CN217381336U - Shaft fixing assembly - Google Patents

Abstract

The utility model relates to a subassembly is fixed to axle, including frame and an at least locating part, the frame has the spacing hole that supplies the axle to wear to establish, and every locating part all can be dismantled with the frame and be connected and at least some outstanding in spacing downthehole wall to every locating part butt joint axle, locating part and spacing downthehole wall and/or other locating parts enclose to close with radial restriction axle. Implement the embodiment of the utility model provides a, following beneficial effect has: the shaft fixing component fixes the shaft by matching the limiting piece with the inner wall of the limiting hole and/or other limiting pieces, so that the rotary vibration phenomenon of the shaft is reduced, and the noise generated by the rotary vibration phenomenon is reduced.

Description

Shaft fixing assembly

Technical Field

The utility model relates to a shafting technical field especially relates to a subassembly is fixed to axle.

Background

When the shaft is used as a power source, the shaft is easy to have a convolution vibration phenomenon when rotating at a high speed. The convolution vibration phenomenon is the resultant motion of a shaft system generated under the action of external force, wherein the shaft rotates around the center line of the shaft system on one hand, and simultaneously, the shaft line is in a bending state and revolves around the center line of an original balance shaft at another angular speed.

For example, a shaft which is not vertically arranged can bend under the action of gravity, so that the central axis of the shaft is actually an arc line instead of a straight line, the shaft can generate a whirling vibration phenomenon when rotating, and the more far away from the fixed end, the more obvious the whirling vibration phenomenon is.

The whirling vibration phenomenon of the rotating shaft can cause unstable rotation of the shafting to generate noise, so that the reduction of the whirling vibration phenomenon of the rotating shaft has important significance in noise management.

SUMMERY OF THE UTILITY MODEL

In view of the above, a shaft fixing assembly is needed to solve the technical problem of noise generated by the rotational vibration of the shaft in the prior art.

The utility model provides a subassembly is fixed to axle, this subassembly is fixed to axle includes: the frame is provided with a limiting hole for the shaft to penetrate through, each limiting part is detachably connected with the frame and at least partially protrudes out of the inner wall of the limiting hole, each limiting part abuts against the shaft, and the limiting parts and the inner wall of the limiting hole and/or other limiting parts are enclosed to limit the shaft in a radial direction.

Furthermore, the number of the limiting pieces is at least three, and the at least three limiting pieces radially limit the shaft.

Furthermore, the limiting part comprises a rotating part which can rotate relative to the rack, and the rotating part is abutted to the shaft.

Further, the frame includes supporting seat and apron, and the apron is connected with the supporting seat, and the apron has and surrounds the first state that forms spacing hole with the supporting seat, and the apron still has and opens spacing hole in order to form open-ended second state.

Furthermore, all be connected with a locating part on supporting seat and the apron at least.

Furthermore, at least one part of the cover plate is detachably connected with the supporting seat.

Furthermore, apron one end is rotated with the supporting seat and is connected, and the apron other end can be dismantled with the supporting seat and be connected.

Further, the frame still includes the locking piece, and the supporting seat can be dismantled with the apron via the locking piece and be connected, and the locking piece is used for apron and supporting seat locking in first state.

Furthermore, the supporting seat is provided with a limiting groove, and the cover plate can surround the opening of the limiting groove to form a limiting hole.

Furthermore, the cover plate comprises two cover plate sub-plates arranged in parallel at intervals and a cover plate middle shaft connected with the two cover plate sub-plates, and the limiting part is positioned between the two cover plate sub-plates and fixedly sleeved on the cover plate middle shaft.

Furthermore, the supporting seat comprises two supporting seat sub-plates which are arranged in parallel at intervals and a supporting seat middle shaft which is connected with the two supporting seat sub-plates, and the limiting part is positioned between the two supporting seat sub-plates and is fixedly sleeved on the supporting seat middle shaft.

