CN111121469A - Cold quick-witted wheel of ring drops detection device - Google Patents
Cold quick-witted wheel of ring drops detection device Download PDFInfo
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- CN111121469A CN111121469A CN201911365088.6A CN201911365088A CN111121469A CN 111121469 A CN111121469 A CN 111121469A CN 201911365088 A CN201911365088 A CN 201911365088A CN 111121469 A CN111121469 A CN 111121469A
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- track
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- supporting frame
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D15/00—Handling or treating discharged material; Supports or receiving chambers therefor
- F27D15/02—Cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D21/00—Arrangements of monitoring devices; Arrangements of safety devices
- F27D21/04—Arrangements of indicators or alarms
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- General Induction Heating (AREA)
Abstract
The invention provides a wheel drop detection device of a circular cooler, belonging to the technical field of sintering production equipment in the metallurgical industry. The supporting frame is used for being installed on one side of the track, and the upper part of the supporting frame is provided with the inductive switch; the middle part of the pressure rod is rotatably connected with the support frame, one end of the pressure rod, which is close to the track, is positioned below the wheels, an induction plate is arranged on the pressure rod, and the induction switch is controlled to be opened and closed by inducing the position of the induction plate. The invention provides a wheel falling detection device of a ring cooling machine, which can effectively judge the falling of a wheel 1 of the ring cooling machine. The trouble shooting time is shortened when the trouble occurs, the trouble point can be directly found, the trouble shooting and handling time is shortened, the trouble handling time is shortened, the situation that the circular cooler is blocked and stopped due to non-timely finding is avoided, and the normal production rhythm of the sintering machine is ensured.
Description
Technical Field
The invention belongs to the technical field of sintering production equipment in the metallurgical industry, and particularly relates to a wheel falling detection device of a circular cooler.
Background
In the metallurgical sintering production process, the mixed materials are uniformly mixed and granulated through a mixing barrel, sintering is carried out through a sintering machine, and the circular cooler is responsible for cooling sintered finished ores.
The wheel falling accident of the ring cooling machine can occur in the daily operation and maintenance process, namely the wheel of the ring cooling machine falls off to one side of the track, if the wheel is found out untimely, the passive clamping of the ring cooling machine can be caused to stop, the time of the emergency repair accident after the clamping of the ring cooling machine stops is longer, and the production rhythm of the sintering machine is seriously influenced.
Disclosure of Invention
The invention aims to provide a wheel drop detection device of a ring cooling machine, and aims to solve the problem that the production rhythm of a sintering machine is seriously influenced because the time of an emergency repair accident is long after the ring cooling machine is blocked and stopped.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a cold quick-witted wheel of ring drops detection device for install in the track one side of the cold quick-witted wheel of ring, include:
the supporting frame is used for being installed on one side of the track, and an inductive switch is installed on the upper portion of the supporting frame;
the middle part of the pressure lever is rotatably connected with the support frame, one end of the pressure lever, which is close to the track, is positioned below the wheel, an induction plate is arranged on the pressure lever, and the induction switch controls the opening and closing by inducing the position of the induction plate;
when the wheel moves on the track, one end, close to the track, of the pressure lever is in a free state, the induction plate is located in an induction area of the induction switch, and the induction switch is turned off; when the wheel is followed drop on the track, press the depression bar is close to when orbital one end, the depression bar drives the tablet rotates, the tablet leaves inductive switch's induction zone, inductive switch opens.
As another embodiment of this application, it is equipped with the connecting axle to rotate on the support frame, the depression bar set firmly in on the connecting axle, just the axial of depression bar with the axial vertical of connecting axle.
As another embodiment of this application, the connecting axle has been set firmly on the support frame, the depression bar rotates to be located on the connecting axle, just the axial of depression bar with the axial vertical of connecting axle.
As another embodiment of the application, one side of the support frame, which is close to the track, is provided with a limiting component, and the limiting component is used for limiting one end of the pressure lever, which is close to the track, to move upwards.
As another embodiment of the present application, the stopper member has a degree of freedom in a height direction of the support frame.
As another embodiment of the present application, the stopper member includes:
the connecting frame is fixedly arranged on one side of the supporting frame close to the track;
and the adjusting screw rod is rotatably arranged on the connecting frame along the height direction of the supporting frame, and the lower end of the adjusting screw rod is abutted against the pressing rod and used for limiting one end of the pressing rod, which is close to the track, to move upwards.
As another embodiment of this application, the depression bar keep away from orbital one end is equipped with the balancing weight, the balancing weight is used for with the depression bar supports and leans on spacing part.
As another embodiment of the present application, the inductive switch is mounted on the upper portion of the support frame through a nut.
As another embodiment of this application, inductive switch is proximity switch, the tablet is the metal pick-up plate, the metal pick-up plate is through getting into or leaving proximity switch's induction zone for control proximity switch opens and close.
As another embodiment of the present application, it is characterized in that an audible and visual alarm is connected to the proximity switch.
The invention provides a wheel falling detection device of a circular cooler, which has the beneficial effects that: compared with the prior art, the wheel drop detection device of the ring cooling machine has the advantages that when the wheel of the ring cooling machine normally moves on the track, one end, close to the track, of the pressure rod is in a free state and is free from external force, the sensing plate is located in the sensing area of the sensing switch at the moment, and the sensing switch is in a closed state; when the wheel drops from the track, press when the depression bar is close to orbital one end, the depression bar drives the tablet and rotates, and the tablet leaves inductive switch's induction zone, and inductive switch opens, and the suggestion wheel drops from the track. The device can effectively judge the falling of the wheel 1 of the circular cooler. The trouble shooting time is shortened when the trouble occurs, the trouble point can be directly found, the trouble shooting and handling time is shortened, the trouble handling time is shortened, the situation that the circular cooler is blocked and stopped due to non-timely finding is avoided, and the normal production rhythm of the sintering machine is ensured.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a front view of a wheel drop detection device of a circular cooler according to an embodiment of the present invention;
fig. 2 is a first cross sectional view of a wheel drop detection device of a circular cooler according to an embodiment of the present invention;
fig. 3 is a second cross sectional view of the wheel drop detection device of the ring cooling machine according to the embodiment of the present invention;
fig. 4 is a side view of a wheel drop detection device of a circular cooler according to an embodiment of the present invention;
fig. 5 is a third cross sectional view of the wheel drop detection device of the ring cooling machine according to the embodiment of the present invention.
In the figure: 1. a wheel; 2. a track; 3. a support frame; 4. an inductive switch; 5. a pressure lever; 6. an induction plate; 7. a connecting shaft; 8. a connecting frame; 9. adjusting the screw rod; 10. a balancing weight; 11. a nut; 12. briquetting; 13. a base plate.
Detailed Description
In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1 to 5, a wheel drop detection device of a ring cooling machine according to the present invention will now be described. The utility model provides a cold quick-witted wheel of ring detection device that drops for install in 2 one sides of track of cold quick-witted wheel 1 of ring, includes support frame 3, depression bar 5, inductive switch 4 and tablet 6.
The support frame 3 is used for being installed on one side of the track 2, and the upper part of the support frame 3 is provided with an inductive switch 4; the middle part of the pressure lever 5 is rotatably connected with the support frame 3, one end of the pressure lever 5, which is close to the track 2, is positioned below the wheel 1, the pressure lever 5 is provided with an induction plate 6, and the induction switch 4 is controlled to be opened and closed by inducing the position of the induction plate 6.
When the wheel 1 moves on the track 2, one end of the pressure lever 5 close to the track 2 is in a free state, the induction plate 6 is positioned in an induction area of the induction switch 4, and the induction switch 4 is closed; when the wheel 1 falls off from the track 2 and presses one end of the pressure rod 5 close to the track 2, the pressure rod 5 drives the induction plate 6 to rotate, the induction plate 6 leaves an induction area of the induction switch 4, and the induction switch 4 is turned on.
