Three-section fan-shaped circlip fastening structure for tooth roll of double-toothed roll crusher

Abstract

The utility model relates to tooth roll fastening structure technical field, the utility model provides three -segmented fan -shaped circlip fastening structure for tooth roll of double -tooth roll crusher, is used for installing in annular groove on the main shaft, provides axial fastening force for the tooth roll on the main shaft, a plurality of fan -shaped plates can be nested to annular groove to form annular fastener in common, annular fastener is used to abut tooth roll end surface to provide axial fastening force, fan -shaped plate first end mistake boss is used to with adjacent fan -shaped plate tail end mistake boss intercalation. Three -segmented fan -shaped circlip fastening structure is through the annular fastener of three fan -shaped plates and abuts tooth roll end surface to realize axial fastening, avoids the wear and tear, the tooth slip and the shaft slippage problem that the screw connection is easy to appear under the long -term alternating stress effect, improves the reliability and the durability of fastening structure. Through the above technical scheme, the technical problem that the fastening structure of traditional double round nut + stop washer in relevant technology is easy to appear thread wear, tooth slip and shaft slippage in long -term work.

Description

Technical Field

[0001] The embodiments of this utility model relate to the field of toothed roller fastening structure technology, specifically to a three-section sector-shaped retaining ring fastening structure for toothed rollers of a double toothed roller crusher. Background Technology

[0002] Double-toothed roll crushers are a common and widely used material crushing equipment, playing a crucial role in industries such as mining, metallurgy, and building materials. They primarily crush materials by squeezing, shearing, and splitting them through two relatively rotating toothed rolls. Their core components are securely mounted on the main shaft to ensure stable operation even under high-speed rotation and impact loads and torque, guaranteeing smooth crushing operations.

[0003] Currently, the common practice in the industry is to use a double round nut + locking washer to secure the crusher roller to the main shaft. This double round nut and locking washer provide axial tightening force. This solution is relatively simple in structure and widely used. However, in actual operation, the threaded connection between the nut and the main shaft is subjected to alternating stress over a long period, which can easily lead to thread wear, stripping, and shaft misalignment, affecting the normal operation of the equipment.

[0004] Therefore, developing a more reliable, durable, and low-maintenance fastening structure has become an important issue that urgently needs to be addressed in the field of double-toothed roll crushers, which is of great significance for improving the production efficiency and economic benefits of related industries. Utility Model Content

[0005] To overcome the above-mentioned defects, the embodiments of this utility model provide a three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double toothed roller crusher, which solves the technical problem that the traditional fastening structure of double round nuts + retaining washers is prone to thread wear, stripping and shaft slippage during long-term operation.

[0006] According to one aspect, at least one embodiment of the present invention provides a three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher, for installation in an annular groove on the main shaft to provide axial fastening force to the toothed rollers on the main shaft. The structure includes several sector-shaped plates, which can be nested into the annular groove and are connected end to end to form an annular retainer. The annular retainer is used to abut against the end face of the toothed roller to provide axial fastening force. Each sector-shaped plate has a complementary anti-misalignment boss at both ends, and the anti-misalignment boss at the beginning of the sector-shaped plate is used to engage with the anti-misalignment boss at the end of the adjacent sector-shaped plate.

[0007] For example, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher provided in at least one embodiment of this utility model further includes: It also includes locking bolts, and the anti-misalignment protrusions have locking screw holes. The locking bolts are used to be threaded into the locking screw holes of the two anti-misalignment protrusions after the two anti-misalignment protrusions are engaged, so as to fix the two sector plates.

[0008] For example, in at least one embodiment of the present invention, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher further includes: The anti-misalignment protrusion on the fan-shaped plate near the toothed roller has a receiving groove. A stop rubber sheet for contacting the end face of the toothed roller is embedded in the receiving groove. The stop rubber sheet has a positioning post that can be inserted into the locking screw hole. The positioning post is used to position the stop rubber sheet.

[0009] For example, in at least one embodiment of the present invention, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher further includes: The receiving groove is connected to the locking screw hole. After the locking bolt is threaded to the locking screw hole, it can abut against the positioning post inserted into the locking screw hole, and is used to tighten the positioning post to provide the force for the stop rubber sheet to press against the end face of the toothed roller.

[0010] For example, in at least one embodiment of the present invention, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher further includes: A fan-shaped baffle is provided on the end face of the fan-shaped plate away from the toothed roller. The baffle is used to cover the gap between the fan-shaped plate and the edge of the annular groove.

[0011] For example, in at least one embodiment of the present invention, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher further includes: The baffle is provided with a fan-shaped rubber baffle, which is used to contact the circumferential surface of the spindle to cover the gap between the fan-shaped plate and the edge of the annular groove.

[0012] For example, in at least one embodiment of the present invention, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher further includes: The baffle and the sector plate are detachably connected.

[0013] For example, in at least one embodiment of the present invention, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher further includes: The number of sector plates is three.

