Trolley door pressing device

Abstract

The utility model relates to the technical field of trolley furnace door pressing, in particular to a trolley furnace door pressing device which comprises a door frame used for fixedly installing a door body, a furnace door used for blocking a trolley furnace opening is arranged in the middle of the door frame, and pressing assemblies used for pressing and fixing are arranged at the positions, close to the four corners, of the front end face of the furnace door. The pressing assembly comprises symmetrical fixing blocks and a hydraulic cylinder installed between the two fixing blocks and used for adjusting the pressing position, a pressing plate is arranged at the tail end of a telescopic arm of the hydraulic cylinder, and locking columns are arranged at the positions, corresponding to the pressing assembly, of the front end face of the door frame. According to the trolley furnace door pressing device, the door frame with the sliding ways is arranged, the furnace door stably moves up and down in the door frame under the cooperation of the sliding rails and the sliding ways, the four pressing assemblies are matched, the position of the furnace door in the door frame is tightly pressed and fixed, locking columns are matched with the two sides of the front end face of the door frame, and the locking columns are matched with pressing plates; the position of the furnace door is tightly pressed and fixed, and loss of protection to the interior of the trolley furnace during opening in use is reduced.

Description

Technical Field

[0001] This utility model relates to the field of trolley furnace door clamping technology, specifically a trolley furnace door clamping device. Background Art

[0002] Car-type forging furnaces are relatively large. The furnace body and door are separate structures. The furnace opening is located on the side wall of the furnace body. The furnace door has door supports on both sides, with heat-resistant protective plates extending from the inside of the supports towards the door. The inner wall of the door is lined with heat-resistant material made of fiber cotton. Due to the heavy weight of the door, it is typically lifted by large machinery and secured to the furnace opening using a clamping mechanism.

[0003] Utility model patent CN209214354U discloses a furnace door clamping device for a bogie, comprising a gantry beam, a gantry column, a guide rail, a motor, a clamping mechanism, a fixed seat, a single ear plate, a pin A, a insert buckle, a magnetic cylinder, an ear seat, a pin B, a push rod, a support seat, a connecting rod, a slide groove, a clamping block, and a furnace door; a guide rail is provided between the side of the furnace door and the gantry column, and at least two sets of clamping mechanisms arranged in parallel are fixedly installed in the guide rail; the clamping mechanism includes a planar four-bar linkage and a pneumatic device, the planar four-bar linkage is fixed on the guide rail, the magnetic cylinder in the pneumatic device drives the planar four-bar linkage, and the planar four-bar linkage clamps the furnace door tightly closed through the clamping block at its end;

[0004] The above technical solution uses a clamping mechanism to tightly seal the furnace door, ensuring uniform heating of the workpieces inside the furnace and effectively improving the workpiece qualification rate. This greatly increases the workpiece qualification rate and meets higher industry standards. However, the trolley furnace door needs to be clamped during long-term use to reduce the risk of loose fit when opening or closing, which could affect long-term internal processing operations. Utility Model Content

[0005] The purpose of this utility model is to provide a bogie furnace door clamping device to solve the problem mentioned in the background art. The utility model with authorization publication number CN209214354U discloses a bogie furnace door clamping device, but the bogie furnace door needs to be clamped during long-term use to reduce the problem of loose fit when opening or closing, which affects long-term internal processing operations.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A trolley furnace door clamping device includes a door frame for fixing the door body, a furnace door for sealing the trolley furnace opening is provided in the middle of the door frame, and clamping components for clamping and fixing are provided at the four corners of the front end face of the furnace door. The clamping components include symmetrical fixing blocks and hydraulic cylinders installed between the two fixing blocks for adjusting the clamping position. The telescopic arm of the hydraulic cylinder is provided with a pressure plate at the end, and locking pins are provided at the corresponding positions on the front end face of the door frame and the clamping components.

[0008] Preferably, the inner side of the door frame is provided with a slide rail, and the outer walls on both sides of the furnace door are provided with a slide rail corresponding to the slide rail, and the width of the outer wall of the slide rail is adapted to the width of the inner wall of the slide rail.

[0009] In this invention, the slide rail and slide channel are connected in a plug-in manner, which helps the furnace door to move up and down stably and increases the stability of the furnace door when opening or closing.

[0010] Preferably, a limiting groove is provided on the inner wall of the door frame near the front edge, and a limiting post is provided on the outer wall of the furnace door near the bottom, with the limiting post slidingly engaging with the limiting groove.

[0011] In this invention, a limiting groove is provided, and with the cooperation of a limiting column, the stability of the movement of the furnace door and the door frame is further increased, so as to avoid the furnace door and the door frame from separating and affecting the machining of the trolley furnace.

[0012] Preferably, the rear end face of the fixing block is welded and fixed to the furnace door, the hydraulic cylinder is fixedly connected to the fixing block by screws, and the inner side of the fixing block near the center on the front end face of the furnace door is provided with positioning posts, which are welded and fixed to the fixing block.

[0013] In this invention, welding the fixing block to the furnace door increases structural stability and, with the help of the hydraulic cylinder, facilitates manual control of the pressing position on both sides of the furnace door. The positioning column enhances the stability of the inner fixing block installation and avoids the impact of the hydraulic cylinder's tight pressing on the rear side causing damage.

