Double-diaphragm elastic coupling

Abstract

The embodiment of the utility model discloses a double-diaphragm elastic coupling, which is characterized in that a diaphragm device comprises a fixing component used for connecting a coupling block and a middle block, and a diaphragm component used for stacking is sleeved on the fixing component; the buffering device comprises four supporting assemblies arranged on the diaphragm assembly, the four supporting assemblies are distributed on the diaphragm assembly in a circumferential array mode, and the supporting assemblies are sleeved with buffering assemblies used for buffering the coupling block. The first bolt is inserted into the mounting hole in the first diaphragm, meanwhile, the first bolt is in threaded connection with the coupling block, meanwhile, the second bolt is in threaded connection with the coupling block, the second diaphragm can be mounted, meanwhile, the coupling can keep the buffering effect through cooperation between the first spring and the buffering hole and cooperation between the second spring and the buffering hole, and the coupling is not prone to falling off. Therefore, the torsion transmission effect of the coupler can be enhanced, the coupler is prevented from being damaged, and the coupler can be suitable for occasions with large shaft end distance.

Description

Technical Field

[0001] The utility model relates to the technical field of couplings, in particular to a double-diaphragm elastic coupling. Background Art

[0002] Double-diaphragm elastic couplings are primarily used in coal mills. These couplings consist of several groups of diaphragms interlaced with bolts and connected to two coupling halves. Each group of diaphragms is composed of several stacked pieces, and the diaphragms are classified into connecting rod type and whole-piece types of varying shapes. For example, a compact double-diaphragm coupling with Chinese publication number CN217898565U shows a cylindrical intermediate block with a central hole. Both the upper and lower surfaces of the intermediate block are provided with a plurality of protrusions, and the protrusions on the upper and lower surfaces are staggered. The protrusions are provided with central threaded holes, each of which is coaxially connected to a bolt head hole. The corresponding bolt head hole is located on the other surface of the intermediate block. Diaphragms are connected to both ends of the intermediate block, and the diaphragms are connected to the coupling block.

[0003] However, during the use of the coupling, due to the limited contact area between the flange sleeve cone and the load shaft, and the lack of a device to buffer the coupling, the coupling has a poor torque transmission effect in actual use and is prone to damage, making it unsuitable for occasions with a large shaft end distance. Utility Model Content

[0004] To this end, an embodiment of the present invention provides a double-diaphragm elastic coupling to solve the problem in the prior art that due to the limited contact area between the flange sleeve cone and the load shaft, and the lack of a device to buffer the coupling, the coupling has poor torque transmission effect in actual use and is prone to damage, making it unsuitable for occasions with a large shaft end distance.

[0005] In order to achieve the above objectives, the present invention provides the following technical solutions:

[0006] A double-diaphragm elastic coupling comprises two coupling blocks, an intermediate block is arranged between the two coupling blocks, a diaphragm device for connecting the coupling blocks and the intermediate block is arranged between the coupling blocks and the intermediate block, and a buffer device for buffering the coupling blocks is arranged in the diaphragm device.

[0007] The diaphragm device comprises a fixing assembly for connecting the coupling block and the middle block, and the diaphragm assembly for stacking is sleeved on the fixing assembly.

[0008] The buffer device includes a support assembly arranged on the diaphragm assembly, and there are four support assemblies, which are distributed on the diaphragm assembly in a circumferential array. The support assembly is equipped with a buffer assembly for buffering the coupling block.

[0009] Furthermore, the diaphragm assembly includes diaphragm 1 and diaphragm 2 which are arranged on the fixed assembly, and diaphragm 1 is located directly above diaphragm 2.

[0010] Furthermore, the fixing assembly includes a bolt 1 that penetrates the diaphragm 1 and is used for threaded connection with the coupling block. A gasket is mounted on the rod of the bolt 1, and the gasket is located above the diaphragm 1.

[0011] Furthermore, a second bolt for penetrating the second diaphragm is provided at the bottom end of the first bolt, and a nut is mounted on the rod of the second bolt.

[0012] Furthermore, the support assembly includes a support rod 1 fixedly mounted on the top end of the diaphragm 1, and a support rod 2 fixedly mounted on the bottom end of the diaphragm 2 for moving up and down.

[0013] Furthermore, a spring 1 for buffering the coupling block is mounted on the rod body of the first support rod, and a spring 2 for buffering the coupling block is mounted on the rod body of the second support rod.

