A quick-change upper loading structure of a smelting furnace and a loader
By adding a quick-change telescopic frame between the loader's bucket and the quick-change bracket, and using a telescopic cylinder to drive the slide bar, the problem of the loader being unable to enter the depth of the smelting furnace for unloading was solved, improving operating efficiency and enhancing structural strength.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO LOVOL EXCAVATOR
- Filing Date
- 2025-07-21
- Publication Date
- 2026-07-17
Smart Images
Figure CN224514291U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of loader technology, and in particular to a quick-change feeding structure for a smelting furnace and a loader. Background Technology
[0002] In road construction, especially on high-grade highways, loaders are used for tasks such as filling and excavating roadbeds, and collecting and loading asphalt mixtures and cement concrete materials. They can also be used for pushing and transporting soil, leveling ground, and towing other machinery. Currently, the working device of a loader typically consists of a linkage mechanism, a quick-change bracket, and a bucket that are hinged together and then connected to the loader vehicle. The bucket is connected to the movable end of the quick-change bracket, and one end of the linkage mechanism is connected to the vehicle, while the other end is connected to the movable end of the quick-change bracket. The linkage mechanism drives the bucket to rotate for unloading through the movable end of the quick-change bracket.
[0003] When loading materials into a smelting furnace at a smelting plant, the small inlet, large internal space, and high temperature of the furnace limit the loader's ability to extend the bucket into the furnace's base. This is because, firstly, the hydraulic quick-change mechanism cannot adapt to the high-temperature environment of the furnace, and the high temperature inside the furnace will damage the hydraulic structure, leaving the linkage mechanism only outside the furnace inlet; secondly, the large range of motion of the linkage mechanism also makes it inconvenient to enter the smaller furnace inlet. Therefore, the existing loader bucket can only reach the furnace's loading port and cannot unload materials into the deeper part of the furnace, severely affecting operational efficiency. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a quick-change feeding structure and loader for a smelting furnace, which can deliver the bucket to different depths of the smelting furnace for unloading.
[0005] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0006] In a first aspect, a quick-change feeding structure for a smelting furnace includes a quick-change telescopic frame and a bucket. The quick-change telescopic frame has a quick-change hanging plate at its rear end, which is fixedly connected to the movable end of a quick-change bracket. The front end of the quick-change telescopic frame is hinged to the bucket. The bucket also has a tie rod ear plate at its rear side, which has an elongated hole. The quick-change telescopic frame has a slide rail, and a slide rod is slidably installed in the slide rail. The rear end of the slide rod is connected to the rear end of the quick-change telescopic frame through a telescopic hydraulic cylinder. The tie rod ear plate is hinged to the front end of the slide rod through the elongated hole.
[0007] As a further implementation, the tie rod lug is located at the middle of the rear side of the bucket, and bucket lugs are also provided on both sides of the tie rod lug.
[0008] As a further implementation, the main body of the quick-change telescopic frame is a slide, which is a long strip-shaped structure. The front two sides of the slide are provided with boom plates, which are hinged to the bucket ear plates of the bucket.
[0009] As a further implementation, two sets of limiting plates are provided at the middle position of the top of the carriage. The limiting plates extend along the length of the carriage and their rear ends are flush with the rear end of the carriage. The two sets of limiting plates form the slide rail.
[0010] As a further implementation, the rear end of the carriage is vertically connected to a mounting plate along the width direction, and the front side of the mounting plate is perpendicular to and fixedly connected to the limiting plate.
[0011] As a further implementation, the front side of the mounting plate is provided with a hinge seat, which is located between two sets of limiting plates. One end of the telescopic cylinder is hinged to the hinge seat, and the other end is hinged to the slide rod.
[0012] As a further implementation, the inner side of the limiting plate is provided with a sliding groove, and the two sides of the sliding rod slide in cooperation with the sliding groove through the limiting structure.
[0013] As a further implementation, the length of the slide bar is greater than half the length of the quick-change telescopic frame.
[0014] As a further implementation, multiple sets of first reinforcing plates are provided between the limiting plate and the top surface of the carriage; multiple sets of second reinforcing plates are provided between the mounting plate and the top surface of the carriage.
[0015] Secondly, a loader equipped with a quick-change feeding structure for a smelting furnace as described above.
[0016] The beneficial effects of this utility model are as follows:
[0017] 1. This utility model adds a quick-change telescopic frame of a set length between the bucket assembly and the quick-change bracket, so that the loader can drive the bucket into the feeding port of the smelting furnace through the quick-change telescopic frame. The front end of the quick-change telescopic frame can extend into the feeding port to send the bucket to the depth of the smelting furnace. By changing the length of the quick-change telescopic frame, the bucket can be sent to different depths of the smelting furnace for unloading.
