Multifunctional furnace loading device for heat treatment furnace

Abstract

A multifunctional loading device for a heat treatment furnace is provided; it consists of a common car body and a functional structure module; the functional structure module consists of a mold preheating module and a rail preheating module; the common car body has an anti-overturning frame for mounting a driving running unit; the driving running unit realizes the concentric displacement, delivery and discharge of the common car body and the functional structure module thereon toward the heat treatment furnace; the functional structure module includes a sealing unit; the sealing unit has a non-asbestos insulation material. The present invention solves the technical problems of the prior art lower loading furnace, such as exposed asbestos, single function and low efficiency; greatly improves the preheating efficiency of molds and rails, eliminates the hidden dangers of asbestos occupational hazards; improves the level of equipment tooling, saves mold preheating time, and increases the production operation time of the forging process; has a reasonable structure, is simple and practical, has strong versatility, is easy to install and maintain, and is convenient for design and construction; is particularly suitable for the production of rail switches, and can be widely used in the field of rail heel and end forging.

Description

Technical Field

[0001] The invention belongs to the technical field of box-type furnace charging devices in mechanical engineering, and in particular relates to a multifunctional furnace charging device for a heat treatment furnace. Background Art

[0002] At present, the application of domestic box-type heat treatment furnace equipment is single in method and primitive in operation, with the problem of asbestos exposure and serious occupational hazards when manual workers are exposed to asbestos.

[0003] Moreover, for a long time, the loading of domestic box-type heat treatment furnaces has been done manually, with overhead cranes assisting in the loading operation. Especially the furnace entry operation is generally done by manual pushing and pulling, which is inefficient and poses a safety hazard.

[0004] Furthermore, the existing box-type heat treatment furnace's loading car has a single function, which can only realize the preheating of rail parts or the preheating of molds, and its functions are limited.

[0005] For example, when rails are preheated in the furnace, the lack of a dedicated support device to facilitate the flattening and unfolding of the rails causes the rails to stack on top of each other. Especially during heat treatment operations, the forging section at the front end of the rails is severely deformed and irregular, which creates great difficulties for the straightening and top adjustment of the rails in subsequent processes, resulting in continuously low top adjustment efficiency.

[0006] For another example, when preheating the mold in the furnace, the existing workshop forging molds have long adopted the primitive method of baking in the furnace. The preheating operation of the mold in the forging process is primitive and inconvenient, making it difficult to effectively ensure the quality of mold preheating; in particular, the mold preheating cannot be carried out in advance, and when the mold is preheated, it can only be preheated on the forging production line, resulting in the forging step of the forging production line being unable to produce operations, further reducing the production efficiency of the forging process. At the same time, the unused box-type normalizing furnace is almost idle, resulting in the contradiction between the forging step and the preheating step, causing the uncoordinated production resources and the emergence of low production efficiency. In this regard, the following improved technical solutions are proposed. Summary of the Invention

[0007] The technical problem solved by the present invention is to provide a multifunctional furnace loading device for a heat treatment furnace, which solves the technical problems of exposed asbestos, single function and low efficiency in the prior art bottom loading furnace.

[0008] The present invention adopts a technical solution: a multifunctional charging device for a heat treatment furnace, comprising a multifunctional charging device for concentrically transferring materials toward the heat treatment furnace; the multifunctional charging device comprises a common vehicle body and a functional structural module; the functional structural module is detachably mounted on the common vehicle body, and the common vehicle body carries the functional structural module to automatically move, feed, or discharge materials toward the furnace body. The functional structural module comprises a mold preheating module and a rail preheating module; the mold preheating module is used for preheating the multi-layer flat lay of the movable block mold; the rail preheating module is used for preheating the flat lay of the rail to be preheated. The common vehicle body comprises an anti-overturning frame; the anti-overturning frame is equipped with a drive running unit; the drive running unit enables the common vehicle body and the functional structural module carried by the common vehicle body to concentrically move, feed, or discharge materials toward the heat treatment furnace. The functional structural module further comprises a sealing unit; the sealing unit is assembled and mounted in combination with the mold preheating module and the rail preheating module. The sealing unit comprises an insulating material; the insulating material of the sealing unit is non-asbestos insulating material.

[0009] In the above technical solution, further: a counterweight unit is provided at the rear of the public vehicle body; the counterweight unit is provided with a counterweight mounting platform with a right-angle structure, and the counterweight mounting platform is provided with oblique triangular inclined tie bars to prevent the counterweight mounting platform from deformation; counterweight blocks are placed on the counterweight mounting platform; and each counterweight block is respectively provided with a lifting ring.

[0010] In the above technical solution, further: a counterweight support roller is provided at the bottom of the counterweight unit; the counterweight support roller is adapted to the rolling friction of the furnace loading track used to support the linear displacement of the common car body.

[0011] In the above technical solution, further: the anti-overturning frame has a frame body; the frame body is a welded frame structure; the frame body of the welded frame structure is provided with vertical downward anti-overturning supports around it; and the frame body of the welded frame structure is installed with a driving running unit.

[0012] In the above technical solution, preferably: a functional structure mounting plate is provided on the front side of the top end of the frame body; the functional structure mounting plate is used for fastening and detachably mounting the mold preheating module or the rail preheating module.

[0013] In the above technical solution, further: a reversible cover for shielding the driving and traveling unit is provided on the rear side of the middle part of the top end of the frame body; and the reversible cover is provided with a handle.

