CN213270521U - Heavy-load hydraulic cylinder - Google Patents
Heavy-load hydraulic cylinder Download PDFInfo
- Publication number
- CN213270521U CN213270521U CN202021590211.2U CN202021590211U CN213270521U CN 213270521 U CN213270521 U CN 213270521U CN 202021590211 U CN202021590211 U CN 202021590211U CN 213270521 U CN213270521 U CN 213270521U
- Authority
- CN
- China
- Prior art keywords
- sliding block
- cylinder
- rectangular groove
- rectangular
- baffle
- 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
Landscapes
- Actuator (AREA)
Abstract
The utility model provides a heavy-duty hydraulic cylinder, which relates to the technical field of oil cylinders and comprises a cylinder body, wherein a buffer device is arranged at the bottom of the cylinder and comprises a rectangular groove, a vertical oil outlet channel is also arranged on the bottom of the cylinder and is perpendicular to the rectangular groove; the sliding block is arranged in the rectangular groove, the sliding block is a rectangular sliding block and can slide back and forth along the rectangular groove, one end of the sliding block extends out of the cylinder bottom and extends into the cylinder body, a seal is formed between the sliding block and the cylinder bottom, a first limiting block is further arranged on the sliding block, and an oil way is arranged in the middle of the sliding block; an extension spring is further arranged in the rectangular groove, a baffle is connected to the tail of the extension spring, and the extension spring is welded and fixed with the baffle; the baffle middle part welded fastening has the circle cover, be provided with the internal thread in the circle cover, wear to be equipped with the screw rod in the circle cover, the screw rod afterbody is provided with smooth portion, it is fixed through the bearing between smooth portion and the cylinder bottom.
Description
Technical Field
The utility model relates to a hydro-cylinder technical field, concretely relates to heavy load type pneumatic cylinder.
Background
With the continuous development of society and the continuous progress of industry, the hydraulic cylinder is one of hydraulic components which convert hydraulic energy into mechanical energy and do reciprocating motion, has wide application in industry, and the heavy-load hydraulic cylinder in the hydraulic cylinder has stronger working force and has excellent performance in some heavy industries.
The heavy-load hydraulic cylinder in the prior art has the advantages that the internal bearing pressure is large, and the internal piston rod is easily damaged or even damaged in the cylinder body under the condition that a buffer device is lacked, so that the damage cannot be repaired.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a novel heavy load type hydraulic cylinder can solve the technical problem in the background art.
The utility model discloses a following technical scheme realizes: a heavy-load hydraulic cylinder comprises a cylinder body, wherein a piston rod penetrates through the middle of the cylinder body, the end part of the piston rod is connected with a lifting ring, the tail part of the piston rod is provided with a piston, the cylinder bottom is provided with a buffer device, the buffer device comprises a first transverse groove, the first transverse groove is a rectangular groove, the cylinder bottom is also provided with a vertical oil outlet channel, and the oil outlet channel is perpendicular to the rectangular groove;
the sliding block is arranged in the rectangular groove, the sliding block is a rectangular sliding block and can slide back and forth along the rectangular groove, one end of the sliding block extends out of the cylinder bottom and extends into the cylinder body, a seal is formed between the sliding block and the cylinder bottom, a first limiting block is further arranged on the sliding block, and an oil way is arranged in the middle of the sliding block;
the rectangular groove is internally provided with a telescopic spring, the tail part of the telescopic spring is connected with a baffle plate, the baffle plate is a rectangular baffle plate and is tightly attached to the groove wall of the rectangular groove, and the telescopic spring is welded and fixed with the baffle plate;
the baffle middle part welded fastening has the circle cover, be provided with the internal thread in the circle cover, wear to be equipped with the screw rod in the circle cover, the screw rod afterbody is provided with smooth portion, it is fixed through the bearing between smooth portion and the cylinder bottom.
Preferably, a second limiting block is arranged on the groove wall of the rectangular groove and is arranged at the front end of the baffle plate and the rear end of the oil outlet channel.
Preferably, the tail part of the screw rod is provided with a hand wheel.
