CN212155654U

CN212155654U - Balance flywheel for micropump

Info

Publication number: CN212155654U
Application number: CN202020469530.1U
Authority: CN
Inventors: 廖俊
Original assignee: Chengdu Hilintec Technology Co ltd
Current assignee: Chengdu Hilintec Technology Co ltd
Priority date: 2020-04-02
Filing date: 2020-04-02
Publication date: 2020-12-15
Anticipated expiration: 2030-04-02

Abstract

The utility model discloses a balanced flywheel for micro-pump mainly solves the requirement inner space that exists among the prior art big, and the security is low, the not enough problem of reliability. The balance flywheel for the micropump comprises a rotor-shaped balance flywheel body, wherein a through hole is formed in the center of the balance flywheel body; the rotating piece is positioned in the through hole, and the motor is positioned in the rotating piece; a first inner hole and a second inner hole are arranged on the inner wall of the through hole; fasteners are respectively arranged in the first inner hole and the second inner hole and are respectively fastened between the balance flywheel body and the rotating part and between the rotating part and the motor rotating shaft. By the proposal, the utility model discloses reach balanced effectual, simple structure, low cost and the high purpose of security, had very high practical value and spreading value.

Description

Balance flywheel for micropump

Technical Field

The utility model relates to a balanced flywheel, specifically speaking relates to a balanced flywheel for micro-pump.

Background

The micro pump is a small industrial product, so the diameter and the length of the eccentric wheel of the micro pump are generally small; generally, inertia balance is carried out by a screw or metal rod method, if a screw or metal rod with a small diameter is adopted, the screw or metal rod is more in threaded fit and screwing with an eccentric wheel, the connection is reliable, but in order to provide enough anti-inertia force for a motion mechanism, the length of an overhanging part of the screw or metal rod with the small diameter is longer, the requirement on the space inside a micro pump is larger, and the reduction of the size of the micro pump is not facilitated; if a large-diameter screw or metal rod is adopted, although enough anti-inertia force can be provided, and the length of the external extending part of the large-diameter screw or metal rod is short, the screw or metal rod is less in threaded fit with the eccentric wheel, the connection is unreliable, the screw or metal rod is easy to loosen, the reliability of the product is influenced, and if an anti-loose structure or process is adopted, the product or process is complicated; for the inertia balance by the fan-shaped or special-shaped balancing weight method, the fan-shaped or special-shaped balancing weight needs numerical control processing, the processing cost is high, and the production efficiency is low.

In summary, the problems of the existing balance flywheel for the micro pump are: firstly, the diameter of the screw or the metal rod is small, the requirement for large internal space is high, and the safety is low; the diameter of the screw or the metal rod is large, and the reliability is insufficient; secondly, fan-shaped balancing weight, the processing cost is high.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a balanced flywheel for micro-pump to there is balanced effect difference to require that the inner space is big in the balanced device for solving current micro-pump, and the security is low, the not enough problem of reliability.

In order to solve the above problem, the utility model provides a following technical scheme:

a balance flywheel for a micropump comprises a rotor-shaped balance flywheel body, wherein a through hole is formed in the center of the balance flywheel body; the rotating piece is positioned in the through hole, and the motor is positioned in the rotating piece; a first inner hole and a second inner hole are arranged on the inner wall of the through hole; fasteners are respectively arranged in the first inner hole and the second inner hole and are respectively fastened between the balance flywheel body and the rotating part and between the rotating part and the motor rotating shaft.

Specifically, at least one of the end surface of the revolving body and the revolving outer wall of the balance flywheel body is provided with an anti-inertia hole; the number of anti-inertia holes is at least one.

In particular, the balance flywheel body and the rotating piece can be connected by adopting a pin connection or an interference connection.

Specifically, the fastener is a fastening screw; the first inner hole and the second inner hole are respectively provided with threads matched with the fastening screws.

Specifically, the first inner hole, the second inner hole and the anti-inertia hole can be any one of a unthreaded hole, a threaded hole, a square hole and a special-shaped hole.

Specifically, the anti-inertia pore is a complete pore structure or an incomplete pore structure.

Specifically, the balance flywheel body, the rotating piece and the motor are integrally manufactured and molded.