Use this device, install in track 2 one side, also can all install this device in track 2 both sides for detect the cold quick-witted wheel 1 behavior of ring on the track 2, in case the cold quick-witted wheel 1 of ring appears from the condition that drops on track 2, wheel 1 drops to which side, and the inductive switch 4 of which side opens, and suggestion wheel 1 appears unusually, makes things convenient for the timely discovery of operation personnel.
Compared with the prior art, when the wheel 1 of the ring cooling machine normally moves on the track 2, one end of the pressure lever 5 close to the track 2 is in a free state and is free from external force, the induction plate 6 is positioned in an induction area of the induction switch 4 at the moment, and the induction switch 4 is in a closed state; when the wheel 1 falls off from the track 2, and the pressure rod 5 drives the induction plate 6 to rotate when pressing at one end of the pressure rod 5 close to the track 2, the induction plate 6 leaves an induction area of the induction switch 4, and the induction switch 4 is turned on to prompt the wheel 1 to fall off from the track 2. The device can effectively judge the falling of the wheel 1 of the circular cooler. The trouble shooting time is shortened when the trouble occurs, the trouble point can be directly found, the trouble shooting and handling time is shortened, the trouble handling time is shortened, the situation that the circular cooler is blocked and stopped due to non-timely finding is avoided, and the normal production rhythm of the sintering machine is ensured.
As a specific embodiment of the wheel drop detection device for a circular cooler provided by the present invention, please refer to fig. 2, a support frame 3 is rotatably provided with a connecting shaft 7, a pressure lever 5 is fixedly disposed on the connecting shaft 7, and an axial direction of the pressure lever 5 is perpendicular to an axial direction of the connecting shaft 7. In this embodiment, the connecting shaft 7 is transversely arranged inside the support frame 3, the connecting shaft 7 can rotate through a bearing arranged in the support frame 3, the pressing rod 5 is welded and fixed on the connecting rod, and the axial direction of the pressing rod 5 is perpendicular to the axial direction of the connecting shaft 7. When one end of the pressure rod 5 is pressed, the connecting shaft 7 drives the pressure rod 5 to rotate through the bearing, so that the position of the induction plate 6 on the pressure rod 5 moves, and the induction switch 4 is opened.
As a specific embodiment of the wheel drop detection device for a circular cooler provided by the present invention, please refer to fig. 3, a connecting shaft 7 is fixedly disposed on the supporting frame 3, the pressing rod 5 is rotatably disposed on the connecting shaft 7, and an axial direction of the pressing rod 5 is perpendicular to an axial direction of the connecting shaft 7. In this embodiment, the connecting shaft 7 is transversely arranged inside the supporting frame 3, two ends of the connecting shaft 7 are fixed in the supporting frame 3, the axial direction of the pressure lever 5 is perpendicular to the axial direction of the connecting shaft 7, the middle of the pressure lever 5 is provided with the connecting ring, the connecting ring is sleeved on the connecting shaft 7, the inner wall of the connecting ring is provided with the rolling ball, the connecting ring can rotate relative to the connecting shaft 7, when one end of the pressure lever 5 is pressed, the pressure lever 5 rotates along the connecting shaft 7 through the connecting ring, so that the position of the sensing plate 6 on the pressure lever 5 is moved.
Referring to fig. 1 to 5, as a specific embodiment of the wheel drop detection device of the ring cooling machine, referring to fig. 1 to 5, a limiting component is disposed on one side of the support frame 3 close to the rail 2, and the limiting component is used for limiting one end of the pressing rod 5 close to the rail 2 to move upwards. In this embodiment, the spacing part top leans on the upper portion of depression bar 5, prescribes a limit to depression bar 5 and is close to the distance that track 2 one end upwards removed, avoids depression bar 5 and the wheel 1 contact of normally moving on track 2, avoids appearing the condition of depression bar 5 wearing and tearing, avoids depression bar 5 to disturb the normal removal of wheel 1 on track 2, leads to the condition that wheel 1 drops.
