Hanging door for forging furnace in forging workshop

Abstract

The utility model discloses a hanging door for a forging furnace in a forging workshop, which relates to the field of bearing processing and comprises a door frame, a door body slidably mounted in the door frame, a rope winding mechanism mounted at the top of the door frame, a first cavity formed in the door body, an elastic mechanism arranged in the first cavity, a hanging plate fixedly connected to the top end of the elastic mechanism, and a hanging rope connected to the top of the hanging plate. Friction mechanisms are arranged on the two sides of the door body and comprise fixing shells, the fixing shells are fixed to the side walls of the door body, friction plates are arranged in the side walls, close to the door frame, of the fixing shells, and guide rods are fixedly connected to the sides, close to the door body, of the friction plates. When the lifting rope is broken, the elastic mechanism drives the lifting plate to move downwards, the lifting plate drives the transmission mechanism to operate to enable the extrusion mechanism to rotate, and the extrusion mechanism pushes the friction plate to the inner walls of the two sides of the door frame, so that the door body is prevented from falling quickly by utilizing the friction between the friction plate and the door frame, the safety is improved, the subsequent maintenance is facilitated, and the maintenance cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the field of bearing processing, in particular to a lifting door for a forging furnace in a forging workshop. Background Technique

[0002] During the bearing processing, a forging furnace is needed for processing. The forging furnace is the basic heating equipment for heating forging materials in the forging workshop. When the forging furnace is in use, the furnace door needs to be lifted to observe the situation inside the furnace.

[0003] For example, the patent document with the publication number CN215295828U discloses a lifting door for a forging furnace in a forging workshop. By setting a rotating rod, a first pulling rope, a first magnetic block, a second magnetic block and a clamping plate, the lifting door can be buckled for auxiliary pulling while being lifted by the lifting device, increasing the safety of the lifting door. The first pulling rope is wound up by the rotating rod, and when the clamping plate is used to clamp the lifting door for pulling, the second magnetic block is energized to adsorb the first magnetic block, and the lifting door is lifted and fixed to prevent the lifting door from falling due to excessive gravity after being lifted, resulting in damage. However, if the pulling rope breaks during the process of pulling the door body, the door body will suddenly fall, and the above-mentioned lifting door does not have a fall prevention mechanism, there are certain safety hazards, and due to the large self-weight of the door body, the rack will drive the gear to reverse, and finally the motor will reverse, resulting in motor damage and increasing the maintenance cost. Content of the Utility Model

[0004] The purpose of the utility model is to provide a lifting door for a forging furnace in a forging workshop to solve the above problems.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] A lifting door for a forging furnace in a forging workshop, including a door frame, a door body is slidably installed inside the door frame, a rope winding mechanism is installed at the top of the door frame, a first cavity is opened inside the door body, an elastic mechanism is arranged in the first cavity, the top of the elastic mechanism is fixedly connected with a hanging plate, a hanging rope is connected to the top of the hanging plate, the top of the hanging rope is connected to the rope winding mechanism, friction mechanisms are arranged on both sides of the door body, the friction mechanism includes a fixed shell, the fixed shell is fixed on the side wall of the door body, a friction plate is arranged inside the side wall of the fixed shell close to the door frame, a guide rod is fixedly connected to the side of the friction plate close to the door body, the other end of the guide rod extends into the door body, a second spring is fixed on the friction plate, the other end of the second spring is fixedly connected with the side wall of the door body, an extrusion mechanism for pushing the friction plate is arranged inside the fixed shell, a second cavity is opened on one side of the first cavity close to the friction mechanism, and a transmission mechanism for making the hanging plate drive the extrusion mechanism to rotate is arranged in the second cavity, and the width of the second cavity in the front-back direction is smaller than the width of the hanging plate.

[0007] Preferably, the extrusion mechanism includes a support shaft rotatably connected inside the fixed shell. A cam and a worm gear are fixedly connected to the support shaft. The worm gear meshes with a worm. One end of the worm extends into the second cavity, and the worm is rotatably connected to the door body.

[0008] Preferably, the transmission mechanism includes a fixed frame fixedly connected to the suspension plate. A rack is fixedly connected to the bottom of the fixed frame. The rack meshes with a gear fixedly connected to the worm. The fixed frame, the rack, and the gear are all located inside the second cavity.

