CN205639157U - Device for connecting pneumatic cylinder is inside can to lead to hydraulic oil - Google Patents
Device for connecting pneumatic cylinder is inside can to lead to hydraulic oil Download PDFInfo
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- CN205639157U CN205639157U CN201620422284.8U CN201620422284U CN205639157U CN 205639157 U CN205639157 U CN 205639157U CN 201620422284 U CN201620422284 U CN 201620422284U CN 205639157 U CN205639157 U CN 205639157U
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- Prior art keywords
- piston head
- piston rod
- spherical
- oil duct
- hydraulic
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- 239000010720 hydraulic oil Substances 0.000 title claims abstract description 14
- 239000003921 oil Substances 0.000 claims abstract description 47
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 238000007789 sealing Methods 0.000 claims description 8
- 239000000446 fuel Substances 0.000 abstract description 8
- 206010008469 Chest discomfort Diseases 0.000 abstract description 5
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000005489 elastic deformation Effects 0.000 description 5
- 238000013475 authorization Methods 0.000 description 4
- 238000006073 displacement reaction Methods 0.000 description 4
- 239000010727 cylinder oil Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model discloses a device for connecting pneumatic cylinder is inside can to lead to hydraulic oil, locate the piston head mechanism on the piston rod including the piston rod with connecting, tailpiece of the piston rod portion is equipped with a sphere, has seted up the oil duct in the sphere, piston head mechanism includes the upper piston head, set up in the upper piston overhead and with communicating oil duct of spherical oil duct and lower piston head, the lower piston head is connected inner chamber of formation with the upper piston head, be equipped with in the inner chamber spherical and its phase -match, seted up a ring channel in the inner chamber, be equipped with the seal friction face in the ring channel, the outside of upper piston head still is equipped with the primary seal. Through the utility model discloses, when the axis of pneumatic cylinder and the axis of piston rod were inconsistent, the axis that can guarantee the piston head parts and the axis of pneumatic cylinder still kept the collineation, when needing the piston rod fixed, and during the hydro -cylinder motion, for reducing through the hose fuel feeding, through the utility model discloses an inside spare part of a logos and utensils pneumatic cylinder has been protected to the high pressure chest fuel feeding of hydro -cylinder to the oil duct, and is not fragile.
Description
Technical field
This utility model relates to the track lifting instrument of high-speed railway construction, more particularly, it relates to a kind of
The attachment means of hydraulic oil can be led to inside hydraulic cylinder.
Background technology
Rail jack, applies to carry out, during trackage is laid and safeguarded, the special tool keeped in repair that raises track
Tool, it is adaptable to the track of rail, track lifting of turnout junction operation, manually plunger displacement pump drives piston to rise,
Drive track lifting lever, make operation take turns fast servo in the track lifting of the track lifting lever front end of rail foot, reach
To track lifting operation purpose.Rail jack mainly has hydraulic tool for taking up tracks and tooth bar rail jack, and hydraulic tool for taking up tracks leads to
Often having underframe, track lifting actuator and hydraulic control device, both are connected with each other and each undertake corresponding
Function.
The complete machine of hydraulic tool for taking up tracks of the prior art mainly by hydraulic system (include hand piston pump,
Hydraulic cylinder and hydraulic circuit) and the part composition such as track lifting parts (such as raise track hook), pass through hands
The hands operation hydraulic system of admiring of dynamic plunger displacement pump drives piston in hydraulic cylinder to rise, thus drives track lifting hook
The rail position that jacking is suitable, reaches the purpose of track lifting operation, and the pressure-relief valve in hydraulic tool for taking up tracks is permissible
After operation completes, hydraulic system is carried out release.
As it is shown in figure 1, be that CN1114395 Chinese utility model patent discloses one at Authorization Notice No.
