Furnace door hinge device of vacuum furnace

Abstract

The utility model provides a hinge device for a furnace door of a vacuum furnace, which belongs to the technical field of vacuum furnace equipment and comprises a furnace seat opening and a furnace door, a C-shaped hinged support is mounted on one side of the furnace seat opening, and a hinge shaft is rotatably connected into the hinged support; and two supporting mechanisms are installed at the bottom of the connecting plate frame, each supporting mechanism comprises a supporting frame, a lifting frame, a lead screw, a nut base, a driven bevel gear, a driving bevel gear and an adjusting piece, and moving wheels are installed in the bottom area of the lifting frame. According to the device, the supporting frame and the lifting frame can stretch out and draw back through cooperation of accessories such as an adjusting piece, a bevel gear set and a lead screw and nut base of the supporting mechanism, so that the moving wheels effectively make contact with the ground, part of the weight of the furnace door can be effectively supported through the supporting mechanism and the moving wheels, and meanwhile the moving wheels can roll along with opening of the furnace door; smooth opening of the furnace door is guaranteed, burden borne by the hinged support and the hinge shaft is reduced, the service life of the furnace door hinge is prolonged, and safety is improved.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of vacuum furnace equipment, in particular to a vacuum furnace door hinge device. Background Art

[0002] The opening and closing of the furnace door is an essential process during the loading and unloading process of the vacuum furnace. Ensuring the stable and safe opening and closing of the furnace door is a requirement that the vacuum furnace must meet. Therefore, a hinge device with flexible opening and closing, stable movement, and adjustable positioning is an important component of the vacuum furnace shell.

[0003] The hinge structure of the existing horizontal vacuum furnace shell is complex and has a small bearing capacity. When the furnace door is opened, the weight of the furnace door is entirely supported by the hinge, which puts a large pressure on the hinge, affects the service life of the furnace door hinge, and has low safety. Utility Model Content

[0004] The utility model mainly provides a vacuum furnace door hinge device to solve the technical problems raised in the above background technology.

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

[0006] A vacuum furnace door hinge device comprises a furnace seat opening and a furnace door, a C-shaped hinge seat is installed on one side of the furnace seat opening, a hinge shaft is rotatably connected inside the hinge seat, and a connecting plate frame is installed on the hinge shaft to connect with the furnace door;

[0007] Two groups of supporting mechanisms are installed at the bottom of the connecting plate frame, and the supporting mechanisms include a supporting frame connected to the bottom of the connecting plate frame and having an opening at the bottom, a lifting frame installed inside the supporting frame and having an opening at the top, a screw rod rotatably connected to the inside of the supporting frame, a nut seat slidably connected to the screw rod and connected to the top of the lifting frame, a driven bevel gear installed on the top of the screw rod, an active bevel gear perpendicular to and meshing with the driven bevel gear, an adjusting member installed on the top outside of the supporting frame and connected to the active bevel gear, and a moving wheel is installed on the bottom area of ​​the lifting frame.

[0008] Furthermore, the connecting plate frame is an L-shaped structure, and one end of the connecting plate frame extends to a side of the furnace door away from the hinge seat.

[0009] Furthermore, the two groups of support mechanisms are respectively located on two sides of the bottom of the connecting plate frame.

[0010] Furthermore, the adjusting member is a crank rocker structure.

[0011] Furthermore, a blocking block with an opening in the middle is installed inside the support frame, and the blocking block is located on the inner wall of the support frame in the bottom area of ​​the active bevel gear.

[0012] Furthermore, the movable wheel is a universal wheel structure.

[0013] Furthermore, a buffer mechanism is installed between the lifting frame and the moving wheel, and the buffer mechanism includes a hollow shaft connected to the bottom of the lifting frame and a telescopic shaft connected to the top of the wheel frame of the moving wheel. The bottom of the hollow shaft is provided with an opening whose opening diameter is smaller than the internal diameter, and the top of the telescopic shaft is provided with a limiting disk penetrating into the interior of the hollow shaft, and a buffer spring is installed inside the hollow shaft.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] This device can achieve telescoping between the support frame and the lifting frame through the cooperation of the adjusting parts of the support mechanism, the bevel gear set, the screw rod and the nut seat and other accessories, so that the moving wheel can effectively contact the ground. Therefore, when the furnace door is opened, part of the weight of the furnace door will be effectively supported by the support mechanism and the moving wheel. At the same time, the moving wheel can roll as the furnace door opens, thereby ensuring the smooth opening of the furnace door, reducing the burden on the hinge seat and the hinge shaft, increasing the service life of the furnace door hinge and improving safety.