[0014] In the above technical solution, preferably: the driving running unit is composed of a driving motor, a reducer, a chain drive or gear transmission mechanism, a driving wheel group, and a driven wheel group in sequence; the driving wheel group and the driven wheel group are adapted to the rolling friction of the furnace loading track, and the driving wheel group is arranged on the rear side of the driven wheel group.

[0015] In the above technical solution, further: a furnace mouth position detection sensor is installed at the front end of the public vehicle body; the furnace mouth position detection sensor is connected to the controller input end; the controller output end is connected to the drive motor control input end of the driving running unit.

[0016] In the above technical solution, further: the public car body includes a furnace loading rail parallel to the center line of the heat treatment furnace; a mechanical hard limit assembly is installed on the furnace loading rail near the furnace mouth of the heat treatment furnace; the mechanical hard limit assembly is used for mechanically blocking and hard limiting the public car body near the furnace mouth of the heat treatment furnace, that is, to realize the mechanical prevention of over-displacement of the public car body after the driving running unit is stopped; the mechanical hard limit assembly includes a hard limit slot fixedly installed vertically upward on the furnace loading rail; the hard limit slot is plugged into and adapted to install a hard limit block protruding from the upper end face of the furnace loading rail; the hard limit block is used for mechanical blocking to limit over-displacement of the public car body.

[0017] In the above technical solution, further: the common vehicle body has a vehicle body cable arrangement; the vehicle body cable arrangement is used for integrating all cables of the multifunctional furnace loading device.

[0018] In the above technical solution, further: the mold preheating module includes a mold furnace loading main body support; the mold furnace loading main body support is horizontally extended and fixedly installed at the front end of the public vehicle body; the mold furnace loading main body support is provided with a multi-layer mold rack; each layer of the multi-layer mold rack has a rack body; the upper end of the rack body is provided with a plug-in mother part, and the lower end of the rack body is provided with a plug-in sub-part; the symmetrical side of the rack body is provided with a rack hook; wherein the upper rack body is plugged into the plug-in mother part at the top end of the lower rack body through the plug-in sub-part at its bottom end, so as to realize the multi-layer stacking, plug-in and adaptation connection of the multi-layer rack body; each rack body is used to neatly place the movable block molds to be preheated.

[0019] In the above technical solution, further: the rail preheating module includes a front support of the rail loading furnace main body and a rear support of the rail loading furnace main body; the front support of the rail loading furnace main body and the rear support of the rail loading furnace main body are respectively fixedly installed at the front and rear ends of the public car body, and the front and rear supports are both U-shaped structures, and a supporting cross bar is provided in the middle of the U-shaped structure, and the supporting cross bar is used to horizontally raise and support the rail to be preheated, and a vertical lever rod body is provided at the top of the U-shaped structure, which extends vertically upward to protrude from the upper end surface of the rail to be preheated, and the lever rod body is used to prevent the rail to be preheated from slipping.

[0020] In the above technical solution, further: the sealing unit includes an upper sealing unit and a lower sealing unit; the upper sealing unit is plug-in connected to the functional structure module; the lower sealing unit is fastened to the functional structure module; a vertical guide groove is provided vertically which is fastened to the functional structure module; the vertical guide groove is vertically plug-in adapted to install the upper sealing unit; and an upper sealing hook is provided at the top of the upper sealing unit; the upper sealing hook is used for lifting and transporting the upper sealing unit 901.

[0021] In the above technical solution, preferably: the sealing unit has a metal shell, a number of refractory bricks are evenly distributed in the metal shell shell, and non-asbestos insulation material is filled between the refractory bricks and the metal shell.

[0022] The advantages of the present invention compared with the prior art are:

[0023] 1. The present invention can modify the furnace charging device into a mold preheating furnace charging device or a rail preheating furnace charging device according to functionality. It can be replaced and selected according to actual needs to meet the multifunctional use requirements of the furnace charging device and achieve the versatility of furnace charging and preheating.

[0024] 2. The rail preheating module supported and installed on the car body of the present invention ensures that when a whole bundle of root rails is unloaded by the overhead crane at one time, the rails are prevented from scattering and falling from the car body support platform; the mold preheating module installed at the front of the car body is used for one-time multi-layer furnace preheating of the movable block mold, and multiple layers of multiple movable block molds are preheated synchronously, which greatly improves the preheating efficiency of the movable block mold.

[0025] 3. The public vehicle body of the present invention adopts a driving running unit to drive the functional structural modules installed on the public vehicle body to realize the straight forward displacement or straight backward displacement of the vehicle body, and realizes the electric drive into or out of the furnace operation, replacing manpower to complete the entering or out of the furnace operation, which is safe, labor-saving, reliable and efficient.

[0026] 4. The public vehicle body of the present invention is equipped with a counterweight unit. The counterweight unit 1 can achieve balanced counterweighting at the rear end of the public vehicle body according to the load at the front end of the public vehicle body. The weight of the rear counterweight can be adjusted according to actual needs to ensure stable and reliable operation of the vehicle body in and out of the furnace. On this basis, the anti-overturning frame of the present invention uses four anti-overturning supports to increase the left and right anti-overturning function of the public vehicle body, further improving the displacement stability and reliability of the vehicle body.

[0027] 5. The public car body of the present invention adopts the method of adding oblique triangular inclined tie bars to increase the anti-deformation function of the counterweight unit, and then adopts the method of adding counterweight support rollers at the bottom of the counterweight unit to achieve stable support and rolling displacement of the public car body, ensuring stable entry and exit of the public car body.

