Automatic deviation rectifying device for grate bed of chain grate machine
By designing the automatic deviation correction device of the grate machine grate bed, and automatically adjusting the position of the grate bed using induction and hydraulic systems, the problems of equipment shutdown and increased manual workload caused by the grate bed deviation are solved, and the normal operation and production efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202421454600.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-24
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-06-24
AI Technical Summary
The grate grate is prone to deviating during high temperature operation, resulting in equipment shutdown, increasing manual workload, and the on-site environment is harsh and unsafe.
An automatic deviation correction device for grate beds is designed, including a grate bed deviation sensing mechanism, a hydraulic mechanism and a tail wheel adjustment mechanism. By sensing the direction of grate beds, the position of grate beds is automatically adjusted by using hydraulic cylinders and directional pulley sets to ensure smooth operation.
It realizes automatic correction of grate deviation during the production process, avoid equipment damage and shutdown, reduce manual workload, improve production efficiency, and improve workers' working environment and safety.
Smart Images
Figure CN222881682U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chain grate equipment, in particular to an automatic deviation correcting device for a chain grate grate bed. Background Art
[0002] The chain grate is a non-standard large-scale metallurgical pelletizing equipment. It plays a key role in the chain grate-rotary kiln pelletizing process and is a special equipment that performs special operations under high temperature. The central component of the chain grate is the chain grate bed, which is a special chain-shaped equipment that runs in parallel under high temperature and undertakes the important task of carrying and transporting the pellets.
[0003] According to the requirements of the production process, the chain grate device first enters the drying chamber, where the temperature is usually controlled below 550°C, in order to remove the attached water and crystal water in the green balls. Next, the green balls will be sent to the preheating chamber, where the temperature is raised to 750-1050°C, so that the green balls can have a certain compressive strength. The preheated pellets are sent to the rotary kiln for roasting through the unloading device. In this process, the chain grate device needs to run repeatedly between the low temperature zone and the high temperature zone, playing the role of transporting the balls and bearing huge tensile force. If there is a problem with the chain grate device, the entire chain grate machine may stop running due to the fault.
[0004] At present, there are two main technologies for preventing the grate bed of the chain grate machine from running off: one is to install a gear-shaped sprocket at the tail of the chain grate machine, which meshes with the grate bed chain to prevent the grate bed from running off; the other is to manually guard the grate bed on site. When the grate bed deviates to one side, the counterweight plate of the tensioning shaft at the tail of the chain grate machine is manually removed or added to adjust the grate bed's running off. These methods have been proven to be effective in actual operation. However, since the chain grate machine is a heavy-load, long-cycle, high-temperature equipment, the toothed sprocket and chain will have larger gaps and looseness after long-term operation, which may cause the grate bed to run off. In addition, the temperature at the operation site of the chain grate machine is high and the environment is harsh. Manually guarding the operation of the grate bed is neither safe for workers nor conducive to maintaining the working environment. Moreover, the weight of the counterweight plate is large, and it takes a lot of effort to remove or add the counterweight plate. These factors will affect the normal production and operation of the chain grate machine, increase the workload of manual labor, and pose a serious threat to the work and safety of workers.
[0005] Therefore, it is necessary to research and develop a device that can automatically correct the deviation of the chain grate machine grate bed during the production process to ensure the smooth operation of the grate bed. This can ensure the normal operation of the equipment, reduce the workload of manual labor, improve production efficiency, and also improve the working environment and safety of workers. Utility Model Content
[0006] In view of the problems existing in the operation of existing equipment, the utility model provides an automatic deviation correction device for a chain grate machine grate bed, which can automatically correct the deviated grate bed during production operation, ensure the smooth operation of the grate bed, guarantee normal production, and greatly reduce manual workload.
