CN207830265U - The pressurized construction of empty oil pressurized cylinder and its empty oily pressurized cylinder - Google Patents

Abstract

The utility model is related to a kind of pressurized construction of empty oily pressurized cylinder and its empty oily pressurized cylinders, mainly if a charged piston there is perforation among the charged piston in the plenum of empty oily pressurized cylinder, perforation epimere is equipped with inner groovy and is equipped with internal thread for placing a washer, hypomere；Axis is pressurized on one, supercharging axis upper end is mounted on pneumatics portion on this, and lower end has protrusion, has internal thread in the protrusion, be inserted into the perforation epimere of the charged piston, support and schedule the charged piston；One bolt locks supercharging axis on the charged piston and this integrally；It is once pressurized axis, which is mounted on oil pressure portion, and upper end has screw thread, is screwed together in the perforation internal thread of the charged piston.By the way that booster rod is changed to two sections formula and changes composite structure, reaches and charged piston component coefficient of losses and conveniently replaced effect is greatly reduced.

Description

The pressurized construction of empty oil pressurized cylinder and its empty oily pressurized cylinder

Technical field

The utility model is related to a kind of pressurized constructions of empty oily pressurized cylinder.

Background technology

Existing empty oil supercharging cylinder structure, substantially all as shown in Figure 1, Figure 2, Figure 3 shows, an empty oily pressurized cylinder is divided into pneumatics portion 1, plenum 10, oil pressure portion 2.The plenum 10 includes that a cylinder body 11, one is pressurized axis 12, the cylinder body 11 and 12 upper end of supercharging axis Group sets pneumatics portion 1, and lower end group sets oil pressure portion 2.12 middle groups of supercharging axis set a charged piston 13, and 11 top of cylinder body is made to be formed Gas chamber 14；The 11 lower part group of cylinder body sets a resetting spring 15.When pneumatics portion 1, which controls gas, injects gas chamber 14, the gas of gas chamber 14 Pressure will push the charged piston 13 to be moved down together with the supercharging axis 12, after the charged piston 13 shifts bottom onto down, the gas chamber Gas in 14 will be dissipated from bleeder port 3 to overflow, and 14 pressure of gas chamber reduces at this time, which makes charged piston 13 by elastic force Up move, when the charged piston 13 be reset spring 15 shift onto top positioning after, pneumatics portion 1 will control again gas injection gas Room 14, such repetitive cycling make the charged piston 13 pump together with the supercharging axis 12, drive the hydraulic pressure in oil pressure portion 2 Oil contributes and acts on workpiece to be processed.

In existing supercharging 12 groups of structures for setting charged piston 13 of axis, which, which is integrally formed centre, has bulge loop 13 locking groups of the supercharging axis 12 and the charged piston are set one by 120 metal shaft by a fixing piece 16, above-mentioned structure, Exist in fact and has the disadvantage that：

(1) process that pneumatics is converted into oil pressure is reciprocal progress, and must notice the sealing of the gas chamber 14 set by the plenum 10 Property, therefore fixing piece 16, charged piston 13 and supercharging axis 12 set in plenum 10, there need to be lucky corresponding shape ability Engaging, therefore its processing and manufacturing process is relatively complicated, permissible mismachining tolerance range is smaller, implies that part manufacturing cost is higher.

(2) the supercharging axis 12 is integrally formed metal shaft, then cut processing goes out intermediate bulge loop 120, if the supercharging axis 12 slight curving, abrasions or intermediate bulge loop 120 are worn, and can be worn the other elements of connection simultaneously, when repairing, will be needed to change The whole group fixing piece 16, charged piston 13 and supercharging axis 12, imply that maintenance cost is higher.

Utility model content

The purpose of this utility model is that the charged piston of empty oily pressurized cylinder is greatly reduced the shortcomings that improving the above-mentioned prior art Component consumes frequency, reaches and extends Use Limitation, maintains more easy effect.

In order to achieve the above object, the utility model provides a kind of pressurized construction of empty oily pressurized cylinder, it includes：

There is perforation, perforation epimere to be equipped with inner groovy for placing a washer, hypomere for one charged piston, charged piston centre Equipped with internal thread；

Axis is pressurized on one, supercharging axis one end has protrusion on this, has internal thread in the protrusion, is inserted into the increasing from top to bottom The perforation epimere for pressing piston, against being positioned at the charged piston；

One bolt, the bolt is from the bottom up by supercharging axis locking one on the charged piston and this；It is once pressurized axis, under this Being pressurized axis one end has screw thread, is screwed together in the perforation internal thread of the charged piston.

Preferably, which has annular groove, for placing a washer.

The utility model also provides a kind of empty oily pressurized cylinder, and it includes the pressurized constructions of empty oily pressurized cylinder above-mentioned.