[0028] 6. The furnace mouth position detection sensor of the present invention uses a proximity switch or distance sensor to trigger the driving running unit to stop, thereby realizing the automatic stopping of the vehicle body at a fixed position in front of the furnace mouth; combined with the mechanical hard limit component, the mechanical blocking limit displacement of the vehicle body that fails to brake in time is realized, and a double "parking" protection method is adopted to realize the parking action of the vehicle body at a fixed position in front of the furnace, realizing efficient, labor-saving, and automated operation of loading and unloading furnaces, which is safe, reliable, and efficient.

[0029] 7. The car body of the present invention is equipped with a car body cable arrangement, and the connection position between the car body and the car body is set at the relative position of the car body loading and close to the counterweight side of the rear of the car body to ensure that after the material is taken out of the furnace, the oxide scale above the car body cable arrangement is prevented from falling off, and the high-temperature rail parts are prevented from baking the car body cable arrangement, thereby avoiding damage to the cable.

[0030] 8. The driving running unit of the present invention is provided with a reversible cover above the driving motor, and the handle is used to close the reversible cover. The reversible cover effectively prevents materials from falling and protects the driving motor. When the driving motor needs maintenance, the reversible cover can be flipped up for operation, which is convenient, safe and reliable.

[0031] 9. The sealing unit for sealing the furnace mouth of the heat treatment furnace of the present invention is used for sealing the furnace mouth to insulate the furnace chamber; and the sealing unit adopts an embedded subcontracting structure, that is, a metal shell made of stainless steel, titanium alloy, aluminum alloy or the like is adopted, and refractory bricks are arranged in the metal shell, and then non-asbestos insulation materials such as insulation blankets are filled between the refractory bricks and the metal shell, thereby canceling the original sealing form of exposed asbestos in the furnace body, completely eliminating the hazards of exposed asbestos fibers contacting the human body during operation, making the operation safer and more environmentally friendly, and effectively avoiding the occupational hazards of direct contact with asbestos for operators.

[0032] 10. This invention enables the multifunctional use of a box-type heat treatment furnace, significantly improving the efficiency of existing mold preheating and optimizing rail loading operations. It also completely eliminates the occupational hazards posed by asbestos. It effectively improves the quality of equipment and tooling while also saving mold preheating time and increasing production time during the forging process. With its rational structure, simplicity and practicality, strong versatility, and easy installation and maintenance, this invention facilitates design and construction, making it suitable for rail turnout production and widely applicable to rail heel-end forging. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is the common vehicle body axonometric view of the present invention;

[0034] Figure 2 This is an axonometric view of the common vehicle body of the present invention after the mold preheating module is installed;

[0035] Figure 3 This is an axonometric view of the public vehicle body of the present invention after the rail preheating module is installed;

[0036] Figure 4 This is a schematic diagram of the structure of the driving and traveling unit installed on the public vehicle body of the present invention;

[0037] Figure 5 For the present invention Figure 3 Diagram of the use status of the movable block mold preheating;

[0038] Figure 6Schematic diagram of the double-layer assembly state of the double-layer mold storage rack in the mold preheating module of the present invention;

[0039] Figure 7 for Figure 6 Schematic diagram of the structure of the single-layer storage rack body;

[0040] Figure 8 Schematic diagram of the cross-sectional structure of the sealing unit of the present invention;

[0041] In the figure: 1-heat treatment furnace, 2-multifunctional furnace loading device, 3-public car body, 301-furnace loading track; 4-functional structure module, 5-mold preheating module, 501-mold furnace loading main body support, 502-multi-layer mold storage rack, 5021-storage rack body, 5022-plug-in mother part, 5023-plug-in sub-part, 5024-storage rack hook; 6-rail preheating module, 601-rail furnace loading main body front support, 602-rail furnace loading main body rear support, 603-support cross bar; 7-anti-overturning frame, 701-frame body, 702-anti-overturning support, 703-functional structure mounting plate, 704-reversible cover plate, 7041-handle piece; 8-driving running unit, 801-driving motor, 802-reducing Speed ​​​​driver, 803-chain drive or gear drive mechanism, 804-driving wheel set, 805-driven wheel set; 9-sealing unit, 901-upper sealing unit, 902-lower sealing unit, 9011-vertical guide groove, 9012-upper sealing hook, 903-metal shell, 904-refractory brick, 905-non-asbestos thermal insulation material; 10-counterweight unit, 1001-counterweight installation platform, 1002-oblique triangular inclined tie rod, 1003-counterweight block, 1004-lifting ring, 1005-counterweight support roller; 11-furnace mouth position detection sensor; 12-mechanical hard limit assembly; 1201-hard limit slot; 1202-hard limit block; 13-car body cable arrangement, 14-movable block mold, 15-rail to be preheated. DETAILED DESCRIPTION

[0042] The following is a combination of the embodiments of the present invention Figure 1-8 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0043] A multifunctional charging device for a heat treatment furnace comprises a multifunctional charging device 2 for concentrically transferring materials toward a heat treatment furnace 1. The heat treatment furnace 1 is particularly a box-type heat treatment furnace.

[0044] (like Figure 2 、 Figure 3As shown in the figure, the multifunctional furnace loading device 2 is composed of a common vehicle body 3 and a functional structure module 4; the functional structure module 4 is detachably mounted on the common vehicle body 3, and the common vehicle body 3 carries the functional structure module 4 to automatically move toward the furnace body to feed or discharge materials.

