Damping transmission shaft connecting device convenient to disassemble for internal combustion engine
The installation and disassembly assembly, consisting of sliders, inserts, and compression springs, solves the problem of cumbersome disassembly of the internal combustion engine vibration damping drive shaft connection device, enabling convenient connection and disassembly processes and improving operational efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU NENGDONG MECHANICAL & ELECTRICAL EQUIP
- Filing Date
- 2025-06-19
- Publication Date
- 2026-04-17
AI Technical Summary
The existing internal combustion engine vibration damping drive shaft connection device is cumbersome to disassemble and maintain, requiring the loosening of multiple bolts one by one, which increases maintenance time and workload.
The installation and disassembly assembly consists of sliders, inserts, lead screws, and compression springs. The sliding connection between the slider and the slot and the precise movement of the insert enable convenient docking and fixing of the fly disc and the universal joint. The elastic force of the compression spring assists in inserting the insert, simplifying the disassembly process.
It enables convenient connection and disassembly of the frisbee and universal joint, simplifies the disassembly and installation process, and improves operational efficiency.
Smart Images

Figure CN224135025U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of vibration damping drive shaft connection devices, specifically a vibration damping drive shaft connection device for an internal combustion engine that is easy to disassemble. Background Technology
[0002] The easily detachable vibration-damping driveshaft connection device for internal combustion engines is a device used to reduce vibration and shock in internal combustion engine systems. It is mainly used in automobiles, industrial equipment and other mechanical systems driven by internal combustion engines. Its main purpose is to reduce the vibration generated during the connection of the driveshaft with other components through effective vibration-damping structural design, and to make the connected components easier to disassemble and maintain.
[0003] However, in use, the internal combustion engine includes a rotating disc, which is generally driven by the output shaft of the internal combustion engine. It is usually used to connect to other components of the transmission system. The disc is connected to the pump body (shaft) by a universal joint coupling and a high-elasticity coupling, which serves to displace and dampen vibrations. Since the disc is connected to the pump body (shaft) by a universal joint coupling and a high-elasticity coupling, it is fixed by a number of bolts. Although using multiple bolts for fixing can provide a strong connection, it can be cumbersome to disassemble and maintain. Each time it is disassembled, the bolts need to be loosened one by one, which increases maintenance time and workload. Utility Model Content
[0004] The purpose of this invention is to provide a vibration damping drive shaft connection device for internal combustion engines that is easy to disassemble, so as to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a vibration damping drive shaft connection device for easy disassembly of an internal combustion engine, comprising an installation and disassembly assembly, characterized in that: the installation and disassembly assembly includes a slider, the slider being slidably connected inside a first slot and a second slot, the first slot being opened inside a fly disc, the fly disc being a structural component mounted on an internal combustion engine, the second slot being opened inside a docking wheel, the docking wheel being mounted at both ends of a universal joint assembly, and a sliding groove being opened inside the upper end of the slider.
[0006] As a further preferred embodiment of this technical solution, the sliding groove is slidably connected to an insert block, and the insert block is rotatably connected to a lead screw, one end of which is disposed inside a miniature bearing.
[0007] As a further preferred embodiment of this technical solution, the insert is inserted into the inside of the slot, and the slot is located inside one end of the frisbee.
[0008] As a further preferred embodiment of this technical solution, a fixed block is provided at the upper end of the slot of the frisbee, a compression spring is provided inside the fixed block, and the lower end of the compression spring is provided at one end of a movable block, which can extend and retract within the fixed block.
[0009] As a further preferred embodiment of this technical solution, a plug rod is fixedly installed inside the movable block, the lower end of the plug rod is inserted into the inside of the plug block, and a handle is provided at the upper end of the plug rod.
[0010] As a further preferred embodiment of this technical solution, one end of the universal joint assembly is connected and fixed to the high-elasticity coupling assembly via fasteners.
[0011] As a further preferred embodiment of this technical solution, one end of the high-elasticity coupling assembly is connected and fixed to one end of the drive shaft body by using an installation and disassembly assembly, and the interior of the connecting disc at one end of the drive shaft body is provided with a first slot and a groove.
[0012] This utility model provides a vibration damping drive shaft connection device for internal combustion engines that is easy to disassemble, and has the following beneficial effects:
[0013] (1) This utility model uses a slider, a first slot and a second slot, an insert block and a slot. The slider is inserted into the inside of the flying disc and the docking wheel, and the flying disc and the docking wheel are docked by the slider. When the insert block is inserted into the slot of the flying disc, the connection between the flying disc, the docking wheel and the universal joint assembly will be firmly fixed. By the operator rotating the screw, the screw drives the insert block to move precisely in the sliding groove of the slider, ensuring that the insert block can accurately enter the slot, avoiding connection problems caused by inaccurate installation. The operator can easily complete the connection and fixation of the flying disc and the docking wheel of the universal joint. This easy-to-operate method simplifies the disassembly and installation process.
