Device and method for eliminating trolley arching of sintering machine

Abstract

The invention discloses a trolley arching eliminating device and method for a sintering machine, and belongs to the technical field of trolley arching eliminating. The device comprises a sintering machine tail bend and a sintering machine horizontal track, one end of the sintering machine horizontal track is connected with a sintering machine balance track, and a balance track assembly is arranged at the bottom of the sintering machine balance track; the balance rail assembly comprises a front hydraulic cylinder and a rear hydraulic cylinder, the cylinder barrel end of the front hydraulic cylinder is communicated with the cylinder barrel end of the rear hydraulic cylinder, and the output end of the front hydraulic cylinder and the output end of the rear hydraulic cylinder are connected with the balance rail assembly. The sintering machine trolley is simple in structural design, convenient and fast to transform on site and easy to mount, dismount and maintain in the later period, the sintering machine trolley is in an inclined state in the horizontal direction through the arrangement of the balance rail assembly, the sintering machine trolley is in a resultant force formed by pushing hydraulic pressure and gravity, arching of the sintering machine trolley is eliminated, and the working efficiency of the sintering machine trolley is improved. The problem that an existing sintering machine trolley arches in actual production can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of eliminating arching of trolley cars, and more specifically, to a device and method for eliminating arching of a sintering machine trolley car Background Art

[0002] A sintering machine is the main equipment for sintering production. In its working process, a driving device is used to continuously rotate the head star wheel to drive the trolley cars forward. Each trolley car relies on the rear trolley car to push the front trolley car to move, forming the movement of the trolley cars on the upper plane. After running to the tail star wheel, the trolley cars rely on gravity and the thrust of the upper trolley cars to drive the east and west tail star wheels to rotate, and the tail star wheels then drive the lower trolley cars to move, forming a complete operation chain. However, the trolley cars of the sintering machine are prone to arching problems during the operation on the lower track after exiting the tail star wheel. Therefore, corresponding measures should be taken according to the causes of the arching problems

[0003] For sintering machines with a tail device of a moving frame star wheel structure, regardless of their size, when the trolley cars pass through the star wheel tooth plate along the tail curve and come out from the tail return path, there are varying degrees of arching phenomena; currently, all 6 sintering machines of Magang have problems of arching and bridging during the return of the trolley cars to different degrees. However, in actual production, the arching phenomenon during the return of the trolley cars has always been a problem affecting production. Specifically, when the trolley cars pass through the star wheel tooth plate along the tail wheel curve and return to enter the lower horizontal track, the rear wheels of each trolley car lift up and do not contact the track, and the arching height ranges from 10 to 70 millimeters, forming a sawtooth shape for the trolley cars on the return track. When running to the head, due to the action of the self-weight of the trolley cars, the trolley cars instantaneously fall and generate impacts, greatly shortening the service life of the trolley car wheels, axles, and even the sintering trolley cars

[0004] Patent for Invention CN 115479473 A Device for Eliminating Arching and Deviation of Sintering Machine Carriages. The present invention provides a device for eliminating arching and deviation of sintering machine carriages, including two groups of lifting track assemblies and a power system for providing thrust to the two groups of lifting track assemblies. Among them, the power system includes two power devices corresponding to the two groups of lifting track assemblies respectively, and each power device corresponds to a group of lifting track assemblies; each group of lifting track assemblies includes a first track located in the middle position and second tracks respectively arranged at both ends of the first track, and the first track is connected to the second tracks at both ends respectively, and each power device is connected to the first track of each group of lifting track assemblies; the first track of each group of track assemblies drives the second tracks at both ends of the first track to descend under the action of the corresponding power device, so as to eliminate the arching or deviation of the sintering machine carriage. By using the present invention, the problems of arching and deviation of the existing sintering machine carriages in actual production can be solved. The way of eliminating the arching of the carriage in the invention is to use the lifting of the track to make the overall movement of the sintering machine carriage to eliminate the arching of the carriage. The whole device is arranged in the middle of the return journey of the carriage, and it is severely squeezed by the carriage during the operation of the device, which is not conducive to the protection of the end seals of the carriage.

