Plum blossom high-torque high-rotating-speed flexible high-precision main shaft connecting device

Abstract

The utility model discloses a plum blossom 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 the inner sides of the first half coupling and the second half coupling are provided with clamping jaws. A plum-blossom-shaped elastic body is further arranged between the first half coupling and the second half coupling; according to the utility model, when the plum blossom type elastic body is used by stacking a plurality of diaphragms, the plum blossom type elastic body has higher elasticity and torsional rigidity and can provide reliable power transmission and positioning functions, and the diaphragms can absorb vibration and impact and compensate radial, angular and axial deviations, so that other mechanical elements are effectively protected, and the service life of the coupling is prolonged; according to the utility model, when the plum-blossom-shaped elastic body is integrally arranged, the plum-blossom-shaped elastic body made of high-strength polyurethane has the effects of wear resistance, oil resistance, high bearing capacity, long service life, safety and reliability.

Description

TECHNICAL FIELD

[0001] The utility model relates to a coupling technical field, concretely is a plum blossom high torque high speed flexible high-precision main shaft coupling device. BACKGROUND

[0002] A coupling is a mechanical component used to connect two shafts for common rotation to transmit torque and motion. Due to various reasons, the mass center or inertia axis of the coupling does not coincide with the axis of rotation, which will produce unbalanced centrifugal inertia force, centrifugal inertia couple and dynamic deflection (vibration mode) during operation. This unbalance will inevitably cause vibration of the shaft system, thereby affecting the normal operation and service life of the machine. The two shafts connected by the coupling will produce relative displacement due to manufacturing errors, installation, relative movement between parts and other factors.

[0003] Chinese patent publication No. CN 108757760 A discloses a plum blossom elastic coupling, the main content of which is as follows: it comprises 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, and the end faces of the left half coupling and the right half coupling are both provided with plum blossom teeth; the plum blossom elastic body is provided with a cylindrical hole at the center position, and the left half coupling and the right half coupling are both provided with a boss inside the teeth; the two side faces of the teeth are concave arc-shaped, and the plum blossom elastic body is installed between the left half coupling and the right half coupling.

[0004] Although the plum blossom elastic coupling in the above-mentioned patent is provided with a plum blossom elastic body in the middle, it cannot meet the vibration reduction, buffering and electrical insulation performance of the coupling according to the working requirements in actual application; it does not have the ability of large axial, radial and angular compensation. UTILITY MODEL CONTENT

[0005] The utility model aims at providing a plum blossom high torque high speed flexible high-precision main shaft coupling device, which can select different plum blossom elastic bodies according to actual working requirements, can meet the vibration reduction, buffering and electrical insulation performance of the coupling according to the working requirements, and has the ability of large axial, radial and angular compensation, so as to solve the technical problems proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A plum blossom high torque high speed flexible high-precision main shaft coupling device, comprising a first half coupling and a second half coupling, the inner sides of the first half coupling and the second half coupling are both provided with a clamping jaw, and a plum blossom type elastic body is further arranged between the first half coupling and the second half coupling;

[0008] The plum blossom type elastic body is integrally formed or stacked by multiple plum blossom type diaphragms.

[0009] As a further technical scheme of the utility model, the first half coupling and the second half coupling are composed of the same structure and are symmetrically arranged.

[0010] As a further technical scheme of the utility model, the outer end of the first half coupling and the second half coupling is integrally provided with a rim.

[0011] As a further technical scheme of the utility model, the rim is transversely penetrated by an open slot, and the open slot divides the rim into two parts.

[0012] As a further technical scheme of the utility model, a threaded hole is formed in the outer side of the rim, and a counterbore bolt is arranged in the threaded hole.

[0013] As a further technical scheme of the utility model, when the plum blossom type elastic body is stacked by multiple plum blossom type diaphragms, multiple shaft holes are formed around each diaphragm, and the multiple plum blossom type diaphragms are connected by a pin shaft.

[0014] As a further technical scheme of the utility model, when the plum blossom type elastic body is integrally arranged, the plum blossom type elastic body is made of high-strength polyurethane.

[0015] Compared with the prior art, the utility model has the advantages that:

[0016] 1. The first half coupling and the second half coupling are composed of the same structure and are symmetrically arranged, the outer end of the first half coupling and the second half coupling is integrally provided with a rim, the rim is made of 40Cr, the machining precision of the rim is below 6, the gap is small, and the fastening type can improve the gain of the servo motor through the damping property of the plum blossom type elastic body.

[0017] 2. When the plum blossom type elastic body is stacked by multiple diaphragms, the plum blossom type elastic body has high elasticity and torsional stiffness, can provide reliable power transmission and positioning function, the diaphragm can absorb vibration and impact and compensate radial, angular and axial deviation, effectively protects other mechanical elements, and prolongs the service life of the coupling.

[0018] 3. When the plum blossom type elastic body is integrally arranged, the plum blossom type elastic body made of high-strength polyurethane has the effects of wear resistance, oil resistance, large carrying capacity, long service life, safety and reliability, makes the coupling stable and reliable during use, has good damping, buffering and electrical insulation performance, and has large axial, radial and angular compensation capacity.

[0019] 4. The utility model discloses, when the edge section is connected with motor main shaft or transmission shaft, the open slot makes the edge section have certain elastic deformation ability, and in addition the cooperation of counterbore bolt can make the edge section tightly hold the outer surface of the shaft, thereby improving the transmission effect of the shaft and guaranteeing the transmission precision of the shaft. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is the three-dimensional structure schematic diagram of the utility model.

[0021] Figure 2 It is the front view of the utility model Figure 1 .

[0022] Figure 3 It is the split structure schematic diagram of the utility model Figure 1 .

[0023] In the drawing: 1 - first half coupling, 2 - second half coupling, 3 - plum blossom type elastic body, 4 - pin shaft, 5 - edge section, 6 - open slot, 7 - counterbore bolt. DETAILED DESCRIPTION

[0024] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0025] Please refer to Figures 1-3 , the utility model discloses an embodiment, a plum blossom high-torque high-speed flexible high-precision main shaft coupling device, including first half coupling 1 and second half coupling 2, the first half coupling 1 and second half coupling 2 inside are equipped with the dog, still be equipped with plum blossom type elastic body 3 between first half coupling 1 and second half coupling 2.

[0026] The plum blossom type elastic body 3 is integrally formed or is stacked by multiple plum blossom type diaphragms.

[0027] Embodiment one

[0028] In the embodiment, when the plum blossom type elastic body 3 is stacked by multiple plum blossom type diaphragms, multiple shaft holes are formed around each diaphragm, and the multiple plum blossom type diaphragms are connected by a pin shaft 4. The diaphragm is made of stainless steel.

[0029] By adopting the above technical scheme, the plum blossom type elastic body 3 is stacked by multiple diaphragms, has high elasticity and torsional stiffness, can provide reliable power transmission and positioning function, the diaphragm can absorb vibration and impact and compensate radial, angular and axial deviation, effectively protect other mechanical elements, and prolong the service life of the coupling.

[0030] Embodiment two

[0031] In this embodiment, the plum blossom type elastic body 3 is made of high-strength polyurethane when it is integrally arranged.

[0032] By adopting the above technical scheme, the plum blossom type elastic body 3 made of high-strength polyurethane has the effects of wear resistance, oil resistance, large carrying capacity, long service life and safety and reliability.

[0033] The coupling is stable and reliable in use, has good vibration reduction, buffering and electrical insulation performance, and has large axial, radial and angular compensation capacity.

[0034] In this embodiment, the first half coupling 1 and the second half coupling 2 are composed of the same structure and are symmetrically arranged; the outer end of the first half coupling 1 and the second half coupling 2 is integrally provided with a side joint 5.

[0035] By adopting the above technical scheme, the side joint 5 is made of 40Cr, the machining precision of the side joint is below 6 levels, the fitting clearance is small, and the gain of the servo motor can be improved through the vibration reduction of the plum blossom type elastic body 3.

