A flexible dismountable gear ring
By using a separate design for the drive wheel and the gear ring, the problem of cumbersome replacement of existing track gear rings is solved, enabling fast and economical gear ring replacement and reducing maintenance difficulty and cost.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU SHIZHEN ENG VEHICLE FITTINGS CO LTD
- Filing Date
- 2025-09-30
- Publication Date
- 2026-07-14
AI Technical Summary
The existing track tooth rings are integrally cast, which means that the chain must be removed before replacement, making the process cumbersome, costly, and difficult to maintain.
It adopts a split design for the drive wheel and gear ring. The gear ring is made up of multiple split rings spliced together. It can be quickly disassembled and replaced through connecting plates and mounting holes. The reducer output shaft is connected to the wheel hub drive, and the ring groove hides the mounting holes to prevent damage.
It enables the replacement of worn toothed rings without disassembling the track chain, reducing maintenance time and costs, improving maintenance efficiency, and preventing damage to mounting holes.
Smart Images

Figure CN224491270U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of track component technology, specifically a toothed ring that can be flexibly disassembled and assembled. Background Technology
[0002] The track toothed ring is a key component that meshes with the drive wheel and transmits power to drive the track. Its structure usually consists of a toothed ring, a washer, a conical toothed cup, etc. It is installed on the hub of the drive wheel and is driven by meshing with the gear and the holes in the track plate.
[0003] The toothed ring in the existing technology is a one-piece cast structure. As a wear part, the toothed ring needs to be replaced frequently. When replacing it, the chain must be removed first, then the toothed ring must be removed from the reducer, a new toothed ring must be installed, and then the chain must be installed. The process is cumbersome and requires many tools. It has technical problems such as difficult maintenance and high cost of component replacement. To solve the above problems, we propose a toothed ring that can be flexibly disassembled and assembled. Utility Model Content
[0004] The purpose of this invention is to provide a flexibly detachable gear ring to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a flexibly detachable gear ring, comprising a track frame, a reducer, and a split-type drive wheel. The reducer is installed at the front left end of the track frame, and the split-type drive wheel is provided at the left end of the track frame. The split-type drive wheel includes a hub, a mounting groove, a first mounting hole, and an integral gear ring. The output shaft of the reducer is connected to the hub. The hub has a mounting groove around its side, and a first mounting hole is provided through the front and rear walls of the mounting groove, extending to the front and rear surfaces of the hub. The hub is fitted with an integral gear ring, which is composed of multiple separate gear rings joined together. A connecting piece is integrally cast along the inner edge of each gear ring, and the connecting piece is inserted into the inner side of the mounting groove. A second mounting hole is provided through the surface of the connecting piece, and the first and second mounting holes are locked together by bolts, so that the gear ring is bolted to the side of the hub surface.
[0006] Preferably, the toothed ring is cut into 2-5 toothed ring segments on average, and each toothed ring segment has the same shape and specifications.
[0007] Preferably, adjacent gear ring components in the overall gear ring are tightly joined and fitted together.
[0008] Preferably, the number of second mounting holes on the connecting piece is not less than three, and the second mounting holes are equidistantly distributed along the surface of the connecting piece.
[0009] Preferably, the front and rear surfaces of the hub are coaxially provided with annular grooves, and the first mounting hole is equidistantly distributed on the inner wall of the annular groove.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] This invention features a split-type drive wheel. When the entire toothed ring is worn and needs replacement, the worn toothed ring can be disassembled and replaced individually. First, the chain is driven to fully expose the toothed ring to be replaced on the outside of the chain. Then, all the connecting bolts on the toothed ring are removed, thus detaching the toothed ring from the hub. This allows the connecting piece to be separated from the mounting slot, completing the disassembly of the toothed ring. The replacement toothed ring is then initially fixed by inserting it into the mounting slot using the connecting piece. Finally, bolts are used to lock the first mounting hole and the second mounting hole, completing the overall replacement process. The track chain does not need to be disassembled during the maintenance process, greatly reducing maintenance time and lowering the cost of component replacement, making it economical and efficient.
[0012] This invention features annular grooves on the front and rear surfaces of the wheel hub. These grooves provide a concealed design for the No. 1 mounting hole, preventing the mounting bolts from being exposed and thus avoiding the risk of scratches or damage. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall front view of the present invention;
[0014] Figure 2 This is a front view schematic diagram of the split-type drive wheel in this utility model;
[0015] Figure 3 This is a front view schematic diagram of the overall gear ring structure in this utility model;
[0016] Figure 4 This is a front view structural diagram of the wheel hub in this utility model;
[0017] Figure 5 This is a front view cross-sectional structural diagram of the wheel hub in this utility model.
[0018] In the diagram: Track frame-1, reducer-2, split drive wheel-3, hub-31, assembly slot-32, mounting hole 1-33, integral gear ring-34, split gear ring-341, connecting piece-342, mounting hole 2-343, ring groove-35, idler wheel-4, track roller-5, drag chain wheel-6, chain-7, track plate-8. Detailed Implementation
[0019] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.
