CN203348207U - Movable blade swinging hydraulic oil cylinder - Google Patents

Abstract

A movable vane swing hydraulic cylinder, comprising a rotor (1) and a stator (2), the outer wall of the rotor (1) is provided with rotor blade supports (8) distributed along the axial direction, two rotor blade supports (8) There are rotor blade grooves (5) between them, and rotor blades (3) are installed in the rotor blade grooves (5), and stator blade supports (9) distributed along the axial direction are arranged on the inner circumference of the stator (2). There are stator blade slots (6) between the blade supports (9), and stator blades (4) are installed in the stator blade slots (6), and the outer end surface of the rotor blade (3) close to the inner wall of the stator (2) and the stator (2) The utility model has a compact structure, the stator blades and rotor blades can be easily disassembled and replaced, the sealing effect is good, the torque output is stable, and the controllability is good. It can be widely used in various metallurgical machinery, petrochemical machinery, Aircraft wing steering gear and ship steering mechanism and other fields.

Description

A movable vane swing hydraulic cylinder

technical field

The utility model relates to a hydraulic swing cylinder, in particular to a movable vane swing hydraulic oil cylinder, which belongs to the technical field of hydraulic equipment. the

Background technique

The vane-type swing hydraulic cylinder can convert hydraulic pressure into torque, and has the advantages of compact structure, high mechanical efficiency, stable torque output, good controllability, and is not easy to be invaded by external dust. The vane isolates the oil cylinder into a high-pressure chamber and a low-pressure chamber, and uses the difference in hydraulic pressure acting on the blades from the high-pressure and low-pressure chambers to drive the rotor blades and rotors to rotate and output torque; changing the direction of the hydraulic oil can change the high- and low-pressure chambers, Rotate the rotor in reverse. The sealing effect of the vane is the key to determine the performance of the vane swing hydraulic cylinder. In the traditional fixed vane swing hydraulic cylinder, the stator vanes are connected to the stator as a whole, and the rotor vanes are connected to the rotor as a whole, the sealing effect of the vanes is poor, and the installation and replacement of the vane seals are not very convenient.

For example, the Chinese patent authorization publication number is: CN201246363Y, and the announcement date is: On May 27, 2009, the utility model patent discloses a blade swing type hydraulic cylinder, which has a cylinder body, and end covers are provided at both ends of the cylinder body. The swing output shaft is provided in the cylinder body, the swing output shaft head is provided at both ends of the swing output shaft, the swing output shaft head is connected with the end cover, the swing output shaft is provided with blades, the cylinder body and the swing output shaft A fixed shaft is arranged between them, and an oil port is arranged on the end cover, and the oil port is arranged between one side of the fixed shaft and the blade, and the oil port is arranged between the other side of the fixed shaft and the blade. However, the device has a single structure, the stator blades are integrally connected with the stator, the rotor blades are integrally connected with the rotor, the stator blades and the rotor blades cannot be disassembled and replaced, and the sealing effect is not good. the

Contents of the invention

The purpose of this utility model is to provide a compact structure, the stator blade and rotor blade can be easily disassembled and Replacement, a movable blade swing hydraulic cylinder with good sealing effect, stable torque output and good controllability.

In order to achieve the above object, the technical solution of the utility model is: a movable vane swing hydraulic cylinder, including a rotor and a stator, a cover plate is installed on the annular outer ring between the rotor and the stator, and the outer wall of the rotor is provided with a Axially distributed rotor blade supports, there is a rotor blade slot between the two rotor blade supports, rotor blades are installed in the rotor blade slots, and stator blade supports distributed along the axial direction are arranged on the inner circumference of the stator, and the two stator blade supports There are stator vane slots between them, and stator vanes are installed in the stator vane slots. The outer end surfaces of the rotor blades close to the inner side wall of the stator cooperate with the inner side wall of the stator, and the end surfaces of the stator blades near the outer side wall of the rotor match with the outer side wall of the rotor.

3-8 rotor blade supports are evenly arranged on the outer peripheral side wall of the rotor, and 3-8 stator blade supports are evenly arranged on the inner side wall of the stator.

The lengths of the rotor blades and the stator blades along the axial direction of the rotor are equal.

The length of the rotor blade along the rotor axial direction is less than or equal to the depth of the rotor blade groove, and the length of the rotor blade along the rotor radial direction is greater than or equal to the length of the rotor blade support.

The length of the stator blade along the axial direction of the stator is less than or equal to the depth of the groove of the stator blade, and the length of the stator blade along the radial direction of the stator is greater than the length of the support of the stator blade.

The surfaces of the rotor blades and the stator blades are covered with seals respectively.

The beneficial effects of the utility model are:

1. The outer wall of the rotor of the utility model is provided with a rotor blade support, and the rotor blade is placed in the rotor blade groove, and the stator blade support is arranged on the inner circumference of the stator, and the stator blade groove opened in the stator blade support is placed. When the stator blade needs to be repaired or replaced, the blade can be directly pulled out from the blade groove conveniently.

2. The utility model has a compact structure, the stator blades and rotor blades can be easily disassembled and replaced, the sealing effect is good, the torque output is stable, and the controllability is good. It can be widely used in various metallurgical machinery, petrochemical machinery, and aircraft wing rudders. machine and ship steering mechanism and other fields.

Description of drawings

Fig. 1 is a schematic diagram of the external structure of the utility model.

Fig. 2 is a structural schematic diagram of the utility model after the cover plate 7 is opened.

Fig. 3 is a structural schematic diagram of the utility model when the rotor blade 3 and the stator blade 4 are pulled out.

Fig. 4 is a structural diagram of the utility model after the rotor blade 3 and the stator blade 4 are drawn out.

In the figure: rotor 1, stator 2, rotor blade 3, stator blade 4, rotor blade groove 5, stator blade groove 6, cover plate 7, rotor blade support 8, stator blade support 9.

Detailed ways

The utility model will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. the

Referring to Fig. 1 to Fig. 4, a movable vane swing hydraulic cylinder of the present invention includes a rotor 1 and a stator 2, and a cover plate 7 is installed on the annular outer ring between the rotor 1 and the stator 2, and the outer wall of the rotor 1 There are rotor blade supports 8 distributed in the axial direction, there are rotor blade slots 5 between the two rotor blade supports 8, rotor blades 3 are installed in the rotor blade slots 5, and the inner circumference of the stator 2 is provided with axially distributed Stator vane supports 9, there are stator vane slots 6 between the two stator vane supports 9, stator vanes 4 are installed in the stator vane slots 6, and the outer end surface of the rotor vanes 3 close to the inner side wall of the stator 2 matches with the inner side wall of the stator 2, The end surfaces of the stator vanes 4 close to the outer wall of the rotor 1 are matched with the outer wall of the rotor 1 .

3-8 rotor blade supports 8 are evenly arranged on the outer peripheral side wall of the rotor 1 , and 3-8 stator blade supports 9 are evenly arranged on the inner wall of the stator 2 .

The lengths of the rotor blades 3 and the stator blades 4 along the axial direction of the rotor 1 are equal.

The length of the rotor blade 3 along the axial direction of the rotor 1 is less than or equal to the depth of the rotor blade groove 5 , and the length of the rotor blade 3 along the radial direction of the rotor 1 is greater than or equal to the length of the rotor blade support 8 .

The length of the stator blade 4 along the axial direction of the stator 2 is less than or equal to the depth of the stator blade groove 6 , and the length of the stator blade 4 along the radial direction of the stator 2 is greater than the length of the stator blade support 9 .

The surfaces of the rotor blades 3 and the stator blades 4 are covered with seals respectively.

Referring to FIG. 1 and FIG. 2 , a rotor 1 is arranged at the axial center of the stator 2 , and a cover plate 7 is installed on the annular outer ring between the rotor 1 and the stator 2 . Rotor blade supports 8 distributed along the axial direction are arranged on the outer wall of the rotor 1 , and 3-8 rotor blade supports 8 are uniformly arranged on the outer peripheral side wall of the rotor 1 . A rotor blade slot 5 is opened at the center of the end of the rotor blade support 8 , and the rotor blade slot 5 is used for accommodating the rotor blade 3 , and the rotor blade slot 5 is installed with the rotor blade 3 . When the stator and rotor blades 3 need to be repaired or replaced, the rotor blades 3 can be directly pulled out from the rotor blade slots 5 conveniently. The length of the rotor blade 3 along the axial direction of the rotor 1 is less than or equal to the depth of the rotor blade groove 5 , and the length of the rotor blade 3 along the radial direction of the rotor 1 is greater than or equal to the length of the rotor blade support 8 .

