CN212935797U

CN212935797U - Anti-rotation mechanism for piston of actuator

Info

Publication number: CN212935797U
Application number: CN202021236288.XU
Authority: CN
Inventors: 李伟蒙; 杨粲然; 程永全; 宋学东
Original assignee: Jinan Youjin Machinery Equipment Co ltd
Current assignee: Jinan Youjin Machinery Equipment Co ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2021-04-09
Anticipated expiration: 2030-06-29

Abstract

The utility model relates to an actuator accessory field, concretely relates to mechanism is prevented changeing by actuator piston. Prevent changeing the guide pin bushing including actuator body and piston, the actuator includes the piston, the piston both sides are provided with direction support post, direction support post lower extreme fixed connection is on the actuator body, direction support post upper end is provided with the installation crossbeam, be provided with displacement sensor on the installation crossbeam, displacement sensor is located directly over the piston, the centre anchor clamps connecting hole that is used for sectional fixture is offered to the piston top, still be provided with the spacing groove on the piston, the piston is prevented to be provided with spacing hole and guiding hole on the transduction cover, spacing hole is fixed at spacing inslot, one of them the direction support post is located the guiding hole. The device is arranged at the rear end of the actuator, and has little interference on the installation environment of the actuator; the anti-rotation guide sleeve of the actuator piston is matched with the guide and support upright post by adopting a circular structure, so that the abrasion life is longer.

Description

Anti-rotation mechanism for piston of actuator

Technical Field

The utility model relates to an actuator accessory field, concretely relates to mechanism is prevented changeing by actuator piston.

Background

The actuator is used for applying control force to the control object according to the determined control rule. With the development of active vibration control technology, the requirements for actuators are becoming higher and higher. In recent years, on the basis of conventional fluid actuators, gas actuators, and electric actuators, various intelligent actuators, such as piezoelectric ceramic actuators, piezoelectric thin film actuators, electrostrictive actuators, magnetostrictive actuators, shape memory alloy actuators, servo actuators, and electrorheological fluid actuators, have been developed. The advent of these actuators provides the necessary conditions for achieving high precision active control of vibrations.

The anti-rotation mechanism of the piston of the actuator is not installed in the prior art, the starting actuator is mostly adopted, the piston is operated, the piston is manually rotated to a proper position, the sample is installed again, the test is carried out, and the position of the piston is adjusted before the test at each time basically. The anti-rotation mechanism installed at the front end of the actuator is generally adopted in the prior art, however, the anti-rotation mechanism is installed at the front end of the actuator due to the fact that the front end of the actuator is used for installing a sample and a tool clamp, and the use environment of the actuator can be limited.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned not enough, the utility model provides an actuator piston prevents that favourable turn constructs.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides an actuator piston prevents that favourable turn constructs, prevents changeing the guide pin bushing including actuator body and piston, the actuator includes the piston, the piston both sides are provided with direction support post, direction support post lower extreme fixed connection is on the actuator body, direction support post upper end is provided with the installation crossbeam, be provided with displacement sensor on the installation crossbeam, displacement sensor is located directly over the piston, the centre anchor clamps connecting hole that is used for sectional fixture that offers in the piston top, still be provided with the spacing groove on the piston, the piston prevents that favourable turn is sheathe in and is provided with spacing hole and guiding hole, spacing hole is fixed at spacing inslot, one of them direction support post is located the guiding hole.

As an optimization, the piston anti-rotation guide sleeve comprises a first guide sleeve flap and a second guide sleeve flap, one end of the first guide sleeve flap is hinged to one end of the second guide sleeve flap, the other end of the first guide sleeve flap is provided with a bolt connecting piece, and the two bolt connecting pieces are fixedly connected through a fastening bolt, so that the piston anti-rotation guide sleeve is convenient to mount.

Preferably, an anti-slip ring is arranged in the limiting groove, and a plurality of anti-slip lines with the same line as the movement direction of the piston are arranged on the anti-slip ring.

Preferably, the limiting hole is internally provided with an anti-skidding groove capable of being meshed with the anti-skidding ring.

The anti-skidding groove and the anti-skidding lines are arranged, so that the anti-skidding effect can be achieved, the fastening effect can be achieved, and the piston is prevented from rotating.

Preferably, the anti-slip ring is made of rubber. The rubber material has certain elasticity, and antiskid effect and fastening effect are better.

Preferably, a rubber gasket is arranged at the joint of the fastening bolt. The arrangement of the rubber gasket enables the piston anti-rotation guide sleeve to be fixed on the piston more tightly.

The utility model provides a pair of actuator piston prevents that favourable effect of favourable effect is:

1. the structure is simple, and the operation is reliable;

2. the device is arranged at the rear end of the actuator, and has little interference on the installation environment of the actuator;

3. the anti-rotation guide sleeve of the actuator piston is matched with the guide and support upright post by adopting a circular structure, and the contact department is an arc surface instead of a line, so that the abrasion life is longer.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic sectional view of the structure of the present invention;

fig. 3 is the installation schematic diagram of the anti-rotation guide sleeve of the piston of the utility model.

