Atmosphere roller furnace
By introducing a pitch adjustment structure and control structure into the atmosphere roller furnace, the automatic adjustment of the roller pitch between the transmission rollers is realized by using a drive motor and bevel gear system, which solves the problem of cumbersome roller pitch adjustment in the prior art and improves the adjustment efficiency and the practicality of the equipment.
Patent Information
- Application Number
- CN202422906480.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-27
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2034-11-27
AI Technical Summary
The existing atmosphere roller furnace requires adjusting the position of each roller when adjusting the roller gap, which is a cumbersome process and affects efficiency.
By adopting an adjustable gap structure and control structure, the automatic adjustment of the gap between the transmission rollers is achieved through a drive motor and a bevel gear system, which simplifies the gap adjustment process.
This improves the efficiency of roller gap adjustment and the practicality of the equipment, making the adjustment of the gap between the drive rollers more convenient and precise.
Smart Images
Figure CN223678214U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of roller furnace, specifically, relate to an atmosphere roller furnace. BACKGROUND
[0002] Atmosphere roller furnace is a kind of industrial heating equipment, mainly used for the heat treatment of metal, ceramic, glass, alloy and other materials in specific atmosphere environment. It is composed of one or more roller, and the workpiece needing heating is placed on the roller, and the workpiece continuously advances in the furnace by the movement of roller.
[0003] The adjustment of roll spacing affects the distance between the workpiece and the heating element, and then affects the efficiency of heat conduction. Too small roll spacing may cause the gap between workpieces to be too small, affecting the circulation of airflow in the furnace, resulting in uneven heat distribution. And too large roll spacing may make the heat contact area of workpiece and furnace wall smaller, thereby reducing the heat conduction effect. Therefore, different products require different roll spacing. In order to meet this demand, the existing atmosphere furnace is provided with mounting groove in the furnace, and the transmission roller is fixed by bolt and roller furnace.
[0004] Although this can realize the adjustment of roll spacing of roller furnace, there are still the following problems: since the adjustment of single roll spacing will affect the roll spacing of next roll, the position of each roll needs to be adjusted accordingly when adjusting the roll spacing each time, which is relatively cumbersome. UTILITY MODEL CONTENT
[0005] The utility model provides an atmosphere roller furnace, solve the problem of complicated roll spacing adjustment in the prior art, improve the practicability of equipment.
[0006] The technical scheme of the utility model is as follows:
[0007] An atmosphere roller furnace, comprising a fixing frame,
[0008] The fixing frame is provided with an atmosphere furnace, the atmosphere furnace is provided with a working cavity, the working cavity is provided with a gas generator and a heater, one side of the working cavity is provided with a first transmission box, the other side of the working cavity is provided with a second transmission box, the working cavity is provided with a plurality of transmission rollers, the first transmission box is provided with a driving structure for driving each transmission roller, the first transmission box and the second transmission box are both provided with a pitch adjusting structure for keeping the roll spacing between adjacent transmission rollers unchanged when adjusting the roll spacing between transmission rollers, and the pitch adjusting structure is further provided with a control structure for controlling the pitch adjusting structure.
[0009] Further, the driving structure comprises a first driving motor, the first driving motor is fixedly connected with the fixing frame, a driving shaft is rotationally connected in the first transmission box, an output shaft of the first driving motor is fixedly connected with the driving shaft, a plurality of first bevel gears are slidably connected on the driving shaft, a plurality of connecting pieces are further arranged in the first transmission box, the connecting pieces correspond to the transmission rollers one by one, the connecting pieces are rotationally connected with the transmission rollers, the second bevel gears are arranged on the transmission rollers close to the connecting pieces, and the first bevel gears are meshed with the second bevel gears.
[0010] Further, the driving shaft is provided with a limiting groove, and the first bevel gears are all provided with limiting pins, and the limiting pins are slidably connected with the limiting groove.
[0011] Further, the first transmission box is fixedly provided with a sliding rail, and the connecting pieces are fixedly provided with sliding pieces, the sliding pieces are in a 'convex' structure, and the sliding pieces are slidably connected with the sliding rail.
