A high manganese steel wear-resistant reinforcing structure of a shakeout plate of a vibrating shakeout machine
Patent Information
- Application Number
- CN202522604216.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-12-09
- Publication Date
- 2026-10-30
- Estimated Expiration
- 2035-12-09
AI Technical Summary
[0003]有鉴于此，本实用新型提供的一种振动落砂机落砂板的高锰钢耐磨加强结构，解决了振动落砂机落砂板在高频冲击和摩擦下磨损快、易变形开裂，导致寿命短、效率低的问题
[0022]进一步的，所述高锰钢耐磨层的边缘与落砂板本体的上表面边缘之间保持间隙，所述间隙的宽度小于高锰钢耐磨层中心位置厚度的两倍。
Smart Images
Figure CN224913560U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of vibratory sand removal machines, specifically, it relates to a high manganese steel wear-resistant reinforced structure for the sand removal plate of a vibratory sand removal machine. Background Technology
[0002] Vibratory shakeout machines are crucial equipment in foundry production lines, primarily used to separate castings from sand molds. Their working principle involves generating high-frequency vibrations through a vibrating device, causing the sand mold to be periodically impacted and broken on the shakeout plate. The sand and castings separate under the vibration and fall from the shakeout plate to the next process. During this process, the shakeout plate, as the component directly bearing the impact and friction of the sand, operates under extremely harsh conditions, needing to withstand high-frequency impact loads and intense friction between the sand and the plate surface. After prolonged use, the surface of the shakeout plate will experience severe wear. Currently, most shakeout plates used in foundries are made of ordinary carbon steel or manganese steel plates, which, while possessing certain strength and toughness, have limited wear resistance. Under repeated impact and friction from the sand, wear pits and grooves quickly appear on the surface of the shakeout plate. Increased surface roughness affects the normal flow of sand, reduces shakeout efficiency, and severely worn shakeout plates may even develop perforations. Some companies have attempted to improve wear resistance by welding a wear-resistant layer onto the surface of the sandblasting plate. However, the bonding strength between the weld layer and the substrate is often insufficient, making it prone to peeling under vibration and impact loads. Furthermore, the high heat input during the welding process can easily cause deformation of the sandblasting plate. Other companies use integral high-manganese steel to cast the sandblasting plate. Although the wear resistance is improved, the casting process of high-manganese steel is complex and costly. Moreover, integrally cast sandblasting plates are heavy and have uneven stiffness distribution, making them prone to local resonance during vibration, which can lead to fatigue cracks. Utility Model Content
[0003] In view of this, the present invention provides a high manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine, which solves the problems of rapid wear, easy deformation and cracking of the sand removal plate under high-frequency impact and friction, resulting in short service life and low efficiency.
[0004] This utility model is implemented as follows:
[0005] This utility model provides a high manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine, including a sand removal plate body and a high manganese steel wear-resistant layer. The upper surface of the sand removal plate body is used to receive the sand material falling under vibration. The high manganese steel wear-resistant layer is fixed to the upper surface of the sand removal plate body. The high manganese steel wear-resistant layer has a plate-like structure and is attached to the upper surface of the sand removal plate body. The lower surface of the high manganese steel wear-resistant layer is connected to the upper surface of the sand removal plate body by welding. A reinforcing rib is provided on the lower surface of the sand removal plate body. The reinforcing rib extends along the length direction of the sand removal plate body and is perpendicularly connected to the lower surface of the sand removal plate body.
[0006] The technical effects of the high-manganese steel wear-resistant reinforced structure of the sand removal plate of the vibrating sand removal machine provided by this utility model are as follows: By setting a high-manganese steel wear-resistant layer on the upper surface of the sand removal plate body and connecting the lower surface of the high-manganese steel wear-resistant layer to the upper surface of the sand removal plate body by welding, the high-manganese steel wear-resistant layer and the sand removal plate body form a solid integral structure. Utilizing the excellent wear resistance and work hardening characteristics of high-manganese steel, it effectively resists the wear caused by repeated impact and friction of sand. At the same time, a reinforcing rib extending along the length direction is set on the lower surface of the sand removal plate body. Through the vertical connection of the reinforcing rib to the lower surface of the sand removal plate body, the overall rigidity and bending resistance of the sand removal plate body are enhanced, preventing the sand removal plate from deforming or fatigue damage when subjected to vibration and impact, and extending the service life of the sand removal plate.