[0005] Utility Model Patent CN 217504343 U A Device for Preventing Arching and Bridging of Sintering Machine Carriages. The present utility model relates to a device for preventing arching and bridging of sintering machine carriages, including: a cross beam fixed at the bottom of the moving hopper beam located at the tail of the sintering machine; two pressure wheels respectively fixed on both sides of the bottom of the cross beam, and the two pressure wheels are adapted to abut against the top of the flipped sintering machine carriage; when the star wheel pushes the carriage, the pressure wheels act on the top of the sintering machine carriage, and the direction of the thrust between the star teeth and the carriage is changed through the action of the pressure wheels, so that the front and rear sintering machine carriages are smoothly connected, ensuring that the sintering machine carriage passes through the curved track smoothly. The device for preventing bridging and arching of the sintering carriage overcomes the upward picking force of the star wheel tooth plate on the caster of the sintering machine carriage when the star wheel at the tail pushes the carriage, and effectively restricts the occurrence of bridging and arching phenomena between the front and rear sintering machine carriages. This invention uses the gravity of the cross beam to press the carriage for self-correction, and its gravity has a large resistance to the operation of the carriage.

[0006] In comparison, this application applies the lever principle and uses the self-gravity of the sintering machine carriage to correct the bridging of the carriage. The equipment uses hydraulic pressure as the medium, which is safe and controllable. Summary of the Invention

[0007] 1. Technical Problems to be Solved by the Invention

[0008] In view of the defects and deficiencies existing in the prior art, the present invention provides an anti-arching elimination device and method for a sintering machine. The structure of the present invention is simply designed, the transformation of the site is convenient and fast, and it is easy to install, disassemble and maintain in the later stage. By setting a balance track assembly driven by a front hydraulic cylinder and a rear hydraulic cylinder, the sintering machine trolley is in an inclined state in the horizontal direction under the combined force formed by the pushing hydraulic pressure and gravity, so as to eliminate the arching of the sintering machine trolley and solve the problem of arching of the existing sintering machine trolley in actual production.

[0009] 2. Technical solution

[0010] To achieve the above object, the technical solution provided by the present invention is as follows:

[0011] An anti-arching elimination device for a sintering machine of the present invention includes a sintering machine tail bend and a sintering machine horizontal track. The sintering machine tail bend is connected to the sintering machine horizontal track. One end of the sintering machine horizontal track is connected to a sintering machine balance track, and a balance track assembly is arranged at the bottom of the sintering machine balance track;

[0012] The balance track assembly includes a front hydraulic cylinder and a rear hydraulic cylinder. The cylinder barrel ends of the front hydraulic cylinder and the rear hydraulic cylinder are communicated with each other, and the output ends of the front hydraulic cylinder and the rear hydraulic cylinder are respectively connected to the balance track assembly.

[0013] Further, the front hydraulic cylinder and the rear hydraulic cylinder are arranged at intervals at the bottom of the sintering machine balance track, and the input ends of the front hydraulic cylinder and the rear hydraulic cylinder are respectively connected to an electric control system.

[0014] Further, the output end of the sintering machine balance track is connected to a horizontal return track.

[0015] Further, the sintering machine tail bend, the sintering machine horizontal track, the sintering machine balance track, and the horizontal return track are all used to carry the sintering machine trolley, and a trolley front wheel and a trolley rear wheel are respectively arranged at the bottom of the sintering machine trolley.

[0016] Further, two groups of the sintering machine horizontal track, the sintering machine balance track, the horizontal return track and the balance track assembly are respectively arranged, and the two groups of sintering machine balance tracks are lifted and lowered simultaneously under the action of the balance track assembly.

[0017] Further, sintering machine upper pressure rails are arranged at intervals on the upper parts of the sintering machine horizontal track, the sintering machine balance track, and the horizontal return track.

[0018] A method for eliminating the arching of sintering machine pallets. The two ends of the sintering machine pallets run along two corresponding running tracks respectively. When the sintering machine pallets run out of the tail bend of the sintering machine and enter the horizontal track of the sintering machine, the front wheels of the pallets are pressed on the horizontal track of the sintering machine under the action of gravity and run. When the front wheels of the pallets run to the balance track of the sintering machine, due to the action of gravity, the balance track of the sintering machine moves downward, the front hydraulic cylinder is under pressure and squeezes the medium inside the cylinder body, and the internal medium pushes the rear hydraulic cylinder upward, and the descending height of the front hydraulic cylinder is the same as the ascending height of the rear hydraulic cylinder;

[0019] When multiple sintering machine pallets continuously pass through the balance track of the sintering machine, after the front wheels of the rear sintering machine pallet run to the balance track of the sintering machine, it causes the balance track of the sintering machine to move up and down. The front wheels of the pallet press down on the balance track of the sintering machine, causing the front hydraulic cylinder of the balance track assembly to move downward. The hydraulic internal medium transmits pressure to make the rear hydraulic cylinder of the balance track assembly move upward, which can lift the front wheels of the previous sintering machine pallet, thus eliminating the arching of the pallet.

[0020] Furthermore, when the entire sintering machine pallet runs onto the balance track of the sintering machine, the gravity of the sintering machine pallet is at the center of the pallet, and the balance track of the sintering machine is in a horizontal state.

