Anvil ring for a vertical shaft impact crusher

Abstract

The application relates to an anvil ring of a vertical shaft impact crusher, and relates to the technical field of crusher equipment.The anvil ring comprises an anvil ring base, an anvil ring cover and an anvil ring body.The anvil ring base comprises a bottom ring and a side ring, the side ring is fixedly connected to the upper surface of the bottom ring, the anvil ring body is fixedly installed on the bottom ring and located on the inner side of the side ring, and the anvil ring cover is fixedly installed on the top of the anvil ring body.The anvil ring body comprises a plurality of layers of rings, all the layers of rings are sequentially stacked in the vertical direction, and the upper surface of a lower layer of rings and the lower surface of an upper layer of rings are attached and abutted between two adjacent layers of rings.The application has the effects of reducing material loss and replacement cost of the anvil ring and improving the maintenance efficiency of the anvil ring.

Description

Technical Field

[0001] This application relates to the field of crusher equipment technology, and in particular to an anvil ring for a vertical shaft impact crusher. Background Technology

[0002] Vertical shaft impact crushers are divided into two types: "stone-on-stone" and "stone-on-iron". The "stone-on-iron" type is achieved by configuring an anvil ring in the crusher. During operation, the stone is accelerated by the rotor in the crusher and then thrown out by centrifugal force, impacting the inner side of the anvil ring and rebounding. The stone is crushed through multiple impacts on the anvil ring and the collisions between the stones. The "stone-on-iron" type crusher has the advantage of high stone crushing efficiency.

[0003] However, traditional anvil rings are mostly integral wear-resistant components. The inner side of the anvil ring, in the middle vertical direction, experiences the highest frequency of impact from stones, resulting in the most severe impact wear. The upper and lower ends of the inner side of the anvil ring show less wear. This uneven wear means that the anvil ring needs to be replaced when less than 50% of the material is used, leading to high replacement costs and significant waste. Furthermore, the anvil ring is heavy, requiring lifting equipment for replacement, resulting in low maintenance efficiency and high costs. Summary of the Invention

[0004] In order to reduce the material wear and replacement cost of the anvil ring and improve the maintenance efficiency of the anvil ring, this application provides an anvil ring for a vertical shaft impact crusher.

[0005] The technical solution provided in this application for a vertical shaft impact crusher anvil ring is as follows: A vertical shaft impact crusher anvil ring includes an anvil ring seat, an anvil ring cover, and an anvil ring body. The anvil ring seat includes a bottom ring and a side ring. The side ring is fixedly connected to the upper surface of the bottom ring. The anvil ring body is fixedly installed on the bottom ring and located inside the side ring. The anvil ring cover is fixedly installed on the top of the anvil ring body. The anvil ring body includes several layers of rings. All the layers of rings are stacked sequentially in a vertical direction. Between two adjacent layers of rings, the upper surface of the lower layer of rings is in contact with and abuts against the lower surface of the upper layer of rings.

[0006] By adopting the above technical solution, the anvil ring body is divided into layers in the vertical direction, and the anvil ring seat and anvil ring cover provide support and constraint for the anvil ring body. Since the anvil ring wears most severely in the middle part, while the upper and lower layers wear less, in this application, the anvil ring body allows for the replacement of the severely worn middle layer rings individually without the need for complete scrapping, thereby significantly reducing material waste and replacement costs. In addition, the weight of a single layer ring is significantly reduced compared to the traditional integral anvil ring, making replacement operations unnecessary and eliminating the need for lifting equipment, thus improving maintenance efficiency and reducing operating costs.

[0007] Preferably, the layer ring includes a plurality of anvil ring blocks arranged sequentially along the circumferential direction. In each layer ring, the anvil ring blocks located at the same circumferential position are aligned in the vertical direction, and the vertically aligned anvil ring blocks together form a longitudinally continuous wear-resistant unit.

