Suspender swing mechanism for vibrating conveyor

Abstract

The utility model relates to a suspender swing mechanism for a vibrating conveyor, and belongs to the technical field of feeding equipment. Comprising two sliding block sets symmetrically arranged at the two ends of a suspender, each sliding block set comprises a sliding block and a sliding block seat, the suspender sequentially penetrates through the sliding blocks and the sliding block seats, and two nuts are locked at the two ends, penetrating through the sliding blocks, of the suspender, so that the suspender generates pre-tightening force; the sliding block is of a convex structure, the sliding block seat is of a concave structure matched with the sliding block, and the sliding block rotates in the concave cambered surface of the sliding block seat to drive the hanging rod to slide or swing on the sliding block group; the suspenders comprise a first suspender and a second suspender which are symmetrically arranged at two ends of a contact line of the slide block and the slide block seat. The pre-tightening force generated by the suspender can improve the fatigue strength of the threads of the suspender, and the reliability of production equipment and the continuity of production are guaranteed. The bearing capacity of the suspender swing mechanism can be improved, the service life of the suspender is prolonged, the sliding block and the sliding block seat are easy to replace, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of feeding equipment, and in particular relates to a suspension rod swing mechanism for a vibrating conveyor. Background Art

[0002] Scrap preheating continuous charging technology, a key technological innovation in the modern steel industry, has rapidly gained widespread recognition and adoption within steel companies due to its significant energy-saving, environmentally friendly, and highly efficient features. This technology, at its core, enables a continuous and stable supply of scrap steel, effectively improving energy efficiency during the steelmaking process and reducing energy consumption and waste emissions, meeting the current global demand for green and sustainable development.

[0003] The horizontal vibrating conveyor plays a crucial role in this system, serving as the key to achieving continuous loading. The conveyor boasts a sophisticated design, with its conveying chute cleverly supported by a series of carefully arranged suspension devices. These devices not only ensure smooth conveying but also allow the chute to be flexibly adjusted to suit the needs of conveying different types of scrap steel.

[0004] The boom swing mechanism, the core component of the suspension system, is both a difficult and crucial aspect of its technical implementation. This mechanism, through sophisticated mechanical design, achieves dynamic balance and stable control during the vibratory conveying of scrap steel. However, the alternating loads generated during the vibratory conveying process place the boom, and particularly its threaded connections, under extremely high stress cycles. Statistics show that the number of operating cycles can reach 200,000 to 300,000 per day. Under such high-frequency, high-load operating conditions, the boom threads are prone to developing microcracks due to long-term, accumulated fatigue. Over time, these cracks gradually expand, eventually leading to boom fracture, seriously impacting production safety and efficiency.

[0005] Furthermore, the operating environment of the boom swing mechanism is often extremely harsh, filled with dust and high temperatures, posing a severe challenge to the sliders and slider seats within the mechanism. Dust accumulation accelerates wear, increasing the clearance between sliding components, which in turn affects transmission accuracy and stability. Therefore, regular replacement of worn parts has become an essential part of maintenance. However, this process is not easy, as replacement requires dismantling and reinstalling the entire boom system, which is not only complex, time-consuming, and labor-intensive, but also can disrupt production line continuity during downtime, reducing overall production efficiency.

[0006] Therefore, although the scrap steel preheating continuous feeding technology has significant advantages, the maintenance and optimization of its key components such as the boom swing mechanism are still the key directions for technology upgrading and improvement. Utility Model Content

[0007] In view of this, the purpose of the present invention is to provide a boom swing mechanism for a vibrating conveyor, to improve the load-bearing capacity of the boom swing mechanism, to extend the service life of the boom, and to facilitate the replacement of the slider and the slider seat, thereby improving production efficiency.

[0008] In order to achieve the above-mentioned purpose, the present invention provides the following technical solutions:

[0009] A boom swing mechanism for a vibrating conveyor comprises two slider groups symmetrically arranged at both ends of a boom, each slider group comprising a slider and a slider seat sequentially penetrated by the boom; the boom is locked and pre-tightened by nuts respectively arranged at both ends of the slider;

[0010] The slider is a "convex" structure, and the slider seat is a "concave" structure that matches the slider. The slider slides or rotates in the concave arc surface of the slider seat, driving the suspension rod to slide or swing on the slider group.

[0011] Optionally, the slider includes a straight portion and a raised portion, a flat side of the raised portion is connected to the straight portion, and a raised arc side of the raised portion is connected to the slider seat.

[0012] Optionally, screw holes are respectively provided on the straight portion and the recessed portion, and screws are installed in the screw holes to connect the straight portion and the recessed portion.

[0013] Optionally, the slider seat includes a recessed portion and a base, the recessed portion is arranged on the base, and contacts the raised portion through one side of the recessed arc surface of the recessed portion.

[0014] Optionally, the curvature of the recessed portion is greater than or equal to the curvature of the raised portion, so as to facilitate the raised portion to slide or rotate on the recessed portion.