[0036] It is mainly suitable for frequently starting, forward and reverse rotation, high speed, high torque and high reliability working occasions, the working environment temperature is-20℃~+110℃, the transmission nominal torque is 75~655Nm, and the allowable speed is 12900~18500r / min.

[0037] In this embodiment, the side joint 5 is transversely penetrated by the open slot 6, and the open slot 6 divides the side joint 5 into two parts; the side joint 5 is provided with a threaded hole on the outside, and a counterbore bolt 7 is arranged in the threaded hole.

[0038] By adopting the above technical scheme, when the side joint 5 is connected with the motor main shaft or the transmission shaft, the open slot 6 enables the side joint 5 to have a certain elastic deformation capacity, and the cooperation of the counterbore bolt 7 can make the side joint 5 tightly clamped on the outer surface of the shaft, thereby improving the transmission effect of the shaft and ensuring the transmission accuracy of the shaft.

[0039] The utility model discloses a working principle is: first half coupling 1 and second half coupling 2 adopt the same structure composition, and present symmetrical type setting, the outer end of first half coupling 1 and second half coupling 2 all integrative type is equipped with the edge node 5, the edge node 5 adopts the material for 40Cr and makes, and the edge node processing accuracy is below 6 level, and the cooperation clearance is small, and the fastening type can improve the gain of servo motor through the damping nature of plum blossom type elastomer 3.

[0040] When plum blossom type elastomer 3 is used by the stack of multiple diaphragms, it has high elasticity and torsional stiffness, can provide reliable power transmission and positioning function, the diaphragm can absorb vibration and impact and compensate radial, angular and axial deviation, effectively protect other mechanical elements, and prolong the service life of the coupling.

[0041] When plum blossom type elastomer 3 is integrally arranged, the plum blossom type elastomer 3 made of high-strength polyurethane has the effects of wear resistance, oil resistance, high carrying capacity, long service life, safety and reliability, so that the coupling is stable and reliable in use, has good damping, buffering and electrical insulation performance, and has large axial, radial and angular compensation capacity.

[0042] When the edge node 5 is connected with the motor main shaft or the transmission shaft, the open slot 6 makes the edge node 5 have a certain elastic deformation capacity, and the cooperation of the counterbore bolt 7 can make the edge node 5 tightly clamp on the outer surface of the shaft, thereby improving the transmission effect of the shaft and ensuring the transmission accuracy of the shaft.

[0043] For those skilled in the art, it is obvious that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. 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, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0044] In addition, it should be understood that, although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and the skilled person should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by the skilled person.

Claims

1. A high-torque, high-speed, flexible, high-precision spindle connection device with a plum blossom design, characterized by: Including first half coupling (1) and second half coupling (2), the first half coupling (1) and second half coupling (2) inside are equipped with dog, and still be equipped with plum blossom type elastomer (3) between first half coupling (1) and second half coupling (2); The plum blossom type elastomer (3) is stacked by multiple pieces of plum blossom type diaphragms, multiple pieces of plum blossom type diaphragms are connected by a pin (4), and each diaphragm is provided with multiple shaft holes around the diaphragm.

2. The star-shaped high-torque high-rotating-speed flexible high-precision spindle coupling device according to claim 1, characterized in that: The first half coupling (1) and the second half coupling (2) are composed of the same structure and are symmetrically arranged.

3. The star-shaped high-torque high-rotating-speed flexible high-precision spindle coupling device according to claim 2, characterized in that: The outer end of the first half coupling (1) and the second half coupling (2) is integrally provided with a side joint (5).

4. The star-shaped high-torque high-rotating-speed flexible high-precision spindle coupling device according to claim 3, characterized in that: The side joint (5) is transversely penetrated by an open slot (6), and the open slot (6) divides the side joint (5) into two parts.

5. The star-shaped high-torque high-rotating-speed flexible high-precision spindle coupling device according to claim 4, characterized in that: The outer side of the side joint (5) is provided with a threaded hole, and the threaded hole is provided with a counterbore bolt (7).

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