Gantry and door repair station

Abstract

The utility model embodiment provides a kind of furnace door repair station landing gear and furnace door repair station, comprising: furnace door repair station landing gear, rotary seat, hoisting equipment and mobile maintenance vehicle.Furnace door repair station landing gear includes: main frame, roller support plate and cross bolt hook plate.Compared with conventional landing gear, the embodiment structure of the present application is simple, without using furnace door rotating mechanical device, economical and practical.Hoisting equipment and rotary seat cooperate, after the furnace door repair station landing gear is erected, the turnover operation to the furnace door to be overhauled can be completed by artificial, substantially reduce the production cost of furnace door repair station landing gear and the maintenance cost of furnace door.At the same time, since there is no motor directly driving furnace door and landing gear to rotate together to turn over furnace door, the occurrence of safety accidents such as easy to cause the motor oil leakage, damage is avoided, the safety factor of furnace door repair station is increased, so that furnace door repair station is safe and reliable.

Description

Technical Field

[0001] This utility model relates to the technical field of coke oven door repair equipment, and in particular to a lifting frame for a coke oven door repair station and a coke oven door repair station. Background Technology

[0002] Coke ovens are core equipment in modern coking processes, and the sealing performance of coke oven doors directly affects their energy efficiency and environmental compliance. However, due to the long-term exposure to high temperatures and corrosive gases, coke oven doors are prone to problems such as edge deformation, wear on the sealing surface, and refractory material detachment, leading to coke oven gas leakage, increased energy consumption, and environmental pollution. Therefore, the maintenance of coke oven doors is extremely important to ensure normal coke oven production.

[0003] When a coke oven door is severely damaged, it is difficult to repair it on-site, and it needs to be transported to a door repair station for maintenance. Currently, there are two types of door lifting frames commonly used in door repair stations. One type uses a track to tilt the door onto a maintenance trolley for repair, and can directly drive the door and lifting frame to rotate 180° horizontally using a motor (rotating mechanical device) to repair the inside and outside of the door. The other type of door lifting frame uses a motor (rotating mechanical device) to directly drive the door and lifting frame to rotate 180° vertically, and after rotation, it can lower the door and lifting frame horizontally for door repair.

[0004] While both methods described above can provide comprehensive furnace door repair, they share a common problem: during the furnace door tilting repair step, the motor directly drives the furnace door and lifting frame to rotate together. This significantly increases the motor load, easily leading to safety accidents such as oil leaks and damage, and severely impacting the smooth progress of furnace door repair and the safe operation of the furnace door lifting frame. Furthermore, after the furnace door and lifting frame are lowered, the furnace door needs to be hoisted to another location for repair (otherwise, it's impossible to repair the door's edges, etc.). Therefore, additional repair space is required for severely damaged furnace doors. Utility Model Content

[0005] The purpose of this utility model embodiment is to provide a furnace door repair station lifting frame and furnace door repair station, so as to avoid the above two methods where the motor directly drives the furnace door and the lifting frame to rotate together to flip the furnace door, thereby increasing the safety factor of the furnace door repair station. The specific technical solution is as follows:

[0006] A furnace door repair station landing gear includes:

[0007] The main frame includes a top frame, a bottom frame, a first side frame, and a second side frame, which are sequentially connected to form a furnace door passage. The bottom of the main frame can be fixed to the rotating bracket of a rotary seat. The rotating platform and the base of the rotary seat are rotatably connected in the vertical direction, and the rotating bracket and the rotating platform are rotatably connected in the horizontal direction. The top of the main frame can be lifted by a lifting device.

[0008] The idler roller support plate is disposed on the first side frame and the second side frame, and is located on the first side of the furnace door passage, for supporting the idler roller of the furnace door to be repaired;

[0009] A horizontal bolt hook plate is provided on the first side frame and the second side frame, and is located on the first side of the furnace door passage. The horizontal bolt hook plate has an upward-opening hook groove for supporting the horizontal bolt of the furnace door to be repaired.

[0010] In some embodiments, above the idler roller support plate, the first side frame and the second side frame are provided with a first recess protruding outward from the furnace door passage. The first recess forms an idler roller passage through which the idler roller passes after the furnace door to be inspected moves upward relative to the main frame a predetermined distance.

[0011] Above the horizontal bolt hook plate, the first side frame and the second side frame are provided with a second recess protruding outward from the furnace door passage. The second recess forms a horizontal bolt passage through which the horizontal bolt passes after the furnace door to be inspected moves upward relative to the main frame by the predetermined distance.

