Novel elastic coupling
Through the guide design of the cone sleeve and limit sleeve of the new elastic coupling, the butt process between the driving shaft and the driven shaft is simplified, and the rapid connection and separation is achieved, solving the complex disassembly of existing couplings and improving transmission stability.
Patent Information
- Application Number
- CN202510805680.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-17
- Publication Date
- 2025-07-25
AI Technical Summary
Existing couplings require complex disassembly process when connecting or disassembly, especially when the position of the driving shaft and the driven shaft teeth change, resulting in inconvenient connection.
A new type of elastic coupling is designed. Through the cooperation of the cone sleeve and the limit shaft sleeve of the left rotating part and the right rotating part, the guide docking between the left arc dock shaft and the right arc dock shaft is realized, and the elastic connection is used to achieve the separation and connection of the transmission shaft at any time. The structure is simple and the transmission is stable.
The butt process of the coupling is simplified, and the rapid connection and separation between the driving shaft and the driven shaft are realized, and the transmission is stable and reliable.
Smart Images
Figure CN120367955A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of couplings, and more specifically, to a novel elastic coupling. Background Art
[0002] A coupling, also known as a shaft coupling, is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms to rotate together and transmit motion and torque. Sometimes it is also used to connect the shaft to other parts (such as gears, pulleys, etc.). It is usually composed of two halves, which are respectively connected by keys or tight fits, fastened at both ends of the two shafts, and then the two halves are connected in some way. The coupling can also compensate for the offset (including axial offset, radial offset, angular offset or combined offset) between the two shafts due to reasons such as inaccurate manufacturing and installation, deformation during work, or thermal expansion; as well as relieve shock and absorb vibration.
[0003] Currently, the existing couplings need to be disassembled when connecting or disconnecting, and the process is quite complicated and inconvenient; especially during secondary docking, the tooth positions between the driving shaft and the driven shaft change, and it is necessary for people to manually adjust the teeth on the two shafts to the corresponding positions to engage, so as to realize the connection between the driving shaft and the driven shaft.
[0004] In order to solve the above problems, there is an urgent need for a novel elastic coupling. Summary of the Invention
[0005] The purpose of the present invention is to provide a novel elastic coupling to solve the problems raised in the above background art.
[0006] To achieve the above purpose, a novel elastic coupling is provided, which includes a left rotating part and a right rotating part, and the left rotating part can be meshed and connected with the right rotating part; The left rotating part includes a left arc-shaped docking shaft and a tapered sleeve. The left arc-shaped docking shaft is arranged in a circular hole at the center of the tapered sleeve, and an arc-shaped tooth structure is provided at the head of the left arc-shaped docking shaft; The right rotating part includes a right arc-shaped docking shaft, a bevel gear input shaft, a spring and a limit shaft sleeve. A shaft hole is provided at the center of the bevel gear input shaft. The right arc-shaped docking shaft is installed in the shaft hole through the spring, and the limit shaft sleeve is sleeved outside the bevel gear input shaft; The left arc-shaped docking shaft is movably connected with the right arc-shaped docking shaft.
[0007] Furthermore, an inwardly concave conical structure is provided at the end of the tapered sleeve, and a circular hole for the right arc-shaped docking shaft to pass through is also provided at the center of the limit shaft sleeve. A protruding conical structure is provided at the end of the limit shaft sleeve, and its end can be sleeved into the concave part of the tapered sleeve.
[0008] Further, the head of the right arc docking shaft is provided with an arc-shaped tooth groove structure, and the arc-shaped tooth structure of the left arc docking shaft can be inserted into the arc-shaped tooth groove structure of the right arc docking shaft to form meshing.
[0009] Further, the shaft hole is a variable-diameter structure. The left end part of the shaft hole is used for installing the right arc docking shaft and the spring, and its diameter is the largest. The diameter of the right end part is larger than that of the middle part and smaller than that of the left end part.
[0010] Further, a limiting groove is opened on the side wall of the left end part of the bevel gear input shaft. A limiting screw is threadedly connected to the side wall of the right arc docking shaft. The limiting screw can be limited and move in the limiting groove as the right arc docking shaft slides.
[0011] Further, a long screw is also threadedly connected to the tail of the right arc docking shaft. The long screw penetrates into the shaft hole of the right end part of the bevel gear input shaft and passes through the spring to be connected to the tail of the right arc docking shaft.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: By providing the taper sleeve and the limiting sleeve, it is possible to conveniently keep the central axes of the left arc docking shaft and the right arc docking shaft on the same straight line, playing a guiding role and facilitating subsequent docking. The drive shaft can be separated and connected at any time between the left arc docking shaft and the right arc docking shaft through an elastic connection method. Its structure is simple and the transmission is stable and reliable. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is a schematic structural diagram of the present invention; Figure 2 is an exploded view of the structure of the present invention; Figure 3 is an assembly drawing of the structure of the present invention.