[0007] Based on the above technical solution, the high-manganese steel wear-resistant reinforced structure of the sand removal plate of the vibrating sand removal machine of this utility model can be further improved as follows:
[0008] The thickness of the high-manganese steel wear-resistant layer gradually decreases from the center to both sides along the width direction of the sand-drop plate body.
[0009] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By designing the thickness of the high manganese steel wear-resistant layer to gradually decrease from the center to both sides along the width direction of the sand drop plate, the material distribution of the high manganese steel wear-resistant layer matches the distribution of sand impact loads borne by the sand drop plate in actual operation. This is because the sand mainly concentrates in the central area of the sand drop plate during vibration and falling, and this area suffers the most severe wear. By increasing the thickness of the high manganese steel wear-resistant layer in the central area, stronger wear protection is provided, while the wear in the two sides is relatively lighter, so the thickness is reduced. This design not only ensures the wear resistance of key areas but also reduces the overall weight and saves the cost of high manganese steel materials.
[0010] Furthermore, the upper surface of the high manganese steel wear-resistant layer is provided with multiple raised stripes, which extend along the length direction of the sand-drop plate body and are distributed parallel to each other.
[0011] The beneficial effects of the above-mentioned improvement scheme are as follows: Multiple raised stripes extending along the length of the sand drop plate and distributed parallel to each other are set on the upper surface of the high manganese steel wear-resistant layer. When the sand falls onto the surface of the high manganese steel wear-resistant layer under vibration, the raised stripes guide the movement trajectory of the sand, causing the sand to move in an orderly manner along the extension direction of the raised stripes, reducing the irregular sliding and collision of the sand on the surface of the sand drop plate, reducing the relative sliding speed between the sand and the surface of the high manganese steel wear-resistant layer, thereby reducing the degree of wear. At the same time, the raised stripes increase the contact area between the high manganese steel wear-resistant layer and the sand, dispersing the impact force per unit area, and further improving the wear resistance effect.
[0012] Furthermore, the cross-section of the raised stripes is trapezoidal, and the width of the upper base of the trapezoidal structure is smaller than the width of the lower base.
[0013] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: designing the cross-section of the raised stripes as a trapezoidal structure with the upper base width being smaller than the lower base width gives the raised stripes stable bottom support and an appropriate top width. The larger bottom width of the trapezoidal structure can enhance the connection strength between the raised stripes and the high manganese steel wear-resistant layer, preventing the raised stripes from breaking or falling off when subjected to long-term sand impact. The smaller upper base width of the trapezoidal structure facilitates the smooth passage of sand in the valleys between the raised stripes, avoiding sand accumulation and causing local overload. At the same time, the sloping side of the trapezoidal structure can generate a guiding force on the sand, causing the sand to move in the set direction and improving the sand falling efficiency.
[0014] Furthermore, the reinforcing rib has a wavy structure, with the crests and troughs of the wavy structure alternately distributed along the length of the sand-falling plate body.
[0015] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By designing the reinforcing ribs into a wave-shaped structure with alternating crests and troughs along the length of the sand-dropping plate, compared with the traditional straight reinforcing ribs, the wave-shaped structure has a larger moment of inertia and better bending stiffness. Under the condition of the same material usage, it can provide stronger support and resistance to deformation. When the sand-dropping plate is subjected to periodic impact loads during vibration, the wave-shaped reinforcing ribs can more effectively absorb and disperse vibration energy, reduce the amplitude of the sand-dropping plate, and prevent the sand-dropping plate from developing fatigue cracks due to resonance. At the same time, the wave-shaped structure also enhances the stability of the reinforcing ribs themselves, avoiding failure of the reinforcing ribs due to buckling instability.
[0016] Furthermore, the edge portion of the sand-dropping plate body is bent downward to form a edging structure, and the edging structure forms an obtuse angle with the upper surface of the sand-dropping plate body.
