Tension type plum coupling
Through the plum blossom block structure and tightening block design, the problem of high production cost of existing tightening plum blossom couplings is solved, and the coupling is simplified processing and stable connection are achieved.
Patent Information
- Application Number
- CN202423199992.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-09-02
- Estimated Expiration
- 2034-12-24
AI Technical Summary
The existing tightening plum blossom coupling requires two sets of equipment or more processing procedures during the production process, resulting in higher costs.
The plum blossom block structure is adopted, and the coupling structure is the same without the male and female heads. The machining process is simplified through the cooperation of plum blossom protrusions and arcuate grooves, and the tight connection of the coupling is achieved by using the design of the tightening block and the deformation plate.
The machining process of the coupling is simplified, the production cost is reduced, and the convenience of use and the stability of connection are improved.
Smart Images
Figure CN223294095U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of plum blossom couplings, in particular to a tensioning type plum blossom coupling. Background Art
[0002] Couplings are mechanical parts used to connect the driving shaft and driven shaft in different mechanisms so that they rotate together to transmit torque. The most commonly used coupling is the expansion type plum blossom coupling, which mainly connects the coupling and the shaft tightly together through the principle of extrusion and tightening.
[0003] In the prior art, couplings often use two different-shaped but fully overlapped male and female connectors at the connection point. While this type of connector is convenient to use, it is cumbersome to distinguish between the male and female connectors during both manufacturing and use. Therefore, the present invention proposes a tensioning plum blossom coupling to address this issue. Utility Model Content
[0004] The purpose of the present invention is to provide a tightening plum blossom coupling to solve the problem that the male and female couplings proposed in the above background technology are easy to use but require two sets of equipment or more processing procedures during the production process, which is costly.
[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a tensioning plum blossom coupling, comprising: a coupling cylinder, one end of each coupling cylinder is fixedly connected to a connecting block, one side of each connecting block is fixedly connected to a plurality of connecting columns, the other end of the coupling cylinder is equipped with a tensioning block, one end of the tensioning block is provided with a plurality of first screws, a plum blossom block is provided between the two connecting blocks, and a plurality of uniform plum blossom protrusions are provided around the plum blossom block.
[0006] Preferably, symmetrical arc-shaped grooves are provided on both sides of each plum blossom protrusion, and two protruding hemispheres are provided between every two connecting columns, and the arc-shaped grooves and the protruding hemispheres are matched with each other.
[0007] Preferably, a cylindrical groove is formed at one end of the coupling cylinder, and the cylindrical groove is arranged on the central axis of the coupling cylinder.
[0008] Preferably, an annular groove is provided at one end of the coupling cylinder, the centers of the cylindrical groove and the annular groove are connected, the annular groove wraps the cylindrical groove, a deformation plate is provided between the annular groove and the cylindrical groove, and an expansion gap is provided between every two adjacent deformation plates.
[0009] Preferably, a plurality of screw grooves are evenly opened at one end of the annular groove, the first screw passes through the tightening block and extends into the screw groove to be threadedly connected thereto, and one end of the tightening block extends into the annular groove and is slidably connected thereto.
[0010] Preferably, a central groove is provided at the center of each connecting block, a first through hole is provided at one end of each central groove, the cylindrical groove and the central groove are connected through the first through hole, and a second screw is provided in the first through hole.
[0011] Preferably, a sample shaft is provided in one of the cylindrical grooves, a connecting groove is provided at one end of the sample shaft, and the second screw passes through the first through hole and extends into the connecting groove to be threadedly connected thereto.
[0012] Compared with the prior art, the beneficial effects of the present invention are:
[0013] The utility model uses the plum blossom block and the related structure, effectively making the coupling structures at both ends of the plum blossom block identical and not distinguishing between male and female heads, so that the processing procedures between the couplings are simpler and the use is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of the utility model;
[0015] Figure 2 This is a schematic diagram of the structure of the plum blossom block of the utility model;
[0016] Figure 3 This is a schematic diagram of the internal structure of the coupling cylinder of the utility model;
[0017] Figure 4 This is a schematic structural diagram of half of the coupling of the utility model;
[0018] Figure 5 This is a schematic diagram of the cross-sectional structure of the tensioning block of the utility model;
[0019] Figure 6 This is a schematic structural diagram of the sample shaft of the present utility model.
[0020] In the figure: 1. Coupling cylinder; 2. Tensioning block; 3. First screw; 4. Connecting block; 5. Connecting column; 6. Plum blossom block; 7. Plum blossom protrusion; 8. Arc groove; 9. Sample shaft; 10. Annular groove; 11. Cylindrical groove; 12. Expansion gap; 13. Screw groove; 14. First through hole; 15. Deformation plate; 16. Protruding hemisphere; 17. Center groove; 18. Second screw; 19. Connecting groove. DETAILED DESCRIPTION
[0021] In order to clearly and completely describe the purpose and technical solution of the present invention and make its advantages more clearly understood, the following is a further detailed description of the embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention and are not intended to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0022] In the description of the present invention, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like, indicating positions or location relationships, are based on the positions or location relationships shown in the accompanying drawings and are intended only to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "one," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0024] For the purpose of simplicity and illustration, the principles of the embodiments are described primarily with reference to examples. In the following description, many specific details are provided to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures are not described in detail to avoid unnecessarily obscuring the understanding of these embodiments. In addition, all embodiments may be used in combination with each other.
[0025] Example 1
[0026] See also Figure 1-Figure 2The utility model provides a technical solution: a tensioning plum blossom coupling, comprising: a coupling cylinder 1, one end of each coupling cylinder 1 is fixedly connected to a connecting block 4, the connecting block 4 is used to connect two couplings, one side of each connecting block 4 is fixedly connected to a plurality of connecting columns 5, the connecting columns 5 are used to transmit kinetic energy between couplings, the other end of the coupling cylinder 1 is installed with a tensioning block 2, the tensioning block 2 plays a fixing role, one end of the tensioning block 2 is provided with a plurality of first screws 3, the plurality of first screws 3 are used to install and fix the tensioning block 2 and tighten it, and a tensioning block 2 is provided between the two connecting blocks 4. There is a plum blossom block 6, which plays a supporting role so that the two couplings will not collide with each other. A plurality of uniform plum blossom protrusions 7 are arranged around the plum blossom block 6. The plum blossom protrusions 7 are used to allow the connecting column 5 to be inserted between adjacent plum blossom protrusions 7. Symmetrical arc grooves 8 are opened on both sides of each plum blossom protrusion 7. Two raised hemispheres 16 are arranged between every two connecting columns 5. The arc grooves 8 and the raised hemispheres 16 are adapted to each other, and the raised hemispheres 16 can coincide with the arc grooves 8, so as to avoid the plum blossom block 6 breaking and flying out due to excessive force on the connecting shaft.
[0027] In actual use, the two connecting shafts need to be connected together through the plum blossom block 6. It is the presence of the plum blossom block 6 that reduces the friction between the two couplings and reduces the loss between the couplings. The arc-shaped groove 8 and the raised hemisphere 16 effectively fix the plum blossom block 6, so that the plum blossom block 6 moves as little as possible between the two couplings, so that its friction loss can be reduced.
[0028] Example 2
[0029] See also Figure 3 - Figure 5 On the basis of embodiment 1, a cylindrical groove 11 is provided at one end of the coupling cylinder 1. The cylindrical groove 11 is used to connect the rotating shaft. The cylindrical groove 11 is arranged on the central axis of the coupling cylinder 1. The sample shaft 9 can be inserted into the cylindrical groove 11. An annular groove 10 is provided at one end of the coupling cylinder 1. The annular groove 10 is used for tensioning. The centers of the cylindrical groove 11 and the annular groove 10 are the same. The annular groove 10 wraps the cylindrical groove 11. The annular groove 10 and the cylindrical groove 11 have the same insertion depth. A deformable plate 15 is provided between the annular groove 10 and the cylindrical groove 11. The deformation of this deformable plate The degree of deformation is small, and only slight changes can occur. An expansion gap 12 is provided between every two adjacent deformation plates 15. The expansion gap 12 is used for tightening. A plurality of screw grooves 13 are evenly provided at one end of the annular groove. Each screw groove 13 is provided with a thread. The first screw 3 passes through the tightening block 2 and extends into the screw groove 13 to be threadedly connected thereto. The first screw 3 is set longer. When tightening is required, the first screw 3 needs to be rotated to tighten it. One end of the tightening block 2 extends into the annular groove 10 and is slidably connected thereto. The tightness of the first screw 3 depends on the degree of tightening.
[0030] When tightening is required, first loosen the first screw 3, then place the sample shaft 9 into it, then fix the sample shaft 9 with the second screw 18, and finally turn the first screw 3. When turning the first screw 3, it cannot be turned to the bottom at once, but needs to be turned one by one step by step. The length of each rotation cannot be too long to ensure that the pressure caused by each screw is almost the same. During the rotation of the screw, the tensioning block 2 will slowly extend into the annular groove 10. Since one end of the tensioning block 2 is thicker, it will cause the deformation plate 15 to shrink in the box, so that multiple expansion gaps 12 are reduced in sequence, effectively squeezing and fixing the sample shaft 9.
[0031] Example 3
[0032] See also Figure 4-Figure 6 On the basis of the second embodiment, a center groove 17 is provided in the center of each connecting block 4, and the center groove 17 is used to place a second screw 18 to prevent it from affecting the connection of the two couplings. A first through hole 14 is provided at one end of each center groove 17, and the first through hole 14 passes through one end of the center groove 17. The cylindrical groove 11 and the center groove 17 are connected through the first through hole 14. A second screw 18 is provided in the first through hole 14, and a sample shaft 9 is provided in one of the cylindrical grooves 11. The sample shaft 9 is only an axis used during experiments and production, and is not a real axis. Compared with the real axis, it has the same thickness and end structure. A connecting groove 19 is provided at one end of the sample shaft 9. The connecting groove 19 is used for fixing to prevent the position of the sample shaft 9 from changing before expansion. The second screw 18 passes through the first through hole 14 and extends into the connecting groove 19 to be threadedly connected with it, so that the sample shaft 9 can be firmly fixed.
[0033] In actual use, the two connecting shafts need to be connected together through the plum blossom block 6. It is the presence of the plum blossom block 6 that reduces the friction between the two couplings and the loss between the couplings. The arc groove 8 and the raised hemisphere 16 effectively fix the plum blossom block 6, so that the plum blossom block 6 moves as little as possible between the two couplings, so that its friction loss can be reduced. When tightening is required, first loosen the first screw 3, then place the sample shaft 9 into it, and then fix the sample shaft 9 through the second screw 18, and finally turn the first screw 3. When turning the first screw 3, it cannot be turned to the bottom at once, and it needs to be turned one by one step by step. The length of each rotation cannot be too long to ensure that the pressure caused by each screw is almost the same. During the rotation of the screw, the tensioning block 2 will slowly extend into the annular groove 10. Since one end of the tensioning block 2 is thicker, the deformation plate 15 will shrink in the box, so that the multiple expansion gaps 12 will be reduced in turn, effectively squeezing and fixing the sample shaft 9.
[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A tensioning plum blossom coupling, comprising: A coupling cylinder (1) is characterized in that: one end of each coupling cylinder (1) is fixedly connected to a connecting block (4), one side of each connecting block (4) is fixedly connected to a plurality of connecting columns (5), a tightening block (2) is installed at the other end of the coupling cylinder (1), one end of the tightening block (2) is provided with a plurality of first screws (3), a plum blossom block (6) is provided between the two connecting blocks (4), and a plurality of uniform plum blossom protrusions (7) are provided around the plum blossom block (6).
2. The expansion type plum blossom coupling according to claim 1, characterized in that: Symmetrical arc-shaped grooves (8) are provided on both sides of each plum blossom protrusion (7), and two protruding hemispheres (16) are provided between each two connecting columns (5), and the arc-shaped grooves (8) and the protruding hemispheres (16) are adapted to each other.
3. The expansion type plum blossom coupling according to claim 2, characterized in that: One end of the coupling cylinder (1) is provided with a cylindrical groove (11), and the cylindrical groove (11) is arranged on the central axis of the coupling cylinder (1).
4. The expansion type plum blossom coupling according to claim 3, characterized in that: An annular groove (10) is provided at one end of the coupling cylinder (1), the cylindrical groove (11) and the annular groove (10) are communicated with each other at their centers, the annular groove (10) wraps around the cylindrical groove (11), a deformation plate (15) is provided between the annular groove (10) and the cylindrical groove (11), and an expansion gap (12) is provided between every two adjacent deformation plates (15).
5. The expansion type plum blossom coupling according to claim 4, characterized in that: One end of the annular groove (10) is evenly provided with a plurality of screw grooves (13), the first screw (3) passes through the tensioning block (2) and extends into the screw groove (13) to be threadedly connected thereto, and one end of the tensioning block (2) extends into the annular groove (10) and is slidably connected thereto.
6. The expansion type plum blossom coupling according to claim 5, characterized in that: A central groove (17) is provided at the center of each connecting block (4), a first through hole (14) is provided at one end of each central groove (17), the cylindrical groove (11) and the central groove (17) are connected via the first through hole (14), and a second screw (18) is provided in the first through hole (14).
7. The expansion type plum blossom coupling according to claim 6, characterized in that: A sample shaft (9) is provided in one of the cylindrical grooves (11), a connecting groove (19) is provided at one end of the sample shaft (9), and the second screw (18) passes through the first through hole (14) and extends into the connecting groove (19) to be threadedly connected thereto.