Compared with the prior art, the utility model discloses a fixed subassembly of axle passes through locating part and spacing downthehole wall and/or other locating parts cooperations to be fixed axle, reduces the vibration phenomenon that circles round of axle to reduce the noise that produces because of the vibration phenomenon that circles round.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, and to implement the technical means according to the content of the description, the preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings. The detailed description of the present invention is given by the following examples and the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the invention without undue limitation to the invention. In the drawings:

fig. 1 is a front view of a first embodiment of a shaft securing assembly provided by the present invention;

fig. 2 is an elevation view of another embodiment of the shaft fixation assembly provided by the present invention;

fig. 3 is an elevation view of another embodiment of a shaft fixation assembly provided by the present invention;

fig. 4 is an elevation view of another embodiment of a shaft fixation assembly provided by the present invention;

fig. 5 is an elevation view of another embodiment of the shaft fixation assembly provided by the present invention;

fig. 6 is a side view of another embodiment of a shaft fixation assembly provided by the present invention;

FIG. 7 is a cross-sectional view of section A-A of FIG. 6;

fig. 8 is a cross-sectional view of another embodiment of a shaft fixation assembly provided by the present invention.

Detailed Description

The following detailed description of the preferred embodiments of the invention, which is to be read in connection with the accompanying drawings, forms a part of this application, and together with the embodiments of the invention, serve to explain the principles of the invention and not to limit its scope.

As shown in fig. 1 to 8, the present embodiment provides a shaft fixing assembly, which includes a frame 1 and a limiting member 2, wherein the frame 1 has a limiting hole 4 for a shaft 3 to pass through, in order to facilitate the shaft to enter the limiting hole 4, the cross-sectional area of the limiting hole 4 should be slightly larger than the limiting hole 4, since the limiting hole 4 cannot limit the shaft movement alone, the present embodiment detachably connects with the frame 1 by disposing the limiting member 2 and at least partially protrudes from the inner wall of the limiting hole 4, each limiting member 2 abuts against the shaft 3, and the limiting member 2 and the inner wall of the limiting hole 4 and/or other limiting members 2 enclose to radially limit the movement of the shaft 3, i.e. the portion of the limiting member 2 protruding from the inner wall of the limiting hole 4 abuts against the outer circumferential surface of the shaft 3, which can be engaged with the inner wall of the limiting hole 4, or a plurality of limiting members 2 are disposed to cooperate with each other to abut against a plurality of points on the outer circumferential surface of the shaft to limit the movement of the shaft 3 to further achieve the purpose of fixing the shaft 3, thereby reducing the rotational vibration of the shaft 3 and further reducing the noise generated by the rotational vibration.

Referring to fig. 1, in some embodiments, the shaft fixing assembly includes only one limiting member 2, the limiting member 2 is connected to one side of the frame and covers the upper side of the limiting hole 4, and can form a limiting region by enclosing with the inner wall of the lower side of the limiting hole 4, and press the shaft 3 penetrating through the limiting hole 4 to the bottom of the limiting hole 4, so as to reduce the rotation vibration phenomenon of the shaft 3 during rotation. It is understood that the specific shapes of the limiting member 2 and the limiting hole 4 are not limited in this embodiment, and the limiting member 2 may be rectangular, triangular, polygonal, or the like, so as to press the shaft 3 against the bottom of the limiting hole 4. The limiting hole 4 may be circular, rectangular, a combination of circular and rectangular shapes, or any other shape to cooperate with the limiting member 2 to limit the movement of the shaft.

Referring to fig. 2, in another embodiment, similar to fig. 1, the shaft fixing assembly includes only one limiting member 2, the limiting member 2 is connected to one side of the frame and shields the lower side of the limiting hole 4, and it can form a limiting area with the inner wall of the upper side of the limiting hole 4, and press the shaft 3 penetrating the limiting hole 4 to the top of the limiting hole 4, so as to reduce the rotation vibration phenomenon of the shaft 3 during rotation. Similarly, the embodiment does not limit the specific shapes of the limiting member 2 and the limiting hole 4, and the limiting member 2 may be rectangular, triangular, polygonal, or the like, so as to press the shaft 3 against the bottom of the limiting hole 4. The limiting hole 4 may be circular, rectangular, a combination of circular and rectangular shapes, or any other shape to cooperate with the limiting member 2 to limit the movement of the shaft.

Referring to fig. 3, in another embodiment, the shaft fixing assembly includes three limiting members 2, the three limiting members 2 abut against the shaft 3 to form a limiting region, in the embodiment, the inner wall of the limiting hole 4 does not participate in the formation of the limiting region, and the shaft 3 is separated from the inner wall of the limiting hole 4 when being clamped in the limiting region, so that the shaft 3 does not generate friction with the inner wall of the limiting hole 4 when rotating, and only generates friction with the limiting members 2.

It is easy to think that in other embodiments, the number of the limiting members 2 can be further increased, that is, more than three limiting members 2 are used to form a limiting area to limit the movement of the shaft 3 and separate the shaft 3 from the inner wall of the limiting hole 4.

In a preferred embodiment, the limiting member 2 comprises a rotary part which is rotatable relative to the frame 1, the rotary part abutting the shaft 3. The shaft 3 generates rolling friction with the limiting part 2 when rotating, and the generated friction loss is greatly reduced compared with the friction loss generated by adopting the fixing part on the inner wall of the limiting part 2 or the limiting hole 4. In some embodiments, the limiting member 2 is only partially rotatable with respect to the frame 1, i.e. comprises a rotating portion and a fixed portion, the fixed portion is fixedly connected to the frame 1, the rotating portion is rotatably connected to the fixed portion and is also in abutment with the shaft 3, and relative rotation occurs between the rotating portion and the fixed portion. For example, the limiting member 2 may be a bearing, and the fixing portion is an inner ring of the bearing and is fixedly connected to the connecting shaft on the frame 1; the rotary part is an outer ring of the bearing and abuts against the shaft 3. In other embodiments, the limiting member 2 may also rotate integrally relative to the frame 1, that is, the limiting member 2 is a rotating portion integrally and is rotatably connected to the frame 1. For example, the position limiting member 2 may be a roller, and is rotatably sleeved on the connecting shaft of the frame 1 and abuts against the shaft 3.

Referring to fig. 4, in another embodiment, the frame 1 includes a supporting base 11 and a cover plate 12, the cover plate 12 is connected to the supporting base 11 and has a first state surrounding the supporting base 11 to form a limiting hole 4 and a second state opening the limiting hole 4 to form an opening, the shaft 3 is fixed in the first state, and the opening is formed in the second state, so that the shaft 3 can be conveniently taken and placed through the opening. In particular, when an upper shaft member is connected to the shaft 3 to prevent the shaft 3 from being drawn out of the stopper hole 4, the shaft 3 can be taken out through the opening without detaching the upper shaft member.

In this embodiment, the shaft fixing component includes two limiting parts 2, the supporting seat 11 and the cover plate 12 are respectively connected with one limiting part 2, and the two limiting parts 2 are matched to press the shaft 3 on the inner wall of the limiting hole 4, so as to fix the shaft 3 and reduce the vibration effect when the shaft 3 rotates. And make it change into the second state from the first state through removing apron 12, can drive the locating part 2 of connection on apron 12 in step and remove to destroy two locating parts 2 and the common fixed effect to axle 3 of spacing hole 4 inner wall, make axle 3 be in detachable state, can follow this axle fixed subassembly and take off.

In some embodiments of the present application, the cover plate 12 may be detachably connected to the support base 11. The limit hole 4 is surrounded by the mounting cover plate 12 and the limit hole 4 is opened by detaching the cover plate 12, so that the support seat 11 is switched between the first state and the second state.

In other embodiments of the present application, at least a portion of the cover plate 12 is detachably connected to the supporting seat 11, so long as the portion of the cover plate 12 connected to the supporting seat 11 can surround the limiting hole 4; after the support base 11 is detached, the limiting hole 4 can be opened. So that the functions of the first state and the second state are realized by the detachable connection of the partial structure of the cover plate 12 and the support seat 11.