[0009] Preferably, the elastic mechanism includes a sleeve fixedly connected to the inner bottom wall of the first cavity. A movable rod is slidably connected inside the sleeve. The top end of the movable rod is fixedly connected to the suspension plate. A first spring is arranged inside the sleeve and fixedly connected to the bottom end of the movable rod.

[0010] Preferably, the rope winding mechanism includes a rotating shaft rotatably installed at the top of the door frame through a bearing seat. A winding roller is fixedly connected to the rotating shaft. The lifting rope is fixedly connected to the winding roller. A speed reduction motor is fixedly connected to one side of the door frame, and the output shaft of the speed reduction motor is fixedly connected to the rotating shaft.

[0011] Preferably, rubber sheets are fixedly connected to the inner walls on both sides of the door frame, and a rubber pad is fixedly connected to the inner bottom wall of the door frame.

[0012] The beneficial effects are as follows: When the lifting rope breaks, the elastic mechanism drives the suspension plate to move downward. The suspension plate drives the transmission mechanism to operate, causing the extrusion mechanism to rotate. The extrusion mechanism pushes the friction plate against the inner walls on both sides of the door frame, thereby using the friction between the friction plate and the door frame to prevent the door body from falling rapidly, improving safety, and being convenient for subsequent maintenance, which can reduce the maintenance cost.

[0013] The additional technical features and their advantages of the present utility model will be more clearly elaborated in the following description content, or can be understood through the specific practice of the present utility model. Description of the Drawings

[0014] The drawings are used to provide a further understanding of the present utility model and constitute a part of the specification. Together with the following specific implementation manners, they are used to explain the present utility model, but do not constitute a limitation to the present utility model. In the drawings:

[0015] Figure 1 is a three-dimensional view of a suspension door for a forging furnace in a forging workshop according to the present utility model;

[0016] Figure 2 is a front sectional view of a suspension door for a forging furnace in a forging workshop according to the present utility model;

[0017] Figure 3 is a Figure 2 magnified view of the structure at A in the suspension door for a forging furnace in a forging workshop according to the present utility model;

[0018] Figure 4 is the enlarged view of the structure at position B in a lifting door for a forging furnace in a forging workshop according to the present utility model Figure 2 ; the enlarged view of the structure at position B

[0019] Figure 5 is the top view of the internal structures of the door body and the fixed housing of a lifting door for a forging furnace in a forging workshop according to the present utility model

[0020] Explanation of the reference numerals is as follows: 1, door frame; 101, rubber sheet; 102, rubber pad; 2, door body; 201, first cavity; 202, second cavity; 3, lifting rope; 4, lifting plate; 5, rope winding mechanism; 501, rotating shaft; 502, winding roller; 503, reduction motor; 6, elastic mechanism; 601, sleeve; 602, movable rod; 603, first spring; 7, friction mechanism; 701, fixed housing; 702, friction plate; 703, guide rod; 704, second spring; 8, extrusion mechanism; 801, support shaft; 802, cam; 803, worm gear; 804, worm; 9, transmission mechanism; 901, fixed frame; 902, rack; 903, gear Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model

[0023] The present utility model will be further described below in conjunction with the accompanying drawings

[0024] Such as Figures 1-5As shown in the figure, a suspension door for a forging furnace in a forging workshop includes a door frame 1. A door body 2 is slidably installed inside the door frame 1. A rope winding mechanism 5 is installed at the top of the door frame 1 for lifting the door body 2. A first cavity 201 is formed inside the door body 2. An elastic mechanism 6 is arranged in the first cavity 201. The top end of the elastic mechanism 6 is fixedly connected to a suspension plate 4. A suspension rope 3 is connected to the top of the suspension plate 4, and the top end of the suspension rope 3 is connected to the rope winding mechanism 5. Friction mechanisms 7 are arranged on both sides of the door body 2. The friction mechanism 7 includes a fixed shell 701. The fixed shell 701 is fixed on the side wall of the door body 2. A friction plate 702 is arranged inside the side wall of the fixed shell 701 close to the door frame 1. A guide rod 703 is fixedly connected to the side of the friction plate 702 close to the door body 2. The other end of the guide rod 703 extends into the door body 2. A second spring 704 is fixed on the friction plate 702, and the other end of the second spring 704 is fixedly connected to the side wall of the door body 2. An extrusion mechanism 8 for pushing the friction plate 702 is arranged inside the fixed shell 701. A second cavity 202 is formed on one side of the first cavity 201 close to the friction mechanism 7. A transmission mechanism 9 for enabling the suspension plate 4 to drive the extrusion mechanism 8 to rotate is arranged in the second cavity 202. The width of the second cavity 202 in the front-back direction is smaller than the width of the suspension plate 4, so as to ensure that the suspension plate 4 can only move up and down inside the first cavity 201. When the suspension rope 3 breaks, the elastic mechanism 6 contracts and drives the suspension plate 4 to move down. The suspension plate 4 drives the transmission mechanism 9 to operate, causing the extrusion mechanism 8 to rotate. The extrusion mechanism 8 pushes the friction plate 702 against the inner side walls of both sides of the door frame 1, so as to avoid the rapid downward fall of the door body 2 by using the friction between the friction plate 702 and the door frame 1, improving safety. During maintenance, only the door body 2 needs to be disassembled, the suspension rope 3 is reconnected to the suspension plate 4, and the elastic mechanism 6 and the transmission mechanism 9 are restored to their initial positions. The door body 2 is composed of two front and rear metal door panels spliced by bolts, which is convenient for disassembly and assembly, can realize rapid maintenance, and reduce the maintenance cost.

[0025] The extrusion mechanism 8 includes a support shaft 801. The support shaft 801 is connected to the inside of the fixed shell 701 through a bearing. A cam 802 and a worm gear 803 are fixedly connected to the support shaft 801. The worm gear 803 is located in front of the guide rod 703, and the cam 802 is located in front of the worm gear 803. After the cam 802 rotates, it can push the friction plate 702 to make the friction plate 702 contact the inner side wall of the door frame 1. The worm gear 803 meshes with a worm 804. One end of the worm 804 extends into the second cavity 202, and the worm 804 is rotatably connected to the door body 2.

[0026] The transmission mechanism 9 includes a fixed frame 901. The fixed frame 901 is fixedly connected to the suspension plate 4. A rack 902 is fixedly connected to the bottom of the fixed frame 901. The rack 902 meshes with a gear 903. The gear 903 is fixedly connected to the worm 804. The fixed frame 901, the rack 902 and the gear 903 are all located in the second cavity 202.

[0027] The elastic mechanism 6 includes a sleeve 601, which is welded to the inner bottom wall of the first cavity 201. A movable rod 602 is slidably connected inside the sleeve 601. The top end of the movable rod 602 is fixedly connected to the suspension plate 4. A first spring 603 is arranged inside the sleeve 601 and is fixedly connected to the bottom end of the movable rod 602. In the normal state, the first spring 603 is in a stretched state, and the suspension plate 4 abuts against the inner top wall of the first cavity 201. By pulling the suspension plate 4 upward through the suspension rope 3, the suspension plate 4 drives the door body 2 to move upward. When the suspension rope 3 breaks, the suspension plate 4 is not subjected to the pulling force of the suspension rope 3, and the first spring 603 shortens, causing the suspension plate 4 to move downward relative to the door body 2, thereby driving the rack 902 to drive the gear 903 to rotate. The gear 903 drives the worm 804 to rotate, and the worm 804 drives the worm wheel 803 to rotate. Finally, the cam 802 rotates to push the friction plate 702 against the inner side wall of the door frame 1, preventing the door body 2 from falling rapidly and improving safety.

[0028] The rope winding mechanism 5 includes a rotating shaft 501, which is rotatably installed on the top of the door frame 1 through a bearing seat. A winding roller 502 is fixedly connected to the rotating shaft 501. The suspension rope 3 is fixedly connected to the winding roller 502. A speed reduction motor 503 is fixedly connected to one side of the door frame 1, and the output shaft of the speed reduction motor 503 is fixedly connected to the rotating shaft 501.

[0029] Rubber sheets 101 are fixedly connected to the inner side walls on both sides of the door frame 1, and a rubber pad 102 is fixedly connected to the inner bottom wall of the door frame 1. By providing the rubber sheets 101, the friction between the friction plate 702 and the door frame 1 can be increased, enabling the door body 2 to stop falling rapidly. By providing the rubber pad 102, the sealing performance of the bottom of the door body 2 can be improved, and a certain buffering and shock absorption effect can be achieved.

