CN218206981U

CN218206981U - Balance wheel structure

Info

Publication number: CN218206981U
Application number: CN202222347231.2U
Authority: CN
Inventors: 赵孝凯
Original assignee: Hefei Yuanzhong Electromechanical Co ltd
Current assignee: Hefei Yuanzhong Electromechanical Co ltd
Priority date: 2022-09-01
Filing date: 2022-09-01
Publication date: 2023-01-03
Anticipated expiration: 2032-09-01

Abstract

The utility model discloses a balance wheel structure, which comprises a balance wheel, wherein a bearing is arranged in the balance wheel, a rotating shaft which is fixedly connected is arranged in the bearing, and a snap spring is arranged on one side of the bearing; the balance wheel comprises a bearing seat, a through round hole is formed in one side of the bearing seat, a limit stop block fixedly connected is arranged on the outer side of the round hole, a glue groove is formed in the bearing seat, and a clamp spring groove fixedly connected is formed in the other side of the bearing seat; and an eccentric shaft fixedly connected with the outer side of the rotating shaft is arranged, and the eccentric shaft and the rotating shaft are integrally formed. The utility model discloses be equipped with respectively in the both sides of bearing and block stopper and jump ring groove, carry out the spacing fixed of axial to the bearing, be equipped with the glue groove in the bearing frame, glue can strengthen fixedly to the inner wall of bearing frame and the excircle of bearing to the eccentric shaft adopts integrated into one piece's technology with the pivot, and simple structure has solved balance and bearing completely and can take place the quality hidden danger of displacement in the axial.

Description

Balance wheel structure

Technical Field

The utility model belongs to the technical field of diesel engine exhaust emission processing system, concretely relates to balance structure.

Background

The tail gas treatment device of the diesel engine is a device which purifies the tail gas discharged by a truck under the action of a catalyst so as to reduce the pollution to the environment. The structure of a pump motor balance wheel used by a diesel engine tail gas treatment device is basically assembled and combined by a balance wheel assembly (consisting of a balance wheel and a bearing) and an eccentric shaft assembly with an eccentric amount on the market. The eccentric shaft is driven by the motor to rotate to drive the balance wheel assembly to reciprocate up and down in the radial direction, and the balance wheel assembly drives the piston to move, so that pressure is built in the pump cavity. In the process of reciprocating motion of the balance wheel, radial force is generated between the balance wheel and the bearing, the matching surface between the inner circle of the balance wheel and the outer diameter of the bearing is machined and molded at any time, the inner circle has inevitable taper, so axial force exists in the axial direction, meanwhile, because the diesel engine is used in a severe environment, a pump motor is used as a main component of a tail gas treatment device of the diesel engine and is influenced by high temperature, high humidity, dust and jolt, and the balance wheel is in a falling risk in the process of being driven by factors such as long-time forced operation of a balance wheel assembly and the like.

The balance wheel structure of the existing diesel engine exhaust gas treatment device is shown in fig. 5 and 6, a bearing is arranged in the inner circle of the balance wheel, the outer circle of the bearing is in transition or interference fit with the inner diameter of the balance wheel, the structure lacks the limit on the axial direction of the bearing, and the risk that the balance wheel falls off is further increased.

SUMMERY OF THE UTILITY MODEL

To the deficiency of the prior art, an object of the present invention is to provide a balance structure to solve the problems presented in the above background art.

The purpose of the utility model can be realized by the following technical scheme:

a balance wheel structure comprises a balance wheel, wherein a bearing is arranged inside the balance wheel, a rotating shaft is fixedly connected inside the bearing, and a clamp spring is arranged on one side of the bearing;

the balance wheel comprises a bearing seat, wherein one side of the bearing seat is provided with a limit stop which is fixedly connected and axially limited, the limit stop is provided with a through round hole, an annular glue groove is arranged inside the bearing seat, and the other side of the bearing seat is provided with a clamp spring groove which is fixedly connected;

and an eccentric shaft fixedly connected with the outer side of the rotating shaft is arranged, and the eccentric shaft and the rotating shaft are integrally formed.

Furthermore, the distance between the rotating shaft and the center of the eccentric shaft is 0.45mm-0.6mm.

Furthermore, the bearing seat is fixedly matched with the outer circle of the bearing, and the limit stop is used for axially limiting and fixing one side of the outer circle of the bearing.

Furthermore, anaerobic glue is arranged inside the glue groove, and the glue in the glue groove strengthens and fixes the bearing seat and the outer circle of the bearing.

Furthermore, the clamp spring is clamped in the clamp spring groove, and the other side of the excircle of the bearing is axially limited and fixed.

Furthermore, the outer circle of the eccentric shaft is fixedly matched with the inner side of the inner circle of the bearing.