[0045] The functional structure module 4 consists of a mold preheating module 5 and a rail preheating module 6. The mold preheating module 5 is used for preheating the multiple layers of the loose mold 14 in a flat layout; the rail preheating module 6 is used for preheating the rail 15 to be preheated in a flat layout. The rail preheating module 6 ensures that the rails are arranged in an orderly manner during loading. The mold preheating module 5 ensures that the multiple layers of the loose mold are neatly arranged and preheated, while the forging production line continues to operate.

[0046] (Combined Figure 1 ) The public vehicle body 3 has an anti-overturning frame 7; the anti-overturning frame 7 is installed with a driving running unit 8; the driving running unit 8 realizes the concentric displacement feeding or discharging of the public vehicle body 3 and the functional structural module 4 carried by the public vehicle body 3 toward the heat treatment furnace 1.

[0047] The functional structure module 4 further includes a sealing unit 9 , which is assembled with the mold preheating module 5 and the rail preheating module 6 . The sealing unit 9 comprises a heat-insulating material, which is a non-asbestos heat-insulating material 905 .

[0048] Specifically, the present invention ensures regular and orderly rail placement during furnace loading. Furthermore, the movement of rails and loose-block molds into and out of the furnace is controlled by the drive travel unit 8. This effectively utilizes the idle state of existing box-type normalizing furnaces to preheat the molds or rails, while simultaneously maintaining the forging production line. This significantly improves the preheating efficiency of existing molds when replacing them. The public car body 3 utilizes a functional modular design, enabling smooth switching between mold and rail loading. This eliminates the risk of exposed asbestos insulation during furnace loading, eliminates the possibility of manual asbestos exposure during operation, and mitigates occupational hazards.

[0049] In the above embodiment, further: in order to improve the anti-dumping function of the public vehicle body 3: first, the public vehicle body is a structure that is long in the longitudinal direction and narrow in the transverse direction.

[0050] The rear portion of the public vehicle body 3 is provided with a counterweight unit 10. This counterweight unit 10 is equipped with a right-angled counterweight mounting platform 1001, which is equipped with oblique triangular bracing bars 1002 to prevent deformation. Specifically, the oblique triangular bracing bars 1002 and the right-angled counterweight mounting platform 1001 form a right-angled anti-deformation structure, thus preventing the counterweight unit 10 from deforming at the rear of the public vehicle body 3. Counterweight blocks 1003 are placed on the counterweight mounting platform 1001, each of which is equipped with a lifting eye 1004. These lifting eyes 1004 facilitate lifting.

[0051] In the above embodiment, preferably, the counterweight block 1003 can be a cement counterweight block or a lead counterweight block.

[0052] In the above embodiment, further features include counterweight support rollers 1005 disposed at the bottom of the counterweight unit 10. These rollers 1005 engage in rolling friction with the furnace loading rails 301, which support the linear movement of the common car body 3. These rollers 1005 provide auxiliary support for the counterweight, ensuring front-to-rear balance when the car body is unloaded and preventing the counterweight from tipping over.

[0053] In the above embodiment, the anti-overturning frame 7 further comprises a frame body 701; the frame body 701 is a welded frame structure; and vertical downward anti-overturning braces 702 are provided around the welded frame body 701. The anti-overturning braces 702 prevent the load from swaying during loading and causing the vehicle to overturn, facilitating safe and timely manual removal. Furthermore, the drive travel unit 8 is mounted on the welded frame body 701.

[0054] In the above embodiment, preferably, the front top of the frame body 701 includes a functional structure mounting plate 703 for securely and removably mounting the mold preheating module 5 or the rail preheating module 6. Specifically, the functional structure mounting plate 703 is formed with multiple mounting holes evenly distributed longitudinally and transversely, allowing the mold preheating module 5 to be securely mounted forward, while the rail preheating module 6 is supported and fixedly mounted.

[0055] (like Figure 2 As shown) In order to improve reliability, further: the mold preheating module 5 is equipped with triangular reinforcing ribs, and the triangular reinforcing ribs are used to prevent the mold preheating module 5 from deformation.

[0056] (like Figure 2 、 Figure 4In the above embodiment, further features are provided: a reversible cover 704 is provided at the rear middle portion of the top of the frame body 701 for shielding the driving and traveling unit 8; the reversible cover 704 is provided with a handle 7041. The reversible cover 704 is used to prevent falling materials from damaging the motor, and when the driving motor 801 is to be repaired, the reversible cover 704 can be flipped up to facilitate maintenance.

[0057] (like Figure 4 As shown in the above embodiment, preferably: the driving running unit 8 is composed of a driving motor 801, a reducer 802, a chain drive or gear transmission mechanism 803, a driving wheel group 804, and a driven wheel group 805 in sequence; the driving wheel group 804 and the driven wheel group 805 are adapted to the rolling friction of the furnace loading rail 301, and the driving wheel group 804 is arranged on the rear side of the driven wheel group 805.

[0058] Specifically, the drive motor 801 is fixedly mounted with the drive motor mounting base as a support, the power output shaft of the drive motor 801 is connected to the power input end of the reducer 802, and the power output end of the reducer 802 is connected to the power input end of the chain drive or gear transmission mechanism 803. When the chain drive or gear transmission mechanism 803 is a chain drive mechanism, it includes a driving sprocket, a driven sprocket, and a chain. When the chain drive or gear transmission mechanism 803 is a gear transmission mechanism, it includes a driving gear and a driven gear. The power output end of the chain drive or gear transmission mechanism 803 drives the driving wheel set 804 to rotate, and the driving wheel set 804 then drives the driven wheel set 805 to rotate, thereby realizing the automatic running operation of the public vehicle body 3, and the forward and backward running switching movement of the vehicle body when the drive motor rotates forward and reverse.