[0015] Optionally, the preload force is 60% to 70% of the yield strength of the hanger rod.

[0016] Optionally, the suspension rod includes a first suspension rod and a second suspension rod symmetrically arranged on both sides of the central axis of the raised portion and the recessed portion.

[0017] Optionally, the center distance between the first boom and the second boom is at least 3 times the diameter of the boom.

[0018] Optionally, the cross-sectional shape of the recessed portion is an "I" shape, and the first suspension rod and the second suspension rod are arranged on both sides of the recessed portion in the X direction of the "I" shape.

[0019] Optionally, the nut is a non-standard nut.

[0020] The beneficial effects of the present invention are:

[0021] The boom swing mechanism of the present invention uses nuts on both sides of the slider to tighten together, imparting a certain preload to the boom threads, significantly improving the fatigue strength of the boom threads. The slider and slider seat can be split into separate structures, allowing their working surfaces to be replaced independently without dismantling the boom, reducing downtime and making replacement convenient and efficient. Alternatively, a monolithic structure can be employed, simplifying the manufacturing and assembly process. The large center-to-center distance between the two booms reduces the alternating stress acting on each boom, helping to improve the fatigue life of the threads.

[0022] Other advantages, objectives, and features of the present invention will be described in detail in the following description and, to some extent, will be apparent to those skilled in the art upon examination and study of the following or may be learned from practice of the present invention. The objectives and other advantages of the present invention may be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below with reference to the accompanying drawings, in which:

[0024] Figure 1 It is a structural diagram of the boom swing mechanism;

[0025] Figure 2 This is a top view of the slider seat of the boom swing mechanism;

[0026] Figure 3 Schematic diagram of the slider part (integrated structure) of the boom swing mechanism;

[0027] Figure 4 Schematic diagram of the slider part (split structure) of the boom swing mechanism.

[0028] Reference numerals:

[0029] 1 suspension rod, 11 first suspension rod, 12 second suspension rod, 2 slider, 21 straight portion, 22 raised portion, 3 slider seat, 31 recessed portion, 32 base, 323 buckle cover, 4 nut, 5 contact line. DETAILED DESCRIPTION

[0030] The following describes the embodiments of the present invention through specific examples. Those skilled in the art can easily understand the other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments. The details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention. The following embodiments and the features in the embodiments can be combined with each other without conflict.

[0031] Among them, the accompanying drawings are only for illustrative purposes and represent only schematic diagrams rather than actual pictures, and should not be understood as limiting the present invention. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions may be omitted in the accompanying drawings.

[0032] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "front", "back", etc. indicating directions or positional relationships, they are based on the directions or positional relationships shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0033] See also Figures 1 to 4 It is a boom swing mechanism for a vibrating conveyor, comprising two slider groups symmetrically arranged at both ends of a boom 1, each slider group comprising a slider 2 and a slider seat 3 which are sequentially passed through the boom 1; the boom 1 is locked and pre-tightened by nuts 4 respectively arranged at both ends of the slider 2, and the pre-tightening force is 60% to 70% of the yield strength of the boom 1.

[0034] The slider 2 is a "convex" structure, and the slider seat 3 is a "concave" structure that matches the slider 2. The slider 2 slides or rotates in the concave arc surface of the slider seat 3, driving the suspension rod 1 to slide or swing on the slider group.

[0035] Slider 2 includes a straight portion 21 and a raised portion 22. The flat side of raised portion 22 is connected to the straight portion 21, while the curved side of raised portion 22 is connected to slider seat 3. Screw holes are provided in the straight portion 21 and the recessed portion 31, respectively, and screws are installed in the screw holes to connect the straight portion 21 and the recessed portion 31.

[0036] The slider base 3 includes a recessed portion 31 and a base 32. The recessed portion 31 is provided on the base 32 and contacts the protruding portion 22 through one side of the recessed arc surface of the recessed portion 31. The radian of the recessed portion 31 is greater than or equal to that of the protruding portion 22, facilitating the sliding or rotation of the protruding portion 22 on the recessed portion 31. The base 32 includes "U"-shaped buckle covers �23 symmetrically arranged on both sides of the recessed portion 31 in the Y direction, which play a role in fixing and strengthening the connection of the recessed portion 31.

[0037] The suspension rod 1 includes a first suspension rod 11 and a second suspension rod 12 symmetrically arranged on both sides of the central axes of the protruding portion 22 and the recessed portion 31. The central axis is the contact line 5 between the protruding portion 22 and the recessed portion 31. The center distance between the first suspension rod 11 and the second suspension rod 12 is at least three times the diameter of the suspension rod 1. The cross-sectional shape of the recessed portion 31 is "I"-shaped, and the first suspension rod 11 and the second suspension rod 12 are arranged in the recessed portions on both sides of the "I"-shaped in the X direction.

[0038] The nut 4 is a non-standard nut 4. Its advantage is that it is not restricted by the wrench space of the standard nut 4, making the structural dimensions of the whole set of mechanisms smaller and reducing the production and manufacturing costs.