[0012] In some embodiments, the horizontal bolt hook plate includes an upper horizontal bolt hook plate and a lower horizontal bolt hook plate, both disposed on the first side frame and the second side frame;

[0013] In the height direction of the landing gear, the lower cross bolt hook plate, the idler roller support plate, and the upper cross bolt hook plate are arranged in sequence;

[0014] The second recess includes a first sub-recess and a second sub-recess. The first sub-recess is disposed above the upper horizontal bolt hook plate to form an upper horizontal bolt channel, and the second sub-recess is disposed above the lower horizontal bolt hook plate to form a lower horizontal bolt channel.

[0015] In some embodiments, the upper horizontal bolt hook plate includes: an upper vertical plate and an upper side retaining groove;

[0016] The upper side groove has openings on one side and top. The opening on one side of the upper side groove is located on the outer side wall of the upper vertical plate and communicates with the hook groove of the upper vertical plate.

[0017] In some embodiments, the lower horizontal bolt hook plate includes: a lower vertical plate, a lower side groove, and a locking rod;

[0018] The lower side groove has openings on one side and top. The opening on one side of the lower side groove is located on the outer side wall of the lower vertical plate and communicates with the hook groove of the lower vertical plate.

[0019] The locking rod is slidably inserted into the insertion holes on both sides of the top opening of the lower side groove, and is used to lock the lower horizontal bolt of the furnace door to be inspected into the lower side groove.

[0020] In some embodiments, the first distance between the upper horizontal bolt hook plate and the first sub-recess, the second distance between the idler roller support plate and the first sub-recess, and the third distance between the lower horizontal bolt hook plate and the second sub-recess are the predetermined distances. In the height direction of the landing gear, the first distance between the upper horizontal bolt hook plate and the first sub-recess, the second distance between the idler roller support plate and the first sub-recess, and the third distance between the lower horizontal bolt hook plate and the second sub-recess are equal.

[0021] The predetermined distance is between 50mm and 150mm.

[0022] In some embodiments, the opening size of the furnace door channel gradually decreases from the first side of the furnace door channel to the second side of the furnace door channel.

[0023] In some embodiments, the first side frame is a first side plate, and the second side frame is a second side plate;

[0024] On the first side of the furnace door passage, the first side plate and the second side plate are inclined toward the outside of the main frame, so that the opening size of the furnace door passage gradually decreases.

[0025] A furnace door repair station, comprising:

[0026] The aforementioned furnace door repair station landing gear;

[0027] A rotary support includes a base, a rotating platform, and a rotating bracket. The rotating platform and the base are rotatably connected by a vertical axis, and the rotating bracket and the rotating platform are rotatably connected by a horizontal axis. The rotating bracket is used to fix the bottom of the main frame.

[0028] Lifting equipment for lifting the top of the main frame;

[0029] Mobile maintenance vehicle, used to support furnace doors to be inspected.

[0030] In some embodiments, the lifting equipment includes: a winch and a fixed pulley;

[0031] The fixed pulley is used to fix the rotary seat above it. The wire rope of the winch is used to pass through the fixed pulley and connect to the top of the main frame to lift or lower the furnace door repair station landing gear.

[0032] This utility model provides a furnace door repair station lifting frame and furnace door repair station. The furnace door repair station lifting frame includes a main frame, a roller support plate, and a horizontal bolt hook plate. The main frame includes a top frame, a bottom frame, a first side frame, and a second side frame. The top frame, the first side frame, the bottom frame, and the second side frame are sequentially connected to form a furnace door passage. The bottom of the main frame can be fixed to the rotating bracket of a rotary seat. The rotating platform and the base of the rotary seat are rotatably connected by a vertical axis, and the rotating bracket and the rotating platform are rotatably connected by a horizontal axis. The top of the main frame can be lifted by a lifting device. The roller support plate is disposed on the first side frame and the second side frame, and is located on the first side of the furnace door passage, for supporting the rollers of the furnace door to be repaired. The horizontal bolt hook plate is disposed on the first side frame and the second side frame, and is located on the first side of the furnace door passage. The horizontal bolt hook plate has an upward-opening hook groove for supporting the horizontal bolt of the furnace door to be repaired. The rotary support includes a base, a rotating platform, and a rotating bracket. The rotating platform and the base are rotatably connected via a vertical axis, and the rotating bracket and the rotating platform are rotatably connected via a horizontal axis. The rotating bracket is used to fix the bottom of the main frame. A lifting device is used to lift the top of the main frame. A mobile maintenance trolley is used to support the furnace door to be inspected.

[0033] After one side of the furnace door to be repaired is repaired, in the step where the furnace door to be repaired needs to be flipped over to repair the other side, the furnace door to be repaired is placed on the mobile repair vehicle, the rotating bracket and the bottom of the main frame are fixed, and the furnace door to be repaired is set on the furnace door repair station lifting frame (the horizontal bolt that lifts the furnace door to be repaired is inserted into the hook groove of the horizontal bolt hook plate. In the insertion step, for example, the mobile repair vehicle can be moved toward the rotary seat so that the horizontal bolt that lifts the furnace door to be repaired is inserted into the hook groove of the horizontal bolt hook plate).