[0059] (like Figure 4 、 Figure 1 As shown) in the above embodiment, further: a furnace mouth position detection sensor 11 is installed at the front end of the public vehicle body 3; further, the furnace mouth position detection sensor 11 includes a sensor mounting bracket, and the sensor mounting bracket is installed with a proximity switch or a laser ranging sensor.

[0060] The furnace mouth position detection sensor 11 is connected to the controller input end; the controller output end is connected to the control input end of the driving motor 801 driving the running unit 8.

[0061] The operating principle is as follows: when the detection value of the furnace mouth position detection sensor 11 is less than a preset value, the sensor triggers the drive motor 801 to stop, thereby shutting down the machine. Specifically, as the public car 3 moves into the furnace, the sensor mounted on the furnace sensor mounting bracket sends a signal within the set value, de-energizing the drive motor 801 of the travel unit 8. If inertia causes the public car 3 to continue moving forward, the mechanical hard limit assembly 12 below the public car 3, described later, forcibly stops the movement of the public car 3, preventing collision between the public car 3 and the furnace and achieving a precise stop.

[0062] In the above embodiment, further: the common vehicle body 3 includes a furnace loading track 301 parallel to the center line of the heat treatment furnace 1; there are two furnace loading tracks 301, and the two furnace loading tracks 301 are laid according to the principle of train wheel-rail pairs.

[0063] (like Figure 1 As shown in the figure, a mechanical hard limit function is realized: a mechanical hard limit component 12 is installed on the furnace loading rail 301 near the furnace mouth of the heat treatment furnace 1; the mechanical hard limit component 12 is used for mechanically blocking the public car body 3 near the furnace mouth of the heat treatment furnace 1, that is, to realize the mechanical prevention of excessive displacement of the public car body 3 after the driving running unit 8 stops.

[0064] In the above embodiment, further: the mechanical hard limit assembly 12 includes a hard limit slot 1201 fixedly installed vertically upward on the furnace loading rail 301; the hard limit slot 1201 is plugged into and adapted to fit a hard limit block 1202 protruding from the upper end surface of the furnace loading rail 301; the hard limit block 1202 is used to mechanically block and limit excessive displacement of the public vehicle body 3.

[0065] Specifically, the mechanical hard limit assembly 12 has two groups, front and rear. One group of the front and rear mechanical hard limit assemblies 12 is a hard limit for the mold loading position, and the other group is a hard limit for the rail loading position. The hard limit blocks 1202 in the two groups of mechanical hard limit assemblies 12 can be disassembled up and down respectively, so that the mechanical hard limit can be used when switching functions.

[0066] (like Figures 1 to 5 In the above embodiment, further features are provided: the common car body 3 includes a car body cable arrangement 13, which is used to integrate all cables of the multifunctional furnace loading device 2. The car body cable arrangement 13 is connected to the car body at a position relative to the car body loading and closer to the counterweight at the rear end of the car body. This prevents oxide scale from falling off the car body cable arrangement 13 after the material is removed from the furnace, and prevents the high-temperature rail from heating the car body cable arrangement 13, thereby avoiding cable damage.

[0067] (like Figure 2 、 Figure 5In the above embodiment, further, the mold preheating module 5 includes a mold furnace mounting body support 501, which extends horizontally and is fixedly mounted at the front end of the common vehicle body 3. Specifically, the mold furnace mounting body support 501 is aligned with a prefabricated hole at the front end of the common vehicle body 3 for fastening. It should be noted that the forward extension of the mold furnace mounting body support 501, extending beyond the common vehicle body 3, serves as the mold mounting body, allowing the mold to be transported into the furnace cavity for preheating when the common vehicle body 3 moves forward.

[0068] (like Figure 6 、 Figure 7 The mold furnace support 501 is provided with a multi-layer mold rack 502, which can be two or more layers. Multiple layers of movable molds can be placed at most at a time for simultaneous preheating, greatly improving the preheating efficiency of the mold.

[0069] Each layer of the multi-layer mold rack 502 comprises a rack body 5021; a female connector 5022 is provided at the upper end of the rack body 5021, and a sub-connector 5023 is provided at the lower end of the rack body 5021; rack hooks 5024 are provided on symmetrical sides of the rack body 5021; the upper rack body 5021 is connected to the female connector 5022 at the top of the lower rack body 5021 via the sub-connector 5023 at the bottom end thereof, thereby achieving multi-layer stacking, plugging and adapting connection of the multi-layer rack bodies 5021; each rack body 5021 is used to neatly place the movable block molds 14 to be preheated.

[0070] (like Figure 3 In the above embodiment, further, the rail preheating module 6 includes a front support 601 and a rear support 602 for the rail loading furnace body; the front support 601 and the rear support 602 are respectively fixedly mounted at the front and rear ends of the common vehicle body 3. When the rails are loaded into the furnace, the front support 601 and the rear support 602 are used to support the front and rear ends of the long rails, keeping them stable and positioned front and back, facilitating the movement of the entire vehicle body.