[0008] By adopting the above technical solution, each ring layer is divided into several anvil ring blocks arranged along the circumference, ensuring that the anvil ring blocks of the upper and lower layers are longitudinally aligned, achieving two optimizations: First, when the inner side of the anvil ring body wears at a certain local position on the circumference, the anvil ring block at that position can be directly replaced (such as a single block, a single row, or multiple rows), without replacing the entire ring layer, thereby further reducing material waste. The weight of a single anvil ring block is further reduced, and replacement can be done manually without the need for lifting equipment, greatly improving maintenance efficiency. In addition, the longitudinally aligned anvil ring blocks form a continuous stress-bearing structure, ensuring that the overall performance is not affected after a local replacement.

[0009] Preferably, inserts are provided between adjacent wear-resistant units; the sidewall of the wear-resistant unit facing one of the adjacent inserts is a first sidewall, which is attached to and abuts against one of the adjacent inserts; the sidewall of the wear-resistant unit facing the other adjacent insert is a second sidewall, which is attached to and abuts against the other adjacent insert.

[0010] By employing the above technical solution, inserts are used to fill the assembly gaps between adjacent wear-resistant units, reducing the vibration of the anvil ring block caused by stone impact. The double adhesion between the first and second sidewalls and the inserts forms a stable force transmission path, ensuring that adjacent wear-resistant units maintain synchronous force transmission under impact loads. The inserts, acting as an isolation medium, completely prevent direct contact between adjacent wear-resistant units (anvil ring blocks), thus improving the service life of the anvil ring blocks.

[0011] Preferably, a number of positioning pins are vertically arranged between the anvil ring cover and the bottom ring. Each positioning pin corresponds to one of the wear-resistant units. All anvil ring blocks in the wear-resistant unit have pin holes coaxially arranged in the vertical direction. The positioning pins pass through the pin holes of all anvil ring blocks in the corresponding wear-resistant unit and fit against the inner wall of each pin hole.

[0012] By adopting the above technical solution, each wear-resistant unit is fixed by an independent locating pin, ensuring the coaxiality of the pin holes of all anvil ring blocks in the same wear-resistant unit. All anvil ring blocks form an axially rigid connection, capable of withstanding impact loads without relative displacement. The locating pin connects the anvil ring cover, wear-resistant unit, and bottom ring into a whole, ensuring the positioning of the wear-resistant unit on the anvil ring seat. When replacing a single anvil ring block, the locating pin can serve as a guiding reference to ensure the alignment of the new block.

[0013] Preferably, the anvil ring cover is evenly divided into several plates in the circumferential direction, the number of plates being half the number of wear-resistant units. Each plate covers two adjacent sets of wear-resistant units, and the lower surface of the plate is in contact with and abuts against the upper surfaces of the two adjacent sets of wear-resistant units. The bottom of the positioning pin is fixedly connected to the bottom ring, and the top of the positioning pin passes through the corresponding plate and is connected to a nut by a thread. The nut presses against the upper surface of the plate.

[0014] By adopting the above technical solution, the number of partition plates is set to half the number of wear-resistant units, so that each partition plate covers two sets of adjacent wear-resistant units and is locked in place with locating pins and nuts. When it is necessary to replace a locally worn wear-resistant unit (or a certain anvil ring block in a wear-resistant unit), only the corresponding single partition plate needs to be removed to expose the two sets of wear-resistant units, without removing the entire anvil ring cover, thus reducing maintenance workload; secondly, only two nuts need to be loosened to disassemble the partition plate; and thirdly, the two sets of wear-resistant units are interconnected, improving the overall integrity between adjacent wear-resistant units.

[0015] Preferably, the anvil ring cover is an integrally formed annular plate, the top of the positioning pin penetrates through the anvil ring cover, the top of the positioning pin is integrally formed with a limiting screw head, the limiting screw head presses against the upper surface of the anvil ring cover, the bottom ring has an internal thread hole corresponding to each positioning pin, and the bottom of the positioning pin is threadedly connected to the internal thread hole.

