Large zinc impregnation furnace

Abstract

The utility model discloses a large zinc impregnation furnace. The large zinc impregnation furnace comprises a control box, a rotating mechanism, an opening and closing driving mechanism, a cylindrical shell and two zinc impregnation bins, according to the large zinc impregnation furnace, the two zinc impregnation bins are utilized, so that the zinc impregnation furnace can contain a large number of workpieces at the same time; the rotating mechanism is used for driving the sherardizing bins to rotate, the two heating shells contain the two sherardizing bins, the two sherardizing bins are heated through the heating unit, and heating sherardizing of workpieces can be achieved; the two heating shells are driven by the opening and closing driving mechanism to be close to each other and closed, so that the zinc impregnation bin is located in the cylindrical shell, and heat loss is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a zinc infiltration furnace, especially a large-scale zinc infiltration furnace. BACKGROUND

[0002] Zinc infiltration is mainly used for improving the corrosion resistance of steel materials in the atmosphere and natural water environment, and its process method is similar to that of aluminum infiltration, which can be divided into immersion plating type and diffusion type. The surface structure obtained by hot dip galvanizing is composed of diffusion layer and zinc plating layer, which belongs to immersion plating type zinc infiltration. The diffusion type zinc infiltration layer is completely composed of diffusion layer, and is obtained by powder zinc infiltration and vacuum zinc infiltration process; the existing diffusion type zinc infiltration furnace usually has a small structure, and it is difficult to accommodate and process a large number of workpieces. SUMMARY

[0003] The utility model discloses a large-scale zinc infiltration furnace, which can accommodate and process a large number of workpieces at the same time.

[0004] Technical scheme: the large-scale zinc infiltration furnace provided by the utility model comprises a control box, a rotating mechanism, an opening and closing driving mechanism, a cylindrical shell and two zinc infiltration bins; the cylindrical shell comprises two heating shells; the two heating shells are both installed on the opening and closing driving mechanism, and the two heating shells are driven by the opening and closing driving mechanism to move close to each other or move away from each other; the two zinc infiltration bins are both installed on the rotating mechanism, and the two zinc infiltration bins are driven by the rotating mechanism to rotate; a heating unit for heating is installed in the cylindrical shell; a controller is installed in the control box; a key panel electrically connected with the controller is installed on the control box; the heating unit, the opening and closing driving mechanism and the rotating mechanism are all driven and controlled by the controller.

[0005] Further, the rotating mechanism comprises two rotating units; the rotating unit comprises a supporting bottom plate, a rotating driving motor, a rotating support seat and a transmission gear box; the two zinc infiltration bins are fixedly connected through a connecting pipe, and coaxial rotating support pipes are arranged on the two zinc infiltration bins; the rotating support seat, the rotating driving motor and the transmission gear box are all installed on the supporting bottom plate; two rotating support wheels for supporting the rotating support pipes are rotatably installed on the top of the rotating support seat; the output end of the transmission gear box drives the rotating support pipes to rotate through a gear transmission pair; the output shaft of the rotating driving motor is connected with the input shaft of the transmission gear box, and the rotating driving motor is electrically connected with the controller through a rotating driving circuit.

[0006] Further, an inner side disc is coaxially arranged on the connecting pipe; inner side supports are fixedly arranged on the two heating shells; inner side support wheels for rotating and supporting the inner side disc are rotatably installed on the two inner side supports.

[0007] Further, the heating unit comprises a plurality of ceramic heating tiles; each ceramic heating tile is uniformly distributed on the inner side wall of the two heating shells and is controlled by the controller; and a temperature sensor electrically connected with the controller is installed on one heating shell in a through manner.

