Single-flange diaphragm type high-torque high-rotating-speed flexible high-precision main shaft connecting device

Abstract

The utility model discloses a single-flange 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 first half coupling and a second half coupling. A diaphragm is installed between the first half coupling and the second half coupling in a matched mode. A plurality of locking bolts are mounted on the diaphragm in a matched manner; the mounting directions of every two adjacent locking bolts are opposite, one of the two adjacent locking bolts is in threaded connection with the first half coupling, and the other one of the two adjacent locking bolts is connected with the second half coupling; when the coupling is used, the locking bolts are connected with the first half coupling and the second half coupling, and the bolt caps of the locking bolts are sunk in the counterbores, so that the outer surfaces of the first half coupling and the second half coupling are very smooth, the turning radius of the coupling is not increased, and the installation space is more flexible.

Description

Technical Field

[0001] The utility model specifically relates to the technical field of couplings, in particular to a single-flange diaphragm type high-torque, high-speed, flexible and high-precision main shaft connection device. Background Art

[0002] The single flange diaphragm coupling is composed of a stainless steel diaphragm group, a flange, and a coupling side section. It is composed of several groups of diaphragms (stainless steel thin plates) that are staggeredly connected to the flange and the coupling side section with bolts. Each group of diaphragms is composed of several superimposed pieces.

[0003] Chinese patent announcement number CN 220687884 U discloses a flange diaphragm coupling, including two symmetrically arranged shaft sleeves, a flange is added to one end of the shaft sleeves close to each other, the two shaft sleeves are correspondingly spaced, a diaphragm is added at the connection between the two shaft sleeves, the diaphragm is connected to the flange on the shaft sleeves by fasteners, the shaft sleeves and the diaphragm are connected to form an integral coupling by the fasteners, and two reinforcing units are symmetrically installed at the connection between the two shaft sleeves, and the two shaft sleeves are reinforced and connected by the reinforcing units.

[0004] Although the diaphragm in the above patent is also connected to the two half couplings by bolts, and the bolts are connected by penetrating both ends, and are also installed with extensions and connectors, the rotation radius of the coupling is increased. Especially when used in a relatively limited space, the protruding bolts, extensions and connectors will cause insufficient rotation space, and the bolts are easy to loosen in the above connection method. Utility Model Content

[0005] The purpose of the utility model is to provide a single-flange diaphragm type high-torque, high-speed, flexible, high-precision spindle connection device. The bolts between the two half-couplings and the diaphragm are countersunk and embedded, which effectively reduces the rotation radius of the coupling, especially when used in a relatively limited space, and the operation is smoother; so as to solve the technical problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A single flange diaphragm type high torque high speed flexible high precision spindle connection device, comprising

[0008] The first half coupling and the second half coupling, a diaphragm is installed between the first half coupling and the second half coupling; a plurality of locking bolts are installed on the diaphragm; the installation directions of every two adjacent locking bolts are opposite, one of the two adjacent locking bolts is threadedly connected to the first half coupling, and the other is connected to the second half coupling;

[0009] The first half coupling and the second half coupling are both provided with threaded holes and countersunk holes arranged in an interval manner on one side close to the diaphragm.

[0010] As a further technical solution of the utility model, the threaded hole formed on the first half coupling is arranged in a stepped hole type and is penetrated along the axial direction thereof.

[0011] As a further technical solution of the utility model, a flange is welded on a side of the first half coupling away from the diaphragm, and at least one slot is provided on the flange.

[0012] As a further technical solution of the utility model, a clamp is integrally provided on the side of the second half coupling away from the diaphragm.

[0013] As a further technical solution of the utility model, the clamp is horizontally penetrated by an open groove and divided into two, and the clamp is locked and fixed by two countersunk bolts.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. In the utility model, when in use, the locking bolt is connected with the first half coupling and the second half coupling, and the bolt cap is sunk into the countersunk hole, so that the outer surface of the first half coupling and the second half coupling is very flat, the turning radius of the coupling is not increased, and the installation space is more flexible;

