CN203962550U - A kind of aluminium bar extruding type hydraulic cylinder piston locking device - Google Patents
A kind of aluminium bar extruding type hydraulic cylinder piston locking device Download PDFInfo
- Publication number
- CN203962550U CN203962550U CN201420359194.XU CN201420359194U CN203962550U CN 203962550 U CN203962550 U CN 203962550U CN 201420359194 U CN201420359194 U CN 201420359194U CN 203962550 U CN203962550 U CN 203962550U
- Authority
- CN
- China
- Prior art keywords
- piston
- aluminium bar
- piston rod
- hydraulic cylinder
- cock screw
- 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.)
- Expired - Lifetime
Links
- 239000004411 aluminium Substances 0.000 title claims abstract description 29
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 29
- 238000004080 punching Methods 0.000 claims abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 241001074085 Scophthalmus aquosus Species 0.000 description 2
- 230000003116 impacting effect Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010079 rubber tapping Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Landscapes
- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Abstract
The utility model is announced a kind of aluminium bar extruding type hydraulic cylinder piston locking device, belongs to oil hydraulic cylinder technical field.Comprise piston rod, piston and Cock screw; On piston, had the tapped hole of piston rod axis, piston thread is provided with aluminium bar in hole, and aluminium bar the inner embeds in piston rod thread by punching press; Cock screw is arranged on piston thread hole, and its inner props up aluminium bar.The utility model has been eliminated Cock screw gap in the axial direction, locking more reliable, has improved reliability and the working life of oil hydraulic cylinder; Piston rod thread end does not have other processing, and manufacturing procedure is few, and manufacturing efficiency is high, has reduced oil cylinder cost.
Description
Technical field
The utility model design oil hydraulic cylinder technical field, specifically a kind of aluminium bar extruding type hydraulic cylinder piston locking device.
Background technique
At present, in engineering machinery, the action executing of equipment adopts hydraulic jack to realize mostly, utilizes reciprocating double-action oil hydraulic cylinder that hydraulic energy is transformed into mechanical energy, meeting reciprocating action the power that may withstand shocks in oil cylinder working procedure, so piston easily occurs loosening, causes oil hydraulic cylinder fault.
At present, the locking conventional jack-screw type structure of the piston of the oil cylinder of going together both at home and abroad, mainly contains two kinds: a kind of is that to adopt cone end Cock screw to carry out locking, as shown in Figure 1; In this loosing Prevention Technology scheme, its structure comprises piston rod, piston and Cock screw three parts, after the assembling of piston and piston rod, and at its end face, drilling and tapping vertically centered by its joint, and screw in Cock screw.When piston runs into impact, rely on Cock screw, piston rod becomes as a whole with piston, avoids piston thread loosening, prevents that piston rotation from exiting, and reaches locking object.Its shortcoming is to process circular groove one in piston rod thread section, because the width of circular groove can not fit like a glove with Cock screw contact segment, at piston rod, upwards leave certain interval, in reciprocating motion of the pistons process, vibrate frequently and impact can make piston just at piston rod, slight vibration upwards occur, affect the use of oil cylinder.
Another kind is to adopt styletable Cock screw locking, as shown in Figure 2: in this loosing Prevention Technology scheme, its structure comprises piston rod, piston, styletable Cock screw three parts, after piston and piston rod assemble, brill bottom outlet is joined at scene, and screwing in styletable Cock screw, the socket cap of screw front end inserts in the bottom outlet of piston rod.When piston runs into while impacting, the part that styletable screw inserts piston rod can effectively stop piston rotation and axial motion along piston rod, reaches locking object.Its shortcoming is after installing piston and piston rod, to join brill bottom outlet in scene, can increase installation time, reduces manufacturing efficiency, and the iron filings that produce in boring procedure are difficult to cleaning, is not suitable for producing in enormous quantities.
Summary of the invention
For solving the problems of the technologies described above, the utility model provides a kind of aluminium bar extruding type hydraulic cylinder piston locking device.
The utility model is by the following technical programs: a kind of aluminium bar extruding type hydraulic cylinder piston locking device, comprises piston rod, piston and Cock screw; Between described piston and piston rod, be to be threaded, had the tapped hole of piston rod axis on piston, described Cock screw is arranged in piston thread hole; In described piston thread hole, aluminium bar is installed, aluminium bar the inner embeds in piston rod thread by punching press; Described Cock screw the inner props up aluminium bar.
After piston and piston rod assemble, aluminium bar is placed in to piston thread hole, and impacts its tail end with instrument, one end that aluminium bar contacts with piston rod is produced in the screw thread that distortion embeds piston rod, then will in Cock screw precession piston thread hole, withstand aluminium bar.When piston is subject to impacting, because aluminium bar is to embed in screw thread by distortion, almost do not stay gap between the two, then rely on the effect of Cock screw that piston rod and piston are linked to be to an integral body, can effectively prevent that like this piston from exiting along vibration and the rotation of axial direction.
The utility model has the advantage of: eliminate Cock screw gap in the axial direction, locking more reliable, reliability and the working life of having improved oil hydraulic cylinder; Piston rod thread end does not have other processing, and manufacturing procedure is few, and manufacturing efficiency is high, has reduced oil cylinder cost.
Accompanying drawing explanation
Fig. 1 is cone end Cock screw anti-loose structure;
Fig. 2 is styletable Cock screw anti-loose structure;
Fig. 3 is the utility model structural representation.
In figure 1, piston rod; 2, piston; 3, Cock screw; 4, aluminium bar.
Embodiment
Be below a specific embodiment of the present utility model, existing the utility model is described in further detail by reference to the accompanying drawings.
As shown in Figure 3, a kind of aluminium bar extruding type hydraulic cylinder piston locking device, comprises piston rod 1, piston 2, Cock screw 3 and aluminium bar 4; Between piston 2 and piston rod 1, be to be threaded, on piston 2, had the tapped hole of piston rod 1 axis; In piston 2 tapped holes, aluminium bar 4 is installed, aluminium bar 4 the inners embed in piston rod 1 screw thread by punching press, its concrete grammar is, aluminium bar 4 the inners are contacted with piston rod 1 screw thread, and then the inside punching press of instrument for aluminium bar 4 the other ends, make one end that aluminium bar 4 contacts with piston rod 1 produce distortion and embed in piston rod 1 screw thread; Cock screw 3 is arranged in piston 2 tapped holes, and its inner props up aluminium bar 4.
Claims (1)
1. an aluminium bar extruding type hydraulic cylinder piston locking device, comprises piston rod (1), piston (2) and Cock screw (3); Between described piston (2) and piston rod (1), be to be threaded, had the tapped hole of piston rod (1) axis on piston (2), described Cock screw (3) is arranged in piston (2) tapped hole; It is characterized in that: in described piston (2) tapped hole, aluminium bar (4) is installed, aluminium bar (4) is inner to be embedded in piston rod (1) screw thread by punching press; Described Cock screw (3) the inner props up aluminium bar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359194.XU CN203962550U (en) | 2014-07-01 | 2014-07-01 | A kind of aluminium bar extruding type hydraulic cylinder piston locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420359194.XU CN203962550U (en) | 2014-07-01 | 2014-07-01 | A kind of aluminium bar extruding type hydraulic cylinder piston locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203962550U true CN203962550U (en) | 2014-11-26 |
Family
ID=51923142
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420359194.XU Expired - Lifetime CN203962550U (en) | 2014-07-01 | 2014-07-01 | A kind of aluminium bar extruding type hydraulic cylinder piston locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203962550U (en) |
-
2014
- 2014-07-01 CN CN201420359194.XU patent/CN203962550U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |