CN205578398U - Multi -level buffer's hydraulic cylinder - Google Patents
Multi -level buffer's hydraulic cylinder Download PDFInfo
- Publication number
- CN205578398U CN205578398U CN201620322425.9U CN201620322425U CN205578398U CN 205578398 U CN205578398 U CN 205578398U CN 201620322425 U CN201620322425 U CN 201620322425U CN 205578398 U CN205578398 U CN 205578398U
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- oil
- cylinder body
- cylinder
- buffer
- piston
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Abstract
The utility model discloses a multi -level buffer's hydraulic cylinder, end cover and the DUCT SHROUD, the swing joint that locate the cylinder body both ends including the cylinder body, respectively in the cylinder body the piston and with hinge joint's piston rod, set up glib one and glib two on the cylinder body, the cylinder body is near being equipped with an oil through on the DUCT SHROUD position, the cylinder body is near setting up oil through group on the end cover position. Oil through group is by different oil through S1, oil through S2, oil through S3 and the oil through S4 of diameter, oil through S1, oil through S2, oil through S3 and oil through S4 one end and glib one intercommunication, the other end and cylinder body inner chamber intercommunication. The utility model discloses ingenious oil through setting with different diameters on the cylinder body, hydraulic pressure work systems pressure one regularly, the oil feeding area through the control hydro -cylinder controls the speed of advancing of hydro -cylinder, when the hydro -cylinder withdraw, equally according to the advance speed of oil return area control hydro -cylinder in last distance, reaches buffer function, simple structure, reliable operation, extension equipment life.
Description
Technical field
This utility model relates to hydraulic jack technology, particularly relates to the hydraulic jack of a kind of multi-buffer.
Background technology
Over 10 years, along with the high speed development of economic construction, in engineering machinery, produce equipment and automobile industry and the demand of the hydraulic jack of high standard, high-performance and high safety performance is got more and more.When hydraulic jack drives quality bigger, during movement velocity workpiece faster, buffer unit to be arranged, its objective is to eliminate because inertia force and the hydraulic coupling of moving component cause the mechanical impact between piston and end cap, simultaneously with in order to reduce piston when changing the direction of motion, the noise of liquid, oil cylinder all only one of which directions buffering of most pooling features in the market, oil cylinder at some rapid operation environment, there is complex structural designs, and when there are quality problems in any one element, whole oil hydraulic system can be produced potential safety hazard, at the equipment high for some long-term action and prescription, these oil cylinders are to meet the market demand.
Oil cylinder of the prior art has following defects that one, the cylinder movement system of prior art, need to realize pooling feature, as: throttling slot type buffer unit, need at the higher groove of end cap and piston rod machining accuracy, all there is processing technique challenge in these, as more of increased the oil cylinder of choke valve on market, these oil cylinders need to increase choke valve and oil path block, these accessories additionally increased, cost is higher., there is processing technique complexity in two, the cylinder movement system of prior art or cost is higher, for processing technique, cushion cylinder on market, has strict demand to machining accuracy and lathe, and gap is little, oil cylinder will be made excessively to buffer, gap is big, and buffering effect is inconspicuous, if taking to increase the oil cylinder of choke valve, if Solid Coupling Analysis of Throttle Valve, the oil cylinder of whole motor system is operationally, it is impossible to obtain controlled, and whole plant machinery produces potential safety hazard or the system of damage.Three, the cylinder movement system of prior art is owing to processing technique is complicated and increases extra choke valve, makes whole manufacturing cost and volume to increase, installs and operate time-consuming.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, it is provided that the hydraulic jack of a kind of multi-buffer, simple in construction, can realize buffer protection equipment during operation.
In order to achieve the above object, the technical solution adopted in the utility model is:
A kind of hydraulic jack of multi-buffer, the end cap including cylinder body, being respectively arranged on cylinder body two ends and lead lid, the piston being movably connected in cylinder body and the piston rod being connected with piston, cylinder body arranges oil nozzle one and oil nozzle two；Described cylinder body is provided with an oil through near leading lid position, and described cylinder body arranges an oil through group on end cap position.
As preferred embodiment of the present utility model, oil through group described in the utility model is by different oil through S1, oil through S2, oil through S3 and the oil through S4 of diameter, oil through S1, oil through S2, oil through S3 and oil through S4 one end connect with oil nozzle one, and the other end connects with inner chamber of cylinder block.
As preferred embodiment of the present utility model, oil through one end described in the utility model connects with oil nozzle two, and the other end connects with inner chamber of cylinder block.
