CN214999178U

CN214999178U - Directional rotating mechanism

Info

Publication number: CN214999178U
Application number: CN202120930434.7U
Authority: CN
Inventors: 穆永涛; 马旭轮; 张基明; 李桂菊; 刘永亮; 景琰; 崔文豪
Original assignee: 713th Research Institute of CSIC
Current assignee: 713th Research Institute of CSIC
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2021-12-03
Anticipated expiration: 2031-04-30

Abstract

The utility model provides a directional rotary mechanism, which comprises a rotating shaft, fixed connection uide pin on the rotation axis, the rotation axis overcoat is equipped with the casing, both ends set up guide block I and guide block II respectively about the casing is inside, the rotation axis passes guide block I and guide block II, and be located between guide block I and the guide block II, be equipped with reset spring between uide pin and the guide block, the tip that guide block I and guide block II are close to the uide pin is provided with uide pin draw-in groove and direction profile respectively, the uide pin draw-in groove of guide block I and guide block II does not correspond. The utility model discloses can rely on simple mechanism to turn into periodic rotation with reciprocating linear motion, simple structure, reliable operation, required power accessible motor, pneumatic cylinder, manual, with multiple modes such as the relative motion of other spare parts provide, can use in a flexible way in mechanical equipment as required.

Description

Directional rotating mechanism

Technical Field

The utility model belongs to the technical field of mechanical structure, concretely relates to directional rotary mechanism.

Background

In various mechanical devices, it is often necessary to perform functions such as locking, unlocking, triggering a linkage member, etc., by means of a small-amplitude rotational movement. At present, a common rotary driving mode generally needs a motor, a rotary hydraulic cylinder and other driving equipment to be matched with a transmission mechanism, or is realized through a connecting rod, a gear rack and other mechanisms, and can occupy more space; in addition, the rotary motion can be realized by some simple mechanisms, but the precision cannot be guaranteed. In order to realize the rotary motion in a limited space, a novel rotary mechanism needs to be designed.

SUMMERY OF THE UTILITY MODEL

The utility model provides a directional rotary mechanism can turn into periodic rotary motion with straight reciprocating motion.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a directional rotary mechanism, which comprises a rotating shaft, fixed connection uide pin on the rotation axis, the rotation axis overcoat is equipped with the casing, both ends set up guide block I and guide block II respectively about the casing is inside, the rotation axis passes guide block I and guide block II, and be located between guide block I and the guide block II, be equipped with reset spring between uide pin and the guide block, the tip that guide block I and guide block II are close to the uide pin is provided with uide pin draw-in groove and direction profile respectively, the uide pin draw-in groove of guide block I and guide block II does not correspond.

The upper end of the rotating shaft is provided with a pull ring.

At least one group of guide pin clamping grooves and guide molded surfaces are arranged at the end part of the guide block and are repeatedly arranged along the circumferential direction, and the number of the repeated groups of the guide pin clamping grooves and the guide molded surfaces corresponds to the number of the guide pins.

The lower end of the rotating shaft is connected with a locking mechanism.

The utility model discloses can rely on simple mechanism to turn into periodic rotation with reciprocating linear motion, simple structure, reliable operation, required power accessible motor, pneumatic cylinder, manual, with multiple modes such as the relative motion of other spare parts provide, can use in a flexible way in mechanical equipment as required.

Drawings

Fig. 1 is a schematic diagram of the structure explosion of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is a schematic structural diagram of the guide block of the present invention.

In the figure: 1. the device comprises a pull ring, 2 parts of a guide block I, 3 parts of a return spring, 4 parts of a guide pin, 5 parts of a shaft, 6 parts of a guide block II, 7 parts of a shell, 8 parts of a guide pin clamping groove, 9 parts of a guide molded surface and 10 parts of a locking mechanism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work all belong to the protection scope of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

