A post-weld adjustment mechanism for a vacuum furnace door hinge
By designing a post-weld adjustment mechanism for the vacuum furnace door hinge, the problem of deformation of the traditional large horizontal vacuum furnace door during opening and closing was solved, achieving precise docking between the furnace door and the furnace body, reducing processing costs and improving sealing performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANXI ZHONGDIAN NEW ENERGY TECH CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-07-14
AI Technical Summary
The furnace door of a traditional large horizontal vacuum furnace is prone to deformation during opening and closing, which affects the airtightness of the equipment. In addition, the high precision requirements of the parts lead to increased processing costs.
A post-weld adjustment mechanism for a vacuum furnace door hinge is designed, comprising a hinge structure and an adjustment component. The combination of a welding block, a rotating shaft, an L-shaped frame, and the adjustment component enables the rotational connection of the furnace door hinge. The combination of the adjustment component and the threaded connection enables the combination of adjustable components of the furnace door, thereby achieving the rotational adjustment and parallelism adjustment of the furnace door.
It improves the positional accuracy control of the furnace door and furnace body, reduces the cost of parts processing, optimizes the sealing performance, and improves the airtightness and stability of the equipment.
Smart Images
Figure CN224488120U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of large vacuum equipment, and relates to the installation and adjustment of the furnace door of a large vacuum furnace, specifically a post-weld adjustment mechanism for the furnace door hinge. Background Technology
[0002] With the development of technology, vacuum furnaces have become widely used in various fields, including the purification of carbon-based and silicon-based materials, powder metallurgy, and various high-temperature sintering industries. Demand is constantly increasing, making low-cost, high-stability, and highly compatible vacuum furnaces particularly important. Traditional large-scale horizontal vacuum purification equipment, due to its large size and weight, is prone to deformation of the steel used after overall welding. While reinforcing structures such as ribs can be used to strengthen the furnace body, the opening and closing of the horizontal furnace door requires hinge rotation. The door end must withstand significant torque and deformation, potentially affecting the equipment's airtightness and the internal vacuum environment, thus impacting equipment performance. Furthermore, if adjustment is not possible, high precision requirements for parts lead to higher manufacturing costs. Utility Model Content
[0003] This utility model overcomes the shortcomings of the prior art and proposes a post-weld adjustment mechanism for the hinge of a vacuum furnace door;
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0005] A post-welding adjustment mechanism for a vacuum furnace door hinge includes a hinge structure and adjustment components. The hinge structure comprises a welded block, a rotating shaft, an L-shaped frame, and a hinge adjustment body. A welded block is welded to the upper and lower sides of the vacuum furnace body, and a rotating shaft is connected to each welded block. One end of the L-shaped frame is rotatably connected to the rotating shaft. The other end of the L-shaped frame is connected to the hinge adjustment body, both upper and lower. The hinge adjustment body includes a hinge welded body, an adjustment rotating shaft, a furnace door welded body, a fastening nut, and a shoulder. The outer end face of the hinge welded body is welded to the other end of the L-shaped frame. The outer end face of the furnace door welded body is welded to the surface of the vacuum furnace door. The adjustment rotating shaft is threadedly connected to the furnace door welded body. The adjustment rotating shaft has a shoulder; the shoulder presses against the hinge welded body. Adjustment components are connected to the furnace door on both the upper and lower sides of the L-shaped frame.
[0006] Furthermore, each of the two welding blocks is connected to a rotating seat, and the rotating shaft is connected to the rotating seat.
[0007] Furthermore, the adjustment assembly includes a first welding plate, a second welding plate, a screw, and a nut; the first welding plate is welded to the furnace door, the second welding plate is welded to the L-shaped frame, and the first welding plate and the second welding plate are positioned opposite each other; the screw is connected between the first welding plate and the second welding plate, and the screw is fixed by the nut.
[0008] Further, the first welding plate top is welded on the furnace door near the rotating shaft side, and the second welding plate bottom end is welded on the L-shaped frame body.
[0009] The utility model discloses the beneficial effect produced relative to prior art is:
[0010] The utility model discloses the adjustable mechanism design has realized the regulation of large -scale vacuum furnace furnace door in vertical direction, furnace door rotation direction, has improved the fault tolerance when artificial welding, has improved furnace body and furnace door position precision control, has improved equipment sealing property, has reduced to part precision requirement and part processing cost. BRIEF DESCRIPTION OF DRAWINGS
[0011] Figure 1 It is the front view of the horizontal vacuum furnace of the utility model;
[0012] Figure 2 It is the plan view of the horizontal vacuum furnace of the utility model;
[0013] Figure 3 It is the left view of the horizontal vacuum furnace of the utility model;
[0014] Figure 4 It is the plan view of the hinge structure of the utility model;
[0015] Figure 5 It is the front view of the hinge structure of the utility model;
[0016] Figure 6 It is Figure 5 A-A plane view in the middle;
[0017] Figure 7 It is Figure 6 The enlarged view of B in the middle;
[0018] Figure 8 It is the structure schematic view of the adjusting assembly of the utility model.