[0008] Further, the opening and closing driving mechanism comprises an opening and closing driving motor, two synchronous driving shafts and two opening and closing guide tracks; two opening and closing driving seats fixed on the two heating shells are slidably installed on the two opening and closing guide tracks respectively; an opening and closing driving screw for driving the relative movement of the two opening and closing driving seats is rotatably installed in the opening and closing guide track; the two synchronous driving shafts are drivingly connected between the two opening and closing driving screws through a bevel gear pair; the opening and closing driving motor is used for driving one of the opening and closing driving screws to rotate and is electrically connected with the controller through an opening and closing driving circuit.

[0009] Further, the utility model also comprises three moving support units; the moving support unit comprises a moving support track and two moving support seats; the two moving support seats are longitudinally slidably installed on the moving support track; the two moving support seats support the two heating shells through moving struts respectively.

[0010] Further, the zinc infiltration bin comprises a zinc infiltration shell, a zinc infiltration top cover and a plurality of zinc infiltration units; the zinc infiltration top cover is detachably installed at the top opening of the zinc infiltration shell; each zinc infiltration unit is spacedly installed on the zinc infiltration top cover and is located in the zinc infiltration shell.

[0011] Further, the zinc infiltration unit comprises a zinc infiltration basket, four L-shaped rods and four positioning rods; the four positioning rods are fixed on the zinc infiltration top cover; the four L-shaped rods are fixed on the zinc infiltration basket and are detachably installed on the four positioning rods respectively; the top opening of the zinc infiltration basket is used for being close to the zinc infiltration top cover.

[0012] The utility model discloses compared with prior art, its beneficial effect is: utilize two zinc infiltration bins to make zinc infiltration furnace can accommodate a large number of workpieces simultaneously, utilize rotating mechanism to drive zinc infiltration bin to rotate, two heating shells accommodate two zinc infiltration bins, and heat two zinc infiltration bins through heating unit, can realize the heating zinc infiltration of workpiece, utilize opening and closing driving mechanism to drive two heating shells to close mutually, make zinc infiltration bin be in cylindrical shell, reduce heat loss. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 It is the structural schematic diagram of the utility model;

[0014] Figure 2 It is the front view of the utility model;

[0015] Figure 3 It is the left view of the utility model;

[0016] Figure 4It is a sectional view of the zinc infiltration bin of the utility model;

[0017] Figure 5 It is a schematic diagram of installation of the storage unit of the utility model;

[0018] Figure 6 It is a sectional view of the opening and closing guide track of the utility model;

[0019] Figure 7 It is a plan view of the storage basket of the utility model;

[0020] Figure 8 It is a schematic diagram of circuit structure of the utility model;

[0021] In the figure: 1, control box; 2, button panel; 3, display screen; 4, heating shell; 5, mobile support column; 6, mobile support base; 7, walking wheel; 8, mobile support track; 9, opening and closing drive motor; 10, synchronous drive shaft; 11, opening and closing guide track; 12, opening and closing drive screw; 13, rotary support base; 14, rotary support wheel; 15, support bottom plate; 16, transmission gear box; 17, rotary drive motor; 18, rotary support tube; 19, temperature sensor; 20, heat preservation interlayer; 21, semicircular notch; 22, inner side disc; 23, inner side support wheel; 24, zinc infiltration shell; 25, zinc infiltration top cover; 26, locking flange; 27, swing bolt; 28, locking nut; 29, lifting lug; 30, locking notch; 31, zinc infiltration basket; 32, positioning rod; 33, L-shaped rod; 34, positioning column; 35, positioning tube; 36, opening and closing drive base; 37, inner side support; 38, ceramic heating tile. DETAILED DESCRIPTION

[0022] The technical scheme of the utility model will be described in detail below with reference to the drawings, but the protection scope of the utility model is not limited to the described embodiments.