[0034] Then, the top of the main frame is lifted using lifting equipment, and the furnace door to be inspected and the furnace door repair station lifting frame are pulled from a horizontal state to a vertical state (the rotating bracket and the rotating table rotate approximately 90 degrees through the horizontal axis).

[0035] Next, workers manually rotate the furnace door to be inspected and the furnace door repair station's lifting platform together 180 degrees vertically (the rotating bracket and the rotating platform rotate 180 degrees via a vertical axis). Then, using lifting equipment, the top of the main frame is lowered, and the furnace door to be inspected and the furnace door repair station's lifting platform are lowered from a vertical position to a horizontal position. This completes the flipping of the furnace door to be inspected.

[0036] Compared to conventional landing gear, this solution features a simpler structure, eliminating the need for a furnace door rotation mechanism, lifting equipment, and a slewing base. After the landing gear for the furnace door repair station is erected, the furnace door to be inspected can be flipped manually, significantly reducing the production cost of the landing gear and the maintenance cost of the furnace door. Furthermore, since there is no direct motor rotation of the furnace door and landing gear to flip the door, it avoids potential safety hazards such as oil leaks or damage to the motor, increasing the safety factor of the furnace door repair station.

[0037] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0038] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0039] Figure 1 This is a schematic diagram of the structure of a furnace door repair station provided in an embodiment of this application;

[0040] Figure 2 for Figure 1 The diagram shows the landing gear structure of the furnace door repair station.

[0041] Figure 3 for Figure 1 The diagram shows the structure of the furnace door repair station, where the furnace door to be repaired is placed on the lifting frame.

[0042] Figure 4 for Figure 1 A schematic diagram of the rotary table structure of the furnace door repair station shown;

[0043] Figure 5 for Figure 1 The diagram shows the mobile repair vehicle of the furnace door repair station, the landing gear of the mobile furnace door repair station, and the structure of the furnace door to be repaired.

[0044] Figure 6 for Figure 1 The diagram shows the lifting equipment for the furnace door repair station, including the lifting frame.

[0045] Figure 7 for Figure 3 Enlarged view of A in the middle;

[0046] Figure 8 for Figure 1 The diagram shows the main structural view of the landing gear of the furnace door repair station.

[0047] The attached diagram is described below:

[0048] Furnace door 100, idler roller 101, horizontal bolt 102 to be inspected;

[0049] Furnace door repair station landing gear 1,

[0050] Main frame 11, top frame 111, bottom frame 112, first side frame 113, second side frame 114, furnace door passage 115, roller passage 1151, horizontal bolt passage 1152, upper horizontal bolt passage 11521, lower horizontal bolt passage 11522, roller support plate 12, horizontal bolt hook plate 13, hook groove 130, upper horizontal bolt hook plate 131, upper vertical plate 1311, upper side stop groove 1312, lower horizontal bolt hook plate 132, lower vertical plate 1321, lower side stop groove 1322, insertion hole 13221, locking rod 1323, first recess 14, second recess 15, first sub-recess 151, second sub-recess 152;

[0051] Rotary seat 2, base 21, rotating table 22, rotating bracket 23, vertical shaft 24, horizontal shaft 25, pin 26;

[0052] Lifting equipment 3, winch 31, wire rope 311, fixed pulley 32, mobile maintenance vehicle 4. Detailed Implementation

[0053] 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 based on this application are within the protection scope of the present utility model.

[0054] In existing technologies, the process of rotating the furnace door and the lifting frame together using a motor during furnace door rotation repair suffers from high manufacturing costs, complex operation procedures, insufficient safety and stability, and the need for additional repair space for severely damaged coke oven doors. The purpose of this invention, as described in the following embodiments, is to provide a furnace door repair station lifting frame and furnace door repair station to reduce the use of furnace door rotation machinery and avoid the situation in existing technologies where a motor directly rotates the furnace door and lifting frame together to rotate the furnace door. This solution is not only simple in structure, convenient in operation, and safe and reliable, but also more economical than traditional lifting frames, and provides more space for furnace door repair.

[0055] Example 1

[0056] Figure 1 This is a structural schematic diagram of a furnace door repair station provided in an embodiment of this application, as shown below. Figure 1 As shown, a furnace door repair station includes: a furnace door repair station lifting frame 1, a slewing seat 2, a lifting device 3, and a mobile repair vehicle 4.

[0057] Figure 2 for Figure 1 The diagram shown is a structural schematic of the landing gear 1 for the furnace door repair station. Figure 3 for Figure 1 The diagram shows the structure of the furnace door repair station, specifically the landing gear 1 that holds the furnace door 100 to be repaired. Figure 2 and Figure 3 As shown, the lifting frame 1 of the furnace door repair station is used to lift the furnace door 100 to be repaired.

