A push-swing combined wave generator, comprising a wave-generating fixing bracket (1), a servo motor (3), a driving wheel (4), a connecting rod (5), a first hydraulic cylinder (8), a second hydraulic cylinder (9), a first hydraulic cylinder push rod (10), a second hydraulic cylinder push rod (11), and a wave-generating plate (12);
- the wave-generating fixing bracket (1) is L-shaped and consists of a bottom plate and a vertical plate;
- the bottom plate is horizontally arranged on a floor;
- the vertical plate is perpendicular to the bottom plate and has a rectangular notch arranged on an upper part of the vertical plate, with a depth of the rectangular notch being ⅕-½ of a height of the vertical plate;
- the servo motor (3) is fixed on the upper part of the vertical plate and between the rectangular notch and a vertical side of the vertical plate, with a driving shaft thereof facing the rectangular notch;
- the driving wheel (4) is arranged in the rectangular notch and is perpendicular to the vertical plate, with a rotating shaft in a center thereof connected with the driving shaft of the servo motor (3);
- a boss is arranged on the driving wheel (4), with a center of the boss being ½- 9/10 of a radius of the driving wheel distanced from the center of the driving wheel, and a diameter thereof being 1/30- 1/10 of a diameter of the driving wheel (4);
- a through hole is arranged on each end of the connecting rod (5), with the boss of the driving wheel (4) inserted into one of the though holes to form a rotating pair;
- the first hydraulic cylinder (8) and the second hydraulic cylinder (9) each is arranged on the vertical plate ⅛˜½ of a height of the vertical plate distanced from the bottom plate, and ⅛˜½ of a width of the vertical plate distanced from a respective side of the vertical plate;
- one end of the first hydraulic cylinder push rod (10) is inserted in the first hydraulic cylinder (8), while a side surface of another end thereof away from the vertical plate is arranged with a rotating-pin through hole, a lower sliding-pin through hole and an upper sliding-pin through hole;
- the lower sliding-pin through hole and the upper sliding-pin through hole of the first hydraulic cylinder push rod (10) are symmetrical in respect to the rotating-pin through hole thereof;
- one end of the second hydraulic cylinder push rod (11) is inserted in the second hydraulic cylinder (9), while a side surface of another end thereof away from the vertical plate is arranged with a rotating-pin through hole, a lower sliding-pin through hole and an upper sliding-pin through hole;
- the lower sliding-pin through hole and the upper sliding-pin through hole of the second hydraulic cylinder push rod (11) are symmetrical in respect to the rotating-pin through hole thereof;
- a pair of first U-shaped bosses (120) are arranged horizontally and symmetrically spacedly apart on a lower part of the wave-generating plate (12), with said each first U-shaped boss (120) having a rotating-pin through hole, a lower sliding-pin through hole and an upper sliding-pin through hole arranged there-through;
- the rotating-pin through hole of said each first U-shaped boss (120) corresponds and matches that on the first hydraulic cylinder push rod (10), the lower sliding-pin through hole of said each first U-shaped boss (120) corresponds and matches that on the first hydraulic cylinder push rod (10), and the upper sliding-pin through hole of said each first U-shaped boss (120) corresponds and matches that on the first hydraulic cylinder push rod (10);
- the end of the first hydraulic cylinder push rod (10) away from the vertical plate is entrenched in a space between the two first U-shaped bosses (120);
- a rotating pin (13) runs through the rotating-pin through holes of the two first U-shaped bosses (120) and that of the first hydraulic cylinder push rod (10) to form a rotating pair;
- a lower sliding pin (140) and an upper sliding pin (141) are simultaneously insertable into the lower sliding-pin through holes of the two first U-shaped bosses (120) and that on the first hydraulic cylinder push rod (10) and into the upper sliding-pin through holes of the two first U-shaped bosses (120) and that on the first hydraulic cylinder push rod (10) respectively, to form a sliding pair;
- a pair of second U-shaped bosses (121) are arranged horizontally and symmetrically spacedly apart on the lower part of the wave-generating plate (12), with said each second U-shaped boss (121) having a rotating-pin through hole, a lower sliding-pin through hole and an upper sliding-pin through hole arranged there-through;
- the rotating-pin through hole of said each second U-shaped boss (121) corresponds and matches that on the second hydraulic cylinder push rod (11), the lower sliding-pin through hole of said each second U-shaped boss (121) corresponds and matches that on the second hydraulic cylinder push rod (11), and the upper sliding-pin through hole of said each second U-shaped boss (121) corresponds and matches that on the second hydraulic cylinder push rod (11);
- the end of the second hydraulic cylinder push rod (11) away from the vertical plate is entrenched in a space between the two second U-shaped bosses (121);
- a rotating pin runs through the rotating-pin through holes of the two second U-shaped bosses (121) and that of the second hydraulic cylinder push rod (11) to form a rotating pair;
- a lower sliding pin (140) and an upper sliding pin (141) are simultaneously insertable into the lower sliding-pin through holes of the two second U-shaped bosses (121) and that on the second hydraulic cylinder push rod (11) and into the upper sliding-pin through holes of the two second U-shaped bosses (121) and that on the second hydraulic cylinder push rod (11) respectively, to form a sliding pair;
- a distance from a center line between the two first U-shaped bosses (120) to a center line between the two second U-shaped bosses (121) is equal to a distance between a center line of the first hydraulic cylinder (8) and a center line of the second hydraulic cylinder (9);
- a pair of third U-shaped bosses (122) are arranged horizontally and symmetrically spacedly apart on an upper part of the wave-generating plate (12), with a center line between the two third U-shaped bosses (122) corresponding with a center line of the wave-generating plate (12);
- said each third U-shaped boss (122) has a rotating-pin through hole arranged there-through;
- another end of the connecting rod (5) away from the vertical plate is entrenched in a space between the two third U-shaped bosses (122);
- a rotating pin runs through the rotating-pin through holes of the two third U-shaped bosses (122) and the through hole on the end of the connecting rod (5) away from the vertical plate to form a rotating pair;
- the driving wheel (4), the connecting rod (5), the wave-generating plate (12), the first cylinder push rod (10), and the second cylinder push rod (11) satisfy the following condition:
- on a plane where the driving wheel (4) is located, denoting a central axis of the driving wheel (4) as A, denoting a central axis of the boss on the driving wheel (4) as B, denoting a central axis of the hinged connection between the connecting rod (5) and the wave-generating plate (12) as C, and denoting a central axis of the hinged connection between either the first or the second hydraulic cylinder push rod (10, 11) and the wave-generating plate (12) as D, then AB is always shortest among AB, BC, CD, and AD, and a sum of AB with a longest among BC, CD, and AD is not less than a sum of other two from BC, CD, and AD excluding said longest.