The utility model has the advantages that:

1. the utility model relates to a balance structure is equipped with respectively in the both sides of bearing and blocks stopper and jump ring groove, carries out the spacing fixed of axial to the bearing, is equipped with the glue groove in the bearing frame, and glue can be fixed the inner wall of bearing frame and the excircle of bearing to the eccentric shaft adopts integrated into one piece's technology with the pivot, and simple structure solves balance and bearing completely and can take place the quality hidden danger of displacement in the axial.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the balance wheel structure of the present invention;

fig. 2 is a partial structure schematic diagram of the balance wheel structure of the present invention;

fig. 3 isbase:Sub>A schematic cross-sectional view ofbase:Sub>A portionbase:Sub>A-base:Sub>A of the balance structure of fig. 2 according to the present invention;

fig. 4 is a partial structure schematic diagram of the balance wheel structure of the present invention;

fig. 5 is a schematic view of a prior art balance structure;

fig. 6 isbase:Sub>A schematic sectional view of the portionbase:Sub>A-base:Sub>A of fig. 5.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, the balance wheel structure includes a balance wheel 1, a bearing 2 is arranged inside the balance wheel 1, an outer circle 21 of the bearing 2 is fixedly connected with the balance wheel 1, a rotating shaft 3 is fixedly connected inside the bearing 2, and a snap spring 4 is arranged on one side of the bearing 2.

As shown in fig. 2 and 3, the inside of balance 1 is equipped with bearing frame 11, the outside fixed connection of bearing frame 11 and excircle 21, one side of bearing frame 11 is equipped with the round hole 12 that link up, and the outside of round hole 12 is equipped with fixed connection's limit stop 13, and limit stop 13 carries out axial positioning and spacing to one side of bearing 2, the inside of bearing frame 11 is equipped with glue groove 14, and glue groove 14's inside is equipped with glue, and after the assembly, glue in the glue groove 14 strengthens fixedly bearing frame 11 and bearing 2's excircle 21, the opposite side of bearing frame 11 is equipped with fixed connection's jump ring groove 15, and jump ring 4 blocks into jump ring groove 15 in, fixes bearing 2.

As shown in fig. 1 and 4, an eccentric shaft 31 is fixedly connected to the outer side of the rotating shaft 3, the eccentric shaft 31 is integrally formed with the rotating shaft 3, the outer side of the eccentric shaft 31 is fixedly matched with the inner side of the inner circle 22 of the bearing 2, and the distance between the center of the rotating shaft 3 and the center of the eccentric shaft 31 is 0.45mm-0.6mm.

The working principle is as follows:

during the use, at first with injecting glue in the glue groove 14, place bearing 2 in bearing frame 11, it is spacing to make limit stop 13 fix one side of bearing 2, and simultaneously, glue in the glue groove 14 seals up bearing frame 11 and bearing 2's excircle 21 fixedly, use jump ring 4, go into jump ring 4 card jump ring inslot 15, jump ring 4 carries out axial spacing fixed to the opposite side of bearing 2, then, arrange pivot 3 in bearing 2's centre, make eccentric shaft 31's the outside and bearing 2's interior circle 22 fixed coordination, accomplish the cooperation equipment to the pendulum wheel structure promptly.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "above," and "over" a second feature may mean that the first feature is directly above or obliquely above the second feature, or that only the first feature is at a higher level than the second feature. A first feature "under," "beneath," and "under" a second feature may be directly under or obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of "one embodiment," "an example," "a specific example," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A balance wheel structure comprises a balance wheel (1), and is characterized in that a bearing (2) is arranged inside the balance wheel (1), a rotating shaft (3) fixedly connected is arranged inside the bearing (2), and a clamp spring (4) is arranged on one side of the bearing (2);

the balance wheel (1) comprises a bearing seat (11), one side of the bearing seat (11) is provided with a fixedly connected and axially limited limit stop (13), the limit stop (13) is provided with a through round hole (12), an annular glue groove (14) is arranged inside the bearing seat (11), and the other side of the bearing seat (11) is provided with a fixedly connected clamp spring groove (15);

an eccentric shaft (31) fixedly connected with the outer side of the rotating shaft (3) is arranged, and the eccentric shaft (31) and the rotating shaft (3) are integrally formed.

2. A balance structure according to claim 1, wherein the axis of rotation (3) is located at a distance of 0.45mm to 0.6mm from the centre of the eccentric shaft (31).

3. A balance structure according to claim 2, wherein the bearing seat (11) is in fixed engagement with the outer circumference (21) of the bearing (2), and the limit stop (13) axially limits one side of the outer circumference (21) of the bearing (2).

4. A balance wheel arrangement according to claim 3, wherein the glue reservoir (14) is internally provided with anaerobic glue, the glue in the glue reservoir (14) strengthening the fixing of the bearing seat (11) to the outer circumference (21) of the bearing (2).

5. A balance wheel arrangement according to claim 4, wherein the circlip (4) is snapped into the circlip groove (15) and axially fixes the other side of the outer circumference (21) of the bearing (2).

6. A balance structure according to claim 5, wherein the outer circle of the eccentric shaft (31) is in fixed engagement with the inside of the inner circle (22) of the bearing (2).