Locking ring for independently fixing rotor

Abstract

The utility model discloses a locking ring for independently fixing a rotor, which comprises an expansion ring and compression pads, the compression pads are detachably mounted on a mounting shaft, one side of the mounting shaft is provided with a limiting key, the compression pads are matched with the limiting key, two sides of the expansion ring are respectively provided with one compression pad, and the compression pads are matched with the limiting key. The two pressing pads are connected through a locking bolt, the pressing pads are located on the inner side of the expansion ring, and the expansion ring is clamped by the two pressing pads; according to the locking ring for independently fixing the rotor, the locking ring capable of synchronously locking the rotor and the shaft is additionally arranged between the mounting shaft and the rotor; the two pressing pads are oppositely and mutually locked through a plurality of locking bolts, the expansion ring expands outwards through extrusion force of the pressing pads, the expansion ring is placed in a rotor shaft hole to lock the rotor outwards, the two pressing pads lock the shaft inwards, the rotor is independently fixed, and the rotor does not move in the axial direction.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of rotor locking ring, and specifically relates to a locking ring for fixing a rotor alone. BACKGROUND

[0002] The existing rotor is mounted on a shaft, is not fixed alone in the axial direction, and is fixed by a bolt on the shaft end face. When the bolt on the shaft end face loosens, the multiple rotors on the shaft will move axially, resulting in accelerated wear of the rotor shaft hole and the shaft. CONTENT

[0003] In order to solve the above problems existing in the prior art, the utility model aims at providing a locking ring for fixing a rotor alone.

[0004] The utility model adopts the technical scheme that:

[0005] A locking ring for fixing a rotor alone, comprising an expansion ring and a compression pad, the compression pad is detachably mounted on a mounting shaft, one side of the mounting shaft is provided with a limiting key, the compression pad is matched with the limiting key, two sides of the expansion ring are respectively provided with one compression pad, the two compression pads are connected through a locking bolt, the compression pad is located on the inside of the expansion ring, and the two compression pads clamp the expansion ring; the mounting shaft is detachably provided with a rotor, the rotor is matched with the limiting key, the expansion ring is located between the rotor and the mounting shaft, the compression pad is fixed with the mounting shaft and the limiting key through friction force, the expansion ring is fixed with the rotor through friction force, and the expansion ring and the compression pad are assembled through the locking bolt; the compression pad has elasticity, and the compression pad is in a C-shaped ring shape under the condition of no force.

[0006] As a preferred embodiment of the utility model, one side of the expansion ring is provided with an opening one, the opening one is matched with the limiting key, one side of the compression pad is provided with an opening two, and the opening two is matched with the limiting key.

[0007] As a preferred embodiment of the utility model, a plurality of threaded holes are formed in the compression pad, the threaded holes are arranged along the circumferential direction of the end face of the compression pad, and the locking bolt is screwed with the threaded holes.

[0008] As a preferred embodiment of the utility model, the expansion ring is formed with a trapezoidal face on the two sides of the opening one, the inner diameter of the two end faces of the expansion ring gradually decreases from outside to inside to form two wedge-shaped parts, a smooth part is formed between the two wedge-shaped parts, the two compression pads are located on the two sides of the smooth part, and the two compression pads are matched with the two wedge-shaped parts respectively.

[0009] As the preferred of the utility model, the installation shaft is equipped with multiple rotors, and one locking ring is arranged between each rotor and the installation shaft.

[0010] As the preferred of the utility model, the compression pad has elasticity, and the compression pad has a tendency to gradually reduce the gap two; the two compression pads close to each other have a tendency to gradually increase the gap one of the expansion ring; the compression pad locks the installation shaft inward, and the expansion ring locks the rotor outward.

[0011] As the preferred of the utility model, the compression pad has elasticity, and the compression pad has a tendency to gradually reduce the gap two; the expansion ring has elasticity, and the expansion ring has a tendency to gradually reduce the gap one; and the compression pad locks the installation shaft inward.

[0012] As the preferred of the utility model, the side surface of the expansion ring is equipped with multiple sliding grooves, one sliding column is slidably arranged in each sliding groove, one expansion plate is fixedly arranged at the end of the multiple sliding columns away from each other, the outer side surface of the expansion ring is equipped with multiple reserved grooves, the multiple reserved grooves and the multiple sliding columns are one-to-one corresponding, and the expansion plate is matched with the reserved groove.

[0013] As the preferred of the utility model, the end of the two compression pads close to each other is respectively equipped with multiple wedge-shaped protrusions, and the multiple wedge-shaped protrusions and the multiple sliding columns are one-to-one corresponding.