[0012] Further, the distance adjusting structure comprises a scissors, the scissors are arranged on the lower side of the connecting pieces, the connecting pieces are all rotationally connected with the scissors, and one end of the scissors is rotationally connected with the inner wall of the first transmission box.
[0013] Further, the two sides of the first bevel gears are respectively provided with first limiting plates and second limiting plates, the first limiting plates and the second limiting plates are fixedly connected, and the first limiting plates are fixedly connected with the connecting pieces.
[0014] Further, the control structure comprises a second driving motor, the first transmission box is further fixedly provided with third limiting plates and fourth limiting plates, the first limiting plates and the second limiting plates are further rotationally connected with a sliding rod and a lead screw, the first limiting plates and the second limiting plates are further provided with a sliding plate, the sliding plate is slidably connected with the sliding rod, the sliding plate is threadedly connected with the lead screw, and the sliding plate is fixedly connected with the connecting pieces.
[0015] The working principle and beneficial effects of the utility model are as follows:
[0016] The working process of the embodiment is as follows: when the distance between the roller beds in the roller bed furnace needs to be adjusted, the second driving motor is started, the sliding plate is driven to move through the lead screw, the transmission rollers are driven to move through the transmission plate and the scissors, and the distance between the adjacent transmission rollers reaches the preset value. After the adjustment is completed, the product to be processed is placed on the transmission roller, the first driving motor is started, the first bevel gear and the second bevel gear are driven to rotate through the driving shaft, so that the transmission rollers rotate synchronously, the product is driven into the working cavity, and heat treatment is carried out.
[0017] The embodiment is provided with an atmosphere furnace on the fixing frame, a plurality of transmission rollers are arranged in the atmosphere furnace, a first transmission box and a second transmission box are arranged on both sides of the atmosphere furnace, the roller distance between adjacent rollers is controlled through the distance adjusting structure and the control structure, the design of the prior art that the transmission rollers are installed in the installation groove is replaced, the efficiency of adjusting the roller distance between the transmission rollers is higher, and the embodiment has strong practicability. BRIEF DESCRIPTION OF DRAWINGS
[0018] The utility model will be explained in further detail below in combination with the drawings and specific embodiments.
[0019] Figure 1 It is a structural schematic view of the prior art;
[0020] Figure 2 It is a whole structural schematic view of the embodiment;
[0021] Figure 3 It is a first transmission box internal structure schematic in the embodiment Figure 1 ;
[0022] Figure 4 It is a first transmission box internal structure schematic in the embodiment Figure 2 ;
[0023] Figure 5 It is a second transmission box internal structure schematic in the embodiment Figure 1 ;
[0024] Figure 6 It is a second transmission box internal structure schematic in the embodiment Figure 2 ;
[0025] Figure 7 It is a first bevel gear and drive shaft connection structure schematic view in the embodiment;
[0026] Figure 8 It is a first drive motor connection structure schematic view in the embodiment.
[0027] In the drawings:
[0028] 1, atmosphere furnace; 11, heater; 12, gas generator; 13, working cavity; 14, fixing frame; 2, second transmission box; 3, first transmission box; 31, sliding rail; 4, transmission roller; 5, connecting piece; 51, sliding piece; 6, second bevel gear; 7, first bevel gear; 71, drive shaft; 711, limiting groove; 712, limiting pin; 713, first drive motor; 72, first limiting plate; 73, second limiting plate; 8, scissor; 91, third limiting plate; 92, fourth limiting plate; 93, sliding plate; 931, sliding rod; 932, screw rod; 94, second drive motor. DETAILED DESCRIPTION
[0029] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.
[0030] like Figures 2-8 As shown, this embodiment proposes an atmosphere roller furnace, the structure of which includes a fixed frame 14. In this embodiment, the atmosphere furnace 1 is mounted on the fixed frame 14, and the working chamber 13 is located inside the atmosphere furnace 1. A gas generator 12 and a heater 11 are located inside the working chamber 13. The gas generator used in this embodiment emits a gas determined by the working requirements, such as nitrogen or argon. A first transmission box 3 is located on one side of the working chamber 13, and a second transmission box 2 is located on the other side of the working chamber 13. Several transmission rollers 4 are located inside the working chamber 13 for transporting products. A drive structure is located in the first transmission box 3 to drive each transmission roller 4. An adjustment structure is located in the first transmission box 3 and the second transmission box 2 to maintain a constant distance between adjacent transmission rollers 4 when adjusting the roller distance between them. A control structure is located on the adjustment structure to control the adjustment structure.
[0031] The drive structure in this embodiment includes a first drive motor 713, which is fixedly connected to a fixed frame 14. A drive shaft 71 is rotatably mounted inside a first transmission box 3. The output shaft of the first drive motor 713 is fixedly connected to the drive shaft 71. Several first bevel gears 7 are slidably mounted on the drive shaft 71. Several connecting parts 5 are mounted inside the first transmission box 3, each corresponding to a transmission roller 4 and rotatably connected to it. Second bevel gears 6 are mounted on each transmission roller 4 near the end of the connecting part 5, and the first bevel gears 7 mesh with the second bevel gears 6. This design allows all transmission rollers 4 to rotate synchronously or stop rotating simply by starting the first drive motor 713, facilitating synchronous control of each rotating roller. This also makes operation more convenient for personnel.
[0032] In this embodiment, the limiting groove 711 is disposed on the drive shaft 71, and the limiting pin 712 is disposed on each of the first bevel gears 7, with the limiting pin 712 slidingly connected to the limiting groove 711. This design ensures that the first bevel gear 7 can rotate under the drive of the drive shaft 71, and can also slide under the action of the drive shaft 71.
[0033] The sliding rail 31 in the embodiment is fixed in the first transmission box 3, the sliding piece 51 is fixedly arranged at the bottom of the connecting piece 5, the sliding piece 51 is a "convex" type structure, and the sliding piece 51 is in sliding connection with the sliding rail 31. The design ensures that the sliding piece 51 stably slides in the sliding rail 31, and the sliding deviation phenomenon does not occur, and the structure is more stable and reliable.
[0034] The distance adjusting structure in the embodiment comprises the scissors 8 arranged at the lower side of the connecting piece 5, each connecting piece 5 is in rotary connection with the scissors 8, and one end of the scissors 8 is in rotary connection with the inner wall of the first transmission box 3. The design ensures that when one transmission roller 4 moves, the remaining transmission rollers 4 also synchronously move together. Moreover, the distances between the transmission rollers 4 after being changed are equal, and the efficiency of adjusting the distances between the transmission rollers 4 is higher.
[0035] The first limiting plate 72 and the second limiting plate 73 in the embodiment are arranged at the two sides of each first bevel gear 7, the first limiting plate 72 and the second limiting plate 73 are fixedly connected, and the first limiting plate 72 is fixedly connected with the connecting piece 5. The embodiment not only can control the movement of the first bevel gear 7 through the first limiting plate 72 and the second limiting plate 73, but also can ensure that the first bevel gear 7 can normally rotate together with the driving shaft 71.
[0036] The control structure in the embodiment comprises the second driving motor 94, the third limiting plate 91 and the fourth limiting plate 92 fixedly arranged in the first transmission box 3, the sliding rod 931 and the lead screw 932 rotatably arranged between the first limiting plate 72 and the second limiting plate 73, the sliding plate 93 arranged between the first limiting plate 72 and the second limiting plate 73, the sliding plate 93 in sliding connection with the sliding rod 931, the sliding plate 93 in threaded connection with the lead screw 932, and the sliding plate 93 fixedly connected with the connecting piece 5. The embodiment controls the movement of the sliding plate 93 through the lead screw 932. Since the rotary stroke of the lead screw 932 is much larger than the movement stroke of the sliding plate 93, the movement control of the sliding plate 93 is more accurate.