The beneficial effects of the utility model are：The combination of supercharging axis and charged piston is improved, major technique is：In sky The plenum of oily pressurized cylinder if a charged piston there is perforation, perforation epimere to be equipped with inner groovy for placing among the charged piston One washer, hypomere are equipped with internal thread；Axis is pressurized on one, supercharging axis upper end is mounted on pneumatics portion on this, and lower end has protrusion, this is convex There is internal thread in portion, be inserted into the perforation epimere of the charged piston from top to bottom, support and schedule the charged piston；One bolt, the spiral shell Bolt is from the bottom up by supercharging axis locking one on the charged piston and this；It is once pressurized axis, which is mounted on oil Splenium, upper end have screw thread, are screwed together in the perforation internal thread of the charged piston.By the way that booster rod is changed to two sections formula and is changed Become composite structure, reaches and charged piston component coefficient of losses and conveniently replaced effect is greatly reduced.

Description of the drawings

Fig. 1 is prior art stereogram exploded view.

Fig. 2 is that prior art piston moves diagrammatic side-view cross-sectional schematic diagram down.

Fig. 3 is that prior art piston up moves diagrammatic side-view cross-sectional schematic diagram.

Fig. 4 is the utility model stereogram exploded view.

Fig. 5 is that the utility model piston moves diagrammatic side-view cross-sectional schematic diagram down.

Fig. 6 is that the utility model piston up moves diagrammatic side-view cross-sectional schematic diagram.

Reference sign：

The prior art：

1 pneumatics portion

2 oil pressure portions

3 bleeder ports

10 plenum

11 cylinder bodies

12 supercharging axis

120 bulge loops

13 charged pistons

14 gas chambers

15 resetting springs

16 fixing pieces

The utility model：

20 plenum

21 charged pistons

210 perforation

211 inner groovies

212 washers

213 internal threads

214 annular grooves

215 washers

Axis is pressurized on 22

220 protrusions

221 internal threads

23 bolts

24 times supercharging axis

240 screw threads.

Specific implementation mode

Fig. 4, Fig. 5, Fig. 6 are please referred to, has been mainly oily pressurized cylinder, is divided into pneumatics portion 1, plenum 20, oil pressure portion 2.It should Plenum 20 includes a cylinder body 11, and 11 upper end group of cylinder body sets pneumatics portion 1, lower end group sets oil pressure portion 2 for this, and inside sets a charged piston 21, which there is perforation 210,210 epimeres of perforation to be equipped with inner groovy 211 for one washer 212 of placement, and hypomere is set There is internal thread 213；Axis 22 is pressurized on one, 22 upper end of supercharging axis is mounted on pneumatics portion 1 on this, and lower end has protrusion 220, the protrusion There is internal thread 221 in 220, be inserted into 210 epimere of perforation of the charged piston 21 from top to bottom, support and schedule the charged piston 21； One bolt 23, the bolt 23 from the bottom up lock the charged piston 21 one with supercharging axis 22 on this；It is once pressurized axis 24, it should Lower 24 lower end of supercharging axis is mounted on oil pressure portion 2, and upper end has screw thread 240, is screwed together in 210 internal thread of perforation of the charged piston 21 213。

Wherein, which has annular groove 214, for placing a washer 215, the charged piston 21 is made to be reset It when spring 15 pushes back top, can be buffered by the washer 215, avoid 21 direct collision of charged piston to oil pressure portion 1, reduce mill Damage.

According to above structure, there can be following, advantage：

(1) booster rod is changed to two sections formula, can be by upper increasing with bolt 23 after upper booster rod 22 is inserted into charged piston 21 Compression bar 22 and charged piston 21 lock；Lower booster rod 24 has screw thread, can directly be screwed togather with charged piston 21, dismounting assembling letter Easily, element coefficient of losses is also reduced.

(2) booster rod 22 and charged piston joint on, it is only necessary to pass through washer 212, you can gas chamber 14 is made to reach airtight shape State, therefore the mismachining tolerance range that element can be tolerated is larger, can reduce part processing cost.

(3) the non-integral forming of booster rod, but make two sections formula into, if one is slight curving, abrasion when, can individually tear open It changes, maintenance costs can be reduced.

In conclusion the utility model by booster rod by being changed to two sections formula and changes the combination knot with charged piston Structure reaches and charged piston component coefficient of losses and conveniently replaced effect is greatly reduced.

Claims (3)

1. a kind of pressurized construction of empty oily pressurized cylinder, which is characterized in that include：

There is perforation, perforation epimere to be equipped with equipped with inner groovy for placing a washer, hypomere for one charged piston, charged piston centre Internal thread；

Axis is pressurized on one, supercharging axis one end has protrusion on this, has internal thread in the protrusion, is inserted into supercharging work from top to bottom The perforation epimere of plug, against being positioned at the charged piston；

One bolt, the bolt is from the bottom up by supercharging axis locking one on the charged piston and this；

It is once pressurized axis, which has screw thread, is screwed together in the perforation internal thread of the charged piston.

2. a kind of pressurized construction of empty oily pressurized cylinder as described in claim 1, which is characterized in that the charged piston has annular Groove, for placing a washer.

3. a kind of empty oily pressurized cylinder, which is characterized in that include the pressurized construction of empty oily pressurized cylinder as claimed in claim 1 or 2.