CN220227353U - Balance cylinder - Google Patents

Abstract

The utility model discloses a balance oil cylinder which comprises a cylinder barrel, wherein the left end and the right end of the cylinder barrel are respectively connected with a left cylinder cover and a right cylinder cover through a plurality of bolts, a buffer ring is arranged in the left cylinder cover, a piston rod is sleeved in the center of the left cylinder cover, the buffer ring is sleeved on the outer surface of the piston rod, and a dust ring and a sealing ring are sleeved on the outer surface of the piston rod. Hydraulic oil is pumped in and out from an oil inlet hole in an oil inlet and outlet block on the side wall of the cylinder barrel, and is matched with an oil inlet and outlet pipe and an oil inlet and outlet right channel to push the piston rod to stretch out and draw back, the rear end faces of the oil outlet head and the oil inlet head are provided with pressure relief openings, automatic exhaust valves are arranged in the pressure relief openings, the automatic exhaust valves are arranged in the pressure relief openings and are used for discharging gas in the cylinder barrel, and the hydraulic oil is discharged in a unidirectional way, only the gas can be discharged, the expansion and the contraction of the cylinder can be accelerated, and cavitation is reduced.

Description

Balance cylinder

Technical Field

The utility model relates to the field of oil cylinders, in particular to a balance oil cylinder.

Background

The hydraulic cylinder is a device with a very wide application range, takes hydraulic oil as a working medium, transmits motion through the change of a sealing volume, transmits power through the pressure in the hydraulic oil, and can convert the hydraulic energy into mechanical energy to do linear reciprocating motion or swinging motion. The hydraulic cylinder is generally composed of a piston rod, a cylinder body, a piston, a sealing system and the like. Hydraulic technology is pioneering the mechanical revolution and hydraulic cylinders are increasingly being integrated with electronic technology as actuators for hydraulic systems. The hydraulic pressure difference is great in the pneumatic cylinder during operation, and is very big to cylinder body pressure, and the piston must bear huge pressure at any time, and the flexible of piston is slow, and the cavitation easily appears in the hydro-cylinder barrel, influences hydro-cylinder flexible accuracy, consequently, to above-mentioned problem, this application provides a balanced hydro-cylinder.

Disclosure of Invention

The present utility model is directed to a balancing cylinder, which solves the above-mentioned problems of the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a balance cylinder, includes the cylinder, both ends are connected with left cylinder cap and right cylinder cap respectively through a plurality of bolts about the cylinder, be provided with the buffer ring in the left cylinder cap, left cylinder cap center cover is equipped with the piston rod, the buffer ring cover is established at the surface of piston rod, the surface of piston rod still overlaps and is equipped with dust ring and sealing washer, the right-hand member fixedly connected with pole head of piston rod, the left end fixedly connected with flexible head of piston rod, the right-hand member fixedly connected with right cylinder cap of cylinder, be provided with antifouling ring and main sealing washer in the right-hand member of cylinder, the right-hand member fixedly connected with installation head of right cylinder cap, fixedly provided with business turn over oil cake on the lateral wall of cylinder, the upside of business turn over oil cake is provided with business turn over oilhole respectively, the left and right sides wall of business turn over oil cake is connected with oil pipe and oil feed pipe respectively, left cylinder cap and right cylinder cap are connected with oil feed through hole and oil feed through hole respectively, oil feed through hole and oil feed through hole in the left cylinder cap and the interior intercommunication of passing through.

Preferably, the surface of the buffer ring is provided with an oil groove in a penetrating way.

Preferably, the rear end surfaces of the oil outlet head and the oil inlet head are provided with pressure relief openings, and an automatic exhaust valve is arranged in each pressure relief opening.

Preferably, the diameter of the rod head is smaller than the diameter of the piston rod.