In particular, the rotating member is an eccentric.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) the inner wall of the through hole of the balance flywheel body is provided with a first inner hole and a second inner hole, the first inner hole and the second inner hole are connected with the rotating piece and the driving mechanism, and the fastening connection is realized by adopting the modes such as set screw connection, interference connection, pin connection and the like, and the contact area of the connection of the balance flywheel body is increased by the through hole matching mode or is directly formed by integrally processing with the rotating piece; the balance flywheel body is in a circular ring shape, and does not have an overhanging part during high-speed rotation, so the rotation is safer, and the balance flywheel body is connected with the rotating part and the driving mechanism through the first inner hole and the second inner hole, the contact area is larger or the balance flywheel body is directly formed by integrally processing the rotating part and the driving mechanism, and the connection is more reliable.

(2) The utility model discloses there is the anti-inertia hole that quantity is not less than 1 on the terminal surface or the face of cylinder of well balanced flywheel body, increases or all the other parts of different specific gravity in order to reach the purpose of adjusting balanced flywheel body barycenter through anti-inertia hole, provides the anti-inertia effort that balanced flywheel needs to reach, and the processing profile of balanced flywheel is mostly hole or solid of revolution, so the processing cost is low, and production efficiency is high.

Drawings

Fig. 1 is a schematic structural diagram of the application of the present invention.

Fig. 2 is an isometric schematic side view of a balanced flywheel configuration.

Fig. 3 is a schematic front view of a balance flywheel structure.

Fig. 4 is a sectional view of the balance flywheel structure a-a.

In the drawings, the names of the parts corresponding to the reference numerals are as follows:

1-balance flywheel body, 2-fastener, 4-rotator, 5-motor, 11-anti-inertia hole, 12-second inner hole, 13-through hole, 14-first inner hole, 15-end face and 16-rotary outer wall.

Detailed Description

The present invention will be further described with reference to the following drawings and examples, and embodiments of the present invention include, but are not limited to, the following examples.

As shown in fig. 1 to 4, a balance flywheel for a micro pump includes a balance flywheel body 1 in a shape of a rotator, and a through hole 13 is formed in the center of the balance flywheel body 1; the rotating piece is positioned in the through hole 13, and the motor 5 is positioned in the rotating piece; a first inner hole 14 and a second inner hole 12 are arranged on the inner wall of the through hole 13; the first inner hole 14 and the second inner hole 12 are respectively provided with a fastener 2 which is respectively fastened between the balance flywheel body 1 and the rotating part and between the rotating part and the rotating shaft of the motor 5; the first inner hole and the second inner hole can be through holes or blind holes; the balance flywheel body 1 is a cylinder in this embodiment.

In a preferred embodiment of the present invention, at least one of the end face 15 of the rotation body and the outer wall 16 of the balance flywheel body 1 is provided with an anti-inertia hole 11; the number of the anti-inertia holes 11 is at least one; in the embodiment, the anti-inertia holes 11 are arranged on the end surface 15 of the revolving body, and the number of the anti-inertia holes is two; the diameter, the processing number and the processing position of the anti-inertia holes 11 are determined according to the anti-inertia force required to be provided by balance.

In the present embodiment, the fastener 2 is a fastening screw; the first inner hole 14 and the second inner hole 12 are respectively provided with threads matched with fastening screws; the balance flywheel body 1 and the rotating piece can be connected in other connection modes such as pin connection or interference connection.

The first inner hole 14, the second inner hole 12 and the anti-inertia hole 11 can be any one of a smooth hole, a threaded hole, a square hole and a special-shaped hole; the anti-inertia hole 11 is of a complete hole structure or an incomplete hole structure, and the incomplete structure, such as the incomplete structure with a notch, is processed at the edge position of the balance flywheel body 1; the anti-inertia hole can be a through hole or a blind hole.

In the preferred embodiment of the present invention, the balance flywheel body 1 is integrally formed with the rotating member and the motor 5.

In a preferred embodiment of the present invention, the rotating member is an eccentric wheel; it may also be other rotating members.