[0058] The furnace door repair station lifting frame 1 includes: a main frame 11, a roller support plate 12, and a horizontal bolt hook plate 13. The main frame 11 includes a top frame 111, a bottom frame 112, a first side frame 113, and a second side frame 114. The top frame 111, the first side frame 113, the bottom frame 112, and the second side frame 114 are sequentially connected to form a furnace door passage 115. The bottom of the main frame 11 can be fixed to the rotating bracket 23 of the rotary seat 2. The rotating platform 22 of the rotary seat 2 and the base 21 of the rotary seat 2 are rotatably connected by a vertical axis 24. The rotating bracket 23 and the rotating platform 22 are rotatable by a horizontal axis 25. The main frame 11 is connected in a movable manner; the top of the main frame 11 can be lifted by the lifting equipment 3; the roller support plate 12 is set on the first side frame 113 and the second side frame 114, and is located on the first side of the furnace door passage 115, for supporting the roller 101 of the furnace door 100 to be repaired; the horizontal bolt hook plate 13 is set on the first side frame 113 and the second side frame 114, and is located on the first side of the furnace door passage 115, the horizontal bolt hook plate 13 has an upward-opening hook groove 130 for supporting the horizontal bolt 102 of the furnace door 100 to be repaired. That is, when the furnace door repair station lifting frame 1 is in the upright state and lifting the furnace door 100 to be repaired, the furnace door 100 to be repaired is located on the first side of the furnace door passage 115, the horizontal bolt 102 of the furnace door 100 to be repaired is inserted into the hook groove 130 of the horizontal bolt hook plate 13, and the roller 101 of the furnace door 100 to be repaired is supported on the roller support plate 12.

[0059] Figure 4 for Figure 1 The schematic diagram of the rotary seat 2 of the furnace door repair station shown is as follows: Figure 4As shown, the rotary base 2 includes a base 21, a rotating platform 22, and a rotating bracket 23. The base 21 is fixed. The rotating platform 22 and the base 21 are rotatably connected via a vertical shaft 24. The rotating bracket 23 and the rotating platform 22 are rotatably connected via a horizontal shaft 25. The rotating bracket 23 is used to fix the bottom of the main frame 11. A pin 26 is pluggably connected between the rotating platform 22 and the base 21. When the rotating platform 22 and the base 21 are connected via the pin 26, the rotation of the rotating platform 22 is restricted. After the pin 26 is removed from the rotating platform 22, the restriction on the rotation of the rotating platform 22 is released, and the rotating platform 22 can rotate relative to the base 21 via the vertical shaft 24.

[0060] The lifting device 3 is used to lift the top of the main frame 11. The mobile maintenance vehicle 4 is used to support the furnace door 100 to be inspected.

[0061] Combination Figure 1 As shown, after one side of the furnace door 100 to be repaired is repaired, in the step where the furnace door 100 to be repaired needs to be flipped over to repair the other side, the furnace door 100 to be repaired is placed on the mobile repair vehicle 4, the rotating bracket 23 and the bottom of the main frame 11 are fixed, and the furnace door 100 to be repaired is set on the furnace door repair station landing gear 1 (the horizontal bolt 102 of the furnace door 100 to be repaired is inserted into the hook groove 130 of the horizontal bolt hook plate 13. In the insertion step, for example, the mobile repair vehicle 4 can be moved toward the rotary seat 2 so that the horizontal bolt 102 of the furnace door 100 to be repaired is inserted into the hook groove 130 of the horizontal bolt hook plate 13).

[0062] Then, the top of the main frame 11 is lifted using the lifting equipment 3, and the furnace door 100 to be repaired and the furnace door repair station lifting frame 1 are pulled from the horizontal state to the vertical state (the rotating table 22 and the base 21 are fixed by the pin 26, and the rotating bracket 23 rotates about 90 degrees around the horizontal axis 25).

[0063] Next, the furnace door 100 to be inspected and the furnace door repair station landing gear 1 are manually rotated 180 degrees vertically (the pin 26 is removed from the rotating platform 22, thereby releasing the fixing of the rotating platform 22 and the base 21, and the rotating bracket 23 and the rotating platform 22 rotate 180 degrees together around the vertical axis 24). The top of the main frame 11 is lowered using the lifting equipment 3, and the furnace door 100 to be inspected and the furnace door repair station landing gear 1 are lowered from the vertical state to the horizontal state. In this way, the flipping of the furnace door 100 to be inspected can be completed.

[0064] Finally, after disengaging the furnace door 100 to be repaired and the furnace door repair station landing gear 1 (separating the horizontal bolt 102 of the furnace door 100 and the hook groove 130 of the horizontal bolt hook plate 13), the top of the main frame 11 is lifted using the lifting equipment 3, and the furnace door repair station landing gear 1 is pulled up from the horizontal state to the vertical state (the rotating platform 22 and the base 21 are fixed in place by the pin 26, and the rotating bracket 23 rotates about 90 degrees around the horizontal axis 25), so that the furnace door 100 to be repaired and the furnace door repair station landing gear 1 are separated, so that the furnace door 100 to be repaired can be repaired.

[0065] Specifically, such as Figure 1 As shown, the lifting equipment 3 includes a winch 31 and a fixed pulley 32; the fixed pulley 32 is used to fix above the slewing seat 2, and the wire rope 311 of the winch 31 is used to pass through the fixed pulley 32 and connect to the top of the main frame 11 to lift or lower the furnace door repair station lifting frame 1.

[0066] In some embodiments, the top frame 111 is provided with a connecting portion for connecting to the lifting device 3.

[0067] The steps for using lifting equipment 3 to lift the top of the main frame 11 are as follows: the wire rope 311 of the winch 31 passes through the fixed pulley 32 and is connected to the connection part of the top frame 111, and then the wire rope 311 is tightened, so that the winch 31 can lift the main frame 11.

[0068] The step of using lifting equipment 3 to lower the top of the main frame 11 is as follows: the winch 31 lowers the wire rope 311, and the winch 31 can lower the main frame 11.

[0069] Compared to conventional landing gear, this embodiment has a simpler structure, eliminates the need for a furnace door rotation mechanism, and is more economical. The lifting device 3 and the slewing seat 2 work together to erect the furnace door repair station landing gear 1. The furnace door 100 to be inspected can then be manually rotated, significantly reducing the production cost of the landing gear 1 and the maintenance cost of the furnace door. Furthermore, since there is no direct motor rotation of the furnace door and landing gear to rotate the furnace door, safety hazards such as motor oil leaks and damage are avoided, improving the safety factor of the furnace door repair station and making it safe and reliable.

[0070] In addition, in the embodiments of this solution, when repairing the furnace door 100 to be repaired, it is only necessary to use the lifting equipment 3 to lift the furnace door repair station landing gear 1 and separate the furnace door 100 to be repaired from the furnace door repair station landing gear 1, so that the furnace door 100 to be repaired can be repaired without providing additional repair space for the severely damaged furnace door 100 to be repaired, thereby saving repair space.

[0071] To facilitate faster and more convenient switching between the inside and outside of the furnace door for maintenance, and to improve the flexibility of the maintenance methods, the implementation method of this solution is further described in detail below. For example... Figure 2 and Figure 3 As shown, in a specific implementation, above the idler roller support plate 12, the first side frame 113 and the second side frame 114 are provided with a first recess 14 protruding outward from the furnace door passage 115. The first recess 14 allows the idler roller 101 to pass through the idler roller passage 1151 of the furnace door passage 115 after the furnace door 100 to be inspected moves upward relative to the main frame 11 by a predetermined distance. Above the horizontal bolt hook plate 13, the first side frame 113 and the second side frame 114 are provided with a second recess 15 protruding outward from the furnace door passage 115. The second recess 15 allows the horizontal bolt 102 to pass through the horizontal bolt passage 1152 of the furnace door passage 115 after the furnace door 100 to be inspected moves upward relative to the main frame 11 by the predetermined distance.

[0072] Figure 5 for Figure 1 The diagram shows the structure of the mobile repair vehicle 4 of the furnace door repair station, which moves and separates the furnace door repair station landing gear 1 and the furnace door 100 to be repaired. Figure 1 and Figure 5 As shown, in the above steps, after the furnace door 100 to be inspected and the furnace door repair station landing gear 1 are lowered from a vertical position to a horizontal position, the moving inspection vehicle 4 pushes the furnace door 100 away from the rotary seat 2. Since the furnace door repair station landing gear 1 is connected to the rotary seat 2 and remains stationary, the furnace door 100 to be inspected separates from the furnace door repair station landing gear 1, causing the furnace door 100 to be inspected to move upward a predetermined distance relative to the main frame 11 and then stop. At this time, in the vertical direction, the idler roller 101 is aligned with the idler roller channel 1151 of the furnace door channel 115, and the horizontal bolt 102 is aligned with the horizontal bolt channel 1152 of the furnace door channel 115.

[0073] after, Figure 6 for Figure 1 The diagram shows the lifting equipment 3 of the furnace door repair station, which is the lifting frame 1 of the furnace door repair station. Figure 6As shown, the wire rope 311 of the winch 31 passes through the fixed pulley 32 and is connected to the connecting part of the top frame 111. Then, by tightening the wire rope 311, the winch 31 can lift the main frame 11 to a vertical position. The idler roller 101 of the furnace door 100 to be inspected passes through the idler roller channel 1151 of the furnace door channel 115, and the horizontal bolt 102 passes through the horizontal bolt channel 1152 of the furnace door channel 115. The furnace door 100 to be inspected is in a horizontal position and remains stationary on the mobile inspection vehicle 4, achieving convenient separation between the furnace door 100 to be inspected and the furnace door repair station lifting frame 1. This facilitates subsequent maintenance of the furnace door 100 by workers. The separation operation between the furnace door 100 to be inspected and the furnace door repair station lifting frame 1 is relatively simple. Furthermore, during furnace door maintenance, the main frame 11, equipped with the first recess 14 and the second recess 15, provides workers with additional operating space, thereby improving the efficiency and accuracy of worker maintenance.

[0074] Typically, the horizontal bolt hook plate 13 includes an upper horizontal bolt hook plate 131 and a lower horizontal bolt hook plate 132, both disposed on the first side frame 113 and the second side frame 114. In the height direction of the landing gear, the lower horizontal bolt hook plate 132, the idler roller support plate 12, and the upper horizontal bolt hook plate 131 are arranged sequentially. Correspondingly, the second recess 15 includes a first sub-recess 151 and a second sub-recess 152. The first sub-recess 151 is disposed above the upper horizontal bolt hook plate 131, forming an upper horizontal bolt channel 11521. The second sub-recess 152 is disposed above the lower horizontal bolt hook plate 132, forming a lower horizontal bolt channel 11522.

[0075] The horizontal bolt 102 of the furnace door 100 to be inspected includes an upper horizontal bolt and a lower horizontal bolt. The upper horizontal bolt can be inserted into the hook groove 130 of the upper horizontal bolt hook plate 131, and the lower horizontal bolt can be inserted into the hook groove 130 of the lower horizontal bolt hook plate 132. After the mobile maintenance trolley 4 pushes the furnace door 100 to be inspected away from the rotary seat 2, the upper horizontal bolt and the hook groove 130 of the upper horizontal bolt hook plate 131 separate, and the lower horizontal bolt and the hook groove 130 of the lower horizontal bolt hook plate 132 separate.

[0076] During the process of hoisting the main frame 11 to a vertical position by the winch 31, the upper horizontal bolt of the furnace door 100 to be inspected will pass through the upper horizontal bolt channel 11521 of the furnace door channel 115, and the lower horizontal bolt of the furnace door 100 to be inspected will pass through the lower horizontal bolt channel 11522 of the furnace door channel 115.

[0077] Specifically, the upper horizontal bolt hook plate 131 includes: an upper vertical plate 1311 and an upper side retaining groove 1312; the upper side retaining groove 1312 has openings on one side and at the top, and the opening on one side of the upper side retaining groove 1312 is located on the outer side wall of the upper vertical plate 1311 and communicates with the hook groove 130 of the upper vertical plate 1311. There are two upper horizontal bolt hook plates 131, and the upper vertical plates 1311 of the two upper horizontal bolt hook plates 131 are respectively located on the first side frame 113 and the second side frame 114. The two sides of the upper horizontal bolt can be inserted into the upper side retaining grooves 1312 of the two upper horizontal bolt hook plates 131 (through the top opening of the upper side retaining groove 1312), and the upper side retaining grooves 1312 of the two upper horizontal bolt hook plates 131 can restrict the displacement of the two sides of the upper horizontal bolt.

[0078] Figure 7 for Figure 3 Enlarged view of A in the diagram, as shown Figure 7 As shown, the lower horizontal bolt hook plate 132 includes: a lower vertical plate 1321, a lower side groove 1322, and a locking rod 1323; the lower side groove 1322 has openings on one side and at the top, and the opening on one side of the lower side groove 1322 is located on the outer side wall of the lower vertical plate 1321 and communicates with the hook groove 130 of the lower vertical plate 1321; the locking rod 1323 is slidably inserted into the insertion holes 13221 on both side walls at the top opening of the lower side groove 1322, for locking the lower horizontal bolt of the furnace door 100 to be inspected into the lower side groove 1322.

[0079] After the sliding locking rod 1323 leaves the top opening of the lower side retaining groove 1322, both sides of the lower horizontal bolt can be inserted into the lower side retaining groove 1322 of the lower horizontal bolt hook plates 132 on both sides (through the top opening of the lower side retaining groove 1322). The lower side retaining groove 1322 of the lower horizontal bolt hook plates 132 on both sides can restrict the displacement of the lower horizontal bolt on both sides. Then, the locking rod 1323 can be slid again until it is slid to the top opening of the lower side retaining groove 1322. After it is above the lower horizontal bolt hook plate 132, the locking rod 1323 can lock the lower horizontal bolt of the furnace door 100 to be inspected into the lower side retaining groove 1322.

[0080] The predetermined distances are defined as follows: a first distance between the upper horizontal bolt hook plate 131 and the first sub-recess 151; a second distance between the idler roller support plate 12 and the first recess 14; and a third distance between the lower horizontal bolt hook plate 132 and the second sub-recess 152. In the height direction of the landing gear, the first distance between the upper horizontal bolt hook plate 131 and the first sub-recess 151, the second distance between the idler roller support plate 12 and the first recess 14, and the third distance between the lower horizontal bolt hook plate 132 and the second sub-recess 152 are all equal. The predetermined distances range from 50mm to 150mm. The predetermined distances can be set according to the height of the furnace door 100 to be inspected, for example, any value among 50mm, 75mm, 90mm, 115mm, 140mm, and 150mm. The requirement is that after the mobile maintenance vehicle 4 moves a predetermined distance, the roller 101 of the furnace door 100 to be maintained and the roller channel 1151 of the furnace door channel 115 are aligned, and the horizontal bolt 102 of the furnace door 100 to be maintained and the horizontal bolt channel 1152 of the furnace door channel 115 are aligned.

[0081] Figure 8 for Figure 1 The schematic diagram of the main structure of the furnace door repair station landing gear 1 shown is as follows: Figure 8 As shown, in a specific implementation, the first side frame 113 is the first side plate, and the second side frame 114 is the second side plate.

[0082] The first side plate is provided with an upper horizontal bolt channel 11521 and a lower horizontal bolt channel 11522 from top to bottom. The second side plate is provided with an upper horizontal bolt channel 11521 and a lower horizontal bolt channel 11522 from top to bottom. The upper horizontal bolt channel 11521 of the first side plate and the upper horizontal bolt channel 11521 of the second side plate are at the same height. The lower horizontal bolt channel 11522 of the first side plate and the lower horizontal bolt channel 11522 of the second side plate are at the same height.

[0083] In some embodiments, when the furnace door 100 to be repaired is placed on the furnace door repair station lifting frame, the roller support plate 12 supports the roller 101 of the furnace door 100 to be repaired, the horizontal bolt hook plate 13 supports the horizontal bolt 102 of the furnace door 100 to be repaired, and there is a gap between the top of the furnace door 100 to be repaired and the top frame 111, the gap being greater than a predetermined distance.

[0084] In some embodiments, the spacing ranges from 75 mm to 100 mm.

[0085] Example 2

[0086] A furnace door repair station landing gear 1 is provided, which adopts the furnace door repair station landing gear 1 in the above embodiment.

[0087] The embodiments of this application have at least the following advantages:

[0088] a) Firstly, the structure is simple. The furnace door repair station lifting frame 1 is mainly composed of steel plates, stiffening plates, and structural steel, eliminating the need for rotating mechanical devices, which greatly reduces production costs, makes it less prone to damage, and is convenient and quick to maintain. The furnace door repair station lifting frame 1 and the furnace door 100 to be repaired can rotate 180° vertically, facilitating alternating repairs of the furnace door 100 from both sides.

[0089] (b) The main frame 11 of the furnace door repair station landing gear 1 is provided with a first recess 14 and a second recess 15. The moving maintenance trolley 4 pushes the furnace door 100 to be repaired away from the rotary seat 2, so that the idler roller 101 is aligned with the idler roller channel 1151 of the furnace door channel 115, and the horizontal bolt 102 is aligned with the horizontal bolt channel 1152 of the furnace door channel 115. The lifting equipment 3 lifts the furnace door repair station landing gear 1, which can easily separate the furnace door 100 to be repaired from the furnace door repair station landing gear 1.

[0090] The above description is merely a preferred embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model are included within the scope of protection of this utility model.

Claims

1. A landing gear for a furnace door repair station, characterized in that, include: The main frame (11) includes a top frame (111), a bottom frame (112), a first side frame (113), and a second side frame (114). The top frame (111), the first side frame (113), the bottom frame (112), and the second side frame (114) are connected in sequence to form a furnace door passage (115). The bottom of the main frame (11) can be fixed to the rotating bracket (23) of the rotary seat (2). The rotating platform (22) of the rotary seat (2) and the base (21) of the rotary seat (2) are rotatably connected by a vertical axis (24). The rotating bracket (23) and the rotating platform (22) are rotatably connected by a horizontal axis (25). The top of the main frame (11) can be lifted by a lifting device (3). The idler roller support plate (12) is disposed on the first side frame (113) and the second side frame (114) and is located on the first side of the furnace door passage (115) for supporting the idler roller (101) of the furnace door (100) to be repaired; A horizontal bolt hook plate (13) is provided on the first side frame (113) and the second side frame (114), and is located on the first side of the furnace door passage (115). The horizontal bolt hook plate (13) has an upward-opening hook groove (130) for supporting the horizontal bolt (102) of the furnace door (100) to be repaired.

