CN216714867U

CN216714867U - Enhanced hydraulic oil cylinder

Info

Publication number: CN216714867U
Application number: CN202123029104.XU
Authority: CN
Inventors: 葛明坤; 朱爱国
Original assignee: Taizhou Jiahe Machinery Co ltd
Current assignee: Taizhou Jiahe Machinery Co ltd
Priority date: 2021-11-30
Filing date: 2021-11-30
Publication date: 2022-06-10
Anticipated expiration: 2031-11-30

Abstract

The utility model relates to the technical field of hydraulic cylinders, and discloses an enhanced hydraulic cylinder, which comprises: the cylinder body is fixed on the inner sides of the lower supporting plate and the upper pressing plate, the sealing ring is embedded in the upper end of the cylinder body, a piston rod penetrates through the sealing ring, and the top end of the piston rod is connected with a main pull rod through a rotating shaft. This enhancement formula hydraulic cylinder is provided with vice pull rod and main pull rod, through the inside buffer structure of main pull rod, makes this hydraulic cylinder original invariable thrust output change linear thrust output into, reduces the harm that causes jointing equipment or device when the initial thrust of pneumatic cylinder is great, and initial thrust passes through the deformation absorption part by the inside nylon packing ring of main pull rod to at follow-up promotion in-process slow release, thrust is more stable more relaxs than the piston rod expenditure, is applicable to the stronger enhancement formula hydraulic cylinder of this thrust.

Description

Enhanced hydraulic oil cylinder

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to an enhanced hydraulic cylinder.

Background

The hydraulic cylinder is an actuating element in a hydraulic transmission system and is an energy conversion device for converting hydraulic energy into mechanical energy. The hydraulic cylinder has reliable work, high temperature resistance, impact resistance and pollution resistance, is suitable for various occasions with high temperature, high pressure and severe environment, and is widely applied to the industries of steel and iron smelting, non-ferrous metal smelting, casting and rolling, aerospace, power equipment and the like.

In the market, because the power transmission at a piston rod of an enhanced hydraulic oil cylinder is stronger than that of a common hydraulic oil cylinder in use, connected devices or equipment are easily damaged due to contact friction, and part of the devices or equipment can be extruded and damaged by the piston rod due to inertia, the enhanced hydraulic oil cylinder is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an enhanced hydraulic oil cylinder to solve the problems that in the use of the enhanced hydraulic oil cylinder in the market, because the power transmission at a piston rod is stronger than that of a common hydraulic oil cylinder, a connected device or equipment is easy to damage due to contact friction, and part of the device or equipment is also likely to be extruded and damaged by the piston rod due to inertia.

In order to achieve the purpose, the utility model provides the following technical scheme: an enhanced hydraulic ram comprising:

the cylinder body is fixed on the inner sides of the lower support plate and the upper pressure plate, the upper end of the cylinder body is embedded with a sealing ring, a piston rod penetrates through the sealing ring, the top end of the piston rod is connected with a main pull rod through a rotating shaft, the other end of the main pull rod is connected with an auxiliary pull rod, a cavity is formed in the main pull rod, nylon cushion rings are fixed on the upper inner wall and the lower inner wall of the cavity, clamping columns are fixed on the outer walls of the two sides of the auxiliary pull rod, and the clamping columns are located in the cavity;

the cylinder cavity is arranged in the cylinder body, the lower end of the piston rod is connected with an inner piston, the outer wall of the inner piston is annularly provided with a Glare ring, and the outer wall of one side of the cylinder body is embedded with an air guide one-way valve.

Preferably, the main pull rod is rotatably connected with the upper end of the piston rod through a rotating shaft, the auxiliary pull rod is in an elastic telescopic structure through a clamping column and a nylon backing ring, and the auxiliary pull rod is in clamping connection with the cavity through the clamping column.

Preferably, the piston rod forms a telescopic structure with the inner piston through a sealing ring and a Glare ring, and the cylinder cavity forms a communicating structure with the air guide one-way valve through the cylinder body.

Preferably, the cylinder body is further provided with:

and the spring guide plate is fixed on the inner wall of the lower end of the cylinder cavity, and a buffer plate is fixed at the upper end of the spring guide plate.

Preferably, an elastic telescopic structure is formed between the buffer plate and the spring guide plate, and the upper end face of the buffer plate is parallel to the lower end face of the inner piston.

Preferably, the inner piston is further provided with:

the buffer sleeve is arranged at the joint of the inner piston and the piston rod and fixed on the upper end surface of the inner piston, the upper end of the buffer sleeve is connected with a spring column, and the upper end of the spring column is connected with a gasket.

