Sintering machine trolley pushing device and sintering machine

Abstract

The utility model discloses a sintering machine trolley pushing device and a sintering machine, and relates to the technical field of smelting equipment. The pushing device comprises a pushing unit, the pushing unit comprises a mounting seat, a hydraulic cylinder is arranged on the mounting seat, and a pushing assembly used for pushing a wheel shaft of the trolley is arranged at the rod end of a piston rod of the hydraulic cylinder. The pushing assembly comprises a fixing plate arranged at the rod end of a piston rod of the hydraulic cylinder, a rotating plate is rotationally arranged at the upper end of the fixing plate through a first hinge shaft, a positioning plate is arranged on the side, facing the hydraulic cylinder, of the rotating plate on the fixing plate, and an elastic piece used for preventing the rotating plate from swinging towards the side away from the positioning plate is arranged between the rotating plate and the fixing plate. When the pushing assembly is in the open state, the rotating plate abuts against the positioning plate under the elastic acting force of the elastic piece. According to the trolley pushing device of the sintering machine and the sintering machine provided by the invention, pull seams can be generated between trolleys under the condition that the trolleys are full of materials or are in tight contact, so that the trolleys can be conveniently hoisted off line.

Description

Technical Field

[0001] The utility model relates to the technical field of smelting equipment, in particular to a sintering machine trolley pushing device and a sintering machine. Background Art

[0002] A sintering machine is the main equipment for sintering production. Sintered ore used in blast furnace smelting must be sintered by a sintering machine. The traditional sintering machine trolley runs by being pushed by the tooth plates on both sides of the head star wheel. After exiting the star wheel, each trolley closely leans against each other and pushes each other to complete the operation. During the long-term operation of the trolley, faults are likely to occur in the vehicle body and each operating component. When a fault is found during normal production, the trolley needs to be urgently lifted out for off-line maintenance, and a new trolley needs to be filled in time to ensure that the number of trolleys in operation is the same as the original.

[0003] However, since the trolleys in production are often covered with sintered ore, they are not only heavy but also the sintered materials will be agglomerated together after ignition sintering. In addition, the trolleys are closely leaned against each other with a large resistance. It is particularly difficult to directly lift them out with a crane. Only by using the crane to lift the trolley body and swing it left and right can a gap be generated between the trolleys, and then the trolley can be lifted out. This removal method not only has potential safety hazards but also has operational inconveniences. Summary of the Utility Model

[0004] In view of the above problems, a sintering machine trolley pushing device and a sintering machine provided by the present application can generate a gap between the trolleys when they are fully loaded or in close contact, so as to facilitate the lifting and off-line of the trolleys.

[0005] The technical solution adopted by the utility model to solve its technical problems is as follows:

[0006] A sintering machine trolley pushing device includes a pushing unit, and the pushing direction of the pushing unit is consistent with the running direction of the trolley;

[0007] The pushing unit includes a mounting seat, a hydraulic cylinder is arranged on the mounting seat, and a pushing assembly for pushing the axle of the trolley is arranged at the rod end of the piston rod of the hydraulic cylinder;

[0008] The pushing assembly includes a fixing plate arranged at the rod end of the piston rod of the hydraulic cylinder. A rotating plate is rotatably arranged at the upper end of the fixing plate through a first hinge shaft. A positioning plate is arranged on the fixing plate on the side of the rotating plate facing the hydraulic cylinder. An elastic member is arranged between the rotating plate and the fixing plate to prevent the rotating plate from swinging away from the positioning plate;

[0009] When the pushing assembly is in the open state, the rotating plate abuts against the positioning plate under the elastic force of the elastic member.

[0010] Further, the elastic member is a torsion spring sleeved on the first hinge shaft.

[0011] Further, a push rod is provided on the cylinder block of the hydraulic cylinder or on the mounting seat. When the piston rod of the hydraulic cylinder is fully retracted, the pushing assembly is in a folded state, and the push rod restricts the degree of freedom of the rotating plate to swing towards the side close to the positioning plate.

[0012] Further, an installation ring is sleeved on the cylinder block of the hydraulic cylinder. The installation ring is fixedly connected to the cylinder block of the hydraulic cylinder in a detachable manner. Two push rods are symmetrically arranged on both sides of the piston rod on the installation ring.

