CN202577072U - Hydraulic track jack - Google Patents
Hydraulic track jack Download PDFInfo
- Publication number
- CN202577072U CN202577072U CN 201220096166 CN201220096166U CN202577072U CN 202577072 U CN202577072 U CN 202577072U CN 201220096166 CN201220096166 CN 201220096166 CN 201220096166 U CN201220096166 U CN 201220096166U CN 202577072 U CN202577072 U CN 202577072U
- Authority
- CN
- China
- Prior art keywords
- hydraulic pressure
- track
- track lifting
- hydraulic
- jack
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model relates to a hydraulic track jack. The hydraulic track jack comprises a base seat and a hydraulic cylinder installed on the base seat along the vertical direction. The hydraulic track jack is provided with two track lifting hooks which are erected on a piston of the hydraulic cylinder through a cross beam, each track lifting hook comprises a vertical arm and a hook portion extending forward from the lower end of the vertical arm, and the vertical arms of the two track lifting hooks are symmetrically situated at two sides of the hydraulic cylinder. The acting point of a track is just close to the hydraulic cylinder when the hydraulic track jack is used for track lifting, moment of torsion is reduced, and therefore track lifting is stable, loading capacity is improved, and the hydraulic track jack is not prone to damage.
Description
[technical field]
The utility model relates to the laying and the maintenance technology field of railroad track; Specifically, the utility model relates to a kind of hydraulic pressure rail jack.
[background technology]
Rail jack be applicable to that trackage is laid and safeguard in the raise track special tool of maintenance, for example, can be used to change or increase and decrease the level that the pad below the rail in high speed railway is proofreaied and correct rail.Rail jack has a lot of different types, but mainly comprises the hydraulic pressure rail jack.
The complete machine of hydraulic pressure rail jack of the prior art mainly is made up of hydraulic system (comprising hand piston pump, hydraulic cylinder and hydraulic circuit) and track lifting parts parts such as (hook for example raise track); The hand operation hydraulic system of admiring through hand piston pump drives the piston in hydraulic cylinder rising; Thereby drive the suitable rail position of track lifting hook jacking, reach the purpose of track lifting operation.Pressure-relief valve in the hydraulic pressure rail jack can carry out release to hydraulic system after operation is accomplished.
Notice of authorization number discloses a kind of rail jack for the Chinese utility model patent of CN200949193Y; As shown in fig. 1; It comprises base 1, is provided with vertical guide 2 in the middle of the base 1, and hydraulic jack 3 is installed on guide rail 2 one wing bases 1; Fork 4 is installed in the guide rail 2, and fork 4 top end flap 5 connect with oil cylinder 3 pistons.Guide rail 2 and fork 4 are mated part and are swallow-tail form.Have vertical through holes in fork 4 and guide rail 2 mating parts.Hydraulic jack 3 bottoms are connected with manual pump.Guide rail 2 has the through hole of size greater than the fork bottom size in the middle of the wing base 1 in addition.Guide rail 2 both sides are provided with the support that links to each other with base 1.
Can find out that in conjunction with accompanying drawing the shortcoming of this existing rail jack is not only complex structure, and the arm of force of track lifting hook is long when raising track operation, moment of torsion is big, is unfavorable for the stable of the process of raising track, and might damage hydraulic cylinder in the track lifting process, supporting capacity is low.
[utility model content]
The purpose of the utility model is to provide a kind of hydraulic pressure rail jack that can overcome above-mentioned technical problem, its simple in structure and raise track when operation the arm of force shorten, moment of torsion is little, track lifting process stabilization, supporting capacity are high.
Further, the purpose of the utility model also is to provide a kind of hydraulic pressure rail jack, and it has reduced suitable orbit altitude, portable or improved other performance that hereinafter will be mentioned in this manual.
The above-mentioned purpose of the utility model realizes through following technical scheme:
According to the utility model a kind of hydraulic pressure rail jack is provided; Said hydraulic pressure rail jack comprises that pedestal and edge vertically are arranged on the hydraulic cylinder on the said pedestal; Said hydraulic pressure rail jack has two track lifting hooks; On the piston of said hydraulic cylinder, each track lifting hook includes perpendicular arm and is erecting the hook portion that stretch out forward the arm lower end through beam erection for they, and the perpendicular arm of said two track lifting hooks is symmetrically located at the both sides of said hydraulic cylinder.Pass through this set; With beam erection on the piston of hydraulic cylinder; Make the perpendicular arm of track lifting hook be symmetrically located at the both sides of said hydraulic cylinder; Vacated in the prior art of hydraulic cylinder dead ahead by the occupied space of perpendicular arm (vertical guide), made that the origin of force of track is just approaching hydraulic cylinder when raising track, reduced moment of torsion.This will make track lifting stablize, improve supporting capacity, the hydraulic pressure rail jack also is not easy to damage.
Preferably, in foregoing hydraulic pressure rail jack, the distance between the hook portion of said track lifting hook is greater than the width of the said base in the corresponding position.Through this set, the scope that the track lifting hook moves down can not receive the restriction of rail jack base, and the minimum altitude of track lifting reduces, and has enlarged the scope of application of track lifting hook.
Preferably, in foregoing hydraulic pressure rail jack, the thickness of the part of said pedestal between said hook portion is less than or equal to the thickness of said hook portion.Through this set, make the minimum track lifting of hydraulic pressure rail jack highly not receive the restriction of rail jack pedestal.
Preferably, in foregoing hydraulic pressure rail jack, said hydraulic pressure rail jack also comprises handle.Through this set, simple in structure, the light weight of aforesaid in addition rail jack makes the hydraulic pressure rail jack very portable.
Preferably, in foregoing hydraulic pressure rail jack, said hydraulic pressure rail jack also comprises hand piston pump, and it is positioned on the side opposite with said hook portion.Through this set, the hook portion superjacent air space that the hand of admiring can overslaugh track lifting hook has yet guaranteed stable track lifting operation.
Preferably, in foregoing hydraulic pressure rail jack, on the perpendicular arm top of said track lifting hook and be positioned on the side of said hook portion and in the perpendicular arm bottom of said track lifting hook and be positioned on the opposition side of said hook portion and be respectively arranged with the antifriction plate.Through this set, the key position on the perpendicular arm of the hook that can guarantee to raise track does not receive friction, effect of attrition, can keep long-term effectively and use.
Preferably, in foregoing hydraulic pressure rail jack, said two track lifting hooks and said crossbeam are provided with integratedly.
Therefore, the hydraulic pressure rail jack that the utility model provides, safe and reliable, efficient is high, operation is light, rational in infrastructure, easy to carry, economical and practical, adjustable range degree of freedom high.
[description of drawings]
With reference to accompanying drawing, the disclosure of the utility model will be more obvious.Should understand, these accompanying drawings only are that schematically not drawn on scale also is not intended to limit the scope of the utility model.Among the figure:
Fig. 1 is the sketch map of hydraulic pressure rail jack of the prior art;
Fig. 2 is the schematic perspective view according to the specific embodiment of the hydraulic pressure rail jack of the utility model; And
Fig. 3 is another schematic perspective view according to the specific embodiment of the hydraulic pressure rail jack of the utility model.
Parts and label list
| 1 | |
| 2 | |
| 3 | |
| 4 | Fork |
| 5 | |
| 100 | The hydraulic |
| 110 | |
| 120 | |
| 130 | |
| 140 | The track lifting hook |
| 141 | |
| 142 | |
| 150 | |
| 160 | The hand of admiring |
| 170 | |
| 180 | Pressure- |
| 190 | Crossbeam |
[specific embodiment]
The specific embodiment of the utility model at length is described with reference to the accompanying drawings.These explanations only are descriptive, exemplary.
Fig. 2 is the schematic perspective view according to the specific embodiment of the hydraulic pressure rail jack of the utility model.Shown in figure, this hydraulic pressure rail jack 100 mainly comprises parts such as pedestal 110, hand piston pump (see figure 3) 120, hydraulic cylinder 130, track lifting hook 140 and handle 150 (see figure 2)s.Pedestal 110 be whole rail jack basic part, and hydraulic cylinder 130 parts such as grade are arranged on the pedestal 110.
As can be seen from the figure, hydraulic cylinder 130 is preferably at the middle part along vertically being arranged on the pedestal 110, has guaranteed that track lifting power makes progress all the time.Liquid in the hydraulic cylinder 130 is preferably hydraulic oil, and it is got in touch through hydraulic circuit and hand piston pump 120, and when the hand 160 by the emperor himself of operation hand piston pump 120, the piston 170 of hydraulic cylinder 130 produces motions upwards.In addition, the pressure-relief valve (see figure 3) 180 in the hydraulic system can play the effect to hydraulic cylinder 130 releases.In rail jack, use hydraulic system also to guarantee strong, the working stability of operation controllability of rail jack.About the concrete operating principle of hydraulic system, in the utility model, no longer carry out illustrated in detail.
Hydraulic pressure rail jack 100 has two track lifting hooks 140, be preferably L-shaped, the hook portion 142 that each track lifting hook 140 includes perpendicular arm 141 and stretches out forward in perpendicular arm 141 lower ends.These two track lifting hooks 140 are set up on the piston 170 of hydraulic cylinder 130 through crossbeam 190, and the perpendicular arm 141 of two track lifting hooks 140 is symmetrically located at the both sides of hydraulic cylinder 130.Though two track lifting hooks 140 form for split-type design is combined together then with crossbeam 190 in this embodiment,, in other concrete embodiment, they also can be provided with integratedly.Illustrated preferred embodiment in; Distance between the hook portion 142 of track lifting hook 140 is greater than the width of corresponding position base 110; Thereby when piston 170 dropped to extreme lower position, hook portion 142 can be positioned at the both sides of base 110, on vertical position, did not receive the restriction of the thickness of pedestal 110.In preferred embodiment; The thickness that pedestal 110 is clipped in the part between the hook portion 142 is less than or equal to the thickness of hook portion 142; Then further guaranteed; The thickness of pedestal 110 can have influence on the working range of rail jack in no instance, makes the thickness of hook portion 142 determine the minimum altitude of raising track uniquely.
On perpendicular arm 141 tops of track lifting hook 140 and be positioned on the side of hook portion 142 and in perpendicular arm 141 bottoms of track lifting hook 140 and be positioned on the opposition side of hook portion 142 and be respectively arranged with the antifriction plate.Can understand, when track lifting hook 140 is in running order, depart from vertical position, at above-mentioned two positions and pedestal 110 its support zone produced and rub, influence the stability and the application life of work owing to the pressure of track can produce distortion.Through two blocks of antifriction plates are set, improve this situation effectively.
As shown in the figure, handle 150 is installed in the top of rail jack, and preferably can be movable.Because the hydraulic pressure rail jack that provides of this utility model itself is with regard to simple in structure, light weight, through the setting of this handle 150, product is easy to carry about with one especially, is suitable for the flexible use under the situation such as rail maintenance.In optional embodiment, can also give sheath that handle 5 loads onto suitable material, shape to increase comfortableness.
Fig. 3 is according to another schematic perspective view of the specific embodiment of the hydraulic pressure rail jack 100 of the utility model, wherein shows hand piston pump 120, and it is positioned on the side opposite with hook portion 142, and is provided with hand 160 by the emperor himself.Dotted line among the figure schematically shows the position of rail on hydraulic pressure rail jack 100 when raising track, it is thus clear that it very near hydraulic cylinder 130 and piston 170, has compared with prior art significantly reduced the moment of torsion that the track lifting hook is applied.