[0007] The utility model is realized in this way: a chain grate machine grate bed automatic deviation correction device, comprising:
[0008] A grate bed deviation sensing mechanism, the grate bed deviation sensing mechanism comprising grate bed running position sensing devices located on both sides of the chain grate machine grate bed for detecting the running positions of both sides of the chain grate machine grate bed;
[0009] The tail wheel adjustment mechanism comprises a left tail wheel adjustment part and a right tail wheel adjustment part of the same structure; each tail wheel adjustment part comprises an adjustment wheel, an adjustment slide rail and a set of redirection pulley blocks; the adjustment wheel is mounted on the adjustment slide rail; the adjustment slide rail is located outside the tail of the grate bed of the chain grate machine, and a steel wire rope is wound around each set of redirection pulley blocks;
[0010] The hydraulic mechanism comprises two hydraulic stations located at the tail of the chain grate; the two hydraulic stations are respectively connected to a hydraulic cylinder through an oil circuit; wherein:
[0011] One end of the steel wire rope is connected to the bearing of the adjusting wheel, and the other end of the steel wire rope is connected to the hydraulic cylinder; each grate bed operation position sensing device is connected to the AC contactor controlling the working status of the two hydraulic stations through the intermediate relay on this side.
[0012] Preferably, the grate bed operating position sensing device is a photoelectric proximity switch or a Hall type proximity switch.
[0013] Preferably, the grate bed operation position sensing device is fixed to the frames on both sides of the chain grate machine by distributed welding of steel bar support rods.
[0014] Preferably, the 220V power supply is connected to the position sensor via a power adapter.
[0015] Preferably, the two groups of AC contactors are connected in reverse to control the two hydraulic stations located at the tail of the chain grate respectively.
[0016] Preferably, the adjustment slide rail comprises an upper slide rail and a lower slide rail located on the same vertical plane; the upper slide rail and the lower slide rail are parallel to each other.
[0017] The automatic deviation-correcting device for a chain grate machine grate bed proposed by the utility model has the following advantages and effects:
[0018] This utility model patent mainly includes multiple parts such as the grate bed deviation sensing mechanism, hydraulic mechanism and chain grate tail wheel adjustment mechanism. On both sides of the grate bed of the chain grate, flush inductive proximity switches are set. These switches are connected to the 220V power supply through a power adapter, and their output control ends are respectively connected to the intermediate relays on both sides. These intermediate relays are then connected to two sets of AC contactors respectively; these two sets of AC contactors control the two hydraulic station systems located at the tail of the chain grate respectively through reverse wiring. This design allows the hydraulic cylinders of the hydraulic station system to perform reverse lifting and lowering actions at the same time. The hydraulic cylinders of the hydraulic station system are connected to the tail adjustment wheel at the tail of the chain grate through a wire rope and a redirecting pulley group.
[0019] The utility model has a relatively simple structure, and can automatically adjust the deviation of the grate bed of the chain grate machine in a timely manner until the grate bed reaches a balanced state, and its reliability is very high. Such a design effectively avoids equipment damage and accidental shutdown caused by the deviation of the grate bed during the production process, thereby ensuring the normal production operation of the chain grate machine and greatly improving the production efficiency.
[0020] Taking one side of the device as an example, the grate bed deviation sensing mechanism can be used to automatically sense the deviation direction of the grate bed and transmit a control signal. When the grate bed is sensed to be running off, the intermediate relay on the side of the deviation will issue an action command, thereby controlling the two sets of AC contactors on that side to start operating. The hydraulic cylinder at the tail of the chain grate machine will synchronously perform lifting and lowering actions, and control the tail adjustment wheel to make loose and tight actions through the redirection pulley group, ultimately realizing the automatic correction of the grate bed in the production state.
[0021] The utility model patent has a simple structure, is practical and reliable, and can realize automatic correction of the deviation of the grate bed of the chain grate machine even when no one is on duty. This design effectively avoids equipment damage and accidental shutdown caused by the deviation of the grate bed, and ensures the smooth operation of the grate bed. In addition, it can also save inspection and maintenance costs, save labor, and further improve the production efficiency of the chain grate machine. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] Figure 1 It is a structural schematic diagram of a preferred embodiment of the utility model;
[0023] Figure 2 It is a cross-sectional view of the tail structure of the chain grate in the preferred embodiment of the utility model. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments.
[0025] like Figure 1 and Figure 2As shown, a chain grate machine grate bed automatic deviation correction device comprises:
[0026] The grate bed deviation sensing mechanism includes a grate bed running position sensing device 4 located on both sides of the chain grate machine grate bed 1 for detecting the running position of the grate bed on both sides of the chain grate machine; the grate bed running position sensing device 4 can select a photoelectric proximity switch or a Hall type proximity switch. In this embodiment, the photoelectric proximity switch is used as an example for explanation; the grate bed running position sensing device 4 can be fixed on the frames on both sides of the chain grate machine by distributed welding of steel bar support rods, so that the height of the photoelectric proximity switch is equal to the height of the chain grate machine grate bed 1;
[0027] A tail wheel adjustment mechanism, the tail wheel adjustment mechanism comprises a left tail wheel adjustment part and a right tail wheel adjustment part of the same structure; each tail wheel adjustment part comprises an adjustment wheel 13, an adjustment slide rail 14 and a set of redirection pulley blocks 12; the adjustment wheel 13 is mounted on the adjustment slide rail 14; the adjustment slide rail 14 is located outside the tail of the chain grate machine grate bed 1, and a steel wire rope is wound around each set of redirection pulley blocks 12;
[0028] The hydraulic mechanism includes two hydraulic stations located at the tail of the chain grate, the two hydraulic stations are named as the left hydraulic station 10 and the right hydraulic station 9 respectively; the two hydraulic stations are connected to a hydraulic cylinder 11 respectively through an oil circuit; wherein:
[0029] One end of the steel wire rope is connected to the bearing of the adjusting wheel 13, and the other end of the steel wire rope is connected to the hydraulic cylinder; each position sensor 4 is connected to the AC contactor that controls the working status of the two hydraulic stations through the intermediate relay 6 on this side.
[0030] The power supply mode of the grate bed operation position sensing device 4 is: the 220V power supply is connected to the grate bed operation position sensing device 4 through a power adapter
[0031] The two sets of AC contactors are connected in reverse to control the two hydraulic stations located at the tail of the chain grate respectively.
[0032] The adjustment slide rail 14 includes an upper slide rail and a lower slide rail located on the same vertical plane; the upper slide rail and the lower slide rail are parallel to each other.
[0033] The utility model mainly includes: a grate bed deviation sensing mechanism, a hydraulic mechanism, and a tail wheel adjustment mechanism. Taking one side of the device as an example, the grate bed deviation sensing mechanism includes a flush inductive proximity switch, a 220V power supply 2, and a power adapter 3 located on both sides of the chain grate bed 1. The hydraulic mechanism includes an intermediate relay 6 located on both sides of the chain grate bed 1 and connected to the flush inductive proximity switch, two AC contactors that can be controlled by the intermediate relay 6 on each side, the two AC contactors are the left AC contactor 7 and the right AC contactor 8, and two hydraulic stations located at the tail of the chain grate, the two hydraulic stations are the left hydraulic station 9 and the right hydraulic station 10. The tail wheel adjustment mechanism includes an adjustment wheel 13, an adjustment slide rail 14, and a redirection pulley set 12.
[0034] See also Figure 2 Specifically, the flush inductive proximity switches located on both sides of the grate bed 1 of the chain grate are fixed on the frames on both sides of the chain grate through steel support rods 5, connected to a 220V power supply through a power adapter 3, and their output control terminals are connected to an intermediate relay 6.
[0035] Specifically, the intermediate relay on each side is connected to the left AC contactor 7 and the right AC contactor 8 respectively.
[0036] Specifically, the left AC contactor 7 and the right AC contactor 8 are connected in reverse to control the left hydraulic station 9 and the right hydraulic station 10 located at the tail of the chain grate respectively, so that the hydraulic cylinders of the hydraulic station system can perform reverse lifting actions at the same time.
[0037] Specifically, the hydraulic cylinder 11 of the hydraulic station system is connected to the chain grate tail adjustment tail wheel 13 through a steel wire rope and a redirection pulley block 12 .
