A locking ring for fixing a rotor alone

Abstract

The present invention discloses a locking ring for fixing a rotor alone, comprising an expansion ring and a pressure pad, wherein the pressure pad is detachably mounted on a mounting shaft, a limit key is arranged on one side of the mounting shaft, the pressure pad cooperates with the limit key, a pressure pad is respectively arranged on both sides of the expansion ring, two pressure pads are connected by a locking bolt, the pressure pad is located on the inner side of the expansion ring, and the two pressure pads clamp the expansion ring; the present invention is a locking ring for fixing a rotor alone, a locking ring which can synchronously lock the rotor and the shaft is installed between the mounting shaft and the rotor; the two pressure pads are locked against each other by several locking bolts, the expansion ring is expanded outwardly by the extrusion force of the pressure pad, the expansion ring is placed in the rotor shaft hole to lock the rotor outwardly, the two pressure pads lock the shaft inwardly, the rotor is fixed alone, and the rotor does not move axially.

Description

Technical Field

[0001] The invention belongs to the technical field of rotor locking rings, and in particular relates to a locking ring for independently fixing a rotor. Background Art

[0002] The existing rotor is mounted on the shaft, and the axial direction is not fixed separately, but is fixed by a bolt on the shaft end face. When the bolt on the shaft end face is loose, the multiple rotors on the shaft will move axially, causing accelerated wear of the rotor shaft hole and the shaft. Summary of the invention

[0003] In order to solve the above problems existing in the prior art, an object of the present invention is to provide a locking ring for independently fixing a rotor.

[0004] The technical solution adopted by the present invention is:

[0005] The locking ring for separately fixing a rotor comprises an expansion ring and a pressure pad, wherein the pressure pad is detachably mounted on a mounting shaft, a limit key is provided on one side of the mounting shaft, the pressure pad cooperates with the limit key, a pressure pad is provided on both sides of the expansion ring respectively, the two pressure pads are connected by a locking bolt, the pressure pad is located on the inner side of the expansion ring, and the two pressure pads clamp the expansion ring; a rotor is detachably mounted on the mounting shaft, the rotor cooperates with the limit key, the expansion ring is located between the rotor and the mounting shaft, the pressure pad is fixed to the mounting shaft and the limit key by friction force, the expansion ring is fixed to the rotor by friction force, and the expansion ring and the pressure pad are assembled by a locking bolt; the two pressure pads are locked to each other by the locking bolt, the expansion ring is expanded and locked to the rotor outwardly by the extrusion force of the pressure pad, the two pressure pads lock the mounting shaft inwardly, and the rotor does not move in the axial direction of the mounting shaft.

[0006] As a preferred embodiment of the present invention, one side of the expansion ring is provided with a notch one, and the notch one cooperates with the limit key, and one side of the pressure pad is provided with a notch two, and the notch two cooperates with the limit key.

[0007] As a preferred embodiment of the present invention, the clamping pad is provided with a plurality of threaded holes, the plurality of threaded holes are distributed in an array along the circumference of the end surface of the clamping pad, and the locking bolts are threadedly matched with the threaded holes.

[0008] As a preferred embodiment of the present invention, the expansion ring forms a trapezoidal surface on both sides of the notch, and the inner diameter of the two end surfaces of the expansion ring gradually decreases from outside to inside to form two wedge-shaped portions, a smooth portion is formed between the two wedge-shaped portions, and the two pressure pads are located on both sides of the smooth portion, and the two pressure pads respectively cooperate with the two wedge-shaped portions.

[0009] As a preferred embodiment of the present invention, a plurality of the rotors are provided on the installation shaft, and a locking ring is provided between each of the rotors and the installation shaft.

[0010] As a preferred embodiment of the present invention, the clamping pad is elastic and has a tendency to gradually reduce the second notch; the two clamping pads approaching each other tend to gradually increase the first notch of the expansion ring; the clamping pad locks the mounting shaft inwardly, and the expansion ring locks the rotor outwardly.

[0011] As a preferred embodiment of the present invention, the clamping pad is elastic and has a tendency to gradually reduce the second notch; the expansion ring is elastic and has a tendency to gradually reduce the first notch; the clamping pad locks the mounting shaft inwardly.

[0012] As a preferred embodiment of the present invention, the side of the expansion ring is provided with a plurality of sliding grooves, a sliding column is slidably provided in each of the sliding grooves, an expansion plate is fixedly provided at one end of the plurality of sliding columns away from each other, and the outer side surface of the expansion ring is provided with a plurality of reserved grooves, the plurality of reserved grooves and the plurality of sliding columns correspond one to one, and the expansion plate cooperates with the reserved grooves.

[0013] As a preferred embodiment of the present invention, a plurality of wedge-shaped protrusions are respectively disposed at the ends of the two compression pads that are close to each other, and the plurality of wedge-shaped protrusions correspond one-to-one to the plurality of sliding columns.

[0014] As a preferred embodiment of the present invention, the plurality of wedge-shaped protrusions have a tendency to cause the plurality of expansion plates to expand outwardly in all directions to lock the rotor, and the expansion ring has a tendency to cause the wedge-shaped portion to always contact the two pressure pads.

[0015] The beneficial effects of the present invention are as follows: the present invention is a locking ring for fixing the rotor alone, and a locking ring that can synchronously lock the rotor and the shaft is installed between the mounting shaft and the rotor; the two clamping pads are locked against each other by several locking bolts, the expansion ring is expanded outward by the squeezing force of the clamping pads, the expansion ring is placed in the rotor shaft hole to lock the rotor outward, the two clamping pads lock the shaft inward, the rotor is fixed alone, and the rotor does not move axially. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 The present invention Figure 1 A schematic diagram of the front view structure of

[0019] Figure 3 The present invention Figure 1Schematic diagram of the AA direction structure;

[0020] Figure 4 The present invention Figure 1 Schematic diagram of the locking ring structure;

[0021] Figure 5 The present invention Figure 4 Schematic diagram of the explosion structure;

[0022] Figure 6 The present invention Figure 4 A schematic structural diagram of another embodiment of the present invention;

[0023] Figure 7 The present invention Figure 6 Schematic diagram of the explosion structure. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention, that is, the embodiments described are only part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention.

[0026] Combine the following Figure 1-7The specific implementation of the present invention is described. In one embodiment of the present invention, a locking ring for fixing a rotor alone, the locking ring 14 includes an expansion ring 15 and a pressure pad 17, the pressure pad 17 is detachably mounted on the mounting shaft 11, a limit key 12 is provided on one side of the mounting shaft 11, the pressure pad 17 cooperates with the limit key 12, and a pressure pad 17 is provided on both sides of the expansion ring 15, and the two pressure pads 17 are connected by a locking bolt 18. The pressure pad 17 is located at the On the inner side of the expansion ring 15, the two pressure pads 17 clamp the expansion ring 15; the rotor 13 is detachably mounted on the installation shaft 11, the rotor 13 cooperates with the limit key 12, the expansion ring 15 is located between the rotor 13 and the installation shaft 11, the pressure pad 17 is fixed to the installation shaft 11 and the limit key 12 by friction, the expansion ring 15 is fixed to the rotor 13 by friction, and the expansion ring 15 and the pressure pad 17 are assembled by locking bolts 18. A locking ring 14 that can synchronously lock the rotor and the shaft is installed between the installation shaft 11 and the rotor 13; the two pressure pads 17 are locked against each other by several locking bolts 18, the expansion ring 15 is expanded outward by the squeezing force of the pressure pads 17, the expansion ring 15 is placed in the rotor shaft hole to lock the rotor outward, the two pressure pads 17 lock the shaft inward, the rotor 13 is fixed alone, and the rotor 13 does not move axially.

[0027] Advantageously, a notch 16 is provided on one side of the expansion ring 15, and the notch 16 cooperates with the limit key 12. A notch 2 19 is provided on one side of the pressure pad 17, and the notch 2 19 cooperates with the limit key 12. The minimum size of the notch 16 and the notch 2 19 meets the requirement of being embedded in the limit key 12, and after being embedded, the circumference of the locking ring 14 and the installation shaft 11 can be limited so that relative rotation does not occur.

[0028] Advantageously, the pressure pad 17 is provided with a plurality of threaded holes 20, which are distributed in an array along the circumference of the end surface of the pressure pad 17, and the locking bolts 18 are threadedly matched with the threaded holes 20. The rotor 13 can be assembled and disassembled by tightening and disassembling the locking bolts 18.

[0029] Advantageously, the expansion ring 15 forms a trapezoidal surface 21 on both sides of the notch 16, and the inner diameter of the two end surfaces of the expansion ring 15 gradually decreases from the outside to the inside to form two wedge-shaped portions 23, and a smooth portion 22 is formed between the two wedge-shaped portions 23. The two pressure pads 17 are located on both sides of the smooth portion 22, and the two pressure pads 17 cooperate with the two wedge-shaped portions 23 respectively.

[0030] Advantageously, a plurality of rotors 13 are disposed on the mounting shaft 11, and a locking ring 14 is disposed between each rotor 13 and the mounting shaft 11. The plurality of rotors 13 are mounted side by side, and each rotor 13 has an independent locking ring 14.

[0031] Advantageously, the compression pad 17 is elastic and has a tendency to gradually reduce the notch 19; the two compression pads 17 approaching each other have a tendency to gradually increase the notch 16 of the expansion ring 15; the compression pad 17 locks the mounting shaft 11 inwardly, and the expansion ring 15 locks the rotor 13 outwardly. The compression pad 17 is not in a perfect circular shape when not subjected to force, and is installed on the mounting shaft 11 by clamping one side of the notch 19 with a tool such as a flaring pliers.

[0032] In another embodiment of the present invention, different from the above embodiment, the clamping pad 17 is elastic, and the clamping pad 17 has a tendency to gradually reduce the notch 19; the expansion ring 15 is elastic, and the expansion ring 15 has a tendency to gradually reduce the notch 16; the clamping pad 17 locks the mounting shaft 11 inward. The clamping pad 17 and the expansion ring 15 both have a tendency to shrink, but due to the existence of the mounting shaft 11, when in use, the clamping pad 17 will imprison the mounting shaft 11, and the expansion ring 15 will squeeze the clamping pad 17, so that the posture of the clamping pad 17 is stable, and the smooth part 22 of the expansion ring 15 is always between the two clamping pads 17. When the clamping pad 17 is not tightened properly due to artificial tightening, or in special circumstances such as workpiece fatigue, the expansion ring 15 will not be equivalent to the axial movement of the clamping pad 17.

[0033] Advantageously, the side of the expansion ring 15 is provided with a plurality of slide grooves 26, a sliding column 28 is slidably arranged in each of the slide grooves 26, an expansion plate 24 is fixedly arranged at one end of the plurality of sliding columns 28 which are away from each other, and a plurality of reserved grooves 27 are arranged on the outer side of the expansion ring 15, the plurality of reserved grooves 27 correspond to the plurality of sliding columns 28 one by one, and the expansion plate 24 cooperates with the reserved grooves 27. The elasticity of the expansion ring 15 reduces the friction between it and the rotor 13, and in order to prevent the rotor 13 and the expansion ring 15 from relative displacement, the expansion plate 24 is expanded outward to squeeze the inner wall of the shaft hole of the rotor 13, so that the static friction between the two is increased, and it is ensured that the rotor 13 and the locking ring 14 will not be relatively displaced.

[0034] Advantageously, a plurality of wedge-shaped protrusions 25 are respectively provided at the ends of the two pressing pads 17 that are close to each other, and the plurality of wedge-shaped protrusions 25 correspond one to one with the plurality of sliding posts 28. The wedge-shaped protrusions 25 have a guiding function, and when the two pressing pads 17 are close to each other, the sliding posts 28 are guided to slide around until the expansion plate 24 can no longer expand outward.

[0035] Advantageously, the plurality of wedge-shaped protrusions 25 have a tendency to cause the plurality of expansion plates 24 to expand outwardly in all directions to lock the rotor 13, and the expansion ring 15 has a tendency to cause the wedge-shaped portion 23 to always contact the two pressing pads 17. The wedge-shaped protrusions 25 and the wedge-shaped portion 23 are both arc-shaped wedge-shaped surfaces, and there is a straight transition portion between the wedge-shaped protrusions 25 and the pressing pads 17. The transition portion is very narrow and not numbered in the figure. When the wedge-shaped protrusions 25 completely push the expansion plates 24 out, the transition portion contacts the end of the sliding column 28. At this time, the two pressing pads 17 continue to approach or move away from each other in a small range, and the posture of the expansion plates 24 is not affected.

[0036] Working principle of the present invention:

[0037] In the initial state, the installation shaft 11 and the limit key 12 are fixed in relative positions after installation, and the cross-sections of any parts of the installation shaft 11 are the same.

[0038] During installation, first open the notch 2 19 of the clamping pad 17, install one of the clamping pads 17 at a designated position on the installation shaft 11 from one end of the installation shaft 11, align the notch 2 19 with the limit key 12, then install the expansion ring 15 to one side of the clamping pad 17, align the notch 16 with the limit key 12, and then install another clamping pad 17 on the installation shaft 11. After the three are close together, install multiple locking bolts 18 in multiple threaded holes 20 respectively;

[0039] Install the rotor 13 at a specified position on the circumferential side of the locking ring 14 from one end of the mounting shaft 11, and then tighten the locking bolt 18 to make the expansion ring 15, the clamping pad 17, the mounting shaft 11, the limit key 12 and the rotor 13 fit tightly, and the rotor 13 is not easily displaced relative to the mounting shaft 11 in the axial and circumferential directions.

[0040] In one of the embodiments, during the tightening process of the locking bolt 18, the two clamping pads 17 approach each other, and the notch 16 of the expansion ring 15 is expanded through the wedge-shaped portion 23, thereby squeezing the inner wall of the shaft hole of the rotor 13, and increasing the static friction between the two through squeezing, so that the two are not prone to axial relative displacement; the circumferential relative fixation of the installation shaft 11 and the rotor 13 is limited by the limit key 12.

