Replacing device of gear box

Abstract

A gear box replacing device comprises a support and a moving mechanism arranged on the support, the moving mechanism is arranged in the dismounting or mounting direction of a gear box, the moving mechanism is detachably connected with the gear box, and when the gear box and the moving mechanism are in a connected state, the moving mechanism is detachably connected with the gear box. And the gear box can move through the moving mechanism. Compared with the prior art, the gear box maintenance device has the advantages that when the gear box needs to be maintained, a maintainer does not need to detach auxiliary equipment from the position above the gear box, and only needs to use the jack to jack the gear box to a certain height, place the moving mechanism below the gear box and complete connection of the gear box and the moving mechanism; and a maintainer can push the gear box and move through the moving mechanism, so that the process of disassembling and assembling the gear box is quicker and more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of gear box assembly equipment, in particular to a gear box replacement device. Background Art

[0002] A rolling mill is a device that realizes the metal rolling process. The rolling mill includes rollers, gearboxes, self-contained coiling and unwinding or material unwinding platforms, etc. Among them, the function of the gearbox is to transmit and distribute the power of the motor to multiple rollers, and to meet the torque and speed required by the rolling mill through the reduction ratio. Gearboxes will have many problems when used for a long time, so the gearbox needs to be overhauled. However, the existing gearboxes generally weigh more than 15 tons and are large in size. The gearboxes are usually removed by hoisting operations, and the gearboxes are installed between the motor and the archway. The hoisting operation is difficult and the disassembly time is long, which makes the rolling mill downtime longer and wastes the productivity of the enterprise.

[0003] In the prior art, there are already improved gearboxes for the above-mentioned problems, such as the Chinese utility model with patent number CN201621008035.0 (authorization announcement number CN206028329U). This patent divides the integral gearbox into a split type. When a roller or a gear has a problem, only one gearbox cover needs to be removed without lifting the entire gearbox. Moreover, a single gearbox cover is light in weight and small in size, making lifting more convenient and quick, saving maintenance time, reducing production operation delays, and improving production efficiency.

[0004] However, many auxiliary equipment such as paper padding platforms, flues, fire-fighting pipelines, hydraulic pipelines, cables, etc. are installed on the top of the existing gearbox, so maintenance personnel cannot work directly on the gearbox, which makes it inconvenient to directly remove the gearbox cover. At present, when maintenance personnel want to repair the gearbox, they need to remove all the above-mentioned auxiliary equipment first. After all the auxiliary equipment is removed, the fixing bolts of the gearbox are removed before the gearbox can be lifted out for maintenance. Therefore, the entire disassembly process of the gearbox is relatively cumbersome, and the disassembly operation time is long. In addition, the entire operation process will involve a large amount of cutting, welding and climbing operations, which have high operational risks and will increase the labor intensity of workers and the production cost of the enterprise. In addition, if an auxiliary equipment is disassembled, the center of the hoisting of the auxiliary equipment is not found, which may cause the hoisting steel structure to tilt and cut the sling, which may cause the steel structure to fall and injure the equipment or staff. For this reason, it is necessary to make further improvements to the replacement device of the gearbox. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a gear box replacement device which is easy to disassemble and install and does not require disassembly of auxiliary equipment in view of the above-mentioned existing technical status.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: the replacement device of the gear box includes a bracket and a moving mechanism arranged on the bracket, the moving mechanism is arranged along the direction of disassembly or installation of the gear box, the moving mechanism is detachably connected to the gear box, and when the gear box and the moving mechanism are in a connected state, the gear box can be moved by the moving mechanism.

[0007] In order to enable the gear box to move along the moving mechanism, preferably, the moving mechanism includes a guide rail and a fixing portion that can move along the guide rail, and the gear box can be mounted on the fixing portion and can move along the guide rail with the aid of the fixing portion.

[0008] Furthermore, the fixing part includes a plurality of rollers that can move along the guide rail and a connecting member connected to the plurality of rollers, and the connecting member is detachably connected to the bottom of the gear box. The connecting member is connected to the plurality of rollers so that the plurality of rollers rotate at the same speed and direction, so that the gear box moves more smoothly.

[0009] In order to make the movement process of the gearbox more stable, preferably, the gearbox is detachably connected to the two moving mechanisms, and the two moving mechanisms are arranged in parallel. The two parallel moving mechanisms make the movement of the gearbox more stable, and the maintenance personnel can push the gearbox to move along the moving mechanisms, thereby facilitating the removal and installation of the gearbox.

[0010] In order to make the bracket adaptable to different usage scenarios, preferably, the two mobile mechanisms are supported on the ground by a plurality of the brackets, and the brackets include two support columns with adjustable heights and a connecting rod, and the two ends of the connecting rod are respectively fixedly connected to the two support columns, so that the bracket is arranged in an H shape. In actual usage scenarios, there may be a situation where the ground is inclined or has steps. The bracket uses the support rod with adjustable height to keep the guide rails of the two mobile mechanisms in a horizontal setting, so that the gear box can be smoothly moved out.

[0011] In order to ensure that the gear box does not separate from the moving mechanism, preferably, the moving mechanism is provided with a stop mechanism for preventing the gear box from separating from the moving mechanism. The stop mechanism has various structures, such as a baffle, a limit block or other devices that stop the roller from rotating.

[0012] Furthermore, the stop mechanism is arranged at both ends of the moving mechanism. The stop mechanisms arranged at both ends of the moving mechanism limit the moving range of the gear box.