[0021] Furthermore, the length L of the balance track of the sintering machine is equal to the sum of the width A of the sintering machine pallet and the horizontal distance B from one end of the sintering machine pallet to the center line of the front wheel of the sintering machine pallet.

[0022] 3. Beneficial effects

[0023] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects:

[0024] The structure of the present invention is simply designed, the transformation of the site is convenient and fast, and it is easy to install, disassemble and maintain in the later stage. By setting a balance track assembly driven by a front hydraulic cylinder and a rear hydraulic cylinder, the resultant force formed by the pushing hydraulic pressure and gravity of the sintering machine pallet in a tilted state in the horizontal direction is used to eliminate the arching of the sintering machine pallet, and it can solve the problem of arching of the existing sintering machine pallet in actual production. Brief description of the drawings

[0025] Figure 1 is the overall structure of the present invention;

[0026] Figure 2 is the working state diagram of the present invention;

[0027] Figure 3 is the schematic diagram of the force on the arching of the pallet of the present invention;

[0028] Figure 4 is the arching state diagram of the present invention.

[0029] In the figure: 1. Tail bend of the sintering machine; 2. Horizontal track of the sintering machine; 3. Balance track of the sintering machine; 4. Balance track assembly; 401. Front hydraulic cylinder; 402. Rear hydraulic cylinder; 5. Horizontal return track; 6. Sintering machine trolley; 601. Front wheel of the trolley; 602. Rear wheel of the trolley; 7. Upper pressing rail of the sintering machine. Specific implementation mode

[0030] The present invention will be further described below in conjunction with the drawings and embodiments:

[0031] Embodiment 1

[0032] From Figures 1-4 It can be seen that an anti-arching elimination device for a sintering machine in this embodiment includes a tail bend 1 of the sintering machine and a horizontal track 2 of the sintering machine. The tail bend 1 of the sintering machine is connected to the horizontal track 2 of the sintering machine. One end of the horizontal track 2 of the sintering machine is connected to a balance track 3 of the sintering machine. A balance track assembly 4 is arranged at the bottom of the balance track 3 of the sintering machine;

[0033] The balance track 3 of the sintering machine and the balance track assembly 4 are arranged on the return path of the sintering machine trolley 6; the balance track 3 of the sintering machine performs lifting and lowering actions under the action of the corresponding hydraulic devices of the balance track assembly 4 to eliminate the arching of the sintering machine trolley 6;

[0034] The balance track assembly 4 includes a front hydraulic cylinder 401 and a rear hydraulic cylinder 402. The cylinder barrel ends of the front hydraulic cylinder 401 and the rear hydraulic cylinder 402 are interconnected. The output ends of the front hydraulic cylinder 401 and the rear hydraulic cylinder 402 are respectively connected to the balance track assembly 4.

[0035] The front hydraulic cylinder 401 and the rear hydraulic cylinder 402 are arranged at intervals at the bottom of the balance track 3 of the sintering machine. The input ends of the front hydraulic cylinder 401 and the rear hydraulic cylinder 402 are respectively connected to the electric control system. The front hydraulic cylinder 401 and the rear hydraulic cylinder 402 can be selected as hydraulic electric cylinders;

[0036] The tail bend 1 of the sintering machine, the horizontal track 2 of the sintering machine, the balance track 3 of the sintering machine, and the horizontal return track 5 are all used to carry the sintering machine trolley 6. The bottom of the sintering machine trolley 6 is respectively provided with a front wheel 601 and a rear wheel 602 of the trolley.

[0037] The output end of the balance track 3 of the sintering machine is connected to a horizontal return track 5; upper pressing rails 7 of the sintering machine are arranged at intervals above the horizontal track 2 of the sintering machine, the balance track 3 of the sintering machine, and the horizontal return track 5;

[0038] The horizontal track 2 of the sintering machine, the balance track 3 of the sintering machine, the horizontal return track 5, and the balance track assembly 4 are respectively provided with two groups. The two groups of balance tracks 3 of the sintering machine are lifted and lowered simultaneously under the action of the balance track assembly 4.

[0039] Each set of sintering machine balance tracks 3 is respectively connected to the horizontal return track 5. Each set of balance track assemblies 4 is adjusted according to the reverse pressure generated by the horizontal return track 5 to eliminate the arching of the sintering machine trolley 6, thereby solving the problem of arching of the existing sintering machine trolley in actual production.

