Single-flange plum-blossom-shaped high-torque high-rotating-speed flexible high-precision main shaft connecting device

Abstract

The utility model discloses a single-flange plum-blossom-shaped 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, and a plum-blossom-shaped elastic body is arranged between the first half coupling and the second half coupling. The first half coupling, the second half coupling and the plum blossom elastic body are clamped and matched with each other; the first half coupling comprises a first section body, and a tension band is integrally arranged at one end of the first section body; an opening seam is formed in the tension band from one side to the other side in a penetrating manner; according to the utility model, the tension sleeve is connected with the motor shaft and then is locked through the bolt, so that the coupler and the motor shaft are tightly held and fixed; the two C-shaped clamping rings have certain elastic deformation capacity under the cooperation of the opening seam, and when the two C-shaped clamping rings are clamped on the output shaft of the motor, the two C-shaped clamping rings are oppositely locked through the two hexagon socket screws, so that the two C-shaped clamping rings can be firmly clamped on the output shaft of the motor, the clamping effect is good, and the transmission efficiency is higher.

Description

Technical Field

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

[0002] A coupling is a mechanical component used to connect two shafts so that they rotate together to transmit torque and motion. Due to various reasons, the center of mass or inertia axis of the coupling does not coincide with its rotation axis, which will produce unbalanced centrifugal inertia force, centrifugal inertia couple force and dynamic deflection (vibration mode) during operation. This unbalanced phenomenon will inevitably cause vibration of the shaft system, thereby affecting the normal operation and service life of the machine due to errors, deformation caused by shaft load, base deformation, bearing wear, temperature changes (thermal expansion and contraction), etc. The two shafts connected by the coupling produce relative displacement due to various factors such as manufacturing errors, installation, and relative movement between components.

[0003] Chinese patent announcement number CN 205154952 U discloses a plum blossom elastic coupling, the main contents of which are: comprising a left half coupling, a right half coupling and a plum blossom elastic body; the left half coupling and the right half coupling are both provided with a center hole, the end faces of the left half coupling and the right half coupling are both provided with plum blossom-shaped convex teeth, a cylindrical hole is provided at the center of the plum blossom elastic body, a boss is provided on the left half coupling and the right half coupling and is located on the inner side of the convex teeth, the two side surfaces of the convex teeth are concave arc-shaped, the plum blossom-shaped elastic body is installed between the left half coupling and the right half coupling, and the cylindrical boss of the plum blossom-shaped elastic body is installed in the gap between the convex teeth of the left half coupling and the right half coupling.

[0004] The left and right half couplings of the plum blossom elastic coupling in the above patent are connected to the output shaft and the transmission shaft of the motor through a shaft tube. The connection method is relatively simple and is fixed by a flat key and screw locking method, and the clamping effect is poor. Utility Model Content

[0005] The purpose of the utility model is to provide a single-flange plum blossom high-torque, high-speed, flexible, high-precision spindle connection device, which is connected to the output shaft of the motor by a clamping manner, thereby improving the connection effect between the coupling and the motor drive shaft, and the other end is fixed by a flange or shaft connection, with a variety of optional connection methods; 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 plum-shaped high-torque, high-speed, flexible, and high-precision main shaft connection device comprises a first half coupling and a second half coupling, wherein a plum-shaped elastic body is arranged between the first half coupling and the second half coupling;

[0008] The first half coupling, the second half coupling and the plum blossom elastic body are engaged with each other;

[0009] The first half coupling comprises a first joint body, one end of which is integrally provided with a hoop; the hoop is provided with an opening slot extending from one side to the other side;

[0010] The second half coupling has a second joint body, one end of which is welded with a shaft cylinder, and the other end of which is welded with a flange.

[0011] As a further technical solution of the utility model, the opening seam divides the hoop into two C-shaped clamping rings, and threaded holes are penetrated through the upper ends and lower ends of the two clamping rings.

[0012] As a further technical solution of the utility model, a hexagon socket bolt is connected to the inner thread of the threaded hole, and two hexagon socket bolts are arranged opposite to each other.

[0013] As a further technical solution of the utility model, a plurality of first protruding claws are integrally provided at one end of the first segment away from the hoop.

[0014] As a further technical solution of the utility model, a second claw is integrally provided at one end of the second joint body away from the shaft cylinder.

[0015] As a further technical solution of the utility model, the plum blossom elastomer has a plurality of plum blossom petals, and both sides of each plum blossom petal are integrally provided with convex points.

[0016] As a further technical solution of the utility model, the plurality of plum petals are grouped into two, and each group of plum petals is embedded between two second protruding claws; and a first protruding claw is clamped between each group of plum petals.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model connects the hoop with the motor shaft and then locks it with bolts, thereby realizing the clamping and fixing of the coupling and the motor shaft; the two C-shaped clamps have a certain elastic deformation ability under the cooperation of the open seam. When the two C-shaped clamps are clamped on the motor output shaft, they are locked in opposite directions by two hexagon socket bolts, so that the two C-shaped clamps can be firmly clamped on the motor output shaft, thereby meeting the coupling's ability to connect motor output shafts of different diameters, and the clamping effect is better, and the transmission efficiency is higher;

[0019] 2. In the utility model, the shaft cylinder can be inserted into the transmission shaft, and then connected by a double round key, a single round key or a flat key to realize the connection between the shaft cylinder and the transmission shaft; when some transmission shafts have special transmission, they can be connected by flanges to realize the connection between the coupling and the transmission shaft, which increases the diversified connection of the coupling and makes it more flexible to use;

[0020] 3. During operation, the utility model utilizes a plum blossom elastic body placed between the two coupling halves to achieve connection of the two coupling halves; when the two axes are relatively offset, the plum blossom elastic body undergoes corresponding elastic deformation to play an automatic compensation role. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0022] Figure 2 This utility model Figure 1 .

[0023] Figure 3 It is a schematic diagram of the plane structure of the utility model.

[0024] Figure 4 This utility model Figure 2 Right view of .

[0025] Figure 5 This utility model Figure 4 AA section view.

[0026] Figure 6 This utility model Figure 5 Schematic diagram of the split structure.

[0027] Figure 7 This utility model Figure 6 Schematic diagram from another perspective.

[0028] Figure 8 It is a structural schematic diagram of the second half coupling in the utility model.

[0029] Fig. 9 It is a structural schematic diagram of the first half coupling in the utility model.

[0030] In the figure: 1-first half coupling, 2-plum blossom elastic body, 3-second half coupling, 4-hexagon socket bolt;

[0031] 11-hoop, 12-opening slit, 13-first section, 14-first protruding claw;

[0032] 31-second section, 32-second lug, 33-shaft cylinder, 34-flange. DETAILED DESCRIPTION

[0033] 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.

[0034] See also Figure 1-9 In the embodiment of the utility model, a single-flange plum blossom high-torque high-speed flexible high-precision main shaft connection device comprises a first half coupling 1 and a second half coupling 3, and a plum blossom elastic body 2 is arranged between the first half coupling 1 and the second half coupling 3;

[0035] The first half coupling 1, the second half coupling 3 and the plum blossom elastic body 2 are engaged with each other; the first half coupling 1 includes a first joint body 13, one end of which is integrally provided with a hoop 11; the hoop 11 is penetrated from one side to the other side and has an open slit 12;

[0036] The second half coupling 3 has a second joint body 31 , one end of the second joint body 31 is welded with a shaft cylinder 33 , and the other end of the shaft cylinder 33 is welded with a flange 34 .

[0037] By adopting the above technical solution, when connecting with the output shaft of the motor, the hoop 11 is connected to the motor shaft and then locked by bolts, thereby achieving a tight fixation of the coupling and the motor shaft.

[0038] The shaft cylinder 33 can be inserted into the transmission shaft, and then connected by a double round key, a single round key or a flat key to achieve the connection between the shaft cylinder 33 and the transmission shaft;

[0039] When some transmission shafts have special transmission requirements, they can be connected via flange 34 to achieve connection between the coupling and the transmission shaft, increasing the variety of connections of the coupling and making it more flexible to use.

[0040] In this embodiment, the opening slit 12 divides the hoop 11 into two C-shaped clamping rings, and threaded holes are formed through the upper and lower ends of the two clamping rings.

[0041] Specifically, a hexagon socket bolt 4 is threadedly connected to the threaded hole, and two hexagon socket bolts 4 are arranged opposite to each other.

[0042] By adopting the above technical solution, the two C-shaped clamping rings have a certain elastic deformation ability under the cooperation of the open seam 12. When the two C-shaped clamping rings are clamped on the motor output shaft, they are locked in opposite directions by two hexagon socket bolts 4. Therefore, the two C-shaped clamping rings can be firmly clamped on the motor output shaft, thereby satisfying the coupling's ability to connect motor output shafts of different diameters, with better clamping effect and higher transmission efficiency.

[0043] In this embodiment, the end of the first section 13 away from the hoop 11 is integrally provided with a plurality of first claws 14; the end of the second section 31 away from the shaft tube 33 is integrally provided with a second claw 32; the plurality of plum petals are grouped into two, and each group of plum petals is embedded between two second claws 32; a first claw 14 is clamped between each group of plum petals.