[0013] Further, first ear plates are respectively arranged on both sides of the fixed plate, and the first ear plates are located below the piston rod. An avoidance groove for accommodating the fixed plate is arranged at the lower end of the rotating plate. Second ear plates are respectively arranged on both sides of the lower end of the rotating plate where the avoidance groove is located. Hinge holes for accommodating the first hinge shaft are arranged on both the first ear plates and the second ear plates.

[0014] Further, the mounting seat includes an inclined portion. The tail end of the cylinder block of the hydraulic cylinder is hinged to the rear end of the mounting seat through a second hinge shaft. The lower end of the fixed plate of the pushing assembly abuts against the inclined portion.

[0015] Further, the mounting seat further includes a horizontal portion. The tail end of the cylinder block of the hydraulic cylinder is hinged to the horizontal portion of the mounting seat through a second hinge shaft.

[0016] Further, walking rollers are arranged at the lower end of the fixed plate.

[0017] Further, a guide groove matched with the walking rollers is arranged on the inclined portion of the mounting seat.

[0018] A sintering machine includes the pushing device according to any one of the above.

[0019] The beneficial effects of the present utility model are:

[0020] The sintering machine trolley pushing device and the sintering machine provided by the embodiment of the present application utilize the gap between the sintering machine trolley track and the air box to install the pushing device, and push the trolley to move through the pushing action of the pushing device, so as to generate a gap when the trolley is full of materials or in close contact for easy hoisting of the trolley. Description of the Drawings

[0021] Figure 1 It is a schematic installation structure diagram of a sintering machine trolley pushing device provided by the embodiment of the present application;

[0022] Figure 2 is Figure 1 the A-A sectional view in

[0023] Figure 3 is Figure 2 the enlarged structural schematic diagram of part A in

[0024] Figure 4 the installation perspective view of a sintering machine trolley pushing device provided by an embodiment of the present application;

[0025] Figure 5 the installation side view of a sintering machine trolley pushing device provided by an embodiment of the present application;

[0026] Figure 6 is Figure 5 the enlarged structural schematic diagram of part B in

[0027] Figure 7 the three-dimensional structural schematic of a sintering machine trolley pushing device provided by an embodiment of the present application Figure 1 ;

[0028] Figure 8 is Figure 7 the enlarged structural schematic diagram of part C in

[0029] Figure 9 is Figure 7 the enlarged structural schematic diagram of part D in

[0030] Figure 10 the three-dimensional structural schematic of a sintering machine trolley pushing device provided by an embodiment of the present application Figure 2 ;

[0031] Figure 11 is Figure 10 the enlarged structural schematic diagram of part E in

[0032] Figure 12 the three-dimensional structural schematic diagram when the pushing device is in the fully retracted state;

[0033] Figure 13 is Figure 12 the enlarged structural schematic diagram of part F in

[0034] Figure 14 the working state diagram when the pushing device is in the fully retracted state;

[0035] Figure 15 is Figure 14 the enlarged structural schematic diagram of part G in

[0036] In the figure: 11, faulty trolley; 12, upstream trolley; 13, downstream trolley; 14, axle;

[0037] 2. Pushing unit; 21. Mounting seat; 211. Horizontal part; 212. Inclined part; 2121. Guide groove; 213. Support vertical plate; 214. Bottom plate; 22. Hydraulic cylinder; 23. Pushing assembly; 231. Fixed plate; 2311. Plate body; 2312. Positioning plate; 2313. Connecting cylinder; 2314. First ear plate; 232. Rotating plate; 2321. Avoidance groove; 2322. Second ear plate; 233. First hinge shaft; 234. Torsion spring; 235. Traveling roller; 24. Back-tightening nut; 251. Mounting ring; 252. Push rod; 26. Set screw; 27. Second hinge shaft. Detailed implementation manners

[0038] To enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be described in detail below with reference to the accompanying drawings in the embodiments of this application. The described embodiments are only a part of the embodiments of this application, rather than all the embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of this application.

[0039] For the convenience of description, a coordinate system is now defined as Figure 4 shown, with the left-right direction as the transverse direction, the front-back direction as the longitudinal direction, and the up-down direction as the vertical direction.

[0040] Embodiment 1

[0041] As Figure 1 , Figure 4 , Figure 5 and Figure 6 shown, a sintering machine trolley pushing device includes two pushing units 2. The two pushing units 2 are respectively used to push the axle 14 on both sides of the trolley, and the pushing directions of the two pushing units 2 are the same and consistent with the running direction of the trolley.