[0020] Please see Figure 1 , Figure 2 , Figure 3 and Figure 5 This utility model provides a flexibly detachable gear ring, including a track frame 1, a reducer 2, and a split-type drive wheel 3. The reducer 2 is installed at the front left end of the track frame 1, and the split-type drive wheel 3 is provided at the left end of the track frame 1. The split-type drive wheel 3 includes a hub 31, a mounting groove 32, a first mounting hole 33, and a gear ring assembly 34. The output shaft of the reducer 2 is connected to the hub 31. The mounting groove 32 is provided around the side of the hub 31, and the first mounting hole 33 is provided through the front and rear walls of the mounting groove 32. The mounting hole 33 extends to the front and rear surfaces of the wheel hub 31. The wheel hub 31 is fitted with a gear ring integral 34, which is composed of a plurality of gear ring segments 341 spliced together in a ring. A connecting piece 342 is integrally cast on the inner edge of the gear ring segments 341. The connecting piece 342 is inserted into the inner side of the mounting groove 32. A second mounting hole 343 is opened through the surface of the connecting piece 342. The first mounting hole 33 and the second mounting hole 342 are locked and fixed by bolts, so that the gear ring segments 341 are bolted to the side of the surface of the wheel hub 31.
[0021] To further explain, a guide wheel 4 is rotatably installed on the right end of the track frame 1, support rollers 5 are equidistantly arranged at the bottom of the track frame 1, drag chain rollers 6 are equidistantly arranged at the top of the track frame 1, and a chain 7 is sleeved on the outside of the track frame 1. The chain 7 is sleeved and engaged with the surfaces of the split drive wheel 3, guide wheel 4, support roller 5 and drag chain roller 6. Track plates 8 are provided on the outer wall of the chain 7.
[0022] To further explain, the gear ring 34 is cut into 2-5 gear ring segments 341. Each gear ring segment 341 has the same shape and specifications, which allows the gear ring segments 341 to be interchanged and used. This facilitates the quick and easy finding of replacement parts of the same specifications, improving maintenance efficiency. In particular, the adjacent gear ring segments 341 in the gear ring 34 are tightly fitted together to ensure that there are no obvious gaps between the gear ring segments 341, ensuring that the gear ring segments 341 are installed firmly and do not wobble.
[0023] The number of mounting holes 343 on the connecting piece 342 is no less than 3, and the mounting holes 343 are equidistantly distributed along the surface of the connecting piece 342 to ensure the installation firmness of the connecting piece 342.
[0024] Specifically, by setting up a split-type drive wheel 3, when the entire gear ring is worn and needs to be replaced, the worn part of the gear ring can be disassembled and replaced separately. First, drive the chain to move, fully exposing the gear ring part to be replaced on the outside of the chain. Then, remove all the connecting bolts on the gear ring part, thereby detaching the gear ring part from the hub. The connecting piece can then be separated from the mounting slot to complete the disassembly of the gear ring part. The replacement gear ring part is then initially fixed by inserting it into the mounting slot through the connecting piece. Finally, bolts are used to lock and fix the first mounting hole and the second mounting hole, thus completing the overall replacement process. The track chain does not need to be disassembled during the maintenance process, which greatly reduces maintenance time and lowers the cost of component replacement, making it economical and efficient.
[0025] Please see Figure 4 This utility model provides a detachable gear ring. The front and rear surfaces of the hub 31 are coaxially provided with annular grooves 35. The first mounting hole 33 is equidistantly distributed on the inner wall of the annular groove 35. The annular groove 35 can provide a hidden design for the first mounting hole 33, preventing the mounting bolts of the first mounting hole 33 from being exposed and causing scratches or damage.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. 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 detachable gear ring, characterized in that: The system includes a track frame (1), a reducer (2), and a split drive wheel (3). The reducer (2) is installed on the front left end of the track frame (1), and the split drive wheel (3) is provided on the left end of the track frame (1). The split drive wheel (3) includes a hub (31), a mounting groove (32), a first mounting hole (33), and an integral gear ring (34). The output shaft of the reducer (2) is connected to the hub (31) for transmission. The hub (31) has a mounting groove (32) arranged around its side. The mounting groove (32) has a first mounting hole (33) that runs through its front and rear walls. The wheel hub (31) is connected to the front and rear surfaces. The wheel hub (31) is fitted with a toothed ring integral (34). The toothed ring integral (34) is composed of a plurality of toothed ring parts (341) spliced together. A connecting piece (342) is integrally cast on the inner edge of the toothed ring parts (341). The connecting piece (342) is inserted into the inner side of the mounting groove (32). A second mounting hole (343) is opened through the surface of the connecting piece (342). The first mounting hole (33) and the second mounting hole (343) are locked and fixed by bolts, so that the toothed ring parts (341) are bolted to the side of the surface of the wheel hub (31).
2. The detachable gear ring according to claim 1, characterized in that: The gear ring as a whole (34) is cut into 2-5 gear ring segments (341) on average, and each gear ring segment (341) has the same shape and specifications.
3. The detachable gear ring according to claim 1, characterized in that: The adjacent gear ring segments (341) in the overall gear ring (34) are closely fitted together.
4. The detachable gear ring according to claim 1, characterized in that: The number of mounting holes (343) on the connecting piece (342) is not less than 3, and the mounting holes (343) are equidistantly distributed along the surface of the connecting piece (342).
5. The detachable gear ring according to claim 1, characterized in that: The front and rear surfaces of the hub (31) are coaxially provided with annular grooves (35), and mounting holes (33) are equidistantly distributed on the inner wall of the annular grooves (35).