CN209800412U - Double-acting hydraulic oil cylinder - Google Patents

Abstract

The utility model discloses a double-acting type hydraulic cylinder, which comprises a fixed frame, the support table angle is all installed to four corners in fixed frame bottom, the fuel feeding pump is through supplying oil pipe and hydraulic cylinder main part sealing connection, the fuel feeding pump is provided with the sealing washer with the articulated department that supplies the oil pipe, the piston is installed to the upper end of hydraulic cylinder main part, and the piston is connected with the fixed plate through first piston rod and second piston rod respectively, the outside of first piston rod and second piston rod has all been wrapped up buffer spring, the piston is provided with sealed bearing seal with the articulated department of hydraulic cylinder main part, the top both ends of fixed plate are fixed mutually with the plummer through first shock absorber post and second shock absorber post respectively, spring assembly is all installed to the outside of first shock absorber post and second shock absorber post. The utility model discloses a protection is sealed to hydraulic pump and hydraulic cylinder's junction, effectively prevents to take place the oil impregnate phenomenon, cushions the shock attenuation protection to it simultaneously, extension hydro-cylinder life.

Description

Double-acting hydraulic oil cylinder

Technical Field

The utility model relates to a pneumatic cylinder technical field specifically is a two effect formula hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs 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. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary. 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 motor performs a continuous rotary motion, while the hydraulic cylinder performs a reciprocating motion. The hydraulic cylinder has three types, namely a piston cylinder, a plunger cylinder and a swing cylinder, wherein the piston cylinder and the plunger cylinder realize reciprocating linear motion and output speed and thrust, and the swing cylinder realizes reciprocating swing and outputs angular speed (rotating speed) and torque. The cylinders may be used in combination of two or more or with other mechanisms to accomplish a particular function, other than individually.

The oil guide part of the existing double-acting hydraulic oil cylinder is easy to cause oil leakage, the normal operation of the oil cylinder is seriously influenced, and meanwhile, the piston is easy to loosen, so that the market urgently needs to develop a novel double-acting hydraulic oil cylinder.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-acting hydraulic cylinder to the oil leak phenomenon easily takes place for the oil guide part of the double-acting hydraulic cylinder who proposes in solving above-mentioned background art, has seriously influenced the normal operating of hydro-cylinder, and piston department easily takes place not hard up condition scheduling problem simultaneously.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a double-acting hydraulic cylinder, includes fixed frame, four corners in fixed frame bottom all install the support table angle, and install the fuel feed pump in the fixed frame, the fuel feed pump is through supplying oil pipe and hydraulic cylinder main part sealing connection, the fuel feed pump is provided with the sealing washer with the articulated department of supplying oil pipe, the piston is installed to the upper end of hydraulic cylinder main part, and the piston is connected with the fixed plate through first piston rod and second piston rod respectively, the outside of first piston rod and second piston rod all wraps up there is buffer spring, the articulated department of piston and hydraulic cylinder main part is provided with sealed bearing seal, the top both ends of fixed plate are fixed mutually with the plummer through first shock attenuation post and second shock attenuation post respectively, spring assembly is all installed to the outside of first shock attenuation post and second shock attenuation post.

Preferably, a sealing ring is arranged at the hinged position of the oil supply pipe and the hydraulic oil cylinder body.

Preferably, one end of the first shock absorbing column and one end of the second shock absorbing column extend to the outside of the fixed frame through the spring assembly.

preferably, one end of each of the first piston rod and the second piston rod extends into the hydraulic oil cylinder body through the buffer spring.

Preferably, the first shock absorbing column and the second shock absorbing column are symmetrically distributed along the center of the fixing plate.

Preferably, a fastening washer is arranged at the joint of the piston and the first and second piston rods.

