CN201255153Y - Differential pressure type internal inverting automatic cycle oil cylinder - Google Patents
Differential pressure type internal inverting automatic cycle oil cylinder Download PDFInfo
- Publication number
- CN201255153Y CN201255153Y CNU2008202216053U CN200820221605U CN201255153Y CN 201255153 Y CN201255153 Y CN 201255153Y CN U2008202216053 U CNU2008202216053 U CN U2008202216053U CN 200820221605 U CN200820221605 U CN 200820221605U CN 201255153 Y CN201255153 Y CN 201255153Y
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Abstract
The utility relates to a pressure differential type inner reversing automatic circulation oil cylinder and belongs to a hydraulic oil cylinder. The connecting rod is provided with a spring at one end of a piston rod, and the two ends of the spring are provided with stop sliding blocks; the connecting rod is connected with an U-shaped frame at one end of a sleeve, and the U-shaped frame is connected with a sliding sleeve; a valve core is arranged in the center of the sliding sleeve and is fixedly connected with a hood through bolts; a moving cap is arranged at the front end of the valve core in the U-shaped frame, and a spring is arranged in the moving cap; a steel ball is respectively arranged at the two ends of the spring, and the steel balls are propped against positioning holes on the U-shaped frame, and an oil hole on the valve core is communicated with an oil inlet; and an oil outlet hole on the valve core is communicated with an oil outlet. The utility model has the advantages that the structure is simple and compact, and the volume is small; the piston can automatically reciprocate, which does not need any external reversing valve to control, thereby a large number of oil way control devices are saved.
Description
Technical field
The utility model relates to a kind of hydraulic jack, particularly differential interior commutation automatic cycle oil cylinder.
Background technique
General differential oil cylinder is when pressure oil is supplied with two chambeies of hydraulic piston rod cylinder simultaneously, owing to the active area of piston-less lumen has the active area of rod end chamber big, piston just with certain speed to the lateral movement that piston rod is arranged.Control the action of oil cylinder, the control oil channel of a hydraulic oil just must be arranged, generally need selector valve, electromagnet or the like components and parts are the devices mechanical, electrical, that liquid makes up, and are that volume is bigger, the control oil channel of structure more complicated.
Summary of the invention
The purpose of this utility model provides a kind of outside any selector valve control that need not, and the commutation automatic cycle realizes the to-and-fro motion of piston in the differential oil cylinder.
The solution that realizes the utility model purpose is that the end by sleeve 6 is fixed with hood 8, the other end is fixed with coupling sleeve 1 and forms cylinder barrel, piston 19 is fixed with piston rod 24 and is installed in the cylinder barrel, oil inlet and outlet 30 is located on the coupling sleeve 1, filler opening 29, oil outlet 34 is located on the hood 8, particularly there is a connecting rod 21 to be installed in piston 19, piston rod 24, center hole and sleeve 6 in, connecting rod 21 is provided with spring 20 of piston rod 24, the two ends of spring 20 are position limiting slide blocks 22, connecting rod 21 is connected with U type frame 11 of sleeve 6, be connected with sliding sleeve 10 on the U type frame 11, the center of sliding sleeve 10 is provided with spool 31, spool 31 is connected on the hood 8 by bolt 28, the front end of spool 31 in U type frame 11 is provided with sport cap 14, is provided with spring 12 in the sport cap 14, and the two ends of spring 12 respectively are provided with a steel ball 13, steel ball 13 withstands on the positioning hole 32 on the U type frame 11, and the oilhole 33 on the spool 31 is connected with filler opening 29.Oil outlet 35 on the spool 31 is connected with oil outlet 34.
Positioning hole 32 on the U type frame 11 has two groups of front and back, and positioning hole 32 is provided with chamfering with steel ball 13 contacting points.
The utility model has the advantages that simple in structurely, through gathering, volume is little, and the outside need not any selector valve control, can realize the automatic reciprocating motion of piston, has saved a large amount of oil circuit controller spares.
Description of drawings
Fig. 1 is a piston of the present utility model structural representation at one end.
Fig. 2 is the structural representation of piston of the present utility model at the other end.
Among the figure: 1-coupling sleeve, 2-dust ring, 3-guidance tape, 4 oil sealings, the 5-O RunddichtringO, 6-sleeve, 7-nut, 8-hood, the 9-screw, 10-sliding sleeve, 11-U type frame, 12-spring, the 13-steel ball, 14-sport cap, 15-Cock screw, 16-guidance tape, the 17-piston ring, 18-O RunddichtringO, 19-piston, 20-spring, the 21-connecting rod, 22-position limiting slide block, 23-nut, the 24-piston rod, 25-circlip, 26-packing ring, the 27-O RunddichtringO, 28-bolt, 29-oil inlet and outlet, the 30-oil inlet and outlet, 31-spool, 32-positioning hole, the 33-oilhole, 34-return opening, 35-spill port.