[0013] Compared with the prior art, the advantage of the present invention is that when the gearbox needs maintenance, the maintenance personnel do not need to remove the auxiliary equipment from the top of the gearbox. They only need to use a jack to lift the gearbox to a certain height, place the mobile mechanism under the gearbox, and complete the connection between the gearbox and the mobile mechanism, so that the maintenance personnel can push the gearbox and move it through the mobile mechanism, thereby making the process of disassembling and installing the gearbox faster and more convenient. Therefore, the gearbox replacement device not only has a simple structure, low production cost, and a wide range of applications, but also can greatly reduce the time and risk of maintenance operations and reduce the labor intensity of workers. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view of an embodiment of the utility model;

[0015] Figure 2 A top view of an embodiment of the utility model;

[0016] Figure 3 It is a side view of an embodiment of the utility model. DETAILED DESCRIPTION

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0018] like Figures 1 to 3 Shown is Example 1 of the utility model.

[0019] like Figure 1 As shown, the gearbox replacement device of this embodiment includes a bracket 1 and a moving mechanism 2 arranged on the bracket 1. The moving mechanism 2 is arranged along the direction of disassembly or installation of the gearbox 3. The moving mechanism 2 is detachably connected to the gearbox 3. When the gearbox 3 and the moving mechanism 2 are connected, the gearbox 3 can be moved by the moving mechanism 2. In addition, a stop mechanism 4 for preventing the gearbox 3 from being separated from the moving mechanism 2 is provided on the moving mechanism 2. The stop mechanism 4 is arranged at both ends of the moving mechanism 2. The stop mechanism 4 in this embodiment includes a connecting piece connected to the moving mechanism 2 and a stopper connected to the connecting piece. The stopper can prevent the gearbox 3 from continuing to move, thereby preventing the gearbox 3 from being separated from the moving mechanism 2.

[0020] like Figure 2 and Figure 3As shown, the gear box 3 is detachably connected to the two mobile mechanisms 2, and the two mobile mechanisms 2 are arranged in parallel. The two mobile mechanisms 2 are supported on the ground by a plurality of brackets 1, and the brackets 1 include two support columns 11 with adjustable heights and a connecting rod 12. The two ends of the connecting rod 12 are respectively fixedly connected to the two support columns 11, so that the bracket 1 is arranged in an H shape. In the actual use scenario, there may be a situation where the ground is inclined or has steps. The bracket 1 uses the support rod 11 with adjustable height to keep the guide rails 21 of the two mobile mechanisms 2 in a horizontal setting, so that the gear box 3 can be smoothly moved out. Among them, the moving mechanism 2 includes a guide rail 21 and a fixed part that can move along the guide rail 21, the fixed part includes a plurality of rollers 22 that can move along the guide rail 21 and a connecting member 23 connected to the plurality of rollers 22, the connecting member 23 is detachably connected to the bottom of the gear box 3, and the connecting member 23 is connected to the plurality of rollers 22 so that the speed and direction of rotation of the plurality of rollers 22 are consistent, so that the movement of the gear box 3 is smoother. When the gear box 3 is connected to the connecting member 23 of the fixed part, the gear box 3 can move along the guide rail 21 with the help of the fixed part.

[0021] The workflow of this embodiment is:

[0022] A. When the gearbox 3 needs to be repaired, first remove the equipment connected to the gearbox 3, that is, remove the input and output shafts of the gearbox 3, remove the lubrication pipeline of the gearbox 3, and remove the fixing bolts of the gearbox 3;

[0023] B. Remove the main motor connection equipment, remove the main motor connection wires, remove the cooling and lubrication pipelines, and use a crane to lift the large motor out as a whole;

[0024] C. Then, use a hydraulic jack to lift the gear box 3 to a certain height, place the moving mechanism 2 under the gear box 3 along the direction of disassembly of the gear box 3, adjust the positions of the guide rail 21 and the fixing part, and then fix the bottom of the gear box 3 to the connecting piece 23;

[0025] D. The user pushes the gear box 3 along the guide rail 21 to move the gear box 3 to a position where the crane can lift it, and finally the crane lifts out the gear box 3 for repair;

[0026] E. After the gear box 3 is overhauled, the installation process is the opposite of the above-mentioned disassembly process.

Claims

1. A gearbox replacement device, characterized in that: The invention comprises a bracket (1) and a moving mechanism (2) arranged on the bracket (1); the moving mechanism (2) is arranged along the direction of disassembly or installation of a gear box (3); the moving mechanism (2) is detachably connected to the gear box (3); when the gear box (3) and the moving mechanism (2) are in a connected state, the gear box (3) can be moved by the moving mechanism (2).

2. The gearbox replacement device according to claim 1, characterized in that: The moving mechanism (2) comprises a guide rail (21) and a fixed portion that can move along the guide rail (21); the gear box (3) can be mounted on the fixed portion and can move along the guide rail (21) with the aid of the fixed portion.

3. The gearbox replacement device according to claim 2, characterized in that: The fixing portion comprises a plurality of rollers (22) capable of moving along the guide rail (21) and a connecting member (23) connected to the plurality of rollers (22), wherein the connecting member (23) is detachably connected to the bottom of the gear box (3).

4. The gear box replacement device according to claim 1, characterized in that: The gear box (3) is detachably connected to the two moving mechanisms (2), and the two moving mechanisms (2) are arranged in parallel.

5. The gearbox replacement device according to claim 4, characterized in that: The two mobile mechanisms (2) are supported on the ground via a plurality of brackets (1); the brackets (1) comprise two support columns (11) with adjustable heights and a connecting rod (12); the two ends of the connecting rod (12) are respectively fixedly connected to the two support columns (11), so that the brackets (1) are arranged in an H shape.

6. The gear box replacement device according to claim 1, characterized in that: The moving mechanism (2) is provided with a stop mechanism (4) for preventing the gear box (3) from detaching from the moving mechanism (2).

7. The gear box replacement device according to claim 6, characterized in that: The stop mechanism (4) is arranged at both ends of the moving mechanism (2).

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