CN201330765Y - Oil cylinder dedicated for railway equipment - Google Patents
Oil cylinder dedicated for railway equipment Download PDFInfo
- Publication number
- CN201330765Y CN201330765Y CNU2009200101346U CN200920010134U CN201330765Y CN 201330765 Y CN201330765 Y CN 201330765Y CN U2009200101346 U CNU2009200101346 U CN U2009200101346U CN 200920010134 U CN200920010134 U CN 200920010134U CN 201330765 Y CN201330765 Y CN 201330765Y
- Authority
- CN
- China
- Prior art keywords
- piston rod
- oil cylinder
- railway equipment
- piston
- left end
- 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 - Fee Related
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Abstract
The utility belongs to dedicated equipment for railway, especially relating to a oil cylinder dedicated for railway equipment comprising a cylinder cartridge (7), guide bush (5), piston (8), hydraulic port (6), flange (10), back cover (11), fastening key (14); left end of piston rod (15)is shrink-fitted with a alloy block (1) of same diameter with the piston rod (15) by sunk screw; left end of cylinder cartridge (7) is provided with a limiting block (16); the alloy block inlaid in front end of piston rod of oil cylinder dedicated for railway equipment is resistant to wear, thereby service life of oil cylinder increases and production cost is saved and production efficiency is promoted.
Description
Technical field
The utility model belongs to railway equipment special device, particularly a kind of railway equipment special-purpose hydraulic cylinder.
Background technique
At present, existing railway equipment special-purpose hydraulic cylinder, its piston rod front end is a tack, and after the mechanical wear, whole piston rod has just been scrapped, and needs often to change oil cylinder, is a kind of very big waste for production unit, and changing untimelyly also will influence production.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned technical deficiency, and a kind of railway equipment special-purpose hydraulic cylinder that need not often change oil cylinder, economize on the use of funds is provided.
The technological scheme that the utility model technical solution problem adopts is: a kind of railway equipment special-purpose hydraulic cylinder comprises cylinder barrel, guide pin bushing, piston, hydraulic fluid port, flange, bonnet, card key, be characterized in left end head one of sunk screw insert and the isodiametric alloy plate of piston rod, on cylinder barrel left end head excircle, establish a limiting stopper at piston rod.
The beneficial effects of the utility model are: the alloy block of the piston rod front end edge of railway equipment special-purpose hydraulic cylinder is wear-resistant, need not often change oil cylinder, and increased the working life of oil cylinder, saves production cost and can enhance productivity.
Description of drawings
Specify with embodiment below in conjunction with accompanying drawing.
Fig. 1 is that the master of railway equipment special-purpose hydraulic cylinder looks and partly cuts open figure.
Fig. 2 is the left side view of Fig. 1.
Among the figure, 1-alloy plate; The 2-Cock screw; The 3-baffle ring; The 4-hole is with blocking key; The 5-guide pin bushing; The 6-hydraulic fluid port; The 7-cylinder barrel; The 8-piston; The 9-piston guide bush; The 10-flange; The 11-bonnet; The 12-circlip for shaft; 13-card keycap; 14-card key; The 15-piston rod; The 16-limiting stopper; The 17-sunk screw;
Embodiment
Embodiment with reference to accompanying drawing 1,2, establishes hydraulic fluid port 6 on cylinder barrel 7 two ends of railway equipment special-purpose hydraulic cylinder, in the right-hand member head of cylinder barrel 7 baffle ring 3 is housed, and is fixing with guide pin bushing 5 with fastening screw trip bolt 2, and baffle ring 3 right-hand members are stuck in the shoulder place of guide pin bushing 5 with card key 4 with the hole.All seal between guide pin bushing 5 and cylinder barrel 7 and the piston rod 15 with seal ring.At piston rod 15 right-hand member fixed pistons 8, with seal ring sealing, piston guide bush 9 is housed between the two-piston 8 between piston 8 and the cylinder barrel 7, in the right side of piston 8 card key 14 is housed, block the key 14 peripheries keycap 13 that is installed.Circlip for shaft 12 is equipped with in the outer end of card keycap 13, and bonnet 11, fastening flange 10 on bonnet 11 right sides are equipped with in sealing on the right side of cylinder barrel 7.On the left end head of piston rod 15,, fixedly adorn a limiting stopper 16 on the excircle of cylinder barrel 7 left end heads with one of sunk screw 17 insert and the alloy plate 1 of piston rod 15 with diameter.When special-purpose hydraulic cylinder produced wearing and tearing, just the alloy plate 1 of worn piston bar 15 terminations did not damage piston rod 15, and the life-span of oil cylinder is prolonged.
Claims (1)
1, a kind of railway equipment special-purpose hydraulic cylinder, comprise cylinder barrel (7), guide pin bushing (5), piston (8), hydraulic fluid port (6), flange (10), bonnet (11), card key (14), it is characterized in that left end head one of sunk screw (17) insert and the isodiametric alloy plate of piston rod (15) (1), on cylinder barrel (7) left end head excircle, establish a limiting stopper (16) at piston rod (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200101346U CN201330765Y (en) | 2009-01-08 | 2009-01-08 | Oil cylinder dedicated for railway equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200101346U CN201330765Y (en) | 2009-01-08 | 2009-01-08 | Oil cylinder dedicated for railway equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201330765Y true CN201330765Y (en) | 2009-10-21 |
Family
ID=41224145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200101346U Expired - Fee Related CN201330765Y (en) | 2009-01-08 | 2009-01-08 | Oil cylinder dedicated for railway equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201330765Y (en) |
-
2009
- 2009-01-08 CN CNU2009200101346U patent/CN201330765Y/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091021 Termination date: 20100208 |