Novel annealing furnace trolley

Abstract

The utility model discloses a novel annealing furnace trolley which comprises a trolley body which can enter an annealing furnace from a furnace door of the annealing furnace or move out of the annealing furnace in a using state, and further comprises a heat preservation screen which is arranged on the trolley body and synchronously moves along with movement of the trolley body. When the trolley body enters the annealing furnace, the heat preservation screen is matched with a furnace door of the annealing furnace and used for closing the furnace door, and when the trolley body moves towards the outside of the annealing furnace, the heat preservation screen is moved away from the furnace door and used for opening the furnace door. The door plate and the trolley are fused into a whole, a traditional door plate structure and a driving structure of the door plate are omitted, the manufacturing, debugging and installing period of the furnace door is shortened, space and cost are saved, and the application space of the trolley is wider.

Description

Technical Field

[0001] This utility model relates to a novel annealing furnace trolley, belonging to the technical field of heat treatment equipment. Background Technology

[0002] The traditional industrial trolley-type annealing furnace is mainly composed of a furnace body, furnace door, trolley, fan, mechanical seal, and other auxiliary components. When the material to be processed is placed on the trolley, the trolley moves to the designated position inside the furnace, the furnace door closes, and the annealing furnace begins heat treatment. This is specifically disclosed in Chinese utility model patents with authorization announcement numbers CN222374713U, CN219385269U, and CN212559962U, and Chinese invention patent application publication number CN115109910A. Among these, the furnace door system is a relatively important structural component, with a long manufacturing cycle, numerous parts, and a large space occupation. In particular, the lifting furnace door occupies a large amount of top space, making it impossible to access or even install in some low-ceilinged factories, and the installation and debugging are complicated. Summary of the Invention

[0003] The purpose of this utility model is to provide a new type of annealing furnace trolley, which solves the technical defect of the prior art that the door panel of the annealing furnace needs to be moved up and down to open the furnace door. This requires a drive device to be installed on the top of the annealing furnace to drive the door panel to lift and lower, which makes the annealing furnace occupy a large space in the vertical direction and cannot be used in low-ceilinged factory buildings.

[0004] To solve the above problems, the technical solution adopted by this utility model is: a novel annealing furnace trolley, including a trolley body that can enter or exit the annealing furnace through the furnace door during use. It also includes a heat insulation screen mounted on the trolley body and moving synchronously with the trolley body. When the trolley body enters the annealing furnace, the heat insulation screen cooperates with the furnace door to close it. When the trolley body moves out of the furnace, the heat insulation screen moves away from the furnace door to open it. This utility model, by mounting a heat insulation screen on the trolley body and allowing it to move horizontally with the trolley body, and by using the heat insulation screen to close the furnace door during use, eliminates the need for additional space on the annealing furnace compared to the prior art where the furnace door slides vertically. This utility model can be used in low-ceilinged factory buildings.

[0005] As a further improvement of this utility model, a driving device is also included. The bottom end of the insulation screen is rotatably connected to the trolley body. The driving device is mounted on the trolley body and is used to drive the insulation screen to rotate relative to the trolley body. When the furnace door is closed, the driving device drives the insulation screen to rotate to a vertical position. By rotatably connecting the insulation screen to the trolley body and providing a driving device to drive the insulation screen to rotate, this utility model allows the insulation screen to rotate to an angle with the vertical direction during use, thereby facilitating the loading and unloading of workpieces on the trolley body.

[0006] As a further improvement of this utility model, a support component is fixed horizontally on the trolley body, and the insulation screen is hinged to the support component. This utility model provides a support component to facilitate the rotational connection between the insulation screen and the trolley body.

[0007] As a further improvement of this utility model, a fixing plate is fixed on the trolley body. The width of the fixing plate is equal to the width of the furnace door. The support assembly is fixed on the upper part of the fixing plate. The width of the insulation screen is equal to the width of the fixing plate. The fixing plate and the insulation screen close the furnace door from the upper and lower parts, respectively. This utility model sets a fixing plate on the trolley body, which, together with the insulation screen, closes the furnace door. At the same time, the workpiece to be processed is placed on the trolley body without considering the possible interference with the rotation of the insulation screen, making it more convenient to place the workpiece.

[0008] As a further improvement of this utility model, the driving device is a hydraulic cylinder. The cylinder body is rotatably mounted on the trolley body, and the piston rod of the hydraulic cylinder is rotatably connected to the insulation screen. The extension and retraction of the piston rod of the hydraulic cylinder is used to drive the insulation screen to rotate relative to the trolley body. This utility model drives the insulation screen to rotate by the extension and retraction of the piston rod of the hydraulic cylinder.

[0009] As a further improvement of this invention, an extension frame is fixed to the side of the trolley body facing away from the annealing furnace, and the cylinder body of the hydraulic cylinder is rotatably mounted on this extension frame. This invention, by providing an extension frame on the trolley body, makes the installation of the hydraulic cylinder more convenient.

[0010] As a further improvement of this utility model, a base is fixed on the extension frame, the piston rod of the hydraulic cylinder is rotatably connected to the base, and a connecting seat is fixed on the insulation screen, with the free end of the piston rod of the hydraulic cylinder rotatably connected to the connecting seat. This utility model, by providing the base and connecting seat, facilitates the rotatable connection between the hydraulic cylinder and the extension frame and the insulation screen.

[0011] As a further improvement of this utility model, insulation cotton is provided inside the insulation screen and along its edges to enhance the sealing and insulation performance between the insulation screen and the furnace door during use. This utility model, by incorporating insulation cotton, enhances both insulation and sealing performance, and also prevents the adverse effects of high temperatures on the oil cylinder.

[0012] In summary, the beneficial effects of this utility model are: this utility model integrates the door panel and the trolley into one unit, eliminating the traditional door panel structure and door panel drive structure, reducing the manufacturing and installation cycle of the furnace door, saving space and cost, and making the application space of this utility model wider. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0014] The components include: 1. Trolley body; 2. Insulation screen; 3. Support assembly; 4. Fixing plate; 5. Hydraulic cylinder; 51. Cylinder body; 52. Piston rod; 6. Extension frame; 7. Base; 8. Connecting seat; 9. Annealing furnace; 10. Furnace door; 11. Guide rail; 12. Hinge. Detailed Implementation

[0015] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings.

[0016] like Figure 1 The novel annealing furnace trolley shown includes a trolley body 1, which is existing technology. Its structure will not be described in detail in this utility model. In use, the trolley body 1 can enter or exit the annealing furnace 9 through the furnace door 10. This utility model provides two guide rails 11 inside the annealing furnace 9, which extend beyond the annealing furnace 9. The bottom of the trolley body 1 is provided with rollers (not shown in the figure) driven by a motor (not shown in the figure). The rollers cooperate with the guide rails 11, and the trolley body 1 moves on the guide rails 11 to enter and exit the annealing furnace 9.

[0017] like Figure 1 As shown, this utility model is equipped with a heat preservation screen 2, which is mounted on the trolley body 1 and moves synchronously with the trolley body 1. The width of the heat preservation screen 2 is equal to the width of the furnace door 10. When the trolley body 1 enters the annealing furnace 9, the heat preservation screen 2 cooperates with the furnace door 10 of the annealing furnace 9 to close the furnace door 10. When the trolley body 1 moves out of the annealing furnace 9, the heat preservation screen 2 moves away from the furnace door 10 to open the furnace door 10. This utility model uses the movement of the trolley body 1 to make the heat preservation screen 2 cooperate with the furnace door 10 to open or close the furnace door 10, without the need to set a drive mechanism on the top of the annealing furnace 9 to drive the door panel to move vertically to open and close the furnace door. Compared with the prior art, this utility model reduces the requirements for the production workshop in terms of height.

[0018] like Figure 1As shown, this utility model includes a driving device, wherein the bottom end of the heat preservation screen 2 is rotatably connected to the trolley body 1. The driving device is mounted on the trolley body 1 and connected to the heat preservation screen 2, used to drive the heat preservation screen 2 to rotate relative to the trolley body 1. When the furnace door 10 is closed, the driving device drives the heat preservation screen 2 to rotate to a vertical position. To facilitate the rotatable connection between the heat preservation screen 2 and the trolley body 1, this utility model has a support component 3 fixed horizontally on the trolley body 1. The bottom end of the heat preservation screen 2 is hinged to the support component 3. The support component 3 in this utility model is a horizontally arranged channel steel, wherein the opening of the channel steel faces downward. The bottom end of the heat preservation screen 2 is rotatably connected to the top of the channel steel by at least two hinges 12. Figure 1 In this invention, four hinges 12 are used to rotate and mount the heat preservation screen 2 onto the support assembly 3, wherein the four hinges 12 are distributed at equal intervals.

[0019] like Figure 1 As shown, this utility model has a fixing plate 4 welded and fixed to the trolley body 1. The width of the fixing plate 4 is equal to the width of the furnace door 10, and the fixing plate 4 is vertically arranged. The support component 3 is welded to the upper surface of the fixing plate 4 on the side away from the annealing furnace 9. The width of the heat preservation screen 2 is equal to the width of the fixing plate 4. In use, the fixing plate 4 and the heat preservation screen 2 close the furnace door 10 from the upper and lower parts, respectively. The driving device in this utility model is a hydraulic cylinder 5. The cylinder body 51 of the hydraulic cylinder 5 is rotatably mounted on the trolley body 1. The piston rod 52 of the hydraulic cylinder 5 is rotatably connected to the heat preservation screen 2. The extension and retraction of the piston rod 52 of the hydraulic cylinder 5 is used to drive the heat preservation screen 2 to rotate relative to the trolley body 1.

[0020] like Figure 1 As shown, in order to facilitate the installation of the hydraulic cylinder 5, an extension frame 6 is fixed on the trolley body 1 on the side away from the annealing furnace 9. The extension frame 6 is horizontal. The cylinder body 51 of the hydraulic cylinder 5 is rotatably mounted on the extension frame 6. A base 7 is fixed on the extension frame 6. The cylinder body 51 of the hydraulic cylinder 5 and the base 7 are rotatably connected by a rotating shaft. A connecting seat 8 is fixed on the surface of the heat preservation screen 2 on the side away from the annealing furnace 9. The free end of the piston rod 52 of the hydraulic cylinder 5 is rotatably connected to the connecting seat 8 by a rotating shaft. The base 7 and the connecting seat 8 in this utility model have the same structure, both including two connecting ear plates. The two connecting ear plates are arranged in parallel and are welded and fixed to the heat preservation screen 2 or the extension frame 6. The end of the piston rod 52 of the oil cylinder 5 extends into the two connecting ear plates of the connecting seat 8 and is rotatably connected to the connecting seat 8 by a rotating shaft passing through the two connecting ear plates and the piston rod 52. The cylinder body 51 of the oil cylinder 5 extends into the two connecting ear plates of the base 7 and is rotatably connected by a rotating shaft passing through the two connecting ear plates and the end of the cylinder body 51. When the piston rod 52 of the oil cylinder 5 extends or retracts, the cylinder body 51 rotates relative to the base 7 and the piston rod 52 rotates relative to the connecting seat 8.

[0021] This utility model provides insulation cotton inside the insulation screen 2 and along its edges to enhance the sealing and insulation performance between the insulation screen 2 and the furnace door 10 during use. Similarly, this utility model provides insulation cotton inside and around the fixing plate 4 to improve the sealing and insulation performance between the fixing plate 4 and the furnace door 10, as well as between the fixing plate 4 and the insulation screen 2.

[0022] Unless otherwise specified in the above description, all parts are existing technology or can be implemented using existing technology. Furthermore, the specific embodiments described in this utility model are merely preferred embodiments of the invention and are not intended to limit the scope of this utility model. That is, all equivalent changes and modifications made within the scope of this utility model patent should be considered within the technical scope of this utility model.

Claims

1. A new type of annealing furnace trolley, comprising a trolley body which, in the state of use, can enter or move out of an annealing furnace through the furnace door of the annealing furnace, characterized in that: The heat preservation screen is arranged on the trolley body and moves synchronously with the trolley body, cooperates with the furnace door of the annealing furnace to close the furnace door when the trolley body enters the annealing furnace, and moves away from the furnace door to open the furnace door when the trolley body moves out of the annealing furnace.

2. The new annealing lehr truck as claimed in claim 1, wherein: The driving device is arranged on the trolley body and drives the heat preservation screen to flip relative to the trolley body, and the heat preservation screen is in a vertical state in the state of closing the furnace door.

3. The new annealing lehr truck of claim 2, wherein: The support assembly is fixed on the trolley body in a horizontal direction, and the heat preservation screen is hinged to the support assembly.

4. The new annealing lehr truck of claim 3, wherein: The fixed plate is fixed on the trolley body, the width of the fixed plate is equal to the width of the furnace door, the support assembly is fixed on the upper part of the fixed plate, the width of the heat preservation screen is equal to the width of the fixed plate, and the fixed plate and the heat preservation screen close the furnace door from the upper part and the lower part of the furnace door respectively.

5. The new annealing lehr trolley as claimed in claim 2 or 3 or 4, wherein: The driving device is an oil cylinder, the cylinder body of the oil cylinder is rotatably arranged on the trolley body, the piston rod of the oil cylinder is rotatably connected with the heat preservation screen, and the piston rod of the oil cylinder is used to drive the heat preservation screen to flip relative to the trolley body.

6. The new annealing lehr cart of claim 5, wherein: The cylinder body of the oil cylinder is rotatably arranged on the extension frame.

7. The new annealing lehr cart of claim 6, wherein: The base is fixed on the extension frame, the piston rod of the oil cylinder is rotatably connected with the base, the connecting seat is fixed on the heat preservation screen, and the free end of the piston rod of the oil cylinder is rotatably connected with the connecting seat.

8. The new type of annealing lehr trolley as claimed in claim 1 or 2 or 3 or 4, wherein: The heat preservation screen and the edge of the heat preservation screen are provided with heat preservation cotton, so as to enhance the sealing performance and heat preservation performance of the heat preservation screen and the furnace door in the use state.

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