As shown in fig. 1-3, a directional rotating mechanism comprises a rotating shaft 5, a guide pin 4 is fixedly connected to the rotating shaft 5, a housing 7 is sleeved outside the rotating shaft 5, a guide block i 2 and a guide block ii 6 are respectively arranged at the upper end and the lower end inside the housing 7, the rotating shaft 5 passes through the guide block i 2 and the guide block ii 6 and is positioned between the guide block i 2 and the guide block ii 6, a return spring 3 is arranged between the guide pin 4 and the guide block, guide pin slots 8 and guide profiles are respectively arranged at the ends of the guide block i 2 and the guide block ii 6 close to the guide pin 4, the guide pin slots 8 of the guide block i 2 and the guide block ii 6 do not correspond to each other, at least one set of the guide pin slots 8 and the guide profiles 9 at the ends of the guide blocks is provided, four sets of guide pin slots 8 and guide profiles 9 are shown in a repeating unit in fig. 1 and are arranged along the circumferential direction, four guide pins 4 are arranged at intervals of 90 degrees along the circumferential direction, the guide pin clamping grooves 8 have the same angle and the same number with the guide pins 4 and are matched with each other.

This angular separation is not exclusive and may be 90 °, or may be 30 °, 36 °, 45 °, 60 °, 120 °, or any angular arrangement between 0 and 360 °.

In order to apply the pulling force to the rotating shaft 5 conveniently, the pull ring 1 is arranged at the upper end of the rotating shaft 5.

The directional rotating mechanism can be used in cooperation with other mechanisms, for example, the lower end of the rotating shaft 5 is connected with the locking mechanism 10, so that the functions of locking, unlocking, triggering linkage parts and the like are realized.

The directional rotating mechanism can convert the input reciprocating motion into periodic rotating motion, and the working condition of a single period is as follows: when the device is actually used, the shell 7 is fixed on other structural components, when tension is applied to the pull ring 1, the rotating shaft axially moves along the tension direction until the guide pin 4 is contacted with the guide block I2, the axial movement is blocked, and the rotating shaft 5 is driven to rotate for a certain angle under the guidance of the guide molded surface at the end part of the guide block I2; after the application of the pulling force is stopped, the return spring 3 pushes the rotating shaft 5 to perform axial movement in the opposite direction until the guide pin 4 is contacted with the guide block II 6, and the rotating shaft 5 is driven to rotate again in the same direction by a certain angle under the guidance of the guide profile 9 at the end part of the guide block II 6, wherein the angle can be the same as the previous angle or different from the previous angle and depends on the spacing angle between the guide block I2 and the guide pin clamping groove 8 on the guide block II 6 and the included angle between the guide pin and the guide pin clamping groove 8 on the guide block II 6; the rotation can also be avoided, namely the reset spring 3 pushes the rotating shaft 5 to perform axial motion in the opposite direction after the application of the pulling force is stopped until the guide pin 4 is contacted with the guide block II 6, and at the moment, the guide pin is just contacted with the guide pin clamping groove 8 on the guide block II 6, so that the positioning is realized.

The above operation is repeated until the rotary shaft returns to the initial position, and thereafter, if the rotary shaft moves forward again, the next cycle of rotation is entered.

The utility model discloses can rely on simple mechanism to turn into periodic rotation with reciprocating motion, simple structure, reliable operation, required power accessible motor, pneumatic cylinder, manual, with multiple modes such as the relative motion of other spare parts provide, can use in a flexible way in mechanical equipment as required.

Claims

1. A directional rotation mechanism, characterized by: including the rotation axis, fixed connection uide pin on the rotation axis, the rotation axis overcoat is equipped with the casing, both ends set up guide block I and guide block II respectively about the casing is inside, the rotation axis passes guide block I and guide block II, and be located between guide block I and the guide block II, be equipped with reset spring between uide pin and the guide block, the tip that guide block I and guide block II are close to the uide pin is provided with uide pin draw-in groove and direction profile respectively, the uide pin draw-in groove of guide block I and guide block II does not correspond.

2. The directional rotation mechanism of claim 1, wherein: the upper end of the rotating shaft is provided with a pull ring.

3. The directional rotation mechanism of claim 1, wherein: at least one group of guide pin clamping grooves and guide molded surfaces are arranged at the end part of the guide block and are repeatedly arranged along the circumferential direction, and the number of the repeated groups of the guide pin clamping grooves and the guide molded surfaces corresponds to the number of the guide pins.

4. The directional rotation mechanism of claim 1, wherein: the lower end of the rotating shaft is connected with a locking mechanism.