CN201623569U

CN201623569U - Embedded bearing structure for diaphragm pump motors

Info

Publication number: CN201623569U
Application number: CN2010201079944U
Authority: CN
Inventors: 卢连苗; 卢勃; 王顺斌
Original assignee: 卢连苗
Current assignee: Ningbo Qiangsheng Electric Motor Co.,Ltd.
Priority date: 2010-01-28
Filing date: 2010-01-28
Publication date: 2010-11-03
Anticipated expiration: 2020-01-28

Abstract

The utility model discloses an embedded bearing structure for diaphragm pump motors, which comprises a front end cover matched with a motor shell and a first bearing arranged in the front end cover and matched with a rotary motor shaft. The middle of the front end cover is provided with a first bearing chamber in which the first bearing is mounted, the first bearing chamber comprises a cylindrical sidewall, an open bearing chamber end and a contracted end with a through hole, the first bearing is mounted into the open bearing chamber end, and at least two fixing hooks for fixing the first bearing are arranged at intervals on the open bearing chamber end. The fixing hooks arranged on the open bearing chamber end of the first bearing chamber almost do not increase the cost, and cooperate with the first bearing to effectively prevent the first bearing from possible axial movement.

Description

A kind of embedded bearing arrangement of diaphragm pump motor

Technical field

The utility model relates to a kind of diaphragm pump motor, specifically a kind of embedded bearing arrangement of diaphragm pump motor.

Background technology

At present, reverse osmosis water purifier has obtained being extensive use of, and membrane pump directly influences the performance of reverse osmosis water purifier as wherein core component.The patent No. is ZL200620148261.6, patent name is in a kind of patent of diaphragm pump motor, a kind of diaphragm pump motor is disclosed, comprise electric machine casing and rotor assembly, carbon brush component, carbon brush holder, front end housing, rear end cap, hubcap and bearing, described bearing is arranged in the endoporus of front end housing; Described carbon brush component comprises two groups of carbon brush braces and carbon brush, is installed on the carbon brush holder respectively; Described front end housing and rear end cap are installed in electric machine casing and rotor assembly front-end and back-end respectively, and hubcap covers the center at rear end cap, it is characterized in that: also comprise bearing cover, described bearing cover covers described bearing, and is lived by screw; Described carbon brush brace is connected carbon brush holder by four Rubber foots respectively with carbon brush with rear end cap.

Diaphragm pump motor in the above-mentioned patent, the two ends of its housing are assembled front end housing and rear end cap respectively, and structure is comparatively complicated, and installation accuracy is lower.And the common problem that also exists the membrane pump noise that appearance is bigger after operation a period of time; trace it to its cause is that the fit of bearing and front end housing is not become flexible by the incompatible assurance of close-fitting in service appearance between bearing and the protecgulum; but, race deformation can occur and cause the bearing clearance to diminish and then cause be in operation heating and can make motor do more idle work of bearing otherwise be in operation because bearing itself can not bear bigger interference fit.Though the utilization of above-mentioned patent increases bearing cover and solved above-mentioned bad problem substantially with the fastening method of screw, but still exist the higher and loaded down with trivial details defective of technology of cost.

Summary of the invention

Technical problem to be solved in the utility model is at above-mentioned prior art present situation, and provide a kind of embedded bearing arrangement of diaphragm pump motor, to overcome that prior art septation pump motor axial endplay occurs behind long-play and the problem that causes noise to increase, and on the whole cost is accomplished optimization.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of embedded bearing arrangement of diaphragm pump motor comprises the front end housing that matches with electric machine casing and is arranged in the front end housing and the clutch shaft bearing that matches with machine shaft.The centre of described front end housing is shaped on the clutch shaft bearing chamber that clutch shaft bearing is installed, described clutch shaft bearing chamber comprises cylindrical side wall, one be used to pack into bearing chamber openend and a bundling port end that leaves through hole of clutch shaft bearing, is shaped at least two location grabs that are used for fixing clutch shaft bearing at interval at the bearing chamber openend.

For optimizing technique scheme, the measure of taking also comprises:

One side of above-mentioned front end housing corresponding housing is fixed with carbon brush holder, described carbon brush holder is equipped with beam, match with front end housing and housing by beam, make friction noise and carbon brush vebrato that motor is in operation can directly not pass on electric machine casing and the front end housing, effectively reduce noise.

Above-mentioned location grab comprises and the integrated flexible feet of cylindrical side wall, along the extending axially of clutch shaft bearing chamber, is shaped on hook portion to axle center projection at elongated end at this flexible feet, and the outer face of this hook portion is the inclined-plane.

