The model utility content
Technical problem to be solved in the utility model provides positioning device and the electric expansion valve that is used for the electronic expansion valve rotor, makes rotor only do rotation motion, and when rotation is stable, frictional force is little.
For solving the problems of the technologies described above, the utility model provides a kind of positioning device that is used for the electronic expansion valve rotor, comprise that the bearing type supporting gear that is used for fixing in valve body supports with the distolateral bearing type that matches of rotor with being used for, described bearing type supporting is installed in the bearing type supporting gear.
Described bearing type supporting gear comprises that at least being respectively applied for the upper, middle and lower bearing type supporting that is fixed on the valve body keeps off one of them, accordingly, bearing type supporting comprises the upper bearing (metal) formula supporting that is used for matching with the upper end of rotor at least, is used for the middle (center) bearing formula supporting that matches with groove on the rotor sidewall and the lower bearing formula that is used for matching with the lower end of rotor supports one of them; Described upper bearing (metal) formula supporting, the supporting of middle (center) bearing formula and the supporting of lower bearing formula are installed in respectively in upper bearing (metal) formula supporting retaining, middle (center) bearing formula supporting retaining and the lower bearing formula supporting retaining.
The supporting of described upper bearing (metal) formula is supported one of them for the supporting of sliding bearing formula and rolling bearing type, described in, the supporting of lower bearing formula is that slip and rolling bearing type support one of them.
Described bearing type supporting gear comprise at least be respectively applied for be fixed on the valve body in, lower bearing formula supporting retaining one of them, accordingly, bearing type supporting comprises the upper bearing (metal) formula supporting that is used for matching with the upper end of rotor at least, is used for the middle (center) bearing formula supporting that matches with groove on the rotor sidewall and the lower bearing formula that is used for matching with the lower end of rotor supports one of them; Described middle (center) bearing formula supporting and the supporting of lower bearing formula are installed in respectively in middle (center) bearing formula supporting retaining and the lower bearing formula supporting retaining, described upper bearing (metal) formula supporting is the some supporting, and it comprises the other end that is used for embedding the tip of apex rotor central recess and is used for the butt valve body.
In described, lower bearing formula supporting is respectively and slides and rolling bearing type supports one of them.
A kind of electric expansion valve comprises valve body, rotor and positioning device, and described rotor is installed in the valve body; Described positioning device is installed in the valve body, described positioning device is used to make rotor only to do rotation motion, and it comprises bearing type supporting gear and bearing type supporting, and described bearing type supporting is fixed in the valve body, the bearing type supporting is installed in the bearing type supporting gear, and matches with the distolateral of rotor.
Described bearing type supporting gear comprises that at least upper, middle and lower bearing type supporting keeps off one of them, and described upper, middle and lower bearing type supporting retaining is separately fixed on the valve body; Accordingly, the bearing type supporting comprises that at least the supporting of upper bearing (metal) formula, the supporting of middle (center) bearing formula and lower bearing formula support one of them; The supporting of described upper bearing (metal) formula matches with the upper end of rotor, and described middle (center) bearing formula supporting matches with groove on the rotor sidewall, and described lower bearing formula supports and matches with the lower end of rotor; Described upper bearing (metal) formula supporting, the supporting of middle (center) bearing formula and the supporting of lower bearing formula are installed in respectively in upper bearing (metal) formula supporting retaining, middle (center) bearing formula supporting retaining and the lower bearing formula supporting retaining.
The supporting of described upper bearing (metal) formula is supported one of them for the supporting of sliding bearing formula and rolling bearing type, described in, the supporting of lower bearing formula is that slip and rolling bearing type support one of them.
Described bearing type supporting gear comprises that at least middle (center) bearing formula supporting retaining and the supporting of lower bearing formula keep off one of them, and middle (center) bearing formula supporting retaining and lower bearing formula supporting retaining are separately fixed on the valve body; Accordingly, the bearing type supporting comprises that at least the supporting of upper bearing (metal) formula, the supporting of middle (center) bearing formula and lower bearing formula support one of them; The supporting of described upper bearing (metal) formula matches with the upper end of rotor, and described middle (center) bearing formula supporting matches with groove on the rotor sidewall, and described lower bearing formula supports and matches with the lower end of rotor; Described middle (center) bearing formula supporting and the supporting of lower bearing formula are installed in respectively in middle (center) bearing formula supporting retaining and the lower bearing formula supporting retaining, and described upper bearing (metal) formula supporting is gone up roof for the some supporting in its most advanced and sophisticated butt valve body, and the other end embeds apex rotor.
In described, lower bearing formula supporting is respectively and slides and rolling bearing type supports one of them.