[0017] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: A downwardly bent edge structure is set on the edge of the sand drop plate body, and the edge structure forms an obtuse angle with the upper surface of the sand drop plate body. This edge structure can effectively enhance the strength and rigidity of the edge of the sand drop plate body, and prevent the edge from deforming or curling during the lateral impact of sand or during transportation. The obtuse angle design gives the edge structure a suitable transition angle, which ensures the edge strength and avoids stress concentration caused by sharp corners. At the same time, the edge structure also plays a limiting role, preventing sand from overflowing from the edge of the sand drop plate, improving the sand collection efficiency, and the bent part of the edge structure increases the overall rigidity of the sand drop plate body.
[0018] Furthermore, the sand-dropping plate body is provided with connecting bosses at the four corners, the connecting bosses protruding downward from the lower surface of the sand-dropping plate body, and bolt through holes are provided on the connecting bosses.
[0019] The beneficial effects of the above-mentioned improvement scheme are as follows: connecting bosses protruding downward from the lower surface are set at the four corners of the sand-falling plate body, and bolt through holes are opened on the connecting bosses. By setting the connecting bosses at the four corners, the geometric characteristics of the sand-falling plate body are fully utilized to achieve stable four-point support and connection. The structure of the connecting bosses protruding downward from the lower surface of the sand-falling plate body ensures that the bolt connection point is kept at a distance from the working surface of the sand-falling plate body, avoiding interference between the bolt connection part and the upper surface of the sand-falling plate. At the same time, the protruding design of the connecting bosses facilitates the installation and disassembly of bolts. The setting of bolt through holes ensures reliable fixation of the sand-falling plate and the frame of the vibrating sand-falling machine, ensuring that the sand-falling plate does not loosen or shift during vibrating operation.
[0020] Furthermore, the edges of the high-manganese steel wear-resistant layer have a chamfered structure, which makes the upper surface edge and side edge of the high-manganese steel wear-resistant layer transition smoothly.
[0021] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: designing the edge of the high manganese steel wear-resistant layer as a chamfered structure allows for a smooth transition between the upper surface edge and the side edge of the high manganese steel wear-resistant layer, eliminating stress concentration that may occur due to sharp edges. When the high manganese steel wear-resistant layer is subjected to thermal stress during welding or stress due to impact loads during use, the chamfered structure can distribute the stress evenly along the smooth transition surface, reducing the risk of cracks at the edge. At the same time, the chamfered structure can also reduce the impact force when sand collides with the edge of the high manganese steel wear-resistant layer, preventing edge chipping or peeling. Furthermore, the smooth chamfered structure facilitates the smooth sliding of sand from the surface of the high manganese steel wear-resistant layer, preventing sand blockage caused by sharp edges.
[0022] Furthermore, a gap is maintained between the edge of the high manganese steel wear-resistant layer and the upper surface edge of the sand-drop plate body, and the width of the gap is less than twice the thickness of the high manganese steel wear-resistant layer at its center.
[0023] The beneficial effects of adopting the above-mentioned improved scheme are as follows: By maintaining a gap between the edge of the high manganese steel wear-resistant layer and the upper surface edge of the sand-drop plate body, and limiting the width of the gap to less than twice the thickness of the center position of the high manganese steel wear-resistant layer, this gap design provides space for the stress generated by thermal expansion of the high manganese steel wear-resistant layer during welding, avoiding warping deformation or excessive internal stress caused by excessive edge constraint. At the same time, the limitation of the gap width ensures that the high manganese steel wear-resistant layer and the edge of the sand-drop plate body maintain an appropriate distance, so that the overall integrity of the sand-drop plate is not weakened due to the gap being too large, nor is the stress release function lost due to the gap being too small. This dimensional relationship design optimizes the welding process performance while ensuring structural reliability.
[0024] Furthermore, the number of reinforcing ribs is three, and the three reinforcing ribs are evenly distributed on the lower surface of the sand-drop plate body along the width direction of the sand-drop plate body. The sand-drop plate body is made of carbon structural steel, and the high manganese steel wear-resistant layer is made of high manganese steel material.
