A heavy-duty gear
By designing a detachable connection structure and a stable connection component in the heavy-duty gear, the problem of replacing the entire gear after the tooth block wears or is damaged is solved, realizing the quick disassembly and assembly and stable connection of individual tooth blocks, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JUNMAO PRECISION MFG (SUZHOU) CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-05-26
AI Technical Summary
Existing heavy-duty gears are prone to wear or damage to their tooth blocks under high-intensity operating conditions, resulting in high replacement costs and inconvenient maintenance for the entire gear system.
A detachable connection structure is designed, in which the gear block and the gear disk are detachably connected through a mating plate, positioning block, mounting plate and fastening bolts, and the shaft and gear disk are securely connected through components such as a ring, arc block, adjusting screw and limit strip.
It enables quick disassembly and replacement of individual tooth blocks, reducing maintenance costs and improving repair efficiency and performance.
Smart Images

Figure CN224283387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heavy-duty gear technology, and more specifically, to a heavy-duty gear. Background Technology
[0002] Heavy-duty gears are gears used to transmit power and motion under conditions of large loads and torques. They are typically used in applications requiring high strength and durability, such as heavy machinery, mining equipment, and construction machinery.
[0003] A search revealed that Chinese patent CN219492980U discloses a heavy-duty, high-speed large gear assembly. This structure, through the setting of a compression semi-ring, allows the user to fix the gear body and the rotating rod by rotating a control handle. Under the action of the control handle, the transmission shaft drives the lead screw to rotate. The structural relationship between the limiting rod and the limiting block causes the lead screw to move the sleeve, which in turn causes the compression semi-ring to fix the rotating rod, thus completely fixing the inner diameter of the gear to the rotating rod and increasing the transmission efficiency of the gear.
[0004] However, in actual use, the gear disk and the tooth block of this structure are integrated. After long-term operation in a high-intensity environment, the tooth block is prone to wear or damage. Once a single tooth block is damaged, the entire gear needs to be replaced, which increases maintenance costs and results in poor performance. In view of this, this utility model proposes a heavy-duty gear. Utility Model Content
[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a heavy-duty gear to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a heavy-duty gear, including a gear disk, wherein a plurality of tooth blocks are distributed in a ring on the outer wall of the gear disk, and a connecting structure is provided at the connection between the tooth blocks and the gear disk, wherein the number of tooth blocks and the connecting structure are both set to be the same, and the tooth blocks are detachably connected to the gear disk through the connecting structure.
[0007] To facilitate the disassembly and replacement of damaged or worn gear blocks and reduce maintenance costs, preferably, the connecting structure includes a mating plate, which is fixedly installed at the bottom of the gear block. A mating groove is formed on the surface of the gear disk, and a positioning groove is formed at the bottom of the inner cavity of the mating groove. A positioning block is fixedly installed at the bottom of the mating plate. Mounting grooves communicating with the mating groove are formed on both outer walls of the gear disk. Mounting plates are fixedly installed at both ends of the mating plate. Fastening bolts are provided at the connection points between the mounting plates and the gear disk. The mating plate is adapted to the structure of the mating groove, and the thickness of the mating plate is the same as the depth of the mating groove. The positioning block is adapted to the structure of the positioning groove, and the thickness of the positioning block is the same as the depth of the positioning groove. The mounting plate is adapted to the structure of the mounting groove, and the thickness of the mounting plate is the same as the depth of the mounting groove.
[0008] To facilitate the connection between the shaft and the gear, preferably, a ring is fixedly installed at the center of the gear disk surface. Two arc-shaped blocks are symmetrically installed inside the ring, and both arc-shaped blocks extend to the outside of the ring. An adjusting screw is connected to the surface of each arc-shaped block, and the adjusting screw is threadedly connected to the ring. A shaft is provided between the two arc-shaped blocks, and two limiting strips are fixedly installed on the outer surface of the shaft. Limiting grooves are respectively formed on the surfaces of the two arc-shaped blocks. A screw is provided at the connection between the arc-shaped blocks and the shaft, and they are connected by the screw.
