CN214617276U

CN214617276U - Hydraulic cylinder with locking structure

Info

Publication number: CN214617276U
Application number: CN202023205027.4U
Authority: CN
Inventors: 刘春生; 谢振欢
Original assignee: Shaoguan Wanheng Machinery Equipment Co ltd
Current assignee: Shaoguan Wanheng Machinery Equipment Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-11-05
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a pneumatic cylinder of area locking structure, including piston rod, jar head and cylinder, the one end of cylinder is equipped with the cylinder bottom, and the left side of cylinder bottom is equipped with the flange, and the other end of cylinder passes through lock nut and links together with the cylinder head, and the stifled closing cap of last sealing connection of cylinder head, the below of cylinder head are equipped with the earrings, and the below of stifled closing cap is equipped with the uide bushing, and the piston rod with the cylinder joint is passed at the center of uide bushing, and the hinge in the rod head connection of piston rod, the outside top of cylinder is equipped with the lock mother, and the afterbody of cylinder is close to cylinder bottom department and is equipped with the hydraulic fluid port, connects defeated oil pipe on the hydraulic fluid port, and the bottom of piston rod is equipped with the piston. This pneumatic cylinder of area locking structure, lock nut make the connection between cylinder and the cylinder end more firm, need not often to clear up, improve work efficiency, play and prevent that the too big effect that causes the damage to equipment of strength, extension equipment life makes the pneumatic cylinder have the effect of locking, when using, prevents that pressure is too big, leads to the piston rod to rock, influences the hydraulic pressure effect.

Description

Hydraulic cylinder with locking structure

Technical Field

The utility model relates to a pneumatic cylinder field specifically is a pneumatic cylinder of area locking structure.

Background

The hydraulic oil cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. It is known that in the application of hydraulic cylinders, in some special cases, the position of a piston rod needs to be locked, and therefore, a locking mechanism needs to be arranged on the hydraulic cylinder. The existing locking mechanism for the hydraulic cylinder generally has the defects of complex structure, high energy consumption and poor stability and reliability, and the locking effect is not obvious.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pneumatic cylinder of area locking structure has simple structure, and it is effectual to lock, easily realizes that the energy consumption is little moreover, and problem among the prior art can be solved to the safe and reliable advantage of operation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a pneumatic cylinder of area locking structure, includes piston rod, cylinder end and cylinder, the one end of cylinder is equipped with the cylinder end, and the left side of cylinder end is equipped with the flange, and the other end of cylinder passes through lock nut and links together with the cylinder end, and the stifled closing cap of sealed connection on the cylinder end, the below of cylinder end is equipped with the earrings, and the below of stifled closing cap is equipped with the uide bushing, the piston rod with the cylinder joint is passed at the center of uide bushing, hinge in the pole head connection of piston rod, the outside top of cylinder is equipped with the lock mother, and the afterbody of cylinder is close to cylinder end department and is equipped with the hydraulic fluid port, connects defeated oil pipe on the hydraulic fluid port, and the bottom of piston rod is equipped with the piston.

Preferably, the fixing pieces matched with the locking nut are connected to the lower portion of the locking nut, and the two fixing pieces are arranged and are respectively located on two sides of the piston rod.

Preferably, the inner diameter of the cylinder barrel 3 is 127mm, the outer diameter of the cylinder barrel 3 is 127mm, the rod diameter of the piston rod is 50mm, and the stroke of the piston cylinder is 285 mm.

Preferably, the piston rod is provided with a first O-shaped sealing ring, a first dust ring and a buffer sleeve at the position where the piston rod is located on the guide sleeve, the first dust ring is located on the outer side of the first O-shaped sealing ring, and the buffer sleeve is arranged below the first O-shaped sealing ring.

Preferably, the right side of the piston is provided with a sealing ring symmetrically at the inner wall of the cylinder barrel.

Preferably, a set of sealing rings is symmetrically arranged on the inner wall of the bottom of the ear ring, a central shaft is arranged in the ear ring, an O-shaped sealing ring is arranged in the middle of the central shaft, and a dustproof ring is arranged at the ring opening of the ear ring above the O-shaped sealing ring.

Preferably, the working pressure of the piston rod is 10MPa, the experimental pressure is 24MPa, and the working medium is hydraulic oil.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. according to the hydraulic cylinder with the locking structure, the cylinder barrel is connected with the cylinder head through the locking nut, the locking nut enables the connection between the cylinder barrel and the cylinder head to be firmer, the working pressure of the piston rod is 10MPa, the experiment pressure is 24MPa, and the equipment cannot be damaged due to overlarge pressure.

2. This pneumatic cylinder of area locking structure, first O type sealing washer make cylinder inside seal, make the pneumatic cylinder can not have the condition of gas leakage, influence the result of use, and first dust ring can block the inside that the dust got into from the gap department of cylinder, makes the cylinder inside keep clean, need not often clearance, improves work efficiency.