[0037] The working process of the embodiment is as follows: when it is necessary to adjust the distances between the roller beds in the roller bed furnace, the second driving motor 94 is started, the sliding plate 93 is driven to move through the lead screw 932, the transmission roller 4 is driven to move through the transmission plate and the scissors 8, and the distance between the adjacent transmission rollers 4 reaches the preset value. After the adjustment is completed, the product to be processed is placed on the transmission roller 4, the first driving motor 713 is started, the first bevel gear 7 and the second bevel gear 6 are driven to rotate through the driving shaft 71, the transmission roller 4 is synchronously rotated, the product is driven into the working cavity 13, and the heat treatment is performed.
[0038] The above is only a preferred embodiment of the utility model, and is not used to limit the utility model. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.
Claims
1. An atmosphere roller furnace comprising a fixed frame (14), characterized in that, the fixed frame (14) is provided with an atmosphere furnace (1), the atmosphere furnace (1) is provided with a working cavity (13), the working cavity (13) is provided with a gas generator (12) and a heater (11), one side of the working cavity (13) is provided with a first transmission box (3), the other side of the working cavity (13) is provided with a second transmission box (2), a plurality of transmission rollers (4) are arranged in the working cavity (13), the first transmission box (3) is provided with a driving structure for driving each transmission roller (4), the first transmission box (3) and the second transmission box (2) are both provided with a pitch adjusting structure for adjusting the pitch between the transmission rollers (4) while keeping the pitch between adjacent transmission rollers (4) unchanged, and the pitch adjusting structure is further provided with a control structure for controlling the pitch adjusting structure.
2. An atmosphere roller hearth furnace according to claim 1, characterised in that The driving structure comprises a first driving motor (713), the first driving motor (713) is fixedly connected with the fixed frame (14), a driving shaft (71) is rotatably connected in the first transmission box (3), the output shaft of the first driving motor (713) is fixedly connected with the driving shaft (71), a plurality of first bevel gears (7) are slidably connected on the driving shaft (71), a plurality of connecting pieces (5) are further arranged in the first transmission box (3), the connecting pieces (5) correspond to the transmission rollers (4) one by one, the connecting pieces (5) are rotatably connected with the transmission rollers (4), each transmission roller (4) is provided with a second bevel gear (6) at the end close to the connecting piece (5), and the first bevel gear (7) is meshed with the second bevel gear (6).
3. An atmosphere roller hearth furnace according to claim 2, characterised in that, The driving shaft (71) is provided with a limiting groove (711), and each first bevel gear (7) is provided with a limiting pin (712) which is slidably connected with the limiting groove (711).
4. An atmosphere roller hearth furnace according to claim 2, wherein, The first transmission box (3) is fixedly provided with a sliding rail (31), the connecting piece (5) is fixedly provided with a sliding piece (51) at the bottom, the sliding piece (51) is in a "convex" shape structure, and the sliding piece (51) is slidably connected with the sliding rail (31).
5. An atmosphere roller hearth furnace according to claim 2, wherein, The pitch adjusting structure comprises a scissors (8), the scissors (8) is arranged on the lower side of the connecting piece (5), each connecting piece (5) is rotatably connected with the scissors (8), and one end of the scissors (8) is rotatably connected with the inner wall of the first transmission box (3).
6. An atmosphere roller hearth furnace according to claim 5, characterised in that, Both sides of each first bevel gear (7) are respectively provided with a first limiting plate (72) and a second limiting plate (73), the first limiting plate (72) and the second limiting plate (73) are fixedly connected, and the first limiting plate (72) is fixedly connected with the connecting piece (5).
7. An atmosphere roller hearth furnace according to claim 6, characterised in that, The control structure comprises a second driving motor (94), a third limiting plate (91) and a fourth limiting plate (92) are fixed in the first transmission box (3), a sliding rod (931) and a screw rod (932) are rotatably connected between the first limiting plate (72) and the second limiting plate (73), a sliding plate (93) is arranged between the first limiting plate (72) and the second limiting plate (73), the sliding plate (93) is slidably connected with the sliding rod (931), the sliding plate (93) is threadedly connected with the screw rod (932), and the sliding plate (93) is fixedly connected with the connecting piece (5).