[0014] (2) When the handle is released, the compression spring pushes the plug rod downward by elastic force, and further inserts the plug rod into the plug block. This can further fix the flying disc, docking wheel, and universal joint, and at the same time make it easy to disassemble and install the flying disc, docking wheel, and universal joint. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;
[0016] Figure 2 This is a schematic diagram of the flying disc, slot, and first card slot structure of this utility model;
[0017] Figure 3 This is a schematic diagram of the transmission shaft body and connecting disc structure of this utility model;
[0018] Figure 4 This is a schematic diagram of the universal joint assembly structure of this utility model;
[0019] Figure 5 This is a schematic diagram of the docking wheel and the second slot structure of this utility model;
[0020] Figure 6 This is a schematic diagram of the disassembled structure of the installation and disassembly components of this utility model;
[0021] Figure 7 This is a schematic diagram of the slider and lead screw structure of this utility model;
[0022] Figure 8 This is a schematic diagram of the compression spring, moving block, and insert block structure of this utility model;
[0023] In the diagram: 100, drive shaft body; 101, fly disc; 102, slot; 103, first slot; 104, connecting disc; 200, high-elasticity coupling assembly; 300, universal joint assembly; 301, docking wheel; 400, installation and disassembly assembly; 401, slider; 402, second slot; 403, sliding groove; 404, insert block; 405, handle; 406, fixing block; 407, lead screw; 408, miniature bearing; 409, insert rod; 410, moving block; 411, compression spring; 500, fastener. Detailed Implementation
[0024] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Example
[0025] This utility model provides a technical solution: such as Figure 1-2 , Figure 4-7 As shown, a vibration damping drive shaft connection device for easy disassembly of an internal combustion engine includes an installation and disassembly assembly 400. The installation and disassembly assembly 400 includes a slider 401, which is slidably connected to the interior of a first slot 103 and a second slot 402. The first slot 103 is located inside a fly disc 101, which is a structural component mounted on the internal combustion engine. The second slot 402 is located inside a docking wheel 301, which is located at both ends of a universal joint assembly 300. A sliding groove 403 is provided inside the upper end of the slider 401. An insert 404 is slidably connected inside the sliding groove 403. A lead screw 407 is rotatably connected inside the insert 404. One end of the lead screw 407 is located inside a miniature bearing 408. The insert 404 is inserted into the slot 102, which is located inside one end of the fly disc 101.
[0026] In actual use, firstly, the operator connects one end of the universal joint to the docking wheel 301, making contact with one end of the flying disc 101. When connecting the flying disc 101 to the docking wheel 301 and the universal joint assembly 300, the slider 401 is inserted into the flying disc 101 and the docking wheel 301, and the flying disc 101 is docked with the docking wheel 301 through the slider 401. Then, the operator rotates the lead screw 407, and the lead screw 407 rotates inside the insert block 404, further driving the insert block 404 to move inside the sliding groove 403 of the slider 401, thereby moving the insert block 404 to be inserted into the slot 102 of the flying disc 101.
[0027] In this embodiment, the slider 401, the first slot 103 and the second slot 402, the insert 404, and the slot 102 are used to connect the flying disc 101 and the docking wheel 301. The slider 401 is inserted into the flying disc 101 and the docking wheel 301, and the flying disc 101 and the docking wheel 301 are docked through the slider 401. When the insert 404 is inserted into the slot 102 of the flying disc 101, the connection between the flying disc 101, the docking wheel 301, and the universal joint assembly 300 will be firmly fixed. When the operator rotates the lead screw 407, the lead screw 407 drives the insert 404 to move precisely in the sliding groove 403 of the slider 401, ensuring that the insert 404 can accurately enter the slot 102, avoiding connection problems caused by inaccurate installation. The operator can easily complete the connection and fixation of the flying disc 101 and the docking wheel 301 of the universal joint. This easy-to-operate method simplifies the disassembly and installation process. Example
[0028] like Figure 2 , Figure 6 , Figure 8As shown, a fixing block 406 is provided at the upper end of the slot 102 of the frisbee 101. A compression spring 411 is provided inside the fixing block 406. The lower end of the compression spring 411 is provided at one end of the movable block 410. The movable block 410 can extend and retract within the fixing block 406. A plug rod 409 is fixedly installed inside the movable block 410. The lower end of the plug rod 409 is inserted into the plug block 404. A handle 405 is provided at the upper end of the plug rod 409. In actual use, the operator manually pulls the handle 405 to further drive the plug rod 409. When the telescopic insertion rod 409 moves, it further drives the moving block 410 to move, thereby retracting the compression spring 411. When the insertion block 404 is inserted into the slot 102 of the flying disc 101, by releasing the handle 405, the compression spring 411 pushes the insertion rod 409 downward through its elastic force, further inserting the insertion rod 409 into the insertion block 404. This can further assist in fixing the flying disc 101 to the docking wheel 301 and the universal joint, and at the same time facilitate the disassembly and installation of the flying disc 101, the docking wheel 301 and the universal joint.
[0029] In this embodiment, when the handle 405 is released, the compression spring 411 pushes the insertion rod 409 downward by its elastic force, further inserting the insertion rod 409 into the insertion block 404. This further assists in fixing the flying disc 101 to the docking wheel 301 and the universal joint, while also facilitating the disassembly and installation of the flying disc 101, the docking wheel 301, and the universal joint. Example
[0030] like Figure 1 , Figure 3 As shown, one end of the universal joint assembly 300 is connected and fixed to the wheel 301 by fasteners 500 and the high elastic coupling assembly 200. One end of the high elastic coupling assembly 200 is connected and fixed to one end of the drive shaft body 100 by using the installation and removal assembly 400. The drive shaft body 100 has a first slot 103 and a slot 102 inside the connecting plate 104.
[0031] This utility model provides a vibration-damping drive shaft connection device for easy disassembly of an internal combustion engine. The specific working principle is as follows: The universal joint effectively compensates for angular and displacement deviations between the drive shaft and the fly disk 101, allowing for efficient power transmission under different angles and displacements. The high-elasticity coupling mainly uses elastic materials (such as rubber or elastic polymers) to connect the fly disk 101 and the drive shaft, absorbing vibrations, impacts, and torque fluctuations generated during engine operation. First, the operator connects one end of the universal joint to the docking wheel 301, making contact with one end of the fly disk 101. When connecting the fly disk 101 to the docking wheel 301 and the universal joint assembly 300, the slider 401 is inserted inside the fly disk 101 and the docking wheel 301, and the slider 401 connects the fly disk 101 to the docking wheel 301. Then, the operator rotates the lead screw 407... The lead screw 407 rotates inside the insert block 404, further driving the insert block 404 to move inside the sliding groove 403 of the slider 401, thereby moving the insert block 404 into the slot 102 of the flying disc 101. By manually pulling the handle 405, the operator can further drive the insert rod 409 to extend or retract. When the insert rod 409 moves, it further drives the moving block 410 to move, thereby retracting the compression spring 411. When the insert block 404 is inserted into the slot 102 of the flying disc 101, by releasing the handle 405, the compression spring 411 pushes the insert rod 409 downward through its elastic force, further inserting the insert rod 409 into the insert block 404. This can further assist in fixing the flying disc 101 to the docking wheel 301 and the universal joint, and at the same time facilitate the disassembly and installation of the flying disc 101, docking wheel 301 and universal joint.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A vibration-damping transmission shaft connecting device for an internal combustion engine, which is easily detachable, comprising a mounting and detaching assembly (400), characterized in that: The installation and disassembly assembly (400) includes a slider (401), which is slidably connected to the inside of a first slot (103) and a second slot (402). The first slot (103) is located inside the flying disc (101), which is a structural component mounted on an internal combustion engine. The second slot (402) is located inside the docking wheel (301), which is located at both ends of the universal joint assembly (300). A sliding groove (403) is provided inside the upper end of the slider (401).
2. The easily detachable vibration damping drive shaft connection device for an internal combustion engine according to claim 1, characterized in that: The sliding groove (403) is slidably connected to the insert (404), and the insert (404) is rotatably connected to the lead screw (407). One end of the lead screw (407) is located inside the miniature bearing (408).
3. A vibration-damping, disconnectable drive shaft coupling for an internal combustion engine as defined in claim 2, characterized in that: The insert (404) is inserted into the inside of the slot (102), which is located inside one end of the frisbee (101).
4. A vibration-damping, disconnectable drive shaft coupling for an internal combustion engine as defined in claim 1, characterized in that: A fixing block (406) is provided at the upper end of the slot (102) of the frisbee (101). A compression spring (411) is provided inside the fixing block (406). The lower end of the compression spring (411) is provided at one end of the moving block (410). The moving block (410) can extend and retract inside the fixing block (406).
5. A vibration-damping, disconnectable drive shaft coupling for an internal combustion engine as defined in claim 4, characterized in that: A rod (409) is fixedly installed inside the movable block (410). The lower end of the rod (409) is inserted into the inside of the plug block (404), and a handle (405) is provided at the upper end of the rod (409).
6. A vibration-damping, disconnectable drive shaft coupling for an internal combustion engine as defined in claim 1, characterized in that: One end of the universal joint assembly (300) is connected and fixed to the wheel disk (301) via fasteners (500) and the high-elasticity coupling assembly (200).
7. A vibration-damping, transmission shaft coupling for an internal combustion engine, according to claim 6, characterized in that: One end of the high-elasticity coupling assembly (200) is connected and fixed to one end of the drive shaft body (100) by using the installation and removal assembly (400). The drive shaft body (100) has a first slot (103) and a slot (102) inside the connecting disc (104) at one end.