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

1. when a piston rod in the oil cylinder stretches out, high-pressure oil is pumped in from an oil inlet and outlet hole above the oil inlet and outlet block, the high-pressure oil enters the cylinder barrel along an oil inlet pipe and an oil inlet communication hole in the oil inlet head, then enters the cylinder barrel after being filtered by an anti-fouling ring, and the piston rod is ejected out from the right end, and in the process, oil in the cylinder barrel on the left side of the piston rod is pumped out from the oil inlet and outlet hole below the oil inlet and outlet block, so that the oil cylinder is elongated;

2. when a piston rod in the oil cylinder is retracted into the cylinder barrel, at the moment, high-pressure oil is pumped in from the oil inlet and outlet hole below the oil inlet and outlet block, the high-pressure oil enters the cylinder barrel along the oil outlet pipe and the oil outlet communication hole in the oil outlet head, and meanwhile, oil on the right side of the telescopic rod in the cylinder barrel is pumped out from the oil inlet and outlet hole above the oil inlet and outlet block, so that the oil cylinder is contracted, and finally the telescopic operation of the oil cylinder is realized;

3. the rear end surfaces of the oil outlet head and the oil inlet head are provided with pressure relief openings, automatic exhaust valves are arranged in the pressure relief openings, and the automatic exhaust valves are arranged in the pressure relief openings and used for discharging gas in the cylinder barrel and are used for unidirectional discharge and only discharging gas.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic diagram of an explosive structure according to the present utility model;

FIG. 3 is a schematic view of the left cylinder cover of the present utility model;

fig. 4 is a schematic view of the right cylinder cover structure of the present utility model.

In the figure: 1. a retractable head; 2. a bolt; 3. a left cylinder cover; 4. a cylinder; 5. oil inlet and outlet blocks; 6. a right cylinder cover; 7. a mounting head; 8. an oil inlet head; 9. an oil inlet pipe; 10. an oil inlet and outlet hole; 11. an oil outlet pipe; 12. an oil outlet head; 13. a piston rod; 14. a club head; 15. a dust ring; 16. a seal ring; 17. a buffer ring; 18. an oil groove; 19. an anti-fouling ring; 20. a main seal ring; 21. an oil feed communication hole; 22. and an oil outlet communication hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples: referring to fig. 1-4, a balance cylinder comprises a cylinder barrel 4, wherein the left end and the right end of the cylinder barrel 4 are respectively connected with a left cylinder cover 3 and a right cylinder cover 6 through a plurality of bolts 2, the balance cylinder is used for sealing the cylinder barrel 4, a buffer ring 17 is arranged in the left cylinder cover 3, a piston rod 13 is sleeved in the center of the left cylinder cover 3, the buffer ring 17 is used for buffering the piston rod 13 when the piston rod 13 moves, the buffer ring 17 is prevented from being excessively displaced to cause the cylinder to lose efficacy, the buffer ring 17 is sleeved on the outer surface of the piston rod 13, a dust ring 15 and a sealing ring 16 are also sleeved on the outer surface of the piston rod 13, the balance cylinder is used for sealing the inside of the cylinder barrel 4, the right end of the piston rod 13 is fixedly connected with a rod head 14, the left end of the piston rod 13 is fixedly connected with a telescopic head 1, the telescopic head 1 is used as the telescopic end of the cylinder, the right end of the cylinder barrel 4 is fixedly connected with the right cylinder cover 6, an antifouling ring 19 and a main sealing ring 20 are arranged in the right end of the cylinder barrel 4, the main sealing ring 20 is used for sealing the right end of the cylinder cover 6, the main sealing ring is used for sealing the right end of the piston rod 13, the right end of the cylinder cover 6 is connected with a mounting head 7 as a mounting part of the whole cylinder, the upper side wall of the cylinder barrel 4 is fixedly provided with an oil block 5, the upper end 5 and an oil inlet and outlet hole 5 and an oil outlet hole 11 are respectively connected with an oil inlet and outlet pipe 11 and an oil outlet pipe 4, an oil outlet pipe 4 and an inlet and an oil outlet pipe 4 are respectively connected with an oil outlet pipe and an oil outlet pipe 4 and an inlet pipe and an inlet end and an oil outlet pipe and an inlet end and an outlet pipe;