[0042] As Figure 7 and Figure 10 shown, the pushing unit 2 includes a mounting seat 21. The mounting seat 21 is located inside the track (the side where the two tracks face each other is the inside) and is aligned with the axle 14 of the trolley. A hydraulic cylinder 22 is arranged on the mounting seat 21, and the rod end of the piston rod of the hydraulic cylinder 22 is provided with a pushing assembly 23.

[0043] As Figure 8 and Figure 11As shown in the figure, the pushing component 23 includes a fixing plate 231, and the fixing plate 231 is fixedly connected to the rod end of the piston rod of the hydraulic cylinder 22 in a detachable manner. A rotating plate 232 is provided at the upper end of the fixing plate 231. The rotating plate 232 is rotatably connected to the fixing plate 231 through a first hinge shaft 233, and the axis of the first hinge shaft 233 is perpendicular to the telescopic direction of the piston rod of the hydraulic cylinder 22. That is, according to Figure 4 the coordinate system shown, the rotating plate 232 can swing back and forth relative to the fixing plate 231. A positioning plate 2312 is provided on the fixing plate 231 on the side of the rotating plate 232 facing the hydraulic cylinder 22 (according to Figure 4 the coordinate system shown, it is the rear side of the rotating plate 232). An elastic member is provided between the rotating plate 232 and the fixing plate 231 to prevent the rotating plate 232 from swinging away from the positioning plate 2312 (according to Figure 4 the coordinate system shown, it is swinging forward). Under the elastic force of the elastic member, the rotating plate 232 abuts against the positioning plate 2312, and the pushing component 23 is in an open state.

[0044] As Figure 2 and Figure 3 shown, when the rotating plate 232 abuts against the positioning plate 2312, the upper end of the rotating plate 232 is located above the lowest point of the trolley rotating shaft. At this time, when the hydraulic cylinder 22 pushes the pushing component 23 forward, the rotating plate 232 can abut against the rotating shaft of the trolley and push the trolley forward.

[0045] When the trolley is running normally (moving forward), after the rotating shaft of the trolley contacts the rotating plate 232, it can push the rotating plate 232 to swing forward until the rotating shaft of the trolley disengages from the rotating plate 232. At this time, the rotating plate 232 will swing backward under the action of the elastic restoring force of the elastic member and abut against the positioning plate 2312. When the next rotation of the trolley contacts the rotating plate 232 again, the above process is repeated. That is, the pushing component 23 does not affect the normal operation of the trolley.

[0046] As a specific embodiment, as Figure 11As shown in the figure, in this embodiment, the fixed plate 231 includes a plate body 2311. On one side of the plate body 2311 facing the hydraulic cylinder 22, a connecting cylinder 2313 is provided. The connecting cylinder 2313 is fixedly connected to the rod end of the piston rod by means of threaded connection. A back-tightening nut 24 for relaxation is provided at the rod end of the piston rod. The positioning plate 2312 is fixedly arranged on the upper side of the connecting cylinder 2313 by welding, and the upper end of the positioning plate 2312 extends above the fixed plate 231. Preferably, the positioning plate 2312 has a triangular structure.

[0047] As a specific implementation manner, in this embodiment, the elastic member is a torsion spring 234 sleeved on the first hinge shaft 233.

[0048] Furthermore, from the above description, it can be seen that although the pushing assembly 23 will not affect the normal operation of the trolley, during the operation, due to the periodic collision between the rotating plate 232 and the rotating shaft of the trolley, this will not only generate noise, but also be unfavorable to the structural stability and will shorten the service life. Therefore, as Figure 7 and Figure 10 shown, a push rod 252 is provided on the cylinder body of the hydraulic cylinder 22 or on the mounting seat 21. As Figure 12 and Figure 13 shown, when the piston rod of the hydraulic cylinder 22 is fully retracted, the pushing assembly 23 is in a folded state, and the push rod 252 restricts the degree of freedom of the rotating plate 232 to swing towards the side close to the positioning plate 2312. That is, when the piston rod of the hydraulic cylinder 22 retracts to a certain extent, the push rod 252 will abut against the rotating plate 232, and as the piston rod continues to retract, the rotating plate 232 will swing towards the side away from the positioning plate 2312 under the pushing action of the push rod 252 until the piston rod of the hydraulic cylinder 22 is fully retracted, the rotating plate 232 swings forward to the limit position, and the pushing assembly 23 is in a folded state.

