Rail switching device for conveying foundry returns

Abstract

The utility model belongs to the technical field of foundry return conveying, and provides a track switching device for foundry return conveying, which comprises a top frame, a pair of front and rear track frames are arranged in the top frame, and a pair of left and right switching tracks are arranged between the front and rear track frames. A conveying rail is fixed to the bottom of the top frame and located at the front end of the front rail frame, crown blocks capable of moving leftwards and rightwards are arranged in the front rail frame and the rear rail frame, positioning mechanisms for locking the crown blocks are arranged on the left side and the right side of the top frame and correspond to the crown blocks, and the rail switching device further comprises a plurality of rail cranes. According to the device, on one hand, ordered dispatching and operation of multiple rail cranes can be achieved, the foundry return conveying efficiency is improved, on the other hand, the arc-shaped plate can be driven to rotate through the positioning air cylinder, then the rotating shaft and the positioning block are driven to rotate, close fit of the positioning block and the kidney-shaped groove is achieved, the crown blocks can be accurately positioned, and the foundry return conveying efficiency is improved. And the stable transition of the rail crane between different rails is ensured.

Description

Technical Field

[0001] This utility model belongs to the field of recycled material conveying technology, and in particular relates to a track switching device for recycled material conveying. Background Technology

[0002] In industrial production processes such as steel smelting and casting, the transportation of recycled materials is a crucial step. Recycled materials typically need to be transported from the collection area to processing equipment such as furnaces for further processing.

[0003] Traditional methods of conveying recyclable materials have many problems. For example, the track switching method is not flexible and efficient enough, making it difficult to achieve orderly scheduling and workstation changes for multiple track-mounted cranes, which can easily lead to crane collisions and affect production safety and efficiency. In addition, the crane positioning is not precise enough during the recyclable material conveying process, and positional deviations may occur during track operation, resulting in poor material conveying stability and failing to meet the high precision requirements of industrial production for recyclable material conveying. Utility Model Content

[0004] In view of the above problems, the purpose of this utility model is to provide a track switching device for conveying remelted material, which aims to solve the problems of low efficiency, poor stability and inflexible track switching of existing track switching devices for conveying remelted material.

[0005] The present invention adopts the following technical solution:

[0006] The track switching device for conveying recycle material includes a top frame, which contains a pair of front and rear track frames and a pair of left and right switching tracks between the front and rear track frames. A conveying track is fixed at the bottom of the top frame and at the front end of the front track frame. Each of the front and rear track frames is equipped with a crane that can move left and right. The top frame has a positioning mechanism for locking the crane on both sides corresponding to the crane. The track switching device also includes multiple track cranes, each equipped with a liftable bucket.

[0007] Furthermore, the overhead crane includes a pair of suspended rails with traveling components mounted on the rail frame. The spacing between the suspended rails is the same as the spacing between the switching rails, and the transport rail is aligned with one of the switching rails.

[0008] Furthermore, a waiting track is fixed at the bottom of the top frame and at the front end of the front track frame, and the distance between the waiting track and the conveying track is the same as the distance between the hanging rails.

[0009] Furthermore, the positioning mechanism includes a positioning frame, the side wall of the overhead crane has an oval groove, the positioning frame is rotatably equipped with a rotating shaft, one end of the rotating shaft is provided with a pair of spaced positioning blocks, the other end is fixed with an arc plate, the back of the positioning frame is rotatably equipped with a positioning cylinder, and the drive shaft of the positioning cylinder is rotatably connected to the arc plate.

[0010] Furthermore, the length of the positioning block matches the length of the oval groove.

[0011] Furthermore, the rail crane is equipped with a fixed frame, on which a pair of winches are mounted. The wire ropes of the two winches are connected to a common hanger. The bucket is rotatably mounted inside the hanger, and a tilting motor for driving the bucket to tilt is provided on the side wall of the hanger.

[0012] The beneficial effects of this utility model are:

[0013] 1. This device, by setting up a pair of front and rear rail frames, a pair of left and right switching rails, as well as a conveying rail and a waiting rail, can realize the orderly scheduling and operation of multiple rail cranes, thereby improving the efficiency of remelting material conveying.

[0014] 2. The positioning mechanism is ingeniously designed. The positioning cylinder drives the arc plate to rotate, which in turn drives the rotating shaft and positioning block to rotate, achieving a tight fit between the positioning block and the oval groove. This enables precise positioning of the overhead crane and ensures a smooth transition of the rail crane between different tracks. Attached Figure Description

[0015] Figure 1 This utility model provides an overall diagram of a track switching device for conveying recycled materials.