[0044] Furthermore, the plum blossom elastic body 2 is placed between the two half coupling claws to achieve the connection of the two half couplings; when the two axes are relatively offset, the plum blossom elastic body 2 undergoes corresponding elastic deformation to play an automatic compensation role.

[0045] The coupling has a simple structure, small radial size, light weight, small moment of inertia, and is suitable for medium and high speed applications. It works stably and reliably, and has good vibration reduction, buffering and electrical insulation properties. It has large axial, radial and angular compensation capabilities, and the high-strength polyurethane elastic element is wear-resistant and oil-resistant, has a large load-bearing capacity, a long service life, is reliable, does not require lubrication, has low maintenance workload, and can operate continuously for a long time.

[0046] In this embodiment, the plum blossom elastomer 2 has multiple plum blossom petals, and each plum blossom petal is integrally provided with protrusions on both sides. The setting of the protrusions increases the fit with the two half couplings and plays a role in eliminating gaps, thereby ensuring the stability of the coupling during operation.

[0047] The plum blossom elastic body 2 is made of high-strength polyurethane. It is wear-resistant and oil-resistant, has a large load-bearing capacity, a long service life, is safe and reliable, works stably and reliably, has good vibration reduction, buffering and electrical insulation performance, and has large axial, radial and angular compensation capabilities.

[0048] The working principle of the utility model is: when installing, the hoop 11 is connected to the motor shaft, and then locked by bolts, so that the coupling and the motor shaft are clamped and fixed; the two C-shaped clamps have a certain elastic deformation ability under the cooperation of the open slit 12, and when the two C-shaped clamps are clamped on the motor output shaft, they are locked in opposite directions by two hexagon socket bolts 4, so that the two C-shaped clamps can be firmly clamped on the motor output shaft, so that the coupling can be connected to motor output shafts of different diameters, and the clamping effect is better, and the transmission efficiency is higher;

[0049] The shaft cylinder 33 can be inserted into the transmission shaft, and then connected by a double round key, a single round key or a flat key to achieve the connection between the shaft cylinder 33 and the transmission shaft;

[0050] When some transmission shafts have special transmission, they can be connected through flange 34 to achieve the connection between the coupling and the transmission shaft, increasing the diversified connection of the coupling and making it more flexible to use;

[0051] During operation, the plum blossom elastic body 2 is placed between the two half coupling claws to achieve the connection of the two half couplings; when the two axes are relatively offset, the plum blossom elastic body 2 undergoes corresponding elastic deformation to play an automatic compensation role.

[0052] 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.

[0053] 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 plum blossom high-torque high-speed flexible high-precision spindle connection device, characterized in that: It comprises a first half coupling (1) and a second half coupling (3), wherein a plum blossom elastic body (2) is arranged between the first half coupling (1) and the second half coupling (3); The first half coupling (1), the second half coupling (3) and the plum blossom elastic body (2) are mutually engaged and matched; The first half coupling (1) comprises a first joint body (13), one end of which is integrally provided with a hoop (11); the hoop (11) is provided with an opening slit (12) extending from one side to the other side; The second half coupling (3) has a second joint body (31), one end of the second joint body (31) is welded with a shaft cylinder (33), and the other end of the shaft cylinder (33) is welded with a flange (34).

2. The single-flange plum blossom high-torque high-speed flexible high-precision spindle connection device according to claim 1 is characterized in that: The opening slit (12) divides the hoop (11) into two C-shaped clamping rings, and threaded holes are formed through the upper and lower ends of the two clamping rings.

3. The single-flange plum blossom high-torque high-speed flexible high-precision spindle connection device according to claim 2 is characterized in that: The threaded hole is threadedly connected with a hexagon socket bolt (4), and two hexagon socket bolts (4) are arranged opposite to each other.

4. The single-flange plum blossom high-torque high-speed flexible high-precision spindle connection device according to claim 1 is characterized in that: A plurality of first protruding claws (14) are integrally provided at one end of the first segment (13) away from the hoop (11).

5. The single-flange plum blossom high-torque high-speed flexible high-precision spindle connection device according to claim 1 is characterized in that: A second pawl (32) is integrally provided at one end of the second joint body (31) away from the shaft cylinder (33).

6. The single-flange plum blossom high-torque high-speed flexible high-precision spindle connection device according to claim 1 is characterized in that: The plum blossom elastic body (2) has a plurality of plum blossom petals, and convex points are integrally provided on both sides of each plum blossom petal.

7. The single-flange plum blossom high-torque high-speed flexible high-precision spindle connection device according to claim 6 is characterized in that: The plurality of plum petals are grouped into two, and each group of plum petals is embedded between two second protruding claws (32); and a first protruding claw (14) is clamped between each group of plum petals.

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