[0025] The beneficial effects of adopting the above-mentioned improvement scheme are as follows: By distributing three reinforcing ribs at equal intervals along the width of the sand-dropping plate body on the lower surface of the sand-dropping plate body, uniform support and reinforcement of the sand-dropping plate body are achieved. The number of three reinforcing ribs can avoid the structural complexity and weight increase caused by too many reinforcing ribs while ensuring sufficient support rigidity. The equal interval distribution ensures that each area of the sand-dropping plate body receives balanced support force, preventing local stress concentration or deformation caused by uneven support. At the same time, the use of carbon structural steel to manufacture the sand-dropping plate body ensures that the substrate has good strength and toughness, and the use of high manganese steel to manufacture the high manganese steel wear-resistant layer fully utilizes the high wear resistance and work hardening characteristics of high manganese steel. The reasonable combination of the two materials achieves a balance between performance optimization and cost control.
[0026] Compared with existing technologies, the beneficial effects of the high-manganese steel wear-resistant reinforced structure of the vibratory sand removal machine's sand removal plate provided by this utility model are as follows: This utility model welds and fixes a high-manganese steel wear-resistant layer to the upper surface of the sand removal plate body, fully utilizing the work-hardening characteristics of high-manganese steel under impact loads. This allows the surface hardness of the high-manganese steel wear-resistant layer to continuously increase when subjected to repeated impacts from sand, thus forming a hard, wear-resistant surface. This significantly enhances the sand removal plate's resistance to wear. Compared to sand removal plates made of ordinary steel, the service life of this utility model is significantly extended, reducing replacement frequency and maintenance costs. By setting raised stripes extending along the length direction on the upper surface of the high-manganese steel wear-resistant layer, the movement trajectory of the sand is guided, reducing disordered sliding of sand on the sand removal plate surface, lowering the wear rate while improving sand removal efficiency. By setting corrugated reinforcing ribs on the lower surface of the sand removal plate body, the overall rigidity and vibration resistance of the sand removal plate are significantly enhanced, effectively suppressing deformation and resonance phenomena during vibration and preventing fatigue cracks. By optimizing the thickness distribution of the high-manganese steel wear-resistant layer, the edge chamfering design, and the gap configuration between the layer and the edge of the sand-falling plate, the material is utilized rationally and stress is effectively released, avoiding edge cracking or peeling caused by stress concentration. This invention features a reasonable structural design, simple processing technology, and is easy to mass-produce and install and maintain on-site. It offers good economic efficiency and practicality, meeting the casting industry's requirements for high reliability and long service life of vibrating sand-falling equipment. Attached Figure Description
[0027] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0028] Figure 1 An example diagram of a high-manganese steel wear-resistant reinforced structure for a vibratory sand removal machine's sand removal plate;
[0029] Figure 2 A bottom view of a high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine;
[0030] Figure 3 A side view of a high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine;
[0031] The attached diagram lists the components represented by each number as follows:
[0032] 10. Sand-drop plate body; 11. Reinforcing rib plate; 12. Edge-binding structure; 20. High manganese steel wear-resistant layer. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.
[0034] like Figures 1-3 The diagram shows an example of a high-manganese steel wear-resistant reinforced structure for a vibratory sand removal machine's sand removal plate provided by this utility model. It includes a sand removal plate body 10 and a high-manganese steel wear-resistant layer 20. The upper surface of the sand removal plate body 10 is used to receive the sand material falling under vibration. The high-manganese steel wear-resistant layer 20 is fixed to the upper surface of the sand removal plate body 10. The high-manganese steel wear-resistant layer 20 has a plate-like structure and is attached to the upper surface of the sand removal plate body 10. The lower surface of the high-manganese steel wear-resistant layer 20 is connected to the upper surface of the sand removal plate body 10 by welding. A reinforcing rib 11 is provided on the lower surface of the sand removal plate body 10. The reinforcing rib 11 extends along the length of the sand removal plate body 10 and is perpendicularly connected to the lower surface of the sand removal plate body 10.
