Elastomeric coupling

Abstract

The utility model discloses a kind of elastomer couplings, including two first half shaft sleeve and two second half shaft sleeve, the outer wall of two described first half shaft sleeve and two second half shaft sleeve is equipped with multiple notches, two first half shaft sleeve and two second half shaft sleeve are placed with elastomer plum blossom pad, the inner wall of one described first half shaft sleeve and second half shaft sleeve is equipped with rectangular locating groove.The utility model is cooperated with the design of rectangular locating block and rectangular locating groove, realizes the initial centering and merging of two first half shaft sleeve and two second half shaft sleeve;Two end sleeves are covered on two first half shaft sleeve and two second half shaft sleeve after merging, constrain two first half shaft sleeve and two second half shaft sleeve after merging, and the screw head of counterbore bolt is closed in, effectively prevent the risk that counterbore bolt is loosened due to vibration, impact, greatly improve the reliability and security of equipment operation.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to an elastic coupling. Background Technology

[0002] A flexible coupling is a mechanical device used to connect two rotating parts. It primarily transmits torque and motion while allowing a certain degree of axial and radial displacement to absorb vibration and shock, thus protecting the connected mechanical components from damage. A flexible coupling typically consists of two main parts: a toothed cylindrical shaft and a toothed circular housing, connected by an elastic material to achieve smooth transmission and cushioning.

[0003] In existing technologies, traditional couplings typically require operators to manually and precisely align the keyways on the shafts with the keyways on the hubs within a confined space, after installing the two coupling halves onto the motor shaft and the equipment shaft respectively. Simultaneously, the elastic shims must be compressed and accurately placed into the claw-shaped grooves on both hubs. This process is not only time-consuming and labor-intensive but also demands a high level of operator skill; even slight deviations can lead to installation difficulties or damage to the elastomer, affecting transmission efficiency and service life. Secondly, the axial fixing method presents inherent risks. Most traditional couplings rely solely on bolts for axial fixation. Under prolonged high torque, reversible rotation, or vibration and impact conditions, these bolts are prone to loosening, causing relative slippage (shaft misalignment) between the coupling and the shaft. This not only affects the stability of power transmission but also wears down the shaft surface, causing permanent damage to the equipment and incurring high maintenance costs. Therefore, we propose an elastomer coupling to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing an elastic coupling.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An elastomeric coupling includes two first half-shaft sleeves and two second half-shaft sleeves. Multiple slots are formed on the outer walls of each of the first and second half-shaft sleeves. An elastomeric perforated pad is placed between the two first and second half-shaft sleeves. A rectangular positioning groove is formed on the inner wall of one of the first and second half-shaft sleeves. A rectangular positioning block is fixedly connected to the inner wall of the other first and second half-shaft sleeves. End sleeves are threaded onto the outer walls of both the first and second half-shaft sleeves. A groove is formed on the inner wall of one of the first and second half-shaft sleeves. Positioning components are provided on the outer walls of both the first and second half-shaft sleeves.

[0007] Preferably, the positioning component includes two springs, the inner walls of the two grooves are fixedly connected to the bottom of the springs respectively, the tops of the two springs are fixedly connected to circular pads, the tops of the two circular pads are fixedly connected to positioning posts, and the outer walls of the two end sleeves are provided with positioning holes. The positioning component facilitates the positioning of the two end sleeves.

[0008] Preferably, the outer walls of both the first and second half-shaft sleeves are provided with threaded holes, and the inner walls of the threaded holes are threaded to connect existing countersunk bolts.

[0009] Preferably, the inner walls of both the first and second half-shaft sleeves are provided with keyways, which are connected to the existing motor shaft and equipment shaft.

[0010] Preferably, the outer walls of the circular pad and the positioning post are slidably connected to the inner wall of the groove, and the circular pad assists the positioning post in vertical up and down movement.

[0011] Preferably, the inner walls of the two positioning holes are slidably connected to the outer walls of the two positioning posts, respectively.

[0012] Compared with the prior art, the advantages of this utility model are:

[0013] This solution achieves initial alignment and merging of the two first half-shaft sleeves and the two second half-shaft sleeves through the cooperative design of rectangular positioning blocks and rectangular positioning grooves. The two end sleeves cover the merged two first half-shaft sleeves and two second half-shaft sleeves, constraining them and enclosing the screw heads of the countersunk bolts inside. This effectively prevents the risk of the countersunk bolts loosening due to vibration and impact, and greatly improves the reliability and safety of equipment operation. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a three-dimensional structural diagram of an elastic body coupling proposed in this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of an elastic body coupling proposed in this utility model;

[0017] Figure 3 This is a partial three-dimensional structural diagram of an elastic body coupling proposed in this utility model;

[0018] Figure 4 This utility model proposes an elastic body coupling. Figure 2 A magnified structural diagram of part A in the diagram.

[0019] In the figure: 1. First half-shaft sleeve; 2. Second half-shaft sleeve; 3. Groove; 4. Elastomer plum blossom pad; 5. Threaded hole; 6. Keyway; 7. Rectangular positioning groove; 8. Rectangular positioning block; 9. End sleeve; 10. Groove; 11. Spring; 12. Circular washer; 13. Positioning post; 14. Positioning hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0021] Depend on Figures 1-4 As shown, an elastic coupling is disclosed, comprising two first half-shaft sleeves 1 and two second half-shaft sleeves 2. The outer walls of the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2 are provided with multiple slots 3. The multiple slots 3 provide placement space for the elastic plum blossom pad 4, which can limit the elastic plum blossom pad 4 and prevent it from shifting during transmission.

