CN202391859U - Double-acting hydraulic cylinder of channeling machine - Google Patents
Double-acting hydraulic cylinder of channeling machine Download PDFInfo
- Publication number
- CN202391859U CN202391859U CN2011205266060U CN201120526606U CN202391859U CN 202391859 U CN202391859 U CN 202391859U CN 2011205266060 U CN2011205266060 U CN 2011205266060U CN 201120526606 U CN201120526606 U CN 201120526606U CN 202391859 U CN202391859 U CN 202391859U
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- China
- Prior art keywords
- piston
- valve seat
- cylinder
- oil pump
- nut
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- 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 model provides a double-acting hydraulic cylinder of a channeling machine, which comprises a valve seat, an oil tank connected with the valve seat, an oil cylinder arranged in the oil tank, and a piston and a piston rod arranged in the oil cylinder; the double-acting hydraulic cylinder also comprises an oil pump arranged on the valve seat, a jiggle bar assembly connected with the piston rod of the oil pump, and a mounting ring connected at the lower end of the piston rod, wherein the oil pump comprises a cylinder sleeve matched with the valve seat, a big piston, a small piston, the piston rod of the oil pump and a screw sleeve, wherein the big piston, the small piston and the piston rod of the oil pump are arranged in the cylinder sleeve, and the screw sleeve is matched with the cylinder sleeve; a low-pressure overflow valve and a high-pressure overflow valve in the valve seat are symmetrically distributed on the same plane, and a pressure release valve and the low-pressure overflow valve are arranged on the same plane and form a certain angle; the lower end of the piston rod is provided with a nut matched with the piston rod; and the mounting ring is fixedly connected with the nut. The double-acting hydraulic cylinder reduces the manufacture difficulty and the production cost, is more convenient to operate when being arranged on the channeling machine, and can conveniently adjust the processing space of the channeling machine. The double-acting hydraulic cylinder is mainly used for the channeling machine.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder, particularly relates to a kind of channeling machine double-acting hydraulic cylinder.
Background technique
At present, the channeling machine that in building, structural fire protection, municipal water supply and field of mining, all is widely used is used for steel pipe added and couples together.The oil hydraulic cylinder that uses on the existing channeling machine can not satisfy the needs of heavy channeling machine, and main cylinder point is an one of which, and the cylinder sleeve of oil pump and valve seat are an overall structure; Difficulty of processing is big, and processing cost is high, and seal ring directly is embedded on the cylinder sleeve; Non-adjustable, working life is short; Two, low pressure relief valve in the valve seat and high-pressure overflow valve are positioned at the valve seat axis with on the horizontal plane on one side; Decompression valves then is positioned at the axisymmetric position of low pressure relief valve and high pressurized overflow; And not on same horizontal plane; Thereby increased valve seat thickness, be installed in very inconvenience of operation when using on the channeling machine; Three, the installing ring of piston-rod lower end is to be fixed on the piston rod, can not adjust the position up and down, therefore can't adjust the processing space of channeling machine, uses inconvenient.
The model utility content
The purpose of the utility model is to overcome above-mentioned shortcoming, provides a kind of manufacture difficulty to reduce, and cost of production reduces, and is installed in back more convenient operation on the channeling machine, and is convenient to adjust the channeling machine double-acting hydraulic cylinder of channeling machine processing space again.
The utility model channeling machine double-acting hydraulic cylinder comprises valve seat, and the fuel tank that is connected with valve seat is arranged on the oil cylinder in the fuel tank; Be positioned at in-oil cylinder piston and piston rod; Be arranged on the oil pump on the valve seat, the crank handle assembly that is connected with the oil pump piston bar, the installing ring that is connected with piston-rod lower end.Wherein, oil pump comprises the cylinder sleeve that cooperates with valve seat, and the swivel nut that cooperates with cylinder sleeve is arranged on big piston, small piston and oil pump piston bar in the cylinder sleeve, is embedded in the seal ring in the cylinder sleeve, and is arranged on the back-up ring between cylinder sleeve and swivel nut.Low pressure relief valve and high-pressure overflow valve in the valve seat are symmetrically distributed on the same horizontal plane, and Decompression valves and low pressure relief valve and high-pressure overflow valve are positioned on the same horizontal plane and at angle.Piston-rod lower end is provided with and is mated nut, and nut can be a flanged (FLGD) nut, or two nuts, and wherein the nut of lower end is flanged (FLGD) nut, and installing ring is installed on flanged (FLGD) nut, and is connected with channeling machine through screw.
The working principle of the utility model channeling machine double-acting hydraulic cylinder is, at first closes Decompression valves, shakes handle assembly; Drive large and small piston motion through the oil pump piston bar; When large and small piston stroking upward, form vacuum in the oil pump, the hydraulic oil in the fuel tank gets into two spaces in the oil pump; When large and small descent of piston, hydraulic oil is extruded the entering oil cylinder.Shake handle assembly so continuously, constantly with hydraulic oil from the fuel tank sucking-off, clamp-on in the oil cylinder again.When channeling machine roll extrusion steel pipe, the oil cylinder load strengthens, and the low pressure relief valve that communicates with big piston space oil circuit is opened, and this part hydraulic oil is back to fuel tank; Have only the high-pressure and hydraulic oil in small piston space to continue to get into oil cylinder, promote descent of piston, finish up to slot rolling; In this process as when superpressure occurring, high-pressure overflow valve is opened, and plays a protective role; After slot rolling finishes, open Decompression valves, in-oil cylinder hydraulic oil is back to fuel tank.
