Steel pusher with double limiting mechanisms
By designing a dual limit mechanism in the push steel machine, and using the barrier mechanism and proximity switch to control the movement of the push steel machine trolley, the problem of easy damage when the push steel machine trolley is solved, the effect of preventing push or backward is achieved, and safety and equipment hidden dangers are reduced.
Patent Information
- Application Number
- CN202422123277.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-08-30
AI Technical Summary
Existing steel-pushing trolleys are prone to backing when they are returned, resulting in damage to the trolley, posing safety hazards and equipment hazards, affecting normal production.
A steel pusher with a dual limiting mechanism is designed. By setting up a barrier mechanism and a proximity switch, the movement of the steel pusher trolley is controlled to prevent it from being pushed or backward. At the same time, by setting up an installation box and a press switch on the push steel machine trolley, and setting up a press lever that cooperates with the press switch on the installation box, ensuring that the position can still be limited when the close switch fails, preventing it from being pushed or backed.
Effectively prevent the steel pusher truck from pushing or reversing when pushing the cast billet and returning it, avoid damaging the equipment, reduce safety and equipment hidden dangers, and ensure normal production.
Smart Images
Figure CN223028420U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of continuous casting process, and particularly relates to a pusher with a double limit mechanism. Background Technique
[0002] Iron and steel enterprises are the basic industries of the national economy. Under the situation of the rapid development of the national economy, the steel output has been continuously increasing in recent years. The crude steel output in China reached 8.04×10⁸ t / a in 2015, accounting for 49.5% of the global crude steel output.
[0003] With the development and maturity of continuous casting technology, the hot charging and hot delivery technology of continuous casting billets that makes full use of the self-heat energy of continuous casting billets has become one of the important means of energy conservation and consumption reduction in iron and steel production enterprises. The implementation of the hot delivery and hot charging process of continuous casting billets indicates that the steelmaking - continuous casting - rolling process has reached a very high level of integration and intensification.
[0004] At present, after the pusher of the continuous casting machine finishes pushing the casting billet, when the pusher trolley retreats, the trolley often retreats too far. Once it retreats too far, it is easy to damage the pusher trolley. Seriously, the trolley may damage the cooling bed platform, damage the equipment, posing major safety hazards and equipment hazards, and seriously affecting normal production. Content of the Utility Model
[0005] In order to solve the problem that the pusher trolley of the existing technology is easy to damage the equipment when it retreats too far, the utility model provides a pusher with a double limit mechanism. By the mutual cooperation of the provided blocking mechanism with the installation box and the pressing rod, the pusher trolley can be controlled when the proximity switch fails, preventing the pusher trolley from retreating too far and damaging the equipment.
[0006] The technical solution adopted by the pusher with a double limit mechanism of the utility model is as follows:
[0007] A pusher with a double limit mechanism includes a hot delivery mechanism for conveying casting billets, a track, and a pusher trolley. A number of groups of blocking mechanisms are arranged on both sides of the hot delivery mechanism. Proximity switches that cooperate with the blocking mechanisms are arranged on both the front and rear sides of the pusher trolley in its running direction. An installation box is arranged below each proximity switch of the pusher trolley. A pressing switch is arranged in the installation box. A pressing rod that can move along the length direction of the installation box and cooperate with the pressing switch is arranged on one side of the installation box facing the blocking mechanism.
[0008] The further improvement of the technical solution of the utility model lies in that: the conveying mechanism includes multiple hot delivery rollers arranged in parallel. Both ends of each hot delivery roller are hinged to an installation seat through a rotating shaft, and a driving motor for driving the corresponding hot delivery roller is arranged on one of the installation seats.
[0009] A further improvement of the above technical solution of the present utility model lies in that: the tracks are arranged between every two adjacent hot charging rollers, and the tops of the tracks and the tops of the hot charging rollers are located on the same horizontal plane.
[0010] A further improvement of the above technical solution of the present utility model lies in that: the pusher car is slidably arranged on the track, and a driving mechanism for driving the pusher car to move along the track is arranged on the track.
[0011] A further improvement of the technical solution of the present utility model lies in that: each group of the blocking mechanisms includes blocking blocks located at both ends of the hot charging rollers.