The inner circumference of the stator 2 is provided with stator blade supports 9 distributed along the axial direction, and 3-8 stator blade supports 9 are evenly provided on the inner wall of the stator 2 . The stator vane support 9 is provided with a stator vane slot 6, and the stator vane 4 is installed in the stator vane slot 6, and the stator vane slot 6 plays the role of placing the stator vane 4, and can prevent the stator vane 4 from coming off. When the stator blade 4 needs to be repaired or replaced, the stator blade 4 can be directly pulled out from the stator blade slot 6 conveniently. Conveniently, the length of the stator blade 4 along the axial direction of the stator 2 is less than or equal to the depth of the stator blade groove 6, and the length of the stator blade 4 along the radial direction of the stator 2 is greater than the length of the stator blade support 9, so that the inner diameter of the stator blade 4 can be guaranteed. The sides are located on the outside of the stator blade support 9 .

The outer end surface of the rotor blade 3 close to the inner side wall of the stator 2 is matched with the inner side wall of the stator 2 , and the end surface of the stator blade 4 close to the outer side wall of the rotor 1 is matched with the outer side wall of the rotor 1 . The lengths of the rotor blades 3 and the stator blades 4 along the axial direction of the rotor 1 are equal. In order to improve the sealing performance, the surfaces of the rotor blade 3 and the stator blade 4 are covered with seals, so that the tightness of the seal between the rotor blade 3 and the inner wall of the stator 2 and the tightness of the seal between the stator blade 4 and the outer wall of the rotor 1 can be achieved. close. The utility model solves the defects that the stator blades and rotor blades of the existing swing hydraulic oil cylinder are not easy to disassemble and replace, and the blade sealing effect is poor. The utility model adopts movable and detachable rotor blades 3 and stator blades 4, which can not only be easily taken It can be repaired and replaced, and the sealing effect is improved, it is not easy to be invaded by external dust, the torque output is stable, and the controllability is good. It can be widely used in various metallurgical machinery, petrochemical machinery, aircraft wing steering gear and ship steering mechanism. the

Claims (6)

1. A movable vane swing hydraulic cylinder, including a rotor (1) and a stator (2), and a cover plate (7) is installed on the annular outer ring between the rotor (1) and the stator (2), characterized in that: the The outer wall of the rotor (1) is provided with rotor blade supports (8) distributed along the axial direction, there is a rotor blade slot (5) between the two rotor blade supports (8), and rotor blades are installed in the rotor blade slots (5) (3), the inner circumference of the stator (2) is provided with stator vane supports (9) distributed along the axial direction, and there are stator vane slots (6) between the two stator vane supports (9), and the stator vane slots (6) Stator blades (4) are installed inside, the outer end surface of the rotor blade (3) close to the inner side wall of the stator (2) matches the inner side wall of the stator (2), and the end surface of the stator blade (4) close to the outer side wall of the rotor (1) matches with the The outer side wall of the rotor (1) matches. 2. A movable blade swing hydraulic cylinder according to claim 1, characterized in that 3-8 rotor blade supports (8) are evenly arranged on the outer peripheral side wall of the rotor (1), and the stator (2 3-8 stator blade supports (9) are evenly arranged on the inner wall of ). 3 . The movable vane swing hydraulic cylinder according to claim 1 , characterized in that: the lengths of the rotor vane ( 3 ) and the stator vane ( 4 ) along the axial direction of the rotor ( 1 ) are equal. 4 . 4. A movable blade swing hydraulic cylinder according to claim 1, characterized in that: the length of the rotor blade (3) along the axial direction of the rotor (1) is less than or equal to the depth of the rotor blade groove (5), The length of the rotor blade (3) in the radial direction of the rotor (1) is greater than or equal to the length of the rotor blade support (8). 5. A movable vane swing hydraulic cylinder according to claim 1, characterized in that: the length of the stator vane (4) along the axial direction of the stator (2) is less than or equal to the depth of the stator vane groove (6), The length of the stator blade (4) along the radial direction of the stator (2) is greater than the length of the stator blade support (9). 6 . The movable vane swing hydraulic cylinder according to claim 1 , characterized in that: the surfaces of the rotor vane ( 3 ) and the stator vane ( 4 ) are covered with seals respectively. 7 .

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