[0014] The meanings of the various reference numerals in the figure are as follows: 1. Left arc docking shaft; 2. Taper sleeve; 3. Right arc docking shaft; 4. Bevel gear input shaft; 5. Spring; 6. Limiting sleeve; 7. Shaft hole; 8. Limiting groove; 9. Limiting screw; 10. Long screw. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0016] Those skilled in the art can understand that, unless specifically stated otherwise, the singular forms "a", "an" and "the" used herein may also include the plural forms. It should be further understood that the term "comprising" used in the specification of the present invention means the presence of the described features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or their groups.
[0017] Please refer to Figures 1-3 As shown, a new type of elastic coupling is provided, which includes a left rotating part and a right rotating part. The left rotating part can be meshed and connected with the right rotating part. Here, the left rotating part is connected to the driving mechanism as the power output end, while the right rotating part is connected to the driven mechanism. The left rotating part includes a left arc-shaped docking shaft 1 and a tapered sleeve 2. The left arc-shaped docking shaft 1 is arranged in the circular hole at the axis of the tapered sleeve 2, and the head of the left arc-shaped docking shaft 1 is provided with an arc-shaped tooth structure. The diameter of the circular hole of the tapered sleeve 2 is larger than the diameter of the left arc-shaped docking shaft 1 to ensure that the left arc-shaped docking shaft 1 can rotate freely without restriction, while the tapered sleeve 2 is connected to the outside of the driving mechanism. The right rotating part includes a right arc-shaped docking shaft 3, a bevel gear input shaft 4, a spring 5 and a limit bushing 6. A shaft hole 7 is opened at the axis of the bevel gear input shaft 4. The right arc-shaped docking shaft 3 is installed in the shaft hole 7 through the spring 5, and the limit bushing 6 is sleeved on the outside of the bevel gear input shaft 4. Similarly, the diameter of the circular hole opened in the middle of the limit bushing 6 is larger than the diameter of the right arc-shaped docking shaft 3 to ensure that the right arc-shaped docking shaft 3 can rotate freely. The cooperation between the limit bushing 6 and the tapered sleeve 2 can facilitate the docking of the left arc-shaped docking shaft 1 and the right arc-shaped docking shaft 3. The left arc-shaped docking shaft 1 is movably connected to the right arc-shaped docking shaft 3. In this embodiment, the end of the tapered sleeve 2 is provided with an inward concave conical structure. A circular hole for the right arc-shaped docking shaft 3 to pass through is also opened at the axis of the limit bushing 6. The end of the limit bushing 6 is provided with a protruding conical structure, and its end can be sleeved into the concave part of the tapered sleeve 2. After the limit bushing 6 and the tapered sleeve 2 are connected, the central axis of the left arc-shaped docking shaft 1 is kept on the same straight line as the central axis of the right arc-shaped docking shaft 3, playing a guiding role and facilitating subsequent docking. As Figure 1 and Figure 2 shown, the head of the right arc-shaped docking shaft 3 is provided with an arc-shaped tooth groove structure. The arc-shaped tooth structure of the left arc-shaped docking shaft 1 can be inserted into the arc-shaped tooth groove structure of the right arc-shaped docking shaft 3 to form meshing. Here, the left arc-shaped docking shaft 1 and the right arc-shaped docking shaft 3 are similar to the male and female seat structures of a socket. As Figure 1As shown, the shaft hole 7 has a stepped structure. The left end part of the shaft hole 7 is used to install the right arc-shaped docking shaft 3 and the spring 5, and has the largest diameter. The diameter of the right end part is larger than that of the middle part and smaller than that of the left end part. A limiting groove 8 is provided on the side wall of the left end part of the bevel gear input shaft 4. A limiting screw 9 is threadedly connected to the side wall of the right arc-shaped docking shaft 3. The limiting screw 9 can be limited to move within the limiting groove 8 as the right arc-shaped docking shaft 3 slides. The limiting screw 9 allows the right arc-shaped docking shaft 3 to slide along the direction of the shaft hole 7, but due to the limitation of the limiting screw 9, the right arc-shaped docking shaft 3 cannot rotate inside the shaft hole 7. After the right arc-shaped docking shaft 3 completes the docking with the left arc-shaped docking shaft 1, the right arc-shaped docking shaft 3 will drive the bevel gear input shaft 4 to rotate synchronously.
[0018] As Figure 1 shown, a long screw 10 is also threadedly connected to the tail of the right arc-shaped docking shaft 3. The long screw 10 penetrates from the shaft hole 7 of the right end part of the bevel gear input shaft 4 and passes through the spring 5 to be connected to the tail of the right arc-shaped docking shaft 3; from Figure 1 it can be seen that the right arc-shaped docking shaft 3 and the long screw 10 can slide left and right inside the shaft hole 7, but the sliding distance of the two is limited because both the diameter of the right arc-shaped docking shaft 3 and the diameter of the end part of the long screw 10 are larger than the diameter of the middle part of the shaft hole 7. Such a design can prevent the right arc-shaped docking shaft 3 from disengaging from the shaft hole 7.
