CN207879752U - A kind of hydraulic cylinder with accumulator - Google Patents

Abstract

The utility model provides a kind of hydraulic cylinder with accumulator, includes the cylinder barrel with hydraulic fluid port, and cylinder barrel side is fixed with bracket, and accumulator is equipped on bracket, and the hydraulic fluid port of accumulator and the hydraulic fluid port of cylinder barrel pass through pipeline connection；Four-way valve block is fixed at cylinder oil port, it is connected to cylinder oil port with four interconnected pipelines, the first pipeline in valve block, the second pipeline is connected to the hydraulic fluid port of accumulator, third piping connection pressure sensitive device and overflow valve, the hydraulic fluid flow paths of the 4th piping connection hydraulic cylinder；Cylinder oil port, the first pipeline and the 4th pipeline are linearly distributed, and overflow valve is embedded in valve block；Accumulator is gas type accumulator, and the gas medium of accumulator is nitrogen, and the air inlet for supplementing nitrogen is equipped on gas type accumulator, and air inlet is equipped with the pressure detecting table for incuding gas atmosphere；Air inlet is flexible coupling by high-voltage tube nitrogen refilling station.The utility model has the beneficial effects that：The design has the advantages of few occupied space, stable work in work.

Description

A kind of hydraulic cylinder with accumulator

Technical field

The utility model is related to hydraulic machinery technical fields, more particularly, to a kind of hydraulic cylinder with accumulator.

Background technology

Currently, hydraulic cylinder is common engineering mechanical components comprising cylinder barrel and the piston rod in cylinder barrel and work Plug is constituted, and when hydraulic cylinder is used for system pressurize, generally requires connection accumulator.Conventional hydraulic oil cylinder connects the side of accumulator Method is that one holder of setting links together oil cylinder and accumulator to install and fix accumulator, then with pipeline.In addition, in order to Ensure that the safety of hydraulic cylinder system also needs to one overflow valve of connection, overflow valve be also required to using holder and pipeline installing and Connection.Therefore, the installation consumptive material of traditional accumulator and overflow valve is more and occupied space is larger, and Performance And Reliability compared with Difference.In addition, traditional accumulator is spring and piston accumulator, it is only suitable for low capacity, low-pressure system, and sealing performance Difference, pressure sensitive is insensitive, so causing accumulator integral working poor.

It can be seen that how to work out a kind of hydraulic cylinder with accumulator, have equipment entirety occupied space it is few and store Can device working performance more preferably the advantages of, be a problem to be solved by those skilled in the art.

Invention content

To solve the above-mentioned problems, the utility model provides a kind of hydraulic cylinder with accumulator.

A kind of hydraulic cylinder with accumulator of the utility model, includes the cylinder barrel with hydraulic fluid port, and the cylinder barrel side passes through Bolt is fixedly connected with bracket, and accumulator, the oil of the hydraulic fluid port of the accumulator and the cylinder barrel are installed on the bracket Mouth passes through pipeline connection；It is fixed with four-way valve block at the cylinder oil port, four interconnected pipelines are carried in the valve block, Wherein the first pipeline is connected to the cylinder oil port, and the second pipeline is connected to the hydraulic fluid port of the accumulator, third piping connection pressure Power sensing device and overflow valve for making the cylinder oil port hydraulic pressure remain stable, the liquid of the 4th piping connection hydraulic cylinder Pressure oil oil circuit；The cylinder oil port, the first pipeline and the 4th pipeline are linearly distributed, and the overflow valve is embedded in the valve block； The accumulator is gas type accumulator, and the gas medium of the gas type accumulator is nitrogen, on the gas type accumulator Air inlet for supplementing nitrogen is installed, the air inlet is equipped with the pressure detecting table for incuding gas atmosphere；It is described Air inlet is flexible coupling by high-voltage tube nitrogen refilling station.

Further, the nitrogen refilling station includes nitrogen cylinder and nitrogen vehicle.

Further, the air inlet is tightly connected the nitrogen cylinder and nitrogen vehicle by high-pressure hose respectively.

Further, air pressure detection instrument and air-flow flow rate detection are installed on the exhaust outlet of the nitrogen cylinder and nitrogen vehicle Instrument.

Further, it is the accumulation of energy by the nitrogen cylinder when the accumulator is less than or equal to 8MPa using pressure Device supplements nitrogen；It is that the accumulator supplements nitrogen by the nitrogen vehicle when the accumulator is more than 8MPa using pressure.