[0016] Figure 2 This is a schematic diagram of the top frame provided by this utility model.

[0017] Figure 3 yes Figure 1 Enlarged view of point A in the middle.

[0018] Figure 4 This is a front view of the positioning mechanism provided by this utility model.

[0019] Figure 5 This is a schematic diagram of the back of the positioning mechanism provided by this utility model.

[0020] Figure 6 This utility model provides a schematic diagram of the hoisting bucket installation. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model patent clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0022] To illustrate the technical solution described in this utility model, specific embodiments are described below.

[0023] For ease of explanation, only the parts relevant to the embodiments of this utility model are shown.

[0024] Combination Figure 1-4 As shown, the track switching device for conveying remelted material includes a top frame 1, within which a pair of front and rear track frames are provided, with the front track frame marked 21 and the rear track frame marked 22. A pair of left and right switching tracks 3 are provided between the front and rear track frames. A conveying track 4 is fixed at the bottom of the top frame 1, located at the front end of the front track frame 21. Each of the front and rear track frames contains a crane that can move left and right. Positioning mechanisms for locking the cranes are provided on both sides of the top frame 1 corresponding to the cranes. The track switching device also includes multiple track cranes 7, each equipped with a liftable bucket 8. Each crane includes a pair of overhead rails 6, with traveling components mounted on the track frames. The spacing between the overhead rails is the same as the spacing between the switching tracks 3, and the conveying track 4 is aligned with one of the switching tracks 3. Additionally, a waiting track 5 is fixed at the bottom of the top frame 1, located at the front end of the front track frame 21. The spacing between the waiting track 5 and the conveying track 4 is the same as the spacing between the overhead rails.

[0025] In this embodiment, three rail cranes are configured on the conveying track. For example... Figure 1 As shown, before using the rail-mounted crane to transport the return material, the two overhead cranes are in their starting positions, and the positioning mechanism on the same side locks them. The left rails of both cranes are aligned with the right switching rail, and the left rail of the front crane is precisely connected to the conveying rail. The first unloaded rail-mounted crane then moves towards the device along the conveying rail. The crane passes sequentially along the left rail and right switching rail of the front crane, finally reaching the left rail of the rear crane. The positioning mechanism releases the lock on the rear crane, which moves one position to the left and is then locked by the positioning mechanism on the same side. The first rail-mounted crane is then transported to the loading position, and its bucket descends to the receiving position to receive the material.

[0026] When the first rail-mounted crane's bucket is in the receiving position, the second empty rail-mounted crane moves towards the unit along the conveyor track. Once the second rail-mounted crane reaches the left track of the preceding overhead crane, the positioning mechanism releases its positioning constraint. Immediately afterwards, the preceding overhead crane moves one position to the left, and the positioning mechanism on the same side locks it. The left track of the preceding overhead crane aligns with the waiting track, and the second rail-mounted crane moves onto the waiting track to wait. Subsequently, the positioning mechanism releases the lock on the preceding overhead crane, which moves one position to the right, and the positioning mechanism on the same side locks the preceding overhead crane again. The third empty rail-mounted crane moves along the conveyor track to the left track of the preceding overhead crane, then the positioning mechanism releases the lock on the preceding overhead crane, which moves one position to the left and is locked again by the positioning mechanism on the same side. At this point, all three rail-mounted cranes are in position, and the first rail-mounted crane's bucket is in the loading operation state.

[0027] Once the bucket of the first rail-mounted crane is full of remelting material, it rises back. The positioning mechanism releases the lock on the rear crane, which moves one position to the right, aligning its left rail with the right switching rail. The positioning mechanism on the same side then repositions the rear crane. The first rail-mounted crane then moves along the right rail of the front crane to the conveyor rail, proceeding towards the remelting material unloading station. Simultaneously, the positioning mechanism releases the rear crane, which moves one position to the left. The positioning mechanism on the same side locks the rear crane, aligning its left and right rails with the two switching rails respectively. The rail-mounted crane on the left rail of the front crane moves along the left switching rail to the left rail of the rear crane, reaching the loading position, and its bucket descends to the receiving position for material loading.