[0009] The technical effects and advantages of this utility model are as follows:
[0010] 1. By setting a connection structure, the gear block and gear disk are designed to be detachable, and the connection structure enables the disassembly and assembly of the gear and gear disk. This allows for the detachable connection of the gear block, so that when a single gear block is worn or damaged, the entire gear disk does not need to be replaced, reducing maintenance costs. At the same time, it facilitates quick disassembly and assembly, improving maintenance efficiency.
[0011] 2. Through the cooperation of components such as the ring, arc block, adjusting screw and limiting strip, the shaft is inserted into the ring, and the adjusting screw drives the arc block to clamp the shaft, which can perform the initial installation of the shaft. The cooperation between the limiting strip and the limiting groove can prevent relative rotation between the two. Finally, it can be fixed with screws to ensure a stable connection between the shaft and the gear disk and improve the performance. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0013] Figure 2 This is a schematic diagram of a partial connection structure between the tooth block and the gear disk of this utility model.
[0014] Figure 3 This is a schematic diagram of the structure of the shaft and ring after installation.
[0015] Figure 4 This is a schematic diagram of the connection structure between the shaft and the arc-shaped block of this utility model.
[0016] The attached diagram is labeled as follows: 1. Gear disk; 2. Gear block; 3. Connecting plate; 4. Connecting groove; 5. Positioning groove; 6. Positioning block; 7. Mounting groove; 8. Mounting plate; 9. Fastening bolt; 10. Ring; 11. Arc block; 12. Adjusting screw; 13. Shaft; 14. Limiting strip; 15. Limiting groove; 16. Screw. Detailed Implementation
[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0018] Example 1:
[0019] As attached Figure 1 , 2 As shown, this embodiment provides a heavy-duty gear, including a gear disk 1. The outer wall of the gear disk 1 has a plurality of tooth blocks 2 distributed in a ring. A connecting structure is provided at the connection between the tooth blocks 2 and the gear disk 1. The number of tooth blocks 2 and the connecting structure are both set to be the same, and the tooth blocks 2 are detachably connected to the gear disk 1 through the connecting structure.
[0020] The connecting structure includes a docking plate 3, which is fixedly installed on the bottom of the gear block 2. A docking groove 4 is formed on the surface of the gear disk 1, and a positioning groove 5 is formed at the bottom of the inner cavity of the docking groove 4. A positioning block 6 is fixedly installed on the bottom of the docking plate 3. Mounting grooves 7 that communicate with the docking groove 4 are formed on both outer walls of the gear disk 1. Mounting plates 8 are fixedly installed at both ends of the docking plate 3. Fastening bolts 9 are provided at the connection between the mounting plates 8 and the gear disk 1. The docking plate 3 and the docking groove 4 are structurally compatible, and the thickness of the docking plate 3 is the same as the depth of the docking groove 4. The positioning block 6 and the positioning groove 5 are structurally compatible, and the thickness of the positioning block 6 is the same as the depth of the positioning groove 5. The mounting plate 8 and the mounting groove 7 are structurally compatible, and the thickness of the mounting plate 8 is the same as the depth of the mounting groove 7.
[0021] Specifically, in this embodiment, the tooth block 2 is detachably connected to the gear disk 1 through a connecting structure. Once the heavy-duty gear is used and the individual tooth block 2 is worn or damaged, the operator can release the fastening bolts 9 at the mounting plate 8 and the gear disk 1, and detach the positioning block 6 at the bottom of the docking plate 3 from the positioning groove 5 on the gear disk 1, so that the damaged tooth block 2 can be disassembled and replaced.
[0022] When it is necessary to install the replacement tooth block 2, the same method is used to insert the positioning block 6 at the bottom of the docking plate 3 into the inside of the positioning groove 5, so that the docking plate 3 is located inside the docking groove 4. At this time, the mounting plates 8 at both ends of the docking plate 3 are located inside the corresponding mounting grooves 7. The mounting plates 8 are fixed to the surface of the gear disk 1 by fastening bolts 9, and the replacement tooth block 2 can be installed.
[0023] In summary, this embodiment separates the tooth block 2 from the gear disk 1 and achieves a detachable connection through a connecting structure, which facilitates the disassembly and assembly of damaged gears by operators and reduces maintenance costs.
[0024] Example 2:
[0025] Based on the above embodiment 1, specifically:
[0026] As attached Figure 1 , 3 As shown in Figure 4, a ring 10 is fixedly installed at the center of the surface of the gear disk 1. Two arc-shaped blocks 11 are symmetrically installed inside the ring 10. Both arc-shaped blocks 11 extend to the outside of the ring 10. An adjusting screw 12 is connected to the surface of the arc-shaped blocks 11. The adjusting screw 12 is threadedly connected to the ring 10. A shaft 13 is provided between the two arc-shaped blocks 11. Two limiting strips 14 are fixedly installed on the outer surface of the shaft 13. Limiting grooves 15 are respectively opened on the surfaces of the two arc-shaped blocks 11. A screw 16 is provided at the connection between the arc-shaped blocks 11 and the shaft 13, and they are connected by the screw 16.
[0027] Specifically, in this embodiment, when connecting the shaft 13 to the gear disk 1, one end of the shaft 13 is placed inside the ring 10 and between two arc-shaped blocks 11. According to the outer diameter of the shaft 13, the operator rotates the adjusting screw 12 to make the two arc-shaped blocks 11 approach each other and fit against the outer wall of the shaft 13, thus performing the initial installation of the shaft 13.
[0028] After the two arc-shaped blocks 11 are attached to the outer wall of the shaft 13, the limiting strip 14 on the surface of the shaft 13 is inserted into the limiting groove 15 opened in the arc-shaped blocks 11 to prevent relative sliding between the shaft 13 and the arc-shaped blocks 11 during rotation. Finally, the arc-shaped blocks 11 and the shaft 13 are fixed by screws 16 to complete the final fixation of the shaft 13. At this time, the rotation of the shaft 13 can drive the entire gear to rotate.
[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A heavy-duty gear comprising a gear disc (1), characterized in that: The outer wall of the gear disk (1) is provided with a number of tooth blocks (2) arranged in a ring, and a connection structure is provided at the connection between the tooth blocks (2) and the gear disk (1); The connection structure includes a docking plate (3), which is fixedly installed at the bottom of the tooth block (2). A docking groove (4) is provided on the surface of the gear disk (1). A positioning groove (5) is provided at the bottom of the inner cavity of the docking groove (4). A positioning block (6) is fixedly installed at the bottom of the docking plate (3). An installation groove (7) communicating with the docking groove (4) is provided on both sides of the outer wall of the gear disk (1). An installation plate (8) is fixedly installed at both ends of the docking plate (3). Fastening bolts (9) are provided at the connection between the installation plate (8) and the gear disk (1).
2. The heavy-duty gear according to claim 1, characterized in that: A ring (10) is fixedly installed at the center of the surface of the gear disk (1). Two arc blocks (11) are symmetrically installed inside the ring (10). Both arc blocks (11) extend to the outside of the ring (10). An adjusting screw (12) is connected to the surface of the arc block (11). The adjusting screw (12) is threadedly connected to the ring (10).
3. The heavy-duty gear according to claim 2, characterized in that: A shaft (13) is provided inside the ring (10) and between the two arc blocks (11). Two limiting strips (14) are fixedly installed on the outer surface of the shaft (13). Limiting grooves (15) are respectively opened on the surfaces of the two arc blocks (11). Screws (16) are provided at the connection between the arc blocks (11) and the shaft (13), and they are connected by screws (16).
4. The heavy-duty gear according to claim 1, characterized in that: The docking plate (3) and the docking groove (4) are structurally compatible, and the thickness of the docking plate (3) is the same as the depth of the docking groove (4). The positioning block (6) is adapted to the structure of the positioning groove (5), and the thickness of the positioning block (6) is the same as the depth of the positioning groove (5). The structure of the mounting plate (8) is adapted to the mounting groove (7), and the thickness of the mounting plate (8) is the same as the depth of the mounting groove (7).
5. The heavy-duty gear according to claim 1, characterized in that: The number of tooth blocks (2) and the number of connecting structures are both set to be the same, and the tooth blocks (2) are detachably connected to the gear disk (1) through the connecting structures.