CN216895499U

CN216895499U - Spring anti-flying-out structure of single-action straight stroke actuator

Info

Publication number: CN216895499U
Application number: CN202220530423.4U
Authority: CN
Inventors: 何甜庭; 万洋
Original assignee: Wuxi Shenghansi Automation Engineering Co ltd
Current assignee: Wuxi Shenghansi Automation Engineering Co ltd
Priority date: 2022-03-12
Filing date: 2022-03-12
Publication date: 2022-07-05
Anticipated expiration: 2032-03-12

Abstract

The utility model discloses a spring anti-flying structure of a single-action straight-stroke actuator, which comprises a spring cylinder, a cylinder barrel arranged at the lower end of the spring cylinder, a push rod and a sealing seat arranged at the lower end of the cylinder barrel, wherein a spring seat is connected in the spring cylinder in a sliding manner, and the upper end of a spring is propped against the lower end of a sliding connection ring seat at the top of the spring seat; the inside guide bar that is equipped with of spring holder, the guide bar top stretches into to inside the spring holder to the spiro union has limit nut, and the fixed plate has been cup jointed to the guide bar lower extreme, and the fixed plate passes through the screw fixation in piston dish upper end, the spiro union is in the piston dish after the seal receptacle middle part is run through at the push rod top. The spring barrel has the function of limiting the spring, and the limiting length is greatly increased compared with the limiting length of a conventional spring, so that the coaxiality of the spring is high during working, and the effective coefficient of thrust of the spring is improved; the two sides of the push rod are respectively fixed and locked by the fixing plate and the limiting nut, so that when the spring is disassembled in a pre-compression state, the spring cannot be separated due to the locking of the limiting nut, and the safety and the reliability are realized.

Description

Spring anti-flying-out structure of single-action straight stroke actuator

Technical Field

The utility model relates to the technical field of actuators, in particular to a spring anti-flying structure of a single-action straight-stroke actuator.

Background

The push rod of the existing single-action straight stroke actuator is driven by a spring, but the coaxiality of the spring during working is poor, the effective coefficient of thrust of the spring cannot be ensured, and when the spring is disassembled in a pre-compression state, the spring is easy to disengage, unsafe during operation and low in reliability. Therefore, a spring anti-flying structure of the single-action straight stroke actuator is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a spring anti-flying-out structure of a single-action straight stroke actuator, which aims to solve the problems in the prior art.

In order to achieve the purpose, the utility model provides the following technical scheme: a spring anti-flying structure of a single-action straight-stroke actuator comprises a spring cylinder, a cylinder barrel arranged at the lower end of the spring cylinder, a push rod and a sealing seat arranged at the lower end of the cylinder barrel, wherein a spring seat is connected in the spring cylinder in a sliding manner, a spring is sleeved on the outer side of the spring seat, and the upper end of the spring abuts against the lower end of a sliding connection ring seat at the top of the spring seat;

the inside guide bar that is equipped with of spring holder, the guide bar top stretches into inside the spring holder to the spiro union has limit nut, the fixed plate has been cup jointed to the guide bar lower extreme, the fixed plate passes through the screw fixation in piston dish upper end, the spiro union is in piston dish after the seal receptacle middle part is run through at the push rod top.

The outer side of the lower end of the spring cylinder is provided with a flange ring which is integrally formed with the spring cylinder, the sealing seat is connected to the flange ring through a long bolt, and the top of the long bolt penetrates through the flange ring and is then connected with a bolt nut in a threaded mode. The spring seat and the sliding connection ring seat are integrally formed. And the outer side of the piston disc is sleeved with a sealing ring.

Compared with the prior art, the utility model has the beneficial effects that: the single-action straight stroke actuator adopts a split structure, and the spring cylinder with smaller outer diameter is used as the auxiliary cylinder barrel, so that the hard chromium plating area of the inner wall of the spring cylinder is greatly reduced, and the cost is reduced; the spring barrel has the function of limiting the spring, and the limiting length is greatly increased compared with the limiting length of a conventional spring, so that the coaxiality of the spring is high during working, and the effective coefficient of the thrust of the spring is improved; the spring of the single-action straight stroke actuator and the spring of the shifting fork type actuator can be universal, namely standardized, so that the cost is saved; the two sides of the push rod are respectively fixed and locked by the fixing plate and the limiting nut, so that when the spring is disassembled in a pre-compression state, the spring cannot be separated due to the locking of the limiting nut, and the safety and the reliability are realized.