[0019] Reference signs:
[0020] 1-furnace body, 2-furnace door, 3-hinge structure, 4-adjusting assembly, 301-welding block, 302-rotating shaft, 303-L-shaped frame body, 304-hinge adjusting body, 3041-hinge welding body, 3042-adjusting rotating shaft, 3043-furnace door welding body, 3044-fastening nut, 3045-shoulder, 401-first welding plate, 402-second welding plate, 403-screw rod, 404-nut. DETAILED DESCRIPTION
[0021] In order to make the technical problems, technical solutions and beneficial effects of the utility model clearer and more apparent, the utility model is further described in detail in combination with embodiments and drawings. It should be understood that the specific embodiments described herein are only used to explain the utility model and not to limit the utility model. The technical solutions of the utility model are described in detail below in combination with embodiments and drawings, but the protection scope is not limited thereby.
[0022] Referring to Figures 1 to 8 The embodiment provides a vacuum furnace door hinge post-welding adjusting mechanism, which comprises a hinge structure 3 and an adjusting assembly 4. The hinge structure 3 comprises a welding block 301, a rotating shaft 302, an L-shaped frame body 303 and a hinge adjusting body 304. A welding block 301 is welded to the upper and lower sides of the sidewall of a furnace body 1 of a vacuum furnace. Rotating seats are connected to the two welding blocks 301. Rotating shafts 302 are connected to the two rotating seats. The L-shaped frame body 303 is rotatably connected to the corresponding rotating shaft 302 at one end thereof. The other end of the L-shaped frame body 303 is connected to the hinge adjusting body 304.
[0023] The hinge adjusting body 304 comprises a hinge welding body 3041, an adjusting rotating shaft 3042, a furnace door welding body 3043, a fastening nut 3044 and a shaft shoulder 3045. The hinge welding body 3041 is welded to the other end of the L-shaped frame body 303. The furnace door welding body 3043 is welded to the surface of a furnace door 2 of the vacuum furnace. The adjusting rotating shaft 3042 is threadedly connected to the furnace door welding body 3043. The adjusting rotating shaft 3042 is provided with the shaft shoulder 3045. The shaft shoulder 3045 is pressed on the hinge welding body 3041. The hinge welding body 3041 and the adjusting rotating shaft 3042 lift the furnace door 2 through the shaft shoulder 3045.
[0024] Because the end of the furnace door 2 will sag due to gravity, the sagging distance cannot be predicted, and the hinge adjusting body 304 can be used to adjust the furnace door 2 up and down. When the height of the furnace door 2 is adjusted, the adjusting rotating shaft 3042 is only rotated to drive the furnace door welding body 3043 through threads, and then the furnace door 2 is moved up and down, the shaft shoulder 3045 is pressed on the hinge welding body 3041 after the adjustment is completed, and the fastening nut 3044 is screwed into the adjusting rotating shaft 3042 and tightened to ensure that it does not loosen, finally realizing vertical direction adjustment, ensuring that the relative position of the furnace door 2 and the furnace body 1 does not change, and ensuring the sealing property of the device.
[0025] The adjusting assembly 4 is connected between the upper and lower sides of the L-shaped frame body 303 and the furnace door 2; the adjusting assembly 4 comprises a first welding plate 401, a second welding plate 402, a screw rod 403 and a nut 404; the first welding plate 401 is welded on the furnace door 2 near the rotating shaft 302 at the top, the second welding plate 402 is welded on the L-shaped frame body 303 at the bottom, and the first welding plate 401 and the second welding plate 402 are opposite to each other; the screw rod 403 is connected between the first welding plate 401 and the second welding plate 402, and the screw rod 403 is fixed through the nut 404. Since the furnace door 2 and the hinge structure 3 are connected through the rotating shaft 302, when the contact surface of the furnace door 2 and the furnace body 1 is deformed, the relative position of the furnace door 2 and the hinge structure 3 can be adjusted by adjusting the distance between the nut 404 and the screw rod 403, so as to ensure the parallelism of the furnace door 2 and the furnace body 1 plane and ensure the sealing of the device.
