阅读说明：本技术 一种轴向偏心防松固定结构 (Axial eccentric anti-loosening fixing structure ) 是由 黄文博 聂敏 王梦蝶 于 2019-12-05 设计创作，主要内容包括：本发明公开了一种轴向偏心防松固定结构,包括转子、内腔和偏心盖,所述转子的内部通过花键结构安装有轴件,所述轴件的一端焊接有轴杆,所述轴杆的内部设有螺纹孔,所述轴件的内部设有所述内腔,所述内腔的内部设有卡槽,所述轴件的内部通过螺纹孔固定安装有螺栓,所述螺栓的一端焊接有螺头,所述螺头的底部安装有偏心盖,所述转子与轴端面通过偏心盖和螺栓定位锁紧。本发明通过在螺栓和轴件的偏心设计的配合可使向心力中心点偏移,螺栓与转子所受向心力不一致,螺栓随着转子的高速旋转拧紧,避免了螺栓的松动,减小转子定位失效产生故障,降低装置的检修效率,延长了装置的使用寿命,提高了装置的实用性。(The invention discloses an axial eccentric anti-loosening fixing structure which comprises a rotor, an inner cavity and an eccentric cover, wherein a shaft part is arranged inside the rotor through a spline structure, a shaft rod is welded at one end of the shaft part, a threaded hole is formed inside the shaft rod, the inner cavity is formed inside the shaft part, a clamping groove is formed inside the inner cavity, a bolt is fixedly arranged inside the shaft part through the threaded hole, a screw head is welded at one end of the bolt, the eccentric cover is arranged at the bottom of the screw head, and the rotor and the end face of the shaft are positioned and locked through the eccentric cover and the bolt. According to the invention, the centripetal force central point can be deviated through the matching of the eccentric design of the bolt and the shaft member, the centripetal force applied to the bolt and the rotor is inconsistent, and the bolt is screwed up along with the high-speed rotation of the rotor, so that the looseness of the bolt is avoided, the fault caused by the positioning failure of the rotor is reduced, the overhauling efficiency of the device is reduced, the service life of the device is prolonged, and the practicability of the device is improved.)

1. The utility model provides an axial eccentric locking fixed knot construct which characterized in that: comprises a rotor (1), an inner cavity (3) and an eccentric cover (6), wherein a shaft part (2) is arranged in the rotor (1) through a spline structure (102), one end of the shaft piece (2) is welded with a shaft lever (201), a threaded hole (202) is arranged inside the shaft lever (201), one end of the shaft lever (201) departing from the shaft element (2) is provided with a shaft end surface (203), the inner cavity (3) is arranged in the shaft piece (2), a clamping groove (301) is arranged in the inner cavity (3), a threaded cavity (302) is arranged at one side of the clamping groove (301), a bolt (5) is fixedly arranged in the shaft piece (2) through a threaded hole (202), a screw head (4) is welded at one end of the bolt (5), an eccentric cover (6) is installed at the bottom of the screw head (4), the rotor (1) and the shaft end face (203) are positioned and locked through the eccentric cover (6) and the bolt (5).

2. The axial eccentric anti-loose fixing structure according to claim 1, characterized in that: the inside of eccentric lid (6) is equipped with inclined plane groove (601), the below of inclined plane groove (601) is equipped with thread groove (603), just the bottom of eccentric lid (6) is equipped with spacing groove (602).

3. The axial eccentric anti-loose fixing structure according to claim 1, characterized in that: the internal mounting of spiral shell head (4) has nut (401), the bottom welding of nut (401) has spacing pad (402), the inside of spacing pad (402) is equipped with butterfly groove (403).

4. The axial eccentric anti-loose fixing structure according to claim 1, characterized in that: the bolt is characterized in that an inclined plane bolt (501) is mounted inside the bolt (5), a threaded rod (502) is welded to the bottom of the inclined plane bolt (501), and a guide rod (503) is welded to the bottom of the threaded rod (502).

5. The axial eccentric anti-loose fixing structure according to claim 1, characterized in that: the outer side of the rotor (1) is provided with a spiral piece (101), and the inside of the rotor (1) is provided with the spline structure (102).

Technical Field

The invention relates to the technical field of pumps, in particular to an axial eccentric anti-loosening fixing structure.

Background

In the structural design of the pump, the end faces of the rotating parts such as the rotor or the impeller and the rotating shaft are usually locked by threads, the threads are likely to loosen in the long-time running process, and an eccentric anti-loosening fixing mode is needed to solve the problem and ensure the correct axial displacement of the rotating parts.

The existing axial eccentric anti-loose fixing structure has the following defects:

1. the circumferential rotation generates centripetal force, and the screw head may be loosened in the rotation process, so that the positioning failure of the rotor is caused to generate faults;

2. the thread may loosen during long-term operation, and needs to be stopped and checked.