Planting sliding guide type hydraulic rail lifter, in order to provide, one is simple, compact, volume is little, from heavy and light, usability
The rail jack that energy is good, proposes this utility model, and it is by working cylinder, fuel tank, plunger displacement pump, oil circuit, control
Valve processed and slide frame type actuator composition, slide frame type actuator is made up of chassis and track lifting hook, chassis
Being provided with the vertical balladeur train with forward and backward guide rail, working cylinder cylinder body is provided with support plate and hook, raises track
It is hooked on hook, support plate and track lifting hook is respectively equipped with along the forward and backward guide pass sliding of vertical balladeur train
Slideway and chute.
Although this utility model proposes a kind of balladeur train and undertakes the structure of unbalance loading, but does not considers that main frame exists
Elastic deformation in actually used, because such main frame uses in acting on the most in the wild, it is desirable to weight is more
Light the best, so needing when design fully to allow the bearing carrier of main frame to have bigger in elastic limit
Deformation, say, that too high rigidity requirement can not be proposed for the bearing carrier of main frame during design, only
Proof strength is wanted both may be used more than the yield strength of component.So the vertical balladeur train of this utility model is in work
In there is elastic deformation owing to bearing the unbalance loading of track lifting hook, necessarily cause the cylinder body promoting track lifting hook
Axis with originally offset, i.e. the axis with piston offsets, this skew the most then aggravate seal
The abrasion of part, piston and oil cylinder, heavy then cause reset difficulty.
As in figure 2 it is shown, also Authorization Notice No. is that CN102535278A Chinese utility model patent is public
Having opened a kind of hydraulic tool for taking up tracks and a kind of method for raising track railroad track, described method makes
Use described hydraulic tool for taking up tracks.Described hydraulic tool for taking up tracks includes pedestal and is vertically arranged on described pedestal
On hydraulic cylinder, described hydraulic tool for taking up tracks has two track lifting hooks, they by beam erection in described
On the piston of hydraulic cylinder, each track lifting hook all includes vertical arm and the hook portion forward extended out in vertical arm lower end,
The vertical arm of said two track lifting hook is symmetrically located at the both sides of described hydraulic cylinder.This hydraulic tool for taking up tracks and
For method that railroad track is raised track when raising track the impetus of track just close to hydraulic cylinder,
Reduce moment of torsion, will make to raise track stable, improve bearing capacity, hydraulic tool for taking up tracks is also not susceptible to damage
Bad.
The connected mode between piston rod and piston element in existing hydraulic cylinder mainly has two kinds: a kind of
Being piston rod and piston element monoblock type (as shown in Figure 3), another kind is piston rod and piston element
Split type (as shown in Figure 4), their common feature is that the axis of piston rod and piston element ensures
Being relatively fixed, in order to ensure sealing, the axis of piston element must be protected with the axis of hydraulic cylinder oil cylinder
Hold consistent.
But, in work uses, as it is shown in figure 5, when the axis of hydraulic cylinder oil cylinder occurs and piston
When the axis of bar is inconsistent, by the interference on recurring structure, cause the unbalance loading of sealing member on piston element,
Play guidance tape this unbalance loading load of rail to be passed to oil cylinder and support, oil cylinder and support elasticity necessarily occurs
Deformation, thus cause the original position of the axis runout of oil cylinder.When the length of hydraulic cylinder oil cylinder is longer and
When the linearity of oil cylinder is bad, by inconsistent with the axis of piston rod for the axis causing oil cylinder, also can make
Become to cause the unbalance loading of sealing member on piston element, also result in the damage of piston rod and piston element simultaneously,
Affect high-speed railway construction.When needs piston rod is fixed, during cylinder movement, supplied by flexible pipe for reducing
Oil, by the oil duct in the middle part of piston head and piston rod to the high pressure chest fuel feeding of oil cylinder.
Utility model content
For drawbacks described above present in prior art, the purpose of this utility model is to provide a kind of hydraulic pressure
Cylinder interior can lead to the attachment means of hydraulic oil, it is possible to solves rail jack hydraulic cylinder internal piston bar and piston
Parts are because bearing unbalance loading, and the problem causing bigger elastic deformation.