[0016] By adopting the above technical solution, the two ends of the positioning pin are rigidly connected to the integral anvil ring cover and the integral bottom ring respectively, forming a closed-loop force frame, which improves the synergy of each wear-resistant unit and optimizes the assembly reliability.

[0017] Preferably, the first sidewall and the second sidewall of the anvil ring block are parallel to each other.

[0018] By adopting the above technical solution, since the first sidewall and the second sidewall are parallel to each other, when replacing a certain wear-resistant unit or an anvil ring block in a certain wear-resistant unit, it is only necessary to remove the positioning pin 5 corresponding to the wear-resistant unit, and then the anvil ring block can be directly pulled away along the radial direction of the anvil ring body. This eliminates the need to open the anvil ring cover, making it convenient and quick to replace the anvil ring block.

[0019] Preferably, the inner wall of the side ring is provided with a plurality of pre-installed plates along the circumferential direction, and the pre-installed plates correspond one-to-one with the wear-resistant units; a protrusion is fixedly provided on the side of the pre-installed plate away from the side ring, and a groove is opened vertically through the side of the anvil ring block near the side ring, the protrusion extending into the groove of all the anvil ring blocks in the corresponding wear-resistant unit, and the opposite side walls of the protrusion and the opposite side walls of the groove are parallel to the first side wall; the opposite side walls of the groove are opened vertically through the groove, and an insert is fixedly provided on the opposite side walls of the protrusion, the insert extending into the groove and abutting against the inner wall of the groove.

[0020] By adopting the above technical solution, when installing anvil ring blocks (or replacing a large number of anvil ring blocks), the anvil ring cover is removed (the positioning pin is not on the bottom ring), and the anvil ring block is slid vertically so that the groove fits onto the protrusion vertically, and the insert fits onto the insert vertically. This quickly and easily completes the fit between the protrusion and the groove, and between the insert and the groove. Since the opposite side walls on the groove and the opposite side walls on the protrusion are parallel to the first side wall, the groove and the protrusion do not affect the direct removal of the anvil ring block along the radial direction of the anvil ring body. However, since the insert and the groove are set on the parallel surfaces on the groove and the protrusion, and the insert extends into the groove, when the insert is in the groove, the anvil ring block cannot be directly removed along the radial direction of the anvil ring body. This helps to prevent the anvil ring blocks from moving when installing a large number of anvil ring blocks.

[0021] Preferably, the insert includes a plurality of spring pieces arranged sequentially in the vertical direction, each spring piece corresponding to a groove. Each spring piece has a protrusion bent into the groove, and the protrusion has a set of inclined surfaces with opposite inclination directions. The edge of the groove opening can abut against one of the inclined surfaces and drive the protrusion to deform away from the groove. The edge of the groove near the side ring can abut against the other inclined surface and drive the protrusion to deform away from the groove.

[0022] By adopting the above technical solution, the spring has deformable characteristics. When replacing a small number of anvil ring blocks, it is not necessary to open the anvil ring cover, remove the positioning pin corresponding to the severely worn anvil ring block, and then directly pull out the severely worn anvil ring block. During the process of pulling out the anvil ring block: the edge of the groove contacts one of the inclined surfaces of the spring's protrusion, forcing the protrusion to deform away from the groove. After deformation, the protrusion no longer hinders the movement of the anvil ring block, allowing the spring to smoothly disengage from the groove. Then, the new anvil ring block is pushed into the position of the original anvil ring block. During the process of pushing in the anvil ring block, the edge of the groove contacts the other inclined surface of the spring's protrusion, forcing the protrusion to deform away from the groove, allowing the anvil ring block to be smoothly inserted. After the anvil ring block moves into place, the protrusion on the spring automatically recovers its deformation and abuts against the groove, which also helps to adjust the position of the anvil ring block.

[0023] Preferably, a connecting block is fixedly provided on the side of the pre-installed plate facing the side ring, and a vertically downward extending insert is fixed at the bottom of the connecting block. Several insertion holes are opened at the top of the side ring, and the insertion holes correspond one-to-one. The insert is inserted into the corresponding insertion hole and fits against the inner wall of the insertion hole.

[0024] By adopting the above technical solution, when replacing a large number of complete sets of wear-resistant units, the anvil ring block can be installed on the pre-installation plate first, and then the pre-installation plate can be directly connected to the anvil ring seat through the cooperation of the plug rod and the plug, which facilitates the rapid replacement of a large number of complete sets of wear-resistant units.

[0025] In summary, this application includes at least one of the following beneficial technical effects: 1. By setting an anvil ring seat, anvil ring cover, anvil ring body, bottom ring, side ring, and layer rings, the anvil ring body can be layered in the vertical direction, allowing for the individual replacement of the severely worn middle layer ring, reducing material consumption and replacement costs. Moreover, the single layer ring is lightweight and can be replaced without lifting equipment, improving maintenance efficiency. 2. By setting anvil ring blocks, wear-resistant units, inserts, positioning pins, pin holes, and dividing plates, the layer ring is further divided into anvil ring blocks. When local wear occurs, a single block, a single row, or multiple rows of anvil ring blocks can be replaced, further reducing material consumption. Inserts reduce the vibration of the anvil ring blocks and extend their service life. Positioning pins ensure the positioning of the anvil ring blocks and axial rigid connection. Dividing plates reduce maintenance workload and improve the overall integrity of adjacent wear-resistant units. 3. By setting pre-installed plates, protrusions, grooves, slots, inserts, bulges, and inclined surfaces, when installing a large number of anvil ring blocks, the protrusions and grooves, and the inserts and slots can be quickly matched in the vertical direction to prevent the anvil ring blocks from moving. When replacing a small number of anvil ring blocks, the inclined surface of the spring protrusion can allow the insert to smoothly disengage or enter the slot, making it easy to directly disassemble or install the anvil ring blocks. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the structure of an anvil ring for a vertical shaft impact crusher provided in Embodiment 1 of this application.

[0027] Figure 2 This is an exploded view of the anvil ring of a vertical shaft impact crusher provided in Embodiment 1 of this application.

[0028] Figure 3 This is a schematic diagram of the structure of a single anvil ring block in Embodiment 1 of this application.

[0029] Figure 4 This is a schematic diagram of the structure of an anvil ring for a vertical shaft impact crusher provided in Embodiment 2 of this application.

[0030] Figure 5 This is an exploded view of the anvil ring of a vertical shaft impact crusher provided in Embodiment 2 of this application.

[0031] Figure 6 yes Figure 5 Enlarged view of part A in the middle.

[0032] Figure 7 This is a schematic diagram of the assembly structure of the wear-resistant unit and the pre-installed plate provided in Embodiment 2 of this application.

[0033] Figure 8 yes Figure 7 Enlarged view of part A in the middle.

[0034] Explanation of reference numerals in the attached drawings: 1. Anvil ring seat; 11. Bottom ring; 12. Side ring; 121. Insert; 2. Anvil ring cover; 21. Dividing plate; 31. Layer ring; 32. Wear-resistant unit; 33. Insert plate; 4. Anvil ring block; 41. First side wall; 42. Second side wall; 43. Pin hole; 44. Groove; 441. Insert groove; 5. Positioning pin; 51. Nut; 52. Limiting screw head; 6. Pre-installed plate; 61. Protrusion; 62. Insert; 621. Raised; 622. Inclined surface; 63. Connecting block; 631. Insert rod. Detailed Implementation

[0035] The following is in conjunction with the appendix Figure 1-8 This application will be described in further detail.

