Large trolley type resistance furnace equipment with slender shaft

Abstract

The utility model discloses slender shaft large trolley type resistance furnace equipment which comprises a resistance furnace, sizing blocks and an opening and closing moving device, a slidable trolley is installed on one side of the resistance furnace, a closing door is connected to one side of the resistance furnace in a sliding mode, the adjustable sizing blocks are installed on the trolley at equal intervals, and heat insulation materials are installed on the upper surfaces of the sizing blocks. An opening and closing moving device is installed on one side of the resistance furnace and matched with the closing door and the trolley, a support is fixedly connected to the top end of the resistance furnace, a motor is fixedly connected to the middle of the top end of the support, and the output end of the motor is fixedly connected with a threaded rod. One side of the closing door is fixedly connected with a threaded sliding block, the threaded sliding block is in threaded connection with the threaded rod, an environment temperature field formed by cooling after normalizing heat treatment of the slender shaft is controlled, and large bending deformation caused by an improper charging mode is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of large-scale trolley-type resistance furnaces, in particular to large-scale trolley-type resistance furnace equipment with a slender shaft. Background Art

[0002] At present, there are many types of products processed by large trolley-type resistance furnaces, and the sizes are different. When loading the furnace for heat treatment, the product and the trolley plate are supported by pads. The slender shaft is often placed on other products or large heat-resistant pads. The ambient temperature field formed by cooling is centered on the product or large heat-resistant pad below the slender shaft, decreasing from bottom to top. The lateral temperature field is uneven, resulting in large bending deformation at both ends of the slender shaft after normalizing. In addition, the slender shaft is directly placed on the pads in the traditional process. When cooling, because the plate on the trolley is thin and the cooling speed is fast, the slender shaft quickly transfers heat to the pads, causing its two ends to bend downward. Although pressure correction and stress relief heat treatment are performed, products with too high requirements for runout accuracy are often difficult to meet the requirements, resulting in the product being scrapped due to unsatisfactory accuracy.

[0003] Therefore, we propose a large trolley-type resistance furnace equipment with a slender shaft. Utility Model Content

[0004] The utility model aims to provide a large-scale trolley-type resistance furnace device with a slender shaft to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a large trolley-type resistance furnace equipment with a slender shaft, comprising: a resistance furnace, a shim and an opening and closing movable device, a slidable trolley is installed on one side of the resistance furnace, a closing door is slidably connected to one side of the resistance furnace, adjustable shims are equidistantly installed on the trolley, a heat-insulating material is installed on the upper surface of the shims, a first slender shaft is placed on the shims and the heat-insulating material placed on the trolley, an opening and closing movable device is installed on one side of the resistance furnace, and the opening and closing movable device is installed in coordination with the closing door and the trolley.

[0006] Preferably, the opening and closing moving device comprises: a bracket, a bracket is fixedly connected to the top of the resistance furnace, a motor is fixedly connected to the middle of the top of the bracket, a threaded rod is fixedly connected to the output end of the motor, a threaded slider is fixedly connected to one side of the closing door, the threaded slider is threadedly connected to the threaded rod, the top of the threaded rod is fixedly connected to an active bevel gear, one side of the bracket is rotatably connected to a connecting shaft, one end of the connecting shaft is fixedly connected to a driven bevel gear, the other end of the connecting shaft is fixedly connected to a collecting wheel, the bottom end of the resistance furnace is fixedly connected to a bottom plate, the top of the bottom plate is symmetrically fixedly connected to a sliding rod, the bottom end of the trolley is slidably connected to the sliding rod, the outer wall of the sliding rod is sleeved with a return spring, the two ends of the return spring are respectively fixedly connected to the bottom end of the trolley and one end of the sliding rod, a movable pulley is installed on one side of the trolley, and a fixed pulley is rotatably installed on one side of the resistance furnace, and a pull rope is fixedly connected to one side of the resistance furnace, the pull rope passes through the movable pulley, and passes from the fixed pulley to be fixedly connected to the outer wall of the collecting wheel.

[0007] Preferably, the thickness of the shim is ≤1 / 2D, and the height of the shim is ≥4D.

[0008] Preferably, the thickness of the thermal insulation material can effectively block the heat conduction of the second elongated axial washer during the cooling process.

[0009] Preferably, resistance wires are evenly distributed on the front, back, left, right, and upper flat plates of the resistance furnace, to ensure uniform heating of the trolley-type resistance furnace.

