CN207093497U - A kind of spacing hydraulic cylinder of two-pass - Google Patents
A kind of spacing hydraulic cylinder of two-pass Download PDFInfo
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- CN207093497U CN207093497U CN201720832529.9U CN201720832529U CN207093497U CN 207093497 U CN207093497 U CN 207093497U CN 201720832529 U CN201720832529 U CN 201720832529U CN 207093497 U CN207093497 U CN 207093497U
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Abstract
The utility model discloses a kind of spacing hydraulic cylinder of two-pass, it includes cylinder cap, cylinder barrel, piston rod, first piston, second piston and cylinder bottom, the cylinder cap and cylinder bottom are individually fixed in the both ends of the cylinder barrel, the piston rod can be movably arranged in the cylinder barrel, the first piston and second piston are arranged at intervals on the piston rod and in the cylinder barrels, the diameter of section of the first piston is more than the diameter of section of the second piston, the first cavity is formed between the first piston and the cylinder cap, the second cavity is formed between the second piston and first piston, the 3rd cavity is formed between the second piston and the cylinder bottom, first cavity, second cavity and the 3rd cavity are communicated with oil hydraulic circuit.The above-mentioned spacing hydraulic cylinder of two-pass can be realized spacing to the two-pass of piston rod.It is not only simple in structure, it is easy to accomplish；And cost is low, stable and reliable operation.
Description
Technical field
A kind of hydraulic cylinder is the utility model is related to, more particularly, to a kind of spacing hydraulic cylinder of two-pass.
Background technology
Hydraulic jack is that hydraulic energy is changed into mechanical energy, does the hydraulic pressure execution of straight reciprocating motion (or oscillating motion)
Element.Its simple in construction, reliable operation.During with it to realize reciprocating motion, deceleration device can be removed from, and without between transmission
Gap, stable movement, therefore be used widely in various mechanical hydraulic systems.
It is well known that to need hydraulic cylinder to carry out two-pass spacing for some specific occasions, to meet its job requirement.
At present, the shortcomings that existing hydraulic cylinder generally existing spacing with two-pass is complicated, cost is high and fault rate is high.
Utility model content
The purpose of this utility model is to provide a kind of two-pass spacing hydraulic cylinder, and it is realizing spacing same of two-pass
When, there is the characteristics of low simple in construction, cost and stable and reliable operation, deposited with solving the spacing hydraulic cylinder of two-pass in the prior art
Above mentioned problem.
To use following technical scheme up to this purpose, the utility model：
A kind of spacing hydraulic cylinder of two-pass, it includes cylinder cap, cylinder barrel, piston rod, first piston, second piston and cylinder bottom,
The cylinder cap and cylinder bottom are individually fixed in the both ends of the cylinder barrel, and the piston rod can be movably arranged in the cylinder barrel, institute
State first piston and second piston is arranged at intervals on the piston rod and in the cylinder barrel, the section of the first piston
Diameter is more than the diameter of section of the second piston, forms the first cavity between the first piston and the cylinder cap, and described the
The second cavity is formed between two pistons and first piston, the 3rd cavity is formed between the second piston and the cylinder bottom, it is described
First cavity, the second cavity and the 3rd cavity are communicated with oil hydraulic circuit.
Especially, hollow mandrel is fixed with the outside of the cylinder bottom, guide rod, the guide rod is provided with the mandrel
One end be fixedly connected on the end of the piston rod, coordinate the guide rod to be provided with two in the outside spacers of the mandrel
Proximity switch.
Especially, swivel joint can be rotatably mounted by bearing outside the mandrel.
Especially, three oil inlets are arranged at intervals with the swivel joint, three oil inlets pass through oil input channel point
It is not connected with the first cavity, the second cavity and the 3rd cavity.
The beneficial effects of the utility model are that the spacing hydraulic cylinder of the two-pass is by setting dual-active compared with prior art
Plug structure, while two proximity switches are triggered by guide rod, realize spacing to the two-pass of piston rod.Not only structure letter
It is single, it is easy to accomplish；And cost is low, stable and reliable operation.
Brief description of the drawings
Fig. 1 is the structural representation for the spacing hydraulic cylinder of two-pass that the utility model embodiment 1 provides.
Embodiment
Further illustrate the technical solution of the utility model below in conjunction with the accompanying drawings and by embodiment.
Refer to shown in Fig. 1, Fig. 1 is the knot for the spacing hydraulic cylinder of two-pass that the utility model embodiment 1 provides
Structure schematic diagram.