[0016] 2. The utility model, when installing, first insert the locking bolt into the diaphragm, then insert the locking bolt with the nut facing one end of the second half coupling into the countersunk hole on the second half coupling, then pass the locking bolt with the thread facing one end of the second half coupling through the first half coupling and the diaphragm and then threadedly connect with the threaded hole on the second half coupling; the first half coupling, the second half coupling and the diaphragm are connected and fixed; the structure is compact, zero backlash, high strength, long service life, no rotational clearance, not affected by temperature and oil pollution, acid and alkali resistance and corrosion resistance;

[0017] 3. In the utility model, when the coupling is connected through a flange and the driven shaft (the shaft to be driven) is connected through a flange, the protrusion is stuck in the groove, so that the radial shear force of the bolts on the flange can be reduced during power transmission, thereby improving the power transmission effect and avoiding the bolts from breaking or deforming due to large radial torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0019] Figure 2 This utility model Figure 1 The structural diagram on the right side of .

[0020] Figure 3 This utility model Figure 1 Schematic diagram of the split structure.

[0021] Figure 4 It is another perspective schematic diagram of 3 in the utility model.

[0022] In the figure: 1-first half coupling, 2-second half coupling, 3-diaphragm, 4-counterbore bolt, 5-locking bolt, 6-threaded hole, 7-counterbore hole, 8-flange, 9-slot, 10-clamp, 11-open slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 In the embodiment of the utility model, a single flange diaphragm type high torque high speed flexible high precision spindle connection device comprises

[0025] A first half coupling 1 and a second half coupling 2, a diaphragm 3 is installed between the first half coupling 1 and the second half coupling 2; a plurality of locking bolts 5 are installed on the diaphragm 3; every two adjacent locking bolts 5 are installed in opposite directions, one of the two adjacent locking bolts 5 is threadedly connected to the first half coupling 1, and the other is connected to the second half coupling 2;

[0026] The first half coupling 1 and the second half coupling 2 are both provided with threaded holes 6 and countersunk holes 7 arranged in an interval manner on one side close to the diaphragm 3 .

[0027] By adopting the above technical solution, when in use, the locking bolt 5 is connected to the first half coupling 1 and the second half coupling 2, and the bolt cap thereof is sunk into the countersunk hole 7, so that the outer surfaces of the first half coupling 1 and the second half coupling 2 are very flat, the turning radius of the coupling is not increased, and the installation space is more flexible.

[0028] In this embodiment, the threaded hole 6 formed on the first half coupling 1 is a stepped hole and is formed through the first half coupling 1 in the axial direction.

[0029] By adopting the above technical solution, during installation, the locking bolt 5 is first inserted into the diaphragm 3, and then the locking bolt 5 with the nut facing the end of the second half coupling 2 is embedded in the countersunk hole 7 on the second half coupling 2, and then the locking bolt 5 with the thread facing the end of the second half coupling 2 passes through the first half coupling 1 and the diaphragm 3 and is threadedly connected with the threaded hole 6 on the second half coupling 2; the first half coupling 1, the second half coupling 2 and the diaphragm 3 are connected and fixed;

[0030] The coupling has a compact structure, zero backlash, high strength, long service life, no rotational clearance, is not affected by temperature and oil pollution, is acid-resistant, alkali-resistant and corrosion-resistant, and is widely used in shaft transmission of various mechanical devices, such as high-power water pumps, chemical pumps, fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, metallurgical machinery, aviation, ship high-speed power systems, steam turbines, piston power systems, crawler vehicles, as well as high-speed generator sets and high-power mechanical transmission systems. After dynamic balancing, it can be widely used in high-speed transmission shaft systems.

[0031] In this embodiment, a flange 8 is welded on a side of the first half coupling 1 away from the diaphragm 3 , and at least one slot 9 is provided on the flange 8 .

[0032] By adopting the above technical solution, when the coupling is connected through the flange 8 and the driven shaft (the shaft to be driven) is connected by the flange, the protrusion is stuck in the groove 9. In this way, the radial shear force of the bolts on the flange 8 can be reduced during power transmission, thereby improving the power transmission effect and avoiding the bolts from breaking or deforming due to large radial torque.

[0033] In this embodiment, a clamp 10 is integrally provided on the side of the second half coupling 2 away from the diaphragm 3 ; the clamp 10 is horizontally penetrated by an open groove 11 , divided into two, and the clamp 10 is locked and fixed by two countersunk bolts 4 .

