is designed to be composed of a short first shaft portion and two long second shaft portions, and the two ends of the first shaft portion and the second shaft portion are detachably connected. When the reduction motor needs maintenance, the second shaft portions on both sides do not need to be disassembled, and only the two ends of the first shaft portion need to be disassembled. Then, the first shaft portion and the reduction motor can be removed as a whole, thereby realizing rapid maintenance of the reduction motor of the hoisting equipment in a high temperature and high humidity environment.

[0014] (2) The present invention provides a first half coupling and a second half coupling for connecting the first shaft portion and the second shaft portion, so that the first shaft portion and the second shaft portion can be quickly disassembled and assembled by only disassembling and assembling a few bolt assemblies; the present invention provides corresponding keyways and installs keys on the first half coupling, the second half coupling, the first shaft portion and the second shaft portion, so that the torque of the reduction motor can be effectively transmitted to any position of the drive shaft connected as a whole; the present invention provides a concave and convex stop structure between the first half coupling and the second half coupling, so as to assist in positioning and ensure the concentricity of the first shaft portion and the second shaft portion after connection; the present invention provides top screw holes on the first half coupling and the second half coupling and installs set screws, so as to effectively prevent the first half coupling and the second half coupling from shifting on the second shaft portion and the first shaft portion. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the present invention;

[0016] Figure 2 is a schematic diagram of the first shaft portion and the second shaft portion being connected by a first half coupling and a second half coupling in the present invention;

[0017] Figure 3 It is a structural schematic diagram of the existing health storage warehouse door winch device;

[0018] Figure 1-2 Middle: 1. Second shaft; 2. Second half coupling; 3. Set screw; 4. Concave and convex stop structure; 5. First half coupling; 6. Bolt assembly; 7. Speed ​​reducer motor; 8. First shaft; 9. Key;

[0019] Figure 3 Middle: 7', reduction motor; 10', drive shaft. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention. Unless otherwise defined, the technical terms or scientific terms used herein should be the usual meanings understood by people with general skills in the field to which the present disclosure belongs. The "upper", "lower", "left", "right", "front", "back", "inside", "outside" and the like used in the patent application specification and claims of the present disclosure are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship also changes accordingly. The parts not described in detail in the present invention are all known technologies of technicians in the technical field.

[0021] like Figure 1-2 As shown, the present invention is a ductile iron pipe health storage bin door winch device that is easy to maintain, which includes a reduction motor 7 and a drive shaft. The drive shaft is composed of a first shaft portion 8 inserted on the reduction motor 7 and a second shaft portion 1 detachably connected to the two ends of the first shaft portion 8. In this way, when the reduction motor 7 fails and needs to be disassembled, it is easy to disassemble the first shaft portion 8 together with the reduction motor 7 from the second shaft portions 1 on both sides as a whole, and the two sections of the second shaft portion 1 do not need to be disassembled. The length of the first shaft portion 8 and the second shaft portion 1 can be designed according to actual conditions. Generally, the length of the second shaft portion 1 is greater than the first shaft portion 8. For example, if the length of the drive shaft is 7320mm, the length of the first shaft portion 8 can be set to 400mm, and the length of the two sections of the second shaft portion 1 can be set to 3460mm. In this way, the first shaft portion 8 installed on the reduction motor 7 is very short, and only a small length will exceed the two sides of the reduction motor 7, which is much smaller than the length of the second shaft portion, which is very convenient for disassembly and maintenance.

[0022] In this embodiment, in order to facilitate the connection between the two ends of the first shaft portion 8 and the two sections of the second shaft portion 1, the first shaft portion 8 is respectively provided with a first half coupling 5 on the outer side of the two ends, and the two ends of the second shaft portions 1 connected to the first shaft portion 8 are respectively provided with a second half coupling 2, and the first half coupling 5 and the second half coupling 2 are connected and fixed by a plurality of bolt assemblies 6. Furthermore, key slots are respectively provided on the outer side of the two ends of the first shaft portion 8 and the inner side of the two second half couplings 2, and keys 9 are installed, and key slots are respectively provided on the outer side of the end of the second shaft portion 1 and the inner side of the first half coupling 5, and keys 9 are installed, so that after the connection, the torque of the reduction motor 7 can be transmitted to any position of the drive shaft.

[0023] In this embodiment, a plurality of top screw holes are respectively formed on the first half coupling 5 and the second half coupling 2, and a set screw 3 is respectively installed in each of the top screw holes. The bottom of the set screw 3 is pressed against the first shaft portion 8 and the second shaft portion 1. Before the first shaft portion 8 and the second shaft portion 1 are connected, the set screw 3 can be used to lock the first half coupling 5 and the second half coupling 2 to prevent displacement on the second shaft portion 1 and the first shaft portion 8.

[0024] In this embodiment, a concave-convex stop structure 4 for auxiliary positioning is provided between the contact position of the first half coupling 5 and the second half coupling 2. The concave-convex stop structure 4 can assist positioning and effectively ensure the concentricity of the first shaft portion 8 and the second shaft portion 1 after connection.

[0025] During use, when the reduction motor 7 needs to be repaired or replaced, the maintenance worker only needs to loosen the bolt assembly 6 and the set screw 3 to disengage the first half coupling 5 on both sides of the first shaft portion 8 and the second half coupling 2 on the second shaft portion 1 to both sides respectively, and it is easy to disassemble the first shaft portion 8 and the reduction motor 7 as a whole for further maintenance.

Claims

1. A maintenance-friendly ductile iron pipe curing bin door winch device, comprising a reduction motor (7) and a drive shaft, characterized in that: The driving shaft is composed of a first shaft portion (8) inserted into the reduction motor (7) and a second shaft portion (1) detachably connected to both ends of the first shaft portion (8).

2. The easy-to-maintain health storage bin door winch device for ductile iron pipes according to claim 1 is characterized in that: The length of the first shaft portion (8) is shorter than the length of the second shaft portion (1).

3. A maintenance-friendly health storage bin door winch device for ductile iron pipes according to claim 1 or 2, characterized in that: The length of the first shaft portion (8) is 400 mm to 1000 mm.

4. A maintenance-friendly health storage bin door winch device for ductile iron pipes according to claim 1 or 2, characterized in that: First half couplings (5) are respectively mounted on the outer sides of both ends of the first shaft portion (8); second half couplings (2) are respectively mounted on the ends of the two second shaft portions (1) connected to the first shaft portion (8); the first half couplings (5) and the second half couplings (2) are connected and fixed by a plurality of bolt assemblies (6).

5. The easy-to-maintain health storage bin door winch device for ductile iron pipes according to claim 4, characterized in that: Keyways (9) are provided on the outer sides of both ends of the first shaft portion (8) and the inner sides of the two first half couplings (5), respectively corresponding to each other, and keys (9) are installed thereon; keyways (9) are provided on the outer sides of the ends of the second shaft portion (1) and the inner sides of the second half couplings (2), respectively corresponding to each other.

6. The easy-to-maintain health storage bin door winch device for ductile iron pipes according to claim 5, characterized in that: The first half coupling (5) and the second half coupling (2) are respectively provided with a plurality of top screw holes, each of which is respectively provided with a set screw (3), and the bottom of the set screw (3) is pressed against the first shaft portion (8) and the second shaft portion (1).

7. A maintenance-friendly curing bin door winch device for ductile iron pipes according to claim 5 or 6, characterized in that: A concave-convex stop structure (4) for auxiliary positioning is provided between the contact positions of the first half coupling (5) and the second half coupling (2).

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