Drawings

FIG. 1 is a schematic view of the structure of the present invention.

In the figure: 1. a spring case; 2. a spring; 3. a spring seat; 4. a slip ring seat; 5. a limit nut; 6. a guide bar; 7. a cylinder barrel; 8. a long bolt; 9. a flange ring; 10. a bolt and a nut; 11. a fixing plate; 12. a screw; 13. a piston disc; 14. a seal ring; 15. a sealing seat; 16. a push rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the present invention provides a technical solution: a spring anti-flying-out structure of a single-action straight-stroke actuator comprises a spring cylinder 1, a cylinder barrel 7 arranged at the lower end of the spring cylinder 1, a push rod 16 and a sealing seat 15 arranged at the lower end of the cylinder barrel 7, wherein a spring seat 3 is connected in the spring cylinder 1 in a sliding manner, a spring 2 is sleeved on the outer side of the spring seat 3 in a sleeved manner, and the upper end of the spring 2 abuts against the lower end of a sliding connection ring seat 4 at the top of the spring seat 3;

the inside guide bar 6 that is equipped with of spring holder 3, 6 tops of guide bar stretch into to spring holder 3 inside to the spiro union has stop nut 5, 6 lower extremes of guide bar have cup jointed fixed plate 11, fixed plate 11 passes through screw 12 to be fixed in piston dish 13 upper end, 16 tops of push rod run through behind the 15 middle parts of seal receptacle spiro union in piston dish 13.

The outer side of the lower end of the spring cylinder 1 is provided with a flange ring 9 which is integrally formed with the spring cylinder, the sealing seat 15 is connected to the flange ring 9 through a long bolt 8, and the top of the long bolt 8 penetrates through the flange ring 9 and then is connected with a bolt nut 10 in a threaded mode. The spring seat 3 and the sliding connection ring seat 4 are integrally formed. And a sealing ring 14 is sleeved on the outer side of the piston disc 13.

The single-action straight stroke actuator adopts a split structure, and the spring cylinder 1 with smaller outer diameter is used as an auxiliary cylinder barrel, so that the hard chromium plating area of the inner wall of the spring cylinder 1 is greatly reduced, and the cost is reduced;

the spring barrel 1 has the function of limiting the spring 2, and the limiting length is greatly increased compared with the limiting length of a conventional spring, so that the coaxiality of the spring 2 is high during working, and the effective coefficient of thrust of the spring 2 is improved;

the spring 2 of the single-action straight stroke actuator and the spring 2 of the shifting fork type actuator can be used in common, namely standardization can be realized, and the cost is saved;

the two sides of the push rod 16 are respectively fixed and locked by the fixing plate 11 and the limiting nut 5, so that when the spring 2 is disassembled in a pre-compression state, the spring 2 cannot be separated due to the locking of the limiting nut 5, and the safety and the reliability are realized.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a spring of single-action craspedodrome journey executor prevents flying out structure, includes cylinder (7), push rod (16) and seal receptacle (15) of cylinder (7) lower extreme installation of spring cartridge (1), spring cartridge (1) lower extreme installation, its characterized in that: a spring seat (3) is connected in the spring barrel (1) in a sliding manner, a spring (2) is sleeved on the outer side of the spring seat (3), and the upper end of the spring (2) abuts against the lower end of a sliding connection ring seat (4) at the top of the spring seat (3); spring holder (3) inside guide bar (6) that is equipped with, inside guide bar (6) top stretched into spring holder (3) to the spiro union has stop nut (5), fixed plate (11) have been cup jointed to guide bar (6) lower extreme, fixed plate (11) are fixed in piston dish (13) upper end through screw (12), spiro union in piston dish (13) behind seal receptacle (15) middle part is run through at push rod (16) top.

2. The spring anti-pop-out structure of a single-acting linear actuator according to claim 1, wherein: the outer side of the lower end of the spring barrel (1) is provided with a flange ring (9) which is integrally formed with the spring barrel, the sealing seat (15) is connected to the flange ring (9) through a long bolt (8), and the top of the long bolt (8) penetrates through the flange ring (9) and is then screwed with a bolt nut (10).

3. The spring anti-pop-out structure of a single-acting linear actuator according to claim 1, wherein: the spring seat (3) and the sliding connection ring seat (4) are integrally formed.

4. The spring anti-pop-out structure of a single-acting linear actuator according to claim 1, wherein: and a sealing ring (14) is sleeved on the outer side of the piston disc (13).