[0023] In the utility model, unless another explicit provision and limitation, the terms "installation", "connection", "fixing" and other terms should be understood broadly, for example, can be fixed connection, can be detachable connection, or integrated; can be directly connected, can be indirectly connected through intermediate medium, can be the communication of two elements or the interaction relationship of two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] In the description of the utility model, it is understood that the terms "left", "right", "front", "back", "top", "bottom", "top", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of the simplified description of the utility model, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0025] Embodiment 1:

[0026] As Figures 1-8 Indicated, the utility model provides a kind of large-scale zinc infiltration furnace, including: control box 1, rotating mechanism, opening and closing drive mechanism, cylindrical shell and two zinc infiltration bins;Cylindrical shell includes two heating shells 4;

[0027] Two heating shells 4 are all installed on opening and closing drive mechanism, and two heating shells 4 are driven by opening and closing drive mechanism to close each other or open each other;Two zinc infiltration bins are all installed on rotating mechanism, and two zinc infiltration bins are rotated by rotating mechanism;Two heating shells 4 are used to set two zinc infiltration bins to clamp cover, and two zinc infiltration bins are heated by heating unit;Control box 1 is installed on one heating shell 4;Controller is installed in control box 1;Display screen 3 and key panel 2 electrically connected with controller are installed on control box 1;Heating unit, opening and closing drive mechanism and rotating mechanism are all driven and controlled by controller.

[0028] Two zinc infiltration bins are used to make zinc infiltration furnace can accommodate a large number of workpieces simultaneously;Rotating mechanism is used to drive zinc infiltration bin to rotate, and two heating shells 4 accommodate two zinc infiltration bins, and two zinc infiltration bins are heated by heating unit, so that the heating zinc infiltration of workpiece can be realized;Opening and closing drive mechanism is used to drive two heating shells 4 to close each other, so that zinc infiltration bin is in cylindrical shell, and heat loss is reduced.

[0029] Further, rotating mechanism includes two rotating units;Rotating unit includes support base plate 15, rotating drive motor 17, rotating support seat 13 and transmission gear box 16;The opposite side of two zinc infiltration bins is fixedly connected transversely by connecting pipe, and rotating support pipe 18 is coaxially arranged transversely on the far side of two zinc infiltration bins;Rotating support seat 13 is installed on support base plate 15;Two axis-parallel rotating support wheels 14 are rotatably installed on the top of rotating support seat 13;Two rotating support pipes 18 are rotatably supported on the rotating support wheels 14 of two rotating units respectively;Transmission gear box 16 is installed on support base plate 15, and the output end drives rotating support pipe 18 to rotate through gear transmission pair;Rotating drive motor 17 is installed on support base plate 15, the output shaft of rotating drive motor 17 is opposite to the input shaft of transmission gear box 16, and is electrically connected with controller through rotating drive circuit.

[0030] The input shaft of the transmission gear box 16 is driven to rotate by the rotary drive motor 17, the output shaft of the transmission gear box 16 drives the rotary support pipe 18 to rotate through a gear transmission pair, thereby driving the two zinc infiltration chambers to rotate, and the two rotary drive motors 17 drive the two rotary support pipes 18 to rotate synchronously; the two zinc infiltration chambers are connected through the connecting pipe and the two rotary support pipes 18, which facilitates the connection with the external vacuum device, vacuumizes the zinc infiltration chambers, and realizes vacuum zinc infiltration; the rotary support pipe 18 is rotatably supported by the two rotary support wheels 14, thereby reducing the rotary friction.

[0031] Further, the heating unit includes a plurality of ceramic heating tiles 38; a heat preservation interlayer 20 is arranged in the side wall of each heating shell 4; a semicircular notch 21 is arranged on the opposite edges at both ends of the two heating shells 4; the opposite two semicircular notches 21 form a through hole; the rotary support pipes 18 of the two rotary units respectively rotatably pass through the two through holes; each ceramic heating tile 38 is uniformly distributed on the inner side wall of the two heating shells 4, and an electric control switch electrically connected with the controller is connected in series on the total power supply line of the ceramic heating tile 38; a temperature sensor 19 with a detection end inserted into the heating shell 4 is throughly arranged on one of the heating shells 4, and the temperature sensor 19 is electrically connected with the controller.

