Split type row chain supporting frame of tobacco cutter
By designing a split-type chain support frame, the mounting insert of the shredder's drive shaft can be disassembled and replaced, solving the problem of time-consuming and labor-intensive support frame replacement in the existing technology, and reducing maintenance costs and labor intensity.
Patent Information
- Application Number
- CN202520356104.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-28
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-28
AI Technical Summary
The existing chain support frame of the shredder is an integrated structure, which means that the entire support frame needs to be replaced when the main drive shaft bearing is replaced, which is time-consuming, labor-intensive and costly.
Design a split-type chain support frame for a shredder. The main body of the support frame and the drive shaft mounting block are detachably connected. The drive shaft mounting block can be detachably replaced by a T-shaped plug-in structure and a locking pin.
It simplifies the maintenance process, saves maintenance costs and time, reduces labor intensity, and only requires replacing the worn drive shaft mounting insert instead of replacing the entire support frame.
Smart Images

Figure CN223886211U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of cigarette production equipment, and in particular to a split-type chain support frame for a shredder. Background Technology
[0002] In the cigarette manufacturing workshop, the shredder is one of the most important main equipment, and its performance directly affects the workshop's production efficiency and product quality. Currently, the shredder used in the cigarette manufacturing workshop is the TOBSPIN type. Long-term operation of this main equipment causes wear and tear. When the wear reaches a certain level, the severely worn main drive shaft bearing needs to be replaced. However, the main drive shaft bearing is currently located on the chain support frame. Since the chain support frame is a one-piece structure, replacing the main drive shaft bearing requires replacing the entire chain support frame, which is time-consuming, labor-intensive, and expensive to purchase a new chain support frame. Utility Model Content
[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a split-type chain support frame for a shredder, so as to save maintenance time and maintenance costs.
[0004] This utility model is achieved through the following technical solution:
[0005] A split-type chain support frame for a shredder includes a support frame body. Upper chain supports are respectively provided on the left and right sides of the support frame body. The front and rear ends of the two upper chain supports are respectively a drive shaft mounting end and a driven shaft mounting end. A drive shaft mounting assembly is detachably mounted on the drive shaft mounting end of each of the left and right upper chain supports. The drive shaft mounting assembly includes a drive shaft mounting insert, which has a mounting hole for mounting a drive bearing end cap. The rear end of the drive shaft mounting insert is inserted into the front end of the corresponding upper chain support, and the two are locked together by a locking mechanism.
[0006] As a preferred embodiment of the above-mentioned chain support frame, the front end of the upper chain support is provided with a vertically extending T-shaped groove, and the rear end of the drive shaft mounting insert is provided with a T-shaped protrusion. The drive shaft mounting insert and the upper chain support are connected and engaged by the T-shaped protrusion and the T-shaped groove.
[0007] As a preferred embodiment of the aforementioned chain support frame, the locking mechanism includes at least two through pins. The T-shaped protrusion of the drive shaft mounting insert has at least two first through holes, and the upper chain bracket has at least two second through holes at the corresponding T-shaped groove. Each second through hole of the upper chain bracket corresponds one-to-one with each first through hole on the T-shaped protrusion, and the number of through pins is equal to the number of second through holes of the upper chain bracket. By passing each through pin through the corresponding first and second through holes, the T-shaped protrusion and the upper chain bracket are locked together.
[0008] This invention has the following advantages over the prior art:
[0009] This utility model provides a split-type chain support frame for a shredder. The chain support frame is designed as a split structure comprising a support frame body and two drive shaft mounting inserts. The two drive shaft mounting inserts are detachably connected to the support frame body. When the drive shaft mounting inserts wear out, only the drive shaft mounting inserts need to be replaced, without replacing the entire chain support frame, thus saving maintenance costs. Furthermore, replacement only requires removing and installing the pins, making the disassembly and assembly process convenient and quick, shortening maintenance time and reducing maintenance labor intensity. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of this utility model.
[0011] Figure 2 This is a structural schematic diagram from another perspective of this utility model.
[0012] Figure 3 This is a schematic diagram of the drive shaft mounting insert of this utility model.
[0013] The following numbers are labeled in the diagram: 1. Support frame body; 2. Upper chain bracket; 3. Passive shaft mounting end; 4. Active shaft mounting insert; 5. Mounting hole; 6. T-shaped groove; 7. T-shaped protrusion; 8. First through hole; 9. Second through hole. Detailed Implementation
[0014] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.
[0015] See Figures 1 to 3 This embodiment discloses a split-type chain support frame for a shredder, including a support frame body 1. Upper chain supports 2 are respectively provided on the left and right sides of the support frame body 1. The front and rear ends of the two upper chain supports 2 are respectively a drive shaft mounting end and a driven shaft mounting end 3. The driven shaft mounting end 3 is used to install a driven bearing end cover. Drive shaft mounting assemblies are detachably installed on the drive shaft mounting ends of the left and right upper chain supports 2. The drive shaft mounting assembly includes a drive shaft mounting insert 4, which has mounting holes 5 for installing drive bearing end covers. The rear end of the drive shaft mounting insert 4 is inserted into the front end of the corresponding upper chain support 2, and the two are locked together by a locking mechanism. The two drive bearing end covers are used to rotatably install the drive shaft that drives the chain, and the two driven bearing end covers are used to rotatably install the driven shaft.
[0016] The upper chain support 2 has a vertically extending T-shaped groove 6 at its front end, and a T-shaped protrusion 7 at its rear end. The upper chain support 2 is engaged with the drive shaft mounting insert 4 via the T-shaped protrusion 7 and the T-shaped groove 6. The locking mechanism includes at least two through pins. The T-shaped protrusion 7 of the drive shaft mounting insert 4 has at least two first through holes 8, and the upper chain support 2 has at least two second through holes 9 at the corresponding T-shaped groove 6. Each second through hole 9 of the upper chain support 2 corresponds one-to-one with each first through hole 8 on the T-shaped protrusion 7, and the number of through pins is equal to the number of second through holes 9 of the upper chain support 2. By passing through the corresponding first through hole 8 and second through hole 9, the T-shaped protrusion 7 and the upper chain support 2 are locked together.
[0017] In this embodiment, the T-shaped protrusion 7 has three first through holes 8, and the upper chain support 2 has three second through holes 9. The drive shaft mounting insert 4 and the upper chain support 2 are connected by a T-shaped insertion structure and a through pin, ensuring a stable installation of both and thus guaranteeing the overall strength of the chain support frame.
[0018] During installation, the T-shaped protrusion 7 at the rear end of the drive shaft mounting insert 4 is inserted into the T-shaped groove 6 at the front end of the corresponding upper chain bracket 2, and three through pins are passed through the first through hole 8 and the second through hole 9 respectively. Each through pin is interference-fitted with the second through hole 9 on the upper chain bracket 2, thus completing the installation of the drive shaft mounting insert 4 and the upper chain bracket 2.
[0019] When the drive shaft mounting insert 4 becomes severely worn after prolonged use, it can be easily removed by simply unfastening the pin connecting the drive shaft mounting insert 4 to the upper chain support 2, and then removing the drive shaft mounting insert 4 from the T-shaped groove 6 of the upper chain support 2. A new drive shaft mounting insert 4 can then be installed. Only the drive shaft mounting insert 4 needs to be replaced; the entire chain support frame does not need to be replaced, saving on maintenance costs. Furthermore, the entire disassembly and assembly process is convenient and quick, shortening maintenance time and reducing the labor intensity of maintenance.
[0020] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 split-type chain support frame for a shredder, comprising a support frame body, with upper chain supports respectively provided on the left and right sides of the support frame body, characterized in that: The front and rear ends of the two upper chain brackets are respectively the drive shaft mounting end and the driven shaft mounting end. The drive shaft mounting ends of the left and right upper chain brackets are respectively detachably equipped with drive shaft mounting assemblies. The drive shaft mounting assembly includes a drive shaft mounting insert. The drive shaft mounting insert has a mounting hole for mounting the drive bearing end cover. The rear end of the drive shaft mounting insert is inserted into the front end of the corresponding upper chain bracket and the two are locked together by a locking mechanism.
2. The split-type chain support frame for a shredder as described in claim 1, characterized in that: The upper chain support has a vertically extending T-shaped groove at the front end and a T-shaped protrusion at the rear end of the drive shaft mounting insert. The drive shaft mounting insert and the upper chain support are connected by the T-shaped protrusion and the T-shaped groove.
3. The split-type chain support frame for a shredder as described in claim 2, characterized in that: The locking mechanism includes at least two through pins. The T-shaped protrusion of the drive shaft mounting block has at least two first through holes, and the upper chain bracket has at least two second through holes at the corresponding T-shaped groove. Each second through hole of the upper chain bracket corresponds one-to-one with each first through hole on the T-shaped protrusion, and the number of through pins is equal to the number of second through holes of the upper chain bracket. By passing each through pin through the corresponding first and second through holes, the T-shaped protrusion and the upper chain bracket are locked together.