Preferably, in some embodiments, one end of the cover plate 12 is rotatably connected to the supporting seat 11, and the other end thereof is detachably connected to the supporting seat 11. And the one end of rotating the connection and the one end of can dismantling the connection are located the both sides of spacing hole 4 respectively, can dismantle the link like this and dismantle the back, only need upset apron 12 can change apron 12 from the first state into the second state, open spacing hole 4 and get and put axle 3.

Referring to fig. 5 to 7, in another embodiment, the supporting seat 11 plays a bearing role in the shaft fixing assembly, so that a limiting groove for accommodating the shaft 3 is formed on the supporting seat 11. In other embodiments, the supporting seat 11 and the cover plate 12 may have groove structures, and the openings of the two groove structures surround oppositely to form a limiting groove for accommodating the shaft 3.

In this embodiment, the supporting seat 11 includes two supporting seat sub-plates 111 arranged in parallel and spaced apart, a supporting seat central axis 112 connecting the two supporting seat sub-plates 111, and a bottom plate 113 fixedly connecting the two supporting seat sub-plates 111. Two supporting seat branch boards 111 all are formed with the recess in the same position, and these two recesses can be the U type, have constituteed the spacing groove of supporting seat 11 jointly. The support base central shaft 112 is arranged around the limiting groove. The base plate 113 is used to attach the present shaft attachment assembly to another device and is therefore suitably formed with threaded holes, attachment holes or other structures.

The cover plate 12 is movably connected with the supporting seat 11 and used for opening or closing the opening of the limiting groove so as to realize the conversion between the first state and the second state, thereby being convenient for assembling and disassembling the shaft 3. In the present embodiment, the cover plate 12 includes two cover plate sub-plates 121 arranged in parallel and spaced apart, and a cover plate central axis 122 connecting the two cover plate sub-plates 121. In this embodiment, two cover plate segments 121 are inserted between two support seat segments 111. In other embodiments of the present application, a portion of the two support seat sub-plates 111 may be inserted between the two cover plate sub-plates 121.

The frame 1 further comprises a locking piece 13, and the locking piece 13 is detachably connected with the supporting seat 11 and the cover plate 12 and used for locking the cover plate 12 in a first state.

In this embodiment, the locking member 13 is a bolt. And the overlapping position of the supporting seat sub-plate 111 and the cover sub-plate 121 is provided with a connecting jack, that is, a first connecting hole 1111 is formed on the supporting seat sub-plate 111, and a second connecting hole 1211 is formed on the cover sub-plate 121. When the cover 12 and the supporting base 11 are in the locked position, the first connecting hole 1111 faces the second connecting hole 1211, and the locking member 13 can be inserted into the first connecting hole 1111 and the second connecting hole 1211 at the same time to achieve the locking function.

In other embodiments of the present application, the supporting seat central axis 112 and the cover central axis 122 may also be circular pins, that is, the circular pins are inserted into the two supporting seat sub-plates 111 or the two cover sub-plates 121, and the limiting member 2 is sleeved on the circular pins, so that the limiting member 2 can be conveniently mounted or dismounted.

In this embodiment, the frame 1 further includes a rotating shaft 14, and the cover plate 12 is rotatably connected to the supporting base 11 through the rotating shaft 14. Preferably, the rotating shaft 14 and the locking member 13 are respectively disposed at two sides of the limiting hole 4, and an axis of the rotating shaft 14 is parallel to a central axis of the limiting hole 4. After the locking piece 13 is pulled out, the cover plate 12 can be turned upwards to the second state around the rotating shaft 14, so that the limiting hole 4 is opened, and the shaft 3 can be conveniently taken and placed. When the shaft 3 is mounted, the cover plate 12 is then rotated back to the first position, and the locking element 13 is inserted to achieve locking.