Further, the high-pressure hose length is more than 10m, and the high-pressure hose is enterprising by being orderly wound collecting drum Row storage.

A kind of hydraulic cylinder with accumulator of the utility model, has the following advantages compared with prior art：

First, in the hydraulic cylinder with accumulator, accumulator is fixed on to the side wall of cylinder barrel, and utilize four-way valve block will A plurality of pipeline is connected to cylinder oil port, and overflow valve insertion is mounted in four-way valve block, more saves space.Secondly, the storage Energy device is gas type accumulator, and for this accumulator when system pressure is more than accumulator internal pressure, fluid compressed gas will be oily Pressure in liquid is converted into gas internal energy；When system pressure is less than accumulator internal pressure, the oil in accumulator is in high pressure gas External system is flowed under the action of body, is released energy；It can be seen that the accumulator disclosure satisfy that high-pressure system demand, and with good Leakproofness and working performance.In addition, for gas type accumulator, it is the pass of this accumulator to select the blowing pressure appropriate Key, thus the utility model is to promote the scope of application of the accumulator, thus by nitrogen refilling station be designed as nitrogen cylinder and Nitrogen vehicle.People can be inflated and be vented to accumulator according to actual demand in this way, which makes the utility model application More flexible, applicability is also stronger.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is accumulator and its structural schematic diagram of nitrogen refilling station in the utility model.

In figure：1, cylinder barrel, 2, overflow valve, 3, sealing ring, 4, valve block, 5, accumulator, 6, piston rod, 7, piston, 8, collect Roller, 9, nitrogen cylinder, 10, nitrogen vehicle.

Specific implementation mode

In order to be better understood from the utility model, with reference to specific embodiments and the drawings to the utility model into advance one The description of step.

As shown in Figs. 1-2, a kind of hydraulic cylinder with accumulator includes the cylinder barrel 1 with hydraulic fluid port, the oil of the cylinder barrel 1 Mouth is used for the inflow and outflow of hydraulic oil.Piston rod 6 is installed in cylinder barrel 1, piston rod 6 stretches into one end inside cylinder barrel 1 equipped with work Plug 7, when hydraulic oil pushes piston 7, piston 7 can drive piston rod 6 reciprocal.

1 side of the cylinder barrel has been bolted to connection bracket, and accumulator 5 is installed on the bracket, described The hydraulic fluid port of accumulator 5 and the hydraulic fluid port of the cylinder barrel 1 pass through pipeline connection.Accumulator 5 is the container that can store hydraulic oil, accumulator 5 are fixed on by bracket on 1 outer wall of cylinder barrel, and bracket can utilize the diversified forms such as prefabricated clamp in the prior art.

1 oil port of the cylinder barrel is fixed with four-way valve block 4, and four interconnected pipelines are carried in the valve block 4, according to Orientation in figure：The first pipeline that opening is located at 4 lower section of valve block is connected to the hydraulic fluid port of cylinder barrel 1；Opening is located at the second of 4 right of valve block Pipeline is connected to the hydraulic fluid port of accumulator 5；Third pipeline and pressure sensitive device (in Fig. 1 non-table of the opening positioned at 4 left of valve block Show) connection；Opening is located at the outer liquid pressure oil oil communication of 4 top the 4th pipeline and hydraulic cylinder of valve block.

Wherein, it is equipped with sealing ring 3 at the first pipeline opening and the cooperation of the hydraulic fluid port of cylinder barrel 1, valve block 4 can be solid by bolt It is scheduled on the hydraulic fluid port position of cylinder barrel 1.As seen from Figure 1, in the third pipeline for being used to be connected to pressure sensitive device, it is equipped with overflow valve 2, overflow valve 2 is inlaid in valve block 4, more saves space.The hydraulic fluid port of cylinder barrel 1, the first pipeline and the 4th pipeline linearly divide Cloth keeps the running of hydraulic power oil in cylinder barrel 1 between external oil circuit more unobstructed convenient for reducing oil circuit resistance.

The accumulator 5 is gas type accumulator, such as gas-liquid direct-contact, piston type, diaphragm accumulator are It can.The gas medium of the gas type accumulator is nitrogen, and this gas medium inertia is stronger, so using safer.

Air inlet for supplementing nitrogen is installed, the air inlet is equipped with for incuding on the gas type accumulator The pressure detecting table of gas atmosphere；The air inlet is flexible coupling by high-voltage tube nitrogen refilling station.

