A quick change device for an electric locomotive reduction gear

Abstract

This utility model relates to a quick-change device for a locomotive reducer, comprising a support platform, a mounting frame, a workpiece placement platform, a lifting mechanism, and a position adjustment mechanism. The support platform is connected to the mounting frame via the lifting mechanism, which drives the mounting frame to move up and down relative to the support platform. The position adjustment mechanism includes a slide rail, a sliding block, a lead screw, and a ball nut. The slide rail is fixedly mounted on the mounting frame, the sliding block is slidably connected to the slide rail, and the sliding block is fixedly connected to the workpiece placement platform. The lead screw is mounted on the mounting frame, and the ball nut is screwed onto the lead screw and fixedly connected to the workpiece placement platform.

Description

Technical Field

[0001] This utility model relates to the field of speed reducer replacement and maintenance technology, specifically to a quick replacement device for locomotive speed reducers. Background Technology

[0002] The coking company of the ironmaking plant operates multiple dry quenching coke units. During each scheduled maintenance shutdown, the gearboxes of the locomotives associated with these units require replacement and inspection. The gearboxes are typically installed at the bottom of the locomotive, secured with bearings and bolts, and require the entire gearbox to be inserted into the locomotive's mounting axle, demanding high installation precision.

[0003] When replacing the speed reducer, the limited space under the locomotive makes it difficult for conventional lifting equipment such as truck cranes to enter the site. Furthermore, to ensure installation accuracy, multiple guide chains must be used for alignment and assembly. This method has significant drawbacks: First, the confined space restricts the movement of workers, increasing the risk of equipment collisions or personnel injuries. Second, relying on multiple guide chains for coordinated operation is not only cumbersome but also requires substantial manpower and time, resulting in low overall construction efficiency. Third, the guide chain layout cannot achieve direct force distribution, and the need for multiple people to pull simultaneously easily leads to uneven force distribution, causing guide chain damage and potentially resulting in lifting accidents, posing a serious safety hazard to on-site operations. Utility Model Content

[0004] In view of the above-mentioned deficiencies of the prior art, the technical problem to be solved by this utility model is to provide a quick replacement device for locomotive reducers, which can improve the replacement efficiency of reducers and ensure the safety of workers during operation.

[0005] To achieve the above objectives, this utility model provides a quick-change device for a locomotive reducer, comprising a support platform, a mounting frame, a workpiece placement platform, a lifting mechanism, and a position adjustment mechanism. The support platform is connected to the mounting frame via the lifting mechanism, which drives the mounting frame to move up and down relative to the support platform. The position adjustment mechanism includes a slide rail, a sliding block, a lead screw, and a ball nut. The slide rail is fixedly mounted on the mounting frame, the sliding block is slidably connected to the slide rail, and the sliding block is fixedly connected to the workpiece placement platform. The lead screw is mounted on the mounting frame, and the ball nut is screwed onto the lead screw and fixedly connected to the workpiece placement platform.

[0006] Furthermore, the length extension direction of the slide is parallel to the length extension direction of the lead screw.

[0007] Furthermore, the bottom of the support platform is provided with multiple casters.

[0008] Furthermore, the top of the workpiece placement platform is provided with two workpiece baffles for fixing the reducer. The workpiece baffles are fixed to the workpiece placement platform by bolts. The workpiece placement platform has multiple mounting holes, and the workpiece baffles have multiple mounting slots. The bolts pass through the mounting slots on the workpiece baffles and are fixed in the mounting holes of the workpiece placement platform.

[0009] Furthermore, the lifting mechanism includes a hydraulic cylinder and a piston rod. The hydraulic cylinder is fixedly mounted on the support platform, and the bottom end of the piston rod is connected to the hydraulic cylinder, while the top end is fixedly connected to the mounting frame.

[0010] Furthermore, the position adjustment mechanism also includes a motor, which is connected to a lead screw drive.