[0014] As the preferred of the utility model, the multiple wedge-shaped protrusions have a tendency to outwardly expand the multiple expansion plates to lock the rotors, and the expansion ring has a tendency to always contact the wedge-shaped part with the two compression pads.

[0015] The utility model has the advantages that the utility model is a kind of locking ring for fixing rotor alone, and a kind of locking ring for synchronously locking rotor and shaft is additionally arranged between installation shaft and rotor;Two compression pads are locked to each other by several locking bolts, expansion ring is expanded outward by compression pad extrusion force, expansion ring is placed in rotor shaft hole and locked outwardly to rotor, two compression pads are locked inwardly to shaft, and rotor is fixed alone, and rotor shaft does not move. BRIEF DESCRIPTION OF DRAWINGS

[0016] The utility model will be further described in detail in connection with the drawings and specific implementation method.

[0017] Figure 1 It is the structure schematic diagram of the utility model;

[0018] Figure 2 It is the front view structure schematic diagram of the utility model Figure 1 .

[0019] Figure 3is the A-A direction structural schematic view of the utility model Figure 1

[0020] Figure 4 is the locking ring structural schematic view of the utility model Figure 1

[0021] Figure 5 is the explosion structural schematic view of the utility model Figure 4

[0022] Figure 6 is the another embodiment structural schematic view of the utility model Figure 4

[0023] Figure 7 is the explosion structural schematic view of the utility model Figure 6 DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantage of the utility model more clearly, the following is combined with the drawing and embodiment, and the utility model is further detailed.The specific embodiments described here are only used to explain the utility model, and are not used to limit the utility model, that is, the described embodiments are only a part of the embodiments of the utility model, and are not all the embodiments.The components of the utility model embodiments described and shown in the drawings here can be arranged and designed in various different configurations.

[0025] Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0026] The following is combined with the drawing Figures 1-7 ​​​​​The utility model discloses a specific embodiment of the utility model, in one embodiment of the utility model, a single fixed rotor locking ring, including the expansion ring 15 and the compression pad 17, the compression pad 17 can be detached and installed on the mounting shaft 11, one side of mounting shaft 11 is equipped with the limit key 12, the compression pad 17 is cooperated with limit key 12, one side of expansion ring 15 is equipped with a compression pad 17 respectively, two compression pad 17 are connected through locking bolt 18, the compression pad 17 is located the inside of expansion ring 15, two compression pad 17 clamp expansion ring 15;The rotor 13 can be detachably installed on the mounting shaft 11, the rotor 13 is cooperated with the limit key 12, the expansion ring 15 is located between the rotor 13 and the mounting shaft 11, the compression pad 17 is fixed with the mounting shaft 11 and the limit key 12 through friction force, the expansion ring 15 is fixed with the rotor 13 through friction force, the expansion ring 15 and the compression pad 17 are assembled through locking bolt 18.In the installation shaft 11 and the rotor 13 between install the locking ring 14 of the synchronous locking rotor and the axle of one kind;Two compression pad 17 are locked to each other through several locking bolt 18, and the expansion ring 15 expands outward through the extrusion force of the compression pad 17, and the expansion ring 15 is locked outward to the rotor in the rotor shaft hole, and the two compression pad 17 are locked inward to the axle, and the rotor 13 is fixed separately, and the rotor 13 does not move in the axial direction;The compression pad 17 has elasticity, and the compression pad is C-shaped annular under the condition of not being stressed, and the compression pad 17 is part of a non-circular ring under the condition, and is part of an approximate ellipse.

[0027] Beneficially, one side of the expansion ring 15 is provided with an opening 16, and the opening 16 is matched with the limit key 12. One side of the compression pad 17 is provided with an opening 19, and the opening 19 is matched with the limit key 12. The minimum size of the opening 16 and the opening 19 meets the requirement of being embedded in the limit key 12. After being embedded, the circumferential direction of the locking ring 14 and the mounting shaft 11 cannot rotate relative to each other.

[0028] Beneficially, a plurality of threaded holes 20 are arranged on the compression pad 17, and the threaded holes 20 are arranged in a circular array along the end surface of the compression pad 17. The locking bolt 18 is screwed with the threaded hole 20. The rotor 13 can be disassembled by tightening and disassembling the locking bolt 18.