[0034] By adopting the above technical solution, after the open groove 11 passes through the clamp 10 horizontally, two C-shaped clamps will be formed, and the side wings have a certain elastic deformation ability. Combined with the locking of the countersunk bolt 4, it can clamp motor shafts of different diameters. It has a wide range of applications, good clamping effect, and high transmission efficiency.

[0035] Furthermore, the diaphragm 3 is a stainless steel diaphragm: it is made of stainless steel and is composed of multiple diaphragms stacked together. It has high elasticity and torsional stiffness, can provide reliable power transmission and positioning functions, and can absorb vibrations and shocks as well as compensate for radial, angular and axial deviations, effectively protecting other mechanical components and extending the service life of the coupling.

[0036] The single-flange diaphragm type high-torque, high-speed, flexible, high-precision spindle connection device is all processed using high-end precision processing equipment in a constant temperature workshop. The processing accuracy is below level 6, the matching clearance is small, and the gain of the servo motor is improved through high torsional rigidity and vibration reduction of elastic metal components.

[0037] It is mainly suitable for shaft transmission in high temperature, high speed and corrosive medium working environment. The working environment temperature is -30℃~+120℃, the transmitted nominal torque is 60~800Nm, and the allowable speed is 8000~18000r / min.

[0038] The working principle of the utility model is as follows: when installing, firstly, the locking bolt 5 is inserted into the diaphragm 3, and then the locking bolt 5 with the nut facing one end of the second half coupling 2 is embedded into the countersunk hole 7 on the second half coupling 2, and then the locking bolt 5 with the thread facing one end of the second half coupling 2 passes through the first half coupling 1 and the diaphragm 3 and is threadedly connected with the threaded hole 6 on the second half coupling 2; the first half coupling 1, the second half coupling 2 and the diaphragm 3 are connected and fixed;

[0039] The coupling has a compact structure, zero backlash, high strength, long service life, no rotational clearance, is not affected by temperature and oil pollution, is acid-resistant, alkali-resistant and corrosion-resistant, and is widely used in shaft transmission of various mechanical devices, such as high-power water pumps, chemical pumps, fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, metallurgical machinery, aviation, ship high-speed power systems, steam turbines, piston power systems, crawler vehicles, as well as high-speed generator sets and high-power mechanical transmission systems. After dynamic balancing, it can be widely used in high-speed transmission shaft systems.

[0040] When in use, the locking bolt 5 is connected to the first half coupling 1 and the second half coupling 2, and the bolt cap is sunk into the countersunk hole 7, so that the outer surface of the first half coupling 1 and the second half coupling 2 is very flat, the turning radius of the coupling is not increased, and the installation space is more flexible.

[0041] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0042] In addition, it should be understood that although this specification is described according to implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Technicians with this skill should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A single flange diaphragm type high torque high speed flexible high precision spindle connection device, characterized in that: include A first half coupling (1) and a second half coupling (2), a diaphragm (3) being mounted between the first half coupling (1) and the second half coupling (2); a plurality of locking bolts (5) being mounted on the diaphragm (3); the mounting directions of every two adjacent locking bolts (5) being opposite, one of the two adjacent locking bolts (5) being threadedly connected to the first half coupling (1), and the other being connected to the second half coupling (2); The first half coupling (1) and the second half coupling (2) are both provided with threaded holes (6) and countersunk holes (7) arranged in an intermittent manner on one side close to the diaphragm (3).

2. The single flange diaphragm type high torque high speed flexible high precision spindle connection device according to claim 1 is characterized in that: The threaded hole (6) formed on the first half coupling (1) is arranged in a stepped hole type and is penetrated along the axial direction thereof.

3. The single flange diaphragm type high torque high speed flexible high precision spindle connection device according to claim 1 is characterized in that: A flange (8) is welded on the side of the first half coupling (1) away from the diaphragm (3), and at least one slot (9) is provided on the flange (8).

4. The single flange diaphragm type high torque high speed flexible high precision spindle connection device according to claim 3 is characterized in that: A clamp (10) is integrally provided on the side of the second half coupling (2) away from the diaphragm (3).

5. The single flange diaphragm type high torque high speed flexible high precision spindle connection device according to claim 4 is characterized in that: The clamp (10) is horizontally penetrated by an open groove (11) and is divided into two parts, and the clamp (10) is locked and fixed by two countersunk bolts (4).

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