[0012] A further improvement of the above technical solution of the present utility model lies in that: a vertical sliding plate is slidably arranged in each mounting box, and the sliding plate is fixedly connected to one end of the pressing rod located inside the mounting box; and the pressing switch is located on the inner wall of the mounting box far away from the pressing rod.
[0013] A further improvement of the above technical solution of the present utility model lies in that: sliding grooves are formed in the opposite inner walls of the mounting box along the length direction of the mounting box, and a sliding block fixedly connected to the sliding plate is slidably arranged in each sliding groove; wherein, each sliding block is connected to the inner wall of the corresponding sliding groove through a plurality of compression springs.
[0014] Due to the adoption of the above technical solution, the technical progress achieved by the present utility model includes:
[0015] By arranging the blocking mechanism and the proximity switch, the present utility model can control the pusher car to stop moving when the proximity switch approaches the corresponding blocking mechanism, so as to prevent the pusher car from pushing too far or retreating too far when the pusher car pushes the billet and retreats after pushing the billet, resulting in equipment damage.
[0016] Meanwhile, in the present utility model, by arranging a mounting box and a pressing switch on the pusher car, and arranging a pressing rod cooperating with the pressing switch at a position corresponding to the blocking mechanism on the mounting box, when the proximity switch fails, as the pusher car moves, the pressing rod contacts the corresponding blocking mechanism. At the same time, due to the continuous movement of the pusher car, the pressing rod will move into the corresponding mounting box until the pressing rod presses the pressing switch in the corresponding mounting box. At this time, the pressing switch disconnects, and the pusher car stops moving, so that when the proximity switch fails, the pusher car can still be limited, preventing the pusher car from pushing too far or retreating too far.
[0017] In the present utility model, when the pressing rod moves into the corresponding mounting box, it will drive the sliding plate to move towards the pressing switch. At this time, the sliding plate drives the sliding block to move in the sliding groove, and the compression spring is compressed. When the compression spring is compressed, it will absorb the kinetic energy of the pusher car, so that the pusher car can stop moving on the track as soon as possible. Description of the Drawings
[0018] Figure 1 is a schematic structural view of a pusher with a double limiting mechanism according to the present utility model;
[0019] Figure 2 is a schematic structural view of another angle of a pusher with a double limiting mechanism according to the present utility model;
[0020] Figure 3 is a schematic cross-sectional structural view of the installation box of a pusher with a double limiting mechanism according to the present utility model in the horizontal direction.
[0021] In the drawings: 1, rail; 2, pusher trolley; 3, stop block; 4, proximity switch;
[0022] 5, installation box; 51, push switch; 52, push rod; 53, sliding plate; 54, chute; 55, slider; 56, compression spring;
[0023] 6, hot delivery roller; 61, mounting seat; 62, drive motor;
[0024] 7, drive mechanism. Specific embodiments
[0025] To make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. In the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present utility model.
[0026] First, referring to Figure 1 and Figure 2 it can be seen that the present utility model includes a hot delivery mechanism for conveying billets, and a pusher trolley 2 arranged on one side of the hot delivery mechanism through a rail 1; continuing to refer to Figure 1 and Figure 2 , a number of groups of blocking mechanisms are arranged on both sides of the hot delivery mechanism, and the number of groups of the blocking mechanisms can be one group, two groups or more than two groups. At the same time, a limiting mechanism for controlling itself is arranged at the position of the pusher trolley 2 corresponding to the blocking mechanism.
[0027] When the hot delivery mechanism of the present utility model is specifically arranged, it can continue to refer to Figure 1 and Figure 2 , according to Figure 1 and Figure 2 it can be seen that the hot delivery mechanism includes a plurality of hot delivery rollers 6 arranged in parallel. Both ends of each hot delivery roller 6 are hinged to a mounting seat 61 installed on the ground through a rotating shaft, and one of the mounting seats 61 is fixedly connected with a drive motor 62 for driving the hot delivery roller 6 to rotate; continuing to refer to Figure 1 and Figure 2, a track 1 parallel to the hot charging rollers 6 is provided between every two adjacent hot charging rollers 6, and one end of the track 1 extends outward beyond the length of the hot charging rollers 6. At the same time, the top of the track 1 and the top of the hot charging rollers 6 are on the same horizontal plane; continue to refer to Figure 1 and Figure 2 , a pusher car 2 is provided on the track 1, and a driving mechanism 7 for driving the pusher car 2 to move along the track 1 is provided on the track 1. The driving mechanism 7 can adopt devices such as hydraulic rods commonly used in the prior art.