specifically, when the piston rod 13 in the oil cylinder extends, high-pressure oil is pumped in from the oil inlet and outlet hole 10 above the oil inlet and outlet block 5, the high-pressure oil enters the cylinder barrel 4 along the oil inlet pipe 9 and the oil inlet communication hole 21 in the oil inlet head 8, then enters the cylinder barrel 4 after being filtered by the anti-fouling ring 4, and the piston rod 13 is ejected out from the right end, and in the process, oil in the cylinder barrel on the left side of the piston rod 13 is pumped out from the oil inlet and outlet hole 10 below the oil inlet and outlet block 5, so that the oil cylinder is elongated;

similarly, when the piston rod 13 in the oil cylinder is retracted into the cylinder barrel 4, at the moment, high-pressure oil is pumped in from the oil inlet and outlet hole 10 below the oil inlet and outlet block 5, the high-pressure oil enters the cylinder barrel 4 along the oil outlet pipe 11 and the oil outlet communication hole 22 in the oil outlet head 12, and meanwhile, oil on the right side of the telescopic rod 13 in the cylinder barrel 4 is pumped out from the oil inlet and outlet hole 10 above the oil inlet and outlet block 5, so that the oil cylinder is retracted, and finally the telescopic operation of the oil cylinder is realized;

further, the surface of the buffer ring 17 is perforated with an oil groove 18, which is convenient for hydraulic oil to flow.

Further, the rear end surfaces of the oil outlet head 12 and the oil inlet head 8 are provided with pressure relief openings, automatic exhaust valves are arranged in the pressure relief openings, and the automatic exhaust valves are arranged in the pressure relief openings and used for discharging gas in the cylinder barrel 4 and are used for unidirectional discharge and can only discharge gas.

Further, the diameter of the rod head 14 is smaller than that of the piston rod 13, so that the piston rod 13 of the oil cylinder can be conveniently extended.

The foregoing is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto, and any person skilled in the art, who is within the scope of the present utility model, should make equivalent substitutions or modifications according to the technical scheme of the present utility model and the inventive concept thereof, and should be covered by the scope of the present utility model.

Claims (4)

1. The utility model provides a balanced hydro-cylinder, includes cylinder (4), its characterized in that: the left end and the right end of the cylinder barrel (4) are respectively connected with a left cylinder cover (3) and a right cylinder cover (6) through a plurality of bolts (2), a buffer ring (17) is arranged in the left cylinder cover (3), a piston rod (13) is sleeved at the center of the left cylinder cover (3), the buffer ring (17) is sleeved on the outer surface of the piston rod (13), a dust ring (15) and a sealing ring (16) are further sleeved on the outer surface of the piston rod (13), the right end of the piston rod (13) is fixedly connected with a rod head (14), the left end of the piston rod (13) is fixedly connected with a telescopic head (1), the right end of the cylinder barrel (4) is fixedly connected with the right cylinder cover (6), an anti-fouling ring (19) and a main sealing ring (20) are arranged in the right end of the cylinder barrel (4), a mounting head (7) is fixedly connected with the right end of the right cylinder cover (6), oil inlet and outlet blocks (5) are fixedly arranged on the side wall of the cylinder barrel (4), oil inlet and outlet blocks (10) are respectively arranged on the lower sides of the piston rod (5), the oil inlet and outlet pipe (3) are respectively connected with the oil inlet and outlet pipe (12) and the oil outlet pipe (3), the oil outlet head (12) and the oil inlet head (8) are internally provided with an oil outlet communication hole (22) and an oil inlet communication hole (21), the oil outlet pipe (11) is internally communicated with the cylinder barrel (4) through the oil outlet communication hole (22), and the oil inlet pipe (9) is internally communicated with the cylinder barrel (4) through the oil inlet communication hole (21).

2. The balance cylinder of claim 1, wherein: an oil groove (18) is formed in the surface of the buffer ring (17) in a penetrating mode.

3. A balance cylinder as claimed in claim 2, wherein: the rear end surfaces of the oil outlet head (12) and the oil inlet head (8) are provided with pressure relief openings, and an automatic exhaust valve is arranged in each pressure relief opening.

4. A balance cylinder according to claim 3, wherein: the diameter of the rod head (14) is smaller than the diameter of the piston rod (13).