[0040] Embodiment 2

[0041] From Figures 1-2 It can be seen that in the method of the anti-arching elimination device for a sintering machine in this embodiment, both ends of the sintering machine trolley 6 run along two corresponding running tracks respectively. When the sintering machine trolley 6 runs out from the tail bend 1 of the sintering machine and enters the horizontal track 2 of the sintering machine, when the front wheel 601 of the trolley enters the horizontal track 2 of the sintering machine, it is pressed on the horizontal track 2 of the sintering machine by the action of gravity and runs. When the front wheel 601 of the trolley runs to the balance track 3 of the sintering machine, due to the action of gravity, the balance track 3 of the sintering machine moves downward. The front hydraulic cylinder 401 is pressed to squeeze the internal medium in the cylinder body. The internal medium is hydraulic oil, and the internal medium pushes the rear hydraulic cylinder 402 upward, and the descending height of the front hydraulic cylinder 401 is the same as the ascending height of the rear hydraulic cylinder 402.

[0042] When multiple sintering machine trolleys 6 continuously pass through the balance track 3 of the sintering machine, after the front wheel 601 of the rear sintering machine trolley 6 runs to the balance track 3 of the sintering machine, it causes the balance track 3 of the sintering machine to move up and down. The front wheel 601 of the trolley presses down on the balance track 3 of the sintering machine, causing the front hydraulic cylinder 401 of the balance track assembly 4 to move downward. The hydraulic internal medium transmits pressure to make the rear hydraulic cylinder 402 of the balance track assembly 4 move upward, which can lift the front wheel 601 of the previous sintering machine trolley 6, thereby eliminating the arching of the trolley.

[0043] When the entire sintering machine trolley 6 runs onto the balance track 3 of the sintering machine, the gravity of the sintering machine trolley 6 is at the center of the trolley, and the balance track 3 of the sintering machine is in a horizontal state.

[0044] The length L of the balance track 3 of the sintering machine is equal to the sum of the width A of the sintering machine trolley 6 and the horizontal distance B from one end of the sintering machine trolley 6 to the center line of the front wheel 8 of the sintering machine trolley 6.

[0045] Figure 3 Shows the force diagram of the sintering machine trolley; Figure 4 Shows the arching state of the sintering car trolley and the restored state of the balance system;

[0046] When the sintering machine trolley is in an arched state, the end of the rear trolley contacts and tightly presses the end of the front trolley. The friction force during this period is greater than the self-gravity of the trolley, making it unable to fall onto the trolley running track. Each trolley will go through this process, resulting in the arching phenomenon of the trolleys on the return track.

[0047] When the balance track assembly 4 acts on the corresponding balance track 3 of the sintering machine, the front part of the balance track 3 of the sintering machine is lifted simultaneously and the rear part is lowered simultaneously to form a balance track, so as to eliminate the arching fault of the sintering machine trolley caused by the friction force between adjacent trolleys of the sintering machine.

[0048] As Figure 2 shown, after the balance track assembly 4 is started, the arching coefficient of the sintering machine trolley 6 is measured by the pressure of the rear wheel 602 of the trolley on the pressing rail 7 of the sintering machine; when the front wheel 601 of the trolley of the No. X1 sintering machine trolley 6 enters the balance track 3 of the sintering machine, the self-gravity of the trolley and the upward jacking force of the arching rear wheel of the trolley acting on the pressing rail 7 of the sintering machine act on the balance track 3 of the sintering machine at the same time. The hydraulic system is forced by the rear part of the balance track 3 of the sintering machine to make the rear hydraulic cylinder 402 lift upward, so that the front wheel 601 of the No. X2 sintering machine trolley 6 is lifted upward. A height difference is formed between the front wheel 601 of the No. X2 sintering machine trolley 6 and the rear wheel 602 of the No. X3 sintering machine trolley 6. Then the No. X2 sintering machine trolley 6 slowly drives away from the balance track 3 of the sintering machine, reducing the height difference between the front and rear wheels of the No. X2 sintering machine trolley 6. The trolley experiences three processes of downhill operation, uphill operation, and horizontal operation, eliminating the friction force between the trolleys, thereby eliminating the phenomenon of trolley arching; after the arching phenomenon is eliminated, the power system of the device returns to the initial height, and the balance track assembly 4 descends to the horizontal height, enabling the sintering machine trolley 6 to run smoothly according to the original design.

[0049] The structure of the present invention is simply designed, convenient and fast for on-site transformation, and easy to install, disassemble and maintain in the later stage. By setting the balance track assembly 4 driven by the front hydraulic cylinder 401 and the rear hydraulic cylinder 402, the resultant force formed by the pushing hydraulic pressure and gravity of the sintering machine trolley 6 in a tilted state in the horizontal direction is used to eliminate the arching of the sintering machine trolley 6, and the problem of arching of the existing sintering machine trolley in actual production can be solved.