[0036] Example 1 Embodiment 1 of this application discloses an anvil ring for a vertical shaft impact crusher. (Refer to...) Figure 1 It includes an anvil ring seat 1, anvil ring cover 2, and anvil ring body. The anvil ring seat 1 is used to connect with the impact crusher when installing the integral anvil ring, and also to provide constraint and support for the anvil ring body. The anvil ring seat 1 includes a bottom ring 11 and a side ring 12. The bottom ring 11 is an annular plate, and the side ring 12 is an annular cylindrical tube. The axes of the bottom ring 11 and the side ring 12 coincide, and the side ring 12 is fixedly connected to the upper surface of the bottom ring 11.

[0037] Reference Figure 1 and Figure 2 The anvil ring body serves as the main body for withstanding stone impacts, and its inner wall has several inwardly protruding impact sections. The anvil ring body is fixedly mounted on the bottom ring 11 and located inside the side ring 12. The anvil ring cover 2 is fixedly mounted on the top of the anvil ring body. The inner diameter of the anvil ring cover 2 is smaller than the inner diameter of the anvil ring body, and the anvil ring cover 2 helps to prevent the stone from bouncing directly upwards after impacting the anvil ring body. The anvil ring body includes several layers of rings 31, preferably five to seven layers; in this embodiment, there are five layers of rings 31. All layers of rings 31 are stacked vertically, with the upper surface of the lower layer of ring 31 abutting against the lower surface of the upper layer of ring 31 between adjacent layers. By layering the anvil ring body vertically, it is possible to replace only the severely worn middle layers 31; generally, only 2-3 layers in the middle of the vertical direction need to be replaced, without the entire anvil ring body being scrapped.

[0038] To further reduce material loss in the maintenance anvil ring, refer to Figure 1 and Figure 2The layer ring 31 includes several anvil ring blocks 4 arranged sequentially along the circumference. In each layer ring 31, the anvil ring blocks 4 located at the same circumferential position are aligned vertically, and the vertically aligned anvil ring blocks 4 together form a longitudinally continuous wear-resistant unit 32. If the inner side of the anvil ring body is worn at a certain local position on the circumference, the anvil ring block 4 at that position can be directly replaced without replacing the entire layer ring 31, further reducing the material consumption of the maintenance anvil ring body. All anvil ring blocks 4 are made of high-chromium cast iron and have the same shape.

[0039] To reduce the vibration of the anvil ring block 4 and to isolate the adjacent wear-resistant unit 32, refer to Figure 2 and Figure 3 An insert 33 is inserted between adjacent wear-resistant units 32. The sidewall of the wear-resistant unit 32 facing one of the adjacent inserts 33 is a first sidewall 41, which is in contact with and abuts against the adjacent insert 33. The sidewall of the wear-resistant unit 32 facing the other adjacent insert 33 is a second sidewall 42, which is in contact with and abuts against the other adjacent insert 33. In this embodiment, the insert 33 is a vertically arranged thin metal sheet. The insert 33 is used to fill the assembly gap between adjacent wear-resistant units 32, reduce the vibration of the anvil ring block 4 caused by stone impact, and act as an isolation medium to block adjacent wear-resistant units 32.

[0040] To ensure the positioning accuracy and installation stability of the anvil ring block 4, refer to Figure 2 A number of locating pins 5 are vertically arranged between the anvil ring cover 2 and the bottom ring 11, and each locating pin 5 corresponds to a wear-resistant unit 32. All anvil ring blocks 4 in the wear-resistant unit 32 have pin holes 43 coaxially arranged in the vertical direction. The locating pins 5 pass through the pin holes 43 of all anvil ring blocks 4 in the corresponding wear-resistant unit 32 and fit against the inner wall of each pin hole 43. The locating pins 5 ensure the coaxiality of the pin holes 43 of all anvil ring blocks 4 in the same wear-resistant unit 32, and connect the anvil ring cover 2, the wear-resistant unit 32 and the bottom ring 11 into a whole, so that the anvil ring blocks 4 will not undergo relative displacement when subjected to impact load.