Specific embodiments
End by sleeve 6 is fixed with hood 8, the other end is fixed with coupling sleeve 1 and forms cylinder barrel, between sleeve 6 and the hood 8, all be provided with O RunddichtringO 5 between sleeve 6 and the coupling sleeve 1, piston 19 is fixed with piston rod 24 and is installed in the cylinder barrel, guidance tape 16 is installed on the piston 19, piston ring 17 and O RunddichtringO 18, one side oil inlet and outlet 30 is located on the coupling sleeve 1, opposite side filler opening 29 is located on the hood 8, also be provided with return opening 34 on the hood 8, connecting rod 21 is installed in piston 19, piston rod 24, center hole and sleeve 6 in, connecting rod 21 is connected with nut 23 and is provided with spring 20 of piston rod 24, the two ends of spring 20 are position limiting slide blocks 22, connecting rod 21 is connected with U type frame 11 of sleeve 6, and by Cock screw 15 location, be connected with sliding sleeve 10 on the U type frame 11, the center of sliding sleeve 10 is provided with spool 31, spool 31 is connected on the hood 8 by bolt 28, be provided with packing ring 26 between bolt 28 and the hood 8, O RunddichtringO 27, the front end of spool 31 in U type frame 11 is connected with sport cap 14 by screw 9, be provided with spring 12 in the sport cap 14, the two ends of spring 12 respectively are provided with a steel ball 13, steel ball 13 withstands on the positioning hole 32 on the U type frame 11, and the oilhole 33 on the spool 31 is connected with filler opening 29.Also being provided with spill port 35 on the spool 31 is connected with return opening 34.Positioning hole 32 on the U type frame 11 has two groups of front and back.Positioning hole 32 is provided with chamfering with steel ball 13 contacting points.Between piston rod 24 and the coupling sleeve 1 dust ring 2 is arranged, guidance tape 3, oil sealing 4, the outer end of piston rod 24 is provided with circlip 25.
During work, give filler opening 29 simultaneously with high pressure oil, oil inlet and outlet 30, high pressure oil just enters the both sides of piston 19 simultaneously, at this moment spill port 35 is sealed by sliding sleeve 10, because the area of a side of piston 19 piston-rodless 24 is greater than the area of the side that piston rod 24 is arranged, the active force of rodless cavity is just big, piston 19 is just to a lateral movement of rod chamber, piston 19 drives piston rod 24 and moves together, when the back side of piston 19 runs to a lateral confinement position slide block 22, position limiting slide block 22 just begins pressure spring 20, high pressure oil is when promoting piston 19 motions, also exert pressure by 32 pairs of steel balls 13 of positioning hole, when the compressive force of spring 20 during greater than the support force of steel ball 13 and spring 12, steel ball 13 is thrown off positioning hole 32, piston 19 drives connecting rod 21 motions, connecting rod 21 drives 11 motions of U type frame, U type frame 11 drives sliding sleeve 10 motions, sliding sleeve 10 sealing oilholes 33, open spill port 35, at this moment drainback passage is opened, because 19 beginnings of pressure difference piston are to a lateral movement of rodless cavity, when piston rod 24 inner platforms with after opposite side position limiting slide block 22 contacts, spring 20 begins compression, when the compressive force of spring 20 during greater than the support force of steel ball 13 and spring 12, steel ball 13 is thrown off positioning holes 32, and piston 19 drives connecting rods 21 motions, connecting rod 21 drives 11 motions of U type frame, U type frame 11 drives sliding sleeve 10 motions, and sliding sleeve 10 sealing spill ports 35 are opened 33 1 circulations of oilhole and finished.If high pressure oil is supplied with then just periodic duty continuously of the utility model continuously.
Claims (3)
1, a kind of differential interior commutation automatic cycle oil cylinder, end by sleeve (6) is fixed with hood (8), the other end is fixed with coupling sleeve (1) and forms cylinder barrel, piston (19) is fixed with piston rod (24) and is installed in the cylinder barrel, oil inlet and outlet (30) is located on the coupling sleeve (1), filler opening (29), oil outlet (34) is located on the hood (8), it is characterized in that having a connecting rod (21) to be installed in piston (19), piston rod (24), center hole and sleeve (6) in, connecting rod (21) is provided with spring (20) of piston rod (24), the two ends of spring (20) are position limiting slide block (22), connecting rod (21) is connected with U type frame (11) of sleeve (6), be connected with sliding sleeve (10) on the U type frame (11), the center of sliding sleeve (10) is provided with spool (31), spool (31) is connected on the hood (8) by bolt (28), the front end of spool (31) in U type frame (11) is provided with sport cap (14), be provided with spring (12) in the sport cap (14), the two ends of spring (12) respectively are provided with a steel ball (13), steel ball (13) withstands on the positioning hole (32) on the U type frame (11), oil inlet hole (33) on the spool (31) is connected with filler opening (29), and the oil outlet (35) on the spool (31) is connected with oil outlet (34).
2, according to the said differential interior commutation automatic cycle oil cylinder of claim 1, it is characterized in that the positioning hole (32) on the said U type frame (11) has two groups of front and back.
3, according to claim 1 or 2 said differential interior commutation automatic cycle oil cylinders, it is characterized in that said positioning hole (32) and steel ball (13) contacting point are provided with chamfering.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202216053U CN201255153Y (en) | 2008-09-17 | 2008-09-17 | Differential pressure type internal inverting automatic cycle oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202216053U CN201255153Y (en) | 2008-09-17 | 2008-09-17 | Differential pressure type internal inverting automatic cycle oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201255153Y true CN201255153Y (en) | 2009-06-10 |
Family
ID=40738469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202216053U Expired - Fee Related CN201255153Y (en) | 2008-09-17 | 2008-09-17 | Differential pressure type internal inverting automatic cycle oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201255153Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822075A (en) * | 2014-02-19 | 2014-05-28 | 镇江索达联轴器有限公司 | Lubrication circulating system for engineering machinery |
| CN113718884A (en) * | 2021-08-31 | 2021-11-30 | 山东天瑞重工有限公司 | Valveless reversing type idle-driving-prevention hydraulic breaking hammer |
-
2008
- 2008-09-17 CN CNU2008202216053U patent/CN201255153Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822075A (en) * | 2014-02-19 | 2014-05-28 | 镇江索达联轴器有限公司 | Lubrication circulating system for engineering machinery |
| CN113718884A (en) * | 2021-08-31 | 2021-11-30 | 山东天瑞重工有限公司 | Valveless reversing type idle-driving-prevention hydraulic breaking hammer |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20160917 |