CN212479988U

CN212479988U - Damping oil cylinder for reducing swing of wood clamping fork

Info

Publication number: CN212479988U
Application number: CN202020669257.7U
Authority: CN
Inventors: 王凯; 董立队; 钟京昌; 任清坡; 于吉利; 张学强
Original assignee: Shandong Lingong Construction Machinery Co Ltd
Current assignee: Shandong Lingong Construction Machinery Co Ltd
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-02-05
Anticipated expiration: 2030-04-27

Abstract

The utility model discloses a reduce swing damping hydro-cylinder of wood clamping fork, it belongs to engineering machine tool technical field. The rotary wood clamping fork overcomes the defects that a system is complex and the cost is high in the prior art when a traditional rotary wood clamping fork swings back and forth. The main structure of the double-piston-rod oil cylinder comprises a double-piston-rod oil cylinder, the double-piston-rod oil cylinder comprises a cylinder barrel, a piston capable of sliding back and forth along the inner wall of the cylinder barrel is arranged in the cylinder barrel, a small-cavity piston rod and a large-cavity piston rod are respectively installed on two sides of the piston, a small-cavity oil port is formed in the small-cavity end of the double-piston-rod oil cylinder, a large-cavity oil port is formed in the large-cavity end of the double-piston-rod oil cylinder, the small-cavity oil port is connected with one end. The utility model discloses mainly used loader.

Description

Damping oil cylinder for reducing swing of wood clamping fork

The technical field is as follows:

the utility model belongs to the technical field of engineering machine tool, specifically speaking especially relates to a reduce swing damping hydro-cylinder of wood clamping fork.

Background art:

the loader industry is increasingly competitive, and the development of loader differentiated products becomes a new profit growth point, wherein large rotary wood clamping forks for ports are increasingly demanded, but the requirements on reliability and controllability are also increasingly high.

After the wood clamping fork unloads the materials, the wood clamping fork can swing back and forth under the action of inertia, the back and forth swing of the rotary wood clamping fork is reasonably controlled, the operation efficiency of products can be improved, the manipulation strength is reduced, and the use requirements of customers are met. FIG. 2 shows a prior art hydraulic schematic diagram, in which 1, when the pilot handle is not operated, the swing cylinder does not work, and the fork returns to a vertically downward position from a front-back swing position under the action of gravity, which takes a long time; 2. when the handle is operated, the oil inlet and the oil return of the swing oil cylinder are controlled, so that the front and back shaking of the fork is reduced, the fork is kept vertically downward, and the next material clamping is completed. The large-scale rotary wood clamping fork swings back and forth, and the swing oil cylinder is controlled by the pilot handle, so that the swing is reduced.

The invention content is as follows:

the to-be-solved technical problem of the utility model is to overcome prior art not enough, provide a reduce and press from both sides wooden fork wobbling damping hydro-cylinder, it can reduce the oscillating frequency, improves work efficiency, and can adjust as required.

In order to achieve the above purpose, the utility model is realized by adopting the following technical scheme:

the utility model provides a reduce swing damping hydro-cylinder of wood clamping fork, includes the double-piston rod hydro-cylinder, the double-piston rod hydro-cylinder includes the cylinder, be equipped with in the cylinder and make a round trip gliding piston along the inner wall of cylinder, a loculus piston rod and big chamber piston rod are installed respectively to the both sides of piston, the loculus end of double-piston rod hydro-cylinder is equipped with the loculus hydraulic fluid port, and big chamber end is equipped with big chamber hydraulic fluid port, the loculus hydraulic fluid port passes through the coupling and is connected with the one end of ball valve, the other end of ball valve passes through the rubber tube and is connected.

Preferably, a cylinder barrel of the double-piston-rod oil cylinder is provided with a cylinder cover exhaust hole.

Preferably, the outer side of the cylinder barrel of the double-piston-rod oil cylinder is provided with a hinge shaft.

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

1. the utility model solves the swing problem of the wood clamping fork through a damping oil cylinder, does not need oil source, saves a reversing control valve and a pilot control valve, and has simple structure and low cost;

2. the utility model discloses a double piston rod hydro-cylinder guarantees that the total volume of fluid remains unchanged in the motion process, and the adjustment is simple, can be according to the weight and the operating efficiency of material, and the opening volume size of adjustment ball valve controls the velocity of motion of damping hydro-cylinder to reduce the swing frequency of fork.

Description of the drawings:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a hydraulic schematic diagram of the prior art.

In the figure: 1. a small-cavity piston rod; 2. a small-cavity cylinder cover; 3. a pipe joint; 4. a small cavity oil port; 5. a ball valve; 6. a cylinder cover exhaust hole; 7. a hose; 8. a piston; 9. a hinge shaft; 10. a large cavity oil port; 11. a large-cavity piston rod; 12. a large-cavity cylinder cover; 13. a cylinder barrel.