As preferred embodiment of the present utility model, one end that piston rod described in the utility model is connected with piston is provided with ring-shaped step, and ring-shaped step is provided with annular groove, and described piston bush is loaded on ring-shaped step and is connected on annular groove.
As preferred embodiment of the present utility model, piston described in the utility model is bar shape, and piston inner hole is equipped with annular seal groove with leading to cover to coordinate with piston rod on the endoporus contacted, and annular seal groove is equipped with O-ring seal.
As preferred embodiment of the present utility model, the outer face of piston described in the utility model arranges an annular groove, arranges O-ring seal in annular groove.
As preferred embodiment of the present utility model, piston rod surface described in the utility model is provided with hard chromium.
As preferred embodiment of the present utility model, end cap described in the utility model is welded on cylinder body, leads lid and is threadedly secured on cylinder body.
Compared with prior art, the beneficial effects of the utility model are: be arranged on cylinder body by the oil through of different-diameter cleverly, in hydraulic system pressure one timing, the gait of march of oil cylinder is controlled by controlling the oil-feed area of oil cylinder, when oil cylinder is retracted, also according to oil return area control oil cylinder in the gait of march of last length, reach pooling feature；Simple in construction, reliable operation, extension device service life.
Accompanying drawing explanation
Fig. 1 is overall structure sectional view of the present utility model；
Fig. 2 is initialization configuration state figure of the present utility model；
Fig. 3 is overall structure schematic diagram of the present utility model；
Fig. 4 is work structuring view one of the present utility model；
Fig. 5 is work structuring view two of the present utility model.
Detailed description of the invention
Purport of the present utility model is to overcome the deficiencies in the prior art, the hydraulic jack of a kind of multi-buffer is provided, the oilhole that four sectional areas are different is processed on cylinder block, cylinder movement speed is controlled by control flow during cylinder movement, owing to there being the oilhole of several different area, buffering effect is to reach multi-buffer, and this structure has simple in construction, reliable operation.It is described in detail referring to the drawings below in conjunction with embodiment, in order to technical characteristic of the present utility model and advantage are interpretated more in-depth.
Overall structure schematic diagram of the present utility model is as Figure 1-3, a kind of hydraulic jack of multi-buffer, the end cap 2 that including cylinder body 1, is respectively arranged on cylinder body 1 two ends and lead lid 3, the piston 4 that is movably connected in cylinder body 1 and the piston rod 5 being connected with piston 4, cylinder body 1 arranges oil nozzle 1 and oil nozzle 27；Described cylinder body 1 is provided with an oil through 12 near leading lid 3 positions, and described cylinder body 1 arranges an oil through group 11 on end cap 2 position.In Fig. 2, A is rodless cavity, and B is rod chamber, by measuring the pressure of AB cavity, thus can monitor the effect of buffering.
In order to reach preferable buffering effect, oil through group 11 described in the utility model is by different oil through S1, oil through S2, oil through S3 and the oil through S4 of diameter, oil through S1, oil through S2, oil through S3 and oil through S4 one end connect with oil nozzle 1, the other end and cylinder body 1 inner space.Oil through 12 one end described in the utility model connects with oil nozzle 27, the other end and cylinder body 1 inner space.This utility model cleverly by the oil through of different-diameter on cylinder body, in hydraulic system pressure one timing, the gait of march of oil cylinder is controlled by controlling the oil-feed area of oil cylinder, when oil cylinder is retracted, also according to oil return area control oil cylinder in the gait of march of last length, reach pooling feature.
The one end being connected with piston 4 on piston rod 5 described in the utility model is provided with ring-shaped step 8, and ring-shaped step 8 is provided with annular groove 9, and described piston 4 is set on ring-shaped step 8 and is connected on annular groove 9.Piston 4 is more firm with the connection of piston rod 5 by ring-shaped step 8 and annular groove 9, increases the service life.Piston 4 described in the utility model is in bar shape, and piston 4 endoporus is equipped with annular seal groove 10 with leading to coordinate with piston rod 5 on lid 3 on the endoporus contacted, and annular seal groove 10 is equipped with O-ring seal, with the use of O-ring seal, reaches preferable sealing effectiveness.The outer face of described piston 4 arranges an annular groove 13, arranges O-ring seal in annular groove 13.Described piston rod 5 surface is provided with hard chromium.
As it is shown in figure 1, end cap 2 described in the utility model is welded on cylinder body 1, leads lid 3 and be threadedly secured on cylinder body 1.