Through as above explaining and knowing; When raising track operation; Operating personnel only need the hook portion 142 of track lifting hook 140 on the hydraulic pressure rail jack 100 is reached under the track of rail, back and forth operate the hand 160 of admiring of hand piston pump 120 then up and down, and hydraulic pressure rail jack 100 just raises the piston 170 of hydraulic cylinder 130 inside through the hydraulic system of inside; And then, piston 170 promote track lifting hooks 140 crossbeam 190, impel track lifting hook 140 to raise track.After the work such as maintenance of railroad track are accomplished, can pass through pressure-relief valve 180 removal hydraulic pressure, piston 170 descends, and then hydraulic pressure rail jack 100 is moved apart.
As stated, with reference to accompanying drawing the exemplary specific embodiment of the utility model has been carried out detailed explanation.Should understand, the application is intended to make these details to constitute the restriction to the utility model protection domain.Under situation about not deviating from according to the spirit of the utility model and scope; Can to the structure of the exemplary specific embodiment and characteristic be equal to or similarly change, these changes will also drop in the determined protection domain of the utility model appending claims.
Claims (7)
1. hydraulic pressure rail jack; Said hydraulic pressure rail jack comprises that pedestal and edge vertically are arranged on the hydraulic cylinder on the said pedestal; It is characterized in that said hydraulic pressure rail jack has two track lifting hooks, they pass through beam erection on the piston of said hydraulic cylinder; The hook portion that each track lifting hook includes perpendicular arm and stretches out forward in perpendicular arm lower end, the perpendicular arm of said two track lifting hooks is symmetrically located at the both sides of said hydraulic cylinder.
2. hydraulic pressure rail jack as claimed in claim 1 is characterized in that, the distance between the hook portion of said track lifting hook is greater than the width of the said base in the corresponding position.
3. hydraulic pressure rail jack as claimed in claim 2 is characterized in that, the thickness of the part of said pedestal between said hook portion is less than or equal to the thickness of said hook portion.
4. hydraulic pressure rail jack as claimed in claim 1 is characterized in that, said hydraulic pressure rail jack also comprises handle.
5. hydraulic pressure rail jack as claimed in claim 1 is characterized in that, said hydraulic pressure rail jack also comprises hand piston pump, and it is positioned on the side opposite with said hook portion.
6. hydraulic pressure rail jack as claimed in claim 1 is characterized in that, on the perpendicular arm top of said track lifting hook and be positioned on the side of said hook portion and in the perpendicular arm bottom of said track lifting hook and be positioned on the opposition side of said hook portion and be respectively arranged with the antifriction plate.
7. hydraulic pressure rail jack as claimed in claim 1 is characterized in that, said two track lifting hooks and said crossbeam are provided with integratedly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220096166 CN202577072U (en) | 2012-03-14 | 2012-03-14 | Hydraulic track jack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220096166 CN202577072U (en) | 2012-03-14 | 2012-03-14 | Hydraulic track jack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202577072U true CN202577072U (en) | 2012-12-05 |
Family
ID=47246501
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220096166 Withdrawn - After Issue CN202577072U (en) | 2012-03-14 | 2012-03-14 | Hydraulic track jack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202577072U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535278A (en) * | 2012-03-14 | 2012-07-04 | 上海瑞纽机械装备制造有限公司 | Hydraulic track lifting device and track lifting method |
-
2012
- 2012-03-14 CN CN 201220096166 patent/CN202577072U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102535278A (en) * | 2012-03-14 | 2012-07-04 | 上海瑞纽机械装备制造有限公司 | Hydraulic track lifting device and track lifting method |
| CN102535278B (en) * | 2012-03-14 | 2015-02-18 | 上海瑞纽机械股份有限公司 | Hydraulic track lifting device and track lifting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121205 Effective date of abandoning: 20150218 |
|
| RGAV | Abandon patent right to avoid regrant |