The balance flywheel body 1 is a revolving body, a first inner hole 14 and a second inner hole 12 are arranged on the inner wall of a through hole 13 of the balance flywheel body 1, the first inner hole 14 and the second inner hole 12 are connected with a rotating part and a driving mechanism, and are fixedly connected by adopting modes such as set screw connection, interference connection, pin connection and the like, and the contact area of the balance flywheel body 1 is increased by matching the through hole 13 or is directly processed with the rotating part integrally; the balance flywheel body 1 is annular, and does not have an overhanging part when rotating at high speed, so the rotation is safer, and the balance flywheel body 1 is connected with a rotating part and a driving mechanism through a first inner hole 14 and a second inner hole 12, the contact area is larger or the balance flywheel body is directly integrated with the rotating part and the driving mechanism, the connection is more reliable, the problems that the diameter of a screw or a metal rod is small, the required inner space is large, and the safety is low are solved; the diameter of the screw or the metal rod is large, and the reliability is insufficient.

The number of the anti-inertia holes 11 is not less than 1 on the end face 15 or the cylindrical surface of the balance flywheel body 1, the anti-inertia holes 11 are added or other parts with different specific weights are nested in the holes to achieve the purpose of adjusting the mass center of the balance flywheel body 1, the anti-inertia acting force required by the balance flywheel is provided, and the processing outline of the balance flywheel is mostly holes or a revolving body, so the processing cost is low, the production efficiency is high, and the problem of high processing cost of the fan-shaped balancing weight is solved.

Current balanced flywheel relatively the utility model has the advantages of it is following:

1. the utility model has good dynamic balance effect; at first, the unbalanced moment of micropump is that can the accurate calculation obtain, the utility model discloses a balanced flywheel can structurally realize the balanced moment who is very close theoretical demand to can realize fine balanced effect.

2. The utility model has simple structure, simple and convenient processing, low cost and simple debugging; the shape and the structure are simple, the common processing equipment can be competent, and the processing cost is low; in production, the assembly is also very simple and requires little adjustment.

3. The utility model discloses a firm in connection, the reliability is high, and the security is high.

According to the above embodiment, alright realize the utility model discloses well. It is worth to say that, on the premise of the above structural design, in order to solve the same technical problem, even if some insubstantial changes or retouching are made in the utility model, the essence of the adopted technical scheme is still the same as the utility model, so it should be in the protection scope of the utility model.

Claims

1. The utility model provides a balanced flywheel for micro-pump which characterized in that: the balance flywheel comprises a rotor-shaped balance flywheel body (1), wherein a through hole (13) is formed in the center of the balance flywheel body (1); the rotating piece is positioned in the through hole (13), and the motor (5) is positioned in the rotating piece; a first inner hole (14) and a second inner hole (12) are arranged on the inner wall of the through hole (13); the first inner hole (14) and the second inner hole (12) are respectively provided with a fastener (2) which is respectively fastened between the balance flywheel body (1) and the rotating part and between the rotating part and the rotating shaft of the motor (5).

2. The balance flywheel for the micro-pump according to claim 1, wherein: at least one of the end surface (15) of the revolving body and the outer wall (16) of the balancing flywheel body (1) is provided with an anti-inertia hole (11); the number of the anti-inertia holes (11) is at least one.

3. The balance flywheel for the micro-pump according to claim 2, wherein: the balance flywheel body (1) and the rotating piece can be connected through a pin or in an interference manner.

4. A balance flywheel for a micro-pump according to claim 3, wherein: the fastener (2) is a fastening screw; the first inner hole (14) and the second inner hole (12) are respectively provided with threads matched with the fastening screw.

5. The balance flywheel for the micro-pump according to any one of claims 1 to 4, wherein: the first inner hole (14), the second inner hole (12) and the anti-inertia hole (11) can be any one of a unthreaded hole, a threaded hole, a square hole and a special-shaped hole.

6. The balance flywheel for the micro-pump according to claim 5, wherein: the anti-inertia hole (11) is of a complete hole structure or a non-complete hole structure.

7. The balance flywheel for the micro-pump according to claim 6, wherein: the balance flywheel body (1), the rotating piece and the motor (5) are manufactured and molded integrally.

8. The balance flywheel for the micro-pump according to claim 7, wherein: the rotating piece is an eccentric wheel.