Operation principle the most of the present utility model is as follows: the first, have the oilhole (S1+S2+S3+S4) (as shown in Figure 2) of four different-diameters in oil nozzle position；The second, now illustrating as a example by oil cylinder retraction movement, stretching out motion is same reason, can control slowly to start (figure as upper in Fig. 4) when oil cylinder starts；3rd, oil cylinder retraction (1. connect fuel tank, 0MPa can be positioned, pressure P at A.By oil nozzle flow Q=μ × (S1+S2+S3+S4) × (2P/ ρ) ^0.5(such as Fig. 4 schemes)；4th, retract (1. connect fuel tank, 0MPa can be positioned, pressure P at A.By oil nozzle 1. flow Q=μ × (S2+S3+S4) × (2P/ ρ) ^0.5(such as Fig. 4 figure below)；5th, retract (1. connect fuel tank, 0MPa can be positioned, pressure P at A.By oil nozzle 1. flow Q=μ × (S3+S4) × (2P/ ρ) upper figure of ^0.5(such as Fig. 5)；6th, oil cylinder retraction (1. connect fuel tank, 0MPa can be positioned, pressure P at A.By oil nozzle 1. flow Q=μ × S2 × (2P/ ρ) ^0.5(such as Fig. 5 schemes)；7th, being fully retracted, according to above flow rate calculation formula it is found that this kind of buffering has multi-buffer effect, this structure has simple in construction, good buffer effect (such as Fig. 5 figure below).This utility model processes four different oilholes of sectional area on cylinder block, when cylinder movement, controls cylinder movement speed by controlling flow, owing to there being the oilhole of several different area, buffering effect is to reach multi-buffer, and this structure has simple in construction, reliable operation.
By the technical scheme in above example, this utility model is carried out clear, complete description, it is clear that described embodiment is the embodiment of this utility model part rather than whole embodiments.Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art are obtained under not making creative work premise, broadly fall into the scope of this utility model protection.
Claims (8)
1. the hydraulic jack of a multi-buffer, it is characterized in that: include cylinder body (1), be respectively arranged on the end cap (2) at cylinder body (1) two ends and lead lid (3), the piston (4) that is movably connected in cylinder body (1) and the piston rod (5) being connected with piston (4), cylinder body (1) arranges oil nozzle one (6) and oil nozzle two (7)；Described cylinder body (1) is provided with an oil through (12) near leading lid (3) position, and described cylinder body (1) arranges an oil through group (11) on close end cap (2) position.
The hydraulic jack of multi-buffer the most according to claim 1, it is characterized in that: described oil through group (11) is by different oil through S1, oil through S2, oil through S3 and the oil through S4 of diameter, oil through S1, oil through S2, oil through S3 and oil through S4 one end connect with oil nozzle one (6), the other end and cylinder body (1) inner space.
The hydraulic jack of multi-buffer the most according to claim 2, it is characterised in that: described oil through (12) one end connects with oil nozzle two (7), the other end and cylinder body (1) inner space.
The hydraulic jack of multi-buffer the most according to claim 1, it is characterized in that: the upper one end being connected with piston (4) of described piston rod (5) is provided with ring-shaped step (8), ring-shaped step (8) is provided with annular groove (9), and described piston (4) is set in ring-shaped step (8) and above and is connected on annular groove (9).
The hydraulic jack of multi-buffer the most according to claim 4, it is characterized in that: described piston (4) is in bar shape, piston (4) endoporus is equipped with annular seal groove (10) with leading on the upper endoporus contacted with piston rod (5) cooperation of lid (3), and annular seal groove is equipped with O-ring seal on (10).
The hydraulic jack of multi-buffer the most according to claim 5, it is characterised in that: the outer face of described piston (4) arranges an annular groove (13), and annular groove arranges O-ring seal in (13).
The hydraulic jack of multi-buffer the most according to claim 6, it is characterised in that: described piston rod (5) surface is provided with hard chromium.
8. according to the hydraulic jack of the multi-buffer according to any one of claim 1-7, it is characterised in that: described end cap (2) is welded on cylinder body (1), leads lid (3) and is threadedly secured on cylinder body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322425.9U CN205578398U (en) | 2016-04-18 | 2016-04-18 | Multi -level buffer's hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620322425.9U CN205578398U (en) | 2016-04-18 | 2016-04-18 | Multi -level buffer's hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205578398U true CN205578398U (en) | 2016-09-14 |
Family
ID=56862951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620322425.9U Expired - Fee Related CN205578398U (en) | 2016-04-18 | 2016-04-18 | Multi -level buffer's hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205578398U (en) |
-
2016
- 2016-04-18 CN CN201620322425.9U patent/CN205578398U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160914 Termination date: 20210418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |