Furnace door driving device for rotary heat treatment furnace

Abstract

The utility model discloses a furnace door driving device for a rotary heat treatment furnace, which relates to the technical field of heat treatment furnace door driving devices and comprises a furnace door body, an air cylinder, a driving system and a buffer. The driving system comprises a supporting frame fixedly connected with the furnace door, a swing arm and a connecting rod connected to an upper frame and a lower frame of the supporting frame. The superiority of a four-bar linkage mechanism is used for opening and closing the furnace door, the stability of the whole set of driving system is guaranteed, the furnace door opening and closing action is translation action, the operable space in front of the furnace is saved, the furnace door is seamlessly connected with a robot matched with the furnace door, and the unnecessary waiting time of the robot is greatly shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of heat treatment furnace door driving devices, in particular to a furnace door driving device for a rotary heat treatment furnace. Background Art

[0002] The birth of the rotary heat treatment furnace is based on the user's requirements for fully automated, basket-free and energy-saving workpiece processing. This type of furnace is generally arranged into 3 or more layers of workstations in the height direction of the furnace body according to the user's production rhythm, and each layer is evenly arranged with a circle of workstations along the rotation center. Each layer is equipped with an inlet and outlet door to realize the robot fork feeding and taking of materials.

[0003] Currently, users are demanding faster and faster production cycles, which requires the heat treatment furnace door to be opened and closed in a way that saves time and space as much as possible, so as to reserve more time for the robot to move. The traditional furnace door is a flip structure, which takes up a lot of space, and the robot can only start to take materials in the original position after it is fully opened, which causes the robot to wait for extra time, affecting production efficiency and failing to ensure the stability of the entire drive system. Utility Model Content

[0004] The utility model provides a furnace door driving device for a rotary heat treatment furnace to solve the problems raised in the above background technology.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0006] A furnace door drive device for a rotary heat treatment furnace includes a furnace door body, a cylinder and a drive system, and a buffer. The furnace door body includes a furnace door steel plate, a refractory material and an adjustable furnace door sealing device. The drive system includes a support frame fixedly connected to the furnace door, a swing arm and connecting rods connected to the upper and lower frames of the support frame.

[0007] The further improvement of the technical solution of the utility model is that: the inner side of the furnace door steel plate is arranged with welded vertical ribs in an array to increase the strength of the furnace door and prevent deformation. The welded vertical ribs are welded with strip steel used to fix the inner lining plate and are bolted to the inner lining plate. After the refractory material is laid on the inner side of the furnace door steel plate, the stainless steel inner lining plate is laid. The stainless steel inner lining plate is laid in blocks to prevent the plate width from being too large and deformed due to heat.

[0008] The further improvement of the technical solution of the utility model is that: the furnace door sealing device is designed to be adjustable, the angle steel welded on the side of the furnace door steel plate serves as the installation groove of the sealing rope, the open end of the installation groove serves as the contact surface with the furnace door of the heat treatment furnace, and the opposite side of the contact surface is provided with a sealing strip pressure plate and an adjusting bolt. When installing and debugging the furnace door, the length of the screwed-in adjustment bolt, that is, the height of the leakage of the sealing rope is adjusted to ensure that the sealing rope and the furnace door frame are compacted without gaps to prevent heat leakage during operation. After the sealing rope is adjusted, the sealing rope is tightened with the set screws evenly arranged on the side of the angle steel.

[0009] The further improvement of the technical solution of the utility model is that the support frame in the driving system is fastened to the furnace door by bolts, and the upper and lower frame ends of the support frame have shaft holes and bearing installation holes, the shaft in the swing arm structure penetrates the shaft hole and the bearing is installed, and the middle position of the upper and lower frames of the support frame is provided with a joint bearing connecting rod. Correspondingly, a joint bearing is also provided at a suitable position of the furnace body, and the two joint bearings are connected in the middle by a connecting rod.

[0010] A further improvement of the technical solution of the utility model is that one end of the swing arm in the drive system is connected to the furnace door support frame and the other end is fixed to the heat treatment furnace body with a bearing, and a connecting piece of the driving cylinder is provided on the swing arm and connected to the cylinder joint.

[0011] The further improvement of the technical solution of the utility model is that a buffer is installed on the furnace body of the heat treatment furnace, and a buffer impact plate is provided on the connecting shaft between the rotating arm and the furnace body. When the cylinder drives the furnace door to open almost in place, it plays a buffering role, so that the furnace door opens slowly in place, which plays a protective role on the overall driving system.

[0012] A further improvement of the technical solution of the utility model is that the support frame, connecting rod, swing arm and furnace body form a four-bar linkage mechanism, wherein the fixing points of the connecting rod and the swing arm on the furnace body are used as the rotating shaft, and the cylinder is used as the power to realize the opening and closing of the furnace door.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] The utility model provides a furnace door and a driving device for a rotary heat treatment furnace. The furnace door is opened and closed by utilizing the advantages of a four-bar linkage mechanism to ensure the stability of the entire driving system. The furnace door is opened and closed in a translational manner, which saves the operable space in front of the furnace and enables a robot that cooperates with the furnace to be seamlessly connected, thereby greatly reducing the robot's unnecessary waiting time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the furnace door and the driving device of the utility model;

[0017] Figure 3 It is a detailed structural schematic diagram of the solid melting furnace door of the utility model.

[0018] In the figure: 101, furnace door steel plate; 102, furnace door sealing device; 103, welded vertical ribs; 104, fixed inner lining plate; 105, welded angle steel; 106, adjusting bolts; 107, sealing strip pressure plate; 201, support frame; 202, swing arm; 203, connecting rod. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-Figure 3 , the utility model provides a technical solution:

[0021] Embodiment 1:

[0022] A furnace door driving device for a rotary heat treatment furnace includes a furnace door body, a cylinder and a driving system, and a buffer. The furnace door body includes a furnace door steel plate 101, a refractory material and an adjustable furnace door sealing device 102. The driving system includes a support frame 201 fixedly connected to the furnace door, a swing arm 202 and a connecting rod 203 connected to the upper and lower frames of the support frame 201.

[0023] The inner side of the furnace door steel plate 101 is arranged with welded vertical ribs 103 in an array to increase the strength of the furnace door and prevent deformation. The welded vertical ribs 103 are welded with strip steel used to fix the inner lining plate 104 and are bolted to the inner lining plate 104. After the refractory material is laid on the inner side of the furnace door steel plate 101, the stainless steel inner lining plate 104 is laid. The stainless steel inner lining plate 104 is laid in blocks to prevent the plate width from being too large and deformed due to heat.

[0024] The furnace door sealing device 102 is designed to be adjustable. Angle steel 105 is welded on the side of the furnace door steel plate 101 as the installation groove of the sealing rope. The open end of the installation groove serves as the contact surface with the furnace door of the heat treatment furnace. The opposite side of the contact surface is provided with a sealing strip pressing plate 107 and an adjusting bolt 106. When installing and debugging the furnace door, the length of the screwed-in adjusting bolt 106, that is, the height of the leakage of the sealing rope is adjusted to ensure that the sealing rope and the furnace door frame are compacted without gaps to prevent heat leakage during operation. After the sealing rope is adjusted, the sealing rope is tightened with the set screws evenly arranged on the side of the angle steel.

[0025] Embodiment 2:

[0026] On the basis of the first embodiment: the support frame 201 in the driving system is fastened to the furnace door by bolts, and the upper and lower frame ends of the support frame 201 have shaft holes and bearing installation holes, the shaft in the swing arm 202 structure penetrates the shaft hole and the bearing is installed, and the middle position of the upper and lower frames of the support frame 201 is provided with a joint bearing connecting rod 204. Correspondingly, a joint bearing is also provided at a suitable position of the furnace body, and the two joint bearings are connected in the middle by a connecting rod 203.

[0027] One end of the swing arm 202 in the driving system is connected to the furnace door support frame 201 and the other end is fixed to the furnace body of the heat treatment furnace by a bearing, and a connecting piece of a driving cylinder is arranged on the swing arm 202 and connected to the cylinder joint.

[0028] A buffer is installed on the heat treatment furnace body, and a buffer impact plate is set on the connecting shaft between the rotating arm and the furnace body. When the cylinder drives the furnace door to open almost in place, it plays a buffering role, allowing the furnace door to open slowly and protect the overall drive system.

[0029] The support frame 201, the connecting rod 203, the swing arm 202 and the furnace body 1 form a four-bar linkage mechanism, wherein the connecting rod 203 and the swing arm 202 are fixed on the furnace body as the rotating shaft, and the cylinder is used as the power to realize the opening and closing of the furnace door.

[0030] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A furnace door driving device for a rotary heat treatment furnace, comprising a furnace door body, a cylinder and a driving system, and a buffer, characterized in that: The furnace door body comprises a furnace door steel plate (101), a refractory material and an adjustable furnace door sealing device (102); the driving system comprises a support frame (201) fixedly connected to the furnace door, a swing arm (202) and a connecting rod (203) connected to the upper and lower frames of the support frame (201).

2. The furnace door driving device for a rotary heat treatment furnace according to claim 1, characterized in that: The inner side of the furnace door steel plate (101) is arranged with welded vertical ribs (103) in an array, the welded vertical ribs (103) are welded with strip steel used for fixing the inner lining plate (104) and are bolted to the inner lining plate (104), and the fixed inner lining plate (104) is laid in blocks.

3. The furnace door driving device for a rotary heat treatment furnace according to claim 1, characterized in that: The furnace door sealing device (102) is designed to be adjustable. The angle steel (105) is welded on the side of the furnace door steel plate (101) as a mounting groove for the sealing rope. The open end of the mounting groove serves as a contact surface with the furnace door opening of the heat treatment furnace. A sealing strip pressure plate (107) and an adjusting bolt (106) are arranged on the opposite side of the contact surface.

4. The furnace door driving device for a rotary heat treatment furnace according to claim 1, characterized in that: The support frame (201) in the driving system is fastened to the furnace door by bolts, and the upper and lower frame ends of the support frame (201) are provided with shaft holes and bearing installation holes, the shaft in the swing arm (202) structure is inserted into the shaft hole and the bearing is installed, and a joint bearing connecting rod (204) is arranged in the middle of the upper and lower frames of the support frame (201).

5. The furnace door driving device for a rotary heat treatment furnace according to claim 1, characterized in that: One end of the swing arm (202) in the driving system is connected to the furnace door support frame (201) and the other end is fixed to the furnace body of the heat treatment furnace by a bearing, and a connecting piece of a driving cylinder is arranged on the swing arm (202) and is connected to the cylinder joint.

6. The furnace door driving device for a rotary heat treatment furnace according to claim 1, characterized in that: A buffer is installed on the furnace body of the heat treatment furnace, and a buffer impact plate is arranged on the connecting shaft between the rotating arm and the furnace body.

7. The furnace door driving device for a rotary heat treatment furnace according to claim 1, characterized in that: The support frame (201), the connecting rod (203), the swing arm (202) and the furnace body (1) form a four-bar linkage mechanism.

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