[0011] Furthermore, it also includes a controller, with the hydraulic cylinder and motor electrically connected to the controller respectively.

[0012] As described above, the quick-change device for locomotive reducers disclosed in this utility model has the following beneficial effects: By setting up a support platform, mounting frame, workpiece placement platform, lifting mechanism, and position adjustment mechanism, the reducer can be removed from the locomotive's mounting axle and installed onto the locomotive's mounting axle. This allows for precise alignment of the reducer in both height and plane, even in situations where the construction area is limited but installation accuracy is required. This enables efficient and safe replacement or inspection of the locomotive's reducer, improving maintenance efficiency, shortening construction time, reducing maintenance personnel input, saving replacement costs, and reducing hazardous factors during operation. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the quick-change device in this utility model.

[0014] Figure 2 This is a side view of the quick-change device in this utility model.

[0015] Figure 3 This is a front view of the quick-change device in this utility model.

[0016] Figure 4 This is a top view of the quick-change device in this utility model.

[0017] Explanation of icon numbers 1. Support platform, 2. Mounting frame, 3. Workpiece placement platform, 4. Hydraulic cylinder, 5. Piston rod, 6. Slide rail, 7. Moving slider, 8. Lead screw, 9. Moving wheel, 10. Workpiece baffle. Detailed Implementation

[0018] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate this utility model and are not intended to limit it.

[0019] In the description of this utility model, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0022] See Figures 1 to 4This utility model provides a quick-change device for a locomotive reducer, including a support platform 1, a mounting frame 2, a workpiece placement platform 3, a lifting mechanism, and a position adjustment mechanism. The support platform 1 is connected to the mounting frame 2 via the lifting mechanism, which drives the mounting frame 2 to move up and down relative to the support platform. The position adjustment mechanism includes a slide rail 6, a sliding block 7, a lead screw 8, and a ball nut. The slide rail 6 is fixedly mounted on the mounting frame 2, and the sliding block 7 is slidably connected to the slide rail 6 and fixedly connected to the workpiece placement platform 3. Preferably, there are two slide rails 6 and two sliding blocks 7. The two slide rails 6 are fixedly mounted on the top of the mounting frame 2, and their length extension directions are parallel to the front-rear extension direction of the workpiece placement platform 3. The two slide rails 6 are located on the left and right sides of the mounting frame 2, respectively. The two sliding blocks 7 are slidably connected to the two slide rails 6, and both sliding blocks 7 are fixedly connected to the workpiece. The bottom of the placement platform 3 is fixedly connected; the lead screw 8 is set on the mounting frame 2, and the ball nut is screwed onto the lead screw 8 and fixedly connected to the workpiece placement platform 3. Preferably, the position adjustment mechanism also includes a mounting slider, the ball nut is screwed onto the lead screw 8 and installed inside the mounting slider, and the mounting slider is fixedly connected to the bottom of the workpiece placement platform 3. Specifically, the mounting frame 2 is located above the support platform 1, and the workpiece placement platform 3 is located above the mounting frame 2. The support platform 1, the mounting frame 2, and the workpiece placement platform 3 are all rectangular. The length dimension of the workpiece placement platform 3 in the left-right extension direction is set to 1000mm, and the width dimension of the workpiece placement platform 3 in the front-back extension direction is set to 800mm. When the lifting mechanism is raised to the highest position, the distance between the workpiece placement platform 3 and the ground is set to 626.94mm. When the lifting mechanism is lowered to the lowest position, the distance between the mounting frame 2 and the support platform 1 is set to 200mm.

