Expansion sleeve diaphragm type high-torque high-rotating-speed flexible high-precision main shaft connecting device

Abstract

The utility model discloses an expansion sleeve diaphragm type high-torque high-rotating-speed flexible high-precision main shaft connecting device, which relates to the technical field of couplings and comprises a stainless steel diaphragm, and two sides of the stainless steel diaphragm are connected with side section outer cones; a side section inner cone is mounted on the outer side of the side section outer cone in a matched manner; the conical holes in the inner sides of the side section inner cones extrude the elastic cones inwards, so that the elastic cones and the shaft are tightly held and fixed, as the elastic cones are the four elastic die petals, the shafts with different diameters can be locked and fixed, the structure is simple, and the use is flexible; due to the fact that the stainless steel membranes are made of stainless steel, and the multiple membranes are used in a stacked mode, high elasticity and torsional rigidity are achieved, reliable power transmission and positioning functions can be provided, the membranes can absorb vibration and impact and compensate radial, angular and axial deviations, other mechanical elements are effectively protected, and the service life of the membrane is prolonged. The service life of the coupler is prolonged.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of couplings, and particularly relates to a high-torque, high-speed, flexible and high-precision spindle coupling device of a expansion sleeve diaphragm type. Background Art

[0002] The expansion sleeve diaphragm coupling is a high-performance coupling product; the expansion sleeve diaphragm coupling is widely used in various mechanical equipment, such as machine tools, metallurgical equipment, mining machinery, chemical equipment, paper machinery, fans, pumps, etc. It is particularly suitable for occasions with high requirements for transmission accuracy and large displacement compensation.

[0003] Chinese Patent Publication No. CN 208885801 U discloses an expansion sleeve coupling. It includes: a first sleeve and a second sleeve; the first end of the first sleeve is connected to the second sleeve, the first sleeve is provided with an inner conical hole, the aperture of the inner conical hole gradually increases from the first end of the first sleeve to the second end of the first sleeve away from the second sleeve, and a flange is provided at the second end of the first sleeve; a first expansion sleeve is installed in the first sleeve, the first expansion sleeve is provided with an outer conical surface adapted to the inner conical hole of the first sleeve, and the first expansion sleeve is inserted into the first sleeve from the second end of the first sleeve and is flange-connected to the first sleeve.

[0004] The expansion sleeve coupling in the above patent is composed of two expansion sleeves and two sleeves, and belongs to a rigid connection during transmission. This coupling does not have the effects of absorbing vibration, compensating angular and axial deviations, and cannot accept the function of large-torque vibration. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a high-torque, high-speed, flexible and high-precision spindle coupling device of a expansion sleeve diaphragm type, which has the characteristics of compact structure, suitable for high-speed operation, high precision, large torque, zero rotational clearance, convenient disassembly, high sensitivity, large transmitted torque, completely the same clockwise and counterclockwise rotation characteristics, can absorb vibration, the stainless steel diaphragm compensates angular and axial deviations, can accept large-torque vibration, high safety and reliability performance, simple structure, convenient inspection and maintenance, convenient installation, compact structure, and suitable for high-speed operation, so as to solve the technical problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-torque, high-speed, flexible and high-precision spindle coupling device of a expansion sleeve diaphragm type includes a stainless steel diaphragm, and a side joint outer cone is connected to each side of the stainless steel diaphragm; the side joint outer cone is externally fitted with a side joint inner cone;

[0008] The described outer conical part of the edge section includes a connecting disc, and one side of the connecting disc is provided with an elastic cone; the elastic cone is composed of four elastic lobes.

[0009] As a further technical solution of the present utility model, a plurality of U-shaped grooves are opened on both sides of the connecting disc. A threaded hole is penetrated through the U-shaped groove opened on the outer side of the connecting disc, and a diaphragm connecting bolt connected to the stainless steel diaphragm is arranged in the threaded hole.

[0010] As a further technical solution of the present utility model, a plurality of through holes convenient for connecting bolts of the edge section body to connect are annularly opened on the inner conical part of the edge section; the connecting bolts of the edge section body are in fit connection with the threaded holes on the connecting disc.

[0011] As a further technical solution of the present utility model, a plurality of stainless steel diaphragms are provided, and the plurality of stainless steel diaphragms are stacked with each other.

[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0013] 1. In the present utility model, when used for shaft connection, the shaft is inserted into the middle of the elastic cone, and then the connecting bolts of the edge section body are gradually tightened inward. Driven by the connecting bolts of the edge section body, the conical hole on the inner side of the inner conical part of the edge section presses the elastic cone inward, so that the elastic cone tightly hugs and fixes the shaft.

[0014] 2. In the present utility model, since the elastic cone is composed of four elastic lobes, it can be locked and fixed for shafts with different diameters, with a simple structure and flexible use; since the stainless steel diaphragm is made of stainless steel and a plurality of diaphragms are stacked and used, it has high elasticity and torsional stiffness, can provide reliable power transmission and positioning functions, and the diaphragm can absorb vibration and shock as well as compensate for radial, angular and axial deviations, effectively protecting other mechanical components and extending the service life of the coupling.

[0015] 3. In the present utility model, the coupling has the characteristics of compact structure, suitable for high-speed operation, high precision, large torque, zero rotational clearance, convenient disassembly, high sensitivity, large transmitted torque, completely identical clockwise and counterclockwise rotation characteristics, vibration absorption, stainless steel diaphragm compensating for angular and axial deviations, acceptable large torque vibration, high safety and reliability performance, simple structure, convenient inspection and maintenance, convenient installation, compact structure, suitable for high-speed operation, etc. Therefore, it is applicable to occasions with large changes in speed and load, as well as high temperature or low temperature. In addition to having good buffering and shock absorption performance, it has a large bearing capacity, making great contributions to equipment in industries such as papermaking, metallurgy, textile, shipbuilding, agricultural machinery, transportation, chemical industry, and light industry. Description of the Drawings

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present utility model.

[0017] Figure 2 is the front view in the present utility model Figure 1 .

[0018] Figure 3 is the schematic diagram of the split structure in the present utility model Figure 1 .

[0019] Figure 4 is the schematic diagram of the structure of the outer cone of the side joint in the present utility model

[0020] Figure 5 is the schematic diagram of the structure of the stainless steel diaphragm in the present utility model

[0021] Figure 6 is the partial enlarged schematic diagram in the present utility model Figure 3 .

[0022] Figure 7 is the A-A cross-sectional view in the present utility model Figure 2 .

[0023] In the figure: 1 - stainless steel diaphragm, 2 - outer cone of side joint, 3 - inner cone of side joint, 4 - connecting bolt of side joint body, 5 - connecting bolt of diaphragm;

[0024] 21 - connecting disc, 22 - U-shaped groove, 23 - elastic cone. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0026] Please refer to Figure 1-7 , in the embodiment of the present utility model, a high-torque, high-speed, flexible and high-precision spindle coupling device of the expansion sleeve diaphragm type includes a stainless steel diaphragm 1, and two outer cones of side joints 2 are respectively connected to both sides of the stainless steel diaphragm 1; an inner cone of side joint 3 is fitted and installed outside the outer cone of side joint 2;

[0027] The outer cone of side joint 2 includes a connecting disc 21, and an elastic cone 23 is provided on one side of the connecting disc 21; the elastic cone 23 is composed of four elastic petals. The inner cone of side joint 3 is annularly provided with a plurality of through holes facilitating the connection of the connecting bolts 4 of the side joint body; the connecting bolts 4 of the side joint body are in threaded connection with the threaded holes on the connecting disc 21.

[0028] By adopting the above technical solution, when used for shaft connection, the shaft is inserted into the middle of the elastic cone 23, and then the side joint body connection bolt 4 is gradually tightened inward. Driven by the side joint body connection bolt 4, the tapered hole inside the inner cone 3 of the side joint body squeezes the elastic cone 23 inward, so that the elastic cone 23 tightly holds and fixes the shaft.

[0029] Since the elastic cone 23 is composed of four elastic petals, it can be locked and fixed for shafts with different diameters, with a simple structure and flexible use.

[0030] In this embodiment, multiple stainless steel diaphragms 1 are provided, and the multiple stainless steel diaphragms 1 are stacked on top of each other.

[0031] By adopting the above technical solution, since the stainless steel diaphragm 1 is made of stainless steel and multiple diaphragms are stacked and used, it has high elasticity and torsional stiffness, can provide reliable power transmission and positioning functions, and the diaphragm can absorb vibrations and impacts as well as compensate for radial, angular and axial deviations, effectively protecting other mechanical components and extending the service life of the coupling.

[0032] In this embodiment, a plurality of U-shaped grooves 22 are opened on both sides of the connecting disk 21. A threaded hole is penetrated through the U-shaped groove 22 opened on the outer side of the connecting disk 21, and a diaphragm connecting bolt 5 connected to the stainless steel diaphragm 1 is provided in the threaded hole.

[0033] By adopting the above technical solution, it facilitates the connection and fixation of the stainless steel diaphragm 1 with the outer cones 2 of the two side joints.

[0034] This coupling has the characteristics of a compact structure, being suitable for high-speed operation, high precision, large torque, zero rotational clearance, easy disassembly, high sensitivity, large transmitted torque, completely identical clockwise and counterclockwise rotation characteristics, vibration absorption, stainless steel diaphragm compensation for angular and axial deviations, acceptance of large torque vibrations, high safety and reliability performance, simple structure, convenient inspection and maintenance, easy installation, and a compact structure suitable for high-speed operation. Therefore, it is applicable to occasions with large changes in speed and load, as well as high or low temperature, has good buffering and shock absorption performance, and a large load-bearing capacity, making great contributions to the equipment in industries such as papermaking, metallurgy, textile, shipbuilding, agricultural machinery, transportation, chemical industry, and light industry.

[0035] This coupling consists of a stainless steel diaphragm 1 and two outer cones 2 of the side joints to form the main body of the diaphragm coupling. With the cooperation of the stainless steel diaphragm 1, the coupling has the effects of vibration absorption, compensation for angular and axial deviations, and acceptance of large torque vibrations.

[0036] The cooperation of the outer cone 2 of the side joint and the inner cone of the side joint can be used to connect the shaft. Compared with the traditional key connection and flange connection methods, the transmission efficiency is high and the transmission ratio is accurate.

[0037] The working principle of the utility model is as follows: when used for shaft connection, the shaft is inserted into the middle of the elastic cone 23, and then the connecting bolt 4 of the side joint body is gradually tightened inward. Driven by the connecting bolt 4 of the side joint body, the conical hole on the inner side of the inner cone 3 of the side joint presses the elastic cone 23 inward, so that the elastic cone 23 tightly holds and fixes the shaft;

[0038] Since the elastic cone 23 is composed of four elastic petals, it can be locked and fixed for shafts with different diameters, with a simple structure and flexible use; since the stainless steel diaphragm 1 is made of stainless steel and multiple diaphragms are stacked and used, it has high elasticity and torsional stiffness, can provide reliable power transmission and positioning functions, and the diaphragm can absorb vibrations and impacts as well as compensate for radial, angular and axial deviations, effectively protecting other mechanical components and extending the service life of the coupling;

[0039] This coupling has the characteristics of a compact structure, being suitable for high-speed operation, high precision, large torque, zero rotational clearance, easy disassembly, high sensitivity, large transmission torque, completely identical clockwise and counterclockwise rotation characteristics, vibration absorption, stainless steel diaphragm for compensating angular and axial deviations, being able to accept large torque vibrations, high safety and reliability performance, simple structure, convenient inspection and maintenance, easy installation, and a compact structure suitable for high-speed operation. Therefore, it is applicable to occasions with large changes in speed and load, as well as high or low temperature, and has good buffering and shock absorption performance, and a large load-bearing capacity, making significant contributions to the equipment in industries such as papermaking, metallurgy, textile, shipbuilding, agricultural machinery, transportation, chemical industry, and light industry.

[0040] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and without departing from the spirit or basic characteristics of the utility model, the utility model can be implemented in other specific forms. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed by the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0041] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A high-torque, high-speed, flexible and high-precision spindle coupling device of the expansion sleeve diaphragm type, characterized in that: It includes a stainless-steel diaphragm (1), and a side joint outer cone (2) is connected to each of the two sides of the stainless-steel diaphragm (1); a side joint inner cone (3) is fitted and installed on the outside of the side joint outer cone (2). The side joint outer cone (2) includes a connecting disc (21), and an elastic cone (23) is provided on one side of the connecting disc (21); the elastic cone (23) consists of four elastic petals.

2. The expansion sleeve diaphragm type high-torque and high-speed flexible high-precision spindle coupling device according to claim 1, wherein: A plurality of U-shaped grooves (22) are opened on both sides of the connecting disc (21). A threaded hole is penetrated through the U-shaped groove (22) opened on the outside of the connecting disc (21), and a diaphragm connecting bolt (5) connected to the stainless-steel diaphragm (1) is provided in the threaded hole.

3. The expansion sleeve diaphragm type high-torque and high-speed flexible high-precision spindle coupling device according to claim 1, characterized in that: A plurality of through holes facilitating the connection of side joint body connecting bolts (4) are annularly opened on the side joint inner cone (3); the side joint body connecting bolts (4) are in mating connection with the threaded holes on the connecting disc (21).

4. The expansion sleeve diaphragm type high-torque and high-speed flexible high-precision spindle coupling device according to claim 1, characterized in that: A plurality of the stainless-steel diaphragms (1) are provided, and the plurality of stainless-steel diaphragms (1) are stacked on top of each other.

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