[0018] 2. The sliding joint of the front end of the slide rod and the elongated hole of the pull rod ear plate of this utility model are slidably engaged, and the slide plate slides laterally in the slide rail, which can smoothly realize the switching between the loading and unloading states of the bucket.
[0019] 3. The mounting plate and the top surface of the slide are welded together by a limiting plate and a reinforcing plate, and the limiting plate and the top surface of the slide are welded together by a reinforcing plate, which improves the overall structural length of the quick-change telescopic frame. Attached Figure Description
[0020] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.
[0021] Figure 1 This is a schematic diagram of the quick-change feeding structure of the smelting furnace in an embodiment of this utility model;
[0022] Figure 2 This is a schematic diagram of the bucket assembly in an embodiment of the present invention;
[0023] Figure 3 This is a structural schematic diagram of the quick-change telescopic frame in an embodiment of this utility model;
[0024] Figure 4 This is a diagram showing the status of an existing loader during the loading of materials into a smelting furnace.
[0025] The diagram exaggerates the spacing or dimensions between parts to show their positions; the diagram is for illustrative purposes only.
[0026] Among them: 1. Bucket assembly, 1-1. Bucket lug plate, 1-2. Tie rod lug plate; 3. Telescopic cylinder, 4. Loader, 5. Smelting furnace; 2. Quick-change telescopic frame, 2-1. Boom plate, 2-2. Slide rod, 2-3. Slide frame, 2-4. Quick-change hanging plate, 2-5. Limiting plate, 2-6. Hinge seat, 2-7. First reinforcing plate, 2-8. Mounting plate. Detailed Implementation
[0027] It should be noted that the following detailed description is illustrative and intended to provide further explanation of the present invention. Unless otherwise specified, all technical and scientific terms used in this invention have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains.
[0028] like Figure 4As shown, the bucket of the existing loader 4 is connected to the movable end of the quick-change bracket, specifically through a quick-change mounting plate. One end of the linkage mechanism is connected to the vehicle, and the other end is connected to the movable end of the quick-change bracket. The linkage mechanism drives the bucket to rotate for unloading through the movable end of the quick-change bracket. However, when using the existing loader 4 for loading smelting furnaces in a smelting plant, the loader 4 cannot drive the bucket to extend into the root of the smelting furnace 5 due to limitations such as the small feed inlet, large internal space, and high temperature. This is because, firstly, the hydraulic quick-change structure cannot adapt to the high-temperature environment inside the smelting furnace 5, and the high temperature inside the furnace will damage the hydraulic structure, so the linkage mechanism can only remain outside the feed inlet of the smelting furnace; secondly, the large vertical movement space of the linkage mechanism also makes it inconvenient to enter the small feed inlet of the smelting furnace. Therefore, the existing loader bucket can only be sent to the feed inlet of the smelting furnace and cannot be further unloaded into the depth of the smelting furnace, which seriously affects the operating efficiency.
[0029] Example 1
[0030] In a typical embodiment of this utility model, refer to Figures 1-3 As shown, a quick-change feeding structure for a smelting furnace includes a quick-change telescopic frame 2 and a bucket. The quick-change telescopic frame 2 has a quick-change hanging plate 2-4 at its rear end, which is fixedly connected to the movable end of the quick-change bracket. The front end of the quick-change telescopic frame 2 is hinged to the bucket. The bucket also has a pull rod ear plate 1-2 at its rear side, which has an elongated hole. The quick-change telescopic frame 2 has a slide rail, and a slide rod 2-2 is slidably arranged in the slide rail. The rear end of the slide rod 2-2 is connected to the rear end of the quick-change telescopic frame 2 through a telescopic cylinder 3. The pull rod ear plate 1-2 is hinged to the front end of the slide rod 2-2 through the elongated hole.
[0031] In this embodiment, a quick-change telescopic frame 2 of a set length is added between the bucket assembly 1 and the quick-change bracket. This allows the loader to drive the bucket into the feeding port of the smelting furnace 5 through the quick-change telescopic frame 2. The front end of the quick-change telescopic frame 2 can extend into the feeding port of the smelting furnace and send the bucket to the depth of the smelting furnace 5. By changing the length of the quick-change telescopic frame, the bucket can be sent to different depths of the smelting furnace 5 for unloading.