Referring to fig. 1 to 5, as an embodiment of the apparatus for detecting wheel drop of a circular cooler provided by the present invention, the limiting component has a degree of freedom along the height direction of the supporting frame 3. In this embodiment, the limiting component is used for leaning on the one end of depression bar 5 and can be adjusted along the direction of height of support frame 3 for the distance that depression bar 5 is close to track 2 one end rebound becomes adjustable form, with the track 2 of adaptation co-altitude not, or the wheel 1 that matches different edge profile uses, makes the application ability of this device wider.
Referring to fig. 1 to 5, as an embodiment of the apparatus for detecting wheel drop of a ring cooling machine provided by the present invention, the limiting component includes a connecting frame 8 and an adjusting screw 9.
The connecting frame 8 is fixedly arranged on one side of the support frame 3 close to the track 2; the adjusting screw rod 9 is rotatably arranged on the connecting frame 8 along the height direction of the support frame 3, and the lower end of the adjusting screw rod 9 is abutted against the pressure rod 5 and used for limiting one end of the pressure rod 5, which is close to the track 2, to move upwards. In this embodiment, link 8 is the U-shaped frame, two free ends are connected in the both sides of support frame 3 through the mode of welding or bolt, the screw hole that matches with accommodate the lead screw 9 is vertically seted up at the middle part of U-shaped frame blind end, screw hole top-down runs through the setting, accommodate the lead screw 9 rotates the middle part of locating link 8 through the screw hole, accommodate the lead screw 9 lower extreme supports and leans on depression bar 5, a distance for prescribing a limit to the depression bar 5 and be close to the one end rebound of track 2, through rotating accommodate the lead screw 9, make the length that the lower part of accommodate the lead screw 9 stretches out change, thereby make the depression bar 5 be close to the distance that 2 one end rebound of track becomes adjustable form, in order to adapt to not track 2 of co-altitude, or match the wheel 1 use of. Optionally, the lower end of the adjusting screw rod 9 is bolted with a pressing block 12, the adjusting screw rod 9 abuts against the pressing rod 5 through the pressing block 12, the pressing block 12 is made of rubber, the adjusting screw rod 9 is prevented from being in rigid contact with the pressing rod 5, the pressing rod 5 and the adjusting screw rod 9 can be protected, and the two are prevented from being damaged.
Referring to fig. 1, 2, 3 and 5, as a specific embodiment of the wheel drop detection device of the ring cooling machine provided by the present invention, a counterweight 10 is disposed at an end of the pressure lever 5 away from the rail 2, and the counterweight 10 is used for abutting the pressure lever 5 against a limiting component. In this embodiment, the counterweight block 10 is welded or bolted to one end of the pressing rod 5 far away from the rail 2, and under the action of the counterweight block 10, the pressing rod 5 can always abut against the lower end of the adjusting screw 9 and is in a stable state, so that the stable sensing area of the sensing plate 6 on the pressing rod 5, which is located in the sensing switch 4, can be ensured. Under the condition that the wheel 1 is not separated from the track 2, the inductive switch 4 is ensured to be always in a closed state, the reliability of the whole device is ensured, and the condition of false alarm cannot occur. Optionally, the weight of balancing weight 10 is adjustable, and the one end welding or the bolt that track 2 was kept away from to depression bar 5 have the counter weight box, and the counter weight box upper end is open, through adding the balancing weight 10 of different weight in the counter weight box, adjusts the weight of whole counter weight to the demand that the spacing part that adapts to different weight, different length and different positions set up ensures that depression bar 5 can support all the time and lean on the lower extreme at accommodate the lead screw 9, guarantees the reliability of equipment operation.
