阅读说明：本技术 位置测量系统及作动系统 (Position measuring system and actuating system ) 是由 程继金 边利建 曹立新 任乐江 于开泉 杨磊 朱海天 黄烈春 刘少雄 阮文新 于 2019-11-22 设计创作，主要内容包括：本发明公开了一种位置测量系统,包括位置感应端,连接活塞杆,能够随活塞杆一起沿活塞杆的轴向运动；位置测量端,与缸体连接,用于测量与位置感应端之间的距离；导正装置,连接位置感应端与活塞杆,能够使得位置感应端相对于活塞杆转动；应用本发明的位置测量系统,能够有效减少位置感应端的磨损,本发明还提供了一种作动系统。(The invention discloses a position measuring system, which comprises a position sensing end, a position sensing end and a position sensing end, wherein the position sensing end is connected with a piston rod and can move along the axial direction of the piston rod along with the piston rod; the position measuring end is connected with the cylinder body and used for measuring the distance between the position measuring end and the position sensing end; the guide device is connected with the position sensing end and the piston rod and can enable the position sensing end to rotate relative to the piston rod; the position measuring system can effectively reduce the abrasion of the position sensing end, and the invention also provides an actuating system.)

1. A position measurement system, comprising:

the position sensing end (220) is connected with the piston rod (120) and can move along the axial direction of the piston rod (120) along with the piston rod (120);

the position measuring end (210) is connected with the cylinder body (110) and is used for measuring the distance between the position measuring end and the position sensing end (220);

the guide device (300) is connected with the position sensing end (220) and the piston rod (120) and can enable the position sensing end (220) to rotate relative to the piston rod (120).

2. Position measuring system according to claim 1, characterized in that the pilot device (300) comprises:

a fixing portion (310) fixedly connected to the piston rod (120);

a second sliding groove (320) which is arranged on one side of the fixing part (310) far away from the fixing position of the fixing part (310) and the piston rod (120);

a second slider (330) in sliding engagement with the second runner (320);

the second sliding block (330) is used for being fixedly connected with the position sensing end (220).

3. The position measurement system according to claim 2, wherein a first throat structure is provided at an opening of the second chute (320), and the first throat structure is used for preventing the second slider (330) from being pulled out of the second chute (320).

4. Position measuring system according to claim 2, characterized in that the second runner (320) extends along a circular or arc-shaped trajectory, the centre of which coincides with the central axis of the piston rod (120).

5. The position measurement system according to claim 2, wherein the pilot device (300) further comprises a connection block (340), a first end of the connection block (340) being connected to the first slider (230), a second end of the connection block (340) being connected to the second slider (330).

6. The position measurement system of claim 5, wherein a plurality of said first sliders (230) are connected to said first end of said connection block (340).

7. The position measurement system of claim 5, wherein the pilot device (300) further comprises a sliding plate (360), the sliding plate (360) connecting the first slider (230) to the connecting hole.

8. The position measuring system according to claim 7, characterized in that the guiding device (300) further comprises a protective cover (350), the protective cover (350) is buckled on the second sliding groove (320), an opening is arranged on the protective cover (350), and the connecting block (340) is arranged through the opening.

9. Position measuring system according to claim 8, characterized in that the side of the opening facing away from the second runner (320) is provided with a second constriction which prevents the connecting piece (340) from being pulled out.

10. An actuating system comprising the position measuring system of claim 1, and further comprising a ram (100), the ram (100) comprising a cylinder (110) and a piston rod (120) sliding in the cylinder (110).

Technical Field

The invention relates to the field of servo actuating systems, in particular to a position measuring system and an actuating system with the same.

Background

In the existing flight simulator actuator cylinder, a piston rod of the existing flight simulator actuator cylinder not only needs to do telescopic motion, but also needs to do rotary motion relative to the axial direction of a cylinder body, so that a traditional flight simulator actuator cylinder position sensor mechanism is selectively arranged at the axis position in the cylinder body; because the piston rod can produce a large amount of heats in the flexible process, the position sensor who is located the pressurized strut inside can produce the temperature rise, has caused the position sensor fault rate to improve.

Therefore, the prior art proposes a position sensor for an actuator cylinder, which is located outside a cylinder body of the actuator cylinder, and a position sensing end corresponding to the position sensor is fixedly connected with a piston rod; because the piston rod of the flight simulator actuating cylinder can not only stretch out and draw back in the cylinder body, but also rotate, the position sensing end part can generate eccentric friction with the track under the action of the rotation of the piston rod, and the measurement is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a position measuring system and an actuating system with the same, which can reduce the eccentric sliding of a position sensing end when a piston rod rotates.

According to a first aspect of the present invention, a position measurement system comprises: the position sensing end is connected with the piston rod and can move along the axial direction of the piston rod along with the piston rod; the position measuring end is connected with the cylinder body and used for measuring the distance between the position measuring end and the position sensing end; the guide device is connected with the position sensing end and the piston rod, and the position sensing end can rotate relative to the piston rod.

Further, the pilot device includes: the fixing part is used for being fixedly connected with the piston rod; the second sliding chute is arranged on one side of the fixing part, which is far away from the fixing position of the fixing part and the piston rod; the second sliding block is positioned in the second sliding groove and can slide along the extending direction of the second sliding groove; the second slider is used for being fixedly connected with the position sensing end.

Furthermore, a first necking structure is arranged at the opening of the second sliding groove and used for preventing the second sliding block from being separated from the second sliding groove.

Furthermore, the second sliding groove extends along a circular or arc-shaped track, and the circle center of the circular or arc-shaped track is overlapped with the central shaft of the piston rod.

Further, the guide device further comprises a connecting block, the first end of the connecting block is connected with the first sliding block, and the second end of the connecting block is connected with the second sliding block.

Further, a plurality of first sliding blocks are connected to the first end of the connecting block.

Furthermore, the guiding device also comprises a sliding plate, and the sliding plate is connected with the first sliding block in the connecting hole.

Further, lead just device and still include the safety cover, the safety cover lock is provided with the opening on the safety cover on the second spout, and the connecting block passes the opening setting.

Further, one side that the opening kept away from the second spout is provided with the second throat structure, and the second throat structure can prevent the connecting block and deviate from.

According to another aspect of the invention, an actuating system includes the position measuring system described above, and further includes an actuator cylinder including a cylinder and a piston rod that slides in the cylinder.

By applying the position measuring system, the position sensing end can rotate relative to the piston rod, and when the piston rod slides and rotates, the correcting device can automatically correct the sliding track of the position sensing end towards the sliding track of the piston rod while driving the sliding of the position sensing end, so that the eccentric sliding of the position sensor is reduced, and the abrasion of the position sensor is effectively reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is an isometric view of an actuation system according to an embodiment of the present invention;

FIG. 2 is a top view of the actuation system of the present invention;

FIG. 3 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 4 is an isometric view of a pilot in an embodiment of the invention;

FIG. 5 is a bottom view of a polarization device in an embodiment of the present invention;

FIG. 6 is a cross-sectional view taken in the direction B-B in FIG. 5;

fig. 7 is an enlarged view at a in fig. 6.

The figures contain the following reference numerals:

reference numerals	Name (R)
		100	Actuating cylinder
110	Cylinder body
		120	Piston rod
200	Position sensing system
		210	Position measuring terminal
220	Position sensing terminal
		230	First slide block
240	First chute
		250	First connecting rod
260	Second connecting rod
		270	Positioning assembly
300	Guide device
		310	Fixing part
320	Second chute
		330	Second slide block
340	Connecting block
		350	Protective cover
360	Sliding plate

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.