Above-mentioned cylindrical side wall and clutch shaft bearing interference fit, the outer end of hook portion and clutch shaft bearing closely cooperates, and prevents the clutch shaft bearing axial endplay.

Indoor for ease of the clutch shaft bearing clutch shaft bearing of packing into, be shaped on groove in the both sides of above-mentioned flexible feet.

Bearing chamber openend periphery in above-mentioned clutch shaft bearing chamber is provided with three or four location grabs.

Compared with prior art, embedded bearing arrangement of the present utility model is provided with the location grab at the bearing chamber openend of clutch shaft bearing chamber, increase cost hardly, the location grab matches with clutch shaft bearing, has effectively prevented the axial endplay that clutch shaft bearing may occur; Clutch shaft bearing is installed simple, only needs to embed the clutch shaft bearing chamber between the grab of location, just can realize locating the engaging of grab to clutch shaft bearing.

Description of drawings

Fig. 1 is the perspective view of the utility model embodiment;

Fig. 2 is the front view that Fig. 1 is;

Fig. 3 is that the A-A of Fig. 2 is to cutaway view;

Fig. 4 is the sectional structure schematic diagram of the diaphragm pump motor of assembling front end housing;

Fig. 5 is the postrotational sectional structure schematic diagram of Fig. 4;

Fig. 6 is the assembling decomposing schematic representation of Fig. 4;

Embodiment

Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.

Fig. 1 is to Figure 6 shows that structural representation of the present utility model.

Reference numeral wherein is: housing 1, openend 1a, blind end 1b, the second bearing chamber 1c, protuberance 1d, rotating shaft 2, rotor assembly 3, commutator 3a, carbon brush holder 4, carbon brush 5, front end housing 6, clutch shaft bearing chamber 6a, cylindrical side wall 6b, bearing chamber openend 6c, bundling port end 6d, through hole 601d, location grab 6e, flexible feet 601e, hook portion 602e, inclined-plane 603e, groove 6f, clutch shaft bearing 7, beam 8, second bearing 9, axle sleeve 10.

As shown in Figure 6, diaphragm pump motor of the present utility model comprises housing 1, is arranged on rotor assembly 3, carbon brush holder 4 in the housing 1, is arranged on carbon brush 5 and front end housing 6 on the carbon brush holder 4 by rotating shaft 2.

Housing 1 is one-body molded, is shaped on an openend 1a and a blind end 1b, and this blind end 1b constitutes the rear end cap of diaphragm pump motor, and is shaped on the second bearing chamber 1c that is used to install second bearing 9 at blind end 1b.Housing 1 and rear end cap of the prior art are made of one formula, have reduced the assembling link, guaranteed the quality of product and provide cost savings.

In the present embodiment, the blind end 1b of housing 1 is shaped on a protuberance 1d, and the second bearing chamber 1c is positioned at the center of protuberance 1d, at the second bearing chamber 1c internal fixation second bearing 9 is installed.

Front end housing 6 matches with the openend 1a of housing 1, is shaped on the clutch shaft bearing chamber 6a that is used to install clutch shaft bearing 7 on front end housing 6.As shown in Figure 1 to Figure 3, the clutch shaft bearing chamber 6a of front end housing 6 comprises cylindrical side wall 6b, one be used to pack into bearing chamber openend 6c and a bundling port end 6d who leaves through hole 601d of clutch shaft bearing 7.Outer weekly interval at the bearing chamber openend 6c of clutch shaft bearing chamber 6a is shaped on three location grab 6e that are used for fixing clutch shaft bearing 7.

Location grab 6e comprises the integrated flexible feet 601e with cylindrical side wall 6b, along the extending axially of clutch shaft bearing chamber 6a, is shaped on hook portion 602e to axle center projection at elongated end at this flexible feet 601e, and the outer face of this hook portion 602e is inclined-plane 603e.Pack in the 6a of clutch shaft bearing chamber for ease of clutch shaft bearing 7, the both sides of flexible feet 601e are shaped on groove 6f, to increase the elastic module of flexible feet 601e.

The cylindrical side wall 6b of clutch shaft bearing chamber 6a and clutch shaft bearing 7 interference fit, the outer end of hook portion 602e and clutch shaft bearing 7 closely cooperates.When clutch shaft bearing 7 is installed, only need clutch shaft bearing 7 is squeezed into clutch shaft bearing chamber 6a, clutch shaft bearing 7 is inwardly sliding along the inclined-plane 603e of location grab 6e, flexible feet 601e elongated end hook portion 602e outwards expands simultaneously, after clutch shaft bearing 7 snapped in clutch shaft bearing chamber 6a, location grab 6e is elastic recovery just, and the outer end of hook portion 602e and clutch shaft bearing 7 closely cooperates, prevent clutch shaft bearing 7 axial endplays, break away from clutch shaft bearing chamber 6a.