[0035] The specific operation or use method is as follows: First, fix the sand-falling plate of the vibrating sand-falling machine to the frame of the vibrating sand-falling machine through the bolt through holes on the connecting boss, ensuring that the upper surface of the sand-falling plate body is in a horizontal state and the four corners are firmly connected without loosening. During the installation process, pay attention to checking whether the surface of the high manganese steel wear-resistant layer is intact and whether the raised stripes are intact. After the installation is completed, start the vibration device of the vibrating sand-falling machine to put the sand-falling plate into the vibration working state. Place the sand mold containing the casting on the upper surface of the high manganese steel wear-resistant layer of the sand-falling plate. Under the action of vibration, the sand mold is subjected to periodic impact and gradually breaks. The sand moves in an orderly manner under the guidance of the raised stripes on the surface of the high manganese steel wear-resistant layer and falls from the edge of the sand-falling plate, effectively separating the casting from the sand. During use, the high manganese steel wear-resistant layer withstands the impact and friction of the sand, and the surface gradually undergoes work hardening to form a hard wear-resistant layer, effectively resisting wear. The reinforcing ribs continuously provide support, maintaining the flatness and stability of the sand-falling plate. Regularly inspect the wear condition of the sand drop plate surface, observe whether there is excessive wear or cracks in the high manganese steel wear-resistant layer, check whether the connection between the reinforcing rib plate and the sand drop plate body is loose or cracked, check whether the connecting boss and bolt connection are firm, clean up the sand residue accumulated on the surface of the sand drop plate in time, maintain the clarity of the raised stripes, and ensure the guiding effect.
[0036] In the above technical solution, the thickness of the high manganese steel wear-resistant layer 20 gradually decreases from the center to both sides along the width direction of the sand-drop plate body 10.
[0037] Furthermore, in the above technical solution, the upper surface of the high manganese steel wear-resistant layer 20 is provided with multiple raised stripes, which extend along the length direction of the sand-drop plate body 10 and are distributed parallel to each other.
[0038] Furthermore, in the above technical solution, the cross-section of the raised stripes is trapezoidal, and the width of the upper base of the trapezoidal structure is smaller than the width of the lower base.
[0039] Furthermore, in the above technical solution, the reinforcing rib 11 has a wave-shaped structure, and the crests and troughs of the wave-shaped structure are alternately distributed along the length of the sand-falling plate body 10.
[0040] Furthermore, in the above technical solution, the edge portion of the sand-dropping plate body 10 is bent downward to form an edge-wrapping structure 12, and the edge-wrapping structure 12 forms an obtuse angle with the upper surface of the sand-dropping plate body 10.
[0041] Furthermore, in the above technical solution, connecting bosses are provided at the four corners of the sand-falling plate body 10. The connecting bosses protrude downward from the lower surface of the sand-falling plate body 10, and bolt through holes are provided on the connecting bosses.
[0042] Furthermore, in the above technical solution, the edge of the high manganese steel wear-resistant layer 20 has a chamfered structure, which makes the upper surface edge and the side edge of the high manganese steel wear-resistant layer 20 transition smoothly.
[0043] Furthermore, in the above technical solution, a gap is maintained between the edge of the high manganese steel wear-resistant layer 20 and the edge of the upper surface of the sand-drop plate body 10, and the width of the gap is less than twice the thickness of the center position of the high manganese steel wear-resistant layer 20.
[0044] Furthermore, in the above technical solution, there are three reinforcing ribs 11. The three reinforcing ribs 11 are evenly distributed on the lower surface of the sand drop plate body 10 along the width direction of the sand drop plate body 10. The sand drop plate body 10 is made of carbon structural steel, and the high manganese steel wear-resistant layer 20 is made of high manganese steel material.