The device comprises a mounting beam 1, a mounting beam 2, a displacement sensor 3, a guide supporting upright post 4, an actuator piston 5, an actuator body 6, a fastening screw 7, a piston anti-rotation guide sleeve 401, a clamp connecting hole 402, a limiting groove 403, an anti-slip ring 701, a first guide sleeve flap 702, a second guide sleeve flap 703, a limiting hole 704, a guide hole 705 and an anti-slip groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. 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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present 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 should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

As shown in fig. 1-2, actuator piston prevents that favourable turn constructs, including actuator body 5 and piston prevent changeing guide pin bushing 7, the actuator includes the piston, the piston both sides are provided with

direction support post

3, 3 lower extreme fixed connection of direction support post are on

actuator body

5, 3 upper ends of direction support post are provided with installation crossbeam 1, be provided with displacement sensor 2 on the installation crossbeam 1, displacement sensor 2 is located directly over the piston, the centre anchor clamps connecting hole 401 that is used for sectional fixture that offers in the piston top, still be provided with spacing groove 402 on the piston, be provided with spacing hole 703 and guiding hole 704 on the piston prevent changeing guide pin bushing 7, spacing hole 703 is fixed in spacing groove 402, one of them direction support post 3 is located guiding hole 704.

In this embodiment, the piston anti-rotation guide sleeve 7 includes a first guide sleeve lobe 701 and a second guide sleeve lobe 702, one end of the first guide sleeve lobe 701 is hinged to one end of the second guide sleeve lobe 702, and the other end of the first guide sleeve lobe 701 is provided with a bolt connecting piece, and the two bolt connecting pieces are fixedly connected through a fastening bolt, so that the installation of the piston anti-rotation guide sleeve 7 is facilitated.

In this embodiment, an anti-slip ring 403 is disposed in the limiting groove 402, and a plurality of anti-slip patterns having the same pattern as the moving direction of the piston are disposed on the anti-slip ring 403.

In this embodiment, the limiting hole 703 is provided with an anti-slip groove 705 capable of engaging with the anti-slip ring 403.

The anti-slip groove 705 and the anti-slip threads can not only play a role in anti-slip, but also play a role in fastening, and the piston is prevented from rotating.

In this embodiment, the anti-slip ring 403 is made of rubber. The rubber material has certain elasticity, and antiskid effect and fastening effect are better.

In this embodiment, the joint of the fastening bolt is provided with a rubber gasket. The rubber gasket is arranged so that the piston anti-rotation guide sleeve 7 can be fixed on the piston more tightly.

The working principle is as follows: the utility model provides a pair of actuator piston 4 prevents favourable turn, the operation in-process of actuator, because high-speed high-frequency's reciprocating motion, the piston can be involuntary rotates for the cylinder body, has the actuator that the relative position required to require to install in the frock clamp of piston front end, just must require the piston best to carrying out reciprocal linear motion, and do not accompany and take rotary motion. The utility model discloses prevent actuator piston 4 pivoted mechanism, loosen fastening screw 6, actuator piston 4 prevents changeing guide pin bushing and piston separation, with the position of piston rotation to requirement, prevent changeing guide pin bushing 7 with the piston and install in the spacing groove 402 of piston upper end, tighten fastening screw 6, when the piston moves once more, the guide pin bushing 7 can be along with the piston motion together, the guiding hole 704 of the other end of guide pin bushing 7 is prevented changeing by the piston moves along direction support post 3, actuator piston 4 prevents changeing the purpose.

The above embodiments are only specific cases of the present invention, and the protection scope of the present invention includes but is not limited to the forms and styles of the above embodiments, and any suitable changes or modifications made thereto by those skilled in the art according to the claims of the present invention shall fall within the protection scope of the present invention.

Claims

1. The utility model provides an actuator piston prevents that favourable turn constructs which characterized in that: prevent changeing the guide pin bushing including actuator body and piston, the actuator includes the piston, the piston both sides are provided with direction support post, direction support post lower extreme fixed connection is on the actuator body, direction support post upper end is provided with the installation crossbeam, be provided with displacement sensor on the installation crossbeam, displacement sensor is located directly over the piston, the centre anchor clamps connecting hole that is used for sectional fixture is offered to the piston top, still be provided with the spacing groove on the piston, the piston is prevented to be provided with spacing hole and guiding hole on the transduction cover, spacing hole is fixed at spacing inslot, one of them the direction support post is located the guiding hole.

2. An actuator piston anti-rotation mechanism according to claim 1, characterized in that: the piston anti-rotation guide sleeve comprises a first guide sleeve flap and a second guide sleeve flap, one end of the first guide sleeve flap is hinged to one end of the second guide sleeve flap, the other end of the first guide sleeve flap is provided with a bolt connecting piece, and the bolt connecting pieces are fixedly connected through fastening bolts.

3. An actuator piston anti-rotation mechanism according to claim 2, characterized in that: and an anti-slip ring is arranged in the limiting groove, and a plurality of anti-slip lines with the same line as the movement direction of the piston are arranged on the anti-slip ring.

4. An actuator piston anti-rotation mechanism according to claim 3, characterized in that: and an anti-skidding groove capable of being meshed with the anti-skidding ring is arranged in the limiting hole.

5. An actuator piston anti-rotation mechanism according to claim 4, characterized in that: the anti-slip ring is made of rubber.

6. An actuator piston anti-rotation mechanism according to claim 5, characterized in that: and a rubber gasket is arranged at the joint of the fastening bolt.