Therefore, an axial eccentric anti-loosening fixing structure is provided to solve the existing problems.

Disclosure of Invention

The invention aims to provide an axial eccentric anti-loose fixing structure to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an axial eccentric locking fixed knot construct, includes rotor, inner chamber and eccentric lid, the axle piece is installed through spline structure in the inside of rotor, the one end welding of axle piece has the axostylus axostyle, the inside of axostylus axostyle is equipped with the screw hole, the axostylus axostyle deviates from the one end of axle piece is equipped with the axle head face, the inside of axle piece is equipped with the inner chamber, the inside of inner chamber is equipped with the draw-in groove, one side of draw-in groove is equipped with the screw thread chamber, the inside of axle piece has the bolt through screw hole fixed mounting, the one end welding of bolt has the spiral shell head, the eccentric lid is installed to the bottom of.

Preferably, the inside of the eccentric cover is provided with an inclined plane groove, a thread groove is arranged below the inclined plane groove, and the bottom of the eccentric cover is provided with a limit groove.

Preferably, the nut is installed inside the screw head, a limiting pad is welded at the bottom of the nut, and a butterfly groove is formed inside the limiting pad.

Preferably, the internally mounted of bolt has the inclined plane to tie, the bottom welding of inclined plane bolt has the threaded rod, the bottom welding of threaded rod has the guide bar.

Preferably, the outer side of the rotor is provided with a spiral piece, and the inside of the rotor is provided with the spline structure.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the centripetal force central point can be deviated through the matching of the eccentric design of the bolt and the shaft member, the centripetal force applied to the bolt and the rotor is inconsistent, and the bolt is screwed up along with the high-speed rotation of the rotor, so that the looseness of the bolt is avoided, the fault caused by the positioning failure of the rotor is reduced, the overhauling efficiency of the device is reduced, the service life of the device is prolonged, and the practicability of the device is improved.

2. The invention can ensure that the part has a determined axial position on the shaft part by positioning and locking the rotor and the shaft end surface through the eccentric cover and the bolt, prevent the part from doing axial motion, prevent the part from loosening in long-time operation and ensure the stability of the rotor rotation.

3. According to the invention, the inclined plane bolt is arranged at the top of the threaded rod, and the position of the bolt can be tightly fixed through the matching of the inclined plane bolt and the inclined plane groove, so that the inclined plane bolt of the bolt is tightly propped against the inclined plane groove of the eccentric cover, thereby generating a large locking force, preventing the eccentric cover from loosening and ensuring the connection firmness of the device.

4. The invention arranges the spiral part on the surface of the rotor, when the rotor rotates, the spiral part can rotate along with the rotation of the rotor, and the spiral part can improve the eccentric force generated by the rotor, so that the parts in the rotor can deviate towards the central point of the centripetal force.

Drawings

FIG. 1 is a schematic cross-sectional view of the present invention;

FIG. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view of the construction of the bolt of the present invention;

FIG. 4 is a schematic structural view of the eccentric cover of the present invention.

In the figure: 1. a rotor; 101. a screw; 102. a spline structure; 2. a shaft member; 201. a shaft lever; 202. a threaded hole; 203. a shaft end face; 3. an inner cavity; 301. a card slot; 302. a threaded cavity; 4. a screw head; 401. a nut; 402. a limiting pad; 403. a butterfly groove; 5. a bolt; 501. an inclined plane bolt; 502. a threaded rod; 503. a guide bar; 6. an eccentric cover; 601. an inclined plane groove; 602. a limiting groove; 603. a thread groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-4, an embodiment of the present invention is shown: an axial eccentric anti-loose fixing structure comprises a rotor 1, an inner cavity 3 and an eccentric cover 6, wherein a shaft part 2 is installed inside the rotor 1 through a spline structure 102, the shaft part 2 drives the rotor 1 to run at a high speed, the rotor 1 and a shaft end face 203 are positioned and locked through the eccentric cover 6 and a bolt 5, a shaft rod 201 is welded at one end of the shaft part 2, the eccentric design of the shaft rod 201 is matched to enable a centripetal force central point to deviate, the bolt 5 is inconsistent with the centripetal force applied to the rotor 1, the bolt 5 is screwed down along with the high-speed rotation of the rotor 1, the looseness of the bolt 5 is avoided, the fault caused by the positioning failure of the rotor 1 is reduced, the maintenance efficiency of the device is reduced, the service life of the device is prolonged, the practicability of the device is improved, a threaded hole 202 is formed inside the shaft rod 201, the threaded hole 202 can provide an installation position for the bolt 5, the installation of, the inner cavity 3 is arranged in the shaft part 2, the clamping groove 301 is arranged in the inner cavity 3, the thread cavity 302 is arranged on one side of the clamping groove 301, the clamping groove 301 and the thread cavity 302 are matched with the spline structure 102 in the rotor 1, the connection firmness of the device can be improved, the bolt 5 is fixedly arranged in the shaft part 2 through the thread hole 202, the eccentric design matching of the bolt 5 can enable the centripetal force central point to deviate, the centripetal force borne by the bolt 5 and the rotor 1 is inconsistent, the bolt 5 is tightened along with the high-speed rotation of the rotor 1, the loosening of the bolt 5 is avoided, the fault caused by the positioning failure of the rotor 1 is reduced, the maintenance efficiency of the device is reduced, the service life of the device is prolonged, the practicability of the device is improved, the screw head 4 is welded at one end of the bolt 5, the position of the eccentric cover 6 can be further limited through the screw head 4, the installation stability of the eccentric cover 6 is ensured, the eccentric cover, the eccentric cover 6 can be screwed down with the bolt 5 along with the high-speed rotation of the rotor 1, so that the looseness of the bolt 5 is avoided, the fault caused by the positioning failure of the rotor 1 is reduced, the maintenance efficiency of the device is reduced, and the rotor 1 and the shaft end face 203 are positioned and locked through the eccentric cover 6 and the bolt 5.