Compared with prior art, the utlity model has following advantage:
Adopt positioning device of the present utility model, the bearing type supporting cooperates with the distolateral of rotor, makes rotor be constrained to and has only a degrees of freedom of rotating around axis.
The supporting of upper bearing (metal) formula is supported one of them for the supporting of sliding bearing formula, rolling bearing type supporting and point, in described, lower bearing formula supporting is for sliding and rolling bearing type supports one of them, thereby make rotor minimum friction forces when rotated, help improving the valve ability of opening of valve.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Referring to Fig. 1 extremely, a kind of positioning device that is used for the electronic expansion valve rotor comprises that the bearing type supporting gear that is used for fixing in valve body 2 supports with the distolateral bearing type that matches of rotor 2 with being used for, and described bearing type supporting is installed in the bearing type supporting gear.
Described bearing type supporting gear comprise at least be respectively applied for respect to the fixing upper, middle and lower bearing type supporting retaining of valve body 1 31,35,32 one of them, accordingly, bearing type supporting comprise the upper bearing (metal) formula supporting 33 that is used for matching at least with the upper end of rotor 2, be used for the middle (center) bearing formula supporting 36 that matches with groove on rotor 2 sidewalls and the lower bearing formula supporting that is used for matching 34 with the lower end of rotor 2 one of them; Described upper bearing (metal) formula supporting 33, the supporting 36 of middle (center) bearing formula and lower bearing formula supporting 34 are installed in respectively in upper bearing (metal) formula supporting retaining 31, middle (center) bearing formula supporting retaining 35 and the lower bearing formula supporting retaining 32.
Described upper bearing (metal) formula supporting 33 be at least the supporting of sliding bearing formula, rolling bearing type supporting and some supporting one of them, described in, lower bearing formula supporting 36,34 is at least and slides and rolling bearing type supports one of them.
When described upper bearing (metal) formula supporting 33 was the some supporting, it comprised the other end that is used for embedding the tip of rotor 2 top central recess and is used for butt valve body 1.
A kind of electric expansion valve comprises valve body 1, rotor 2 and positioning device 3, and described rotor 2 is installed in the valve body 1; Described positioning device 3 is installed in the valve body 1, and matches with rotor 2, is used to make rotor 2 only to do rotation motion.
Described positioning device 3 comprises bearing type supporting gear and bearing type supporting, and described bearing type supporting is fixed in the valve body 1, and the bearing type supporting is installed in the bearing type supporting gear, and matches with the distolateral of rotor 2.
Described bearing type supporting gear comprise at least upper, middle and lower bearing types supporting retaining 31,35,32 one of them, accordingly, bearing type supporting comprise at least upper, middle and lower bearing type supporting 33,36,34 one of them, described upper, middle and lower bearing type supporting retaining 31,35,32 is fixing with respect to valve body 1 respectively, described upper bearing (metal) formula supporting 33 is installed in the upper bearing (metal) formula supporting retaining 31, and matches with the upper end of rotor 2; Described middle (center) bearing formula supporting 36 is installed in the middle (center) bearing formula supporting retaining 35, and matches with groove on rotor 2 sidewalls; Described lower bearing formula supporting 34 is installed in the lower bearing formula supporting retaining 32, and matches with the lower end of rotor 2.
Described upper bearing (metal) formula supporting 33 be at least the supporting of sliding bearing formula, rolling bearing type supporting and some supporting one of them, described in, lower bearing formula supporting 36,34 is at least and slides and rolling bearing type supports one of them.
When described upper bearing (metal) formula supporting 33 was the some supporting, its tip embedded in the rotor 2 top central recess, the other end butt valve body 1.
Embodiment one, as shown in Figure 1, and a kind of electric expansion valve, comprise valve body 1, rotor 2 and positioning device 3, positioning device 3 comprises metal (upper formula supporting retaining 31,32 and metal (upper formula supporting 33,34, and in the present embodiment, metal (upper formula supporting 33,34 all is the rolling bearing type supporting.
Upper and lower bearing type supporting retaining 31,32 is separately fixed in the valve body 1, and upper bearing (metal) formula supporting 33 is installed in the upper bearing (metal) formula supporting retaining 31, and matches with the upper end of rotor 2; Lower bearing formula supporting 34 is installed in the lower bearing formula supporting retaining 32, and matches with the lower end of rotor 2.
Embodiment two, and as shown in Figure 2, a kind of electric expansion valve is with embodiment one difference, and the supporting 34 of lower bearing formula is supported for the sliding bearing formula.
Embodiment three, and as shown in Figure 3, a kind of electric expansion valve is with embodiment one difference, and metal (upper formula supporting 33,34 is all supported for the sliding bearing formula.
Embodiment four, and as shown in Figure 4, a kind of electric expansion valve is with embodiment one difference, and the supporting 33 of upper bearing (metal) formula is supported for the sliding bearing formula.
