CN210978058U - Coaxial two-cylinder bidirectional superposition motion hydraulic cylinder - Google Patents
Coaxial two-cylinder bidirectional superposition motion hydraulic cylinder Download PDFInfo
- Publication number
- CN210978058U CN210978058U CN201921210243.2U CN201921210243U CN210978058U CN 210978058 U CN210978058 U CN 210978058U CN 201921210243 U CN201921210243 U CN 201921210243U CN 210978058 U CN210978058 U CN 210978058U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- end cover
- small
- piston shaft
- shaft
- 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.)
- Active
Links
Images
Abstract
The utility model discloses a two-cylinder bidirectional superposition movement hydraulic cylinder of coaxial line, including the big jar and the little jar that are connected, the big jar has big jar cylinder and piston hollow shaft, and the piston hollow shaft is located big jar cylinder, the little jar has little jar cylinder and piston shaft, piston shaft and piston hollow shaft coaxial line set up, part shaft coupling of piston shaft is located in the little jar cylinder, part shaft coupling stretches into in the piston hollow shaft; the hollow piston shaft of the large cylinder can coaxially move relative to the piston shaft of the small cylinder, and the piston shaft of the small cylinder can independently axially move. The hydraulic cylinder can realize bidirectional superposition motion.
Description
Technical Field
The utility model relates to a pneumatic cylinder specifically indicates a two-way stack motion pneumatic cylinder of coaxial line two jar.
Background
The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion, and is usually used for driving other components to make reciprocating motion.
The existing hydraulic cylinder generally comprises a cylinder barrel, an end cover, a piston shaft, a pull rod and a sealing ring, wherein the piston shaft is positioned in the cylinder barrel, and a part connected with the piston shaft is driven to perform reciprocating linear motion by the reciprocating motion of the piston shaft along the axial direction.
The existing hydraulic cylinder is of a single-cylinder structure, can only realize single reciprocating linear motion, and cannot realize bidirectional superimposed motion.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a two-way stack motion pneumatic cylinder of coaxial line two jars, this pneumatic cylinder can realize two-way stack motion.
The above object of the present invention is achieved by the following technical solutions: the utility model provides a two-way stack motion pneumatic cylinder of coaxial line two jar which characterized in that: the hydraulic cylinder comprises a large cylinder and a small cylinder which are connected, the large cylinder is provided with a large cylinder barrel and a piston hollow shaft, the piston hollow shaft is positioned in the large cylinder barrel, the small cylinder is provided with a small cylinder barrel and a piston shaft, the piston shaft and the piston hollow shaft are coaxially arranged, part of the shaft section of the piston shaft is positioned in the small cylinder barrel, and part of the shaft section extends into the piston hollow shaft; the hollow piston shaft of the large cylinder can coaxially move relative to the piston shaft of the small cylinder, and the piston shaft of the small cylinder can independently axially move.
The utility model discloses a pneumatic cylinder is double-cylinder structure, including the jar that is connected and vat. The hollow piston shaft of the large cylinder can realize coaxial line movement on the piston shaft of the small cylinder to finish fast forward, pressure maintaining and fast backward work; the piston shaft of the small cylinder can jump over the hollow piston shaft of the large cylinder, and the small cylinder completes self independent fast forward, pressure maintaining and fast backward work while the large cylinder completes fast forward, pressure maintaining and fast backward work.
In the utility model, the vat also comprises a vat base, a vat left end cover, a vat right end cover and a vat pull rod; the large cylinder right end cover is arranged on the large cylinder base, the large cylinder barrel is erected between the large cylinder left end cover and the large cylinder right end cover, and the large cylinder pull rod is also erected between the large cylinder left end cover and the large cylinder right end cover; the small cylinder is also provided with a small cylinder base, a small cylinder end cover and a small cylinder pull rod, the small cylinder end cover is arranged on the left end cover of the large cylinder, the small cylinder barrel is erected between the small cylinder base and the small cylinder end cover, and the small cylinder pull rod is also erected between the small cylinder base and the small cylinder end cover; the small cylinder end cover and the large cylinder left end cover are both provided with center holes, and the piston shaft penetrates through the center holes of the small cylinder end cover and the large cylinder left end cover and then extends into the piston hollow shaft.
The utility model discloses in, piston hollow shaft and piston shaft all have the piston cover.
The utility model discloses in, the installation tip of big cylinder and little cylinder all is provided with O type circle.
The utility model discloses in, the installation tip of big jar pull rod and little jar pull rod all is provided with the plain washer.