[0014] For example, in at least one embodiment of the present invention, the three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher further includes: An anti-loosening washer is provided between the nut of the locking bolt and the end face of the sector plate.

[0015] The beneficial effects of the embodiments of this utility model are as follows: In this invention, the traditional double round nut + locking washer fastening structure relies on the threaded structure to provide axial fastening force, while the three-section sector-shaped retaining ring fastening structure achieves axial fastening by abutting the toothed roller end face with a ring-shaped retainer composed of three sector-shaped plates. This fastening method avoids the wear, stripping and shaft slippage problems that are prone to occur in threaded connections under long-term alternating stress, and improves the reliability and durability of the fastening structure.

[0016] The anti-misalignment bosses at both ends of the sector-shaped plates not only aid in alignment during installation, ensuring assembly accuracy, but also, because the three sector-shaped plates have identical structures, any one of them can be interchanged with the others during installation. This improves assembly efficiency, eliminating the need for operators to spend time distinguishing different components; they can simply install according to the positions of the anti-misalignment bosses. Furthermore, during equipment maintenance and repair, if a sector-shaped plate is damaged, it can be easily replaced with a new one, offering convenience, speed, and reduced maintenance costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the three-section fan-shaped retaining ring fastening structure for the toothed roller of a double toothed roller crusher at one angle in one embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of the three-section fan-shaped retaining ring fastening structure for the toothed rollers of the double toothed roller crusher from another angle in the embodiment; Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 for Figure 1 A schematic diagram of the structure in which the annular clip is removed from the main shaft in the embodiment; Figure 5 for Figure 1 A schematic diagram of the structure of the sector plate in the embodiment; Figure 6 for Figure 1 A schematic diagram of the baffle structure in the embodiment.

[0019] In the diagram: 1. Fan-shaped plate, 2. Anti-misalignment boss, 3. Locking bolt, 4. Locking screw hole, 5. Receiving groove, 6. Stop rubber sheet, 7. Positioning post, 8. Baffle, 9. Rubber baffle. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.

[0021] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."

[0022] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0024] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0026] like Figures 1-6 As shown, this invention illustrates a three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher, used for installation within an annular groove on the main shaft to provide axial fastening force to the toothed rollers on the main shaft. The structure includes several sector-shaped plates 1, specifically three, with complementary anti-misalignment protrusions 2 at both ends of each sector-shaped plate 1. During installation, the three sector-shaped plates 1 are nested into the annular groove of the main shaft. Because the anti-misalignment protrusions 2 at both ends of the sector-shaped plates 1 interlock, the three sector-shaped plates 1 are connected end-to-end to form a complete annular retaining element. This annular retaining element is installed within the annular groove of the main shaft and abuts against the end face of the toothed roller, thereby providing axial fastening force to the toothed roller.

[0027] Working principle: The traditional double round nut + locking washer fastening structure relies on the thread structure to provide axial fastening force. However, this three-section sector-shaped retaining ring fastening structure achieves axial fastening by abutting the toothed roller end face with a ring-shaped retainer composed of three sector plates 1. This fastening method avoids the wear, stripping and shaft slippage problems that are prone to occur in threaded connections under long-term alternating stress, and improves the reliability and durability of the fastening structure.

[0028] The anti-misalignment bosses 2 at both ends of the sector plate 1 not only facilitate alignment during installation and ensure assembly accuracy, but also, because the three sector plates 1 have identical structures, any one sector plate 1 can be interchanged with the others during installation, improving assembly efficiency. Operators do not need to spend time distinguishing different parts; they only need to install according to the position of the anti-misalignment bosses 2. During equipment maintenance and repair, if a sector plate 1 is damaged, it can be easily replaced with a new one, which is convenient, quick, and reduces maintenance costs.

[0029] In some examples, such as Figures 2-5 As shown, each anti-misalignment boss 2 is designed with two locking screw holes 4. When the anti-misalignment bosses 2 of the two sector plates 1 are fitted together, the locking screw holes 4 are also aligned. During installation, the locking bolts 3 are screwed into the locking screw holes 4 of the two anti-misalignment bosses 2 to fix the two sector plates 1 together. Anti-loosening washers are provided between the nuts of the locking bolts 3 and the end faces of the sector plates 1 to prevent the locking bolts 3 from loosening due to external vibration or other reasons.

[0030] A receiving groove 5, communicating with a locking screw hole 4, is provided on the anti-misalignment protrusion 2 of the sector plate 1 located near the toothed roller. A stop rubber sheet 6 is embedded in the receiving groove 5, contacting the end face of the toothed roller to increase friction and prevent relative rotation between the sector plate 1 and the toothed roller. A positioning post 7 is provided on the stop rubber sheet 6, which can be inserted into the locking screw hole 4 to position the stop rubber sheet 6. Simultaneously, the receiving groove 5 communicates with the locking screw hole 4. When the locking bolt 3 is threaded into the locking screw hole 4, its end can abut against the positioning post 7 inserted into the locking screw hole 4. As the locking bolt 3 is tightened, the pressure it generates on the positioning post 7 is transmitted to the stop rubber sheet 6, causing the stop rubber sheet 6 to press more tightly against the end face of the toothed roller, providing a stronger fastening force.

[0031] Working principle: By setting locking screw holes 4 on the anti-misalignment boss 2 and using locking bolts 3 for threaded connection, multiple sector plates 1 are combined together to form a ring clamp, ensuring the stability of the fastening structure. The stop rubber sheet 6 is embedded in the sector plate 1 through the receiving groove 5 to increase the friction with the toothed roller end face and prevent relative rotation between them. The positioning pin 7 is inserted into the locking screw hole 4 to position the stop rubber sheet 6, ensuring it does not shift during operation. The locking bolt 3, by abutting against the positioning pin 7, provides additional pressure to the stop rubber sheet 6. By cleverly utilizing the tightening force of the locking bolt 3, it can more tightly press against the toothed roller end face, further enhancing the fastening effect.

[0032] In some examples, such as Figure 6 As shown, a fan-shaped baffle 8 is provided on the end face of the fan-shaped plate 1 away from the toothed roller, which can cover the gap between the fan-shaped plate 1 and the edge of the annular groove. A fan-shaped rubber baffle 9 is provided on the baffle 8, which can make close contact with the circumferential surface of the main shaft. The baffle 8 and the fan-shaped plate 1 are detachably connected for easy inspection or maintenance.

[0033] Working Principle: The main function of baffle 8 and rubber baffle 9 is to block the gap between the sector plate 1 and the edge of the annular groove. During the operation of the double-toothed roller crusher, impurities in the environment, such as dust and small particles, may enter and accumulate inside the annular groove, affecting the good contact between the sector plate 1 and the annular groove, and thus affecting the stability and reliability of the fastening structure. Rubber baffle 9 can, on the one hand, tightly fit against the circumferential surface of the main shaft, filling the gap between baffle 8 and the main shaft and improving sealing; on the other hand, it can prevent hard contact between baffle 8 and the main shaft. The installation of baffle 8 and rubber baffle 9 effectively prevents the entry of impurities, prevents impurity accumulation, and ensures a clean and tight fit between the sector plate 1 and the annular groove.

[0034] To meet equipment maintenance needs, the baffle 8 and the sector plate 1 are designed to be detachably connected. When it is necessary to inspect, clean, or replace the sector plate 1, the annular groove, or other components, the baffle 8 can be easily disassembled for the corresponding maintenance operations. This improves the efficiency of maintenance work and reduces its difficulty.

[0035] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher is used to install in the annular groove on the main shaft, providing axial fastening force to the toothed rollers on the main shaft, characterized in that... It includes several sector plates (1), which can be nested into an annular groove and connected end to end to form an annular clamp. The annular clamp is used to abut against the end face of the toothed roller to provide axial fastening force. The two ends of the sector plates (1) have anti-misalignment protrusions (2) with complementary shapes. The anti-misalignment protrusions (2) at the beginning of the sector plates (1) are used to fit into each other with the anti-misalignment protrusions (2) at the end of the adjacent sector plates (1).

2. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 1, characterized in that, It also includes a locking bolt (3), on which the anti-misalignment boss (2) has a locking screw hole (4). The locking bolt (3) is used to be threaded into the locking screw hole (4) of the two anti-misalignment bosses (2) after the two anti-misalignment bosses (2) are fitted together, so as to fix the two sector plates (1).

3. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 2, characterized in that, The fan-shaped plate (1) has a receiving groove (5) on the anti-misalignment boss (2) located near the toothed roller. The receiving groove (5) is embedded with a stop rubber sheet (6) for contacting the end face of the toothed roller. The stop rubber sheet (6) has a positioning post (7) that can be inserted into the locking screw hole (4). The positioning post (7) is used to position the stop rubber sheet (6).

4. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 3, characterized in that, The receiving groove (5) is connected to the locking screw hole (4). After the locking bolt (3) is threaded to the locking screw hole (4), it can abut against the positioning post (7) inserted into the locking screw hole (4) to provide the force for the stop rubber sheet (6) to press against the end face of the toothed roller.

5. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 1, characterized in that, The fan-shaped plate (1) has a fan-shaped baffle (8) on the side of the end face away from the toothed roller. The baffle (8) is used to cover the gap between the fan-shaped plate (1) and the edge of the annular groove.

6. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 5, characterized in that, The baffle (8) is provided with a fan-shaped rubber baffle (9), which is used to contact the circumferential surface of the spindle to block the gap between the fan-shaped plate (1) and the edge of the annular groove.

7. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 5, characterized in that, The baffle (8) and the sector plate (1) are detachably connected.

8. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 1, characterized in that, The number of sector plates (1) is three.

9. The three-section sector-shaped retaining ring fastening structure for the toothed rollers of a double-toothed roller crusher according to claim 2, characterized in that, An anti-loosening washer is provided between the nut of the locking bolt (3) and the end face of the sector plate (1).

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