[0022] An elastic plum blossom pad 4 is placed between the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2. The outer wall of one of the first half-shaft sleeves 1 and the second half-shaft sleeve 2 is provided with a threaded hole 5. By screwing in a countersunk bolt, the threaded end of the countersunk bolt is pressed against the motor shaft and the equipment shaft, thereby fixing the position of the first half-shaft sleeve 1 and the second half-shaft sleeve 2.

[0023] One of the first half-shaft sleeves 1 and the second half-shaft sleeve 2 has a keyway 6 on its inner wall, and one of the first half-shaft sleeves 1 and the second half-shaft sleeve 2 has a rectangular positioning groove 7 on its inner wall. The other first half-shaft sleeve 1 and the second half-shaft sleeve 2 have a rectangular positioning block 8 fixedly connected to their inner walls. When they are joined together, the rectangular positioning block 8 slides into the rectangular positioning groove 7 to provide positioning guidance for the joining of the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2, so as to facilitate quick alignment and joining.

[0024] The outer walls of the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2 are threaded with end sleeves 9. The two end sleeves 9 are screwed into the outer walls of the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2 respectively, which can make them into a whole and enhance the overall stability after the combination. On the other hand, the screw head of the countersunk bolt can be limited. The inner walls of one of the first half-shaft sleeves 1 and the second half-shaft sleeves 2 are provided with grooves 10.

[0025] The outer walls of the first half-shaft sleeve 1 and the second half-shaft sleeve 2 are provided with positioning components. The positioning components include two springs 11. The inner walls of the two grooves 10 are fixedly connected to the bottom of the springs 11 respectively. The tops of the two springs 11 are fixedly connected with circular pads 12. The outer walls of the circular pads 12 and the positioning post 13 are slidably connected to the inner walls of the grooves 10.

[0026] The tops of the two circular gaskets 12 are fixedly connected with positioning pins 13, and the outer walls of the two end sleeves 9 are provided with positioning holes 14. The inner walls of the two positioning holes 14 are slidably connected to the outer walls of the two positioning pins 13 respectively. When the positioning pins 13 are pressed, they are reset by the elastic force of the spring 11 and slide into the positioning holes 14, which can fix the position of the end sleeves 9 and ensure that the end sleeves 9 will not move at will during the operation. When the position of the end caps 9 is released, the positioning pins 13 are simply moved downward against the elastic force of the spring 11 to disengage them from the positioning holes 14.

[0027] Working principle: In use, the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2 are respectively fitted onto the existing motor shaft and equipment shaft. During merging, the rectangular positioning block 8 slides into the rectangular positioning groove 7, facilitating the merging of the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2. The two keyways 6 respectively engage with the key blocks on the motor shaft and equipment shaft to facilitate subsequent transmission. One end of each of the two end sleeves 9 is screwed into the outer wall of the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2, firstly merging the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2 into a single unit. The elastic plum blossom pad 4 is located within the two slots 3, and then passes through the two threaded holes. 5. Screw in the existing countersunk bolts respectively, so that the threaded ends of the two countersunk bolts are pressed against the motor shaft and the equipment shaft respectively, so that the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2 are fixed in position. Then continue to screw in the two end sleeves 9, so that the two positioning holes 14 slide into the positions of the two positioning pins 13 respectively. After the two positioning pins 13 are compressed, they are reset by the elastic force of the spring 11 and slide into the two positioning holes 14 respectively, so that the two end sleeves 9 are fixed in position. After the two end sleeves 9 are fixed in position, they can meet the overall stability of the two first half-shaft sleeves 1 and the two second half-shaft sleeves 2 after being combined, and limit the screw head of the two countersunk bolts to prevent them from loosening and moving outward.

[0028] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An elastic coupling, comprising two first half-shaft sleeves (1) and two second half-shaft sleeves (2), characterized in that, The outer walls of the two first half-shaft sleeves (1) and the two second half-shaft sleeves (2) are provided with multiple slots (3). An elastic plum blossom pad (4) is placed between the two first half-shaft sleeves (1) and the two second half-shaft sleeves (2). The inner walls of one of the first half-shaft sleeves (1) and the second half-shaft sleeves (2) are provided with rectangular positioning grooves (7). The inner walls of the other first half-shaft sleeves (1) and the second half-shaft sleeves (2) are fixedly connected with rectangular positioning blocks (8). The outer walls of the two first half-shaft sleeves (1) and the two second half-shaft sleeves (2) are threaded with end sleeves (9). The inner walls of one of the first half-shaft sleeves (1) and the second half-shaft sleeves (2) are provided with grooves (10). The outer walls of the first half-shaft sleeves (1) and the second half-shaft sleeves (2) are provided with positioning components.

2. The elastic coupling according to claim 1, characterized in that, The positioning assembly includes two springs (11), the inner walls of the two grooves (10) are fixedly connected to the bottom of the springs (11), the tops of the two springs (11) are fixedly connected to circular pads (12), the tops of the two circular pads (12) are fixedly connected to positioning pins (13), and the outer walls of the two end sleeves (9) are provided with positioning holes (14).

3. The elastic coupling according to claim 1, characterized in that, Both the first half-shaft sleeve (1) and the second half-shaft sleeve (2) have threaded holes (5) on their outer walls.

4. The elastic coupling according to claim 1, characterized in that, Both the first half-shaft sleeve (1) and the second half-shaft sleeve (2) have keyways (6) on their inner walls.

5. An elastic coupling according to claim 2, characterized in that, The outer walls of the circular gasket (12) and the positioning post (13) are slidably connected to the inner wall of the groove (10).

6. The elastic coupling according to claim 2, characterized in that, The inner walls of the two positioning holes (14) are slidably connected to the outer walls of the two positioning posts (13).

Images