[0039] Embodiment 1:

[0040] As Figures 1 to 4 shown, the suspension rod swing mechanism for a vibrating conveyor includes a suspension rod 1, an upper slider group, a lower slider group, and a nut 4. Each slider group includes a slider 2 and a slider base 3. The two suspension rods 1 sequentially pass through the upper slider group and the lower slider group respectively, and when passing through the slider 2, they are fixed with nuts 4 at the upper and lower ends of the slider 2 to form a swing mechanism. The first suspension rod 11 and the second suspension rod 12 are symmetrically arranged with respect to the contact line 5 between the slider 2 and the slider base 3.

[0041] The threaded portion of the suspension rod 1 fastened by the nut 4 has a pre-tightening force, and the pre-tightening force is 60% - 70% of the yield strength of the suspension rod 1. When the suspension rod swing mechanism without pre-tightening force works, the stress of the suspension rod 1 is less than 10% of its yield strength, being in an under-tightened state, and the stress concentration at the threaded portion is very sensitive to the alternating stress generated by the vibrating working condition. Compared with the suspension rod swing mechanism without pre-tightening force, the fatigue strength at the threaded portion in this embodiment can be increased by 5 - 10 times.

[0042] As Figure 3 shown, the slider 2 has a "convex" structure; the slider base 3 has a "concave" structure. In this embodiment, both the slider 2 and the slider base 3 are of integral structure, and the manufacturing and assembly processes are relatively simple.

[0043] Embodiment 2:

[0044] As Figure 4As shown, in this embodiment, the slider 2 is a split structure, composed of a straight portion 21 and a raised portion 22, with its working surface being an outer arc. The slider seat 3 is also a split structure, composed of a recessed portion 31 and a base 32, with its working surface being an inner arc. During operation, the slider 2 slides or swings on the slider seat 3 driven by the boom 1. After long-term operation and contact, the arc surface will wear. The split structure allows for easy replacement of vulnerable parts.

[0045] Example 3:

[0046] In this embodiment, the center distance between the two suspension rods 1 is preferably 3 times the diameter of the suspension rod 1. As the center distance increases, the alternating stress acting on each suspension rod 1 decreases, which helps to improve the fatigue life of the thread.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not limiting. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in this field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the utility model.

Claims

1. A boom swing mechanism for a vibrating conveyor, characterized in that: It comprises two slider groups symmetrically arranged at both ends of a suspension rod (1), each slider group comprising a slider (2) and a slider seat (3) sequentially passed through the suspension rod (1); the suspension rod (1) is locked and pre-tightened by nuts (4) respectively arranged at both ends of the slider (2); The slider (2) is a "convex" structure, and the slider seat (3) is a "concave" structure that matches the slider (2). The slider (2) slides or rotates within the concave arc surface of the slider seat (3), driving the suspension rod (1) to slide or swing on the slider group.

2. The boom swing mechanism for a vibrating conveyor according to claim 1, characterized in that: The slider (2) comprises a straight portion (21) and a raised portion (22), wherein a flat side of the raised portion (22) is connected to the straight portion (21), and a raised arc side of the raised portion (22) is connected to the slider seat (3).

3. The boom swing mechanism for a vibrating conveyor according to claim 2, characterized in that: The straight portion (21) and the recessed portion (31) are respectively provided with screw holes, and screws are installed in the screw holes to connect the straight portion (21) and the recessed portion (31).

4. The boom swing mechanism for a vibrating conveyor according to claim 2, wherein: The slider seat (3) comprises a recessed portion (31) and a base (32); the recessed portion (31) is arranged on the base (32) and contacts the raised portion (22) through one side of the recessed arc surface of the recessed portion (31).

5. The boom swing mechanism for a vibrating conveyor according to claim 4, characterized in that: The curvature of the recessed portion (31) is greater than or equal to the curvature of the raised portion (22), which facilitates the raised portion (22) to slide or rotate on the recessed portion (31).

6. The boom swing mechanism for a vibrating conveyor according to claim 4, characterized in that: The suspension rod (1) comprises a first suspension rod (11) and a second suspension rod (12) symmetrically arranged on both sides of the central axis of the raised portion (22) and the recessed portion (31).

7. The boom swing mechanism for a vibrating conveyor according to claim 6, characterized in that: The center distance between the first suspension rod (11) and the second suspension rod (12) is at least three times the diameter of the suspension rod (1).

8. The boom swing mechanism for a vibrating conveyor according to claim 6, wherein: The cross-sectional shape of the recessed portion (31) is an "I" shape, and the first suspension rod (11) and the second suspension rod (12) are arranged on both sides of the recessed portion in the X direction of the "I" shape.

9. The boom swing mechanism for a vibrating conveyor according to claim 1, wherein: The nut (4) is a non-standard nut.

10. The boom swing mechanism for a vibrating conveyor according to claim 1, wherein: The suspension rod (1) is locked and pre-tightened by the nut (4) with a pre-tightening force of 60% to 70% of the yield strength of the suspension rod (1).

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