The specific implementation mode is as follows:

the present invention will be further described with reference to the following specific embodiments and accompanying drawings.

Example 1:

as shown in figure 1, a damping oil cylinder for reducing the swing of a wood clamping fork comprises a double-piston-rod oil cylinder, the dynamic balance of hydraulic oil is realized through the double-piston-rod oil cylinder, the double-piston-rod oil cylinder comprises a cylinder barrel 13, a piston 8 capable of sliding back and forth along the inner wall of the cylinder barrel 13 is arranged in the cylinder barrel 13, two sides of the piston 8 are respectively provided with a small-cavity piston rod 1 and a large-cavity piston rod 11, the small-cavity piston rod 1 is arranged at the small-cavity end of the double-piston-rod oil cylinder, the large-cavity piston rod 11 is arranged at the large-cavity end, the small-cavity end of the cylinder barrel 13 passes through the small-cavity piston rod 1 and then is hermetically mounted through a small-cavity cylinder cover 2, the large-cavity end passes through the large-cavity piston rod 11 and then is hermetically mounted through a large-cavity cylinder cover 12, a small-cavity oil port 4 is arranged at the small-cavity end, the other end of the ball valve 5 is connected with a large cavity oil port 10 through a rubber tube 7. The opening of the ball valve 5 is adjustable.

Example 2:

the utility model provides a reduce swing damping hydro-cylinder of wood clamping fork, be equipped with cylinder cover exhaust hole 6 on the cylinder 13 of double piston pole hydro-cylinder, cylinder cover exhaust hole 6 is close to loculus cylinder cap 2, and cylinder cover exhaust hole 6 is used for discharging the gas in the double piston pole hydro-cylinder, conveniently refuels and exhaust-treatment. The outer side of a cylinder barrel 13 of the double-piston-rod oil cylinder is provided with a hinge shaft 9, a rod head of the small-cavity piston rod 1 is provided with a trunnion, and the cylinder barrel 13 is connected by the hinge shaft 9. The other portions are the same as in example 1.

The utility model discloses assemble on the complete machine, big chamber hydraulic fluid port 10 and loculus hydraulic fluid port 4 should be down.

The oiling and exhausting process comprises the following steps: when the piston 8 contacts with the large-cavity cylinder cover 12, oil is filled through the small-cavity oil port 4, the ball valve 5 is in a completely opened state, then the ball valve 5 and the pipeline are assembled on a vehicle downwards, and the cylinder cover exhaust hole 6 is adopted to exhaust gas.

The utility model discloses a theory of operation does:

in the process of swinging the wood clamping fork back and forth, when swinging forwards, the small cavity piston rod 1 of the swinging oil cylinder is driven to withdraw, hydraulic oil of the large cavity oil port 10 passes through the rubber pipe 7 and the throttling hole of the ball valve 5 to reach the small cavity oil port 4, and in the process, due to the action of the ball valve 5, the large cavity of the oil cylinder generates pressure to balance the force swinging forwards.

When the swing cylinder swings backwards, the large cavity piston rod 11 of the swing cylinder is driven to retract, hydraulic oil of the small cavity oil port 4 passes through the throttling hole of the ball valve 5 and the rubber tube 7 to the large cavity oil port 10, and in the process, due to the effect of the ball valve 5, the small cavity of the cylinder generates pressure to balance the force of backward swing. This reduces the oscillation amplitude and frequency of the damping cylinder.

Claims

1. The utility model provides a reduce swing damping hydro-cylinder of wood clamping fork which characterized in that: including the double-piston rod hydro-cylinder, the double-piston rod hydro-cylinder includes cylinder (13), be equipped with piston (8) that can make a round trip to slide along the inner wall of cylinder (13) in cylinder (13), one loculus piston rod (1) and big chamber piston rod (11) are installed respectively to the both sides of piston (8), the loculus end of double-piston rod hydro-cylinder is equipped with loculus hydraulic fluid port (4), and the loculus end is equipped with big chamber hydraulic fluid port (10), loculus hydraulic fluid port (4) are connected with the one end of ball valve (5) through coupling (3), the other end of ball valve (5) passes through rubber tube (7) and is connected with big chamber hydraulic fluid port (10).

2. The damping cylinder for reducing the swing of the wood clamping fork according to claim 1, characterized in that: and a cylinder barrel (13) of the double-piston-rod oil cylinder is provided with a cylinder cover exhaust hole (6).

3. The damping cylinder for reducing the swing of the wood clamping fork according to claim 1 or 2, characterized in that: and a hinge shaft (9) is arranged on the outer side of a cylinder barrel (13) of the double-piston-rod oil cylinder.