Rare earth wear-resistant lining plate

Abstract

The utility model discloses a rare earth wear-resistant lining plate, and relates to the technical field of lining plates. The lining plate comprises a lining plate body, one side of the lining plate body is relatively and fixedly connected with at least two racks, one side, opposite to the racks, of the lining plate body is concavely provided with an insertion groove, a positioning assembly for positioning the racks is arranged in the insertion groove, the positioning assembly comprises a gear, the gear is rotationally arranged in the lining plate body through a first rotating shaft, and the gear can be meshed with the racks. The first rotating shaft is sleeved and fixedly provided with a ratchet wheel and a pawl, the first rotating shaft is rotationally arranged in the lining plate body through a second rotating shaft, the pawl abuts against the ratchet wheel, a spring abutting against the ratchet wheel is fixedly installed in the lining plate body, and the control end of the second rotating shaft extends out of the lining plate body. Rapid assembly and disassembly of the lining plate are achieved through the positioning assembly, welding or bolt fixing is not needed, and the installation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of lining plates, specifically, it relates to a rare earth wear-resistant lining plate. Background Technology

[0002] Rare earth liners are wear-resistant components made by combining rare earth elements as key additives with steel, alloys and other base materials through processes such as casting, rolling or coating. They are mainly used in parts of industrial equipment that are susceptible to wear and impact, and play a role in protecting the base material and extending the service life of the equipment. However, existing wear-resistant liners have poor impact resistance and short service life.

[0003] Chinese patent publication number CN210891017U discloses a rare earth wear-resistant liner. This device can increase the service life and wear resistance of the liner body through the wear-resistant plate, increase the impact performance of the liner body through the rubber pad and damping protrusion, and increase the firmness of the liner body through the wire mesh to prevent the liner body from breaking during use. However, when installing adjacent liners, this device requires auxiliary fixing through other fixing structures after the fixing protrusion and fixing groove are connected, which increases the time for subsequent liner assembly and disassembly, thereby reducing the efficiency of liner assembly and disassembly.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a rare earth wear-resistant liner, which solves the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0007] A rare earth wear-resistant liner includes: a liner body with at least two racks fixedly connected to one side thereon; a slot is recessed in the side of the liner body opposite to the racks; the slot is provided with a positioning component for positioning the racks; the positioning component includes:

[0008] A gear is rotatably mounted in the liner body via a first rotating shaft. The gear can mesh with the rack. A ratchet is sleeved and fixedly installed on the first rotating shaft.

[0009] A pawl is rotatably mounted inside the liner body via a second rotating shaft. The pawl abuts against the ratchet. A spring that abuts against the ratchet is fixedly installed inside the liner body. The control end of the second rotating shaft extends to the outside of the liner body.

[0010] Optionally, the liner body is provided with a mounting groove for installing the positioning component, and the mounting groove is connected to the slot.

[0011] Optionally, the top of the liner body is coated with a wear-resistant coating.

[0012] Optionally, the top of the liner body is inlaid with a plurality of ceramic particles.

[0013] Optionally, the wear-resistant coating is a ceramic coating.

[0014] Optionally, the liner body includes a base layer, and a transition layer, a mesh layer, a wear-resistant block, and an impact-resistant layer that are sequentially fixed on top of the base layer.

[0015] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0016] 1. By setting up a positioning component, the liner can be quickly assembled and disassembled without welding or bolt fixing, improving installation efficiency. At the same time, the ratchet and pawl mechanism provides a one-way locking function to prevent the liner from loosening due to vibration or impact, and it can be reused to reduce maintenance costs.

[0017] 2. By incorporating a wear-resistant coating and ceramic particles, the wear-resistant coating, with its high hardness, high temperature resistance, and corrosion resistance, effectively resists abrasive wear and erosion wear. The ceramic particles reduce the contact area between the material and the liner, lowering the coefficient of friction. Together with the wear-resistant coating, they form a composite wear-resistant system.

[0018] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0019] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This utility model Figure 1 A structural diagram from another perspective;

[0022] Figure 3 This is a structural diagram of the connection between adjacent plates of this utility model;

[0023] Figure 4 This is a schematic diagram of the positioning component of this utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the liner body of this utility model.

[0025] The attached diagram lists the components represented by each number as follows:

[0026] 1. Liner body; 101. Mesh layer; 102. Impact-resistant layer; 103. Wear-resistant block; 104. Transition layer; 105. Base layer; 2. Ceramic particles; 3. Rack; 4. Slot; 5. Positioning assembly; 51. Gear; 52. First rotating shaft; 53. Ratchet; 54. Pad; 55. Second rotating shaft; 56. Spring; 6. Mounting hole; 7. Wear-resistant coating; 8. Mounting groove.

[0027] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings.

[0029] Please see Figure 1-5 As shown, this embodiment provides a rare earth wear-resistant liner, including a liner body 1, on one side of which at least two racks 3 are fixedly connected. A slot 4 is recessed on the side of the liner body 1 opposite to the racks 3. A positioning component 5 for positioning the racks 3 is provided in the slot 4. The positioning component 5 includes a gear 51, which is rotatably disposed in the liner body 1 via a first rotating shaft 52. The gear 51 can mesh with the racks 3. A ratchet 53 and a pawl 54 are sleeved and fixedly installed on the first rotating shaft 52. The ratchet 54 is rotatably disposed in the liner body 1 via a second rotating shaft 55. The pawl 54 abuts against the ratchet 53. A spring 56 that abuts against the ratchet 53 is fixedly installed in the liner body 1. The control end of the second rotating shaft 55 extends to the outside of the liner body 1.

[0030] Specifically, when adjacent liner bodies 1 are connected by inserting rack 3 into slot 4, rack 3 drives gear 51 to rotate. Gear 51 rotates synchronously with first rotating shaft 52, causing ratchet 53 to rotate. Pad 54, under the action of spring 56, keeps in contact with ratchet 53 to prevent ratchet 53 from rotating in the opposite direction, thereby locking rack 3. Similarly, when disassembling two sets of liner bodies 1, the second rotating shaft 55 can be controlled to disengage pad 54 from ratchet 53, unlocking the liner and enabling disassembly. The overall structure has simple and efficient operation steps, enabling rapid assembly and disassembly of the liner without welding or bolt fixing, improving installation efficiency. At the same time, the ratchet 53 and pad 54 mechanism provides a one-way locking function to prevent vibration or impact from causing the liner to loosen, and can be reused, reducing maintenance costs.

[0031] In this embodiment, as Figure 4 As shown, the liner body 1 is provided with a mounting groove 8 for mounting the positioning component 5, and the mounting groove 8 is connected to the slot 4.

[0032] In this embodiment, as Figure 5 As shown, the top of the liner body 1 is coated with a wear-resistant coating 7, which is a ceramic coating. Specifically, the ceramic coating (such as a WC-based coating) is formed by thermal spraying or chemical deposition. The coating has high hardness, high temperature resistance, and corrosion resistance, effectively resisting abrasive wear and erosion wear.

[0033] In this embodiment, as Figures 1 to 3 As shown, the top of the liner body 1 is inlaid with multiple ceramic particles 2. Specifically, the ceramic particles 2 have high hardness (such as Al2O3 ceramic, which can reach HV1800), which significantly improves local wear resistance. The particle distribution forms a "micro-protrusion" structure, which reduces the contact area between the material and the liner, reduces the coefficient of friction, and works synergistically with the wear-resistant coating 7 to form a composite wear-resistant system.

[0034] In this embodiment, as Figure 5 As shown, the liner body 1 includes a base layer 105, and a transition layer 104, a mesh layer 101, a wear-resistant block 103, and an impact-resistant layer 102, which are sequentially fixed on top of the base layer 105. Specifically, the base material can be medium-carbon multi-element low-alloy rare-earth wear-resistant steel or high-toughness high-chromium cast iron, which has been optimized by rare earth elements (such as lanthanum and cerium) to have basic wear resistance and toughness, provide supporting strength, and bear the overall load. The transition layer 104 can be made of nickel-based alloy and is prepared by plasma spraying or welding. Its function is to alleviate the thermal expansion between the rare-earth liner and the upper ceramic material. The number of differences reduces the risk of interface stress cracking; the mesh layer 101 is a mesh structure formed by welding wire, with a thickness of about 5-10mm, providing impact toughness; the wear-resistant block 103 can be made of ceramic particles 2 or high-chromium cast iron, which fills the through holes of the mesh layer 101, and its thickness matches the mesh height. The stacking method can be to alternately stack the mesh layer 101 and the wear-resistant block 103 by submerged arc welding. The impact-resistant layer 102 is made of the same material as the wear-resistant block 103. The multi-layer composite structure achieves complementary performance, taking into account both wear resistance and impact resistance. The gradient material design optimizes stress distribution and reduces the risk of interface cracking.

[0035] Working principle:

[0036] When adjacent liner bodies 1 are connected by inserting rack 3 into slot 4, rack 3 drives gear 51 to rotate. Gear 51 rotates synchronously with first rotating shaft 52, causing ratchet 53 to rotate. Pad 54, under the action of spring 56, keeps in contact with ratchet 53 to prevent ratchet 53 from rotating in the opposite direction, thereby locking rack 3. Similarly, when disassembling two sets of liner bodies 1, the second rotating shaft 55 can be controlled to disengage pad 54 from ratchet 53, unlocking the liner and enabling disassembly. The overall structure has simple and efficient operation steps, enabling rapid assembly and disassembly of the liner without welding or bolt fixing, improving installation efficiency. At the same time, the ratchet 53 and pad 54 mechanism provides a one-way locking function to prevent vibration or impact from causing the liner to loosen, and can be reused, reducing maintenance costs.

[0037] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A rare earth wear-resistant liner, characterized in that, include: A liner body (1) has at least two racks (3) fixedly connected to one side. A slot (4) is recessed in the liner body (1) on the side opposite the racks (3). A positioning component (5) for positioning the racks (3) is provided in the slot (4). The positioning component (5) includes: A gear (51) is rotatably disposed inside the liner body (1) via a first rotating shaft (52). The gear (51) can mesh with the rack (3). A ratchet (53) is sleeved and fixedly installed on the first rotating shaft (52). A pawl (54) is rotatably mounted inside the liner body (1) via a second rotating shaft (55). The pawl (54) abuts against the ratchet (53). A spring (56) is fixedly installed inside the liner body (1) to abut against the ratchet (53). The control end of the second rotating shaft (55) extends to the outside of the liner body (1).

2. The rare earth wear-resistant liner according to claim 1, characterized in that, The liner body (1) is provided with an installation groove (8) for installing the positioning component (5), and the installation groove (8) is connected to the slot (4).

3. The rare earth wear-resistant liner according to claim 2, characterized in that, The top of the liner body (1) is coated with a wear-resistant coating (7).

4. The rare earth wear-resistant liner according to claim 3, characterized in that, The top of the liner body (1) is inlaid with multiple ceramic particles (2).

5. A rare earth wear-resistant liner according to claim 4, characterized in that, The wear-resistant coating (7) is a ceramic coating.

6. The rare earth wear-resistant liner according to claim 1, characterized in that, The liner body (1) includes a base layer (105) and a transition layer (104), a mesh layer (101), a wear-resistant block (103) and an impact-resistant layer (102) that are sequentially fixed on top of the base layer (105).

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