[0071] On this basis, the front and rear supports of the rail loading furnace body 601 and the rail loading furnace body 602 are both U-shaped structures. A support crossbar 603 is provided in the middle of the U-shaped structure. The support crossbar 603 is a square steel structure and is used to horizontally elevate and support the preheated rail 15. The top of the U-shaped structure is provided with a vertical stopper rod body that extends vertically upward to protrude from the upper end surface of the preheated rail 15. The stopper rod body is used to prevent the preheated rail 15 from sliding, that is, to prevent the rail from loosening and falling from the support crossbar 603 platform. At the same time, the front and rear supports of the rail loading furnace body 601 and rail loading furnace body 602 are the same width as the common car body 3, with the same height and width, to prevent the rails from scattering and falling during unloading.

[0072] During furnace loading: manually place the entire bundle of material rails on the front support 601 and the rear support 602 of the rail loading furnace body, and use the existing crowbars in the workshop to move the rails to align them to avoid stacking on each other, so as to reduce the deformation of the rails during the heat treatment process of furnace loading, control the deformation law, and facilitate the top adjustment and straightening operations in the subsequent processes.

[0073] (like Figure 2 、 Figure 3 、 Figure 5 As shown) in the above embodiment, further: the sealing unit 9 includes an upper sealing unit 901 and a lower sealing unit 902; the upper sealing unit 901 is plug-in connected to the functional structure module 4; the lower sealing unit 902 is fastened connected to the functional structure module 4.

[0074] Provide linear guidance for the plug-in installation of the upper sealing unit 901: a vertical guide groove 901 is provided which is fastened to the functional structure module 4; the vertical guide groove 9011 is vertically plugged in and adapted to install the upper sealing unit 901; and an upper sealing hook 9012 is provided at the top of the upper sealing unit 901; the upper sealing hook 9012 is used for lifting and transporting the upper sealing unit 901.

[0075] (like Figure 8 As shown) in the above embodiment, preferably: the sealing unit 9 has a metal shell 903, a number of refractory bricks 904 are evenly distributed in the shell of the metal shell 903, and non-asbestos insulation material 905 is filled between the refractory bricks 904 and the metal shell 903.

[0076] Preferably, the metal shell 903 includes any one of a stainless steel shell, an aluminum alloy shell, and a titanium alloy shell. The non-asbestos insulation material 905 is preferably a thermal insulation blanket.

[0077] The sealing unit 9 uses stainless steel as the outer shell, lining with refractory bricks as the core, and is wrapped with a thermal insulation blanket to achieve temperature isolation. It eliminates the original sealing form of exposed asbestos in the furnace body, making the operation safer and more environmentally friendly, and effectively avoiding the occupational hazards of direct contact with asbestos for operators.

[0078] The working principle of the present invention is as follows: the common car body 3 realizes the detachable installation of the functional structure module 4, and the mold preheating module 5 and the rail preheating module 6 in the functional structure module 4 respectively realize the detachable and replaceable preheating support of the rail and the movable block mold, thereby realizing the expansion of the preheating function of the feeding car body. The automatic control of the public car body 3 entering and exiting the furnace is realized by driving the running unit 8. Furthermore: in order to accurately stop the movement of the common car body 3 in front of the furnace, the common car body 3 realizes the automatic shutdown control of the drive motor 801 through the furnace mouth position detection sensor 11, and then realizes the mechanical hard limit of the driven wheel group 805 through the mechanical hard limit component 12. And after the common car body 3 stops accurately in front of the furnace, the sealing unit 9 is used to cover the furnace mouth, thereby realizing the preheating and heat preservation of the rail or movable block mold. When leaving the furnace, the drive motor 801 rotates in the opposite direction to realize the transportation of the preheated rail or movable block mold out of the furnace. Since the mold preheating module 5 is a forward-extending structure, a counterweight unit 10 is provided at the rear end of the public vehicle body 3 to prevent the public vehicle body 3 from rolling and linearly displacing. It works in conjunction with the anti-tilt support 702 to ensure the stability of the public vehicle body 3 during displacement.

[0079] From the above description, it can be found that the present invention can functionally modify the furnace loading device into a mold preheating furnace loading device or a rail preheating furnace loading device, and replace and select it according to actual needs to meet the multifunctional use requirements of the furnace loading device and realize the versatility of furnace loading and preheating.

[0080] The rail preheating module 6 supported and mounted on the vehicle body of the present invention ensures that when a whole bundle of 5 rails is unloaded by the overhead crane at one time, the rails are prevented from scattering and falling from the vehicle body support platform; the mold preheating module 5 mounted on the front of the vehicle body is used for one-time multi-layer furnace preheating of the movable block mold, and multiple layers of multiple movable block molds are preheated synchronously, which greatly improves the preheating efficiency of the movable block mold.

[0081] The public vehicle body 3 of the present invention adopts the driving running unit 8 to drive the functional structure module 4 installed on the public vehicle body 3 to realize the straight forward displacement or straight backward displacement of the vehicle body, realizing the electric drive into or out of the furnace operation, replacing manpower to complete the into or out of the furnace operation, which is safe, labor-saving, reliable and efficient.

[0082] The public vehicle body 3 of the present invention is equipped with a counterweight unit 10. This counterweight unit 10 can balance the rear end of the public vehicle body 3 according to the load at the front end of the public vehicle body 3. The weight of the rear counterweight can be adjusted according to actual needs to ensure stable and reliable operation of the vehicle body in and out of the furnace. Furthermore, the anti-overturning frame 7 of the present invention uses four anti-overturning supports 702 to increase the left and right anti-overturning function of the public vehicle body 3, further improving the displacement stability and reliability of the vehicle body.