[0045] Specific Embodiment 1: The high-manganese steel wear-resistant reinforced structure of the vibratory sand removal machine's sand removal plate in this embodiment is made of Q235 carbon structural steel plate. The overall dimensions of the sand removal plate body are 1200mm in length, 800mm in width, and 12mm in base thickness. The sand removal plate body has a rectangular plate structure with a flat upper surface to receive the sand mold and sand material transmitted from the vibration mechanism. The high-manganese steel wear-resistant layer is made of ZGMn13 high-manganese steel material. The planar dimensions of the high-manganese steel wear-resistant layer are 1160mm in length and 760mm in width, which are 20mm smaller than the planar dimensions of the sand removal plate body in both length and width directions. The thickness of the high-manganese steel wear-resistant layer is 25mm at the center of the width direction of the sand removal plate body, gradually thinning to 15mm at the edge, with a linear transition in thickness. The upper surface of the high-manganese steel wear-resistant layer has seven raised stripes evenly distributed along its length. The spacing between adjacent raised stripes is 95mm, and the height of each raised stripe is 8mm. The cross-section of each raised stripe is trapezoidal, with an upper base width of 12mm and a lower base width of 24mm. The angle between the hypotenuses of the trapezoid and the horizontal plane is 60 degrees. The high-manganese steel wear-resistant layer is fixed to the upper surface of the sand-drop plate body by submerged arc welding. The welding process employs multiple layers and multiple passes, using welding rods compatible with high-manganese steel. After welding, the high-manganese steel wear-resistant layer and the sand-drop plate body form a strong metallurgical bond. The edges of the high-manganese steel wear-resistant layer are chamfered by machining at a 45-degree angle with a chamfer width of 3mm, ensuring a smooth transition between the upper surface edge and the side edges. Three reinforcing ribs are welded along the length of the lower surface of the sand-falling plate body. These ribs are made of Q235 carbon structural steel and are evenly spaced along the width of the sand-falling plate body. The center-to-center distance between adjacent ribs is 200mm. The height and thickness of each rib are 80mm. The ribs have a wavy structure with a wavelength of 150mm. The peak height is 15mm above the average height line of the ribs, and the trough depth is 15mm below the average height line. The ribs are vertically connected to the lower surface of the sand-falling plate body via fillet welds. Connecting bosses are formed by stamping downwards at the four corners of the sand-falling plate body. These bosses protrude 30mm downwards from the lower surface of the sand-falling plate body and are cylindrical with an outer diameter of 60mm. A bolt through-hole with a diameter of 18mm is drilled at the center of each boss for installing M16 bolts to connect and fix it to the frame of the vibrating sand-falling machine. The four edges of the sand-dropping plate are bent downwards at 90 degrees and then bent inwards at 30 degrees to form an edge-wrapping structure. The vertical section of the edge-wrapping structure is 25mm high, the inward fold section is 15mm long, and the angle between the edge-wrapping structure and the upper surface of the sand-dropping plate is 120 degrees.In this embodiment, the high-manganese steel wear-resistant layer directly bears the impact of the sand. Under the impact, the surface hardness gradually increases from the initial HB200 to over HB500, forming a hard and wear-resistant surface. The raised stripes guide the sand, allowing it to move in an orderly manner along a set direction. The wave-shaped structure of the reinforcing ribs provides sufficient support rigidity. The sand drop plate remains flat and undeformed under long-term vibration and impact, and its service life is more than 5 times that of ordinary sand drop plates.
[0046] Specific Example 2: This Example 2 improves and optimizes the raised stripe structure of the high-manganese steel wear-resistant layer based on Example 1. The number of raised stripes is increased to 9, the spacing between adjacent raised stripes is reduced to 76mm, the height of the raised stripes is adjusted to 10mm, the upper base width of the trapezoidal cross-section of the raised stripes is adjusted to 10mm, the lower base width is adjusted to 28mm, and the angle between the two hypotenuses of the trapezoid and the horizontal plane is adjusted to 65 degrees. This improvement makes the guiding effect of the raised stripes on the sand more significant, further shortening the sliding distance of the sand on the sand drop plate surface and reducing the degree of wear. At the same time, the thickness of the high-manganese steel wear-resistant layer at the center is increased to 30mm, while the thickness at the edge remains unchanged at 15mm. The increased thickness difference makes the focus of wear protection more prominent, and the wear resistance of the central area is further improved. Regarding the stiffening rib structure, the wave wavelength is shortened to 120mm, and the wave crest rise height and wave trough fall depth are both adjusted to 18mm, enhancing the bending stiffness and vibration resistance of the stiffening rib. The natural frequency of the sand-falling plate is increased, better avoiding the working frequency range of the vibrating sand-falling machine and reducing the risk of resonance.