[0029] Beneficially, a trapezoidal face 21 is formed on each side of the opening 16 of the expansion ring 15. The inner diameter of the end surface of the expansion ring 15 gradually decreases from outside to inside to form two wedge-shaped portions 23. A smooth portion 22 is formed between the two wedge-shaped portions 23. The two compression pads 17 are located on both sides of the smooth portion 22, and the two compression pads 17 are matched with the two wedge-shaped portions 23 respectively.

[0030] Beneficially, the mounting shaft 11 is provided with a plurality of rotors 13, and each rotor 13 and the mounting shaft 11 is provided with a locking ring 14. The plurality of rotors 13 are installed side by side, and each rotor 13 has an independent locking ring 14.

[0031] Beneficially, the compression pad 17 has elasticity, and the compression pad 17 has a tendency to gradually reduce the gap two 19; two mutually close compression pads 17 have a tendency to gradually increase the gap one 16 of the expansion ring 15; the compression pad 17 is locked inwardly to the mounting shaft 11, and the expansion ring 15 is locked outwardly to the rotor 13. The compression pad 17 is not a circular ring in the non-force state, and is installed on the mounting shaft 11 by clamping one side of the gap two 19 with a pipe bender or the like tool.

[0032] In another embodiment of the utility model, different from the above-mentioned embodiment, the compression pad 17 has elasticity, and the compression pad 17 has a tendency to gradually reduce the gap two 19; the expansion ring 15 has elasticity, and the expansion ring 15 has a tendency to gradually reduce the gap one 16; the compression pad 17 is locked inwardly to the mounting shaft 11. The compression pad 17 and the expansion ring 15 both have a tendency to narrow, but due to the existence of the mounting shaft 11, in the use state, the compression pad 17 will imprison the mounting shaft 11, and the expansion ring 15 will extrude the compression pad 17, so that the posture of the compression pad 17 is stable, and the smooth part 22 of the expansion ring 15 is always between the two compression pads 17. When the compression pad 17 is not tightened in place due to human factors, or the workpiece is fatigued, the expansion ring 15 will not move axially relative to the compression pad 17.

[0033] Beneficially, the side surface of the expansion ring 15 is provided with a plurality of sliding grooves 26, each sliding groove 26 is slidably provided with a sliding column 28, and the distal end of the plurality of sliding columns 28 is fixedly provided with an expansion plate 24. The outer side surface of the expansion ring 15 is provided with a plurality of reserved grooves 27, the plurality of reserved grooves 27 and the plurality of sliding columns 28 correspond one by one, and the expansion plate 24 is matched with the reserved groove 27. The elasticity of the expansion ring 15 leads to the reduction of friction between the expansion ring 15 and the rotor 13. In order to prevent the relative displacement of the rotor 13 and the expansion ring 15, the expansion plate 24 is used to expand outwardly to extrude the inner wall of the shaft hole of the rotor 13, so that the static friction force between the two is increased, and the relative displacement of the rotor 13 and the locking ring 14 is prevented.

[0034] Beneficially, the end of the two compression pads 17 close to each other is respectively provided with a plurality of wedge-shaped protrusions 25, and the plurality of wedge-shaped protrusions 25 correspond to the plurality of sliding columns 28 one by one. The wedge-shaped protrusion 25 has a guiding effect. When the two compression pads 17 are close to each other, the sliding column 28 is guided to slide to the periphery until the expansion plate 24 cannot continue to expand outwardly.

[0035] Beneficially, the plurality of wedge-shaped protrusions 25 have a tendency to expand the plurality of expansion plates 24 outwardly, and the expansion ring 15 has a tendency to keep the wedge-shaped portion 23 in contact with the two compression pads 17. The wedge-shaped protrusions 25 and the wedge-shaped portion 23 are both arc-shaped wedge surfaces, and there is a flat transition between the wedge-shaped protrusions 25 and the compression pads 17, which is very narrow and not labeled in the figure. When the wedge-shaped protrusions 25 completely push the expansion plates 24 out, the transition contacts the end of the sliding column 28, at which time the two compression pads 17 continue to approach or slightly move away from each other, without affecting the posture of the expansion plates 24.

[0036] The working principle of the utility model:

[0037] In the initial state, the mounting shaft 11 and the limiting key 12 are fixed relative to the position after installation, and the cross section of any part of the mounting shaft 11 is the same.