[0041] To reduce maintenance workload, refer to Figure 2The anvil ring cover 2 is evenly divided into several plates 21 in the circumferential direction, and the number of plates 21 is half the number of wear-resistant units 32. Each plate 21 covers two adjacent sets of wear-resistant units 32, and the lower surface of the plate 21 is in contact with and abuts against the upper surface of the two adjacent sets of wear-resistant units 32. The bottom of the positioning pin 5 is fixedly connected to the bottom ring 11. In this embodiment, the plate 21 has a through hole for the positioning pin 5 to pass through. The top of the positioning pin 5 passes through all the pin holes 43 in the corresponding wear-resistant unit 32 and the through hole on the plate 21 in sequence, and is connected to a nut 51 by thread. The nut 51 is pressed against the upper surface of the plate 21 by a washer. When it is necessary to replace a locally worn wear-resistant unit 32 or an anvil ring block 4, only a few nuts 51 need to be unscrewed and the corresponding single plate 21 needs to be removed to expose the two sets of wear-resistant units 32. It is not necessary to remove the entire anvil ring cover 2, thus reducing the amount of maintenance work.

[0042] The implementation principle of the anvil ring of a vertical shaft impact crusher in Embodiment 1 of this application is as follows: When the crusher is working, the stone material accelerated and thrown out by the rotor impacts the anvil ring body. The wear of the anvil ring body is mainly concentrated in the area of ​​frequent impact (especially in the middle area of ​​the anvil ring body in the vertical direction). When the middle part of the anvil ring block 4 in the vertical direction is severely worn, the middle 2-3 layers of the severely worn ring 31 can be replaced individually without scrapping the whole ring. When a part of the anvil ring block 4 is severely worn, only a few nuts 51 corresponding to the severely worn anvil ring block 4 need to be unscrewed, and the corresponding partition plate 21 needs to be removed to expose the wear-resistant unit 32 to be maintained. It is not necessary to remove the entire anvil ring cover 2, which reduces the amount of maintenance work and achieves the purpose of reducing material consumption and improving maintenance efficiency.

[0043] Example 2 The difference between Embodiment 2 and Embodiment 1 of this application is that: (Refer to...) Figure 4 The anvil ring cover 2 is an integrally formed annular plate. The anvil ring cover 2 has through holes for positioning pins. The top of the positioning pin 5 passes through all the pin holes 43 corresponding to the wear-resistant unit 32 and the through holes on the anvil ring cover 2, and is integrally formed with a limiting screw head 52. The limiting screw head 52 is pressed against the upper surface of the anvil ring cover 2 by a washer. The bottom ring 11 has internal threaded holes corresponding to each positioning pin 5, and the bottom of the positioning pin 5 is threadedly connected to the internal threaded holes. One end of the positioning pin 5 is rigidly connected to the integral anvil ring cover 2, and the other end is rigidly connected to the integral bottom ring 11, forming a closed-loop force-bearing frame.

[0044] To reduce maintenance workload, refer to Figure 5The horizontal cross-section of the insert 33 is triangular or V-shaped, and the width of the horizontal cross-section of the insert 33 decreases from the side ring 12 towards the center. The first side wall 41 and the second side wall 42 of the anvil ring block 4 are parallel to each other. When replacing a certain wear-resistant unit 32 or the anvil ring block 4 in a certain wear-resistant unit 32, it is not necessary to open the anvil ring cover 2. Just remove the positioning pin 5 corresponding to the wear-resistant unit 32, and then the anvil ring block 4 can be directly pulled away along the radial direction of the anvil ring body.

[0045] To prevent the anvil ring block 4 from moving during installation, refer to... Figure 5 and Figure 6 Several pre-installed plates 6 are provided on the inner sidewall of the side ring 12 along the circumferential direction, and the pre-installed plates 6 correspond one-to-one with the wear-resistant units 32. A connecting block 63 is fixedly installed on the side of the pre-installed plate 6 facing the side ring 12, and a vertically downward extending insertion rod 631 is fixed to the bottom of the connecting block 63. An insertion port 121 is opened at the top of the side ring 12, and the insertion port 121 corresponds one-to-one with the insertion rod 631. The insertion rod 631 is inserted into the corresponding insertion port 121 and fits against the inner wall of the insertion port 121.

[0046] Reference Figure 7 and Figure 8 A protrusion 61 is fixedly provided on the side of the pre-mounted plate 6 away from the side ring 12. A groove 44 is vertically opened on the side of the anvil ring block 4 near the side ring 12. The protrusion 61 extends into the groove 44 of all the anvil ring blocks 4 in the wear-resistant unit 32. The opposite side walls of the protrusion 61 and the opposite side walls of the groove 44 are parallel to the first side wall 41. The opposite side walls of the protrusion 61 are vertically opened into the slots 441. An insert 62 is fixedly provided on the opposite side walls of the groove 44. The insert 62 extends into the slot 441 and abuts against the inner wall of the slot 441. Specifically, the insert 62 includes a number of spring pieces arranged in sequence in the vertical direction. The spring pieces correspond one-to-one with the slots 441. The spring pieces are elastically deformable metal sheets bent in the horizontal plane. The opposite side walls of the protrusion 61 are provided with several mounting grooves for mounting the spring pieces. The spring pieces are installed in the mounting grooves. The thickness of the spring pieces is less than or equal to the depth of the mounting grooves. One end of the spring piece in the horizontal direction is fixedly connected to the mounting groove, while the other end is not fixed.

[0047] Reference Figure 7 and Figure 8 The spring clip has a protrusion 621 that extends out of the mounting groove and into the recess 441. The protrusion 621 has a set of inclined surfaces 622 with opposite inclination directions. The edge of the groove 441 can abut against one of the inclined surfaces 622, causing the protrusion 621 to deform away from the recess 441. The edge of the groove 44 near the side ring 12 can abut against the other inclined surface 622, causing the protrusion 621 to deform away from the recess 441.

[0048] Reference Figure 7 and Figure 8 When replacing a small number of anvil ring blocks 4, it is not necessary to open the anvil ring cover 2. Remove the positioning pin 5 corresponding to the severely worn anvil ring block 4, and then directly pull out the severely worn anvil ring block 4. During the process of pulling out the anvil ring block 4: the edge of the groove 441 contacts one of the inclined surfaces 622 of the spring piece protrusion 621, forcing the protrusion 621 to deform away from the groove 441. After deformation, the protrusion 621 no longer obstructs the movement of the anvil ring block 4, allowing the spring piece to smoothly disengage from the groove 441. Then, push the new anvil ring block 4 into the position of the original anvil ring block 4. During the process of pushing in the anvil ring block 4: the edge of the groove 44 near the side ring 12 contacts the other inclined surface 622 of the spring piece protrusion 621, forcing the protrusion 621 to deform away from the groove 441, allowing the anvil ring block 4 to be smoothly inserted. After the anvil ring block 4 moves into place, the protrusion 621 on the spring piece automatically recovers its deformation and abuts against the groove 441, which also helps to adjust the position of the anvil ring block 4.

