Transmission shaft with buffer device
By incorporating a rubber ring and spring structure into the drive shaft, the lack of buffering in traditional drive shafts is solved, achieving the effects of mitigating impact and vibration, extending service life, and reducing lubricant loss.
Patent Information
- Application Number
- CN202520785845.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-11-28
- Estimated Expiration
- 2035-04-23
AI Technical Summary
In traditional drive shafts, there is a lack of buffering devices between the intermediate shaft and the spline coupling, which causes impact forces and vibrations to be transmitted directly, resulting in deformation and wear of the drive shaft, affecting its performance and lifespan.
A rubber ring and spring structure is installed between the intermediate shaft and the spline coupling. The impact force and vibration are dispersed by the compression of the rubber ring and the elasticity of the spring. Combined with the scraping of lubricant by the elastic pads in the spline groove of the rubber ring, the loss is reduced.
It effectively reduces the impact and vibration between the intermediate shaft and the spline coupling, extends the service life of the drive shaft, improves the performance, and reduces lubricant loss.
Smart Images
Figure CN223609148U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to transmission shaft technical field, concretely is a transmission shaft with buffer device. BACKGROUND
[0002] Transmission shaft is an important component in mechanical transmission system, is used for transmitting power and torque, it is usually composed of intermediate shaft, flange plate, bearing seat and other components, is an important component in mechanical transmission system, is widely used in the field such as automobile, ship, engineering machinery, the traditional transmission shaft design, the connection between intermediate shaft and spline coupling usually adopts direct plug-in mode, this structure is simple and reliable, but there are some problems in the actual application process.
[0003] In the prior art, when the traditional transmission shaft is used, there is no special buffer device between the intermediate shaft and the spline coupling, when the transmission shaft is impacted or vibrated, these forces will be directly transmitted to the transmission shaft, resulting in deformation and wear of the transmission shaft, which not only affects the use effect of the transmission shaft, but also reduces its service life.
[0004] Therefore, a transmission shaft with a buffer device is needed to solve the problem that the existing transmission shaft cannot effectively reduce the impact or vibration between the intermediate shaft and the spline coupling, thereby causing the transmission shaft to be easily worn and affecting its use effect. UTILITY MODEL CONTENTS
[0005] The utility model aims at providing a transmission shaft with a buffer device to solve the problems raised in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: a transmission shaft with a buffer device, comprising an intermediate shaft, a spline coupling, a universal joint and a flange plate, a middle part of the intermediate shaft is provided with a plug-in slot, an inner wall of the plug-in slot is provided with a plurality of convex parts, an inner right side of the intermediate shaft is provided with a moving slot, an inner wall of the moving slot is provided with a plug-in ring, a right side of the plug-in ring is provided with a rubber ring, a left part of the spline coupling is provided with a plurality of spline grooves.
[0007] Preferably, a plurality of sliding grooves are formed in the inner right side of the intermediate shaft, a connecting plate is installed on the inner wall of the sliding groove, a fixed rod is installed on one side of the connecting plate, and a spring is installed on the other side.
[0008] Preferably, the left end of the spring is installed on the inner wall of the sliding groove, and the spring is in a compressed state, the right end of the fixed rod penetrates the moving slot and is installed between the plug-in ring, and a plurality of fixed rods are arranged in a ring shape around the center of the plug-in slot.
[0009] The right part of the convex part is provided with a through hole, the inner ring wall of the rubber ring is provided with a plurality of elastic tabs, and the right side of the inner ring wall of the rubber ring is provided with a fixing ring.
[0010] Preferably, the left side of the elastic tab is attached to the right side of the convex part, and the elastic tab is inserted into the inner wall of the spline groove, and the plurality of elastic tabs are arranged in a ring shape around the center of the rubber ring.
[0011] Preferably, the fixing ring is installed on the right side of the plurality of elastic tabs.
[0012] Preferably, the convex part is inserted into the inner wall of the spline groove, the left part of the spline shaft is inserted into the inner wall of the insertion groove, the right side of the rubber ring is attached to the spline shaft, and the left side is attached to the intermediate shaft.
[0013] Compared with the prior art, the beneficial effects of the utility model are:
[0014] The transmission shaft with a buffer device provided by the utility model, through the insertion process of the spline shaft and the intermediate shaft, the rubber ring is extruded and pushes the connecting ring to move left along the inner wall of the moving groove, so that the plurality of springs are compressed, thereby dispersing the impact force and vibration from the spline shaft to the left, further reducing the impact between them, and increasing the service life of the transmission shaft and the spline shaft, improving the overall transmission effect and service life, and using the elastic force of the spring, the rubber ring can be reset, so as to reduce the impact and vibration when the spline shaft moves to the left again, thereby improving the use effect of the transmission shaft. BRIEF DESCRIPTION OF DRAWINGS
[0015] Figure 1 It is a perspective view of the utility model;
[0016] Figure 2 It is a schematic view of the rubber ring structure of the utility model;
[0017] Figure 3 It is a schematic view of the intermediate shaft structure of the utility model;
[0018] Figure 4 It is Figure 3 the structure section view of A-A;
[0019] Figure 5 It is Figure 4 the enlarged view of B structure;
[0020] Figure 6 It is a schematic view of the fixing ring structure of the utility model;
[0021] Figure 7 It is a schematic view of the elastic tab structure of the utility model.
[0022] In the figure: 1, intermediate shaft; 2, spline coupling; 3, universal joint; 4, flange plate; 5, rubber ring; 6, spline groove; 7, protruding part; 8, insertion slot; 9, spring; 10, sliding groove; 11, connecting plate; 12, fixed rod; 13, insertion ring; 14, elastic tab; 15, moving groove; 16, fixed ring; 17, through hole. DETAILED DESCRIPTION
[0023] In order to make the purpose, technical scheme of the utility model to carry out clearly, complete description, and the advantage is more clear and distinct, the following combining with the figure to the utility model embodiment carries out further detailed explanation.Should understand, the specific embodiment described here is a part of the embodiment of the utility model, instead of all the embodiments, only to explain the embodiment of the utility model, and is not used to limit the embodiment of the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belongs to the scope of the utility model protection.
[0024] Embodiment one: please refer to Figures 1-7 The utility model provides a kind of technical scheme: a transmission shaft with buffer device, including intermediate shaft 1, spline coupling 2, universal joint 3 and flange plate 4, its flange plate 4 is used to connect and fixed transmission shaft, universal joint 3 allows transmission shaft to transmit power when angle changes, keep the continuity of power transmission, the middle part of intermediate shaft 1 is provided with insertion slot 8, the inner wall of insertion slot 8 is installed with multiple protruding parts 7, the inside right side of intermediate shaft 1 is provided with moving groove 15, insertion ring 13 is inserted in the inner wall of moving groove 15, the right side of insertion ring 13 is installed with rubber ring 5, the left part of spline coupling 2 is provided with multiple spline grooves 6;Protruding part 7 is inserted in the inner wall of spline groove 6, the left part of spline coupling 2 is inserted in the inner wall of insertion slot 8, to be inserted between protruding part 7 and spline groove 6, let intermediate shaft 1 and spline coupling 2 reciprocating insertion, the right side of rubber ring 5 and spline coupling 2 are attached, and left side and intermediate shaft 1 are attached, to slow down the impact and vibration between intermediate shaft 1 and spline coupling 2 by the setting of rubber ring 5, to improve the service life of transmission shaft in turn.
[0025] Because the left part of spline coupling 2 will be inserted in the inner wall of insertion slot 8, so that spline groove 6 moves along the outside of protruding part 7, at this time, because the right end of intermediate shaft 1 is provided with rubber ring 5, in turn, spline coupling 2 pushes and pushes rubber ring 5 to left, and drives insertion ring 13 to move left along the inner wall of moving groove 15, to slow down the impact and vibration when spline coupling 2 inserts left by the cooperation between rubber ring 5, and reduce the vibration and impact force received by entire transmission shaft, to improve the service life of transmission shaft in turn.
[0026] In order to realize the use of the spring 9 to slow down the shock and impact between the intermediate shaft 1 and the spline shaft coupling 2, a plurality of sliding grooves 10 are arranged on the right side of the inner part of the intermediate shaft 1, the inner wall of the sliding groove 10 is provided with a connecting plate 11, one side of the connecting plate 11 is provided with a fixed rod 12, and the other side is provided with a spring 9; the left end of the spring 9 is installed on the inner wall of the sliding groove 10, and the spring 9 is in a compressed state, so that when the spline shaft coupling 2 is inserted into the inner wall of the plug-in slot 8 to the left, the spring 9 is squeezed and pushed, and the impact and shock received by the intermediate shaft 1 is dispersed, thereby improving the service life of the transmission shaft, and the right end of the fixed rod 12 penetrates the moving groove 15 and is installed between the plug-in ring 13, and a plurality of fixed rods 12 are arranged in a ring shape around the center of the plug-in slot 8, thereby facilitating the resetting of the rubber ring 5.
[0027] Because the right end of the intermediate shaft 1 is provided with the rubber ring 5, the spline shaft coupling 2 pushes the rubber ring 5 to the left, and drives the plug-in ring 13 to move left along the inner wall of the moving groove 15, at the same time, drives the four fixed rods 12 to push the connecting plate 11 to the left, thereby making the spring 9 in the sliding groove 10 in a compressed state, thereby using the cooperation between the spring 9, the plug-in ring 13 and the rubber ring 5 to slow down the impact and shock when the spline shaft coupling 2 is inserted to the left, and reduce the shock and impact force received by the entire transmission shaft, thereby improving the service life of the transmission shaft, and when the spline shaft coupling 2 moves to the right, the elastic force of the spring 9 is used to push the connecting plate 11 to the right, and drive the left side of the rubber ring 5 to separate from the right side of the intermediate shaft 1, for subsequent use.
[0028] In order to realize the use of the spring 9 to slow down the shock and impact between the intermediate shaft 1 and the spline shaft coupling 2, a plurality of sliding grooves 10 are arranged on the right side of the inner part of the intermediate shaft 1, the inner wall of the sliding groove 10 is provided with a connecting plate 11, one side of the connecting plate 11 is provided with a fixed rod 12, and the other side is provided with a spring 9; the left end of the spring 9 is installed on the inner wall of the sliding groove 10, and the spring 9 is in a compressed state, so that when the spline shaft coupling 2 is inserted into the inner wall of the plug-in slot 8 to the left, the spring 9 is squeezed and pushed, and the impact and shock received by the intermediate shaft 1 is dispersed, thereby improving the service life of the transmission shaft, and the right end of the fixed rod 12 penetrates the moving groove 15 and is installed between the plug-in ring 13, and a plurality of fixed rods 12 are arranged in a ring shape around the center of the plug-in slot 8, thereby facilitating the resetting of the rubber ring 5.
[0029] When the spline coupling 2 moves to the right, at this time, since the inner ring of the rubber ring 5 is provided with a plurality of elastic tabs 14, and the elastic tabs 14 are inserted into the inner wall of the spline groove 6, the excess lubricant adhered to the inner wall of the spline groove 6 is scraped by the elastic tabs 14 to reduce the loss of lubricant, when the spline coupling 2 is inserted into the inner wall of the insertion groove 8 again, at this time, the rubber ring 5 will be pushed again, and the plurality of elastic tabs 14 will be moved to the left and fit the right side of the protruding part 7, at the same time, the lubricant on one side of the elastic tabs 14 is pushed to the inner wall of the through hole 17, when pushed many times, the lubricant will be transported to the inner wall of the insertion groove 8 through the other end of the through hole 17, thereby improving the use effect of the intermediate shaft 1, and the setting of the fixing ring 16 prevents the elastic tabs 14 from deforming too much to the right, which causes the surface lubricant to be thrown out, thereby increasing the effect of lubricant recovery.
[0030] In actual use, since the left part of the spline coupling 2 is inserted into the inner wall of the insertion groove 8, the spline groove 6 moves along the outer side of the protruding part 7, at this time, since the right end of the intermediate shaft 1 is provided with the rubber ring 5, the spline coupling 2 pushes the rubber ring 5 to the left, and the insertion ring 13 moves to the left along the inner wall of the moving groove 15, at the same time, the four fixing rods 12 push the connecting plate 11 to the left, and the spring 9 is in a compressed state in the inner wall of the sliding groove 10, thereby reducing the impact and vibration when the spline coupling 2 is inserted to the left by the cooperation between the spring 9, the insertion ring 13 and the rubber ring 5, and reducing the vibration and impact force received by the entire transmission shaft, thereby improving the service life of the transmission shaft, and when the spline coupling 2 moves to the right, at this time, since the inner ring of the rubber ring 5 is provided with a plurality of elastic tabs 14, and the elastic tabs 14 are inserted into the inner wall of the spline groove 6, the excess lubricant adhered to the inner wall of the spline groove 6 is scraped by the elastic tabs 14 to reduce the loss of lubricant, when the spline coupling 2 is inserted into the inner wall of the insertion groove 8 again, at this time, the rubber ring 5 will be pushed again, and the plurality of elastic tabs 14 will be moved to the left and fit the right side of the protruding part 7, at the same time, the lubricant on one side of the elastic tabs 14 is pushed to the inner wall of the through hole 17, when pushed many times, the lubricant will be transported to the inner wall of the insertion groove 8 through the other end of the through hole 17, thereby improving the use effect of the intermediate shaft 1, and the setting of the fixing ring 16 prevents the elastic tabs 14 from deforming too much to the right, which causes the surface lubricant to be thrown out, thereby increasing the effect of lubricant recovery.
[0031] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A propeller shaft with built-in damper, comprising a middle shaft (1), a spline coupling (2), a universal joint (3) and a flange plate (4), characterized in that: The middle part of the intermediate shaft (1) is provided with an insertion slot (8), the inner wall of the insertion slot (8) is provided with a plurality of protruding parts (7), the right side of the inside of the intermediate shaft (1) is provided with a moving slot (15), the inner wall of the moving slot (15) is inserted with an insertion ring (13), the right side of the insertion ring (13) is provided with a rubber ring (5), the left part of the spline shaft coupling (2) is provided with a plurality of spline grooves (6).
2. A propeller shaft with built-in damper according to claim 1, characterized in that: The right side of the inside of the intermediate shaft (1) is provided with a plurality of sliding grooves (10), the inner wall of the sliding groove (10) is provided with a connecting plate (11), one side of the connecting plate (11) is provided with a fixed rod (12), and the other side is provided with a spring (9).
3. A propeller shaft with built-in cushioning according to claim 2, characterized in that: The left end of the spring (9) is installed on the inner wall of the sliding groove (10), and the spring (9) is in a compressed state, the right end of the fixed rod (12) penetrates the moving slot (15), and is installed between the insertion ring (13), and a plurality of fixed rods (12) are arranged in a ring shape around the center of the insertion slot (8).
4. The self-buffered propeller shaft of claim 1, wherein: The right part of the protruding part (7) is provided with a through hole (17), the inner ring wall of the rubber ring (5) is provided with a plurality of elastic tabs (14), and the right side of the inner ring wall of the rubber ring (5) is provided with a fixed ring (16).
5. A propeller shaft with integral cushioning according to claim 4, wherein: The left side of the elastic tab (14) is attached to the right side of the protruding part (7), and the elastic tab (14) is inserted into the inner wall of the spline groove (6), and a plurality of elastic tabs (14) are arranged in a ring shape around the center of the rubber ring (5).
6. A propeller shaft with integral cushioning according to claim 4, wherein: The fixed ring (16) is installed on the right side of the plurality of elastic tabs (14).
7. The self-buffered propeller shaft of claim 1, wherein: The protruding part (7) is inserted into the inner wall of the spline groove (6), the left part of the spline shaft coupling (2) is inserted into the inner wall of the insertion slot (8), the right side of the rubber ring (5) is attached to the spline shaft coupling (2), and the left side is attached to the intermediate shaft (1).