[0032] The ceramic heating tile 38 is used to heat the zinc infiltration chamber in the cylindrical shell; the through hole formed by the semicircular notch 21 avoids the two rotary support pipes 18; the temperature sensor 19 is used to facilitate the controller to monitor the temperature in the cylindrical shell.

[0033] Further, the opening and closing drive mechanism includes an opening and closing drive motor 9, two synchronous drive shafts 10 and two opening and closing guide rails 11; the two opening and closing guide rails 11 are longitudinally arranged on the ground; the opening and closing drive seats 36 are longitudinally and slidingly arranged on the front and rear sides of the two opening and closing guide rails 11; the upper ends of the opening and closing drive seats 36 on the front and rear sides are respectively fixed on the two heating shells 4; the opening and closing drive screws 12 are rotatably and longitudinally arranged in the two opening and closing guide rails 11; the thread pitches of the front and rear sides of the opening and closing drive screws 12 are the same and the rotation directions are opposite, and the front and rear sides of the opening and closing drive screws 12 are respectively threadedly and rotatably inserted into the corresponding two opening and closing drive seats 36; the two synchronous drive shafts 10 are respectively rotatably connected between the front and rear ends of the two opening and closing guide rails 11, and the two ends of the synchronous drive shaft 10 are respectively connected with the two opening and closing drive screws 12 through a bevel gear pair; the opening and closing drive motor 9 is used to drive one of the opening and closing drive screws 12 to rotate, and is electrically connected with the controller through an opening and closing drive circuit.

[0034] The open-close driving motor 9 is used to drive one of the open-close driving screws 12 to rotate, and the two synchronous driving shafts 10 are used to drive the other open-close driving screw 12 to rotate through the bevel gear pair, so that the two open-close driving screws 12 rotate synchronously, and the two open-close driving seats 36 on the front side and the two open-close driving seats 36 on the rear side drive the two heating housings 4 to move relative to each other, thereby achieving the open-close driving of the two heating housings 4.

[0035] Further, the zinc infiltration device further comprises three moving support units; each moving support unit comprises a moving support rail 8 and two moving support seats 6; the moving support rail 8 is longitudinally arranged on the ground; a long hole is arranged on the upper side of the moving support rail 8; the two moving support seats 6 are longitudinally slidably arranged through the long hole; a moving support column 5 is fixed on each moving support seat 6; the upper ends of the two moving support columns 5 are respectively fixed on the two heating housings 4; a plurality of walking wheels 7 that longitudinally walk in the moving support rail 8 are rotatably arranged on each moving support seat 6.

[0036] The walking wheels 7 of the two moving support seats 6 walk in the moving support rail 8, which can improve the moving stability of the moving support seat 6 and share the load of the open-close driving mechanism.

[0037] Further, an inner disc 22 is coaxially arranged on the connecting pipe; an inner support seat 37 is correspondingly arranged through the bottom of each heating housing 4; the two inner support seats 37 are respectively fixed on the two moving support seats 6 of the middle moving support unit; an inner support wheel 23 for rotatingly supporting the inner disc 22 is rotatably arranged on the upper side of each inner support seat 37. The cooperation between the inner disc 22 and the inner support wheel 23 can support the connecting pipe between the two zinc infiltration bins, thereby preventing the connecting pipe from bending and affecting the rotation of the two zinc infiltration bins.

[0038] Further, the zinc infiltration bin comprises a zinc infiltration housing 24, a zinc infiltration top cover 25, and a plurality of zinc infiltration units; the two ends of the connecting pipe are respectively fixed on the opposite sides of the zinc infiltration housings 24 of the two zinc infiltration bins in a communicating manner; the rotating support pipe 18 is fixed on the zinc infiltration housing 24 in a communicating manner; the zinc infiltration top cover 25 is used to cover the top opening of the zinc infiltration housing 24; a locking flange 26 is arranged on the opposite side edges of the zinc infiltration housing 24 and the zinc infiltration top cover 25; a plurality of swing bolts 27 are swingly arranged on the zinc infiltration housing 24; a locking groove 30 for buckling each swing bolt 27 is arranged on each locking flange 26; a locking nut 28 is threadedly screwed on the swing bolt 27 and tightly presses on the upper locking flange 26; a lifting lug 29 is arranged on the top surface of the zinc infiltration top cover 25; each zinc infiltration unit is spacedly arranged on the zinc infiltration top cover 25 and located in the zinc infiltration housing 24.