Preferably, the spring columns are uniformly distributed at equal intervals on the upper end surface of the buffer sleeve, the gasket forms an elastic telescopic structure with the buffer sleeve through the spring columns, and the gasket is matched with the appearance structure of the sealing ring.

Compared with the prior art, the utility model has the beneficial effects that:

1. this enhancement formula hydraulic cylinder is provided with vice pull rod and main pull rod, through the inside buffer structure of main pull rod, makes this hydraulic cylinder original invariable thrust output change linear thrust output into, reduces the harm that causes jointing equipment or device when the initial thrust of pneumatic cylinder is great, and initial thrust passes through the deformation absorption part by the inside nylon packing ring of main pull rod to at follow-up promotion in-process slow release, thrust is more stable more relaxs than the piston rod expenditure, is applicable to the stronger enhancement formula hydraulic cylinder of this thrust.

2. The GREEN circle frictional force that sets up is low, and is sealed for the double-acting piston, and the starting force is little, does not have and crawls, plays great help to sealed effect and the sliding effect of internal piston when moving about in the jar chamber, and cylinder body lower extreme one side outer wall passes through gas guide check valve and jar chamber intercommunication, can get rid of unnecessary gas as required, reinforcing hydraulic cylinder's stability in use.

3. The buffer plate is used for buffering the spring guide plate connected with the lower end when the inner piston is pushed, and the spring guide plate enables the motion direction of the buffer plate to be vertically fixed, so that the inner piston cannot be bent to influence the operation; the buffer sleeve and the gasket are used for reducing collision damage between the inner piston and the inner upper end of the cylinder body when the inner piston moves upwards, the gasket is consistent with the sealing ring in size, the gasket can be tightly sleeved on the rod wall of the piston rod, and the buffer effect caused by displacement of the gasket is prevented from being reduced.

Drawings

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

FIG. 2 is a schematic view of a partially cut-away perspective structure of the auxiliary pull rod and the main pull rod of the present invention;

FIG. 3 is a schematic view of a partially cut-away perspective structure of the cylinder body of the present invention;

fig. 4 is a schematic diagram of a partially enlarged perspective structure of the cushion collar of the present invention.

In the figure: 1. a lower support plate; 2. an upper pressure plate; 3. a cylinder body; 4. a piston rod; 5. an oil filling pipe; 6. a main pull rod; 7. an auxiliary pull rod; 8. a cavity; 9. a nylon backing ring; 10. clamping the column; 11. a cylinder chamber; 12. a seal ring; 13. an inner piston; 14. a Glare circle; 15. a buffer sleeve; 16. an air guide one-way valve; 17. a spring guide plate; 18. a buffer plate; 19. a spring post; 20. a gasket.

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.

The utility model provides an enhanced hydraulic oil cylinder by improvement, please refer to fig. 1-2, comprising: an upper pressure plate 2 is fixed above the lower support plate 1 through a stud, the stud is used for fixing the upper pressure plate 2 and the lower support plate 1, oil injection pipes 5 are arranged on the outer walls of one sides of the lower support plate 1 and the upper pressure plate 2, the oil injection pipes 5 are communicated with a cylinder body 3, and hydraulic oil can be injected into the cylinder body 3 through the oil injection pipes 5 at the two ends; the inner sides of the lower support plate 1 and the upper pressure plate 2 are fixed with a cylinder body 3, the upper pressure plate 2 and the lower support plate 1 are used for providing stable support for the cylinder body 3, and the cylinder body 3 is fixed through a connected stud to prevent the cylinder body 3 from being expanded under pressure; a sealing ring 12 is embedded at the upper end of the cylinder body 3, and the sealing ring 12 is used for sealing the cylinder body 3, so that hydraulic oil injected into the cylinder cavity 11 through the oil injection pipe 5 in the cylinder body 3 cannot leak out of the piston rod 4; a piston rod 4 penetrates through the sealing ring 12, the top end of the piston rod 4 is connected with a main pull rod 6 through a rotating shaft, the main pull rod 6 is rotatably connected with the upper end of the piston rod 4 through the rotating shaft, the other end of the main pull rod 6 is connected with an auxiliary pull rod 7, a cavity 8 is formed in the main pull rod 6, nylon cushion rings 9 are fixed on the upper inner wall and the lower inner wall of the cavity 8, clamping columns 10 are fixed on the outer walls of the two sides of the auxiliary pull rod 7, the clamping columns 10 are located in the cavity 8, the auxiliary pull rod 7 forms an elastic telescopic structure with the main pull rod 6 through the clamping columns 10 and the nylon cushion rings 9, the auxiliary pull rod 7 forms a clamping connection with the cavity 8 through the clamping columns 10, the arranged auxiliary pull rod 7 and the main pull rod 6 enable the original constant thrust output of the hydraulic oil cylinder to be converted into linear thrust output through an internal buffer structure, and damage to connecting equipment or devices when the initial thrust of the hydraulic oil cylinder is larger is reduced, the initial thrust is absorbed by the nylon washer 20 in the main pull rod 6 through deformation and is slowly released in the subsequent pushing process, and the thrust is more stable and mild than the expenditure of the piston rod 4, so that the thrust is suitable for the enhanced hydraulic oil cylinder with stronger thrust.