For achieving the above object, this utility model adopts the following technical scheme that
The attachment means of hydraulic oil can be led to, including piston rod and be connected at piston inside a kind of hydraulic cylinder
Piston head mechanism on bar, piston rod end be provided with one spherical, spherical on offer oil duct, piston
Head mechanism includes upper piston head, the oil duct that is opened on upper piston head and communicates with spherical oil duct and under
Piston head, lower piston head is connected with upper piston head and forms an inner chamber, is provided with described ball in inner chamber
Also it matches shape, offers a cannelure, be provided with sealed friction surface in cannelure in inner chamber, on
The outside of piston head is additionally provided with primary seal.
It is additionally provided with ring shaped oil passage inside described upper piston head.
Described spherical oil duct is provided with three, is evenly distributed on spherical.
The angle angle that described spherical its circle central axis of each oil duct and piston rod axis are formed is
50°。
Described sealed friction surface is the sealing ring on ball surface.
By this utility model, when the axis of hydraulic cylinder and the axis of piston rod are inconsistent, it is possible to really
The axis of keep-alive stopper end part and the axis of hydraulic cylinder still keep conllinear, when needs piston rod is fixed, and oil
During cylinder motion, for reducing by flexible pipe fuel feeding, by oil duct of the present utility model to the high pressure chest of oil cylinder
Fuel feeding, protects the parts within rail jack hydraulic cylinder, is hardly damaged.
Accompanying drawing explanation
Fig. 1 is a kind of sliding guide type hydraulic rail lifter schematic diagram of Authorization Notice No. CN1114395；
Fig. 2 is a kind of hydraulic tool for taking up tracks schematic diagram of Authorization Notice No. CN102535278A；
Fig. 3 is the schematic diagram of one-piece piston；
Fig. 4 is the schematic diagram of Split piston；
Fig. 5 is original technology schematic diagram when work uses；
Fig. 6 is the schematic diagram that this utility model is arranged in rail jack.
Detailed description of the invention
The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings with embodiment.
Shown in Fig. 6, the company of hydraulic oil inside a kind of hydraulic cylinder provided by the utility model, can be led to
Connection device, including piston rod 1 and the piston head mechanism being connected on piston rod 1, piston rod 1 end
Portion is provided with one spherical 2, offers oil duct 3 on spherical 2, piston head mechanism include upper piston head 4,
Be opened on upper piston head 4 and with spherical 2 the oil duct 5 that communicates of oil duct 3 and lower piston head 6, under
Piston head 6 is connected with upper piston head 4 and forms an inner chamber, is provided with described spherical 2 also in inner chamber
It matches, and offers a cannelure 7, be provided with sealed friction surface 8 in cannelure 7 in inner chamber, on
The outside of piston head 4 is additionally provided with primary seal 9.
It is also preferred that the left described upper piston head 4 is internal is additionally provided with ring shaped oil passage 10.
It is also preferred that the left the oil duct 3 of described spherical 2 is provided with three, it is evenly distributed on spherical 2.
It is also preferred that the left its circle central axis of each oil duct 3 of described spherical 2 and piston rod 1 axis institute shape
The angle angle become is 50 °.
It is also preferred that the left the described sealing ring that sealed friction surface 8 is ball surface.
When carrying out track lifting operation, this unbalance loading load of rail is transmitted oil supply by the guidance tape 11 that rises of rail jack
Necessarily there is elastic deformation in cylinder 12 and support 13, oil cylinder 12 and support 13, thus causes oil cylinder 12
The original position of axis runout.Through actual tests, under rated load, frame is used for bear partially
The guide groove 14 carried, maximum displacement reaches more than 6mm, it is seen that oil cylinder 12 axis being attached thereto deviates
Original position.Now piston head parts are according to the deflection angle of oil cylinder 12, carry out on spherical 2
Deflection, it is ensured that the axis of piston head parts keeps consistent with the axis of oil cylinder 12.