[0038] The working principle of the automatic deviation correction device of the grate bed of the chain grate machine of the utility model is:
[0039] Taking one side of the device as an example, when the grate bed 1 of the chain grate machine deviates to one side, the side plate that runs with the grate bed approaches the flush inductive proximity switch, and the deviation sensing mechanism is immediately sensed and started, and the two AC contactors on this side are controlled to operate through the intermediate relay 6 in the direction of this side. The two AC contactors respectively control the start of two hydraulic systems, and the hydraulic cylinders 11 of the two hydraulic systems simultaneously make reverse lifting and lowering movements. When the grate bed of the chain grate machine deviates to one side, the hydraulic cylinder 11 makes an upward movement, and at the same time, the hydraulic cylinder 11 on the other side synchronously makes a downward movement. When the hydraulic cylinder is in action, the wire rope connected to the hydraulic cylinder passes through the redirection pulley set 12, and at the same time, the adjustment wheels 13 on both sides of the chain grate machine are adjusted to tighten and loosen along the adjustment slide rail 14, thereby realizing automatic adjustment of the grate bed of the chain grate machine. After the grate bed is balanced, it is separated from the sensing distance of the grate bed deviation sensing mechanism, the deviation correction device automatically stops working, and the chain grate machine achieves stable operation.
[0040] The design concept of this utility model patent adheres to the principle of simple structure, so that it can quickly and accurately monitor and automatically adjust the deviation of the grate bed of the chain grate machine in real time during operation. The application can continuously monitor the operating status of the grate bed. Once the grate bed is found to have a tendency to deviate from the normal track, the system immediately starts the adjustment mechanism and fine-tunes the position of the grate bed until the grate bed returns to a balanced state. This automatic adjustment function greatly enhances the reliability of the equipment and effectively prevents equipment damage and accidental shutdowns that may be caused by the deviation of the grate bed during the production process. This ensures that the chain grate machine can operate continuously and stably, further improves the continuity and stability of the production process, and greatly improves production efficiency. For modern production enterprises that pursue high efficiency and low cost, this undoubtedly enhances the overall production competitiveness and provides solid technical support for ensuring the smooth operation of the production line.
[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. An automatic deviation correction device for a chain grate machine grate bed, characterized in that: include: A grate bed deviation sensing mechanism, the grate bed deviation sensing mechanism comprising grate bed running position sensing devices (4) located on both sides of the chain grate bed (1) and used for detecting the running positions of both sides of the chain grate bed; A tail wheel adjustment mechanism, the tail wheel adjustment mechanism comprising a left tail wheel adjustment part and a right tail wheel adjustment part of the same structure; each tail wheel adjustment part comprises an adjustment wheel (13), an adjustment slide rail (14) and a set of redirection pulley blocks (12); the adjustment wheel (13) is mounted on the adjustment slide rail (14); the adjustment slide rail (14) is located on the outer side of the tail of the chain grate machine grate bed (1), and each set of redirection pulley blocks (12) is wound with a steel wire rope; The hydraulic mechanism comprises two hydraulic stations located at the tail of the chain grate; the two hydraulic stations are respectively connected to a hydraulic cylinder through an oil circuit; wherein: One end of the steel wire rope is connected to the bearing of the adjusting wheel (13), and the other end of the steel wire rope is connected to the hydraulic cylinder; the grate bed operation position sensing device (4) on each side is respectively connected to the AC contactors controlling the working states of the two hydraulic stations through the intermediate relay (6) on that side.
2. The automatic deviation-correcting device for the grate bed of a chain grate machine according to claim 1, characterized in that: The grate bed operating position sensing device (4) is a photoelectric proximity switch or a Hall type proximity switch.
3. The automatic deviation-correcting device for the grate bed of a chain grate machine according to claim 2, characterized in that: The grate bed running position sensing device (4) is fixed to the frames on both sides of the chain grate machine by distributed welding of steel bar support rods.
4. The automatic deviation-correcting device for the grate bed of a chain grate machine according to claim 1, characterized in that: The 220V power supply is connected to the grate bed operation position sensing device (4) via a power adapter.
5. The automatic deviation-correcting device for the grate bed of a chain grate machine according to claim 1, characterized in that: The two sets of AC contactors are connected in reverse to control the two hydraulic stations located at the tail of the chain grate respectively.
6. The automatic deviation-correcting device for the grate bed of a chain grate machine according to claim 1, characterized in that: The adjusting slide rail (14) comprises an upper slide rail and a lower slide rail located on the same vertical plane; the upper slide rail and the lower slide rail are parallel to each other.