In other embodiments of the present application, the rotating shaft 14 may also be a circular pin, the rotating shaft 14 is inserted into the supporting seat sub-plate 111 and the cover sub-plate 121, and at least one of the supporting seat sub-plate 111 and the cover sub-plate 121 can rotate around the rotating shaft 14, so as to surround or open the limiting hole 4.

The limiting piece 2 is arranged around the limiting hole 4 and is fixedly connected with the machine frame 1. In order to facilitate the installation and disassembly of the shaft fixing assembly on the shaft 3, preferably, part of the limiting member 2 is disposed on the supporting seat 11, part of the limiting member 2 is disposed on the cover plate 12, and at least one limiting member 2 is disposed on the supporting seat 11 and the cover plate 12.

In the present embodiment, all three position-limiting members 2 partially extend to protrude from the inner wall of the position-limiting hole 4 and form three position-limiting points circumferentially arranged along the central axis of the position-limiting hole 4. These three limit points are used for abutting and fixing with the shaft 3, reduce the whirling vibration of the shaft 3 when rotatory. And a gap can be formed between the shaft 3 and the inner wall of the limiting hole 4, so that the shaft 3 does not generate friction with the inner wall of the limiting hole 4 when rotating. In order to further reduce the friction between the shaft 3 and the limiting member 2 when rotating, the limiting member 2 is preferably a rotating member capable of rotating relative to the frame 1, so that rolling friction is formed between the shaft 3 and the limiting member 2. The limiting members 2 may be selected from rotating wheels or bearings, and the axes of all the limiting members 2 are parallel to the axis of the shaft 3. Thus, the shaft 3 and the outer peripheral surface of the stopper 2 are in line contact, not point contact, and the contact is more stable and reliable.

In some embodiments of the present application, the position-limiting element 2 disposed on the supporting seat 11 is a bearing, the position-limiting element 2 is located between the two supporting seat sub-plates 111, and an inner ring of the position-limiting element is fixedly sleeved on the supporting seat central shaft 112, and an outer ring of the position-limiting element abuts against the shaft 3.

In some embodiments of the present application, the position-limiting element 2 disposed on the cover plate 12 is a bearing, the position-limiting element 2 is located between the two cover plate sub-plates 121, and an inner ring thereof is fixedly sleeved on the cover plate central axis 122, and an outer ring thereof abuts against the shaft 3.

In this embodiment, all the position-limiting members 2 are bearings, and are respectively fixed and sleeved on the supporting seat central axis 112 and the cover plate central axis 122. When the cover plate 12 is in the first state, the outer peripheral surfaces of all the limiting members 2 are simultaneously abutted against the outer peripheral surface of the shaft 3, and are mutually matched to clamp the shaft 3, so that the rotary vibration phenomenon of the shaft 3 during rotation is reduced.

In this embodiment, two limiting members 2 are disposed on the supporting seat 11, one limiting member 2 is disposed on the cover plate 12, and the three limiting members 2 surround to form a triangle. The two limiting members 2 located below are used for bearing the shaft 3, and when the cover plate 12 is in the first state, the limiting members 2 located above can press the shaft 3 against the other two limiting members 2 to fix the shaft 3. The cover plate 12 is rotated to the second state, the limiting member 2 above the shaft 3 is separated from the shaft 3, the fixing of the limiting member 2 to the shaft 3 disappears, and the shaft 3 is in a state of being taken out of the limiting hole 4.

In another embodiment of the present application, as shown in fig. 8, there are four retaining members 2, three of which are disposed on the supporting base 11, and the remaining one is disposed on the cover plate 12, in the arrangement shown in the figure. One limiting part 2 located below is used for bearing a shaft 3, the two limiting parts 2 located on two sides limit the shaft 3 on two sides, and the limiting part 2 located above can tightly press the shaft 3.