Embodiment five, as shown in Figure 5, and a kind of electric expansion valve, be that with embodiment one difference positioning device 3 comprises lower bearing formula supporting retaining 32 and metal (upper formula supporting 33,34, upper bearing (metal) formula supporting 33 is the some supporting, go up roof in its most advanced and sophisticated butt valve body 1, the other end embeds rotor 2 tops; The supporting 34 of lower bearing formula is the rolling bearing type supporting.
Embodiment six, and as shown in Figure 6, a kind of electric expansion valve is with embodiment five difference, and the supporting 34 of lower bearing formula is supported for the sliding bearing formula.
Embodiment seven, as shown in Figure 7, a kind of electric expansion valve, comprise valve body 1, rotor 2 and positioning device 3, positioning device 3 comprises upper bearing (metal) formula supporting retaining 31, middle (center) bearing formula supporting retaining 35, the supporting 33 of upper bearing (metal) formula and middle (center) bearing formula supporting 36, in the present embodiment, supporting 33 of upper bearing (metal) formula and middle (center) bearing formula supporting 36 all are the rolling bearing type supporting
Upper bearing (metal) formula supporting retaining 31 and middle (center) bearing formula supporting retaining 35 are separately fixed in the valve body 1; Upper bearing (metal) formula supporting 33 is installed in the upper bearing (metal) formula supporting retaining 31, and matches with the upper end of rotor 2; Middle (center) bearing formula supporting 36 is installed in the middle (center) bearing formula supporting retaining 35, and matches with groove on rotor 2 sidewalls
Embodiment eight, and as shown in Figure 8, a kind of electric expansion valve is with embodiment seven difference, and the supporting 36 of middle (center) bearing formula is supported for the sliding bearing formula.
Embodiment nine, and as shown in Figure 9, a kind of electric expansion valve is with embodiment seven difference, and supporting 33 of upper bearing (metal) formula and middle (center) bearing formula supporting 36 are all supported for the sliding bearing formula.
Embodiment ten, and as shown in figure 10, a kind of electric expansion valve is with embodiment seven difference, and the supporting 33 of upper bearing (metal) formula is supported for the sliding bearing formula.
Embodiment 11, as shown in figure 11, a kind of electric expansion valve, be with embodiment seven difference, positioning device 3 comprises middle (center) bearing formula supporting retaining 35, the supporting 33 of upper bearing (metal) formula and middle (center) bearing formula supporting 36, upper bearing (metal) formula supporting 33 is the some supporting, goes up roof in its most advanced and sophisticated butt valve body 1, and the other end embeds rotor 2 tops; The supporting 36 of middle (center) bearing formula is the rolling bearing type supporting.
Embodiment 12, and as shown in figure 12, a kind of electric expansion valve is with embodiment 11 difference, and the supporting 36 of middle (center) bearing formula is supported for the sliding bearing formula.
Embodiment 13, as shown in figure 13, a kind of electric expansion valve, comprise valve body 1, rotor 2 and positioning device 3, positioning device 3 comprises middle (center) bearing formula supporting retaining 35, lower bearing formula supporting retaining 32, the supporting 36 of middle (center) bearing formula and lower bearing formula supporting 34, in the present embodiment, supporting 36 of middle (center) bearing formula and lower bearing formula supporting 34 all are the rolling bearing type supporting.
Middle (center) bearing formula supporting retaining 35 and lower bearing formula supporting retaining 32 are separately fixed in the valve body 1, and described middle (center) bearing formula supporting 36 is installed in the middle (center) bearing formula supporting retaining 35, and match with groove on rotor 2 sidewalls; Described lower bearing formula supporting 34 is installed in the lower bearing formula supporting retaining 32, and matches with the lower end of rotor 2.
Embodiment 14, and as shown in figure 14, a kind of electric expansion valve is with embodiment 13 difference, and the supporting 34 of lower bearing formula is supported for the sliding bearing formula.
Embodiment 15, and as shown in figure 15, a kind of electric expansion valve is with embodiment 13 difference, and supporting 36 of middle (center) bearing formula and lower bearing formula supporting 34 are all supported for the sliding bearing formula.
Embodiment 16, and as shown in figure 16, a kind of electric expansion valve is with embodiment 13 difference, and the supporting 36 of middle (center) bearing formula is supported for the sliding bearing formula.
More than positioning device and the electric expansion valve that is used for the electronic expansion valve rotor provided by the utility model is described in detail, used specific case herein principle of the present utility model and mode of execution are set forth, above embodiment's explanation just is used for helping to understand method of the present utility model and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present utility model, the part that all can change in specific embodiments and applications, in sum, this description should not be construed as restriction of the present utility model.