[0010] Preferably, the first slender shaft should be placed in non-flowing air for cooling after being heat-treated and taken out of the furnace.

[0011] Preferably, the motor is a reduction motor.

[0012] Preferably, a controller is fixedly connected to one side of the resistance furnace.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] The utility model controls the ambient temperature field formed by cooling the slender shaft after normalizing heat treatment, and reduces the large bending deformation caused by improper furnace loading method;

[0015] The utility model controls the motor to rotate the threaded rod, thereby opening and closing the closed door, and then the collecting wheel rotates through the cooperation of the active bevel gear and the driven bevel gear, so that the pull rope is wound, and the fixed pulley cooperates with the movable pulley to pull the trolley to open and close, thereby facilitating the placement of the slender shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the overall back structure of the utility model.

[0018] In the figure: 1. resistance furnace; 2. trolley; 3. closing door; 4. shim; 5. thermal insulation material; 6. opening and closing moving device; 7. first slender shaft; 8. second slender shaft; 9. controller; 61. bracket; 62. motor; 63. threaded rod; 64. threaded slider; 65. active bevel gear; 66. connecting shaft; 67. driven bevel gear; 68. collecting wheel; 69. slide rod; 610. reset spring; 611. bottom plate; 612. movable pulley; 613. fixed pulley; 614. pull rope. 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 1-2 As shown, a large trolley-type resistance furnace equipment with a slender shaft comprises: a resistance furnace 1, a washer 4 and an opening and closing movable device 6. A slidable trolley 2 is installed on one side of the resistance furnace 1, and a closed door 3 is slidably connected to one side of the resistance furnace 1. Adjustable washer 4 is equidistantly installed on the trolley 2, and a heat insulating material 5 is installed on the upper surface of the washer 4. A slender shaft 7 is placed on the washer 4 and the heat insulating material 5 placed on the trolley 2. An opening and closing movable device 6 is installed on one side of the resistance furnace 1, and the opening and closing movable device 6 is installed in cooperation with the closed door 3 and the trolley 2. The thickness of the washer 4 is ≤1 / 2DD which is the diameter of the slender shaft, and the height of the washer is ≥4D. The thickness of the heat insulating material 5 can effectively block the heat conduction of the slender shaft 8 to the washer 4 during the cooling process. Resistance wires are evenly distributed on the front, back, left, right, and right sides of the resistance furnace 1 and the flat plate on the trolley 2 to ensure uniform heating of the trolley-type resistance furnace. The slender shaft 7 should be placed in non-flowing air for cooling after heat treatment. A controller 9 is fixedly connected to one side of the resistance furnace 1.

[0021] See also Figure 1-2As shown, the opening and closing moving device 6 includes: a bracket 61, the top of the resistance furnace 1 is fixedly connected to the bracket 61, the middle of the top of the bracket 61 is fixedly connected to the motor 62, the output end of the motor 62 is fixedly connected to the threaded rod 63, one side of the closing door 3 is fixedly connected to the threaded slider 64, the threaded slider 64 is threadedly connected to the threaded rod 63, the top of the threaded rod 63 is fixedly connected to the driving bevel gear 65, one side of the bracket 61 is rotatably connected to the connecting shaft 66, one end of the connecting shaft 66 is fixedly connected to the driven bevel gear 67, the other end of the connecting shaft 66 is fixedly connected to the collecting wheel 68, the bottom end of the resistance furnace 1 is fixed A bottom plate 611 is connected, and a slide bar 69 is symmetrically fixedly connected to the top of the bottom plate 611. The bottom end of the trolley 2 is slidably connected to the slide bar 69. A return spring 610 is sleeved on the outer wall of the slide bar 69. The two ends of the return spring 610 are respectively fixedly connected to the bottom end of the trolley 2 and one end of the slide bar 69. A movable pulley 612 is installed on one side of the trolley 2. A fixed pulley 613 is rotatably connected to one side of the resistance furnace 1. A pull rope 614 is fixedly connected to one side of the resistance furnace 1. The pull rope 614 passes through the movable pulley 612 and passes through the fixed pulley 613 to be fixedly connected to the outer wall of the collecting wheel 68. The motor 62 is a reduction motor.

[0022] Working principle:

[0023] The utility model controls the ambient temperature field formed by cooling of the slender shaft 87 after normalizing heat treatment, reduces the large bending deformation caused by improper furnace loading, and drives the threaded rod 63 to rotate by accurately controlling the operation of the motor 62. This rotation action then triggers the opening and closing of the closed door 3, thereby realizing flexible control of the space. At the same time, by using the ingenious cooperation of the active bevel gear 65 and the driven bevel gear 67, the collecting wheel 68 is rotated, thereby tightly winding the pull rope 614. In this process, the coordinated work of the fixed pulley 613 and the movable pulley 612 effectively pulls the opening and closing of the trolley 2, making the operation more convenient. Such a design not only optimizes the space utilization, but also greatly facilitates the placement of the slender shaft 87, improves the work efficiency, and makes the overall operation smoother and more comfortable.

[0024] 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.

[0025] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A large trolley-type resistance furnace equipment with a slender shaft, characterized in that: include: A resistance furnace (1), a slidable trolley (2) is installed on one side of the resistance furnace (1), and a closing door (3) is slidably connected to one side of the resistance furnace (1); Washers (4), adjustable washers (4) are equidistantly mounted on the trolley (2), a heat insulating material (5) is mounted on the upper surface of the washers (4), and a first elongated shaft (7) is placed on the washers (4) and the heat insulating material (5) placed on the trolley (2); An opening and closing movable device (6) is installed on one side of the resistance furnace (1), and the opening and closing movable device (6) is installed in coordination with the closing door (3) and the trolley (2).

2. A large trolley type resistance furnace equipment with a slender shaft according to claim 1, characterized in that: The opening and closing moving device (6) comprises: a bracket (61), the top of the resistance furnace (1) is fixedly connected to the bracket (61), the middle of the top of the bracket (61) is fixedly connected to a motor (62), the output end of the motor (62) is fixedly connected to a threaded rod (63), one side of the closing door (3) is fixedly connected to a threaded slider (64), the threaded slider (64) is threadedly connected to the threaded rod (63), the top of the threaded rod (63) is fixedly connected to a driving bevel gear (65), one side of the bracket (61) is rotatably connected to a connecting shaft (66), one end of the connecting shaft (66) is fixedly connected to a driven bevel gear (67), the other end of the connecting shaft (66) is fixedly connected to a collecting wheel (68), the resistance furnace ( 1) The bottom end is fixedly connected with a bottom plate (611), the top of the bottom plate (611) is symmetrically fixedly connected with a slide bar (69), the bottom end of the trolley (2) is slidably connected with the slide bar (69), the outer wall of the slide bar (69) is sleeved with a return spring (610), the two ends of the return spring (610) are respectively fixedly connected with the bottom end of the trolley (2) and one end of the slide bar (69), a movable pulley (612) is installed on one side of the trolley (2), a fixed pulley (613) is rotatably connected to one side of the resistance furnace (1), a pull rope (614) is fixedly connected to one side of the resistance furnace (1), the pull rope (614) passes through the movable pulley (612), and passes through the fixed pulley (613) and is fixedly connected to the outer wall of the collecting wheel (68).

3. The large trolley type resistance furnace equipment with a slender shaft according to claim 1 is characterized in that: The thickness of the washer (4) is ≤1 / 2D (D is the diameter of the slender shaft), and the height of the washer is ≥4D.

4. The large trolley type resistance furnace equipment with a slender shaft according to claim 1 is characterized in that: The thickness of the heat insulating material (5) can effectively block the heat conduction from the second elongated shaft (8) to the pad iron (4) during the cooling process.

5. The large trolley type resistance furnace equipment with a slender shaft according to claim 1 is characterized in that: The resistance wires are evenly distributed on the front, back, left, right and sides of the resistance furnace (1) and on the flat plate of the trolley (2), ensuring that the trolley-type resistance furnace is heated evenly.

6. The large trolley type resistance furnace equipment with a slender shaft according to claim 1 is characterized in that: The first slender shaft (7) should be placed in non-flowing air for cooling after being heat-treated and taken out of the furnace.

7. The large trolley type resistance furnace equipment with a slender shaft according to claim 2, characterized in that: The motor (62) is a reduction motor.

8. The large trolley type resistance furnace equipment with a slender shaft according to claim 1 is characterized in that: A controller (9) is fixedly connected to one side of the resistance furnace (1).

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