[0028] After the hoist bucket of the rail-mounted crane completes the material receiving operation, the bucket rises. The positioning mechanism releases the lock on the rear overhead crane, which moves one position to the right, and the positioning mechanism on the same side positions it. The rail-mounted crane then sequentially moves via the right switching track and the right track of the front overhead crane to the conveying track, finally proceeding along the conveying track to the remelting material unloading station. The positioning mechanism releases the positioning of the rear overhead crane again, which moves one position to the left and is locked by the positioning mechanism on the same side. Immediately afterwards, the rail-mounted crane on the waiting track moves directly via the left track of the front overhead crane and the left switching track to the left track of the rear overhead crane, and its bucket descends to receive the material.

[0029] As a preferred structure, such as Figure 2-4 The positioning mechanism includes a positioning frame 9, the side wall of the overhead crane has an oval groove 10, the positioning frame 9 is rotatably provided with a rotating shaft 11, one end of the rotating shaft 11 is provided with a pair of spaced positioning blocks 12, and the other end is fixed with an arc plate 13, the back of the positioning frame 9 is rotatably provided with a positioning cylinder 14, and the drive shaft of the positioning cylinder 14 is rotatably connected to the arc plate 13.

[0030] Before the overhead crane moves to its corresponding workstation, the positioning block is in a horizontal position. After the overhead crane reaches the designated workstation, the left positioning block protrudes from the oval groove. Finally, the positioning mechanism positions the overhead crane. That is, the drive shaft of the positioning cylinder pushes the arc-shaped plate to rotate. The rotating shaft rotates accordingly until the pair of positioning blocks on the left and right sides at the other end of the rotating shaft rotate to a vertical position. The length of the positioning block matches the length of the oval groove, forming a tight fit, effectively restricting the left and right movement of the overhead crane within the track frame, ensuring the fixed position of the overhead crane, and providing stable support for the smooth transition of the rail crane.

[0031] As a specific structure, such as Figure 1 , Figure 6The rail crane 7 is equipped with a fixed frame 15, and a pair of winches 16 are provided on the fixed frame 15. The wire ropes 17 on the two winches are connected to a hanger 18. The bucket 8 is rotatably installed inside the hanger 18. A flipping motor 19 for driving the bucket to flip is provided on the side wall of the hanger 18.

[0032] In the above structure, a bucket is rotatably installed inside the hanger. When the bucket reaches the remelting material unloading position, two winches work simultaneously, unwinding the wire rope, lowering the bucket to the unloading position, and starting the tilting motor to tilt the bucket at a certain angle, thus unloading the remelting material. Since the traveling components and rail-mounted crane are existing technologies, they will not be specifically described in this device.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A track switching device for conveying recycled materials, characterized in that: The track switching device for conveying recycle material includes a top frame, which contains a pair of front and rear track frames and a pair of left and right switching tracks between the front and rear track frames. A conveying track is fixed at the bottom of the top frame and at the front end of the front track frame. Each of the front and rear track frames is equipped with a crane that can move left and right. The top frame has a positioning mechanism for locking the crane on both sides corresponding to the crane. The track switching device also includes multiple track cranes, each equipped with a liftable bucket.

2. The track switching device for conveying remelted material as described in claim 1, characterized in that: The overhead crane includes a pair of suspended rails with traveling components mounted on the rail frame. The spacing between the suspended rails is the same as the spacing between the switching rails, and the transport rail is aligned with one of the switching rails.

3. The track switching device for conveying remelted material as described in claim 2, characterized in that: A waiting track is also fixed at the bottom of the top frame and at the front end of the front track frame. The distance between the waiting track and the conveying track is the same as the distance between the hanging rails.

4. The track switching device for conveying remelted material as described in claim 3, characterized in that: The positioning mechanism includes a positioning frame, the side wall of the overhead crane has an oval groove, a rotating shaft is rotatably mounted on the positioning frame, one end of the rotating shaft is provided with a pair of spaced positioning blocks, and the other end is fixed with an arc plate, a positioning cylinder is rotatably mounted on the back of the positioning frame, and the drive shaft of the positioning cylinder is rotatably connected to the arc plate.

5. The track switching device for conveying remelted material as described in claim 4, characterized in that: The length of the positioning block matches the length of the oval groove.

6. The track switching device for conveying remelted material as described in claim 5, characterized in that: The rail crane is equipped with a fixed frame, on which a pair of winches are mounted. The wire ropes of the two winches are connected to a common hanger. The bucket is rotatably mounted inside the hanger, and a tilting motor for driving the bucket to tilt is provided on the side wall of the hanger.

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