[0041] In another embodiment, the expansion ring 15 is elastic, and the notch 16 of the expansion ring 15 tends to gradually shrink. However, under the action of two clamping pads 17 approaching each other, the notch 16 of the expansion ring 15 is still forced to expand; at the same time, when the two clamping pads 17 approach each other, the wedge-shaped protrusion 25 contacts the sliding column 28, and the outer side of the clamping pad 17 gradually abuts the sliding column 28 by utilizing the guiding effect of the wedge-shaped protrusion 25, so that multiple sliding columns 28 expand outward and abut the inner wall of the shaft hole of the rotor 13, thereby increasing the friction between the two to form a tight fit.

[0042] After working for a long time, the workpiece becomes fatigued, the connection accuracy of the locking bolt 18 decreases, and it may become loose. Assuming that the distance between the two clamping pads 17 increases slightly, at this time, with the trend of the notch 16 of the expansion ring 15 gradually shrinking, the wedge-shaped portions 23 on both sides continue to maintain contact with the two clamping pads 17 to prevent the expansion ring 15 from floating between the two clamping pads 17 and causing relative axial displacement of the installation shaft 11. When the distance between the two clamping pads 17 is less than the thickness of the transition portion, the transition portion of the clamping pad 17 is still in contact with the locking bolt 18, that is, the multiple expansion plates 24 in the outward expansion state are not affected by the small sliding of the clamping pad 17.

[0043] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", etc. should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] The above contents are merely examples and explanations of the structure of the present invention. The technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the invention or exceed the scope defined by the claims of the present invention, they should all fall within the protection scope of the present invention.

Claims

1. A locking ring for fixing a rotor alone, characterized in that: The invention relates to a novel locking mechanism for locking the locking cam, wherein the locking cam is provided with a locking bolt, wherein the locking cam is provided with a plurality of locking cams, wherein the locking cam is provided with a plurality of locking cams and a plurality of locking cams are provided on the locking cam. A notch 1 is provided on one side of the expansion ring, and the notch 1 cooperates with the limit key; a notch 2 is provided on one side of the pressure pad, and the notch 2 cooperates with the limit key; The inner diameters of the two end surfaces of the expansion ring gradually decrease from outside to inside to form two wedge-shaped parts, a smooth part is formed between the two wedge-shaped parts, and the two pressure pads are located on both sides of the smooth part, and the two pressure pads are respectively matched with the two wedge-shaped parts.

2. A locking ring for fixing a rotor alone according to claim 1, characterized in that: The clamping pad is provided with a plurality of threaded holes, which are distributed in an array along the circumference of the end surface of the clamping pad, and the locking bolts are threadedly matched with the threaded holes.

3. A locking ring for fixing a rotor alone according to claim 2, characterized in that: The expansion ring forms a trapezoidal surface on both sides of the notch.

4. A locking ring for independently fixing a rotor according to claim 1, characterized in that: A plurality of the rotors are arranged on the installation shaft, and a locking ring is arranged between each of the rotors and the installation shaft.

5. The locking ring for independently fixing a rotor according to claim 3, characterized in that: The clamping pad is elastic and has a tendency to gradually reduce the second notch; the two clamping pads approaching each other tend to gradually increase the first notch of the expansion ring; the clamping pad locks the mounting shaft inwardly, and the expansion ring locks the rotor outwardly.

6. A locking ring for independently fixing a rotor according to claim 3, characterized in that: The compression pad is elastic and has a tendency to gradually reduce the second notch; the expansion ring is elastic and has a tendency to gradually reduce the first notch; the compression pad locks the installation shaft inwardly.

7. A locking ring for independently fixing a rotor according to claim 6, characterized in that: The side of the expansion ring is provided with multiple sliding grooves, and a sliding column is slidably arranged in each of the sliding grooves. An expansion plate is fixedly arranged at one end of the multiple sliding columns away from each other, and the outer side of the expansion ring is provided with multiple reserved grooves, and the multiple reserved grooves correspond to the multiple sliding columns one by one, and the expansion plate cooperates with the reserved grooves.

8. A locking ring for independently fixing a rotor according to claim 7, characterized in that: A plurality of wedge-shaped protrusions are respectively arranged at the ends of the two pressing pads that are close to each other, and the plurality of wedge-shaped protrusions correspond one-to-one to the plurality of sliding columns.

9. A locking ring for independently fixing a rotor according to claim 8, characterized in that: The plurality of wedge-shaped protrusions tend to cause the plurality of expansion plates to expand outwardly in all directions to lock the rotor, and the expansion ring tends to cause the wedge-shaped portion to always contact the two pressure pads.

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