[0039] The zinc infiltration shell 24 is filled with powder, each zinc infiltration unit is arranged with a workpiece, and a large number of workpieces can be simultaneously subjected to zinc infiltration processing; the cooperation between the locking flanging 26, the swing bolt 27, the locking nut 28 and the locking notch 30 can realize detachable installation between the zinc infiltration shell 24 and the zinc infiltration top cover 25; the installation mode of the zinc infiltration unit facilitates feeding and discharging, and each zinc infiltration unit can be taken out by taking down the zinc infiltration top cover 25 through the lifting lug 29, without taking out the zinc infiltration shell 24.

[0040] Further, the zinc infiltration unit comprises a zinc infiltration basket 31, four L-shaped rods 33 and four positioning rods 32; the positioning column 34 is arranged at the bottom of the zinc infiltration basket 31; a plurality of positioning pipes 35 are arranged on the inner bottom surface of the zinc infiltration shell 24 in a spaced manner; the positioning column 34 of each zinc infiltration unit is arranged for positioning and inserting into each positioning pipe 35; the horizontal rods of the four L-shaped rods 33 are fixed on the bottom surface of the zinc infiltration basket 31, and the end portions of the horizontal rods are fixed on the positioning column 34; the vertical rods are respectively fixed on the four vertical side surfaces of the zinc infiltration basket 31; the upper ends of the four positioning rods 32 are fixed on the inner top surface of the zinc infiltration top cover 25; the lower ends of the four positioning rods 32 are respectively arranged for pulling on the upper ends of the vertical rods of the four L-shaped rods 33; the four positioning rods 32 are respectively arranged for abutting the four vertical side surfaces of the zinc infiltration basket 31; the top opening of the zinc infiltration basket 31 is arranged for abutting the inner top surface of the zinc infiltration top cover 25.

[0041] The cooperation between the positioning column 34 and the positioning pipe 35 realizes positioning and supporting of the bottom of the zinc infiltration basket 31, and balances the shaking of the zinc infiltration basket 31 caused by the rolling of the workpiece; the cooperation between the four L-shaped rods 33 and the four positioning rods 32 can realize detachable installation of the zinc infiltration basket 31, and the opening of the zinc infiltration basket 31 abuts the inner top surface of the zinc infiltration top cover 25, so that the workpiece is prevented from leaking out of the zinc infiltration basket 31.

[0042] In the large-scale zinc infiltration furnace, the controller adopts an existing single-chip microcomputer control module; the rotary driving motor 17 and the opening and closing driving motor 9 both adopt an existing stepping motor, and the rotary driving circuit and the opening and closing driving circuit adopt corresponding stepping motor driving circuits; the ceramic heating tile 38 adopts an existing ceramic heating tile, and the electric control switch adopts an existing electric control switch; the temperature sensor 19 adopts an existing temperature sensor; and the display screen 3 adopts an existing display screen.

[0043] As described above, although the present application has been shown and described with respect to a certain preferred embodiments thereof, it is to be understood that the present application is not limited to the particular preferred embodiments, and various changes and modifications can be made without departing from the spirit and scope of the present application as defined in the appended claims.