[0038] When installing, first expand the gap two 19 of the compression pad 17, install one of the compression pads 17 on the specified position of the mounting shaft 11 from one end of the mounting shaft 11, align the gap two 19 with the limiting key 12, then install the expansion ring 15 to one side of the compression pad 17, align the gap one 16 with the limiting key 12, and then install the other compression pad 17 on the mounting shaft 11, after the three are close, install the plurality of locking bolts 18 in the plurality of threaded holes 20 respectively;

[0039] Install the rotor 13 on the specified position of the locking ring 14 from one end of the mounting shaft 11, and then tighten the locking bolt 18, so that the expansion ring 15, the compression pad 17, the mounting shaft 11, the limiting key 12 and the rotor 13 are tightly matched, and the rotor 13 is not easy to relatively displace in the axial and circumferential directions of the mounting shaft 11.

[0040] In one embodiment, during the tightening of the locking bolt 18, the two compression pads 17 approach each other, the gap one 16 of the expansion ring 15 is expanded through the wedge-shaped portion 23, thereby forming extrusion on the inner wall of the shaft hole of the rotor 13, increasing the static friction between the two, so that the axial relative displacement of the two is not easy to occur; the circumferential relative fixation of the mounting shaft 11 and the rotor 13 is defined by the limiting key 12.

[0041] In another embodiment, the expansion ring 15 has elasticity, the gap one 16 of the expansion ring 15 has a tendency to gradually decrease, but under the action of the two approaching compression pads 17, the gap one 16 of the expansion ring 15 is still forced to expand; at the same time, the wedge-shaped protrusions 25 of the two compression pads 17 contact the sliding column 28 when approaching, the wedge-shaped protrusions 25 are used to guide the compression pads 17 to gradually abut against the sliding column 28, so that the plurality of sliding columns 28 expand outwardly to abut against the inner wall of the shaft hole of the rotor 13, increasing the friction between the two to form a tight fit.

[0042] When the workpiece is fatigued after long time work, the connection precision of the locking bolt 18 is reduced, and loosening can occur, and the distance between the two compression pads 17 is assumed to increase slightly, at this time, under the gradually narrowing trend of the gap 16 of the expansion ring 15, the wedge-shaped parts 23 on both sides continue to maintain contact with the two compression pads 17, avoiding the floating of the expansion ring 15 between the two compression pads 17 to generate the relative displacement of the mounting shaft 11 in the axial direction, when the distance between the two compression pads 17 away from each other is less than the thickness of the transition part, the transition part of the compression pad 17 still has the state of abutting against the locking bolt 18, that is, the plurality of outwardly expanded expansion plates 24 are not affected by the slight sliding of the compression pad 17.

[0043] In the description of the present application, it should be pointed out that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0044] The above content is only an example and description of the structure of the present application, and those skilled in the art can make various modifications or supplements or use similar ways to replace the described specific embodiments, as long as they do not deviate from the structure of the present application or exceed the scope defined by the claims of the present application, which shall belong to the protection scope of the present application.

Claims

1. A locking ring for individually securing a rotor, characterized by: The expansion ring and the compression pad are detachably mounted on the mounting shaft, one side of the mounting shaft is provided with a limiting key, the compression pad is matched with the limiting key, two sides of the expansion ring are respectively provided with one compression pad, two compression pads are connected through locking bolts, the compression pad is located at the inner side of the expansion ring, and the two compression pads clamp the expansion ring.

2. A locking ring for a single fixed rotor according to claim 1, characterized in that: One side of the expansion ring is provided with an opening one, the opening one is matched with the limiting key, one side of the compression pad is provided with an opening two, and the opening two is matched with the limiting key.

3. A locking ring for a single fixed rotor according to claim 2, characterized in that: The compression pad is provided with a plurality of threaded holes, the threaded holes are distributed along the end surface of the compression pad, and the locking bolt is matched with the threaded hole in a threaded manner.

4. A locking ring for a single fixed rotor according to claim 3, wherein: The expansion ring is formed with a trapezoidal face on both sides of the opening one, the inner diameter of the end face of the expansion ring gradually decreases from outside to inside to form two wedge-shaped parts, a smooth part is formed between the two wedge-shaped parts, the two compression pads are located on both sides of the smooth part, and the two compression pads are matched with the two wedge-shaped parts, respectively.

5. The locking ring for a single stationary rotor according to claim 1, wherein: The mounting shaft is provided with a plurality of rotors, and one limiting ring is arranged between each rotor and the mounting shaft.

6. A locking ring for a single fixed rotor according to claim 4, wherein: The compression pad has a tendency to gradually reduce the opening two; two compression pads close to each other have a tendency to gradually increase the opening one of the expansion ring; the compression pad is locked inwardly to the mounting shaft, and the expansion ring is locked outwardly to the rotor.

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