[0016] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a cross-sectional schematic diagram of the regional structure of the support mechanism of the utility model;

[0019] Figure 3 It is a schematic cross-sectional view of the buffer mechanism regional structure of the utility model.

[0020] In the figure: 10, furnace seat opening; 20, furnace door; 30, hinge seat; 40, hinge shaft; 50, connecting plate frame; 60, supporting mechanism; 61, supporting frame; 62, lifting frame; 63, screw rod; 64, nut seat; 65, driven bevel gear; 66, driving bevel gear; 67, adjusting member; 68, blocking block; 70, moving wheel; 80, buffer mechanism; 81, hollow shaft; 82, telescopic shaft; 83, buffer spring; 84, limiting disk. DETAILED DESCRIPTION

[0021] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0022] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] For examples, please refer to the attached Figure 1-3 A vacuum furnace door hinge device comprises a furnace seat opening 10 and a furnace door 20, a C-shaped hinge seat 30 is installed on one side of the furnace seat opening 10, a hinge shaft 40 is rotatably connected inside the hinge seat 30, and a connecting plate frame 50 is installed on the hinge shaft 40 to connect with the furnace door 20;

[0025] Two groups of supporting mechanisms 60 are installed at the bottom of the connecting plate frame 50, and the supporting mechanism 60 includes a supporting frame 61 connected to the bottom of the connecting plate frame 50 and having an opening at the bottom, a lifting frame 62 installed inside the supporting frame 61 and having an opening at the top, a screw rod 63 rotatably connected and installed inside the supporting frame 61, a nut seat 64 slidingly connected to the screw rod 63 and connected to the top of the lifting frame 62, a driven bevel gear 65 installed on the top of the screw rod 63, an active bevel gear 66 perpendicular to and meshing with the driven bevel gear 65, an adjusting member 67 installed on the top of the outer side of the supporting frame 61 and connected to the active bevel gear 66, and a moving wheel 70 is installed at the bottom area of ​​the lifting frame 62.

[0026] For details, please refer to the attached Figure 1 The connecting plate frame 50 is an L-shaped structure, and one end of the connecting plate frame 50 extends to the side of the furnace door 20 away from the hinge seat 30;

[0027] Furthermore, the two groups of support mechanisms 60 are respectively located on both sides of the bottom of the connecting plate frame 50;

[0028] In this embodiment, it should be noted that the connecting plate frame 50 can cover the front surface of the furnace door 20, so that the connection between the connecting plate frame 50 and the furnace door 20 is more stable. At the same time, the supporting mechanism 60 located on both sides of the bottom can more stably and effectively support the bottom of the furnace door 20, so that the weight of the furnace door 20 acts on the ground, reducing the pressure on the hinge seat 30 and the hinge shaft 40.

[0029] For details, please refer to the attached Figure 2 , the adjusting member 67 is a crank rocker structure;

[0030] In this embodiment, it should be noted that the crank rocker can more conveniently rotate the active bevel gear 66 to realize the rotation of the screw rod 63, and then the nut seat 64 drives the lifting frame 62 to rise and fall in the support frame 61, adjust the height, and enable the moving wheel 70 to contact the ground to complete the gravity sharing.

[0031] For details, please refer to the attached Figure 2 A blocking block 68 with an opening in the middle is installed inside the support frame 61, and the blocking block 68 is located on the inner wall of the support frame 61 at the bottom area of ​​the active bevel gear 66;

[0032] In this embodiment, it should be noted that the blocking block 68 can prevent the adjusting member 67 from being shaken excessively, causing the top of the lifting frame 62 to contact the bevel gear and affect the transmission.

[0033] For details, please refer to the attached Figure 3 , the moving wheel 70 is a universal wheel structure;

[0034] In this embodiment, it should be noted that the universal wheel can adjust the direction more smoothly when the oven door 20 is opened, so as to cooperate with the oven door 20 to complete the flipping movement.