[0023] The basic working principle of the quick-change device for locomotive reducers involved in this utility model is as follows: A support platform 1 supports the mounting frame 2, workpiece placement platform 3, lifting mechanism, position adjustment mechanism, and reducer. When disassembling the reducer, the quick-change device is moved to the bottom of the locomotive. By activating the lifting mechanism, the mounting frame 2 is moved upwards, which in turn moves the workpiece placement platform 3 upwards until it abuts against the bottom of the locomotive's reducer. At this point, by activating the position adjustment mechanism, the lead screw 8 is rotated, causing the ball nut to move along the length of the lead screw 8, thereby moving the workpiece placement platform 3 and the reducer along the length of the lead screw 8. The length extension direction of the lead screw 8 is the same as the front-to-back direction of the mounting frame 2. At the same time, by setting the slide rail 6 and moving the slider 7, the workpiece placement platform 3 can be moved more easily, thereby adjusting the position of the workpiece placement platform 3 relative to the mounting frame 2, so that the reducer can be removed from the mounting shaft. When installing the reducer, place the reducer on the workpiece placement platform 3, and move the reducer and quick change device to the bottom of the locomotive. Start the lifting mechanism to drive the mounting frame 2 and the workpiece placement platform 3 to move up and down until the reducer moves to the mounting shaft. When the reducer is at the installation height, rotate the lead screw 8 to drive the reducer to move onto the mounting shaft of the locomotive.

[0024] See Figures 1 to 4 The present invention will be further described below with reference to a specific embodiment: In this embodiment, see Figure 1 , Figure 2 , Figure 3 As a preferred design, the length extension direction of the slide 6 is parallel to the length extension direction of the lead screw 8, which can ensure the movement accuracy of the workpiece placement platform 3 relative to the mounting frame 2.

[0025] In this embodiment, see Figure 1 As a preferred design, the bottom of the support platform 1 is equipped with multiple casters 9, which improves the convenience of movement and allows movement without the need for handling tools, simplifying the operation process. Preferably, the support platform 1 is also equipped with multiple fixed anchors, each including a connecting rod and a support column. One end of the connecting rod is hinged to the top of the support platform 1, and the other end has a threaded hole. The outer circumference of the support column is provided with threads that mate with the threaded hole, and the support column is screwed into the threaded hole of the connecting rod. In use, when the quick-change device moves to the bottom of the reducer, the connecting rod is rotated to move the end of the support column connected to it out of the support platform 1. The support column is then rotated to adjust the distance between the bottom end of the support column and the ground, so that the bottom end of the support column rests against the ground, thereby fixing the support platform 1 in place and preventing it from tipping over. When retracting, the support column is rotated to move the bottom end of the support column away from the ground, and the connecting rod is rotated to move the end of the support column connected to it back onto the support platform 1.

[0026] In this embodiment, see Figure 1 , Figure 2 , Figure 3 , Figure 4 As a preferred design, the top of the workpiece placement platform 3 is provided with two workpiece baffles 10 for fixing the reducer. The workpiece baffles 10 are fixed to the workpiece placement platform 3 by bolts. The workpiece placement platform 3 has multiple mounting holes, and the workpiece baffles 10 have multiple mounting slots. The bolts pass through the mounting slots on the workpiece baffles 10 and are fixed in the mounting holes of the workpiece placement platform 3. Preferably, the two workpiece baffles 10 are arranged opposite to each other, and the reducer is located between the two workpiece baffles 10. In use, the distance between the two workpiece baffles 10 can be flexibly adjusted according to the actual size of the reducer by adjusting the position of the bolts in the mounting slots, thereby enabling the fixing of various models of reducers and improving the applicability of the quick change device.

[0027] In this embodiment, see Figure 1 , Figure 2 , Figure 3 As a preferred design, the lifting mechanism includes a hydraulic cylinder 4 and a piston rod 5. The hydraulic cylinder 4 is fixedly mounted on the support platform 1, and the bottom end of the piston rod 5 is connected to the hydraulic cylinder 4, while the top end is fixedly connected to the mounting frame 2. Preferably, four hydraulic cylinders 4 and four piston rods 5 are provided. The four hydraulic cylinders 4 are fixedly mounted on the top of the support platform 1, and the bottom ends of the four piston rods 5 are connected to the four hydraulic cylinders 4 respectively. The top ends of the four piston rods 5 are fixedly connected to the bottom of the mounting frame 2 respectively. In use, when the hydraulic cylinder 4 is activated, the piston rod 5 can drive the mounting frame 2 to move upward away from the hydraulic cylinder 4 or downward towards the hydraulic cylinder 4, thereby driving the workpiece placement platform 3 to move upward or downward.

