Adjustable anti-tip door access device
By installing an adjustment device on the outside of the guide frame, the problem of the gate head tilting was solved, and the guide frame and the gate head were made vertical, which improved the smoothness of coke oven production and the durability of the equipment.
Patent Information
- Application Number
- CN202521372147.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-01
- Publication Date
- 2026-06-26
- Estimated Expiration
- 2035-07-01
AI Technical Summary
The existing coke oven door removal device is prone to tilting during operation, making it difficult for the oven door to fall and affecting the coke oven production efficiency.
An upper adjustment device and a lower adjustment device are installed on the outside of the guide frame, including a limit assembly, an adjustment pad, and an adjustment seat. The vertical state of the guide frame is maintained by adjusting the number and position of the pads to overcome the inertial force during rotation.
This ensures that the guide frame and the gate head remain perpendicular, eliminating the problem of gate head tilting, reducing maintenance load, improving the smoothness of gate operation, and promoting coke oven production.
Smart Images

Figure CN224411676U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of coal chemical industry and coke oven machinery and equipment, and more specifically, to an adjustable anti-tilt door retrieval device. Background Technology
[0002] In the coking process of an ironmaking plant, the coke oven pusher car is mainly used for pushing coke and leveling coal, as well as controlling smoke and dust during the operation. The coke catcher car is used to reverse the red-hot coke and smoke during the pushing operation. Both are designed with a door removal device, which mainly serves to remove and align the coke oven carbonization chamber door before and after pushing coke. In the existing coke oven door removal device, the door removal head is installed inside the guide frame. When removing and aligning the coke oven carbonization chamber door through the door removal head, the guide frame will tilt to the left or right due to the weight of the furnace door and the operation of the rotating arm. This causes the internal door removal head to tilt simultaneously, ultimately making it difficult for the furnace door to fall when aligning with the door. Utility Model Content
[0003] To address the aforementioned technical problem of the door retrieving head easily tilting during operation, an adjustable anti-tilting door retrieving device is provided. After the center of the door retrieving head coincides with the center of the coke pusher, an adjustment device installed at the upper and lower positions on the outer side of the guide frame ensures that the guide frame is always in a specified position. This prevents the door retrieving head from tilting under the weight of the furnace door and the inertia of the rotating arm. The adjustment device overcomes the inertial force during rotation, thus keeping the guide frame and the door retrieving head in a vertical state.
[0004] The technical means adopted in this utility model are as follows:
[0005] An adjustable anti-tilt door retrieval device includes a rotating arm, a door retrieval head, and a guide frame, characterized in that it further includes an upper adjustment device and a lower adjustment device located at the middle and lower parts of the guide frame, respectively.
[0006] The upper and lower adjustment devices have the same structure, each including two limiting components disposed opposite to each other on both sides of the guide frame; each limiting component includes a baffle, an adjusting pad, and an adjusting seat; the adjusting seat is fixedly installed on the rotating arm; the baffle and the adjusting pad are fixedly installed on the adjusting seat; the surface of the baffle facing the guide frame is vertical; at least one adjusting pad is installed between the baffle and the adjusting seat; the distance between the two baffles in the upper and lower adjustment devices is equal to the width of the guide frame.
[0007] Furthermore, the distance between the two baffles in the upper and lower adjustment devices can be adjusted by adjusting the number of adjustment pads between the baffles and the adjustment seat.
[0008] Furthermore, the adjusting seat is welded and fixed to the rotating arm.
[0009] Furthermore, the baffle, the adjusting pad, and the adjusting seat are each provided with a corresponding fixing bolt hole, and the baffle, the adjusting pad, and the adjusting seat are connected to each other by countersunk bolts installed in the fixing bolt holes.
[0010] Furthermore, the baffle and the adjusting pad are square plates with the same length and width.
[0011] Furthermore, a reinforcing rib plate is welded and fixed onto the adjustment seat.
[0012] Compared with the prior art, the present invention has the following advantages:
[0013] The adjustable anti-tilt door retrieval device provided by this utility model can keep the door head and guide frame vertical at all times, eliminating the problem of frequently adjusting the verticality of the door head. It can also reduce the maintenance load and the deformation problem of the door head. The door head does not tilt, making the door alignment smoother and more conducive to the smooth production of the coke oven. Attached Figure Description
[0014] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0015] Figure 1 This is a front structural diagram of the adjustable anti-tilt door retrieval device of this utility model.
[0016] Figure 2 This is a side view of the adjustable anti-tilt door retrieval device of the present invention.
[0017] Figure 3 This is a schematic diagram of the adjustment device described in this utility model.
[0018] Figure 4 This is a top view of the adjustment device described in this utility model.
[0019] Figure 5 This is a side view of the adjustment device described in this utility model.
[0020] Figure 6 This is a schematic diagram of the adjusting pad structure described in this utility model.
[0021] Figure 7 This is a schematic diagram of the baffle structure described in this utility model.
[0022] In the diagram: 1. Rotating arm; 2. Trolley; 3. Door head picker; 4. Upper door pressing cylinder; 5. Guide frame; 6. Upper hook; 7. Lifting cylinder; 8. Fixed seat; 9. Upper adjustment device; 10. Lower door pressing cylinder; 11. Lower hook; 12. Lower adjustment device; 13. Tilting cylinder; 14. Trolley frame; 15. Trolley drive cylinder; 121. Baffle; 122. Fixing bolt hole; 123. Countersunk bolt; 124. Adjusting shim; 125. Adjusting seat; 126. Reinforcing rib. Detailed Implementation
[0023] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this utility model or its application or use. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to the present invention. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0026] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0027] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0028] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0029] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0030] Example 1
[0031] like Figure 1-2 As shown, the existing coke oven door removal device includes a rotating arm 1, a trolley 2, a door removal head 3, an upper door pressing cylinder 4, a guide frame 5, an upper hook 6, a lifting cylinder 7, a fixed seat 8, a lower door pressing cylinder 10, a lower hook 11, a tilting cylinder 13, a trolley frame 14, a trolley drive cylinder 15, and a steering and rotating device; the rotating arm 1 is mounted on the trolley 2 via the trolley frame 14, and the trolley 2 is also equipped with the trolley drive cylinder 15; the door removal head 3 is installed inside the guide frame 5, and the door removal head 3 is connected to the guide frame 5 via the lifting cylinder 7; The guide frame 5 is fixed to the rotating arm 1 by a hinged connection to the fixed base 8 in the middle. The guide frame 5 can be tilted within a certain range by the tilting cylinder 13 located at the bottom and installed on the rotating arm 1. The door-removing head 3 is equipped with, from top to bottom, an upper door-pressing cylinder 4, an upper hook 6, a lower door-pressing cylinder 10, and a lower hook 11 for removing and aligning the coke oven carbonization chamber door. The steering and rotating device is used to drive the rotation of the rotating arm 1. The specific structure of the coke oven door-removing device is prior art and will not be described in detail in this application. In the existing coke oven door-removing device, during the removal and aligning of the coke oven carbonization chamber door through the door-removing head 3, the door-removing head 3 is affected by the weight of the furnace door and the operation of the rotating arm 1 during rotation. The guide frame 5 will tilt to the left or right, causing the internal door-removing head 3 to also deviate, ultimately making it difficult for the furnace door to fall when aligning.
[0032] Based on the existing door retrieval device, such as Figure 1-7 As shown, the adjustable anti-tilt door retrieval device provided by this utility model also includes an upper adjustment device 9 and a lower adjustment device 12 located in the middle and lower parts of the guide frame 5, respectively.
[0033] The upper adjustment device 9 and the lower adjustment device 12 have the same structure, each including two limiting components arranged opposite to each other on both sides of the guide frame 5. The paired limiting components are used to prevent the guide frame 5 from tilting and to keep the guide frame 5 in a vertical state. The limiting components include a baffle 121, an adjusting pad 124, and an adjusting seat 125. The adjusting seat 125 is fixedly installed on the rotating arm 1. The baffle 121 and the adjusting pad 124 are fixedly installed on the adjusting seat 125. The surface of the baffle 121 facing the guide frame 5 and facing the guide frame 5 is vertical. At least one adjusting pad 124 is installed between the baffle 121 and the adjusting seat 125. The distance between the two baffles 121 in the upper adjustment device 9 and the lower adjustment device 12 is equal to the width of the guide frame 5.
[0034] This invention, by distributing the upper adjustment device 9 and the lower adjustment device 12 in the middle and lower part of the guide frame 5 near the fixed seat 8, can prevent the guide frame 5 from tilting and better reduce the impact of inertial force on the fixed seat 8 when opening and closing the furnace door.
[0035] Furthermore, the distance between the two baffles 121 in the upper adjustment device 9 and the lower adjustment device 12 can be adjusted by adjusting the number of adjusting pads 124 between the baffles 121 and the adjustment seat 125. Specifically, it can be adjusted according to the width of the installed guide frame 5, and adjusting pads 124 of different thicknesses can be designed for adjustment.
[0036] Furthermore, the adjustment seat 125 is welded and fixed to the rotating arm 1, or it can be fixed to the rotating arm 1 by means of bolts or other detachable installation methods, taking into account the structural characteristics of the rotating arm 1.
[0037] Furthermore, the baffle 121, the adjusting pad 124, and the adjusting seat 125 are each provided with a corresponding fixing bolt hole 122. The baffle 121, the adjusting pad 124, and the adjusting seat 125 are connected to each other by countersunk bolts 123 installed in the fixing bolt holes 122. The use of countersunk bolts 123 can ensure that the baffle 121 and the guide frame 5 achieve planar contact, reducing wear.
[0038] Furthermore, the baffle 121 and the adjusting pad 124 are square plates with the same length and width.
[0039] Furthermore, a reinforcing rib plate 126 is welded and fixed on the adjusting seat 125 to enhance the structural strength of the adjusting seat 125 and thus resist the inertia brought by the furnace door.
[0040] The adjustable anti-tilt door retrieval device described in this utility model can keep the guide frame 5 in a vertical state by using the upper and lower adjustment devices installed on the outside of the guide frame 5. After the center of the door retrieval coincides with the center of the coke pusher, the guide frame 5 will not tilt when the door retrieval head 3 is subjected to the weight of the furnace door and the inertia of the rotating arm. The upper and lower adjustment devices can overcome the inertial force during rotation, so that the guide frame 5 and the door retrieval head 3 always remain in a vertical state.
[0041] The adjustable anti-tilt door retrieval device described in this utility model, by installing an adjustable adjustment device on the outside of the guide frame outside the door retrieval head, ensures that the door retrieval head and the guide frame always remain perpendicular, eliminating the problem of frequently adjusting the verticality of the door retrieval head. It can also reduce maintenance load and door retrieval head deformation. The door retrieval head does not tilt, making door alignment smoother and more conducive to the smooth operation of coke oven production, and has good promotional value.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. An adjustable anti-tip door access device comprising a rotating arm, a door access head and a guide frame, characterised in that, It also includes an upper adjustment device and a lower adjustment device located at the middle and lower parts of the guide frame, respectively; The upper and lower adjustment devices have the same structure, each including two limiting components disposed opposite to each other on both sides of the guide frame; each limiting component includes a baffle, an adjusting pad, and an adjusting seat; the adjusting seat is fixedly installed on the rotating arm; the baffle and the adjusting pad are fixedly installed on the adjusting seat; the surface of the baffle facing the guide frame is vertical; at least one adjusting pad is installed between the baffle and the adjusting seat; the distance between the two baffles in the upper and lower adjustment devices is equal to the width of the guide frame.
2. The adjustable anti-tip door pull device of claim 1, wherein, The distance between the two baffles in the upper and lower adjustment devices can be adjusted by adjusting the number of adjustment pads between the baffles and the adjustment seat.
3. The adjustable anti-swing door puller device of claim 1, wherein, The adjusting seat is welded and fixed to the rotating arm.
4. The adjustable anti-swing door puller device of claim 1, wherein, The baffle, the adjusting pad, and the adjusting seat are each provided with a corresponding fixing bolt hole, and the baffle, the adjusting pad, and the adjusting seat are connected to each other by countersunk bolts installed in the fixing bolt holes.
5. The adjustable anti-tilt door retrieval device according to claim 1, characterized in that, The baffle and the adjusting pad are square plates with the same length and width.
6. The adjustable anti-tilt door retrieval device according to claim 1, characterized in that, A reinforcing rib plate is welded and fixed to the adjustment seat.