The advantage of the utility model channeling machine double-acting hydraulic cylinder is one of which; Owing to the cylinder sleeve and the valve body of oil pump are separated into two parts, have reduced difficulty of processing, thereby reduced cost of production; Can adjust the seal ring position after increasing back-up ring, thereby prolong the working life of seal ring.Its two, under the prerequisite that does not change original valve seat construction, only need to change the relative position of low pressure relief valve, high-pressure overflow valve and Decompression valves, just can make the valve seat attenuation, thereby be installed in when using on the channeling machine more convenient operation.Its three, increase nut at piston-rod lower end, can adjust the upper-lower position of installing ring, thereby can adjust the processing space of channeling machine.
Description of drawings
Fig. 1: the utility model plan view.
Fig. 2: the A-A sectional view among Fig. 1.
The D of Fig. 3: Fig. 1 is to view.
The C-C sectional view of Fig. 4: Fig. 3.
Embodiment
The utility model channeling machine double-acting hydraulic cylinder comprises valve seat 1, and the fuel tank 2 that is connected with valve seat 1 is arranged on the oil cylinder 3 in the fuel tank 2; Be positioned at the piston 4 and the piston rod 5 of oil cylinder 3; Be arranged on the oil pump on the valve seat 1, the crank handle assembly 18 that is connected with oil pump piston bar 10, two nuts 16 that are connected with piston rod 5 lower ends; Following nut 16 is flanged (FLGD) nut, and installing ring 17 is installed on the nut 16.Wherein, Oil pump comprises the cylinder sleeve 6 that cooperates with valve seat 1, and the swivel nut 7 that cooperates with cylinder sleeve 6 is arranged on big piston 8, small piston 9 and oil pump piston bar 10 in the cylinder sleeve 6; Be embedded in the seal ring 11 in the cylinder sleeve 6, and the back-up ring 12 that is arranged on 7 of cylinder sleeve 6 and swivel nuts.Low pressure relief valve 13 in the valve seat 1 is distributed on the same horizontal plane with 14 titles of high-pressure overflow valve, and Decompression valves 15 is positioned on the same horizontal plane with low pressure relief valve 13 and high-pressure overflow valve 14 and at angle.
Claims (3)
1. a channeling machine double-acting hydraulic cylinder comprises valve seat, the fuel tank that is connected with valve seat; Be arranged on the oil cylinder in the fuel tank, be positioned at in-oil cylinder piston and piston rod, be arranged on the oil pump on the valve seat; The crank handle assembly that is connected with the oil pump piston bar, the installing ring that is connected with piston-rod lower end is characterized in that oil pump comprises the cylinder sleeve that its lower end cooperates with valve seat; Be arranged on big piston, small piston and oil pump piston bar in the cylinder sleeve, the swivel nut that cooperates with the cylinder sleeve upper end; Low pressure relief valve and high-pressure overflow valve axle in the valve seat are claimed to be distributed on the same horizontal plane, and Decompression valves and low pressure relief valve and high pressurized overflow are positioned on the same horizontal plane and at angle; Piston-rod lower end is provided with the nut that is mated, and installing ring is installed on the nut.
2. channeling machine double-acting hydraulic cylinder as claimed in claim 1 is characterized in that being inlaid with in the cylinder sleeve seal ring, is provided with back-up ring between cylinder sleeve and swivel nut.
3. channeling machine double-acting hydraulic cylinder as claimed in claim 1 is characterized in that nut is the nut that has flange, and installing ring is connected with channeling machine through screw with nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205266060U CN202391859U (en) | 2011-12-16 | 2011-12-16 | Double-acting hydraulic cylinder of channeling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205266060U CN202391859U (en) | 2011-12-16 | 2011-12-16 | Double-acting hydraulic cylinder of channeling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202391859U true CN202391859U (en) | 2012-08-22 |
Family
ID=46666788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205266060U Expired - Fee Related CN202391859U (en) | 2011-12-16 | 2011-12-16 | Double-acting hydraulic cylinder of channeling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202391859U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438561A (en) * | 2016-11-02 | 2017-02-22 | 常州市双强机械制造有限公司 | Water conservancy hydraulic machine sleeve-division oil cylinder special-shaped forge piece |
-
2011
- 2011-12-16 CN CN2011205266060U patent/CN202391859U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106438561A (en) * | 2016-11-02 | 2017-02-22 | 常州市双强机械制造有限公司 | Water conservancy hydraulic machine sleeve-division oil cylinder special-shaped forge piece |
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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: 20120822 Termination date: 20201216 |