[0028] In this embodiment, see Figure 1 As a preferred design, the position adjustment mechanism also includes a motor, which is connected to the lead screw 8 for transmission.

[0029] In this embodiment, see Figure 1 As a preferred design, it also includes a controller. The hydraulic cylinder 4 and the motor are electrically connected to the controller. By setting the controller, the start and stop of the hydraulic cylinder 4 and the motor can be controlled separately, improving the convenience of operation.

[0030] As can be seen from the above, the quick-change device for locomotive reducers of this utility model has the following beneficial effects: By setting up a support platform 1, a mounting frame 2, a workpiece placement platform 3, a lifting mechanism, and a position adjustment mechanism, the reducer can be removed from the mounting shaft of the locomotive and installed onto the mounting shaft of the locomotive. This allows for precise alignment of the reducer in both height and plane, even when the construction area is limited but installation accuracy needs to be ensured. This enables efficient and safe replacement or inspection of the locomotive reducer, improving maintenance efficiency, shortening construction time, reducing maintenance personnel input, saving replacement costs, and reducing hazardous factors during operation.

[0031] In summary, this utility model effectively overcomes the various shortcomings of the prior art and has high industrial application value.

[0032] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A quick-change device for a locomotive reducer, characterized in that: The system includes a support platform (1), a mounting frame (2), a workpiece placement platform (3), a lifting mechanism, and a position adjustment mechanism. The support platform (1) is connected to the mounting frame (2) via the lifting mechanism. The lifting mechanism is used to drive the mounting frame (2) to move up and down relative to the support platform. The position adjustment mechanism includes a slide rail (6), a sliding block (7), a lead screw (8), and a ball nut. The slide rail (6) is fixedly installed on the mounting frame (2). The sliding block (7) is slidably connected to the slide rail (6) and is fixedly connected to the workpiece placement platform (3). The lead screw (8) is installed on the mounting frame (2). The ball nut is screwed onto the lead screw (8) and is fixedly connected to the workpiece placement platform (3).

2. The quick-change device for a locomotive reducer according to claim 1, characterized in that: The length extension direction of the slide (6) is parallel to the length extension direction of the lead screw (8).

3. The quick-change device for a locomotive reducer according to claim 1, characterized in that: The bottom of the support platform (1) is provided with multiple casters (9).

4. The quick-change device for a locomotive reducer according to claim 1, characterized in that: The top of the workpiece placement platform (3) is provided with two workpiece baffles (10) for fixing the reducer. The workpiece baffles (10) are fixed to the workpiece placement platform (3) by bolts. The workpiece placement platform (3) has multiple mounting holes and the workpiece baffles (10) have multiple mounting slots. The bolts pass through the mounting slots on the workpiece baffles (10) and are fixed in the mounting holes of the workpiece placement platform (3).

5. The quick-change device for a locomotive reducer according to claim 1, characterized in that: The lifting mechanism includes a hydraulic cylinder (4) and a piston rod (5). The hydraulic cylinder (4) is fixedly mounted on the support platform (1). The bottom end of the piston rod (5) is connected to the hydraulic cylinder (4), and the top end is fixedly connected to the mounting frame (2).

6. The quick-change device for a locomotive reducer according to claim 5, characterized in that: The position adjustment mechanism also includes a motor, which is connected to the lead screw (8) via a transmission.

7. The quick-change device for a locomotive reducer according to claim 6, characterized in that: It also includes a controller, and the hydraulic cylinder (4) and the motor are electrically connected to the controller.

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