[0032] like Figure 2 As shown, the bucket assembly 1 includes a bucket, and a bucket lug plate 1-1 and a tie rod lug plate 1-2 are provided on the rear side of the bucket. One set of tie rod lug plates 1-2 is provided and is located in the middle of the rear side of the bucket. Two sets of bucket lug plates 1-1 are provided and are located on both sides of the tie rod lug plates 1-2. The tie rod lug plates 1-2 are provided with elongated holes, and the bucket lug plates 1-1 are provided with hinge holes.
[0033] like Figure 3As shown, the main body of the quick-change telescopic frame 2 is a slide 2-3. The slide 2-3 is a long strip-shaped structure with a rectangular shape. The two sides of the front end of the slide 2-3 are provided with boom plates 2-1. The front end of the boom plate 2-1 extends out of the front end of the slide 2-3 and is provided with a hinge hole. The boom plate 2-1 is connected to the hinge hole of the bucket ear plate 1-1 and a pin is installed to realize the hinge connection between the bucket and the front end of the slide 2-3.
[0034] like Figure 3 As shown, two sets of limiting plates 2-5 are provided at the middle of the top of the slide 2-3. The two sets of limiting plates 2-5 are welded perpendicularly to the slide 2-3, and the limiting plates 2-5 extend along the length direction of the slide 2-3. That is, the limiting plates 2-5 and the length direction of the slide 2-3 are in the same direction. A slide rail is formed between the two sets of limiting plates 2-5 for the sliding rod 2-2 to slide. The sliding rod 2-2 can slide between the two sets of limiting plates 2-5 along the length direction of the slide 2-3, and the front end of the sliding rod 2-2 can extend out of the front end of the slide 2-3.
[0035] Furthermore, the front end of the slide rod 2-2 is provided with a connecting part, which can be configured as two sets of connecting arms. The distance between the two sets of connecting arms is greater than the thickness of the pull rod ear plate 1-2. The connecting arms are provided with through holes. The two sets of connecting arms extend to both sides of the pull rod ear plate 1-2 and use pins to cooperate with the through holes and elongated holes to realize the movable connection between the pull rod ear plate 1-2 and the front end of the slide rod 2-2.
[0036] In this embodiment, the quick-change telescopic frame 2 is hinged to the bucket ear plate 1-1 and the tie rod ear plate 1-2 on the rear side of the bucket via the boom plate 2-1 and the front end of the slide rod 2-2, respectively. When the slide rod 2-2 extends forward within the slide rail formed by the two sets of limiting plates 2-5, it can drive the bucket to flip and realize unloading.
[0037] It is understood that the inner sides of the two sets of limiting plates 2-5 are provided with sliding grooves, and the two sides of the sliding rod 2-2 are slidably engaged with the sliding grooves through the limiting structure. The limiting structure can be a protruding structure, so that the sliding rod 2-2 can slide along the length direction of the limiting plates 2-5 inside the two sets of limiting plates.
[0038] like Figure 3 As shown, the rear ends of the two sets of limiting plates 2-5 are flush with the rear ends of the slide 2-3. The rear ends of the slide 2-3 are vertically connected to the mounting plate 2-8 along the width direction. The front side of the mounting plate 2-8 is perpendicular to the limiting plate 2-5 and welded together. The rear ends of the limiting plates are fixed to the mounting plate 2-8 by welding, which improves the connection strength between the mounting plate and the slide 2-3.
[0039] The mounting plate 2-8 has a hinge seat 2-6 on its front side. The hinge seat 2-6 is located between two sets of limiting plates 2-5. The telescopic cylinder 3 is also located within the two sets of limiting plates 2-5, with one end hinged to the hinge seat 2-6 and the other end hinged to the rear end of the slide rod 2-2. Figure 1As shown, the cylinder rod of the telescopic cylinder 3 extends towards the rear end, so the end of the cylinder rod of the telescopic cylinder 3 is hinged to the hinge seat 2-6. When the cylinder rod extends, it can push the slide rod 2-2 to slide within the slide rail, so that the front end of the slide rod 2-2 extends beyond the front end of the slide frame 2-3, and then drives the bucket to tip over to achieve unloading through the pull rod ear plate 1-2.
[0040] Since the slide bar 2-2 can only extend and retract within the limiting plate 2-5, the front end of the slide bar 2-2 slides in conjunction with the elongated hole of the ear plate of the pull rod 1-2, which can smoothly realize the switching between the loading and unloading states of the bucket.
[0041] like Figure 3 As shown, the mounting plate 2-8 is provided with two sets of quick-change hanging plates 2-4 on the side away from the limiting plate 2-5. The quick-change hanging plates 2-4 are existing technology and are used to connect with the movable end of the quick-change bracket.