3. This pneumatic cylinder of area locking structure, cushion collar can have the buffering effect in hydraulic cylinder operation, plays the effect that prevents that the strength is too big to cause the damage to equipment, extension equipment life.

4. This pneumatic cylinder of area locking structure is through screwing up the lock mother, extrudeing the mounting, is used for locking the piston rod, makes the pneumatic cylinder have the effect of locking, when using, prevents that pressure is too big, leads to the piston rod to rock, influences the hydraulic pressure effect, and defeated oil pipe uses high-pressure rubber tube, and high-pressure rubber tube crushing resistance is strong, and the winter protection is high temperature resistant, makes the pneumatic cylinder practicality stronger.

Drawings

FIG. 1 is an overall view of the present invention;

FIG. 2 is a structural view of the cylinder head of the present invention;

FIG. 3 is a view showing the structure of the bottom of the cylinder;

fig. 4 is a view showing the structure of the earring of the present invention.

In the figure: 1. a piston rod; 2. a cylinder head; 3. a cylinder barrel; 4. a guide sleeve; 5. a cylinder bottom; 6. a flange; 7. an ear ring; 8. a middle hinge shaft; 9. a piston; 10. an oil port; 11. plugging a sealing cover; 12. an oil delivery pipe; 13. a fixing member; 14. a first dust ring; 15. a first O-ring seal; 16. a seal ring; 17. a central shaft; 18. locking a nut; 19. locking the nut; 20. a second O-ring seal; 21. a second dust ring; 22. a buffer sleeve.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 belong to the protection scope of the present invention.

Referring to fig. 1-4, a hydraulic cylinder with a locking structure comprises a piston rod 1, a cylinder head 2 and a cylinder barrel 3, wherein one end of the cylinder barrel 3 is provided with a cylinder bottom 5, the left side of the cylinder bottom 5 is provided with a flange 6, the other end of the cylinder barrel 3 is connected with the cylinder head 2 through a locking nut 19, the locking nut 19 enables the connection between the cylinder barrel 3 and the cylinder head 2 to be firmer, the inner diameter of the cylinder barrel 3 is 127mm, the outer diameter of the cylinder barrel 3 is 127mm, the rod diameter of the piston rod 1 is 50mm, the stroke of the piston rod 1 is 285mm, the working pressure of the piston rod 1 is 10MPa, the experimental pressure is 24MPa, the working medium is hydraulic oil, the piston rod 1 is provided with a first O-shaped seal ring 15, a first dust ring 14 and a buffer sleeve 22 at the position of a guide sleeve 4, the first dust ring 14 is positioned at the outer side of the first O-shaped seal ring 15, a buffer sleeve 22 is arranged below the first O-shaped seal ring 15, and the buffer sleeve 22 can have a buffer effect in the operation of the hydraulic cylinder, the effect of preventing the damage to the equipment caused by overlarge force is achieved, the service life of the equipment is prolonged, the first O-shaped sealing ring 15 enables the interior of the cylinder barrel 3 to be sealed, the air leakage condition of a hydraulic cylinder can not exist, the using effect is not affected, the first dust-proof ring 14 can block the interior of dust entering from the gap of the cylinder barrel 3, the interior of the cylinder barrel 3 is kept clean, frequent cleaning is not needed, the working efficiency is improved, the cylinder head 2 is hermetically connected with the blocking and sealing cover 11, the ear ring 7 is arranged below the cylinder head 2, a group of sealing rings 16 are symmetrically arranged on the inner wall of the bottom of the ear ring 7, the central shaft 17 is arranged in the ear ring 7, the second O-shaped sealing ring 20 is arranged in the middle of the central shaft 17, the second dust-proof ring 21 is arranged at the ring opening of the ear ring 7 above the second O-shaped sealing ring 20, the guide sleeve 4 is arranged below the blocking and sealing cover 11, the center of the guide sleeve 4 penetrates through the piston rod 1 clamped with the cylinder barrel 3, the rod head of the piston rod 1 is connected with the central hinge shaft 8, a lock nut 18 is arranged above the outer side of the cylinder barrel 3, a fixing piece 13 matched with the lock nut 18 is connected below the lock nut 18, two groups of fixing pieces 13 are arranged and are respectively positioned at two sides of the piston rod 1, the fixing pieces 13 are extruded by screwing the lock nuts 18 to lock the piston rod 1, so that the hydraulic cylinder has a locking effect, when the hydraulic cylinder is used, the piston rod 1 is prevented from shaking due to overlarge pressure, the hydraulic effect is influenced, an oil port 10 is arranged at the tail part of the cylinder barrel 3, which is close to the cylinder bottom 5, an oil conveying pipe 12 is connected to the oil port 10, a piston 9 is arranged at the bottom of the piston rod 1, a sealing ring 16 is symmetrically arranged at the right side of the piston 9, which is positioned at the inner wall of the cylinder barrel 3, when the hydraulic cylinder is used, hydraulic oil flows into the cylinder barrel 3 from the oil conveying pipe 12 through the oil port 10, the piston rod 1 is controlled to move through a middle hinge shaft 8 and an ear ring 7, the lock nut 18 is screwed when the piston rod 1 moves to extrude the fixing piece 13 to lock the piston 1, and bear the gas pressure generated when the piston 1 moves, the buffer sleeve 22 has a buffer effect in the operation of the hydraulic cylinder, protects the piston rod 1 and prolongs the service life of the hydraulic cylinder.