The utility model discloses in, vat pull rod and little jar pull rod are four.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a perspective view of a coaxial two-cylinder bidirectional superposition motion hydraulic cylinder of the present invention;
FIG. 2 is a cross-sectional view of the coaxial two-cylinder bidirectional superposition motion hydraulic cylinder of the present invention;
FIG. 3 is a cross-sectional view A-A of FIG. 2;
fig. 4 is an exploded view of the coaxial two-cylinder bidirectional superposition motion hydraulic cylinder of the present invention.
In the figure:
1. a small cylinder pull rod; 2. A small cylinder base; 3. A small cylinder barrel; 4. A small cylinder end cover;
5. a large cylinder left end cover; 6. A large cylinder barrel; 7. A vat base; 8. A large cylinder right end cover;
9. a large cylinder pull rod; 10. A hollow piston shaft; 11. A piston shaft.
Detailed Description
The coaxial two-cylinder bidirectional superposition motion hydraulic cylinder shown in fig. 1 to 4 comprises a large cylinder and a small cylinder which are connected, wherein the large cylinder is provided with a large cylinder barrel 6 and a hollow piston shaft 10, the hollow piston shaft 10 is positioned in the large cylinder barrel 6, the small cylinder is provided with a small cylinder barrel 3 and a piston shaft 11, the piston shaft 11 and the hollow piston shaft 10 are arranged coaxially, part of the shaft section of the piston shaft 11 is positioned in the small cylinder barrel 3, and part of the shaft section extends into the hollow piston shaft 10; the hollow piston shaft 10 of the large cylinder can coaxially move relative to the piston shaft 11 of the small cylinder, and the piston shaft 11 of the small cylinder can independently axially move.
In the embodiment, the large cylinder is also provided with a large cylinder base 7, a large cylinder left end cover 5, a large cylinder right end cover 8 and a large cylinder pull rod 9; the large cylinder right end cover 8 is arranged on the large cylinder base 7, the large cylinder barrel 6 is erected between the large cylinder left end cover 5 and the large cylinder right end cover 8, and the large cylinder pull rod 9 is also erected between the large cylinder left end cover 5 and the large cylinder right end cover 8; the small cylinder is also provided with a small cylinder base 2, a small cylinder end cover 4 and a small cylinder pull rod 1, the small cylinder end cover 4 is arranged on a large cylinder left end cover 5, a small cylinder barrel 3 is erected between the small cylinder base 2 and the small cylinder end cover 4, and the small cylinder pull rod 1 is also erected between the small cylinder base 2 and the small cylinder end cover 4; the small cylinder end cover 4 and the large cylinder left end cover 5 are both provided with central holes, and the piston shaft 11 penetrates through the central holes of the small cylinder end cover 4 and the large cylinder left end cover 5 and then extends into the piston hollow shaft 10.
In the present embodiment, the hollow piston shaft 10 and the piston shaft 11 each have a piston sleeve; the mounting end parts of the large cylinder barrel 6 and the small cylinder barrel 3 are provided with O-shaped rings; flat washers are arranged at the mounting end parts of the large cylinder pull rod 9 and the small cylinder pull rod 1; the number of the large cylinder pull rod 9 and the number of the small cylinder pull rod 1 are four.
The above embodiments of the present invention are not right the utility model discloses the limited protection scope, the utility model discloses an embodiment is not limited to this, all kinds of basis according to the above-mentioned of the utility model discloses an under the above-mentioned basic technical thought prerequisite of the utility model, right according to ordinary technical knowledge and the conventional means in this field the modification, replacement or the change of other multiple forms that above-mentioned structure made all should fall within the protection scope of the utility model.
Claims (6)
1. The utility model provides a two-way stack motion pneumatic cylinder of coaxial line two jar which characterized in that: the hydraulic cylinder comprises a large cylinder and a small cylinder which are connected, the large cylinder is provided with a large cylinder barrel (6) and a hollow piston shaft (10), the hollow piston shaft (10) is positioned in the large cylinder barrel (6), the small cylinder is provided with a small cylinder barrel (3) and a piston shaft (11), the piston shaft (11) and the hollow piston shaft (10) are coaxially arranged, part of the shaft section of the piston shaft (11) is positioned in the small cylinder barrel (3), and part of the shaft section extends into the hollow piston shaft (10); the hollow piston shaft (10) of the large cylinder can coaxially move relative to the piston shaft (11) of the small cylinder, and the piston shaft (11) of the small cylinder can independently axially move.
