CN220168278U - Quick-change oil cylinder for excavator - Google Patents
Quick-change oil cylinder for excavator Download PDFInfo
- Publication number
- CN220168278U CN220168278U CN202321937594.XU CN202321937594U CN220168278U CN 220168278 U CN220168278 U CN 220168278U CN 202321937594 U CN202321937594 U CN 202321937594U CN 220168278 U CN220168278 U CN 220168278U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- quick
- excavator
- cylinder body
- way valve
- 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
- 239000012530 fluid Substances 0.000 claims description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
Landscapes
- Actuator (AREA)
Abstract
The utility model belongs to the technical field of quick-change oil cylinders for excavators, and relates to a quick-change oil cylinder for an excavator.
Description
Technical Field
The utility model belongs to the technical field of quick-change oil cylinders for excavators, and particularly relates to a quick-change oil cylinder for an excavator.
Background
The quick-change oil cylinder is an important matched set in the field of engineering machinery, and a piston rod is made to move linearly relative to an oil cylinder body by utilizing hydraulic pressure in the working process, so that the quick-change oil cylinder is commonly used in an excavator quick-change device to realize quick-change of a bucket or an accessory so as to meet the operation requirement of an excavator. The existing quick-change oil cylinder for the excavator is provided with the check valve outside the cylinder body, and the check valve with the structure protrudes outside the cylinder body, so that the volume of the oil cylinder can be increased, and the oil cylinder is easy to damage due to collision in the operation process, thereby influencing normal excavating operation. In addition, in the existing quick-change oil cylinder for the excavator, the one-way valve is connected with the pressure-maintaining cavity of the oil cylinder through an oil pipe, so that the oil path is long, the process holes are more, the cost is high, oil leakage is easy, the pressure is not maintained, and the reliability of the operation of the excavator is reduced. In addition, in the existing quick-change oil cylinder for the excavator, the oil port is low in setting integration, cannot be directly connected with the one-way valve, and is low in safety.
Disclosure of Invention
The utility model provides a quick-change oil cylinder for an excavator, which can solve the problems pointed out in the background art.
The utility model provides a quick change cylinder for excavator, includes the hydro-cylinder body, the hydro-cylinder body includes cylinder body, piston rod, cylinder cap, the left and right sides of piston forms rodless cavity and has the pole cavity, be equipped with the check valve on the cylinder body, the first interface and the rodless cavity intercommunication of check valve, its first hydraulic fluid port of second interface connection, its third interface connection second hydraulic fluid port and through oil pipe with have pole cavity intercommunication.
Preferably, the cylinder body comprises a cylinder bottom and a cylinder barrel, and the one-way valve is arranged in the cylinder bottom.
Preferably, the one-way valve is a hydraulic control one-way valve.
The beneficial effects are that: the utility model provides a quick-change oil cylinder for an excavator, which integrates a one-way valve on a cylinder body, has the advantages of compact structural design, short oil path, small process hole, few fault points, low cost and the like, and the first interface is directly communicated with the inside of a cylinder barrel, so that the pressure maintaining of the quick-change oil cylinder is more reliable.
Drawings
Figure 1 is a schematic view of the internal structure of the present utility model,
figure 2 is a schematic view of the external structure of the present utility model,
figure 3 is a schematic view of the hydraulic principle of the utility model,
reference numerals illustrate:
reference numerals in the drawings: a cylinder 1; a piston 2; a piston rod 3; a cylinder head 4; a rodless chamber 5; a rod chamber 6; a one-way valve 7; a first interface 71; a second interface 72; a third interface 73; a first oil port 8; a second oil port 9; an oil pipe 10; a cylinder bottom 11; a cylinder 12.
Detailed Description
One embodiment of the present utility model will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present utility model is not limited by the embodiment.
Examples:
as shown in fig. 1-3, the quick-change oil cylinder for the excavator provided by the embodiment of the utility model comprises an oil cylinder body, wherein the oil cylinder body comprises a cylinder body 1, a piston 2, a piston rod 3 and a cylinder cover 4, a rodless cavity 5 and a rod cavity 6 are formed on the left side and the right side of the piston 2, a one-way valve 7 is arranged on the cylinder body 1, the one-way valve 7 is preferably a hydraulic control one-way valve, a first interface 71 of the one-way valve 7 is communicated with the rodless cavity 5, a second interface 72 of the one-way valve is connected with a first oil port 8, a third interface 73 of the one-way valve is connected with a second oil port 9, and the one-way valve is communicated with the rod cavity 6 through an oil pipe 10.