Referring to fig. 1 to 5, as an embodiment of the apparatus for detecting wheel drop of a ring cooling machine according to the present invention, an inductive switch 4 is mounted on an upper portion of a supporting frame 3 through a nut 11. In this embodiment, the upper portion of the supporting frame 3 is provided with a through hole or a threaded hole in a penetrating manner, and the outer wall of the inductive switch 4 is provided with an external thread matched with the nut 11. When the upper part of the support frame 3 is provided with a through hole, the diameter of the through hole is larger than the outer diameter of the external thread, and the inductive switch 4 penetrates through the through hole and is fixed on the upper part of the support frame 3 through nuts 11 at two ends. When the threaded hole is opened on the upper portion of the support frame 3, the threaded hole is matched with the external thread, the induction switch 4 is fixed on the upper portion of the support frame 3 through the thread, the induction switch 4 can be further fixed by using the nut 11, the stability of the induction switch 4 relative to the support frame 3 is ensured, the reliability of the operation of the equipment is improved, and the phenomenon that the induction switch 4 moves to cause inaccurate detection or false alarm is avoided.
As a specific embodiment of the wheel drop detection device of the circular cooler provided by the invention, the inductive switch 4 is a proximity switch, the inductive plate 6 is a metal detection plate, and the metal detection plate is used for controlling the opening and closing of the proximity switch by entering or leaving an inductive area of the proximity switch. In the embodiment, the proximity switch is a position switch which does not need to be in direct mechanical contact with a moving part, when the sensing area of the proximity switch of the metal detection plate is arranged, the switch can send out an electrical command without contact, pressure and spark, the position of the metal detection plate can be accurately reflected, the positioning precision, the operating frequency, the service life, the convenience of installation and adjustment and the applicability to severe environments of the proximity switch are not comparable to those of a common mechanical travel switch, and the proximity switch is particularly suitable for being used in the device.
As a specific embodiment of the wheel drop detection device of the circular cooler provided by the invention, please refer to fig., which is characterized in that the proximity switch is connected with an audible and visual alarm. In this embodiment, the Audible and visual alarm (Audible and visual alarm) is called an Audible and visual alarm number, and is set to meet the special requirements on the alarm loudness and the installation position, and can simultaneously send out two kinds of alarm signals, i.e., an Audible alarm signal and a visual alarm signal. The audible and visual alarm consists of a controller and an alarm control host, wherein the controller is electrically connected with the inductive switch 4, and the audible and visual alarm is controlled to emit two alarm signals by starting the inductive switch 4. Reminding the operator of the slipping condition of the wheel 1 of the circular cooler and processing in time.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a cold quick-witted wheel of ring detection device that drops for install in the track one side of the cold quick-witted wheel of ring, its characterized in that includes:
the supporting frame is used for being installed on one side of the track, and an inductive switch is installed on the upper portion of the supporting frame;
the middle part of the pressure lever is rotatably connected with the support frame, one end of the pressure lever, which is close to the track, is positioned below the wheel, an induction plate is arranged on the pressure lever, and the induction switch controls the opening and closing by inducing the position of the induction plate;
when the wheel moves on the track, one end, close to the track, of the pressure lever is in a free state, the induction plate is located in an induction area of the induction switch, and the induction switch is turned off; when the wheel is followed drop on the track, press the depression bar is close to when orbital one end, the depression bar drives the tablet rotates, the tablet leaves inductive switch's induction zone, inductive switch opens.
2. The apparatus for detecting wheel drop of circular cooler according to claim 1, wherein the supporting frame is rotatably provided with a connecting shaft, the pressing rod is fixedly arranged on the connecting shaft, and the axial direction of the pressing rod is perpendicular to the axial direction of the connecting shaft.
3. The apparatus for detecting wheel drop of circular cooler according to claim 1, wherein the supporting frame is fixedly provided with a connecting shaft, the pressing rod is rotatably disposed on the connecting shaft, and the axial direction of the pressing rod is perpendicular to the axial direction of the connecting shaft.