In other embodiments, the number of the limiting members 2 may be further increased, as long as the limiting points formed by the limiting members 2 are circumferentially arranged along the central axis of the shaft 3, and can be abutted and fixed with the shaft 3. And preferably, only the supporting seat 11 or only the limiting member 2 on the cover plate 12 cannot fix the shaft 3, and the supporting seat 11 and the limiting member 2 on the cover plate 12 must be matched with each other to clamp the fixing shaft 3, so that the shaft fixing assembly can be conveniently assembled and disassembled on the shaft 3 by moving the cover plate 12.

When the shaft fixing component is used, the locking piece 13 is taken down firstly, namely the bolt is pulled out, the cover plate 12 is turned over, and the shaft 3 is arranged in the limiting groove. Cover plate 12 is covered and locking piece 13 is installed, and plug is plugged. The shaft 3 is clamped tightly by the limiting part 2, and the installation is completed. After the operation is finished, the bolt is pulled out, the cover plate 12 is opened, and the shaft 3 can be conveniently taken out.

Implement the embodiment of the utility model provides a, following beneficial effect has: the shaft fixing component fixes the shaft by matching the limiting piece with the inner wall of the limiting hole and/or other limiting pieces, so that the rotary vibration phenomenon of the shaft is reduced, and the noise generated by the rotary vibration phenomenon is reduced.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention.

Claims (10)

1. An axle fixing assembly, comprising: the shaft limiting device comprises a rack (1) and at least one limiting piece (2), wherein the rack (1) is provided with a limiting hole (4) for a shaft (3) to penetrate through, each limiting piece (2) is detachably connected with the rack (1) and at least partially protrudes out of the inner wall of the limiting hole (4), each limiting piece (2) abuts against the shaft (3), and the limiting pieces (2) and the inner wall of the limiting hole (4) and/or other limiting pieces (2) are enclosed to radially limit the shaft (3).

2. The shaft fixing assembly according to claim 1, characterized in that the number of said limiters (2) is at least three, and at least three of said limiters (2) radially limit the shaft (3).

3. The shaft securing assembly according to claim 1, characterized in that the retainer (2) comprises a swivel part which is rotatable relative to the machine frame (1), the swivel part abutting the shaft (3).

4. The shaft fixing assembly according to claim 1, characterized in that the machine frame (1) comprises a support seat (11) and a cover plate (12), the cover plate (12) is connected with the support seat (11), the cover plate (12) has a first state surrounding the support seat (11) to form the limiting hole (4), and the cover plate (12) also has a second state opening the limiting hole (4) to form an opening.

5. The shaft fixing assembly according to claim 4, characterized in that at least one stop element (2) is connected to each of the support base (11) and the cover plate (12).

6. A shaft fixation assembly according to claim 4, characterized in that at least a part of the cover plate (12) is detachably connected to the support seat (11).

7. The shaft fixing assembly according to claim 6, characterized in that one end of the cover plate (12) is rotatably connected with the support base (11), and the other end of the cover plate (12) is detachably connected with the support base (11).

8. Shaft fixing assembly according to claim 6, characterized in that the machine frame (1) further comprises a locking member (13), the support seat (11) and the cover plate (12) being detachably connected via the locking member (13), the locking member (13) being provided for locking the cover plate (12) and the support seat (11) in the first state.

9. The shaft fixing assembly according to claim 4, characterized in that the support seat (11) is formed with a limiting groove, and the cover plate (12) can surround the opening of the limiting groove to form the limiting hole (4).

10. The shaft fixing assembly according to claim 4, wherein the cover plate (12) comprises two cover plate sub-plates (121) arranged in parallel and spaced apart, and a cover plate central shaft (122) connecting the two cover plate sub-plates (121), and the retainer (2) is located between the two cover plate sub-plates (121) and is fixedly sleeved on the cover plate central shaft (122); the supporting seat (11) comprises two supporting seat sub-plates (111) which are arranged in parallel at intervals and a supporting seat middle shaft (112) which is used for connecting the two supporting seat sub-plates (111), and the limiting piece (2) is positioned between the two supporting seat sub-plates (111) and is fixedly sleeved on the supporting seat middle shaft (112).

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