2. The coaxial two-cylinder bidirectional superimposed motion hydraulic cylinder of claim 1, characterized in that: the large cylinder is also provided with a large cylinder base (7), a large cylinder left end cover (5), a large cylinder right end cover (8) and a large cylinder pull rod (9); the large cylinder right end cover (8) is arranged on the large cylinder base (7), the large cylinder barrel (6) is erected between the large cylinder left end cover (5) and the large cylinder right end cover (8), and the large cylinder pull rod (9) is also erected between the large cylinder left end cover (5) and the large cylinder right end cover (8); the small cylinder is also provided with a small cylinder base (2), a small cylinder end cover (4) and a small cylinder pull rod (1), the small cylinder end cover (4) is installed on the large cylinder left end cover (5), the small cylinder barrel (3) is erected between the small cylinder base (2) and the small cylinder end cover (4), and the small cylinder pull rod (1) is also erected between the small cylinder base (2) and the small cylinder end cover (4); the small cylinder end cover (4) and the large cylinder left end cover (5) are both provided with center holes, and the piston shaft (11) penetrates through the center holes of the small cylinder end cover (4) and the large cylinder left end cover (5) and then extends into the piston hollow shaft (10).
3. The coaxial two-cylinder bidirectional superimposed motion hydraulic cylinder of claim 2, characterized in that: the hollow piston shaft (10) and the hollow piston shaft (11) are both provided with piston sleeves.
4. The coaxial two-cylinder bidirectional superimposed motion hydraulic cylinder of claim 2, characterized in that: and the mounting end parts of the large cylinder barrel (6) and the small cylinder barrel (3) are provided with O-shaped rings.
5. The coaxial two-cylinder bidirectional superimposed motion hydraulic cylinder of claim 2, characterized in that: and the mounting end parts of the large cylinder pull rod (9) and the small cylinder pull rod (1) are respectively provided with a flat gasket.
6. The coaxial two-cylinder bidirectional superimposed motion hydraulic cylinder of claim 2, characterized in that: the large cylinder pull rod (9) and the small cylinder pull rod (1) are four.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210243.2U CN210978058U (en) | 2019-07-29 | 2019-07-29 | Coaxial two-cylinder bidirectional superposition motion hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921210243.2U CN210978058U (en) | 2019-07-29 | 2019-07-29 | Coaxial two-cylinder bidirectional superposition motion hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210978058U true CN210978058U (en) | 2020-07-10 |
Family
ID=71460547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921210243.2U Active CN210978058U (en) | 2019-07-29 | 2019-07-29 | Coaxial two-cylinder bidirectional superposition motion hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210978058U (en) |
-
2019
- 2019-07-29 CN CN201921210243.2U patent/CN210978058U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201636117U (en) | Adjustable gap-buffer hydraulic cylinder | |
| CN108591165B (en) | Compact type double-rod hydraulic cylinder | |
| CN107218368B (en) | Porous ultrasonic transmission pair | |
| CN210978058U (en) | Coaxial two-cylinder bidirectional superposition motion hydraulic cylinder | |
| CN111120449A (en) | Double-acting air cylinder | |
| CN202646221U (en) | Large aperture hydraulic cylinder | |
| CN109114063A (en) | A kind of piston and piston rod make the cylinder apparatus of arc trajectory movement | |
| CN210637310U (en) | Three-axis hydraulic oil cylinder | |
| CN106286462A (en) | A kind of bi-directional expansion oil cylinder | |
| CN209026093U (en) | A kind of dust collecting apparatus vibration absorber | |
| CN109253123B (en) | Automatic reciprocating oil cylinder for road marking | |
| CN213134899U (en) | Wear-resisting impact resistance electro-hydraulic hammer rod | |
| CN202646222U (en) | Oil cylinder and hydraulic system | |
| CN102133650B (en) | Hydraulic elastic sleeve type tailstock | |
| CN219754960U (en) | Reverse pushing type multistage hydraulic cylinder | |
| CN104932059A (en) | Tail accessory of connector and drop-proof member thereof | |
| CN201543734U (en) | Double inclined surface rubber hose assembly press machine | |
| CN215172162U (en) | Gear shifting oil cylinder for tractor | |
| CN204755218U (en) | Single -row multi -stage compressor common platform | |
| CN211259204U (en) | Equal-thrust hydraulic multi-stage suspension oil cylinder | |
| CN220204717U (en) | Valve sleeve and valve core assembly of hydraulic breaking hammer reversing valve | |
| CN213206156U (en) | Double-stroke limiting hydraulic cylinder | |
| CN210461504U (en) | Nitrogen spring with flange mounting disc | |
| CN213775902U (en) | Novel mould assembling overturning hydraulic cylinder | |
| CN210034012U (en) | Hydraulic cylinder guide sleeve structure and hydraulic cylinder thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |