A kind of ring cooling machine trolley unloading reset detection device
By designing a detection device for unloading and resetting the trolley of the annular cooler, the problem of jamming during the unloading and resetting stages of the trolley is solved, ensuring the integrity of unloading and the safety of resetting, reducing the risk of equipment failure, and improving the continuity and efficiency of production.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUNAN VALIN XIANGTAN IRON & STEEL CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-06-19
AI Technical Summary
During the unloading and resetting stages, the ring cooler trolley is prone to problems such as jamming and foreign object snagging, which prevent the trolley from returning to a horizontal state, causing tearing, deformation and downtime risks. Existing technologies cannot effectively solve these problems.
Design a material unloading and reset detection device for a ring cooler trolley, including a reset mechanism and a detection mechanism. The device assists in material unloading and reset of the trolley through the cooperation of a crank wheel device, a low-position reset wheel, a high-position reset wheel and a guide mechanism, and performs status detection and interlock protection through proximity switches and a material unloading stop sensor.
It effectively assists in the unloading process, ensuring complete unloading of sinter, improving unloading reliability and stability, avoiding trolley jamming, reducing downtime risk, extending equipment life, and improving production continuity and efficiency.
Smart Images

Figure CN224382165U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of annular cooler technology, specifically an annular cooler trolley unloading and resetting detection device. Background Technology
[0002] During the sintering process, the annular cooler is responsible for uniformly cooling the sintered ore from 600-700 degrees Celsius to below 120 degrees Celsius. After the cooling operation is completed, the annular cooler trolley moves into the unloading area along with the annular frame. Once in the unloading area, the outer crank arm wheels no longer provide the constraint force to maintain the trolley's horizontal position, and the trolley tilts downwards around the main axis to unload the material. After unloading, the outer crank arm wheel device and the trolley move forward. After the crank arm wheels contact the curved rail, the curved rail applies a downward constraint force to the crank arm wheel device, restoring the trolley from a vertical position to a horizontal position, thus initiating a secondary loading, cooling, and unloading cycle for the annular cooler trolley. However, during the operation of the ring cooler trolley, the main shaft of the crank arm wheel seized up, and the trolley was caught on foreign objects. As a result, after the ring cooler trolley entered the unloading area, the trolley could not tilt downwards to complete the unloading. Furthermore, during the reset phase after the trolley was unloaded, foreign objects or iron pieces were not completely unloaded from the edge of the trolley, causing the trolley to jam and unable to return to a horizontal state. This resulted in the trolley crank arm wheel being unable to enter the horizontal section of the curved rail after contacting it, causing the ring cooler trolley to tear and deform, and thus stop the machine.
[0003] Chinese patent CN116465210A discloses a forward-discharging ring cooler with unloading detection function. By changing the tilting structure and tilting direction of the ring cooler trolley, and in conjunction with the ring rail and unloading detection device, the ring cooler trolley can achieve forward operation and forward tilting unloading, solving the problem of poor unloading in the prior art. However, the ring cooler still has a jamming problem during the trolley reset stage, which makes it impossible for the trolley to return to a horizontal state, resulting in the risk of tearing and deformation of the ring cooler trolley. At the same time, it cannot provide interlocking shutdown protection when abnormalities occur during the unloading and reset stages of the ring cooler trolley.
[0004] Therefore, there is an urgent need for a device for detecting the unloading and resetting of the trolley in an annular cooler, which can assist in unloading while resetting, and also provide remote protection against interlocking shutdowns when abnormalities occur during the unloading and resetting stages of the trolley in an annular cooler. Utility Model Content
[0005] The purpose of this utility model is to provide a detection device for unloading and resetting of a ring cooler trolley, so as to solve at least one aspect of the problems and defects mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A detection device for unloading and resetting a ring cooler trolley includes:
[0008] A ring-cooled machine trolley and its control system, wherein a ring-cooled frame is provided on one side of the ring-cooled machine trolley;
[0009] A guide mechanism is provided on the outer platform near the side of the annular cooling frame, and a curved track is provided near the top of the annular cooling frame, the curved track being connected to the outer platform;
[0010] It also includes a reset mechanism and a testing mechanism;
[0011] The reset mechanisms are respectively installed on the annular cooling frame and the ore unloading area support beam near the bottom of the annular cooling frame;
[0012] The detection mechanisms are respectively installed on the guide mechanism and the curved track.
[0013] The annular cooler trolley unloading and resetting detection device according to the present invention has at least the following technical effects:
[0014] This ring cooler trolley unloading and reset detection device, through a reset mechanism, assists the ring cooler trolley in unloading during the unloading phase and in resetting after unloading, preventing situations such as crank wheel spindle seizure or the trolley getting caught on foreign objects during the unloading or reset phases. Simultaneously, the detection mechanism monitors the status of the ring cooler trolley during both the unloading and reset phases, providing interlocking protection in case of malfunctions or abnormalities, ensuring the normal operation of the ring cooler, reducing the risk of downtime due to trolley failure, and improving production continuity and efficiency.
[0015] As a further embodiment of this utility model: the reset mechanism includes a crank arm wheel device disposed on the ring cooling frame, and the crank arm wheel device is connected to the ring cooling machine trolley through the ring cooling frame.
[0016] As a further embodiment of this invention, a crank wheel is provided at the free end of the crank wheel device.
[0017] As a further embodiment of this utility model, the reset mechanism also includes several low-position reset wheels and several high-position reset wheels disposed on the support beam of the unloading area near the bottom of the annular cooling frame.
[0018] As a further embodiment of this utility model: the guiding mechanism includes a guide seat disposed on an external platform, a spring seat disposed at one top end of the guide seat, a guide spring disposed at the top of the spring seat, and a hinge seat disposed at the other top end of the guide seat.
[0019] As a further embodiment of this utility model: the guiding mechanism further includes a guide platform, one end of the bottom of the guide platform is connected to a guide spring, and the other end of the bottom of the guide platform is connected to a hinge seat.
[0020] The reset mechanism includes a crank wheel device mounted on the ring cooling frame, which is connected to the ring cooling machine trolley via the ring cooling frame; the free end of the crank wheel device is equipped with a crank wheel; the reset mechanism also includes several low-position reset wheels and several high-position reset wheels mounted on the support beam of the unloading area near the bottom of the ring cooling frame; the guide mechanism includes a guide seat mounted on the outer platform, a spring seat mounted at one top end of the guide seat, a guide spring mounted at the top of the spring seat, and a hinge seat mounted at the other top end of the guide seat; one bottom end of the guide platform is connected to the guide spring, and the other bottom end of the guide platform is connected to the hinge seat.
[0021] In operation, when unloading assistance is required, the annular cooling trolley enters the unloading area. The crank wheel device of the reset mechanism disengages from the inlet horizontal track and enters the curved track. The annular cooling trolley and the sinter on it unload due to their own gravity. As the sinter in the annular cooling trolley gradually decreases and can no longer be unloaded by its own gravity, the crank wheel at one end of the crank wheel device contacts the guide platform of the guide mechanism. The guide platform is inclined, guiding the crank wheel upwards, thereby driving the annular cooling trolley downwards through the inner shaft of the crank wheel device. The trolley flips over to assist the annular cooler trolley in completing the unloading operation. When reset assistance is required, the annular cooler trolley, having completed unloading, moves forward with the annular frame. At this time, the back of the trolley contacts several low-position reset wheels on the bottom unloading area support beam of the annular cooler frame, raising the annular cooler trolley to a fixed height. Then, the back of the trolley contacts several high-position reset wheels, raising the annular cooler trolley to a horizontal state. At this time, the crank arm wheel device contacts the outlet curved rail, assisting the annular cooler trolley in completing the reset operation after unloading, allowing the annular cooler trolley to continue running in a horizontal state.
[0022] The reset mechanism effectively assists in the unloading of the annular cooler trolley. Utilizing the crank wheel device and guiding mechanism, it provides additional power and guidance for the unloading process, ensuring complete discharge of the sintered ore from the trolley. This prevents sintered ore residue from affecting subsequent production processes, reduces the risk of incomplete unloading due to insufficient weight or other unforeseen circumstances, enhances the reliability and stability of the unloading operation, and improves unloading efficiency. Furthermore, the reset mechanism effectively assists in the resetting of the annular cooler trolley. By sequentially contacting the low-position reset wheel and the high-position reset wheel, the trolley can be lifted to a horizontal position in stages and steps, allowing it to enter the horizontal rail area of the curved track for continued operation. This prevents the trolley from being unable to return to a horizontal position due to jamming, effectively improving the safety and reliability of the trolley resetting.
[0023] As a further embodiment of this utility model: the detection mechanism includes a proximity switch mounted on the guide seat, and the proximity switch is respectively equipped with a material unloading alarm sensor and a material unloading stop sensor from top to bottom, and a gap is provided between the proximity switch and the guide seat.
[0024] As a further improvement of this utility model, the gap between the proximity switch and the guide platform is 5mm-10mm.
[0025] The detection mechanism includes proximity switches mounted on the guide seat. From top to bottom, the proximity switches are equipped with a discharge alarm sensor and a discharge stop sensor. A gap of 5mm-10mm is maintained between the proximity switches and the guide table. The guide table utilizes guide springs to provide the necessary reverse support force for the crank arm wheel assembly, ensuring a flexible operating mode throughout the unloading process. When the support force provided by the guide springs is insufficient to overcome the resistance during the unloading and overturning of the ring cooler trolley, the guide springs are compressed, causing the guide table to move downwards. When the guide table descends to the position of the discharge alarm sensor on the proximity switch, the discharge alarm sensor sends the downward pressure of the guide table to the control system and issues an alarm. As the guide table continues to descend to the position of the discharge stop sensor on the proximity switch, the discharge stop sensor sends the downward pressure of the guide table to the control system and issues a stop command. This prevents the equipment from continuing to operate under abnormal conditions and provides interlocking protection in case of malfunction or abnormality in the ring cooler trolley, thereby reducing wear and damage, extending the equipment's service life, lowering maintenance costs and replacement frequency, and improving safety during unloading.
[0026] As a further embodiment of this utility model: one end of the curved rail is provided with a horizontal rail inlet, and the other end is provided with a horizontal rail outlet.
[0027] As a further embodiment of this invention, the detection mechanism also includes a pressing detection device disposed on the inner side of the horizontal rail exit section.
[0028] By setting a horizontal rail inlet at one end of the curved rail and a horizontal rail outlet at the other end, the detection mechanism also includes a pressing detection device set on the inner side of the horizontal rail outlet section. Normally, the annular cooler trolley can be raised to a horizontal state through several low-position reset wheels and high-position reset wheels. However, when the trolley is stuck at the side and is still in a tilted state, the crank arm wheel device is in a large-angle upward state. Through the pressing detection device on the inner side of the horizontal rail outlet section of the curved rail, the crank arm wheel at the free end of the crank arm wheel device will contact the pressing detection device. The pressing detection device transmits a signal to the control system for signal judgment and early warning. It can accurately detect the tilting fault of the annular cooler trolley that has not been properly reset, thereby timely detection of abnormalities, avoiding the accumulation and expansion of potential risks, and ensuring the overall operational safety of the annular cooler. Attached Figure Description
[0029] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0030] Figure 1 A schematic diagram of the non-working structure of a ring cooler trolley unloading and reset detection device;
[0031] Figure 2 A schematic diagram of the working state structure of a ring cooler trolley unloading and reset detection device;
[0032] Figure 3 for Figure 1 A magnified view of part A.
[0033] Figure label:
[0034] 1. Ring cooler trolley; 2. Ring cooler frame; 3. Guide mechanism; 31. Guide seat; 32. Spring seat; 33. Guide spring; 34. Hinge seat; 35. Guide platform; 4. Curved rail; 41. Horizontal rail inlet; 42. Horizontal rail outlet; 5. Crank arm wheel device; 51. Crank arm wheel; 6. Low position reset wheel; 7. High position reset wheel; 8. Proximity switch; 81. Unloading alarm sensor; 82. Unloading stop sensor; 9. Press detection device. Detailed Implementation
[0035] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0036] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.
[0037] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0038] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining the present utility model and are not intended to limit the present utility model; that is, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The components of the embodiments of the present utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0040] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0041] like Figure 1 and Figure 2 The present invention, as shown in this embodiment, discloses a device for unloading and resetting a ring cooler trolley, comprising: a ring cooler trolley 1 and a control system; a ring cooler frame 2 is provided on one side of the ring cooler trolley 1; a guide mechanism 3 is provided on an external platform near the ring cooler frame 2; a curved rail 4 is provided near the top of the ring cooler frame 2 and connected to the external platform; a resetting mechanism and a detection mechanism are also included; the resetting mechanism is respectively provided on the ring cooler frame 2 and on the unloading area support beam near the bottom of the ring cooler frame 2; the detection mechanism is respectively provided on the guide mechanism 3 and the curved rail 4.
[0042] Specifically, the unloading and resetting detection device for the annular cooler trolley, through a resetting mechanism, can assist the annular cooler trolley 1 in unloading during the unloading phase and in resetting after unloading, thus preventing situations such as the crank arm wheel spindle seizing or the trolley being caught on foreign objects during the unloading or resetting phases. Simultaneously, the detection mechanism can monitor the status of the annular cooler trolley 1 during the unloading and resetting phases, and provide interlocking protection in case of malfunctions or abnormalities, ensuring the normal operation of the annular cooler, reducing the risk of downtime due to malfunctions, and improving production continuity and efficiency.
[0043] like Figure 1-3As shown, the reset mechanism includes a crank wheel device 5 mounted on the annular cooling frame 2, which is connected to the annular cooling machine trolley 1 via the annular cooling frame 2; the free end of the crank wheel device 5 is provided with a crank wheel 51; the reset mechanism also includes several low-position reset wheels 6 and several high-position reset wheels 7 mounted on the support beam of the unloading area near the bottom of the annular cooling frame 2; the guide mechanism 3 includes a guide seat 31 mounted on the outer platform, a spring seat 32 mounted on one top end of the guide seat 31, a guide spring 33 mounted on the top of the spring seat 32, and a hinge seat 34 mounted on the other top end of the guide seat 31; the guide mechanism 3 also includes a guide platform 35, one bottom end of the guide platform 35 is connected to the guide spring 33, and the other bottom end of the guide platform 35 is connected to the hinge seat 34.
[0044] In use, when unloading assistance is required, the annular cooler trolley 1 enters the unloading area, and the crank wheel device 5 of the reset mechanism disengages from the inlet horizontal track and enters the curved track 4. The annular cooler trolley 1 and the sinter on it unload due to their own gravity. When the sinter in the annular cooler trolley 1 gradually decreases and can no longer be unloaded by its own gravity, the crank wheel 51 at one end of the crank wheel device 5 contacts the guide platform 35 of the guide mechanism 3. The guide platform 35 is inclined, guiding the crank wheel 51 to rise, thereby driving the annular cooler through the inner shaft of the crank wheel device 5. When the trolley 1 tilts down, it assists the annular cooler trolley 1 in completing the unloading operation. When reset assistance is required, the annular cooler trolley 1, having completed unloading, moves forward with the annular frame 2. At this time, the back of the trolley contacts several low-position reset wheels 6 on the bottom unloading area support beam of the annular frame 2, raising the annular cooler trolley 1 to a fixed height. Then, the back of the trolley contacts several high-position reset wheels 7, raising the annular cooler trolley 1 to a horizontal state. At this time, the crank arm wheel device 5 contacts the outlet curved rail, assisting the annular cooler trolley 1 in completing the reset operation after unloading, allowing the annular cooler trolley 1 to continue running in a horizontal state.
[0045] Specifically, the reset mechanism effectively assists in the unloading of the annular cooler trolley 1. Utilizing the crank wheel device 5 and the guide mechanism 3, it provides additional power and guidance for the unloading process, ensuring complete unloading of the sintered ore within the annular cooler trolley 1. This prevents residual sintered ore from affecting subsequent production processes, reduces the risk of incomplete unloading due to insufficient weight or other unforeseen circumstances, enhances the reliability and stability of the unloading operation, and improves unloading efficiency. Furthermore, the reset mechanism effectively assists in the resetting of the annular cooler trolley 1. By sequentially contacting the low-position reset wheel 6 and the high-position reset wheel 7, the annular cooler trolley 1 can be lifted to a horizontal state in stages and steps, allowing it to enter the horizontal rail area of the curved rail 4 in a horizontal position for continued operation. This prevents the annular cooler trolley 1 from being unable to return to a horizontal state due to jamming, effectively improving the safety and reliability of the trolley resetting.
[0046] like Figure 3As shown, the detection mechanism includes a proximity switch 8 mounted on the guide seat 31. From top to bottom, the proximity switch 8 is equipped with a discharge alarm sensor 81 and a discharge stop sensor 82. There is a gap between the proximity switch 8 and the guide seat; the gap between the proximity switch 8 and the guide seat is 5mm-10mm.
[0047] Specifically, the detection mechanism includes a proximity switch 8 mounted on the guide seat 31. From top to bottom, the proximity switch 8 is equipped with a discharge alarm sensor 81 and a discharge stop sensor 82. A gap of 5mm-10mm is provided between the proximity switch 8 and the guide table 35. The guide table 35 utilizes a guide spring 33 to provide the necessary reverse support force for the crank arm wheel device 5 to lift, ensuring that the entire trolley discharge process operates in a flexible mode. When the support force provided by the guide spring 33 is insufficient to overcome the resistance during the discharge and tilting of the annular cooler trolley 1, the guide spring 33 is compressed, causing the guide table 35 to tilt downwards. When the guide table 35 descends to the position of the unloading alarm sensor 81 on the proximity switch 8, the unloading alarm sensor 81 sends the downward pressure of the guide table 35 to the control system and issues an alarm. When the guide table 35 continues to descend to the position of the unloading stop sensor 82 on the proximity switch 8, the unloading stop sensor 82 sends the downward pressure of the guide table 35 to the control system and issues a stop command. This prevents the equipment from continuing to operate under abnormal conditions and provides interlock protection when the ring cooler trolley malfunctions or malfunctions. This reduces wear and damage to the equipment, extends its service life, lowers maintenance costs and replacement frequency, and improves safety during unloading.
[0048] like Figure 1 and Figure 2 As shown, one end of the curved track 4 is provided with a horizontal rail inlet 41, and the other end is provided with a horizontal rail outlet 42; the detection mechanism also includes a pressing detection device 9 provided on the inner side of the track section at the horizontal rail outlet 42.
[0049] Specifically, a horizontal rail inlet 41 is set at one end of the curved rail 4, and a horizontal rail outlet 42 is set at the other end. The detection mechanism also includes a pressing detection device 9 set on the inner side of the horizontal rail outlet 42 section of the rail. Normally, the annular cooler trolley 1 can be raised to a horizontal state through several low-position reset wheels 6 and high-position reset wheels 7. However, when the side of the trolley is blocked and it is still in a tilted state, the crank arm wheel device 5 is in a large-angle upward state. Through the pressing detection device 9 on the inner side of the horizontal rail outlet 41 section of the curved rail 4, the crank arm wheel 51 at the free end of the crank arm wheel device 5 will contact the pressing detection device 9. The pressing detection device 9 transmits a signal to the control system for signal judgment and early warning. It can accurately detect the tilting fault of the annular cooler trolley 1 that has not been properly reset, so as to detect abnormalities in time, avoid the accumulation and expansion of potential risks, and ensure the overall safe operation of the annular cooler.
[0050] The above description is merely an example and illustration of the structure of this utility model. Those skilled in the art can make various modifications or additions to the specific embodiments described or use similar methods to replace them, as long as they do not deviate from the structure of the utility model or exceed the scope defined in the claims, they should all fall within the protection scope of this utility model.
Claims
1. A detection device for unloading and resetting material on a ring cooler trolley, characterized in that, include: A ring-cooled machine trolley (1) and a control system, wherein a ring-cooled frame (2) is provided on one side of the ring-cooled machine trolley (1). A guide mechanism (3) is provided on the outer platform near the side of the ring cooling frame (2), and a curved rail (4) is provided near the top of the ring cooling frame (2), and the curved rail (4) is connected to the outer platform; It also includes a reset mechanism and a testing mechanism; The reset mechanisms are respectively installed on the annular cooling frame (2) and the ore unloading area support beam near the bottom of the annular cooling frame (2); The detection mechanisms are respectively installed on the guide mechanism (3) and the curved track (4).
2. The annular cooler trolley unloading and resetting detection device according to claim 1, characterized in that, The reset mechanism includes a crank wheel device (5) mounted on the ring cooling frame (2), and the crank wheel device (5) is connected to the ring cooling machine trolley (1) through the ring cooling frame (2).
3. The annular cooler trolley unloading and resetting detection device according to claim 2, characterized in that, The free end of the crank wheel device (5) is provided with a crank wheel (51).
4. The annular cooler trolley unloading and resetting detection device according to claim 3, characterized in that, The reset mechanism also includes several low-position reset wheels (6) and several high-position reset wheels (7) set on the support beam of the unloading area near the bottom of the annular cooling frame (2).
5. The annular cooler trolley unloading and resetting detection device according to claim 4, characterized in that, The guiding mechanism (3) includes a guide seat (31) set on an external platform. A spring seat (32) is provided at one end of the top of the guide seat (31). A guide spring (33) is provided at the top of the spring seat (32). A hinge seat (34) is provided at the other end of the top of the guide seat (31).
6. The annular cooler trolley unloading and resetting detection device according to claim 5, characterized in that, The guide mechanism (3) also includes a guide platform (35), one end of the bottom of the guide platform (35) is connected to the guide spring (33), and the other end of the bottom of the guide platform (35) is connected to the hinge seat (34).
7. The annular cooler trolley unloading and resetting detection device according to claim 6, characterized in that, The detection mechanism includes a proximity switch (8) mounted on a guide seat (31). The proximity switch (8) is equipped with a discharge alarm sensor (81) and a discharge stop sensor (82) from top to bottom. A gap is provided between the proximity switch (8) and the guide seat.
8. The annular cooler trolley unloading and resetting detection device according to claim 7, characterized in that, The gap between the proximity switch (8) and the guide table is 5mm-10mm.
9. The annular cooler trolley unloading and resetting detection device according to claim 8, characterized in that, The curved track (4) has a horizontal rail inlet (41) at one end and a horizontal rail outlet (42) at the other end.
10. The annular cooler trolley unloading and resetting detection device according to claim 9, characterized in that, The detection mechanism also includes a pressing detection device (9) installed on the inner side of the track section at the horizontal rail exit (42).