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

(1) The joint of the oil supply pump and the oil supply pipe is provided with the sealing ring, the joint of the oil supply pipe and the hydraulic oil cylinder main body is provided with the sealing ring, and the sealing assembly is arranged at the joint of the oil supply pipe and the equipment, so that the oil leakage and oil leakage at the joint can be effectively prevented, and the stable operation of the oil pump is guaranteed;

(2) The hinge joint of the piston and the first piston rod and the hinge joint of the piston and the second piston rod are provided with fastening gaskets, the piston rod can be stabilized by arranging the fastening gaskets at the hinge joint of the piston and the piston rod, the piston rod is prevented from loosening during operation, the hinge joint of the piston and the hydraulic oil cylinder body is provided with a sealing shaft seal, and the sealing shaft seal can seal and reinforce the piston and prevent the piston from friction collision with the hydraulic oil cylinder body;

(3) The outside of first piston rod and second piston rod has all wrapped up buffer spring, and buffer spring can cushion first piston rod and second piston rod and protect, and the top both ends of fixed plate are fixed mutually with the plummer through first shock attenuation post and second shock attenuation post respectively, and spring unit is all installed to the outside of first shock attenuation post and second shock attenuation post, installs the shock attenuation post and can cushion the absorption to the top load, prevents that it from causing the pressure loss to the support component in below.

Drawings

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

FIG. 2 is a schematic structural view of a first shock-absorbing column of the present invention;

FIG. 3 is a front view of the hydraulic cylinder body of the present invention;

Fig. 4 is a schematic structural diagram of the sealing ring of the present invention.

In the figure: 1. fixing the frame; 2. a first shock-absorbing post; 3. a bearing table; 4. a second shock-absorbing post; 5. a first piston rod; 6. an oil supply pump; 7. an oil supply pipe; 8. a seal ring; 9. supporting the table corner; 10. a spring assembly; 11. a fixing plate; 12. a second piston rod; 13. a hydraulic cylinder body; 14. a piston; 15. a buffer spring; 16. and sealing the shaft seal.

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.

referring to fig. 1-4, the present invention provides an embodiment: a double-acting hydraulic cylinder comprises a fixed frame 1, supporting table corners 9 are mounted at four corners of the bottom of the fixed frame 1, an oil supply pump 6 is mounted on the fixed frame 1, the oil supply pump 6 is connected with a hydraulic cylinder body 13 in a sealing mode through an oil supply pipe 7, a sealing ring 8 is arranged at the hinged position of the oil supply pump 6 and the oil supply pipe 7, a piston 14 is mounted at the upper end of the hydraulic cylinder body 13, the piston 14 is connected with a fixed plate 11 through a first piston rod 5 and a second piston rod 12 respectively, buffer springs 15 wrap the outer portions of the first piston rod 5 and the second piston rod 12 respectively, the buffer springs 15 can buffer and protect the first piston rod 5 and the second piston rod 12, a sealing shaft seal 16 is arranged at the hinged position of the piston 14 and the hydraulic cylinder body 13, the sealing shaft seal 16 can seal and reinforce the piston 14 to prevent the piston 14 from being, the top both ends of fixed plate 11 are fixed mutually with plummer 3 through first shock attenuation post 2 and second shock attenuation post 4 respectively, and spring assembly 10 is all installed to the outside of first shock attenuation post 2 and second shock attenuation post 4.

Further, the joint of the oil supply pipe 7 and the hydraulic oil cylinder body 13 is provided with the sealing ring 8, and the joint of the oil supply pipe 7 and the equipment is provided with the sealing assembly, so that oil leakage and oil leakage at the joint can be effectively prevented, and stable operation of the oil pump is guaranteed.

Further, the spring assembly 10 is passed to the outside that extends to fixed frame 1 to the one end of first shock strut 2 and second shock strut 4, installs the shock strut and can cushion the absorption to the top load, prevents that it from causing the pressure loss to the support member in below.

Further, one ends of the first and second piston rods 5 and 12 extend to the inside of the hydraulic cylinder body 13 through the buffer spring 15.

Further, the first shock absorbing column 2 and the second shock absorbing column 4 are symmetrically distributed along the center of the fixing plate 11.

further, the hinged part of the piston 14 and the first piston rod 5 and the hinged part of the second piston rod 12 are provided with fastening washers, and the piston rod can be stabilized by arranging the fastening washers at the hinged part of the piston 14 and the piston rod, so that the piston rod is prevented from loosening during operation.

The working principle is as follows: when the oil supply device is used, the oil supply pump 6 is hermetically connected with the hydraulic oil cylinder main body 13 through the oil supply pipe 7, the hinge joint of the oil supply pump 6 and the oil supply pipe 7 is provided with the sealing ring 8, the hinge joint of the oil supply pipe 7 and the hydraulic oil cylinder main body 13 is provided with the sealing ring 8, the sealing assembly is arranged at the joint of the oil supply pipe 7 and equipment, the oil leakage and oil leakage at the hinge joint can be effectively prevented, the stable operation of the oil pump is ensured, the upper end of the hydraulic oil cylinder main body 13 is provided with the piston 14, the piston 14 is respectively connected with the fixing plate 11 through the first piston rod 5 and the second piston rod 12, the outer parts of the first piston rod 5 and the second piston rod 12 are respectively wrapped with the buffer spring 15, the buffer spring 15 can buffer and protect the first piston rod 5 and the second piston rod 12, the upper two ends of the fixing plate 11 are respectively, spring assembly 10 is all installed to the outside of first shock attenuation post 2 and second shock attenuation post 4, installs the shock attenuation post and can carry out the buffering absorption to the top load, prevents that it from causing the pressure loss to the lower part supporting member, and piston 14 and hydraulic cylinder main part 13's articulated department is provided with sealed bearing seal 16, and sealed bearing seal 16 can seal the reinforcement to piston 14, prevents that it from taking place friction and collision with hydraulic cylinder main part 13.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims (6)

1. A double-acting hydraulic oil cylinder comprises a fixed frame (1) and is characterized in that supporting table corners (9) are mounted at four corners of the bottom of the fixed frame (1), an oil supply pump (6) is mounted on the fixed frame (1), the oil supply pump (6) is in sealing connection with a hydraulic oil cylinder main body (13) through an oil supply pipe (7), a sealing ring (8) is arranged at the hinged position of the oil supply pump (6) and the oil supply pipe (7), a piston (14) is mounted at the upper end of the hydraulic oil cylinder main body (13), the piston (14) is connected with a fixed plate (11) through a first piston rod (5) and a second piston rod (12) respectively, buffer springs (15) are wrapped at the outer parts of the first piston rod (5) and the second piston rod (12), a sealing shaft seal (16) is arranged at the hinged position of the piston (14) and the hydraulic oil cylinder main body (13), the top both ends of fixed plate (11) are fixed mutually with plummer (3) through first shock attenuation post (2) and second shock attenuation post (4) respectively, spring unit (10) are all installed to the outside of first shock attenuation post (2) and second shock attenuation post (4).

2. A double acting hydraulic ram according to claim 1 wherein: and a sealing ring (8) is arranged at the hinged part of the oil supply pipe (7) and the hydraulic oil cylinder main body (13).

3. A double acting hydraulic ram according to claim 1 wherein: one end of the first shock absorption column (2) and one end of the second shock absorption column (4) penetrate through the spring assembly (10) and extend to the outside of the fixed frame (1).

4. a double acting hydraulic ram according to claim 1 wherein: one ends of the first piston rod (5) and the second piston rod (12) penetrate through the buffer spring (15) and extend into the hydraulic oil cylinder body (13).

5. A double acting hydraulic ram according to claim 1 wherein: the first shock absorption column (2) and the second shock absorption column (4) are symmetrically distributed along the center of the fixing plate (11).

6. A double acting hydraulic ram according to claim 1 wherein: and a fastening washer is arranged at the hinged part of the piston (14) and the first piston rod (5) and the second piston rod (12).