[0028] In the present utility model, when each set of blocking mechanisms is specifically arranged, it can continue to refer to Figure 1 and Figure 2 , according to Figure 1 and Figure 2 , it can be seen that each set of blocking mechanisms includes vertical blocking blocks 3 located at both ends of the hot charging rollers 6; when the limiting mechanism in the present utility model is specifically arranged, it can continue to refer to Figure 1 and Figure 2 , according to Figure 1 and Figure 2 , it can be seen that the limiting mechanism includes proximity switches 4 fixedly connected to the pusher car 2 at positions corresponding to each blocking block 3 on the left and right sides of the pusher car 2. The proximity switches 4 are used to control the start and stop of the above-mentioned driving mechanism 7; continue to refer to Figure 1 and Figure 2 , the limiting mechanism in the present utility model further includes an installation box 5 located below each proximity switch 4 and fixedly connected to the pusher car 2. A push switch 51 for controlling the above-mentioned driving mechanism 7 is arranged in the installation box 5, and a push rod 52 cooperating with the push switch 51 is arranged on one side of the installation box 5 corresponding to the position of the blocking block 3. In the present utility model, in order to facilitate the control of the driving mechanism 7, the above-mentioned proximity switches 4 and push switches are connected in series with the driving mechanism 7 in sequence.
[0029] When the installation box 5 and the push rod 52 in the present utility model are specifically connected, it can be referred to Figure 3 , according to Figure 3 , it can be seen that a vertical sliding plate 53 is arranged in the installation box 5, and sliding grooves 54 are formed in the inner walls of the installation box 5 on both sides of the sliding plate 53 along the length direction of the installation box 5. Each sliding groove 54 is slidably connected with a slider 55 fixedly connected to the sliding plate 53; continue to refer to Figure 3 it can be seen that each slider 55 is fixedly connected with a compression spring 56 arranged along the length direction of the sliding groove 54. One end of the compression spring 56 is fixedly connected with the slider 55, and the other end of the compression spring 56 is fixedly connected with the inner wall of the slider 55 corresponding to the sliding groove 54.
[0030] In the present utility model, in order to facilitate the extension of the pressing rod 52 into the installation box 5, a through hole with a diameter slightly larger than the diameter of the pressing rod 52 is provided on one side of the installation box 5 facing the blocking block 3. One end of the pressing rod 52 penetrates through the above-mentioned through hole and extends into the installation box 5 and is fixedly connected to the sliding plate 53; continue to refer to Figure 3 The pressing switch 51 is fixedly arranged on the inner wall of the installation box 5 away from the pressing rod 52.
[0031] The working principle of the pusher with a double limiting mechanism in this embodiment is as follows: When the present utility model is in use, the billet is located on the track 1, and then the driving mechanism 7 drives the pusher trolley 2 to move in the direction of the hot charging mechanism. When the pusher trolley 2 moves, the pusher trolley 2 will push the billet on the track 1 in the direction of the hot charging mechanism until the billet moves onto the hot charging mechanism, and the hot charging mechanism conveys the billet to the next working station.
[0032] When the pusher trolley 2 moves on the track 1, when the proximity switch 4 on the pusher trolley 2 approaches the corresponding blocking block 3 to a certain distance, the proximity switch 4 disconnects. At this time, the driving mechanism 7 of the pusher trolley 2 stops working, so that the pusher trolley 2 stops moving, preventing the pusher trolley 2 from pushing out or withdrawing from the track 1 and causing damage to other equipment.
[0033] When the present utility model is in use, when one of the proximity switches 4 fails, the driving mechanism 7 of the pusher trolley 2 will not stop working at the set position. At this time, the pressing rod 52 in the installation box 5 on the pusher trolley 2 contacts the corresponding blocking block 3. As the pusher trolley 2 continues to move, it will cause the pressing rod 52 to move into the installation box 5. At this time, the sliding plate 53 moves in the direction of the pressing switch 51, and the compression spring 56 is compressed. When the sliding plate 53 contacts the pressing switch 51, the pressing switch 51 disconnects, and the driving mechanism 7 of the pusher trolley 2 stops working, and the pusher trolley 2 stops moving. Thus, when the proximity switch 4 fails, it can prevent the pusher trolley 2 from pushing out or withdrawing from the track 1 and causing damage to other equipment.