[0049] As a specific implementation manner, in this embodiment, the push rod 252 is provided on the cylinder body of the hydraulic cylinder 22.

[0050] As a specific implementation manner, as Figure 9As shown, in this embodiment, a mounting ring 251 is sleeved on the front end of the cylinder block of the hydraulic cylinder 22. The mounting ring 251 is fixedly connected to the cylinder block of the hydraulic cylinder 22 in a detachable manner. Two push rods 252 are symmetrically arranged on both sides of the piston rod on the mounting ring 251. One end of the push rod 252 is fixedly connected to the mounting ring 251 by welding, and the other end of the push rod 252 is in a spherical structure. Exemplarily, the mounting ring 251 is fixedly connected to the cylinder block of the hydraulic cylinder 22 by set screws 26.

[0051] Further, as Figure 8 shown, first ear plates 2314 are respectively arranged on the left and right sides of the plate body 2311, and the first ear plates 2314 are located below the connecting cylinder 2313. A relief groove 2321 for accommodating the plate body 2311 is arranged at the lower end of the rotating plate 232. Second ear plates 2322 are respectively arranged on both sides of the lower end of the rotating plate 232 at the relief groove 2321. Hinge holes for accommodating the first hinge shaft 233 are arranged on both the first ear plate 2314 and the second ear plate 2322.

[0052] In this way, the rotational torque of the rotating plate 232 can be increased, so that the push rod 252 can push the rotating plate 232 to swing forward.

[0053] Further, as Figure 7 shown, the mounting seat 21 includes an inclined portion 212 extending obliquely forward and upward. The tail end of the cylinder block of the hydraulic cylinder 22 is hinged to the rear end portion of the mounting seat 21 through a second hinge shaft 27. The lower end of the fixing plate 231 of the pushing assembly 23 abuts against the inclined portion 212 and can move back and forth along the inclined portion 212. In this way, the size of the pushing assembly 23 can be reduced, so as to reduce the torque when pushing the trolley and reduce the force on the pushing assembly 23.

[0054] Further, the mounting seat 21 further includes a horizontal portion 211 located behind the inclined portion 212. The tail end of the cylinder block of the hydraulic cylinder 22 is hinged to the horizontal portion 211 of the mounting seat 21 through a second hinge shaft 27.

[0055] Further, a supporting vertical plate 213 is arranged below the inclined portion 212, and a bottom plate 214 is arranged at the lower end of the supporting vertical plate 213. Exemplarily, two supporting vertical plates 213 are arranged below the inclined portion 212. The upper ends of the supporting vertical plates 213 are fixedly connected to the inclined portion 212 by welding, and the lower ends of the supporting vertical plates 213 are fixedly connected to the bottom plate 214 by welding.

[0056] Further, asFigure 8 As shown, a traveling roller 235 is provided at the lower end of the fixed plate 231. The traveling roller 235 abuts against the inclined portion 212 of the mounting base 21 and can roll back and forth along the inclined portion 212.

[0057] Further, as Figure 8 shown, a guide groove 2121 matching the traveling roller 235 is provided on the inclined portion 212 of the mounting base 21. The traveling roller 235 abuts against the bottom surface of the guide groove 2121, and the guide groove 2121 can guide the traveling roller 235.

[0058] When a certain trolley of the sintering machine breaks down, first control the operation of the entire trolley group to make the upstream trolley 12 adjacent to the faulty trolley 11 correspond to the pushing device. Then the pushing device acts to push the upstream trolley 12 adjacent to the faulty trolley 11 (with the running direction of the trolley as the upstream side) to move. At this time, a gap will be generated between the faulty trolley 11 and the upstream trolley 12 adjacent to the faulty trolley 11. Then control the operation of the entire trolley group to make the faulty trolley 11 correspond to the pushing device. Then the pushing device acts to push the faulty trolley 11 to move. At this time, a gap will be generated between the faulty trolley 11 and the upstream trolley 12 adjacent to the faulty trolley 11. Then lift the faulty trolley 11 by a crane.

[0059] A sintering machine includes a pushing device, which is as described above and will not be elaborated here.