Referring to fig. 3, an enhanced hydraulic cylinder includes: the cylinder cavity 11 is arranged inside the cylinder body 3, the lower end of the piston rod 4 is connected with an inner piston 13, the outer wall of the inner piston 13 is annularly provided with a Glae ring 14, the piston rod 4 forms a telescopic structure with the inner piston 13 through a sealing ring 12 and the Glae ring 14, the outer wall of one side of the cylinder body 3 is embedded with an air guide one-way valve 16, the cylinder cavity 11 forms a communicating structure with the air guide one-way valve 16 through the cylinder body 3, the arranged Glae ring 14 has low friction force, is sealed by a double-acting piston, has small starting force and no crawling, plays a great role in helping the sealing effect and the sliding effect of the inner piston 13 when moving in the cylinder cavity 11, and the outer wall of one side of the lower end of the cylinder body 3 is communicated with the cylinder cavity 11 through the air guide one-way valve 16, can remove redundant air according to needs, and enhances the use stability of the hydraulic cylinder; spring deflector 17, it is fixed at the lower extreme inner wall of cylinder chamber 11, spring deflector 17's upper end is fixed with buffer board 18, constitute elastic expansion structure between buffer board 18 and the spring deflector 17, and be parallel to each other between buffer board 18 up end and the interior piston 13 lower terminal surface, the buffer board 18 of setting is used for buffering through the spring deflector 17 that the lower extreme is connected when interior piston 13 promotes, spring deflector 17 makes buffer board 18 direction of motion keep vertical fixed, the operation of piston 13 in the influence of buckling can not take place.

Referring to fig. 4, an enhanced hydraulic cylinder includes: the buffer sleeve 15 is arranged at the joint of the inner piston 13 and the piston rod 4, the buffer sleeve 15 is fixed on the upper end surface of the inner piston 13, the upper end of the buffer sleeve 15 is connected with the spring columns 19, the spring columns 19 are uniformly distributed at equal intervals relative to the upper end surface of the buffer sleeve 15, and the spring columns 19 are used for absorbing impact force generated by collision through deformation and reducing loss of the cylinder body 3; the upper end of the spring column 19 is connected with a gasket 20, the gasket 20 forms an elastic telescopic structure through the spring column 19 and the buffer sleeve 15, the gasket 20 is matched with the appearance structure of the sealing ring 12, the buffer sleeve 15 and the gasket 20 are arranged to reduce collision damage between the inner piston 13 and the inner upper end of the cylinder body 3 when the inner piston 13 moves upwards, the gasket 20 and the sealing ring 12 are consistent in size, the gasket can be tightly sleeved on the rod wall of the piston rod 4, and the buffer effect is prevented from being reduced due to the displacement of the gasket 20.

The working principle is as follows: for the reinforced hydraulic oil cylinder, firstly, a cylinder body 3 of the hydraulic oil cylinder is fixed through a lower support plate 1 and an upper pressure plate 2, the upper end and the lower end of the cylinder body 3 are hooped, the upper pressure plate 2 and the lower pressure plate are connected and reinforced through a stud, the structural stability is good, then a main pull rod 6 is connected with the upper end of a piston rod 4 through a rotating shaft at the lower end, the main pull rod 6 can move along with the movement of the piston rod 4, an auxiliary pull rod 7 is connected with the upper end of the main pull rod 6 through a clamping column 10 fixed on the outer wall of the lower end, the lower end of the auxiliary pull rod 7 is positioned in a cavity 8 inside the main pull rod 6, when the piston rod 4 drives the main pull rod 6 to move, the movable buffer is carried out between the main pull rod 6 and the auxiliary pull rod 7 through the clamping column 10 and a nylon cushion ring 9 laid in the cavity 8, the fixed-size push force or the pull force transmitted by the piston rod 4 is changed into a linearly increased push force or pull force when the auxiliary pull force is transmitted to the auxiliary pull rod 7 through non-rigid connection, the damage of the strong power of the enhanced hydraulic oil cylinder to a connecting structure is reduced, under the condition that the finally transmitted force is unchanged, extra buffer protection is provided, then the piston rod 4 slides at the upper end of the cylinder body 3 through the sealing ring 12, when the piston rod 4 drives the inner piston 13 to slide in the cylinder body 3, hydraulic oil flows through the oil injection pipe 5, when the inner piston 13 moves downwards to the lowest end in the cylinder cavity 11, the air guide one-way valve 16 embedded on the outer wall of the cylinder body 3 can exhaust air, and when the inner piston 13 slides in the cylinder cavity 11, hydraulic oil above and below the inner piston 13 is isolated and the sliding smoothness of the piston is improved through the Glare ring 14 annularly arranged on the outer wall of the inner piston 13, finally, when the inner piston 13 runs up and down, the buffer structure buffers the inner piston 13, when the inner piston 13 runs down, the lower end face of the inner piston 13 is in contact with the buffer plate 18 on the spring guide plate 17 connected with the bottom end of the cylinder cavity 11, cushion collar 15 that the department ring was established through interior piston 13 and piston rod 4 junction when going upward cushions, and cushion collar 15 upper end is connected with a plurality of spring posts 19, the packing ring 20 of connecting through spring post 19 upper end is deformed with the inside up end contact of cylinder body 3, the buffering when realizing going upward, and because piston rod 4 and interior piston 13 all have partial dead weight, for this hydraulic cylinder's good use, this hydraulic cylinder should vertically place daily, avoid the level to place and lead to the interior unilateral wearing and tearing damage of cylinder chamber 11.

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. An enhanced hydraulic ram comprising:

a lower support plate (1), an upper pressure plate (2) is fixed above the lower support plate (1) through a stud, the outer walls of one sides of the lower support plate (1) and the upper pressure plate (2) are provided with oil filling pipes (5), the inner sides of the lower support plate (1) and the upper pressure plate (2) are fixed with a cylinder body (3), a sealing ring (12) is embedded at the upper end of the cylinder body (3), a piston rod (4) is arranged in the sealing ring (12) in a penetrating way, the top end of the piston rod (4) is connected with a main pull rod (6) through a rotating shaft, the other end of the main pull rod (6) is connected with an auxiliary pull rod (7), a cavity (8) is arranged inside the main pull rod (6), nylon backing rings (9) are fixed on the upper inner wall and the lower inner wall of the cavity (8), clamping columns (10) are fixed on the outer walls of the two sides of the auxiliary pull rod (7), and the clamping columns (10) are located inside the cavity (8);

the cylinder cavity (11) is formed in the cylinder body (3), the lower end of the piston rod (4) is connected with an inner piston (13), a GREEN (14) is arranged on the outer wall of the inner piston (13) in a surrounding mode, and an air guide one-way valve (16) is embedded in the outer wall of one side of the cylinder body (3).

2. An enhanced hydraulic ram according to claim 1 wherein: main pull rod (6) constitute to rotate between pivot and piston rod (4) upper end and be connected, and vice pull rod (7) constitute elastic telescopic structure through blocking between post (10) and nylon backing ring (9) and main pull rod (6) to constitute the block between vice pull rod (7) through blocking post (10) and cavity (8) and be connected.

3. An enhanced hydraulic ram according to claim 1 wherein: the piston rod (4) forms a telescopic structure with the inner piston (13) through the sealing ring (12) and the GREEN ring (14), and the cylinder cavity (11) forms a communicating structure with the air guide one-way valve (16) through the cylinder body (3).

4. An enhanced hydraulic ram according to claim 1 wherein: the cylinder body (3) is further provided with:

and the spring guide plate (17) is fixed on the inner wall of the lower end of the cylinder cavity (11), and a buffer plate (18) is fixed at the upper end of the spring guide plate (17).

5. An enhanced hydraulic ram according to claim 4 wherein: an elastic telescopic structure is formed between the buffer plate (18) and the spring guide plate (17), and the upper end face of the buffer plate (18) is parallel to the lower end face of the inner piston (13).

6. An enhanced hydraulic ram according to claim 1 wherein: the inner piston (13) is further provided with:

the buffer sleeve (15) is arranged at the joint of the inner piston (13) and the piston rod (4), the buffer sleeve (15) is fixed on the upper end face of the inner piston (13), the upper end of the buffer sleeve (15) is connected with a spring column (19), and the upper end of the spring column (19) is connected with a gasket (20).

7. An enhanced hydraulic ram according to claim 6 wherein: the spring columns (19) are uniformly distributed at equal intervals on the upper end surface of the buffer sleeve (15), the gasket (20) forms an elastic telescopic structure between the spring columns (19) and the buffer sleeve (15), and the gasket (20) is matched with the appearance structure of the sealing ring (12).