[0049] The implementation principle of the anvil ring for a vertical shaft impact crusher in Embodiment 2 of this application is as follows: When a large number of complete sets of wear-resistant units 32 need to be replaced, the anvil ring block 4 can be pre-installed on the pre-installation plate 6, and then the replacement of the wear-resistant units 32 can be quickly completed through the cooperation of the insertion rod 631 and the insertion port 121. The rigid connection structure formed by the positioning pin 5, the integral anvil ring cover 2, and the bottom ring 11 improves the overall performance of the anvil ring.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A vertical shaft impact crusher anvil ring, characterized in that: The anvil ring includes an anvil ring seat (1), anvil ring cover (2), and anvil ring body. The anvil ring seat (1) includes a bottom ring (11) and a side ring (12). The side ring (12) is fixedly connected to the upper surface of the bottom ring (11). The anvil ring body is fixedly installed on the bottom ring (11) and located inside the side ring (12). The anvil ring cover (2) is fixedly installed on the top of the anvil ring body. The anvil ring body includes several layers of rings (31). All the layers of rings (31) are stacked sequentially in the vertical direction. Between two adjacent layers of rings (31), the upper surface of the lower layer of ring (31) is attached to and abuts against the lower surface of the upper layer of ring (31). The layer ring (31) includes a plurality of anvil ring blocks (4) arranged sequentially along the circumferential direction. In each layer ring (31), the anvil ring blocks (4) located at the same circumferential position are aligned in the vertical direction, and the vertically aligned anvil ring blocks (4) together form a longitudinally continuous wear-resistant unit (32). Inserts (33) are inserted between adjacent wear-resistant units (32). The sidewall of the anvil ring block (4) facing one of the adjacent inserts (33) is a first sidewall (41), and the first sidewall (41) is attached to and abuts against one of the adjacent inserts (33). The sidewall of the anvil ring block (4) facing another adjacent insert (33) is the second sidewall (42), and the second sidewall (42) is in contact with and abuts against the other adjacent insert (33); a number of positioning pins (5) are vertically arranged between the anvil ring cover (2) and the bottom ring (11), and the positioning pins (5) correspond one-to-one with the wear-resistant unit (32). All anvil ring blocks (4) in the wear-resistant unit (32) are coaxially provided with pin holes (43) in the vertical direction. The positioning pins (5) pass through the pin holes (43) of all anvil ring blocks (4) in the corresponding wear-resistant unit (32) and are in contact with the inner wall of each pin hole (43); the anvil ring cover (2) is an integrally formed ring plate. The positioning pin (5) penetrates the anvil ring cover (2) at the top, and the top of the positioning pin (5) is integrally formed with a limiting screw head (52). The limiting screw head (52) presses against the upper surface of the anvil ring cover (2). The bottom ring (11) is provided with an internal thread hole corresponding to each positioning pin (5), and the bottom of the positioning pin (5) is threadedly connected to the internal thread hole. The first side wall (41) and the second side wall (42) of the anvil ring block (4) are parallel to each other. Several pre-installed plates (6) are provided along the circumferential direction on the inner side wall of the side ring (12). The pre-installed plates (6) correspond one-to-one with the wear-resistant units (32). The side of the pre-installed plate (6) away from the side ring (12) is fixed. A protrusion (61) is provided, and a groove (44) is vertically opened on one side of the anvil ring block (4) near the side ring (12). The protrusion (61) extends into the groove (44) of all the anvil ring blocks (4) in the corresponding wear-resistant unit (32). The opposite side walls of the protrusion (61) and the opposite side walls of the groove (44) are parallel to the first side wall (41). The opposite side walls of the groove (44) are vertically opened into a slot (441). An insert (62) is fixedly provided on the opposite side walls of the protrusion (61). The insert (62) extends into the slot (441) and is flush with the inner wall of the slot (441). The insert (62) includes a plurality of spring pieces arranged in sequence in the vertical direction. Each spring piece corresponds to a groove (441). Each spring piece has a protrusion (621) bent into the groove (441). The protrusion (621) is provided with a set of inclined surfaces (622) with opposite inclination directions. The edge of the groove (441) can abut against one of the inclined surfaces (622) and drive the protrusion (621) to deform away from the groove (441). The edge of the groove (44) near the side ring (12) can abut against another inclined surface (622) and drive the protrusion (621) to deform away from the groove (441).

2. The anvil ring for a vertical shaft impact crusher according to claim 1, characterized in that: A connecting block (63) is fixedly installed on the side of the pre-installed plate (6) facing the side ring (12). A vertically downward extending insertion rod (631) is fixed at the bottom of the connecting block (63). Several insertion holes (121) are opened at the top of the side ring (12). The insertion holes (121) correspond one-to-one with the insertion rods (631). The insertion rods (631) are inserted into the corresponding insertion holes (121) and fit against the inner wall of the insertion holes (121).

Images