[0047] Specifically, the principle of this utility model is as follows: This utility model adopts a composite structural design concept, dividing the sand-falling plate into two layers: a load-bearing layer and a wear-resistant layer. The main body of the sand-falling plate is made of carbon structural steel, which undertakes the main load-bearing and support functions, while a high-manganese steel wear-resistant layer is welded to the upper surface, which bears the wear, to specifically undertake the wear-resistant function. This functional separation design ensures both structural strength and optimizes wear resistance. High-manganese steel has unique work-hardening characteristics. At room temperature, its microstructure is single-phase austenite, with relatively low hardness, making it easy to process. However, when subjected to impact loads, the surface austenite microstructure undergoes a martensitic phase transformation, and the hardness increases sharply, forming a hard surface layer. With the increase of impact cycles, the hardened layer deepens continuously, and the wear resistance continues to improve. This characteristic is very suitable for the working conditions of vibrating sand-falling machines. By welding the high-manganese steel wear-resistant layer to the main body of the sand-falling plate, a more reliable bonding strength can be obtained compared to overlay welding. The welding process controls appropriate heat input and welding sequence to avoid excessive welding stress and deformation. Raised stripes are set on the upper surface of the high-manganese steel wear-resistant layer. The guiding effect of these stripes alters the movement of the sand, transforming disordered sliding friction into relatively ordered rolling friction, thus reducing the coefficient of friction and wear rate. A design with varying thickness along the width ensures that the material distribution matches the actual load distribution, providing ample protection in key wear areas while reducing overall weight. Corrugated reinforcing ribs are installed on the lower surface of the sand-dropping plate. Compared to straight ribs, the corrugated structure has greater bending stiffness, effectively increasing the natural frequency of the sand-dropping plate and keeping it away from the operating frequency of the vibrating sand-dropping machine, thus avoiding resonance and enhancing fatigue resistance.
Claims
1. A high-manganese steel wear-resistant reinforced structure for a vibrating sand removal machine's sand removal plate, comprising a sand removal plate body and a high-manganese steel wear-resistant layer, wherein the upper surface of the sand removal plate body is used to receive sand material vibrating and falling, characterized in that, A high-manganese steel wear-resistant layer is fixed to the upper surface of the sand-drop plate body. The high-manganese steel wear-resistant layer has a plate-like structure and is attached to the upper surface of the sand-drop plate body. The lower surface of the high-manganese steel wear-resistant layer is connected to the upper surface of the sand-drop plate body by welding. A reinforcing rib is provided on the lower surface of the sand-drop plate body. The reinforcing rib extends along the length of the sand-drop plate body and is perpendicularly connected to the lower surface of the sand-drop plate body.
2. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 1, characterized in that, The thickness of the high-manganese steel wear-resistant layer gradually decreases from the center to both sides along the width direction of the sand-dropping plate body.
3. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 2, characterized in that, The upper surface of the high manganese steel wear-resistant layer is provided with multiple raised stripes, which extend along the length of the sand-drop plate body and are distributed parallel to each other.
4. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 3, characterized in that, The cross-section of the raised stripes is trapezoidal, and the width of the upper base of the trapezoidal structure is smaller than the width of the lower base.
5. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 4, characterized in that, The reinforcing rib has a wave-shaped structure, and the crests and troughs of the wave-shaped structure are alternately distributed along the length of the sand-falling plate body.
6. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 5, characterized in that, The edge portion of the sand-dropping plate body is bent downward to form a edging structure, and the edging structure forms an obtuse angle with the upper surface of the sand-dropping plate body.
7. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 6, characterized in that, The sand-dropping plate body has connecting bosses at its four corners. The connecting bosses protrude downward from the lower surface of the sand-dropping plate body and have bolt through holes.
8. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 7, characterized in that, The edges of the high-manganese steel wear-resistant layer are chamfered, which makes the upper surface edge and side edge of the high-manganese steel wear-resistant layer transition smoothly.
9. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 8, characterized in that, A gap is maintained between the edge of the high manganese steel wear-resistant layer and the upper surface edge of the sand-drop plate body, and the width of the gap is less than twice the thickness of the high manganese steel wear-resistant layer at its center.
10. The high-manganese steel wear-resistant reinforced structure for the sand removal plate of a vibrating sand removal machine according to claim 9, characterized in that, The number of reinforcing ribs is three, and the three reinforcing ribs are evenly distributed on the lower surface of the sand-drop plate body along the width direction of the sand-drop plate body. The sand-drop plate body is made of carbon structural steel, and the high manganese steel wear-resistant layer is made of high manganese steel material.