Claims

1. A large zinc-diffusion furnace, characterized in that: It includes a control box (1), a rotating mechanism, an opening and closing drive mechanism, a cylindrical shell, and two zinc infiltration chambers; the cylindrical shell includes two heating shells (4); both heating shells (4) are mounted on the opening and closing drive mechanism, which drives the two heating shells (4) to close close to each other or open away from each other; both zinc infiltration chambers are mounted on the rotating mechanism, which drives the two zinc infiltration chambers to rotate; a heating unit for heating is installed inside the cylindrical shell; a controller is installed inside the control box (1); a keypad (2) electrically connected to the controller is installed on the control box (1); the heating unit, the opening and closing drive mechanism, and the rotating mechanism are all driven and controlled by the controller.

2. The large zinc-diffusion furnace according to claim 1, characterized in that: The rotating mechanism includes two rotating units; each rotating unit includes a support base plate (15), a rotating drive motor (17), a rotating support base (13), and a transmission gearbox (16); the two zinc infiltration bins are fixedly connected by connecting pipes, and coaxial rotating support pipes (18) are provided on both zinc infiltration bins; the rotating support base (13), the rotating drive motor (17), and the transmission gearbox (16) are all mounted on the support base plate (15); two rotating support wheels (14) for supporting the rotating support pipes (18) are rotatably mounted on the top of the rotating support base (13); the output end of the transmission gearbox (16) drives the rotating support pipes (18) to rotate through a gear transmission pair; the output shaft of the rotating drive motor (17) is connected to the input shaft of the transmission gearbox (16), and is electrically connected to the controller through a rotating drive circuit.

3. The large zinc-diffusion furnace according to claim 2, characterized in that: An inner disc (22) is coaxially arranged on the connecting pipe; an inner support (37) is fixed on each of the two heating shells (4); and an inner support wheel (23) for rotating and supporting the inner disc (22) is rotatably installed on each of the two inner supports (37).

4. The large zinc-diffusion furnace according to claim 1, characterized in that: The heating unit includes several ceramic heating tiles (38); each ceramic heating tile (38) is evenly distributed on the inner sidewall of two heating shells (4) and is controlled by a controller; a temperature sensor (19) electrically connected to the controller is installed through one of the heating shells (4).

5. The large zinc-diffusion furnace according to claim 1, characterized in that: The opening and closing drive mechanism includes an opening and closing drive motor (9), two synchronous drive shafts (10), and two opening and closing guide rails (11); two opening and closing drive seats (36) are slidably mounted on the two opening and closing guide rails (11) and respectively fixed on the two heating shells (4); an opening and closing drive screw (12) for driving the two opening and closing drive seats (36) to move relative to each other is rotatably mounted in the opening and closing guide rail (11); the two synchronous drive shafts (10) are connected between the two opening and closing drive screws (12) through a bevel gear pair; the opening and closing drive motor (9) is used to drive one of the opening and closing drive screws (12) to rotate, and is electrically connected to the controller through the opening and closing drive circuit.

6. The large zinc-diffusion furnace according to claim 1, characterized in that: It also includes three movable support units; the movable support unit includes a movable support rail (8) and two movable support seats (6); the two movable support seats (6) are longitudinally slidably installed on the movable support rail (8); the two movable support seats (6) support the two heating shells (4) respectively through movable pillars (5).

7. The large zinc-diffusion furnace according to claim 1, characterized in that: The zinc infiltration chamber includes a zinc infiltration shell (24), a zinc infiltration top cover (25), and multiple zinc infiltration units; the zinc infiltration top cover (25) is detachably installed at the top opening of the zinc infiltration shell (24); each zinc infiltration unit is installed at intervals on the zinc infiltration top cover (25) and located inside the zinc infiltration shell (24).

8. The large zinc-diffusion furnace according to claim 7, characterized in that: The zinc diffusion unit includes a zinc diffusion basket (31), four L-shaped rods (33) and four positioning rods (32); the four positioning rods (32) are fixed on the zinc diffusion top cover (25); the four L-shaped rods (33) are fixed on the zinc diffusion basket (31) and are detachably installed on the four positioning rods (32); the top opening of the zinc diffusion basket (31) is used to be close to the zinc diffusion top cover (25).

Images