[0014] Preferably, the telescopic arm of the hydraulic cylinder passes through a fixed block near the edge of the furnace door, and the pressure plates are all welded and fixed to the telescopic arm of the hydraulic cylinder. Several first locking teeth are provided on the outer surface of the pressure plate.

[0015] In this invention, the pressure plate is provided with first locking teeth that are evenly distributed to increase the stability of the fit with the locking post. This helps to fix the position of the furnace door by the pressure plate and prevent the sliding opening of the furnace door from affecting the internal processing of the trolley furnace.

[0016] Preferably, the length of the locking post is adapted to the height of the door frame, the rear end face of the locking post is welded and fixed to the front end face of the door frame, and a plurality of second locking teeth are provided on the inner side of the locking post at the position corresponding to the first locking tooth.

[0017] In this invention, a second set of equally spaced teeth is provided, which, in conjunction with the first set of teeth, increases the contact area and thus increases the friction force, thereby fixing the position of the pressure plate on the locking post and pressing and fixing the position of the furnace door.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] 1. This utility model features a door frame with a sliding track, and the furnace door moves stably up and down within the door frame with the cooperation of the sliding rail and the sliding track. Four clamping components work together to tightly press and fix the furnace door in the door frame. Locking pins are provided on both sides of the front end of the door frame. The cooperation of the locking pins and the pressure plate tightly presses and fixes the furnace door in position, reducing the risk of opening and losing protection of the inside of the trolley furnace during use.

[0020] 2. This utility model further restricts the stability of the sliding between the furnace door and the door frame by setting a limiting post and a limiting groove to slide together. The positioning post increases the stability of the fixing block in the middle position of the furnace door. The first tooth on the pressure plate cooperates with the second tooth on the locking post to increase the contact area and increase the friction force, so as to stably press and fix the furnace door. Attached Figure Description

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the furnace door in the closed and pressed state of this utility model;

[0023] Figure 3 This is a schematic diagram of the door frame structure of this utility model;

[0024] Figure 4 This is a schematic diagram of the combined structure of the furnace door and the clamping assembly of this utility model;

[0025] Figure 5 This is a schematic diagram of the clamping component structure of this utility model;

[0026] Figure 6 For the utility model Figure 2 Enlarged schematic diagram of part A in the middle.

[0027] The meanings of the labels in the diagram are as follows:

[0028] Door frame; 10. Slide rail; 11. Limiting groove;

[0029] Furnace door; 20. Limiting post; 21. Slide rail;

[0030] Clamping assembly; 30, fixing block; 300, positioning post; 31, hydraulic cylinder; 32, pressure plate; 320, first locking tooth;

[0031] Locking pin; 40. Second locking tooth. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0033] Please see Figures 1-6 This embodiment provides a technical solution:

[0034] A trolley furnace door clamping device includes a door frame 1 for fixing and installing the door body, a furnace door 2 for sealing the furnace opening of the trolley is provided in the middle of the door frame 1, a slide rail 10 is provided on the inner side of the door frame 1, and a slide rail 21 is provided on the outer walls of both sides of the furnace door 2 at the corresponding positions of the slide rail 10, and the width of the outer wall of the slide rail 21 is adapted to the width of the inner wall of the slide rail 10.

[0035] In this utility model, the slide rail 21 is connected to the slide 10, which helps the furnace door 2 to move up and down stably and increases the stability of the furnace door 2 when opening or closing.

[0036] Furthermore, limit grooves 11 are provided on the inner wall of the door frame 1 near the front edge, and limit posts 20 are provided on the outer wall of the furnace door 2 near the bottom. The limit posts 20 slide in conjunction with the limit grooves 11.

[0037] In this utility model, the limiting groove 11 is provided and, with the cooperation of the limiting column 20, further increases the stability of the movement of the furnace door 2 and the door frame 1, so as to avoid the furnace door 2 and the door frame 1 from separating and affecting the machining of the trolley furnace.

[0038] It should be noted that a clamping assembly 3 for clamping and fixing is provided near the four corners on the front face of the furnace door 2. The clamping assembly 3 includes symmetrical fixing blocks 30 and hydraulic cylinders 31 installed between the two fixing blocks 30 for adjusting the clamping position. The end of the telescopic arm of the hydraulic cylinder 31 is provided with a pressure plate 32. Locking pins 4 are provided on the front face of the door frame 1 at the corresponding positions of the clamping assembly 3.

[0039] Furthermore, the rear end face of the fixing block 30 is welded and fixed to the furnace door 2, and the hydraulic cylinder 31 is fixedly connected to the fixing block 30 by screws. The inner side of the fixing block 30 near the center on the front end face of the furnace door 2 is provided with positioning posts 300, which are welded and fixed to the fixing block 30.

[0040] In this invention, the welding of the fixing block 30 to the furnace door 2 increases structural stability and, with the cooperation of the hydraulic cylinder 31, helps to manually control the pressing position on both sides of the furnace door 2. The positioning column 300 increases the stability of the inner fixing block 30 installation and avoids the impact of the hydraulic cylinder 31's tight pressing on the rear side causing damage.

