一种挠性双膜片夹紧联轴器
By incorporating protrusions and soft rubber pads in the coupling, the problem of diaphragm damage under overload conditions in double diaphragm couplings is solved, resulting in higher pressure resistance and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG GUANGZHIDA TRANSMISSION COMPONENTS CO LTD
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-17
AI Technical Summary
Existing double diaphragm couplings are prone to overload deformation of the diaphragm when subjected to overload axial loads, leading to irreversible damage.
First and second protrusions are provided on the intermediate coupling and the half coupling to form deformation spaces, and first and second soft rubber pads are provided in these spaces to provide flexible support when the diaphragm assembly undergoes deformation and bending, to offset the impact force, and to improve the pressure resistance of the diaphragm assembly.
By utilizing the deformation characteristics of the soft rubber pad, the force required for diaphragm assembly deformation is reduced, thus preventing overload damage to the diaphragm assembly and extending its service life.
Smart Images

Figure CN224515719U_ABST
Abstract
Claims
1. A flexible double diaphragm clamp coupling, characterized by, It includes an intermediate coupling and half couplings disposed on both sides of the intermediate coupling, wherein diaphragm assemblies are disposed between both sides of the intermediate coupling and the half couplings. The diaphragm assembly is provided with a first bolt and a second bolt on its two sides respectively. The diaphragm assembly is provided with a through hole corresponding to the second bolt of the first bolt. The first bolt passes through the through hole and is screwed to the intermediate coupling. The second bolt passes through the through hole and is screwed to the half coupling. The intermediate coupling has a first protrusion on both sides, and the half coupling has a second protrusion on the side facing the intermediate coupling. The first and second protrusions abut against the diaphragm assembly, so that a first deformation space is formed between the intermediate coupling and the diaphragm assembly, and a second deformation space is formed between the half coupling and the diaphragm assembly. A first soft rubber pad is provided in the first deformation space, and a second soft rubber pad is provided in the second deformation space.
2. The flexible double belt clamp coupling of claim 1, wherein, There are three of each of the first and second protrusions, and the first and second protrusions are staggered. A first groove is formed between adjacent first protrusions, the first soft rubber pad is disposed in the first groove and connected to the intermediate coupling, and a first deformation space is formed between the bottom wall of the first groove and the diaphragm assembly. A second groove is formed between adjacent second protrusions, the second soft rubber pad is disposed in the second groove and connected to the half coupling, and a second deformation space is formed between the bottom wall of the second groove and the diaphragm assembly.
3. The flexible double belt clamp coupling of claim 2, wherein, The upper surface of the first soft rubber pad is flush with the first protrusion, and the upper surface of the second soft rubber pad is flush with the second protrusion.
4. The flexible double belt clamp coupling of claim 3, wherein, The intermediate coupling has first screw holes on both sides located on the first protrusion. The first bolt passes through the through hole and is screwed into the first screw hole. The half coupling has a first clearance groove located in the second groove. The nut of the first bolt is embedded in the first clearance groove. The half coupling has a second threaded hole on the second protrusion on the side facing the middle coupling. The second bolt passes through the through hole and is screwed into the second threaded hole. The middle coupling has a second clearance groove located in the first groove. The nut of the second bolt is embedded in the second clearance groove.
5. The flexible double belt clamp coupling of claim 4, wherein, The first soft rubber pad is divided into two halves located on both sides of the second clearance groove, and the second soft rubber pad is divided into two halves located in the first clearance groove.
6. The flexible double belt clamp coupling of claim 5, wherein, The intermediate coupling is also provided with a first insertion slot located in the first groove, and the first soft rubber pad is provided with a first insertion post that is inserted and engaged with the first insertion slot. The half coupling is also provided with a second insertion slot located in the second groove, and the second soft rubber pad is provided with a second insertion post that is inserted and engaged with the second insertion slot.
7. The flexible double belt clamp coupling according to any one of claims 1-6, wherein, The half-coupling has a locking hole and a locking shaft groove that communicates with the locking hole. The half-coupling has a locking hole on its arc surface, which passes through the locking shaft groove and is screwed with a locking bolt.