[0060] Embodiment 2

[0061] The elastic member is a tension spring. One end of the tension spring is connected to the rotating plate 232 by hooking, and the other end of the tension spring is connected to the positioning plate 2312 by hooking. A hooking hole matching the tension spring is provided on the positioning plate 2312. The rest of the structure is the same as that of Embodiment 1.

[0062] Based on the embodiments provided in the present application, other embodiments obtained by those skilled in the art through means such as combining, splitting, and reorganizing the embodiments of the present application do not exceed the protection scope of the present application.

[0063] The above specific embodiments have described in detail the purpose, technical solution, and beneficial effects of the embodiments of the present application. The above are only the specific embodiments of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. That is, any modifications, equivalent replacements, improvements, etc. made on the basis of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A sintering machine trolley pushing device, characterized in that: It comprises a pushing unit (2), and the pushing direction of the pushing unit (2) is consistent with the running direction of the trolley; The ejection unit (2) comprises a mounting seat (21), a hydraulic cylinder (22) is arranged on the mounting seat (21), and an ejection assembly (23) for ejecting the wheel axle (14) of the trolley is arranged at the rod end of the piston rod of the hydraulic cylinder (22); The ejection assembly (23) comprises a fixed plate (231) arranged at the end of the piston rod of the hydraulic cylinder (22); a rotating plate (232) is rotatably arranged at the upper end of the fixed plate (231) via a first hinge shaft (233); a positioning plate (2312) is arranged on the fixed plate (231) on the side of the rotating plate (232) facing the hydraulic cylinder (22); and an elastic member is arranged between the rotating plate (232) and the fixed plate (231) for preventing the rotating plate (232) from swinging away from the positioning plate (2312); When the ejection assembly (23) is in an open state, the rotating plate (232) abuts against the positioning plate (2312) under the elastic force of the elastic member.

2. The sintering machine trolley pushing device according to claim 1, characterized in that: The elastic member is a torsion spring (234) sleeved on the first hinge shaft (233).

3. The sintering machine trolley pushing device according to claim 1, characterized in that: A push rod (252) is provided on the cylinder body of the hydraulic cylinder (22) or on the mounting seat (21); when the piston rod of the hydraulic cylinder (22) is fully retracted, the ejection assembly (23) is in a folded state, and the push rod (252) limits the freedom of the rotating plate (232) to swing toward the side close to the positioning plate (2312).

4. The sintering machine trolley pushing device according to claim 3, characterized in that: A mounting ring (251) is sleeved on the cylinder body of the hydraulic cylinder (22), and the mounting ring (251) is fixedly connected to the cylinder body of the hydraulic cylinder (22) in a detachable manner. Two push rods (252) are symmetrically arranged on the mounting ring (251) on both sides of the piston rod.

5. The sintering machine trolley pushing device according to claim 4, characterized in that: The fixed plate (231) is provided with a first ear plate (2314) on both sides, and the first ear plate (2314) is located at the lower side of the piston rod. The lower end of the rotating plate (232) is provided with an avoidance groove (2321) for accommodating the fixed plate (231). The lower end of the rotating plate (232) is located at the avoidance groove (2321) and is provided with a second ear plate (2322) on both sides. The first ear plate (2314) and the second ear plate (2322) are both provided with hinge holes for accommodating the first hinge shaft (233).

6. The sintering machine trolley pushing device according to claim 1, characterized in that: The mounting seat (21) comprises an inclined portion (212), the tail end of the cylinder body of the hydraulic cylinder (22) is hinged to the rear end of the mounting seat (21) via a second hinge shaft (27), and the lower end of the fixing plate (231) of the ejection assembly (23) abuts against the inclined portion (212).

7. The sintering machine trolley pushing device according to claim 6, characterized in that: The mounting seat (21) further comprises a horizontal portion (211), and the rear end of the cylinder body of the hydraulic cylinder (22) is hingedly connected to the horizontal portion (211) of the mounting seat (21) via a second hinge shaft (27).

8. The sintering machine trolley pushing device according to claim 6, characterized in that: A walking roller (235) is provided at the lower end of the fixed plate (231).

9. The sintering machine trolley pushing device according to claim 8, characterized in that: The inclined portion (212) of the mounting seat (21) is provided with a guide groove (2121) that matches the walking roller (235).

10. A sintering machine, characterized in that: The invention comprises the pushing device as described in any one of claims 1 to 9.

Images