[0041] Specifically, the telescopic arm of the hydraulic cylinder 31 passes through the fixing block 30 near the edge of the furnace door 2, and the pressure plate 32 is welded and fixed to the telescopic arm of the hydraulic cylinder 31. Several first locking teeth 320 are provided on the outer side of the pressure plate 32.

[0042] In this utility model, the pressure plate 32 is provided with first locking teeth 320 distributed at equal intervals to increase the stability of the fit with the locking post 4, which helps to fix the position of the furnace door 2 by the pressure plate 32 and prevent the sliding opening of the furnace door 2 from affecting the internal processing of the trolley furnace.

[0043] Secondly, the length of the locking post 4 is adapted to the height of the door frame 1, the rear end face of the locking post 4 is welded and fixed to the front end face of the door frame 1, and several second locking teeth 40 are provided on the inner side of the locking post 4 at the position corresponding to the first locking tooth 320.

[0044] In this utility model, a second locking tooth 40 with equal spacing is provided, which, in cooperation with the first locking tooth 320, increases the contact area and thus increases the friction force, thereby fixing the position of the pressure plate 32 on the locking post 4, and thus pressing and fixing the position of the furnace door 2.

[0045] In this embodiment, when using the trolley furnace door clamping device, the user first installs the door frame 1 at the corresponding trolley furnace opening, and the furnace door 2 is connected to the slide rail 10 through the slide rail 21, and the limiting post 20 is slidably connected to the limiting groove 11 to achieve stable installation and cooperation between the furnace door 2 and the door frame 1. The hydraulic cylinder 31 is fixed between two fixing blocks 30, and the telescopic arm of the hydraulic cylinder 31 passes through the fixing block 30 and is fitted with a pressure plate 32 with a first locking tooth 320 at the end. Finally, the locking post 4 with a second locking tooth 40 is fixed on the front end face of the door frame 1.

[0046] When it is necessary to press and fix the position of the furnace door 2, the hydraulic cylinder 31 is connected to an external power source, and the telescopic arm is extended to make the pressure plate 32 with the first locking tooth 320 and the locking post 4 with the second locking tooth 40 fit tightly together. Under the action of friction, the position of the furnace door 2 is fixed. When it is necessary to lift the furnace door 2, the winch installed on the door frame 1 is controlled to shorten the telescopic arm of the hydraulic cylinder 31, so that the pressure plate 32 and the locking post 4 are separated, which facilitates the opening or closing operation of the furnace door 2. The overall operation is simple and helps to ensure the stable opening or tight closing operation of the furnace door 2 for a long time.

Claims

1. A trolley furnace door clamping device, comprising a door frame (1) for fixing and mounting a door body, wherein a furnace door (2) for blocking a trolley furnace opening is provided in the middle of the door frame (1), characterized in that: A clamping assembly (3) for clamping and fixing is provided on the front end surface of the furnace door (2) near the four corners. The clamping assembly (3) comprises symmetrical fixing blocks (30) and a hydraulic cylinder (31) installed between the two fixing blocks (30) for adjusting the clamping position. A pressing plate (32) is provided at the end of the telescopic arm of the hydraulic cylinder (31). A locking column (4) is provided on the front end surface of the door frame (1) at a position corresponding to the clamping assembly (3).

2. The trolley furnace door pressing device according to claim 1 is characterized in that: The inner side surface of the door frame (1) is provided with a slideway (10), and the outer walls on both sides of the furnace door (2) are provided with slide rails (21) at positions corresponding to the slideway (10), and the width of the outer wall of the slide rail (21) is adapted to the width of the inner wall of the slideway (10).

3. The trolley furnace door pressing device according to claim 1 is characterized in that: A limiting groove (11) is provided on the inner wall of the door frame (1) near the front end edge, and a limiting column (20) is provided on the outer wall of the furnace door (2) near the bottom, wherein the limiting column (20) is slidably matched with the limiting groove (11).

4. The trolley furnace door pressing device according to claim 1 is characterized in that: The rear end surface of the fixing block (30) is welded and fixed to the furnace door (2); the hydraulic cylinder (31) is fixedly connected to the fixing block (30) by screws; and positioning columns (300) are provided on the inner side surface of the fixing block (30) near the center on the front end surface of the furnace door (2); the positioning columns (300) are welded and fixed to the fixing block (30).

5. The trolley furnace door pressing device according to claim 1 is characterized in that: The telescopic arm of the hydraulic cylinder (31) passes through a fixed block (30) near the edge of the furnace door (2), and the pressing plate (32) is welded and fixed to the telescopic arm of the hydraulic cylinder (31), and a plurality of first latching teeth (320) are provided on the outer surface of the pressing plate (32).

6. The trolley furnace door pressing device according to claim 5 is characterized in that: The length of the locking column (4) is matched to the height of the door frame (1); the rear end face of the locking column (4) is welded and fixed to the front end face of the door frame (1); and a plurality of second latch teeth (40) are provided on the inner side face of the locking column (4) at positions corresponding to the first latch teeth (320).

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