Hydraulic oil can enter oil cylinder 12 by piston rod 1 with the oil duct 5 on piston head parts simultaneously
High pressure chest 15, sealed friction surface 8 is the sealing ring on ball surface, it assures that piston head parts can be
Rotate on three-dimensional on spherical 2, can guarantee that again hydraulic oil is not leak into the offside of high pressure chest 15.
When needs piston rod 1 is fixed, when oil cylinder 12 moves, it is not necessary to by flexible pipe fuel feeding, make facility more
It is suitable for the adverse circumstances of field work.
In sum, born because of hydraulic tool for taking up tracks inside rail jack hydraulic cylinder by this utility model
The elastic deformation that caused of unbalance loading, it can be ensured that carrying parts keep correct with the parts that match
Assembly relation, thus reach to eliminate interference, increase contact area, reduction contact stress, also make hydraulic pressure
The sealing member of rail jack will not cause damage because of unbalance loading.Fixing when needs piston rod, oil cylinder is transported simultaneously
Time dynamic, can reduce by flexible pipe fuel feeding, by the oil duct in the middle part of piston head and piston rod to the height of oil cylinder
Pressure chamber fuel feeding.
Those of ordinary skill in the art is it should be appreciated that above embodiment is intended merely to
Bright this utility model, and it is not used as to restriction of the present utility model, as long as of the present utility model
In spirit, change, the modification of embodiment described above all will be fallen of the present utility model
In Claims scope.
Claims (5)
1. can lead to the attachment means of hydraulic oil inside a hydraulic cylinder, it is characterised in that include piston rod
With the piston head mechanism being connected on piston rod, piston rod end be provided with one spherical, spherical on open
Be provided with oil duct, piston head mechanism includes upper piston head, be opened on upper piston head and with spherical oil duct
The oil duct communicated and lower piston head, lower piston head is connected with upper piston head and forms an inner chamber, inner chamber
In be provided with described spherical and its match, inner chamber offers a cannelure, is provided with in cannelure
Sealed friction surface, the outside of upper piston head is additionally provided with primary seal.
Can lead to the attachment means of hydraulic oil inside a kind of hydraulic cylinder the most as claimed in claim 1, it is special
Levy and be, inside described upper piston head, be additionally provided with ring shaped oil passage.
Can lead to the attachment means of hydraulic oil inside a kind of hydraulic cylinder the most as claimed in claim 1, it is special
Levying and be, described spherical oil duct is provided with three, is evenly distributed on spherical.
Can lead to the attachment means of hydraulic oil inside a kind of hydraulic cylinder the most as claimed in claim 3, it is special
Levy and be, the angle angle that described spherical its circle central axis of each oil duct and piston rod axis are formed
Degree is 50 °.
Can lead to the attachment means of hydraulic oil inside a kind of hydraulic cylinder the most as claimed in claim 1, it is special
Levying and be, described sealed friction surface is the sealing ring on ball surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620422284.8U CN205639157U (en) | 2016-05-11 | 2016-05-11 | Device for connecting pneumatic cylinder is inside can to lead to hydraulic oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620422284.8U CN205639157U (en) | 2016-05-11 | 2016-05-11 | Device for connecting pneumatic cylinder is inside can to lead to hydraulic oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205639157U true CN205639157U (en) | 2016-10-12 |
Family
ID=57059740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620422284.8U Active CN205639157U (en) | 2016-05-11 | 2016-05-11 | Device for connecting pneumatic cylinder is inside can to lead to hydraulic oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205639157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366652A (en) * | 2016-05-11 | 2017-11-21 | 上海瑞纽机械股份有限公司 | The attachment means of hydraulic oil can be led to inside a kind of hydraulic cylinder |
-
2016
- 2016-05-11 CN CN201620422284.8U patent/CN205639157U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107366652A (en) * | 2016-05-11 | 2017-11-21 | 上海瑞纽机械股份有限公司 | The attachment means of hydraulic oil can be led to inside a kind of hydraulic cylinder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |