A circular double-plate rivet clamping coupling

Abstract

This utility model discloses a circular double-die rivet clamping coupling, relating to the field of coupling technology. It includes a central block, coupling blocks on both sides of the central block, and diaphragm assemblies between the central block and the coupling blocks. A first rivet and a second rivet are respectively provided on both sides of the diaphragm assembly. The first rivet includes a first rivet rod and a first rivet head, and the second rivet includes a second rivet rod and a second rivet head. The first rivet rod passes through the diaphragm assembly and is fixed to the central block, and the second rivet rod passes through the diaphragm assembly and is fixed to the coupling block. A first arc-shaped groove is provided on both sides of the central block, and a second arc-shaped groove is provided on the side of the coupling block facing the central block. A first damping block and a second damping block are respectively embedded inside the first and second arc-shaped grooves. Connecting components are provided on both the first and second damping blocks. The connecting components on the first damping block are connected to the second rivet head, and the connecting components on the second damping block are connected to the first rivet head, thereby increasing the vibration damping effect of the coupling.

Description

Technical Field

[0001] This utility model relates to the field of coupling technology, and in particular to a circular double-plate rivet clamping coupling. Background Technology

[0002] Diaphragm couplings consist of several sets of diaphragms (thin stainless steel plates) that are alternately connected to two coupling blocks. Each set of diaphragms is composed of several stacked plates. Diaphragms are classified into connecting rod type and integral type of various shapes. Diaphragm couplings rely on the elastic deformation of the diaphragms to compensate for the relative displacement of the two connected shafts. They are high-performance flexible metal components that do not require lubrication, have a compact structure, high strength, long service life, no rotational backlash, are unaffected by temperature and oil contamination, and are resistant to acid, alkali, and corrosion. They are suitable for shaft transmissions in high-temperature, high-speed, and corrosive media environments.

[0003] In existing technologies, although the rigid structure of metal diaphragms ensures torsional stiffness, they lack vibration damping capabilities. During use, they directly transmit high-frequency vibrations, leading to abnormal wear or decreased precision in connected equipment.

[0004] Therefore, it is necessary to propose a new technical solution to address the above problems. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a technical solution that can solve the aforementioned problems.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a circular double-mold rivet clamping coupling, comprising a middle block, coupling blocks disposed on both sides of the middle block, and a diaphragm assembly disposed on both sides of the middle block and between the coupling blocks;

[0007] The diaphragm assembly is provided with a first rivet and a second rivet on both sides. The first rivet includes a first rivet rod and a first rivet head, and the second rivet includes a second rivet rod and a second rivet head. The first rivet rod passes through the diaphragm assembly and is fixedly connected to the middle block, and the second rivet rod passes through the diaphragm assembly and is fixedly connected to the coupling block.

[0008] Both sides of the intermediate block are provided with first arc-shaped grooves corresponding to the positions of the second rivet heads. The coupling block is provided with a second arc-shaped groove corresponding to the first rivet head on one side facing the intermediate block. A first damping block and a second damping block are respectively embedded in the first arc-shaped groove and the second arc-shaped groove. Both the first damping block and the second damping block are provided with connecting components. The connecting component on the first damping block is connected to the second rivet head, and the connecting component on the second damping block is connected to the first rivet head.

[0009] As a further embodiment of this utility model: the connecting component includes a connecting rod;

[0010] Both the first and second damping blocks have insertion holes, the connecting rod is interference-fitted with the insertion holes, and the connecting rod is connected to the first rivet head / second rivet head.

[0011] As a further embodiment of this utility model: a cover is connected to the connecting rod, and the cover is fitted over the outside of the first rivet head / second rivet head.

[0012] As a further embodiment of this utility model: the end of the connecting rod is connected to an embedded block, and the first damping block and the second damping block are both provided with a receiving groove communicating with the insertion hole on the side away from the cover, and the embedded block is fitted into the receiving groove.

[0013] As a further embodiment of this utility model: both sides of the embedded block have enlarged inclined surfaces, the inner wall of the receiving groove has a guide inclined surface that matches the enlarged inclined surface, and the outer edge of the insertion hole is chamfered.

[0014] As a further embodiment of this utility model: both the first damping block and the second damping block are provided with through holes located on both sides of the receiving groove.

[0015] As a further embodiment of this utility model: the inner walls of the first damping block and the second damping block are both provided with arc-shaped guide grooves, the embedded block is connected to an arc-shaped block on the side away from the cover, and the arc-shaped block is slidably engaged with the arc-shaped guide groove.

[0016] Compared with the prior art, the beneficial effects of this technical solution are as follows: When the coupling block and the intermediate block generate relative torque, the torque is transmitted to the diaphragm assembly through the first rivet and the second rivet, respectively. Then, the relative displacement and deviation of the two connected shafts are compensated by the bending deformation of the diaphragm assembly. When the torque is transmitted to the first rivet and the second rivet, the head of the first rivet is connected to the second damping block on the coupling block through the connecting assembly, and the head of the second rivet is also connected to the first damping block on the intermediate block through the connecting assembly. This absorbs the vibration directly transmitted by the two shafts connected by the coupling block. Due to the deformability of the first and second damping blocks, the connecting assembly can rotate slightly with the head of the first or second rivet. This achieves the effect of increasing the overall vibration reduction of the coupling without affecting the conventional deformation compensation of the diaphragm assembly for the deviation of the two shafts, so as to avoid abnormal wear of the two shafts connected by vibration due to long-term vibration.

[0017] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art 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.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the planar structure of this utility model;

[0021] Figure 3 This is an exploded structural diagram of the present invention;

[0022] Figure 4 This is a schematic diagram of the diaphragm assembly of this utility model;

[0023] Figure 5 This is a schematic diagram of the planar structure of the intermediate block of this utility model.

[0024] Figure 6 This is a schematic diagram of the planar structure of the coupling block of this utility model.

[0025] Figure 7 This is a structural schematic diagram of the first / second vibration damping block of this utility model.

[0026] Figure 8 This is a schematic diagram of the structure of the connecting component of this utility model;

[0027] The corresponding labels in the attached diagram are explained as follows:

[0028] 1. Intermediate block; 11. First arc groove; 2. Coupling block; 21. Second arc groove; 3. Diaphragm assembly; 4. First rivet; 41. First rivet rod; 42. First rivet head; 5. Second rivet; 51. Second rivet rod; 52. Second rivet head; 6. First damping block; 7. Second damping block; 8. Connecting assembly; 81. Connecting rod; 82. Cover; 83. Embedded block; 831. Expanding bevel; 84. Arc block; 9. Insertion hole; 91. Receiving groove; 92. Guide bevel; 93. Through hole; 10. Arc guide groove. Detailed Implementation

[0029] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-8 A circular double-die rivet clamping coupling includes an intermediate block 1, coupling blocks 2 disposed on both sides of the intermediate block 1, and a diaphragm assembly 3 disposed on both sides of the intermediate block 1 and between the coupling blocks 2.

[0031] The diaphragm assembly 3 is provided with a first rivet 4 and a second rivet 5 on both sides. The first rivet 4 includes a first rivet rod 41 and a first rivet head 42. The second rivet 5 includes a second rivet rod 51 and a second rivet head 52. The first rivet rod 41 passes through the diaphragm assembly 3 and is fixed to the intermediate block 1. The second rivet rod 51 passes through the diaphragm assembly 3 and is fixed to the coupling block 2. There are two of each of the first rivet 4 and the second rivet 5, which are arranged in a cross shape, so that the connection and fixing points between the diaphragm assembly 3 and the intermediate block 1 and the coupling block 2 are evenly distributed, and the force is evenly transmitted during the force process.

[0032] Both sides of the intermediate block 1 are provided with first arc-shaped grooves 11 corresponding to the positions of the second rivet heads 52. The coupling block 2 is provided with a second arc-shaped groove 21 corresponding to the first rivet head 42 on the side facing the intermediate block 1. The first arc-shaped groove 11 and the second arc-shaped groove 21 are respectively embedded with a first damping block 6 and a second damping block 7. Both the first damping block 6 and the second damping block 7 are provided with connecting components 8. The connecting components 8 on the first damping block 6 are connected to the second rivet head 52, and the connecting components 8 on the second damping block 7 are connected to the first rivet head 42.

[0033] Specifically, when the coupling block 2 and the intermediate block 1 generate relative torque, the torque is transmitted to the diaphragm assembly 3 through the first rivet 4 and the second rivet 5, respectively. Then, the relative displacement and deviation of the two shafts are compensated by the bending deformation of the diaphragm assembly 3. When the torque is transmitted to the first rivet 4 and the second rivet 5, the first rivet head 42 is connected to the second damping block 7 on the coupling block 2 through the connecting assembly 8. The second rivet head 52 is also connected to the first damping block 6 on the intermediate block 1 through the connecting assembly 8, so as to absorb the vibration directly transmitted by the two shafts connected by the coupling block 2. Due to the deformability of the first damping block 6 and the second damping block 7, the connecting assembly 8 can rotate slightly with the first rivet head 42 or the second rivet head 52. Thus, without affecting the normal deformation compensation of the two shafts by the diaphragm assembly 3, the overall vibration reduction effect of the coupling is increased, so as to avoid abnormal wear of the two shafts connected by vibration due to long-term vibration.

[0034] The first damping block 6 is embedded in the first arc groove 11, and the second damping block 7 is embedded in the second arc groove 21. The stability effect is improved by combining conventional methods such as gluing and welding, so that the first damping block 6 is fixed on the middle block 1 and the second damping block 7 is fixed on the coupling block 2.

[0035] Both the first damping block 6 and the second damping block 7 are made of rubber material.

[0036] Based on the above embodiments, it is further proposed that the connecting component 8 includes a connecting rod 81;

[0037] Both the first damping block 6 and the second damping block 7 have insertion holes 9. The connecting rod 81 is interference-fitted with the insertion hole 9, and the connecting rod 81 is connected to the first rivet head 42 / the second rivet head 52.

[0038] Specifically, one end of the connecting rod 81 is connected to the first rivet head 42 / second rivet head 52, and the other end is interference-fitted with the insertion hole 9 on the first damping block 6 / second damping block 7 so that the connecting rod 81 is fixed to the first damping block 6 / second damping block 7.

[0039] In this utility model, multiple connecting components 8 are provided, corresponding to each first damping block 6 and second damping block 7. Therefore, it can be understood that the connecting rod 81 of each connecting component 8 is respectively set in the second damping block 7 of the first damping block 6. At the same time, all the structures included in the connecting component 8 are the same as those of the connecting rod 81, such as the sleeve 82, the embedded block 83 and the arc block 84 mentioned below. Therefore, they will not be described in detail below.

[0040] Meanwhile, it is understood that the terms "first rivet head 42 / second rivet head 52" and "first damping block 6 / second damping block 7" appearing in this embodiment mean that the two ends of the connecting rod 81 can be connected to the first rivet head 42 and the second damping block 7, or they can be connected to the second rivet head 52 and the first damping block 6. This is an example, and those skilled in the art can easily understand that the connecting rod 81 has a first connecting rod and a second connecting rod, which are respectively connected to the first rivet head 42 and the second damping block 7, and the second rivet head 52 and the first damping block 6.

[0041] In some embodiments, a cover 82 is connected to the connecting rod 81, and the cover 82 is fitted over the outside of the first rivet head 42 / second rivet head 52.

[0042] Specifically, by connecting a sleeve 82 to the connecting rod 81 and using the sleeve 82 to fit over the outside of the first rivet head 42 / second rivet head 52, a connection is established between the connecting rod 81 and the first rivet head 42 / second rivet head 52.

[0043] In some embodiments, the end of the connecting rod 81 is connected to an embedded block 83, and the first damping block 6 and the second damping block 7 are both provided with a receiving groove 91 communicating with the insertion hole 9 on the side away from the cover 82, and the embedded block 83 is fitted into the receiving groove 91.

[0044] Specifically, the insert block 83 is inserted from outside the socket 9, and the insert block 83 is slightly larger than the socket 9. During the insertion process, the first damping block 6 / second damping block 7 deforms and is embedded into the receiving groove 91, achieving the effect of positioning inside the receiving groove 91, thereby fixing the connecting rod 81 to the first damping block 6 / second damping block 7.

[0045] Preferably, the insert block 83 has enlarged hole slopes 831 on both sides, the inner wall of the receiving groove 91 has guide slopes 92 that match the enlarged hole slopes 831, and the outer edge of the insertion hole 9 is chamfered.

[0046] Specifically, by designing enlarged hole bevels 831 on both sides of the embedded block 83, the insertion hole 9 is enlarged and enters the receiving groove 91 when the embedded block 83 is inserted. After being embedded into the receiving groove 91, the enlarged hole bevel 831 on one side of the embedded block 83 fits, so that the first damping block 6 / second damping block 7 can better absorb the vibration on the embedded block 83.

[0047] Furthermore, the outer edge of the socket 9 is chamfered, and the socket 9 is further enlarged by using the enlarging bevel 831 of the embedded block 83.

[0048] In some embodiments, the first damping block 6 and the second damping block 7 are both provided with through holes 93 located on both sides of the receiving groove 91.

[0049] Specifically, the opening of the through hole 93 allows the connecting rod 81 and the embedded block 83 to generate corresponding compression when they are displaced and pressed against the first damping block 6 / second damping block 7. This increases the range of motion of the connecting rod 81 and the embedded block 83, so that when the deviation between the two axes is large, the bending amplitude of the diaphragm group 3 increases, and the corresponding displacement amplitude of the first rivet 4 and the second rivet 5 increases. The connecting rod 81 and the embedded block 83 can adapt to the displacement amplitude of the first rivet 4 and the second rivet 5.

[0050] In some embodiments, the inner walls of the first damping block 6 and the second damping block 7 are provided with arc-shaped guide grooves 10, and the embedded block 83 is connected to an arc-shaped block 84 on the side away from the cover 82, and the arc-shaped block 84 slides in cooperation with the arc-shaped guide groove 10.

[0051] Specifically, an arc-shaped block 84 is provided on the embedded block 83. After the embedded block 83 is embedded into the receiving groove 91, the arc-shaped block 84 slides with the arc-shaped guide groove 10 opened on the inner wall of the first arc-shaped groove 11 or the second arc-shaped groove 21, so that the displacement of the connecting rod 81 and the sleeve 82 can be a ring path synchronized with the intermediate block 1 or the coupling block 2, so as to better absorb vibration and improve the vibration reduction effect.

[0052] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A circular double-plate rivet clamping coupling, characterized in that, It includes an intermediate block (1), coupling blocks (2) disposed on both sides of the intermediate block (1), and a diaphragm assembly (3) disposed on both sides of the intermediate block (1) and between the coupling blocks (2). The diaphragm assembly (3) is provided with a first rivet (4) and a second rivet (5) on both sides respectively. The first rivet (4) includes a first rivet rod (41) and a first rivet head (42). The second rivet (5) includes a second rivet rod (51) and a second rivet head (52). The first rivet rod (41) passes through the diaphragm assembly (3) and is fixedly connected to the middle block (1). The second rivet rod (51) passes through the diaphragm assembly (3) and is fixedly connected to the coupling block (2). The middle block (1) has a first arc groove (11) on both sides corresponding to the position of the second rivet head (52). The coupling block (2) has a second arc groove (21) on the side facing the middle block (1) corresponding to the first rivet head (42). The first arc groove (11) and the second arc groove (21) are respectively embedded with a first damping block (6) and a second damping block (7). The first damping block (6) and the second damping block (7) are each provided with a connecting component (8). The connecting component (8) on the first damping block (6) is connected to the second rivet head (52), and the connecting component (8) on the second damping block (7) is connected to the first rivet head (42).

2. The circular double-die rivet clamping coupling according to claim 1, characterized in that, The connecting component (8) includes a link (81); The first damping block (6) and the second damping block (7) are both provided with insertion holes (9), the connecting rod (81) is interference-fitted with the insertion hole (9), and the connecting rod (81) is connected to the first rivet head (42) / the second rivet head (52).

3. The circular double-die rivet clamping coupling according to claim 2, characterized in that, A cover (82) is connected to the connecting rod (81), and the cover (82) is fitted over the outside of the first rivet head (42) / the second rivet head (52).

4. The circular double-die rivet clamping coupling according to claim 3, characterized in that, The end of the connecting rod (81) is connected to an embedded block (83). The first damping block (6) and the second damping block (7) are provided with a receiving groove (91) communicating with the insertion hole (9) on the side away from the cover (82). The embedded block (83) is fitted into the receiving groove (91).

5. The circular double-die rivet clamping coupling according to claim 4, characterized in that, Both sides of the embedded block (83) have enlarged hole slopes (831), the inner wall of the receiving groove (91) has a guide slope (92) that matches the enlarged hole slopes (831), and the outer edge of the insertion hole (9) is chamfered.

6. The circular double-die rivet clamping coupling according to claim 5, characterized in that, Both the first damping block (6) and the second damping block (7) have through holes (93) located on both sides of the receiving groove (91).

7. The circular double-die rivet clamping coupling according to claim 6, characterized in that, The inner walls of the first damping block (6) and the second damping block (7) are provided with arc-shaped guide grooves (10). The embedded block (83) is connected to an arc-shaped block (84) on the side away from the cover (82), and the arc-shaped block (84) slides in cooperation with the arc-shaped guide groove (10).

Images