4. The apparatus for detecting wheel drop of a circular cooler according to any one of claims 1 to 3, wherein a limiting component is provided on a side of the supporting frame close to the rail, and the limiting component is used for limiting an end of the pressing rod close to the rail to move upwards.
5. The apparatus for detecting wheel drop of circular cooler according to claim 4, wherein said position-limiting component has a degree of freedom along the height direction of said supporting frame.
6. The apparatus for detecting wheel drop of circular cooler according to claim 5, wherein said limiting member comprises:
the connecting frame is fixedly arranged on one side of the supporting frame close to the track;
and the adjusting screw rod is rotatably arranged on the connecting frame along the height direction of the supporting frame, and the lower end of the adjusting screw rod is abutted against the pressing rod and used for limiting one end of the pressing rod, which is close to the track, to move upwards.
7. The apparatus for detecting wheel drop of circular cooler according to claim 4, wherein a weight block is disposed at an end of the pressure lever away from the rail, and the weight block is used for abutting the pressure lever against the position-limiting member.
8. The apparatus for detecting wheel drop of circular cooler according to any of claims 1-3, characterized in that the inductive switch is mounted on the upper part of the supporting frame by a nut.
9. The apparatus for detecting wheel drop of circular cooler according to any of claims 1-3, characterized in that the inductive switch is a proximity switch, the inductive plate is a metal detection plate, and the metal detection plate is used for controlling the opening and closing of the proximity switch by entering or leaving the inductive area of the proximity switch.
10. The apparatus for detecting wheel drop of circular cooler according to claim 9, characterized in that the proximity switch is connected with an audible and visual alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911365088.6A CN111121469A (en) | 2019-12-26 | 2019-12-26 | Cold quick-witted wheel of ring drops detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911365088.6A CN111121469A (en) | 2019-12-26 | 2019-12-26 | Cold quick-witted wheel of ring drops detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111121469A true CN111121469A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911365088.6A Pending CN111121469A (en) | 2019-12-26 | 2019-12-26 | Cold quick-witted wheel of ring drops detection device |
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| Country | Link |
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| CN (1) | CN111121469A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965244U (en) * | 2010-12-15 | 2011-09-07 | 武汉钢铁(集团)公司 | Online detector for bogie wheels of circular cooler |
| CN202747792U (en) * | 2012-09-20 | 2013-02-20 | 重庆钢铁(集团)有限责任公司 | Track-travelling fault detection device of sintering annular cooler |
| CN202853376U (en) * | 2012-08-17 | 2013-04-03 | 济钢集团有限公司 | Automatic detection device for trolley wheels |
| CN203720376U (en) * | 2014-01-24 | 2014-07-16 | 宁波钢铁有限公司 | Annular cooler trolley wheel dropping detection device |
| CN207407690U (en) * | 2017-10-10 | 2018-05-25 | 中天钢铁集团有限公司 | Wheel of sintering trolley comes off early warning detection device |
-
2019
- 2019-12-26 CN CN201911365088.6A patent/CN111121469A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201965244U (en) * | 2010-12-15 | 2011-09-07 | 武汉钢铁(集团)公司 | Online detector for bogie wheels of circular cooler |
| CN202853376U (en) * | 2012-08-17 | 2013-04-03 | 济钢集团有限公司 | Automatic detection device for trolley wheels |
| CN202747792U (en) * | 2012-09-20 | 2013-02-20 | 重庆钢铁(集团)有限责任公司 | Track-travelling fault detection device of sintering annular cooler |
| CN203720376U (en) * | 2014-01-24 | 2014-07-16 | 宁波钢铁有限公司 | Annular cooler trolley wheel dropping detection device |
| CN207407690U (en) * | 2017-10-10 | 2018-05-25 | 中天钢铁集团有限公司 | Wheel of sintering trolley comes off early warning detection device |
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Application publication date: 20200508 |