[0014] Furthermore, a buffer hole for the up and down movement of the support rod is opened at the bottom end of the coupling block, and there are four buffer holes. A stepped hole is opened on the block body of the coupling block, and a sinking bolt for fixing the coupling block is set in the cavity of the stepped hole.

[0015] The embodiment of the utility model has the following advantages:

[0016] By arranging the diaphragm device and the buffer device, when it is necessary to install the two coupling blocks and the intermediate block, the mounting hole on the diaphragm one can be inserted into the bolt one, and the threaded connection between the bolt one and the coupling block and the threaded connection between the bolt two and the coupling block can be made, so that the diaphragm two can be installed. At the same time, the cooperation between the spring one and the buffer hole and the spring two and the buffer hole can be utilized to keep the buffering effect of the coupling, thereby enhancing the torque transmission effect of the coupling to prevent damage to the coupling, and thus being suitable for occasions with a large shaft end distance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0018] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

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

[0020] Figure 2 This is a cross-sectional view of the coupling block of the utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the diaphragm device of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the buffer device of the utility model.

[0023] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0024] 100-coupling block, 101-buffer hole, 001-step hole, 002-sinking bolt;

[0025] 200-middle block;

[0026] 300 - diaphragm device, 310 - diaphragm assembly, 311 - diaphragm 1, 312 - diaphragm 2, 320 - fixing assembly, 321 - bolt 1, 322 - gasket, 323 - nut, 324 - bolt 2;

[0027] 400 - buffer device, 410 - support assembly, 411 - support rod 1, 412 - support rod 2, 420 - buffer assembly, 421 - spring 1, 422 - spring 2. DETAILED DESCRIPTION

[0028] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0029] See also Figures 1-4 , the utility model provides a double diaphragm elastic coupling.

[0030] It includes two coupling blocks 100, an intermediate block 200 is arranged between the two coupling blocks 100, a diaphragm device 300 for connecting the coupling blocks 100 and the intermediate block 200 is arranged between the coupling blocks 100 and the intermediate block 200, and a buffer device 400 for buffering the coupling blocks 100 is arranged in the diaphragm device 300.

[0031] A buffer hole 101 is provided at the bottom end of the coupling block 100 for the support rod 411 to move up and down, and there are four buffer holes 101. The four buffer holes 101 are distributed in a circular array on the coupling block 100 to facilitate the use of the four buffer holes 101 and the buffer device 400 to achieve buffering of the two coupling blocks 100 and the intermediate block 200.

[0032] A stepped hole 001 is provided on the body of the coupling block 100 , and a sinker bolt 002 for fixing the coupling block 100 is provided in the cavity of the stepped hole 001 , so that the coupling block 100 can be locked by passing the sinker bolt 002 through the stepped hole 001 .

[0033] The diaphragm device 300 includes a fixing assembly 320 for connecting the coupling block 100 and the intermediate block 200. There are four fixing assemblies 320, which are distributed in a circular array between the coupling block 100 and the intermediate block 200. The stacked diaphragm assembly 310 is mounted on the fixing assembly 320.

[0034] The diaphragm assembly 310 includes diaphragm 1 311 and diaphragm 2 312 arranged on the fixing assembly 320, and diaphragm 1 311 is located directly above diaphragm 2 312. At the same time, diaphragm 1 311 and diaphragm 2 312 have the same shape and size. Diaphragm 1 311 and diaphragm 2 312 are thin sheets made of metal. The thickness of diaphragm 1 311 and diaphragm 2 312 is controlled at 2 to 3 mm. A diaphragm middle hole is provided in the center of diaphragm 1 311 and diaphragm 2 312. The diaphragm middle hole is used to avoid the axis to be connected. Several evenly distributed mounting holes are provided around the diaphragm middle hole to facilitate the use of the fixing assembly 320 and the mounting holes to fix diaphragm 1 311 and diaphragm 2 312, and can withstand a greater shared torque than when installed regularly.

[0035] The fixing assembly 320 includes a bolt 1 321 that passes through the diaphragm 1 311 and is threadedly connected to the coupling block 100. A gasket 322 is installed on the rod of the bolt 1 321, and the gasket 322 is located above the diaphragm 1 311. The bottom end of the bolt 1 321 is provided with a bolt 2 324 that passes through the diaphragm 2 312, and a nut 323 is installed on the rod of the bolt 2 324. Therefore, when it is necessary to install the two coupling blocks 100 and the intermediate block 200, the mounting hole on the diaphragm 1 311 can be inserted into the bolt 1 321, and the threaded connection between the bolt 1 321 and the coupling block 100 and the threaded connection between the bolt 2 324 and the coupling block can be achieved, so that the diaphragm 2 312 can be installed, thereby realizing the installation of the two coupling blocks 100 and the intermediate block 200.