[0083] The public car body 3 of the present invention adopts the method of adding oblique triangular inclined tie bars 1002 to increase the anti-deformation function of the counterweight unit 10, and then adopts the method of adding counterweight support rollers 1005 at the bottom of the counterweight unit 10 to achieve stable support and rolling displacement of the public car body 3, ensuring stable entry and exit of the public car body 3.

[0084] The furnace mouth position detection sensor 11 of the present invention uses a proximity switch or distance sensor to trigger the driving running unit 8 to stop, thereby realizing the automatic stopping of the vehicle body at a fixed position at the front end of the furnace mouth; combined with the mechanical hard limit component 12, it realizes the mechanical blocking limit displacement of the vehicle body that fails to brake in time, and adopts a double "parking" protection method to realize the parking action of the vehicle body at a fixed position in front of the furnace, realizing efficient, labor-saving, and automated loading and unloading operations, which is safe, reliable, and efficient.

[0085] The car body of the present invention is equipped with a car body cable arrangement 13, and the connection position between the car body and the car body is set at the relative position of the car body loading and close to the counterweight side of the rear of the car body. This ensures that after the material is taken out of the furnace, the oxide scale on the car body cable arrangement 13 is prevented from falling off, and the high-temperature rail parts prevent the car body cable arrangement 13 from being baked, thereby avoiding damage to the cable.

[0086] The driving running unit 8 of the present invention is provided with a reversible cover 704 above the driving motor 801, and the handle 7041 is used to close the reversible cover 704. The reversible cover 704 effectively prevents materials from falling and protects the driving motor 801. When the driving motor 801 needs maintenance, the reversible cover 704 can be flipped up for operation, which is convenient, safe and reliable.

[0087] The sealing unit 9 for sealing the furnace opening of the heat treatment furnace 1 of the present invention is used to seal the furnace opening to insulate the furnace chamber; and the sealing unit 9 adopts an embedded subcontracting structure, that is, a metal shell 903 made of stainless steel, titanium alloy, aluminum alloy or the like is adopted, and refractory bricks 904 are arranged in the metal shell 903, and then non-asbestos insulation material 905, such as insulation blanket or other insulation materials, is filled between the refractory bricks 904 and the metal shell 903, thereby eliminating the original sealing form of the exposed asbestos of the furnace body, completely eliminating the hazards of exposed asbestos fibers contacting the human body during operation, making the operation safer and more environmentally friendly, and effectively avoiding the occupational hazards of direct contact with asbestos for operators.

[0088] In summary, the present invention enables the multifunctional use of a box-type heat treatment furnace 1, significantly improving the efficiency of existing mold preheating and optimizing rail loading operations. It also completely eliminates the occupational hazards posed by asbestos to personnel. It effectively improves the level of equipment and tooling while also saving mold preheating time and increasing production time during the forging process. The present invention has a reasonable structure, is simple and practical, has strong versatility, is easy to install and maintain, and facilitates design and construction. It is suitable for rail turnout production and can be widely used in the field of rail heel and end forging.

[0089] It should be noted that the "Multifunctional loading device for a heat treatment furnace" provided by the present invention has the same structure and function as the fixed preheating device in the "A method and device for preheating and insulating a rail forging live block die" applied for by this unit on the same day.

[0090] Each embodiment in this specification is described in a related manner. The same or similar parts between the embodiments can be referred to each other. Each embodiment focuses on the differences from other embodiments.

[0091] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention are included in the scope of protection of the present invention.

Claims

1. A multifunctional charging device for a heat treatment furnace, comprising a multifunctional charging device (2) for concentrically transferring material toward the heat treatment furnace (1); characterized in that: The multifunctional furnace loading device (2) is composed of a common vehicle body (3) and a functional structure module (4); the functional structure module (4) is detachably mounted on the common vehicle body (3), and the common vehicle body (3) carries the functional structure module (4) to automatically move toward the furnace body to feed or discharge materials; The functional structure module (4) is composed of a mold preheating module (5) and a rail preheating module (6); the mold preheating module (5) is used for multi-layer flat preheating of the movable block mold (14); the rail preheating module (6) is used for flat preheating of the rail to be preheated (15); The public vehicle body (3) has an anti-overturning frame (7); the anti-overturning frame (7) is installed with a driving running unit (8); the driving running unit (8) enables the public vehicle body (3) and the functional structural module (4) carried by the public vehicle body (3) to move concentrically toward the heat treatment furnace (1) for feeding or discharging; The functional structure module (4) further includes a sealing unit (9); the sealing unit (9) is respectively assembled with the mold preheating module (5) and the rail preheating module (6); The sealing unit (9) has a heat-insulating material; the heat-insulating material of the sealing unit (9) is a non-asbestos heat-insulating material (905); The mold preheating module (5) comprises a mold furnace main body support (501); the mold furnace main body support (501) is horizontally extended and fixedly installed at the front end of the public vehicle body (3); the mold furnace main body support (501) is provided with a multi-layer mold storage rack (502); each layer of the multi-layer mold storage rack (502) has a storage rack body (5021); the upper end of the storage rack body (5021) is provided with a plug-in female part (5022), and the storage rack body (5021) A plug-in sub-component (5023) is provided at the lower end; a shelf hook (5024) is provided on the symmetrical side of the shelf body (5021); wherein the upper shelf body (5021) is plugged into the plug-in female component (5022) at the top of the lower shelf body (5021) through the plug-in sub-component (5023) at the bottom end thereof, so as to realize the multi-layer stacking plug-in adaptation connection of the multi-layer shelf bodies (5021); each of the shelf bodies (5021) is used to neatly place the movable block molds (14) to be preheated; The rail preheating module (6) comprises a rail furnace loading body front support (601) and a rail furnace loading body rear support (602); the rail furnace loading body front support (601) and the rail furnace loading body rear support (602) are respectively fixedly installed at the front and rear ends of the common vehicle body (3), and the front and rear supports are both U-shaped structures, and a supporting cross bar (603) is provided in the middle of the U-shaped structure, and the supporting cross bar (603) is used to horizontally raise and support the rail to be preheated (15), and a vertical lever rod body is provided at the top end of the U-shaped structure, which extends vertically upward to protrude from the upper end surface of the rail to be preheated (15), and the lever rod body is used to prevent the rail to be preheated (15) from sliding.