2. The furnace door repair station landing gear according to claim 1, characterized in that, Above the idler roller support plate (12), the first side frame (113) and the second side frame (114) are provided with a first recess (14) protruding outward from the furnace door passage (115). The first recess (14) constitutes an idler roller passage (1151) through the furnace door passage (115) after the furnace door (100) to be inspected moves upward relative to the main frame (11) by a predetermined distance. Above the horizontal bolt hook plate (13), the first side frame (113) and the second side frame (114) are provided with a second recess (15) protruding outward from the furnace door passage (115). The second recess (15) forms a horizontal bolt passage (1152) through the furnace door passage (1152) after the furnace door (100) to be inspected moves upward relative to the main frame (11) by the predetermined distance.

3. The furnace door repair station landing gear according to claim 2, characterized in that, The horizontal bolt hook plate (13) includes an upper horizontal bolt hook plate (131) and a lower horizontal bolt hook plate (132) both disposed on the first side frame (113) and the second side frame (114); The lower horizontal bolt hook plate (132), the idler roller support plate (12), and the upper horizontal bolt hook plate (131) are arranged from bottom to top; The second recess (15) includes a first sub-recess (151) and a second sub-recess (152). The first sub-recess (151) is disposed above the upper horizontal bolt hook plate (131) to form an upper horizontal bolt channel (11521). The second sub-recess (152) is disposed above the lower horizontal bolt hook plate (132) to form a lower horizontal bolt channel (11522).

4. The furnace door repair station lifting frame according to claim 3, characterized in that, The upper horizontal bolt hook plate (131) includes: an upper vertical plate (1311) and an upper side retaining groove (1312); The upper side groove (1312) has openings on one side and top. The opening on one side of the upper side groove (1312) is located on the outer side wall of the upper vertical plate (1311) and communicates with the hook groove (130) of the upper vertical plate (1311).

5. The furnace door repair station lifting frame according to claim 3, characterized in that, The lower horizontal bolt hook plate (132) includes: a lower vertical plate (1321), a lower side retaining groove (1322), and a locking rod (1323); The lower side groove (1322) has openings on one side and top. The opening on one side of the lower side groove (1322) is located on the outer side wall of the lower vertical plate (1321) and communicates with the hook groove (130) of the lower vertical plate (1321). The locking rod (1323) is slidably inserted into the insertion holes (13221) on both sides of the top opening of the lower side groove (1322) to lock the lower horizontal bolt of the furnace door (100) to be inspected into the lower side groove (1322).

6. The furnace door repair station landing gear according to claim 3, characterized in that, The first distance between the upper horizontal bolt hook plate (131) and the first sub-recess (151), the second distance between the idler roller support plate (12) and the first recess (14), and the third distance between the lower horizontal bolt hook plate (132) and the second sub-recess (152) are the predetermined distances. In the height direction of the landing gear (1), the first distance between the upper horizontal bolt hook plate (131) and the first sub-recess (151), the second distance between the idler roller support plate (12) and the first recess (14), and the third distance between the lower horizontal bolt hook plate (132) and the second sub-recess (152) are all equal.

7. The furnace door repair station landing gear according to any one of claims 2 to 6, characterized in that, When the furnace door (100) to be repaired is placed on the lifting frame of the furnace door repair station, the idler roller plate (12) supports the idler roller (101) of the furnace door (100) to be repaired, the horizontal bolt hook plate (13) supports the horizontal bolt (102) of the furnace door (100) to be repaired, and there is a gap between the top of the furnace door (100) to be repaired and the top frame (111), the gap being greater than the predetermined distance.

8. The furnace door repair station landing gear according to claim 7, characterized in that, The interval is between 75mm and 100mm.

9. A furnace door repair station, characterized in that, include: The furnace door repair station landing gear (1) as described in any one of claims 1 to 8 above; The rotary seat (2) includes a base (21), a rotating platform (22) and a rotating bracket (23). The rotating platform (22) and the base (21) are rotatably connected by a vertical axis (24). The rotating bracket (23) and the rotating platform (22) are rotatably connected by a horizontal axis (25). The rotating bracket (23) is used to fix the bottom of the main frame (11). Lifting equipment (3) is used to lift the top of the main frame (11); Mobile maintenance vehicle (4) is used to support the furnace door (100) to be maintained.

10. The furnace door repair station according to claim 9, characterized in that, The lifting equipment (3) includes: a winch (31) and a fixed pulley (32); The fixed pulley (32) is used to fix it above the rotary seat (2), and the wire rope (311) of the winch (31) is used to pass through the fixed pulley (32) and connect to the top of the main frame (11) to lift or lower the furnace door repair station landing gear (1).

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