Rotor assembly 3 comprises rotor and the commutator 3a that is wound with coil, and rotor and commutator 3a are fixedly installed in the rotating shaft 2, install between blind end 1b and the front end housing 6 by rotating shaft 2, and commutator 3a is near front end housing 6.

One end of rotating shaft 2 is rotatably assorted with second bearing 9 that is installed in blind end 1b, and the other end is rotatably assorted with the clutch shaft bearing 7 that is installed in the front end housing 6.Second bearing 9 is preferably oiliness bearing in the utility model.Also can be provided with axle sleeve 10 in clutch shaft bearing 7, rotating shaft 2 matches with clutch shaft bearing 7 by axle sleeve 10.

Carbon brush holder 4 matches with the inboard of front end housing 6, and the carbon brush 5 on the carbon brush holder 4 matches with commutator 3a in the rotor assembly 3.

At carbon brush holder 4 beam 8 is installed, beam 8 matches with housing 1 and front end housing 6, make friction noise and carbon brush 5 vebratos that motor is in operation can directly not pass on electric machine casing 1 and the front end housing 6, the vibration that the soft rubber pad that passes through absorbs carbon brush 5 reaches the effect that reduces noise.

Integral installation process of the present utility model is as follows: carry out aided process earlier, axle sleeve 10 is pressed into clutch shaft bearing 7 inner rings, and this combination is pressed in the clutch shaft bearing chamber 6a of front end housing 6; Carbon brush 5 is inserted in the brush carrier hole of carbon brush holder 4 respectively and connect corresponding power outlet, beam 8 is enclosed within on the carbon brush holder 4.Rotor assembly 3 inserted in the housing 1 and with second bearing 9 away from the end of commutator 3a match, carbon brush holder 4 is set in the rotating shaft 2 and with the breach that beam 8 is aimed on the housings 1, front end housing 6 and housing 1 and front end housing 6 are tightened together with securing member again closes.

Most preferred embodiment of the present utility model is illustrated, and various variations or the remodeling made by those of ordinary skills can not break away from scope of the present utility model.

Claims

1. the embedded bearing arrangement of a diaphragm pump motor, comprise the front end housing (6) that matches with electric machine casing (1) and be arranged in the front end housing (6) and the clutch shaft bearing (7) that matches with machine shaft (2), it is characterized in that: the centre of described front end housing (6) is shaped on the clutch shaft bearing chamber (6a) that described clutch shaft bearing (7) is installed, described clutch shaft bearing chamber (6a) comprises cylindrical side wall (6b), be used to pack into the bearing chamber openend (6c) of clutch shaft bearing (7) and the bundling port end (6d) that is left through hole (601d) are shaped at least two location grabs (6e) that are used for fixing clutch shaft bearing (7) at interval at bearing chamber openend (6c).

2. the embedded bearing arrangement of a kind of diaphragm pump motor according to claim 1, it is characterized in that: a side of described front end housing (6) corresponding housing (1) is fixed with carbon brush holder (4), described carbon brush holder (4) is equipped with beam (8), matches with front end housing (6) and housing (1) by beam (8).

3. the embedded bearing arrangement of a kind of diaphragm pump motor according to claim 1 and 2, it is characterized in that: described location grab (6e) comprises and the integrated flexible feet of cylindrical side wall (6b) (601e), this flexible feet (601e) extending axially along clutch shaft bearing chamber (6a), be shaped on hook portion (602e) to the axle center projection at elongated end, the outer face of this hook portion (602e) is inclined-plane (603e).

4. the embedded bearing arrangement of a kind of diaphragm pump motor according to claim 3 is characterized in that: described cylindrical side wall (6b) and clutch shaft bearing (7) interference fit, hook portion (602e) closely cooperates with the outer end of clutch shaft bearing (7).

5. the embedded bearing arrangement of a kind of diaphragm pump motor according to claim 4, it is characterized in that: the both sides of flexible feet (601e) are shaped on groove ((5f)).

6. the embedded bearing arrangement of a kind of diaphragm pump motor according to claim 5, it is characterized in that: bearing chamber openend (6c) periphery in described clutch shaft bearing chamber (6a) is provided with three or four location grabs (6e).