[0034] At the same time, when the compression spring 56 is compressed, the compressed spring will absorb the kinetic energy of the pusher trolley 2, enabling the pusher trolley 2 to stop moving on the track 1 as soon as possible.
[0035] In the above embodiments, the present utility model provides a pusher with a double limit mechanism. By setting the blocking mechanism and proximity switch, the present utility model can control the pusher trolley to stop moving when the proximity switch approaches the corresponding blocking mechanism, thereby preventing the pusher trolley from pushing too far or retracting too far when pushing the billet and retracting after pushing the billet, resulting in equipment damage. At the same time, in the present utility model, an installation box and a pressing switch are provided on the pusher trolley, and a pressing rod cooperating with the pressing switch is arranged at the position corresponding to the blocking mechanism on the installation box. When the proximity switch fails, as the pusher trolley moves, the pressing rod contacts the corresponding blocking mechanism. At the same time, due to the continuous movement of the pusher trolley, the pressing rod will move into the corresponding installation box until the pressing rod presses the pressing switch in the corresponding installation box. At this time, the pressing switch disconnects, and the pusher trolley stops moving, so that when the proximity switch fails, it can still play a role in limiting the pusher trolley and prevent the pusher trolley from pushing too far or retracting too far.
[0036] The above-described embodiments are only descriptions of the preferred embodiments of the present utility model, and do not limit the concept and scope of the present utility model. Without departing from the design concept of the present utility model, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present utility model shall fall within the protection scope of the present utility model. The technical content claimed by the present utility model has been fully recorded in the claims.
Claims
1. A steel pusher with a double limit mechanism, comprising a hot delivery mechanism for conveying a cast billet, a track (1) and a steel pusher trolley (2), characterized in that: A plurality of blocking mechanisms are arranged on both sides of the hot delivery mechanism, and proximity switches (4) cooperating with the blocking mechanisms are arranged on both sides of the pusher trolley (2) located in the front and rear of the pusher trolley (2) in the running direction, and an installation box (5) is arranged below each proximity switch (4), a pressing switch (51) is arranged in the installation box (5), and a pressing rod (52) that can move along the length direction of the installation box (5) and cooperate with the pressing switch (51) is arranged on one side of the installation box (5) facing the blocking mechanism.
2. A steel pusher with a double limit mechanism according to claim 1, characterized in that: The conveying mechanism comprises a plurality of heat delivery rollers (6) arranged in parallel, both ends of each heat delivery roller (6) being hinged to a mounting seat (61) via a rotating shaft, and a driving motor (62) for driving the corresponding heat delivery roller (6) is provided on one of the mounting seats (61).
3. A steel pusher with a double limit mechanism according to claim 2, characterized in that: The track (1) is arranged between every two adjacent heat delivery rollers (6), and the top of the track (1) and the top of the heat delivery roller (6) are located on the same height plane.
4. The steel pusher with double limit mechanism according to claim 1, characterized in that: The steel pusher trolley (2) is slidably arranged on the track (1), and a driving mechanism (7) is arranged on the track (1) for driving the steel pusher trolley (2) to move along the track (1).
5. The steel pusher with double limit mechanism according to claim 2, characterized in that: Each group of the blocking mechanisms comprises blocking blocks (3) located at both ends of the hot delivery roller (6).
6. A steel pusher with a double limit mechanism according to any one of claims 1 to 5, characterized in that: A vertical sliding plate (53) is slidably arranged in each installation box (5), and the sliding plate (53) is fixedly connected to one end of a pressing rod (52) located in the installation box (5); and the pressing switch (51) is located on an inner wall of the installation box (5) away from the pressing rod (52).
7. A steel pusher with a double limit mechanism according to claim 6, characterized in that: Slide grooves (54) are provided on two opposite inner walls of the installation box (5) along the length direction of the installation box (5), and a sliding block (55) fixedly connected to the sliding plate (53) is slidably arranged in each slide groove (54); wherein each sliding block (55) is connected to the inner wall of the corresponding slide groove (54) via a plurality of compression springs (56).