[0019] Working principle: When the left rotating part is about to dock with the right rotating part, first, through the cooperation of the taper sleeve 2 and the limiting bush 6, it is convenient to align the left arc-shaped docking shaft 1 with the right arc-shaped docking shaft 3. At this time, although the two are aligned, it cannot be guaranteed that they are precisely meshed together. Drive the left arc-shaped docking shaft 1 to rotate by using the driving mechanism. When the arc-shaped tooth-like structure at the head of the left arc-shaped docking shaft 1 abuts against the teeth at the head of the right arc-shaped docking shaft 3, the right arc-shaped docking shaft 3 will slide to the right along the shaft hole 7. Here, since the limiting screw 9 is stuck in the limiting groove 8, the right arc-shaped docking shaft 3 cannot rotate inside the shaft hole 7 and can only slide left and right. Subsequently, the driving mechanism continues to drive the left arc-shaped docking shaft 1 to rotate. When the arc-shaped tooth-like structure at the head of the left arc-shaped docking shaft 1 aligns with the arc-shaped tooth groove structure at the head of the right arc-shaped docking shaft 3, the right arc-shaped docking shaft 3 is no longer pressed by the left arc-shaped docking shaft 1 and slides to the left to return to its original position under the action of the spring 5. At this time, the arc-shaped tooth-like structure just snaps into the arc-shaped tooth groove structure, and the left arc-shaped docking shaft 1 completes the docking with the right arc-shaped docking shaft 3, thereby realizing the power transmission; during installation, it is necessary to deliberately align the tooth groove, and the connection of the transmission structure can be quickly realized through the rotation of the structure itself. During disassembly, for the fixed structure or the limiting structure between the two, only by separating the left arc-shaped docking shaft 1 from the right arc-shaped docking shaft 3 can the power be quickly cut off.
[0020] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.
Claims
1. A new type of elastic coupling, comprising a left rotating part and a right rotating part, characterized in that: The left rotating part can be meshed and connected with the right rotating part; The left rotating part includes a left arc-shaped docking shaft (1) and a taper sleeve (2). The left arc-shaped docking shaft (1) is arranged in a circular hole at the axis of the taper sleeve (2), and an arc-shaped tooth-like structure is provided at the head of the left arc-shaped docking shaft (1); The right rotating part includes a right arc-shaped docking shaft (3), a bevel gear input shaft (4), a spring (5) and a limit bushing (6). A shaft hole (7) is provided at the axis of the bevel gear input shaft (4). The right arc-shaped docking shaft (3) is installed in the shaft hole (7) through the spring (5), and the limit bushing (6) is sleeved outside the bevel gear input shaft (4); The left arc-shaped docking shaft (1) is movably connected with the right arc-shaped docking shaft (3).
2. The novel elastic coupling according to claim 1, characterized in that: The end of the taper sleeve (2) is provided with an inward concave conical structure. A circular hole for the right arc-shaped docking shaft (3) to pass through is also provided at the axis of the limit bushing (6). The end of the limit bushing (6) is provided with a protruding conical structure, and its end can be sleeved into the concave part of the taper sleeve (2).
3. The novel elastic coupling according to claim 2, wherein: The head of the right arc-shaped docking shaft (3) is provided with an arc-shaped tooth groove structure, and the arc-shaped tooth-like structure of the left arc-shaped docking shaft (1) can be inserted into the arc-shaped tooth groove structure of the right arc-shaped docking shaft (3) to form a meshing.
4. The novel elastic coupling according to claim 3, wherein: The shaft hole (7) is a variable-diameter structure. The left end part of the shaft hole (7) is used for installing the right arc-shaped docking shaft (3) and the spring (5), and its diameter is the largest. The diameter of the right end part is larger than that of the middle part and smaller than that of the left end part.
5. A novel elastic coupling according to claim 4, characterized in that: A limit groove (8) is provided on the side wall of the left end part of the bevel gear input shaft (4). The side wall of the right arc-shaped docking shaft (3) is threadedly connected with a limit screw (9), and the limit screw (9) can be limited and moved in the limit groove (8) as the right arc-shaped docking shaft (3) slides.
6. A novel elastic coupling according to claim 5, characterized in that: A long screw (10) is also threadedly connected to the tail of the right arc-shaped docking shaft (3). The long screw (10) penetrates into the shaft hole (7) of the right end part of the bevel gear input shaft (4) and passes through the spring (5) to be connected with the tail of the right arc-shaped docking shaft (3).