[0026] The working principle of the post-weld adjusting mechanism of the furnace door hinge of the vacuum furnace is provided in the embodiment.
[0027] In order to ensure that the hinge structure 3 is adapted to the furnace body 1 and the furnace door 2, the furnace door 2 and the furnace body 1 should be connected by bolts first, and adjusted to the ideal position. Then the welding block 301 of the hinge structure 3 is firmly welded with the furnace body 1 at the fixed position, the L-shaped frame body 303 is connected with the furnace door 2 through the hinge adjusting body 304 by rotating the rotating shaft 302 to complete the on-site matching welding. After the welding of the furnace door 2 is completed, the adjusting assembly 4 is welded with the furnace door 2 and the L-shaped frame body 303 at the corresponding position, and after all the welding is completed, the bolts connecting the furnace door 2 and the furnace body 1 are removed, and the furnace door 2 can be normally opened.
[0028] After the furnace body 1 is welded and the furnace door 2 is opened, the end of the furnace door 2 will sag due to its own weight, and the sagging distance cannot be predicted. The hinge adjusting body 304 can be used to adjust the furnace door 2 up and down. By rotating the adjusting rotating shaft 3042, the furnace door welding body 3043 is driven through the thread, and then the furnace door 2 is moved up and down. After the adjustment is completed, the shaft shoulder 3045 is pressed on the hinge welding body 3041, and the fastening nut 3044 is screwed into the adjusting rotating shaft 3042 and tightened to ensure that it does not loosen, and finally the vertical direction adjustment is realized.
[0029] Since the furnace door 2 and the hinge structure 3 are connected through the rotating shaft 302, when the contact surface of the furnace door 2 and the furnace body 1 is deformed, the relative position of the furnace door 2 and the hinge structure 3 can be adjusted by adjusting the distance between the nut 404 and the screw rod 403, so as to ensure the parallelism of the furnace door 2 and the furnace body 1 plane and ensure the sealing of the device.
[0030] The above is further detailed description of the utility model made in combination with specific preferred embodiments, and cannot be deemed that the specific embodiments of the utility model are limited to this. For ordinary skilled persons in the technical field to which the utility model belongs, without departing from the utility model, a number of simple deductions or substitutions can also be made, and all should be deemed to belong to the utility model, and the patent protection scope is determined by the submitted claims.
Claims
1. A post-welding adjustment mechanism for a vacuum furnace door hinge, characterized in that, The system includes a hinge structure (3) and an adjustment assembly (4). The hinge structure (3) includes a welding block (301), a rotating shaft (302), an L-shaped frame (303), and a hinge adjustment body (304). A welding block (301) is welded to the upper and lower sides of the side wall of the vacuum furnace body (1). A rotating shaft (302) is connected to the welding block (301). One end of the L-shaped frame (303) is rotatably connected to the rotating shaft (302) at the upper and lower sides. The other end of the L-shaped frame (303) is connected to the hinge adjustment body (304) at the upper and lower sides. The hinge adjustment body (304) includes a hinge welding body (3041) and an adjustment rotating shaft (304). 2) Furnace door welded body (3043), fastening nut (3044) and shoulder (3045); the outer end face of the hinge welded body (3041) is welded to the other end of the L-shaped frame (303); the outer end face of the furnace door welded body (3043) is welded to the surface of the furnace door (2) of the vacuum furnace; the adjusting shaft (3042) is threadedly connected to the furnace door welded body (3043); the adjusting shaft (3042) is provided with a shoulder (3045); the shoulder (3045) is pressed on the hinge welded body (3041); the upper and lower sides of the L-shaped frame (303) are connected to the furnace door (2) with adjusting components (4).
2. The vacuum furnace door hinge post-weld adjustment mechanism according to claim 1, characterized in that, Both welding blocks (301) are connected to rotating seats, and the rotating shaft (302) is connected to the rotating seats.
3. The vacuum furnace door hinge post-weld adjustment mechanism according to claim 1, characterized in that, The adjustment assembly (4) includes a first welding plate (401), a second welding plate (402), a screw (403), and a nut (404); the first welding plate (401) is welded to the furnace door (2), the second welding plate (402) is welded to the L-shaped frame (303), and the first welding plate (401) and the second welding plate (402) are positioned opposite each other; the screw (403) is connected between the first welding plate (401) and the second welding plate (402), and the screw (403) is fixed by the nut (404).
4. The vacuum furnace door hinge post-weld adjustment mechanism according to claim 3, characterized in that, The top of the first welding plate (401) is welded to the furnace door (2) on the side near the rotating shaft (302), and the bottom of the second welding plate (402) is welded to the L-shaped frame (303).