Further, the inside of eccentric cover 6 is equipped with inclined plane groove 601, inclined plane groove 601 can with the inclined plane bolt 501 cooperation can be tight the position of fixing bolt 5, the inclined plane bolt 501 of bolt 5 just tightly pushes up on the inclined plane groove 601 of eccentric cover 6, thereby produce very big locking force, it is not hard up to prevent that eccentric cover 6 from taking place, the fastness of device connection has been guaranteed, the below of inclined plane groove 601 is equipped with thread groove 603, thread groove 603 can with the cooperation of threaded rod 502 can be with the tight fixing on the axle terminal surface 203 of eccentric cover 6, and the bottom of eccentric cover 6 is equipped with spacing groove 602, the fastness of installation of multiplicable eccentric cover 6 through spacing groove 602.

Further, the internally mounted of spiral shell head 4 has nut 401, and nut 401 can be convenient for turn round bolt 5, has improved the efficiency of bolt 5 installation, and the bottom welding of spacing pad 402 has spacing pad 402, and spacing pad 402 prevents that nut 401 from taking place not hard up through the stability of the installation of the butterfly groove 403 of bottom multiplicable nut 401, and the inside of spacing pad 402 is equipped with butterfly groove 403, and the stability of the installation of the multiplicable nut 401 of butterfly groove 403 prevents that nut 401 from taking place not hard up.

Further, the internally mounted of bolt 5 has inclined plane bolt 501, the position of fixing bolt 5 that can be tight through the cooperation of inclined plane bolt 501 and inclined plane groove 601, inclined plane bolt 501 of bolt 5 just tightly pushes up on inclined plane groove 601 of eccentric lid 6, thereby produce very big locking force, prevent that eccentric lid 6 from taking place not hard up, the fastness of device connection has been guaranteed, the bottom welding of inclined plane bolt 501 has threaded rod 502, threaded rod 502 can be with the cooperation of thread groove 603 tightly fix eccentric lid 6 on axial end face 203, the bottom welding of threaded rod 502 has guide bar 503, bolt 5 installation of can being convenient for through guide bar 503, be convenient for bolt 5 fixes a position fast, the efficiency of bolt 5 installation has been improved.

Further, the screw 101 is disposed on the outer side of the rotor 1, and by disposing the screw 101 on the surface of the rotor 1, when the rotor 1 rotates, the screw 101 may rotate along with the rotation of the rotor 1, and the screw 101 may improve the eccentric force generated by the rotor 1, so as to shift the internal part toward the central point of the centrifugal force, and the spline structure 102 is disposed inside the rotor 1, and the shaft 2 may be mounted through the spline structure 102, thereby increasing the firmness of connection.

The working principle is as follows: before the device is used, a user firstly detects the device and confirms that the device is used after no problem exists, the central point of the centripetal force can be deviated due to the matching of the eccentric design of the bolt 5 and the rotor 1, the centripetal force borne by the bolt 5 and the rotor 1 is inconsistent, the bolt 5 is tightened along with the high-speed rotation of the rotor 1, the loosening of the bolt 5 is avoided, the fault caused by the positioning failure of the rotor 1 is reduced, the maintenance efficiency of the device is reduced, the service life of the device is prolonged, the practicability of the device is improved, the determined axial position of a part on the shaft part 2 can be ensured through the positioning and locking of the eccentric cover 6 and the bolt 5 between the rotor 1 and the shaft end surface 203, the part is prevented from moving axially, the loosening of the part in long-time operation is prevented, the rotating stability of the rotor 1 is ensured, the position of the bolt 5 can be tightly fixed through the matching of the inclined plane bolt 501 and the inclined plane groove 601, the inclined plane 501 of the bolt 5 tightly props against, thereby generating great locking force, preventing the eccentric cover 6 from loosening and ensuring the firmness of the connection of the device.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.