Specifically, cylinder body 1 includes cylinder bottom 11 and cylinder 12, and the check valve 7 embeds in cylinder bottom 11, and first hydraulic fluid port 8 and second hydraulic fluid port 9 are offered respectively on cylinder bottom 11, and cylinder bottom 11, cylinder 12 and oil pipe 10 welded connection form cylinder body 1, make the structure compacter, and the volume is compacter.
The foregoing disclosure is merely illustrative of some embodiments of the utility model, but the embodiments are not limited thereto and variations within the scope of the utility model will be apparent to those skilled in the art.
Claims (3)
1. The utility model provides a quick change cylinder for excavator, includes the hydro-cylinder body, the hydro-cylinder body includes cylinder body (1), piston (2), piston rod (3), cylinder cap (4), the left and right sides of piston (2) forms rodless cavity (5) and has pole cavity (6), its characterized in that: be equipped with check valve (7) on cylinder body (1), the first interface (71) of check valve (7) communicate with rodless cavity (5), and first hydraulic fluid port (8) are connected to its second interface (72), and second hydraulic fluid port (9) are connected through oil pipe (10) and with have pole cavity (6) intercommunication to its third interface (73).
2. The quick-change cylinder for an excavator according to claim 1, wherein: the cylinder body (1) comprises a cylinder bottom (11) and a cylinder barrel (12), and the one-way valve (7) is arranged in the cylinder bottom (11).
3. The quick-change cylinder for an excavator according to claim 1, wherein: the one-way valve (7) is a hydraulic control one-way valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321937594.XU CN220168278U (en) | 2023-07-22 | 2023-07-22 | Quick-change oil cylinder for excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321937594.XU CN220168278U (en) | 2023-07-22 | 2023-07-22 | Quick-change oil cylinder for excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220168278U true CN220168278U (en) | 2023-12-12 |
Family
ID=89058160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321937594.XU Active CN220168278U (en) | 2023-07-22 | 2023-07-22 | Quick-change oil cylinder for excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220168278U (en) |
-
2023
- 2023-07-22 CN CN202321937594.XU patent/CN220168278U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6266959B1 (en) | Device for saving energy | |
| EP1580437A1 (en) | Hydraulic cylinder for use in a hydraulic tool | |
| CN104863909B (en) | With the spring pressurizing closed hydraulic oil container of volume, pressure and leakage detection function | |
| CN201915433U (en) | Hydraulic regeneration system for diggers | |
| CN113550957A (en) | Two-stage synchronous hydraulic cylinder | |
| CN220168278U (en) | Quick-change oil cylinder for excavator | |
| CN213419539U (en) | Pumping main valve | |
| CN104455548A (en) | Oil regenerating valve and working method thereof | |
| CN211525242U (en) | Hydraulic oil cylinder integrated with valve block | |
| CN102678649B (en) | Half integral load-sensing multiway valve | |
| CN202381429U (en) | Forward jumping prevention control valve of crane telescopic oil cylinder and crane telescopic system | |
| CN204878101U (en) | Take off -load valve core to let out formula hydraulic pressure lock valve device in | |
| CN213419545U (en) | Integrated pumping main valve | |
| CN110894731B (en) | Working device buffer system and engineering equipment | |
| CN102304931A (en) | Hydraulic energy-saving control system and method for loader movable arm | |
| CN210531263U (en) | Speed regulating valve for excavator | |
| CN210290305U (en) | Load holding valve and engineering machinery with same | |
| CN114450513A (en) | Pre-pressure valve and hydraulic reversing valve | |
| CN116753206A (en) | Safe quick-change oil cylinder for excavator | |
| CN215171135U (en) | Hydraulic control device of supporting leg and engineering machinery | |
| CN213628249U (en) | Pressure relief-proof large-flow oil cylinder | |
| CN204372229U (en) | A kind of fluid regeneration valve | |
| CN201245853Y (en) | Large arm oil cylinder of digging loader | |
| CN217580368U (en) | Novel valve rod regeneration structure for load sensitive valve | |
| CN210919613U (en) | Movable arm retaining valve for excavator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |