Special kiln for heat treatment

Abstract

The utility model discloses a special kiln for heat treatment, which comprises a kiln body, a lifting frame is mounted at a kiln mouth of the kiln body, a fixed frame is slidably arranged in the lifting frame, a kiln door is detachably mounted in the fixed frame, and a lifting component for driving the fixed frame to move longitudinally is mounted at the upper end of the lifting frame. A lifting assembly is arranged on the fixing frame, a connecting piece is arranged between the lifting assembly and the fixing frame, a connecting plate is arranged in the lifting frame, and the lifting frame and the lifting assembly are arranged, so that the fixing frame can be driven to longitudinally slide in the lifting frame, and the furnace door is transferred; the furnace door can conveniently block or separate the furnace mouth of the furnace body, so that the furnace door can be conveniently opened or closed in time, the condition in the furnace can be conveniently observed, and heat loss is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of kilns, and specifically relates to a special kiln for heat treatment. Background Art

[0002] The kiln door of a kiln refers to the inlet and outlet of the kiln, also known as the kiln gate. Castings are heated and cooled in the kiln. When the operator wants to observe the situation inside the kiln, the operator needs to use the overhead crane in the workshop to lift the observation port kiln door to observe the castings. When using the overhead crane to lift the kiln door, when observation is needed, the overhead crane may be performing other lifting operations and cannot start the kiln door in time, thus missing the observation opportunity, resulting in insufficient or excessive heating time of the castings. Another problem is that when the overhead crane lifts the kiln door, the overhead crane is manually operated, and the raising or lowering of the lifted kiln door needs to be commanded by on-site workers, resulting in too long a time for the kiln door to be stuck in the kiln frame opening, increasing the working time of the operator. In order to speed up the opening or closing of the kiln door, timely observe the situation inside the kiln and reduce heat loss inside the kiln, a special kiln for heat treatment is proposed. Content of the Utility Model

[0003] The purpose of the utility model is to provide a special kiln for heat treatment to solve the problems raised in the above background art.

[0004] To achieve the above purpose, the utility model provides the following technical solution: A special kiln for heat treatment, including a kiln body, an elevating frame is installed at the furnace opening of the kiln body, a fixed frame is slidably arranged inside the elevating frame, a kiln door is detachably installed inside the fixed frame, a lifting component for driving the fixed frame to move longitudinally is installed at the upper end of the elevating frame, a connecting piece is arranged between the lifting component and the fixed frame, a connecting plate is arranged inside the elevating frame, and a pushing component is installed on the connecting plate for pushing the kiln door to block the furnace opening of the kiln body.

[0005] Preferably, grooves are opened on both sides of the inner side end of the elevating frame, and the corresponding two sides of the fixed frame are located inside the inner grooves, providing for the lifting component to drive the fixed frame to move longitudinally inside the grooves, and providing for the pushing component to drive the fixed frame to move transversely inside the grooves.

[0006] Preferably, the connecting piece includes a connecting block fixedly connected to the extending end of the lifting component, a limiting clamping block is arranged on the outer side wall of the fixed frame, and the connecting block is slidably arranged inside the limiting clamping block.

[0007] Preferably, a sliding groove is opened inside the elevating frame, the connecting plate is slidably arranged inside the sliding groove, a connecting frame is installed on the connecting plate, and the connecting frame is sleeved on the connecting block.

[0008] Preferably, the inner side end of the elevating frame near the furnace opening of the kiln body extends inward to form a limiting edge strip for limiting the displacement of the movement of the fixed frame.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: A special kiln for heat treatment, through the arranged lifting frame and lifting assembly, can drive the fixed frame to slide longitudinally within the lifting frame, so as to transfer the furnace door and quickly separate it from the furnace opening, making the furnace opening visible, facilitating the operator to timely observe the situation inside the furnace. Through the arranged pushing assembly and connecting plate, it can conveniently block the furnace opening of the kiln body by the furnace door, avoiding heat loss inside the furnace, and solving the inconvenience of using a crane to open or close the furnace door traditionally. Through the arranged lifting assembly, it can lift the height of the fixed frame and the furnace door, and can maintain a stable height when the pushing assembly pushes the furnace door to move horizontally. Through the arranged limiting edge strip, it can limit the horizontal movement position of the fixed frame and the furnace door. Description of the Drawings

[0010] Figure 1 is the overall structural schematic diagram of the utility model;

[0011] Figure 2 is the structural schematic diagram of the fixed frame and the furnace door of the utility model.

[0012] In the figure: 1 - kiln body, 2 - lifting frame, 3 - fixed frame, 4 - furnace door, 5 - lifting assembly, 6 - connecting piece, 7 - connecting plate, 8 - pushing assembly, 9 - groove, 10 - connecting block, 11 - limiting block, 12 - sliding groove, 13 - connecting frame, 14 - limiting edge strip. Detailed Embodiment

[0013] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the utility model.

[0014] Please refer to Figure 1-2 , the utility model provides a technical solution: A special kiln for heat treatment, including a kiln body 1, a lifting frame 2 is installed at the furnace opening of the kiln body 1, a fixed frame 3 is slidably arranged inside the lifting frame 2, a furnace door 4 is detachably installed inside the fixed frame 3, a lifting assembly 5 for driving the fixed frame 3 to move longitudinally is installed at the upper end of the lifting frame 2, a connecting piece 6 is arranged between the lifting assembly 5 and the fixed frame 3, a connecting plate 7 is arranged inside the lifting frame 2, and a pushing assembly 8 for pushing the furnace door 4 to block the furnace opening of the kiln body 1 is installed on the connecting plate 7.

[0015] The lifting assembly 5 is a telescopic existing technical device such as an electric telescopic rod or a hydraulic cylinder.

[0016] The driving component 8 is a retractable prior art device such as an electric telescopic rod or a hydraulic cylinder.

[0017] Both the lifting component 5 and the driving component 8 are connected to an external controller. The external controller controls the extension lengths of the lifting component 5 and the driving component 8, so that the furnace door 4 is aligned with the furnace opening of the kiln body 1 under the action of the lifting component 5, and then the driving component 8 is combined to push the furnace door 4 to seal the furnace opening.

[0018] Under the action of the driving component 8, the furnace door 4 extends out of the lifting frame 2 and enters the furnace opening of the kiln body 1 for plugging.

[0019] Grooves 9 are formed on both sides of the inner side end of the lifting frame 2. The corresponding two sides of the fixed frame 3 are located in the inner grooves 9, providing for the lifting component 5 to drive the fixed frame 3 to move longitudinally in the grooves 9, and providing for the driving component 8 to drive the fixed frame 3 to move transversely in the grooves 9.

[0020] The connecting member 6 includes a connecting block 10 fixedly connected to the extending end of the lifting component 5. A limit clamping block 11 is provided on the outer side wall of the fixed frame 3, and the connecting block 10 is slidably arranged in the limit clamping block 11.

[0021] A chute 12 is formed in the lifting frame 2. The connecting plate 7 is slidably arranged in the chute 12. A connecting frame 13 is installed on the connecting plate 7. The connecting frame 13 is sleeved on the connecting block 10, and the connecting frame 13 and the connecting plate 7 are connected by a connecting rod.

[0022] The inner side end of the lifting frame 2 near the furnace opening of the kiln body 1 extends inward to form a limit edge strip 14 for limiting the displacement of the movement of the fixed frame 3.

[0023] Working principle: When the utility model is in use, the lifting frame 2 is installed at the furnace opening of the kiln body 1. When it is necessary to block the furnace opening, the lifting assembly 5 is started to drive the fixed frame 3 and the furnace door 4 to descend, so that the furnace door 4 corresponds to the furnace opening. Then, by starting the pushing assembly 8, the furnace door 4 and the fixed frame 3 are pushed to move horizontally in the groove 9. At the same time, since the connecting block 10 is slidably arranged in the limit block 11, during the movement of the furnace door 4, the limit block 11 slides on the connecting block 10, so that the limit block 11 corresponds to different positions of the connecting block 10 until the end of the furnace door 4 blocks the furnace opening. The limit edge strip 14 limits the moving position of the fixed frame 3 to prevent the limit block 11 from detaching from the connecting block 10. Through the arranged connecting frame 13 and the connecting plate 7, during the lifting of the lifting assembly 5, since the connecting frame 13 is sleeved on the connecting block 10, the connecting plate 7 is driven to slide in the chute 12, so that the pushing assembly 8 changes with the lifting of the furnace door 4, facilitating the timely blocking of the furnace opening. When it is necessary to open the furnace door 4, the pushing assembly 8 is controlled to move in the reverse direction, driving the furnace door 4 to disengage from the furnace opening. Then, the furnace door 4 is driven to rise by the lifting assembly 5 to open the furnace opening, thereby facilitating the observation of the internal situation of the kiln body 1 through the furnace opening.

[0024] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A special kiln for heat treatment, characterized in that: The invention comprises a kiln body (1), a lifting frame (2) is installed at the furnace mouth of the kiln body (1), a fixed frame (3) is slidably arranged inside the lifting frame (2), a furnace door (4) is detachably installed inside the fixed frame (3), a lifting component (5) for driving the fixed frame (3) to move longitudinally is installed at the upper end of the lifting frame (2), a connecting piece (6) is arranged between the lifting component (5) and the fixed frame (3), a connecting plate (7) is arranged inside the lifting frame (2), and a pushing component (8) is installed on the connecting plate (7) for pushing the furnace door (4) to block the furnace mouth of the kiln body (1).

2. The heat treatment kiln according to claim 1, characterized in that: Grooves (9) are provided on both sides of the inner end of the lifting frame (2), and the corresponding two side edges of the fixed frame (3) are located in the inner grooves (9). A lifting component (5) is provided to drive the fixed frame (3) to move longitudinally in the grooves (9), and a pushing component (8) is provided to drive the fixed frame (3) to move transversely in the grooves (9).

3. The heat treatment kiln according to claim 1, characterized in that: The connecting member (6) comprises a connecting block (10) fixedly connected to the protruding end of the lifting assembly (5), and a limit block (11) is provided on the outer side wall of the fixed frame (3), and the connecting block (10) is slidably arranged in the limit block (11).

4. The heat treatment kiln according to claim 3, characterized in that: A slide groove (12) is provided in the lifting frame (2), the connecting plate (7) is slidably arranged in the slide groove (12), a connecting frame (13) is installed on the connecting plate (7), and the connecting frame (13) is sleeved on the connecting block (10).

5. The heat treatment kiln according to claim 1, characterized in that: The inner end of the lifting frame (2) near the furnace opening of the kiln body (1) extends inward to form a limiting edge strip (14) for limiting the displacement of the fixed frame (3).

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