[0042] To further improve the overall structural strength of the quick-change telescopic frame 2, multiple sets of first reinforcing plates 2-7 are arranged side-by-side along the length of the limiting plate 2-5 between the top surface of the limiting plate 2-5 and the slide 2-3; the first reinforcing plates 2-7 are welded between the outer side of the limiting plate 2-5 and the top surface of the slide 2-3. Simultaneously, multiple sets of second reinforcing plates are welded between the mounting plate and the top surface of the slide 2-3. The overall structural strength of the quick-change telescopic frame is improved through the installation of these reinforcing plates.
[0043] In this embodiment, the length of the slide bar is greater than half the length of the quick-change telescopic frame, so that when the quick-change feeding structure of the smelting furnace in this embodiment is installed, the loader can drive the quick-change telescopic frame to extend into the feed port of the smelting furnace 5 by at least half the length of the quick-change telescopic frame, so as to unload the material into the depth of the smelting furnace.
[0044] In other examples, quick-change telescopic frames 2 of different sizes can be replaced according to the depth of the smelting furnace 5.
[0045] Example 2
[0046] In a typical embodiment of this utility model, refer to Figures 1-3 As shown, a loader is equipped with the quick-change feeding structure for the smelting furnace described in Embodiment 1. The loader has a quick-change bracket and a linkage mechanism mounted on its entire vehicle. One end of the linkage mechanism is mounted on the vehicle, and the other end is connected to the movable end of the quick-change bracket. The rear end of the quick-change telescopic bracket is fixedly connected to the movable end of the quick-change bracket via a quick-change mounting plate, and the front end of the quick-change telescopic bracket is hinged to the bucket. By adding a quick-change telescopic bracket of a predetermined length between the quick-change bracket and the bucket assembly 1, the quick-change telescopic bracket 2 is long and small in size. Its compact structure allows it to pass smoothly through the narrow feed inlet of the smelting furnace into the furnace cavity, enabling unloading operations within the large internal space of the smelting furnace.
[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A quick-change feeding structure for a smelting furnace, characterized in that, The device includes a quick-change telescopic frame and a bucket. The quick-change telescopic frame has a quick-change hanging plate at its rear end, which is fixedly connected to the movable end of the quick-change bracket. The front end of the quick-change telescopic frame is hinged to the bucket. The bucket also has a tie rod lug plate at its rear side, which has an elongated hole. The quick-change telescopic frame has a slide rail, and a slide rod is slidably installed in the slide rail. The rear end of the slide rod is connected to the rear end of the quick-change telescopic frame through a telescopic cylinder. The tie rod lug plate is hinged to the front end of the slide rod through the elongated hole.
2. The quick-change feeding structure for a smelting furnace according to claim 1, characterized in that, The tie rod lug is located in the middle of the rear side of the bucket, and bucket lugs are also provided on both sides of the tie rod lug.
3. A quick change upper loading structure for a smelting furnace according to claim 2, wherein The main body of the quick-change telescopic frame is a slide, which is a long strip-shaped structure. The front two sides of the slide are provided with boom plates, which are hinged to the bucket ear plates of the bucket.
4. The quick change upper structure of a smelting furnace according to claim 3, characterized in that, Two sets of limiting plates are provided at the middle of the top of the slide. The limiting plates extend along the length of the slide and their rear ends are flush with the rear end of the slide. The slide rail is formed between the two sets of limiting plates.
5. A quick change upper structure for a smelting furnace according to claim 4, wherein The rear end of the carriage is vertically connected to the mounting plate along the width direction, and the front side of the mounting plate is perpendicular to and fixedly connected to the limiting plate.
6. A quick change upper structure for a smelting furnace according to claim 5, wherein The mounting plate has a hinge seat on its front side, which is located between two sets of limiting plates. One end of the telescopic cylinder is hinged to the hinge seat, and the other end is hinged to the slide rod.
7. A quick change upper structure for a smelting furnace according to claim 4, wherein The inner side of the limiting plate is provided with a sliding groove, and the two sides of the sliding rod slide in cooperation with the sliding groove through the limiting structure.
8. A quick change upper structure for a smelting furnace according to claim 7, wherein The length of the slide bar is greater than half the length of the quick-change telescopic frame.
9. The quick change upper structure of a smelting furnace according to claim 5, wherein, Multiple sets of first reinforcing plates are provided between the limiting plate and the top surface of the carriage; multiple sets of second reinforcing plates are provided between the mounting plate and the top surface of the carriage.
10. A loader, characterized in that, The loader is equipped with a quick-change feeding structure for the smelting furnace as described in any one of claims 1-9.