[0035] For details, please refer to the attached Figure 3 A buffer mechanism 80 is installed between the lifting frame 62 and the moving wheel 70. The buffer mechanism 80 includes a hollow shaft 81 connected to the bottom of the lifting frame 62 and a telescopic shaft 82 connected to the top of the wheel frame of the moving wheel 70. The bottom of the hollow shaft 81 is provided with an opening whose opening diameter is smaller than the internal diameter. The top of the telescopic shaft 82 is installed with a limiting disk 84 that penetrates into the interior of the hollow shaft 81. A buffer spring 83 is installed inside the hollow shaft 81.

[0036] In the present embodiment, it should be noted that, due to the uneven floor of some vacuum furnaces, the moving wheel 70 cannot contact the ground, which will cause the weight of the furnace door 20 to not be transmitted well. When the moving wheel 70 is fixedly in contact with the ground, the furnace door 20 will not be able to be opened when encountering a raised ground. The buffer mechanism 80 can realize the extension and retraction of the telescopic shaft 82 and the hollow shaft 81 through the buffer spring 83, thereby ensuring the smooth support of the support mechanism 60 and the smooth opening of the furnace door 20.

[0037] The specific operation mode of the utility model is as follows:

[0038] Before use, firstly, the active bevel gear 66 drives the driven bevel gear 65 to transmit by shaking the adjusting member 67, so that the screw rod 63 rotates, and the screw nut 64 drives the lifting frame 62 to slide. When the moving wheel 70 at the bottom area of ​​the lifting frame 62 contacts the ground, the adjustment is completed;

[0039] When the furnace door 20 is subsequently opened, part of the weight of the furnace door 20 will be effectively supported by the support mechanism 60 and the moving wheels 70 , and the moving wheels 70 can roll as the furnace door 20 opens, thereby ensuring smooth opening of the furnace door 20 .

[0040] The above description of the utility model is exemplified in combination with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A vacuum furnace door hinge device, comprising a furnace seat opening (10) and a furnace door (20), characterized in that: A C-shaped hinge seat (30) is installed on one side of the furnace seat opening (10), a hinge shaft (40) is rotatably connected inside the hinge seat (30), and a connecting plate frame (50) is installed on the hinge shaft (40) to be connected to the furnace door (20); Two groups of support mechanisms (60) are installed at the bottom of the connecting plate frame (50), and the support mechanism (60) includes a support frame (61) connected to the bottom of the connecting plate frame (50) and having an opening at the bottom, a lifting frame (62) installed inside the support frame (61) and having an opening at the top, a screw rod (63) rotatably connected and installed inside the support frame (61), a nut seat (64) slidably connected to the screw rod (63) and connected to the top of the lifting frame (62), a driven bevel gear (65) installed at the top of the screw rod (63), a driving bevel gear (66) perpendicular to and meshing with the driven bevel gear (65), and an adjusting member (67) installed at the top of the outer side of the support frame (61) and connected to the driving bevel gear (66). A moving wheel (70) is installed at the bottom area of ​​the lifting frame (62).

2. A vacuum furnace door hinge device according to claim 1, characterized in that: The connecting plate frame (50) is an L-shaped structure, and one end of the connecting plate frame (50) extends to a side of the furnace door (20) away from the hinge seat (30).

3. A vacuum furnace door hinge device according to claim 2, characterized in that: The two groups of support mechanisms (60) are respectively located on two sides of the bottom of the connecting plate frame (50).

4. A vacuum furnace door hinge device according to claim 1, characterized in that: The adjusting member (67) is a crank rocker structure.

5. The vacuum furnace door hinge device according to claim 1, characterized in that: A blocking block (68) with an opening in the middle is installed inside the support frame (61), and the blocking block (68) is located on the inner wall of the support frame (61) at the bottom area of ​​the active bevel gear (66).

6. The vacuum furnace door hinge device according to claim 1, characterized in that: The moving wheel (70) is a universal wheel structure.

7. The vacuum furnace door hinge device according to claim 1, characterized in that: A buffer mechanism (80) is installed between the lifting frame (62) and the moving wheel (70), and the buffer mechanism (80) comprises a hollow shaft (81) connected to the bottom of the lifting frame (62) and a telescopic shaft (82) connected to the top of the wheel frame of the moving wheel (70); the bottom of the hollow shaft (81) is provided with an opening whose opening diameter is smaller than the internal diameter; the top of the telescopic shaft (82) is provided with a limiting disk (84) penetrating into the interior of the hollow shaft (81); and a buffer spring (83) is installed inside the hollow shaft (81).

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