High-speed diaphragm coupling protection shell, mounting structure and shell safety verification method

Abstract

The invention relates to a high-speed membrane disc coupling protection shell, a mounting structure and a shell safety verification method. The shell comprises shell half bodies which are symmetrically arranged, membrane disc shells are arranged on the two sides of the shell half bodies, a middle shell is arranged between the membrane disc shells, and connecting half rings are arranged on the outer sides of the membrane disc shells; ferrules are placed between the adjacent connecting half rings, and hoops sleeve the peripheries of the adjacent shell half rings; the ferrule is composed of a baffle ring, a supporting ring, a transition ring and a protection ring which are sequentially connected, the baffle ring makes contact with the end face of the connecting half ring, and a positioning part is arranged between every two adjacent shell half bodies. The high-speed membrane disc coupler protection shell is scientific and reasonable in structure, and the safety of the shell is guaranteed while the outline and the overall weight of the coupler shell are controlled.

Description

Technical Field

[0001] The present invention belongs to the technical field of couplings, and relates to a protective housing for a high-speed diaphragm coupling, an installation structure, and a method for verifying the safety of the housing. Background Art

[0002] In some scenarios of power transmission, there may be misalignments in the axial, radial, angular, etc. directions between the master and slave motors, which may generate additional stresses on the coupling. For such working conditions, some couplings compensate for the misalignment by adding flexible components. To improve the usability and maintainability of the coupling, a self-locking structure is generally used to connect the flexible components to the coupling tube and the mounting flange. Under the working conditions of high speed and large compensation, the self-locking structure bears large centrifugal and vibration loads. Once it loosens and flies out, it may not be contained by the coupling housing, and punching through the housing and falling into the engine room may bring safety risks.

[0003] For the existing high-speed coupling housings, the housing design is relatively thin, and although the ferrule has high strength, it cannot cover the self-locking structure to play a role in preventing flying out, and there is no design and verification method for the safety structure of the housing. Summary of the Invention

[0004] The purpose of the present invention is to provide a protective housing for a high-speed diaphragm coupling, an installation structure, and a method for verifying the safety of the housing, which can solve the above problems and significantly improve the strength of the housing.

[0005] According to the technical solution provided by the present invention: a protective housing for a high-speed diaphragm coupling, the housing includes symmetrically arranged housing halves, the two sides of the housing halves are diaphragm housings, the middle between the diaphragm housings is an intermediate housing, and the outside of the diaphragm housings is a connecting half-ring; a ferrule is placed between adjacent connecting half-rings, and a hoop is sleeved on the outer periphery of adjacent housing halves; the ferrule consists of a retaining ring, a support ring, a transition ring, and a protective ring connected in sequence, the retaining ring contacts the end face of the connecting half-ring, and a positioning component is provided between adjacent housing halves.

[0006] As a further improvement of the present invention, the hoop is sleeved on the outer periphery of the two end connecting half-rings and the outer periphery of adjacent intermediate housings.

[0007] As a further improvement of the present invention, the diaphragm housing, the intermediate housing, and the connecting half-ring are connected by welding, an arc transition is adopted between the diaphragm housing and the intermediate housing, and the intermediate housing is a straight section.

[0008] As a further improvement of the present invention, reinforcing ribs are provided on the housing half to improve the strength of the housing.

[0009] As a further improvement of the present invention, reinforcing ribs are provided on the diaphragm housing and the intermediate housing, and the reinforcing ribs are distributed radially.

[0010] As a further improvement of the present invention, the positioning component is a positioning plate. Several positioning plates are arranged on the outer shell of one side of the membrane disc and the middle shell on one side. The positioning plates radially extend out of the outer shell of the membrane disc and the middle shell and hold the half shell on the other side.

[0011] A mounting structure for a protective housing of a high-speed membrane disc coupling, comprising the protective housing of the high-speed membrane disc coupling and the membrane disc coupling as described above. Both sides of the membrane disc coupling are connected to the driven part and the driving part through connecting components respectively. The two ends of the housing are connected to the driven part and the driving part respectively. The protective ring and the outer shell of the membrane disc are located on the outer periphery of the connecting components.

[0012] As a further improvement of the present invention, the connecting components adopt a nut and a screw that cooperate with each other; the outer shell of the membrane disc adopts a thickened structure.

[0013] A method for verifying the safety of a housing, which is used to test the protective housing of the high-speed membrane disc coupling as described above, and comprises the following steps: Step 1: Calculate and manufacture the housing; Step 2: Assemble the housing; Step 3: Rotationally install a simulated driven part and a simulated driving part on the rotating test bench. The simulated driven part and the simulated driving part are connected to the membrane disc coupling through a nut and a screw. The two ends of the housing are connected to the simulated driven part and the simulated driving part respectively. The protective ring and the outer shell of the membrane disc are located on the outer periphery of the nut and the screw; Step 4: Drive the simulated driving part to rotate to the test speed until the nut and the screw fly out, and then stop the machine after running for 15 seconds. Disassemble the housing to check the appearance of the half shell. If there are no damages such as cracks and penetrations, it is considered that the protective housing of the high-speed membrane disc coupling passes the safety verification; As a further improvement of the present invention, in Step 1, the lengths and thicknesses of the protective ring and the outer shell of the membrane disc are designed by using commercial finite element simulation software.

[0014] As a further improvement of the present invention, the rotating test bench is placed in a protective cover.

[0015] As a further improvement of the present invention, two rotating seats are oppositely arranged on the rotating test bench, and the simulated driving part is driven by a test motor.

[0016] The positive and progressive effects of the present application are as follows: 1. The structure of the protective housing of the high-speed membrane disc coupling in the present invention is scientific and reasonable, ensuring the safety of the housing while controlling the outer contour and overall weight of the coupling housing.

[0017] 2. The key components of the protective housing of the high-speed membrane disc coupling in the present invention are the outer shell and the ferrule, and both of these two components have high reliability and fast interchangeability. At the same time, since only local improvement designs are made to the key components compared with the conventional housing, the present invention is easy to process and implement in engineering.

[0018] 3. The present invention uses a ferrule of a protective ring to prevent the nut from directly impacting the outer shell when flying out, but impacts the ferrule with higher impact strength. The outer shell with a locally thickened section is used to improve the strength of the part of the outer shell near the screw head position, further ensuring the safety of the housing. At the same time, the ferrule protective ring and the thickened section of the outer shell do not interfere with the coupling and other parts of the housing, and do not affect the normal operation of the coupling. The length of the ferrule protective ring and the thickness and length of the thickened section of the outer shell can be designed according to the weight requirements of the coupling and the actual size and position of the self-locking structure.

[0019] 4. The present invention uses a ferrule and a hoop to fix the relative positions of the housing and the driving and driven components, which can prevent the housing from moving back and forth.

[0020] 5. The outer shell of the present invention is welded, which is lighter in weight and higher in geometric accuracy compared with connection methods such as riveting. And only the thickness of the relative flexible component section needs to be adjusted, and then each section is welded, and the processing cost is controllable. At the same time, reinforcing ribs are arranged on the outer shell, which can significantly improve the strength of the outer shell.

[0021] 6. The verification method for the protective housing of the high-speed diaphragm coupling in the present invention simulates the situation where the self-locking structure of the coupling flies out under actual working conditions, and the verification result has a high credibility. The rotary test bench can use a mechanical closed or electric closed power test bench, and the verification test can be carried out on the conventional test bench of the coupling.

[0022] 7. The test bench of the verification method of the present invention is provided with a protective cover on the outside to avoid damage caused by the flying out of rotating parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the protective housing of the high-speed diaphragm coupling in the present invention.

[0024] Figure 2 is Figure 1 an enlarged schematic diagram of area A in

[0025] Figure 3 is a schematic diagram of the specific installation structure of the protective housing of the high-speed diaphragm coupling in the present invention.

[0026] Figure 4 is a schematic diagram of the method for verifying the safety of the housing in the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] It should be noted that, without conflict, the embodiments in the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the drawings and in combination with the embodiments.

[0028] To enable those skilled in the art to better understand the solution of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with 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 of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] It should be noted that the terms "first", "second", etc. in the description and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so as to describe the embodiments of the present invention here. In addition, similar terms such as "including" and "having" mean that in addition to the content already listed in "including" and "having", other content that has not been listed can also be "included" and "had"; for example, a process, method, system, product or device that can include a series of steps or units does not have to be limited to the clearly listed steps or units, but can include other steps or units that are not clearly listed or are inherent to these processes, methods, products or devices.

[0030] Due to the drawing angle problem, some components may not be drawn, but their positions and connection relationships can be understood according to the text description part.

[0031] As Figures 1 - 2 shown, the present invention is a high-speed membrane disc coupling protection housing. The housing 5 includes symmetrically arranged outer housing halves. On both sides of the outer housing halves are membrane disc housings 5-1, and between the membrane disc housings 5-1 is an intermediate housing 5-2. On the outside of the membrane disc housings 5-1 are connecting half rings 5-3. A ferrule 5-4 is placed between adjacent connecting half rings 5-3, and a hoop 5-5 is sleeved on the outer circumference of adjacent outer housing halves.

[0032] The ferrule 5-4 consists of a retaining ring 5-41, a support ring 5-42, a transition ring 5-43, and a protection ring 5-44 connected in sequence. The retaining ring 5-41 is in contact with the end face of the connecting half ring 5-3 to ensure the axial alignment of the symmetrically arranged outer housing halves. The support ring 5-42 supports the connecting half ring 5-3, strengthening the connection strength of the hoop 5-5. The hoop 5-5 is sleeved on the outer circumference of the two end connecting half rings 5-3 and the outer circumference of the adjacent intermediate housing 5-2.