In conclusion, the hydraulic cylinder with the locking structure has the advantages of simple structure, good locking effect, easy realization, low energy consumption and safe and reliable operation, the other end of the cylinder barrel 3 is connected with the cylinder head 2 through the locking nut 19, the locking nut 19 ensures that the connection between the cylinder barrel 3 and the cylinder head 2 is firmer, the inner diameter of the cylinder barrel 3 is 127mm, the outer diameter of the cylinder barrel 3 is 127mm, the rod diameter of the piston rod 1 is 50mm, the stroke of the piston rod 1 is 285mm, the working pressure of the piston rod 1 is 10MPa, the experimental pressure is 24MPa, so that the equipment cannot be damaged due to overlarge pressure, the first O-shaped sealing ring 15 seals the inside of the cylinder barrel 3, the hydraulic cylinder cannot have air leakage condition, the use effect is influenced, the first dust ring 14 can prevent dust from entering the inside of the gap of the cylinder barrel 3, the inside of the cylinder barrel 3 is kept clean, the frequent cleaning is not needed, the working efficiency is improved, set up cushion collar 22 and can have the cushioning effect in the hydraulic cylinder function, play and prevent that strength is too big to cause the effect of damage to equipment, extension equipment life, through screwing up the lock nut 18, come extrusion mounting 13, be used for locking piston rod 1, make the pneumatic cylinder have the effect of locking, when using, prevent that pressure is too big, lead to piston rod 1 to rock, influence hydraulic pressure effect, defeated oil pipe 12 uses the high-pressure rubber pipe, high-pressure rubber pipe compressive resistance is strong, the winter protection is high temperature resistant, make the pneumatic cylinder practicality stronger.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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 invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a take hydraulic cylinder of locking structure, includes piston rod (1), cylinder head (2) and cylinder (3), its characterized in that: the one end of cylinder (3) is equipped with end of cylinder (5), the left side of end of cylinder (5) is equipped with flange (6), the other end of cylinder (3) passes through lock nut (19) and links together with jar head (2), sealed connection blocks up closing cap (11) on jar head (2), the below of jar head (2) is equipped with earrings (7), the below of blocking up closing cap (11) is equipped with uide bushing (4), the center of uide bushing (4) passes piston rod (1) with cylinder (3) joint, hinge (8) in the pole head connection of piston rod (1), the outside top of cylinder (3) is equipped with lock nut (18), the afterbody of cylinder (3) is close to end of cylinder (5) department and is equipped with hydraulic fluid port (10), connect defeated oil pipe (12) on hydraulic fluid port (10), the bottom of piston rod (1) is equipped with piston (9).

2. The hydraulic cylinder with a locking structure according to claim 1, wherein: the lower part of the lock nut (18) is connected with fixing pieces (13) matched with the lock nut, and two groups of fixing pieces (13) are arranged and are respectively positioned on two sides of the piston rod (1).

3. The hydraulic cylinder with a locking structure according to claim 1, wherein: the inner diameter of the cylinder barrel (3) is 127mm, the outer diameter of the cylinder barrel (3) is 127mm, the rod diameter of the piston rod (1) is 50mm, and the stroke of the piston rod (1) is 285 mm.

4. The hydraulic cylinder with a locking structure according to claim 1, wherein: piston rod (1) are located uide bushing (4) department and are equipped with first O type sealing washer (15), first dust ring (14) and cushion collar (22), and first dust ring (14) are located the outside of first O type sealing washer (15), and the below of first O type sealing washer (15) is equipped with cushion collar (22).

5. The hydraulic cylinder with a locking structure according to claim 1, wherein: and the right side of the piston (9) is symmetrically provided with a sealing ring (16) at the inner wall of the cylinder barrel (3).

6. The hydraulic cylinder with a locking structure according to claim 1, wherein: a group of sealing rings (16) are symmetrically arranged on the inner wall of the bottom of the ear ring (7), a central shaft (17) is arranged in the ear ring (7), a second O-shaped sealing ring (20) is arranged in the middle of the central shaft (17), and a second dust ring (21) is arranged at the ring opening of the ear ring (7) above the second O-shaped sealing ring (20).

7. The hydraulic cylinder with a locking structure according to claim 1, wherein: the working pressure of the piston rod (1) is 10MPa, the experimental pressure is 24MPa, and the working medium is hydraulic oil.