In the present embodiment, the hydraulic cylinder of tape travel detection a kind of includes cylinder cap 1, cylinder barrel 2, piston rod 3, first piston 4, the
Two pistons 5 and cylinder bottom 6, the cylinder cap 1 and cylinder bottom 6 are individually fixed in the both ends of the cylinder barrel 2, and the piston rod 3 can be movably
It is arranged in the cylinder barrel 2, the first piston 4 and second piston 5 are arranged at intervals on the piston rod 3 and are located at the cylinder
In cylinder 2, the diameter of section of the first piston 4 is more than the diameter of section of the second piston 5, the first piston 4 with it is described
The first cavity 7 is formed between cylinder cap 1, the second cavity 8, the second piston are formed between the second piston 5 and first piston 4
The 3rd cavity 9 is formed between 5 and the cylinder bottom 6.
The outside of cylinder bottom 6 is fixed with hollow mandrel 10 by fixing bolt, and guide rod is provided with the mandrel 10
11, swivel joint 12, the outer end interval peace of the swivel joint 12 can be rotatably mounted by bearing outside the mandrel 10
Equipped with two proximity switches 13, one end of the guide rod 11 is fixedly connected on the end of the piston rod 3, and the other end penetrates institute
Mandrel 10 is stated to set.
Three oil inlets 14 are arranged at intervals with the swivel joint 12, three oil inlets 14 by oil input channel respectively with
First cavity 7, the second cavity 8 are connected with the 3rd cavity 9, and first cavity 7, the second cavity 8 and the 3rd cavity 9 are also logical
Oil road is crossed with oil leak hole 15 to be connected.
The hydraulic cylinder of above-mentioned tape travel detection can carry out that two-pass is spacing, and its stroke-limit is S2 and S1 in the present embodiment
+S2.When meeting S1+S2 stroke-limits, the oil-feed of the 3rd cavity 9, the cavity 8 of the first cavity 7 and second is fuel-displaced；Will
When meeting S2 stroke-limits, the oil-feed simultaneously of 8 and the 3rd cavity of the second cavity 9, first cavity 7 is fuel-displaced, and is working
The first cavitys of Shi Suoshu 7 need to carry out pressurize.
Above example simply elaborates general principle and characteristic of the present utility model, and the utility model is not by above-mentioned example
Limitation, on the premise of the spirit and scope of the utility model is not departed from, the utility model also has various change and change, these changes
Change and change and both fall within claimed the scope of the utility model.The utility model requires protection scope will by appended right
Ask book and its equivalent thereof.
Claims (4)
1. a kind of spacing hydraulic cylinder of two-pass, it is characterised in that it includes cylinder cap, cylinder barrel, piston rod, first piston, the second work
Plug and cylinder bottom, the cylinder cap and cylinder bottom are individually fixed in the both ends of the cylinder barrel, and the piston rod can movably be arranged at described
In cylinder barrel, the first piston and second piston are arranged at intervals on the piston rod and in the cylinder barrel, and described first
The diameter of section of piston is more than the diameter of section of the second piston, and the first chamber is formed between the first piston and the cylinder cap
Body, the second cavity is formed between the second piston and first piston, the 3rd is formed between the second piston and the cylinder bottom
Cavity, first cavity, the second cavity and the 3rd cavity are communicated with oil hydraulic circuit.
2. the spacing hydraulic cylinder of two-pass according to claim 1, it is characterised in that be fixed with the outside of the cylinder bottom hollow
Mandrel, guide rod is provided with the mandrel, one end of the guide rod is fixedly connected on the end of the piston rod, coordinates institute
State guide rod and two proximity switches are installed in the outside spacers of the mandrel.
3. the spacing hydraulic cylinder of two-pass according to claim 2, it is characterised in that can be turned by bearing outside the mandrel
Swivel joint is installed dynamicly.
4. the spacing hydraulic cylinder of two-pass according to claim 3, it is characterised in that be arranged at intervals with the swivel joint
Three oil inlets, three oil inlets are connected with the first cavity, the second cavity and the 3rd cavity respectively by oil input channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832529.9U CN207093497U (en) | 2017-07-10 | 2017-07-10 | A kind of spacing hydraulic cylinder of two-pass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720832529.9U CN207093497U (en) | 2017-07-10 | 2017-07-10 | A kind of spacing hydraulic cylinder of two-pass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207093497U true CN207093497U (en) | 2018-03-13 |
Family
ID=61556085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720832529.9U Active CN207093497U (en) | 2017-07-10 | 2017-07-10 | A kind of spacing hydraulic cylinder of two-pass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207093497U (en) |
-
2017
- 2017-07-10 CN CN201720832529.9U patent/CN207093497U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Huishan Yanqiao street Changan 214177 West Street in Jiangsu city of Wuxi province (No. 29 Changjiang Hydraulic Cylinder Factory) Patentee after: Wuxi Changjiang Hydraulic Cylinder Co., Ltd. Address before: Huishan Yanqiao street Changan 214177 West Street in Jiangsu city of Wuxi province (No. 29 Changjiang Hydraulic Cylinder Factory) Patentee before: Wuxi Changjiang Hydraulic Cylinder Factory |