In order to keep the application range of the accumulator 5 wider, so the nitrogen refilling station is designed as to include nitrogen cylinder 9 With nitrogen vehicle 10, and the air inlet is tightly connected the nitrogen cylinder 9 and nitrogen vehicle 10 by high-pressure hose respectively.

When the accumulator 5 is less than or equal to 8MPa using pressure, supplemented for the accumulator 5 by the nitrogen cylinder 9 Nitrogen；It is that the accumulator 5 supplements nitrogen by the nitrogen vehicle 10 when the accumulator 5 is more than 8MPa using pressure.Institute It states and flow control valve is installed on the exhaust outlet of nitrogen cylinder 9 and the nitrogen vehicle 10.

Flow when nitrogen storage and the exhaust in the nitrogen cylinder 9 and nitrogen vehicle 10, institute are understood in order to facilitate people To be equipped with air pressure detection instrument and air-flow flow rate detection instrument on the exhaust outlet of the nitrogen cylinder 9 and nitrogen vehicle 10.

In order to make the distance between the accumulator 5 and nitrogen refilling station that can carry out installation regulation and control according to actual demand, So being more than 10m by the high-pressure hose Design of length.It is more convenient when in order to make the high-pressure hose apply, avoid it from twining It is suitable around being difficult to smooth out with the fingers together, so the high-pressure hose is stored by being orderly wound on collecting drum 8.Due to high pressure Pipe hose quality is light, and in winding, state more loosens, and will not just cause the high pressure being wrapped in the collecting drum 8 soft in this way Pipe is difficult to supplying nitrogen.In addition, since high-pressure hose quality is not excessively soft namely it keeps with certain tubular shape Ability, so nitrogen will not be caused to be jammed in the situation in high-pressure hose.

The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model Embodiment should not be considered as limiting the scope of the present invention.It is all to become according to impartial made by the scope of the utility model Change and improve etc., it should all still belong within this patent covering scope.

Claims (6)

1. a kind of hydraulic cylinder with accumulator includes the cylinder barrel (1) with hydraulic fluid port, it is characterised in that：Cylinder barrel (1) side It has been bolted to connection bracket, accumulator (5), the hydraulic fluid port of the accumulator (5) and institute are installed on the bracket The hydraulic fluid port for stating cylinder barrel (1) passes through pipeline connection；Cylinder barrel (1) oil port is fixed with four-way valve block (4), and the valve block (4) is interior With four interconnected pipelines, wherein the first pipeline is connected to the cylinder barrel (1) hydraulic fluid port, the second pipeline and the accumulator (5) hydraulic fluid port connection, third piping connection pressure sensitive device and for making the cylinder barrel (1) hydraulic fluid port hydraulic pressure remain stable Overflow valve (2), the hydraulic fluid flow paths of the 4th piping connection hydraulic cylinder；Cylinder barrel (1) hydraulic fluid port, the first pipeline and the 4th pipeline It is linearly distributed, in the embedded valve block (4) of the overflow valve (2)；The accumulator (5) is gas type accumulator, the gas The gas medium of body formula accumulator is nitrogen, and the air inlet for supplementing nitrogen is equipped on the gas type accumulator, described Air inlet is equipped with the pressure detecting table for incuding gas atmosphere；The air inlet is flexible coupling by high-voltage tube nitrogen supplement It stands.

2. the hydraulic cylinder according to claim 1 with accumulator, it is characterised in that：The nitrogen refilling station includes nitrogen Bottle (9) and nitrogen vehicle (10).

3. the hydraulic cylinder according to claim 2 with accumulator, it is characterised in that：The air inlet passes through high-pressure hose It is tightly connected the nitrogen cylinder (9) and nitrogen vehicle (10) respectively.

4. the hydraulic cylinder according to claim 2 with accumulator, it is characterised in that：The nitrogen cylinder (9) and nitrogen vehicle (10) air pressure detection instrument and air-flow flow rate detection instrument are installed on exhaust outlet.

5. the hydraulic cylinder according to claim 3 with accumulator, it is characterised in that：When the accumulator (5) uses pressure It is that the accumulator (5) supplements nitrogen by the nitrogen cylinder (9) when power is less than or equal to 8MPa；When the accumulator (5) use It is that the accumulator (5) supplements nitrogen by the nitrogen vehicle (10) when pressure is more than 8MPa.

6. the hydraulic cylinder with accumulator according to any one of claim 1-5, it is characterised in that：The high pressure is soft Length of tube is more than 10m, and the high-pressure hose is stored by being orderly wound on collecting drum (8).