[0050] The above schematically describes the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the purpose of the present invention creation, they shall fall within the protection scope of the present invention.

Claims

1. A sintering machine trolley arch elimination device, comprising a sintering machine tail bend (1) and a sintering machine horizontal track (2), characterized in that: The tail bend (1) of the sintering machine is connected to the horizontal track (2) of the sintering machine, one end of the horizontal track (2) of the sintering machine is connected to the balancing track (3) of the sintering machine, and the bottom of the balancing track (3) of the sintering machine is provided with a balancing track assembly (4); The balancing track assembly (4) comprises a front hydraulic cylinder (401) and a rear hydraulic cylinder (402); the cylinder barrel ends of the front hydraulic cylinder (401) and the rear hydraulic cylinder (402) are connected to each other; and the output ends of the front hydraulic cylinder (401) and the rear hydraulic cylinder (402) are respectively connected to the balancing track assembly (4).

2. The device for preventing trolley from arching in a sintering machine according to claim 1, characterized in that: The front hydraulic cylinder (401) and the rear hydraulic cylinder (402) are arranged at intervals at the bottom of the sintering machine balance track (3), and the input ends of the front hydraulic cylinder (401) and the rear hydraulic cylinder (402) are respectively connected to the electric control system.

3. The device for preventing trolley from arching in a sintering machine according to claim 1, characterized in that: The output end of the sintering machine balance track (3) is connected to a horizontal return track (5).

4. The device for preventing trolley from arching in a sintering machine according to claim 3 is characterized in that: The sintering machine tail curve (1), the sintering machine horizontal track (2), the sintering machine balance track (3), and the horizontal return track (5) are all used to carry the sintering machine trolley (6), and the bottom of the sintering machine trolley (6) is respectively provided with a trolley front wheel (601) and a trolley rear wheel (602).

5. The device for preventing trolley from arching in a sintering machine according to claim 4, characterized in that: The sintering machine horizontal track (2), the sintering machine balance track (3), the horizontal return track (5) and the balance track assembly (4) are respectively provided in two groups, and the two groups of sintering machine balance tracks (3) are lifted and lowered simultaneously under the action of the balance track assembly (4).

6. The device for preventing trolley from arching in a sintering machine according to claim 5, characterized in that: The upper parts of the sintering machine horizontal rail (2), the sintering machine balance rail (3), and the horizontal return rail (5) are spaced apart with sintering machine upper pressure rails (7).

7. The method for preventing trolley arching of a sintering machine according to claim 6, characterized in that: The two ends of the sintering machine trolley (6) respectively run along two corresponding running tracks. When the sintering machine trolley (6) runs out of the bend (1) at the rear of the sintering machine and enters the horizontal track (2) of the sintering machine, the front wheels (601) of the trolley are pressed on the horizontal track (2) of the sintering machine by gravity when entering the horizontal track (2) of the sintering machine. When the front wheels (601) of the trolley run to the balancing track (3) of the sintering machine, the balancing track (3) of the sintering machine moves downward due to the action of gravity. The front hydraulic cylinder (401) is pressed by pressure to squeeze the internal medium of the cylinder body. The internal medium pushes the rear hydraulic cylinder (402) to move upward, and the descending height of the front hydraulic cylinder (401) is the same as the ascending height of the rear hydraulic cylinder (402). When a plurality of sintering machine trolleys (6) continuously pass through the sintering machine balance track (3), the trolley front wheels (601) of the rear sintering machine trolley (6) run to the sintering machine balance track (3), causing the sintering machine balance track (3) to move up and down. The trolley front wheels (601) press the sintering machine balance track (3) downward, causing the front hydraulic cylinder (401) of the balance track assembly (4) to move downward. The hydraulic internal medium transmits pressure to cause the rear hydraulic cylinder (402) of the balance track assembly (4) to move upward, thereby lifting the trolley front wheels (601) of the front sintering machine trolley (6), thereby eliminating the trolley arching.

8. The method for preventing trolley arching of a sintering machine according to claim 7, characterized in that: When the sintering machine trolley (6) as a whole runs onto the sintering machine balance track (3), the gravity of the sintering machine trolley (6) is at the center of the trolley, and the sintering machine balance track (3) is in a horizontal state.

9. The method for preventing trolley arching of a sintering machine according to claim 7, characterized in that: The length L of the sintering machine balance rail (3) is equal to the sum of the width A of the sintering machine trolley (6) and the horizontal distance B from one end of the sintering machine trolley (6) to the center line of the sintering machine trolley front wheel (8).

Images