[0033] The membrane disc housing 5-1, the intermediate housing 5-2, and the connecting half ring 5-3 are connected by welding. An arc transition is adopted between the membrane disc housing 5-1 and the intermediate housing 5-2, and the intermediate housing 5-2 is a straight section.

[0034] Reinforcing ribs 5-6 are provided on the housing half to improve the strength of the housing. Specifically, reinforcing ribs 5-6 are provided on the diaphragm disk housing 5-1 and the intermediate housing 5-2, and the reinforcing ribs 5-6 are distributed radially.

[0035] A positioning component is provided between adjacent housing halves to ensure concentric arrangement of the two. The positioning component is a positioning plate 5-7. Several positioning plates 5-7 are arranged on one side of the diaphragm disk housing 5-1 and one side of the intermediate housing 5-2. The positioning plate 5-7 extends radially out of the diaphragm disk housing 5-1 and the intermediate housing 5-2 and holds the other housing half.

[0036] As Figure 3 shown, the specific installation structure of the housing 5 includes a diaphragm coupling 6. Both sides of the diaphragm coupling 6 are connected to the driven member 4 and the driving member 7 through connection components. Both ends of the housing 5 are respectively connected to the driven member 4 and the driving member 7. The protective ring 5-44 and the diaphragm disk housing 5-1 are located on the outer periphery of the connection components.

[0037] In this embodiment, the connection components are nuts 2 and screws 3. One side of the screw 3 passes through the diaphragm coupling 6 and the driven member 4 and then is screwed into the nut 2. The other side of the screw 3 passes through the diaphragm coupling 6 and the driving member 7 and then is screwed into the nut 2. The protective ring 5-44 and the diaphragm disk housing 5-1 are respectively located on the outer periphery of the nut 2 and the screw 3. The diaphragm disk housing 5-1 adopts a thickened structure to better prevent the connection components from flying out. The nut 2 adopts a self-locking nut.

[0038] Both ends of the housing 5 are respectively connected to the driven member 4 and the driving member 7 through clamps 5-5. Specifically, the positioning pin 1 can pass through the clamp 5-5, the driven member 4 and the positioning pin 1 can pass through the clamp 5-5 and the driving member 7 to complete the connection of the clamp 5-5 with the driven member 4 and the driving member 7 respectively.

[0039] The working principle of the high-speed diaphragm coupling protective housing involved in the present invention is as follows: During the operation of the diaphragm coupling 6, if the nut 2 becomes loose, resulting in the nut 2 and the screw 3 falling off and flying out, the screw 3 will impact the thickened diaphragm disk housing 5-1, and at the same time the nut 2 will impact the protective ring 5-44, rather than directly impacting the housing half, ensuring that the housing half is not penetrated, while controlling the outer contour and overall weight of the housing 5 and ensuring the impact resistance of the housing 5.

[0040] As Figure 4 shown, the present invention also includes a method for verifying the safety of the housing, including Step 1: Calculate and manufacture the housing 5; wherein the lengths and thicknesses of the protective ring 5-44 and the diaphragm disk housing 5-1 are designed through commercial finite element simulation software.

[0041] Step 2: Assemble the housing 5.

[0042] Step 3: As Figure 4As shown in the figure, a simulated follower and a simulated driver are rotatably installed on a rotation test bench 8. The simulated follower and the simulated driver are connected by a nut 2, a screw 3 and a diaphragm coupling 6. Both ends of a housing 5 are respectively connected to the simulated follower and the simulated driver. A protective ring 5-44 and a diaphragm housing 5-1 are located outside the nut 2 and the screw 3.

[0043] Specifically, the simulated follower has the same structure as the follower 4, and the simulated driver has the same structure as the driver 7. Two rotating seats are oppositely arranged on the rotation test bench 8 and are respectively used for installing the simulated follower and the simulated driver. The simulated driver is driven by a test motor.

[0044] For the safety of the test, the rotation test bench 8 is placed in a protective cover 9.

[0045] Step 4: Drive the simulated driver to rotate to the test speed until the nut 2 and the screw 3 fly out, then stop the machine after running for 15 seconds. Disassemble the housing 5 and check the appearance of the outer housing half. If there are no damages such as cracks and penetrations, it is considered that the protective housing of the high-speed diaphragm coupling passes the safety verification.

[0046] In this embodiment, in step 4, first loosen the nut 2 until it is flush with the end face of the screw 3 to create an initial looseness of the connection assembly, then drive the simulated driver to rotate to the test speed until the nut 2 and the screw 3 fly out, then stop the machine after running for 15 seconds. Disassemble the housing 5 and check the appearance of the outer housing half. If there are no damages such as cracks and penetrations, it is considered that the protective housing of the high-speed diaphragm coupling passes the safety verification. This can reduce the test time.