2. The multifunctional furnace loading device for a heat treatment furnace according to claim 1, characterized in that: The rear part of the public vehicle body (3) is provided with a counterweight unit (10); the counterweight unit (10) is provided with a counterweight installation platform (1001) with a right-angle structure, and the counterweight installation platform (1001) is provided with an oblique triangular inclined tie bar (1002) for preventing the counterweight installation platform (1001) from being deformed; a counterweight block (1003) is placed on the counterweight installation platform (1001); and each counterweight block (1003) is respectively provided with a lifting ring (1004).

3. The multifunctional furnace loading device for a heat treatment furnace according to claim 2, characterized in that: A counterweight support roller (1005) is provided at the bottom of the counterweight unit (10); the counterweight support roller (1005) is adapted to rolling friction with a furnace loading track (301) used to support the linear displacement of the common vehicle body (3).

4. The multifunctional furnace loading device for a heat treatment furnace according to claim 1, characterized in that: The anti-overturning frame (7) comprises a frame body (701); the frame body (701) is a welded frame structure; vertical downward anti-overturning supports (702) are provided around the frame body (701) of the welded frame structure; and the frame body (701) of the welded frame structure is installed with a driving running unit (8).

5. The multifunctional furnace loading device for a heat treatment furnace according to claim 4, characterized in that: The front side of the top end of the vehicle frame body (701) is provided with a functional structure mounting plate (703); the functional structure mounting plate (703) is used for fastening and detachably mounting a mold preheating module (5) or a rail preheating module (6).

6. The multifunctional furnace loading device for a heat treatment furnace according to claim 4, characterized in that: A reversible cover plate (704) for shielding the driving and traveling unit (8) is provided on the rear side of the middle portion of the top end of the vehicle frame body (701); the reversible cover plate (704) is provided with a handle (7041).

7. The multifunctional furnace loading device for a heat treatment furnace according to claim 1, 4 or 6, characterized in that: The driving travel unit (8) is composed of a driving motor (801), a reducer (802), a chain drive or tooth transmission mechanism (803), a driving wheel group (804), and a driven wheel group (805) in sequence; the driving wheel group (804) and the driven wheel group (805) are adapted to the furnace loading track (301) by rolling friction, and the driving wheel group (804) is arranged on the rear side of the driven wheel group (805).

8. The multifunctional furnace loading device for a heat treatment furnace according to claim 1, 2 or 3, characterized in that: A furnace opening position detection sensor (11) is installed at the front end of the public vehicle body (3); the furnace opening position detection sensor (11) is connected to the input end of the controller; and the output end of the controller is connected to the control input end of the drive motor (801) that drives the running unit (8).

9. The multifunctional furnace loading device for a heat treatment furnace according to claim 1, characterized in that: The public car body (3) comprises a furnace loading rail (301) parallel to the center line of the heat treatment furnace (1); a mechanical hard limit assembly (12) is installed on the furnace loading rail (301) near the furnace mouth of the heat treatment furnace (1); the mechanical hard limit assembly (12) is used for mechanically blocking and hard limiting the position of the public car body (3) near the furnace mouth of the heat treatment furnace (1), that is, realizing the mechanical prevention of excessive displacement of the public car body (3) after the driving running unit (8) stops; the mechanical hard limit assembly (1201) comprises a hard limit slot (1201) fixedly installed vertically upward on the furnace loading rail (301); the hard limit slot (1201) is plugged and adapted to be installed with a hard limit block (1202) protruding from the upper end surface of the furnace loading rail (301); the hard limit block (1202) is used for mechanically blocking and limiting excessive displacement of the public car body (3).

10. The multifunctional furnace loading device for a heat treatment furnace according to claim 1, characterized in that: The common vehicle body (3) has a vehicle body cable arrangement (13); the vehicle body cable arrangement (13) is used for integrating all cables of the multifunctional furnace loading device (2).

11. The multifunctional furnace loading device for a heat treatment furnace according to claim 1, characterized in that: The sealing unit (9) comprises an upper sealing unit (901) and a lower sealing unit (902); the upper sealing unit (901) is plug-connected to the functional structure module (4); the lower sealing unit (902) is fixedly connected to the functional structure module (4); a vertical guide groove (9011) is provided which is fixedly connected to the functional structure module (4); the vertical guide groove (9011) is vertically plugged in and adapted to install the upper sealing unit (901); and an upper sealing hook (9012) is provided at the top of the upper sealing unit (901); the upper sealing hook (9012) is used for lifting and transporting the upper sealing unit (901).

12. The multifunctional furnace loading device for a heat treatment furnace according to claim 1 or 11, characterized in that: The sealing unit (9) has a metal shell (903), a plurality of refractory bricks (904) are evenly distributed inside the metal shell (903), and non-asbestos insulation material (905) is filled between the refractory bricks (904) and the metal shell (903).

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