[0030] Working principle: During use, the speed reduction motor 503 drives the rotating shaft 501 and the winding roller 502 to rotate. The winding roller 502 winds the suspension rope 3, and the suspension rope 3 pulls the suspension plate 4, causing the suspension plate 4 to drive the door body 2 to move upward. When the suspension rope 3 breaks, the suspension plate 4 is not subjected to the pulling force of the suspension rope 3. At this time, the first spring 603 shortens. Under the pulling force of the first spring 603, the movable rod 602 drives the suspension plate 4 to move downward relative to the door body 2. The suspension plate 4 drives the rack 902 to move downward relative to the door body 2. The rack 902 drives the gear 903 to rotate. The gear 903 drives the worm 804 to rotate. The worm 804 drives the worm wheel 803 to rotate. The worm wheel 803 drives the cam 802 to rotate through the support shaft 801, causing the cam 802 to push the friction plate 702 against the inner side wall of the door frame 1. The friction between the friction plate 702 and the door frame 1 is used to prevent the door body 2 from falling rapidly and improve safety.

[0031] The above has shown and described the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed.

Claims

1. A hanging door for a forging furnace in a forging workshop, comprising a door frame (1), a door body (2) being slidably mounted inside the door frame (1), a rope winding mechanism (5) being mounted on the top of the door frame (1), characterized in that: A first cavity (201) is provided inside the door body (2), an elastic mechanism (6) is provided inside the first cavity (201), a hanging plate (4) is fixedly connected to the top of the elastic mechanism (6), a hanging rope (3) is connected to the top of the hanging plate (4), the top of the hanging rope (3) is connected to the rope winding mechanism (5), friction mechanisms (7) are provided on both sides of the door body (2), the friction mechanism (7) comprises a fixed shell (701), the fixed shell (701) is fixed on the side wall of the door body (2), a friction plate (702) is provided inside the side wall of the fixed shell (701) close to the door frame (1), and a guide rod is fixedly connected to the side of the friction plate (702) close to the door body (2). (703), the other end of the guide rod (703) extends into the interior of the door body (2), a second spring (704) is fixed on the friction plate (702), the other end of the second spring (704) is fixed to the side wall of the door body (2), an extrusion mechanism (8) for pushing the friction plate (702) is arranged in the fixed shell (701), a second cavity (202) is opened on the side of the first cavity (201) close to the friction mechanism (7), a transmission mechanism (9) is arranged in the second cavity (202) for enabling the hanging plate (4) to drive the extrusion mechanism (8) to rotate, and the width of the second cavity (202) in the front-to-back direction is smaller than the width of the hanging plate (4).

2. A hanging door for a forging furnace in a forging workshop according to claim 1, characterized in that: The extrusion mechanism (8) includes a support shaft (801), and the support shaft (801) is rotatably connected to the inside of the fixed shell (701). A cam (802) and a worm gear (803) are fixedly connected to the support shaft (801). The worm gear (803) is meshed with a worm (804), and one end of the worm (804) extends into the second cavity (202). The worm (804) is rotatably connected to the door body (2).

3. A hanging door for a forging furnace in a forging workshop according to claim 2, characterized in that: The transmission mechanism (9) comprises a fixed frame (901), the fixed frame (901) is fixedly connected to the hanging plate (4), a rack (902) is fixedly connected to the bottom of the fixed frame (901), the rack (902) is meshed with a gear (903), the gear (903) is fixedly connected to the worm (804), and the fixed frame (901), the rack (902) and the gear (903) are all located in the second cavity (202).

4. The hanging door for a forging furnace in a forging workshop according to claim 1, characterized in that: The elastic mechanism (6) includes a sleeve (601), the sleeve (601) is fixedly connected to the bottom wall of the first cavity (201), a movable rod (602) is slidably connected inside the sleeve (601), the top end of the movable rod (602) is fixedly connected to the hanging plate (4), and a first spring (603) is arranged inside the sleeve (601), and the first spring (603) is fixedly connected to the bottom end of the movable rod (602).

5. The hanging door for a forging furnace in a forging workshop according to claim 1, characterized in that: The rope winding mechanism (5) comprises a rotating shaft (501), the rotating shaft (501) is rotatably mounted on the top of the door frame (1) via a bearing seat, a winding roller (502) is fixedly connected to the rotating shaft (501), the suspension rope (3) is fixedly connected to the winding roller (502), a reduction motor (503) is fixedly connected to one side of the door frame (1), and an output shaft of the reduction motor (503) is fixedly connected to the rotating shaft (501).

6. The hanging door for a forging furnace in a forging workshop according to claim 1, characterized in that: Rubber sheets (101) are fixedly connected to the inner walls on both sides of the door frame (1), and a rubber pad (102) is fixedly connected to the inner bottom wall of the door frame (1).

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