[0047] To test the safety of the protective housing of the high-speed diaphragm coupling at different speeds. The screw 3 is made of tin-bismuth alloy, and a heat source is placed outside the protective housing of the high-speed diaphragm coupling. When the simulated driver is driven to rotate to an appropriate speed, start the heat source. The screw 3 fails and flies out when the temperature reaches 70°.

[0048] It can be understood that the above embodiments are merely exemplary embodiments adopted to illustrate the principle of the present invention. However, the present invention is not limited thereto. For those of ordinary skill in the art, various modifications and improvements can be made without departing from the spirit and essence of the present invention, and these modifications and improvements are also regarded as the protection scope of the present invention.

Claims

1. A high-speed membrane disc coupling protection housing, the housing (5) comprising symmetrically arranged outer housing halves, characterized in that, On both sides of the housing half are membrane disc housings (5-1), between the membrane disc housings (5-1) is the intermediate housing (5-2), and outside the membrane disc housings (5-1) are connecting half-rings (5-3); between adjacent connecting half-rings (5-3) are placed collar rings (5-4), and around the outer circumference of adjacent housing halves is sleeved a hoop (5-5); the collar ring (5-4) consists of a retaining ring (5-41), a support ring (5-42), a transition ring (5-43), and a protection ring (5-44) connected in sequence, the retaining ring (5-41) contacts the end face of the connecting half-ring (5-3), and a positioning component is provided between adjacent housing halves.

2. The high-speed membrane disc coupling protection housing according to claim 1, characterized in that, The hoop (5-5) is sleeved around the outer circumference of the connecting half-rings (5-3) at both ends and around the outer circumference of the adjacent intermediate housings (5-2).

3. The high-speed membrane disc coupling protection housing according to claim 1, characterized in that, The membrane disc housing (5-1), the intermediate housing (5-2), and the connecting half-ring (5-3) are connected by welding, there is an arc transition between the membrane disc housing (5-1) and the intermediate housing (5-2), and the intermediate housing (5-2) is a straight section.

4. The high-speed membrane disk coupling protection housing according to claim 1, wherein, Reinforcing ribs (5-6) are provided on the housing half to improve the strength of the housing.

5. The high-speed membrane disc coupling protection housing according to claim 4, wherein Reinforcing ribs (5-6) are provided on the membrane disc housing (5-1) and the intermediate housing (5-2), and the reinforcing ribs (5-6) are distributed radially.

6. The high-speed membrane disk coupling protection housing according to claim 1, characterized in that, The positioning component is a positioning plate (5-7), several positioning plates (5-7) are provided on one side of the membrane disc housing (5-1) and one side of the intermediate housing (5-2), the positioning plate (5-7) extends radially out of the membrane disc housing (5-1) and the intermediate housing (5-2) and holds the other housing half.

7. A mounting structure for a protective housing of a high-speed membrane disc coupling, characterized in that, It includes the high-speed membrane disc coupling protection housing and the membrane disc coupling (6) as described in any one of claims 1-6. Both sides of the membrane disc coupling (6) are connected to the driven part (4) and the driving part (7) through connection components, and both ends of the housing (5) are respectively connected to the driven part (4) and the driving part (7). The protection ring (5-44) and the membrane disc housing (5-1) are located outside the connection components.

8. A mounting structure for a protection housing of a high-speed membrane disc coupling, characterized in that, The connection components use a matching nut (2) and screw (3), and the membrane disc housing (5-1) uses a thickened structure.

9. A method for verifying the safety of a housing, characterized in that, This method is used to test the high-speed membrane disc coupling protection housing as described in any one of claims 1-6, and includes the following steps: Step 1: Calculate and manufacture the housing (5); Step 2: Assemble the housing (5); Step 3: Rotationally install a simulated driven part and a simulated driving part on the rotating test bench (8). The simulated driven part and the simulated driving part are connected to the membrane disc coupling (6) through a nut (2) and a screw (3). Both ends of the housing (5) are respectively connected to the simulated driven part and the simulated driving part. The protection ring (5-44) and the membrane disc housing (5-1) are located outside the nut (2) and the screw (3); Step 4: Drive the simulated driving part to rotate to the test speed until the nut (2) and the screw (3) fly out, then stop the machine after running for 15 seconds, disassemble the housing (5) and check the appearance of the housing half. If there are no damages such as cracks and penetrations, it is considered that the high-speed membrane disc coupling protection housing passes the safety verification.

10. The method for verifying the safety of the housing according to claim 9, characterized in that, In Step 1, the length and thickness of the protection ring (5-44) and the membrane disc housing (5-1) are designed through commercial finite element simulation software.

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