[0036] The buffer device 400 includes four support assemblies 410 disposed on the diaphragm assembly 310 . The four support assemblies 410 are distributed in a circular array on the diaphragm assembly 310 . The support assemblies 410 are equipped with buffer assemblies 420 for buffering the coupling block 100 .

[0037] The support assembly 410 includes a support rod 1 411 fixedly mounted on the top of the diaphragm 1 311 , and a support rod 2 412 fixedly mounted on the bottom of the diaphragm 2 312 for moving up and down, and the support rod 1 411 and the support rod 2 412 can move up and down in the buffer hole 101 .

[0038] The rod body of support rod 1 411 is provided with spring 1 421 for buffering coupling block 100, and the rod body of support rod 2 412 is provided with spring 2 422 for buffering coupling block 100. Therefore, when the two coupling blocks 100 and the intermediate block 200 need to be installed, the mounting hole on diaphragm 1 311 can be inserted into bolt 1 321, and the threaded connection between bolt 1 321 and coupling block 100 and the threaded connection between bolt 2 324 and coupling block can be made, so that diaphragm 2 312 can be installed. At the same time, the cooperation between spring 1 421 and buffer hole 101 and between spring 2 422 and buffer hole 102 can be utilized to keep the buffering effect of the coupling, thereby enhancing the torque transmission effect of the coupling to prevent damage to the coupling, and thus being suitable for occasions with a large shaft end distance.

[0039] Although the present invention has been described in detail above using general descriptions and specific embodiments, it will be apparent to those skilled in the art that modifications or improvements may be made to the present invention. Therefore, such modifications or improvements, without departing from the spirit of the present invention, are within the scope of protection claimed herein.

Claims

1. A double-diaphragm elastic coupling, comprising two coupling blocks (100), characterized in that: An intermediate block (200) is provided between the two coupling blocks (100); a diaphragm device (300) for connecting the coupling block (100) and the intermediate block (200) is provided between the coupling block (100) and the intermediate block (200); a buffer device (400) for buffering the coupling block (100) is provided in the diaphragm device (300); The diaphragm device (300) comprises a fixing assembly (320) for connecting the coupling block (100) and the intermediate block (200), wherein the fixing assembly (320) is provided with a diaphragm assembly (310) for stacking; The buffer device (400) includes a support assembly (410) arranged on the diaphragm assembly (310), and there are four support assemblies (410). The four support assemblies (410) are distributed in a circumferential array on the diaphragm assembly (310), and a buffer assembly (420) for buffering the coupling block (100) is mounted on the support assembly (410).

2. The double-diaphragm elastic coupling according to claim 1, characterized in that: The diaphragm assembly (310) includes a diaphragm 1 (311) and a diaphragm 2 (312) which are arranged on a fixed assembly (320), and the diaphragm 1 (311) is located directly above the diaphragm 2 (312).

3. The double-diaphragm elastic coupling according to claim 2, characterized in that: The fixing assembly (320) includes a bolt (321) that penetrates the diaphragm (311) and is threadedly connected to the coupling block (100). A gasket (322) is mounted on the rod of the bolt (321), and the gasket (322) is located above the diaphragm (311).

4. The double-diaphragm elastic coupling according to claim 3, characterized in that: The bottom end of the bolt 1 (321) is provided with a bolt 2 (324) for penetrating the diaphragm 2 (312), and a nut (323) is mounted on the rod of the bolt 2 (324).

5. The double-diaphragm elastic coupling according to claim 2, characterized in that: The support assembly (410) includes a support rod 1 (411) fixedly mounted on the top end of the diaphragm 1 (311), and a support rod 2 (412) fixedly mounted on the bottom end of the diaphragm 2 (312) for moving up and down.

6. The double-diaphragm elastic coupling according to claim 5, characterized in that: The rod body of the first support rod (411) is provided with a first spring (421) for buffering the coupling block (100), and the rod body of the second support rod (412) is provided with a second spring (422) for buffering the coupling block (100).

7. The double-diaphragm elastic coupling according to claim 5, characterized in that: The bottom end of the coupling block (100) is provided with a buffer hole (101) for allowing the support rod (411) to move up and down, and there are four buffer holes (101). The block body of the coupling block (100) is provided with a stepped hole (001), and the cavity of the stepped hole (001) is provided with a sinking bolt (002) for fixing the coupling block (100).

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