Compared with the prior art, the utility model, set up buffer at the cylinder bottom, this buffer can realize the flow reduction of hydraulic oil when the piston rod moves to the cylinder bottom position, and then realizes the piston rod and moves the buffering effect to the afterbody.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1;
in the figure: 1. a piston rod; 2. a cylinder body; 3. a piston; 4. a rectangular groove; 5. an oil outlet channel; 6. a slider; 61. an oil path; 62. a first stopper; 7. a baffle plate; 8. a tension spring; 9. a round sleeve; 10. a screw; 101. a smooth portion; 11. a handwheel.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
The heavy-load hydraulic cylinder shown in fig. 1 and 2 comprises a cylinder body 2, wherein a piston rod 1 penetrates through the middle of the cylinder body 2, the end part of the piston rod 1 is connected with a lifting ring, a piston 3 is arranged at the tail part of the piston rod 1, a buffer device is arranged at the bottom of the cylinder, the buffer device comprises a first transverse groove, the first transverse groove is a rectangular groove 4, a vertical oil outlet channel 5 is further arranged at the bottom of the cylinder, and the oil outlet channel 5 is perpendicular to the rectangular groove 4;
the sliding block 6 is arranged in the rectangular groove 4, the sliding block 6 is a rectangular sliding block 6 and can slide back and forth along the rectangular groove 4, one end of the sliding block 6 extends out of the cylinder bottom and extends into the cylinder body 2, a seal is formed between the sliding block 6 and the cylinder bottom, a first limiting block 62 is further arranged on the sliding block 6, and an oil path 61 is arranged in the middle of the sliding block 6;
an extension spring 8 is further arranged in the rectangular groove 4, the tail part of the extension spring 8 is connected with a baffle 7, the baffle 7 is a rectangular baffle 7 and is tightly attached to the groove wall of the rectangular groove 4, and the extension spring 8 is welded and fixed with the baffle 7;
the middle of the baffle 7 is fixedly welded with a round sleeve 9, an internal thread is arranged in the round sleeve 9, a screw 10 penetrates through the round sleeve 9, a smooth part 101 is arranged at the tail part of the screw 10, and the smooth part 101 and the cylinder bottom are fixed through a bearing.
The principle that this application realized the hydro-cylinder buffering is, when piston rod 1 downstream, hydraulic oil enters into and flows out cylinder body 2 behind the vertical oil channel 5 through slider 6's oil circuit 61, move to the bottom at piston rod 1, when the pressure of hydraulic oil reaches a definite value, slider 6 can be by extrusion motion to inside the rectangular groove 4, slider 6 blocks out oil channel 5 this moment, the flow of hydraulic oil reduces this moment, slider 6 and piston rod 1's motion mean velocity all reduces, play the cushioning motion, and simultaneously, advance and drive the back-and-forth movement of baffle 7 through rotating screw rod 10, and then drive expanding spring 8's back-and-forth movement, and then can play adjusting spring by extrusion stroke, play the size that adjusting slider 6 can bear pressure.
Furthermore, a second limiting block is arranged on the groove wall of the rectangular groove 4 and is arranged at the front end of the baffle 7 and the rear end of the oil outlet channel 5. The second limiting block plays a role in limiting the baffle 7.
Further, the tail of the screw rod 10 is provided with a hand wheel 11. The hand wheel 11 drives the screw rod 10 to rotate, and further drives the round sleeve 9 sleeved in the screw rod 10 to move.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (3)
1. The utility model provides a heavy-duty type pneumatic cylinder, includes the cylinder body, its characterized in that: a piston rod penetrates through the middle of the cylinder body, the end part of the piston rod is connected with a lifting ring, a piston is arranged at the tail part of the piston rod, a buffer device is arranged at the bottom of the cylinder, the buffer device comprises a first transverse groove, the first transverse groove is a rectangular groove, a vertical oil outlet channel is further arranged at the bottom of the cylinder, and the oil outlet channel is perpendicular to the rectangular groove;
the sliding block is arranged in the rectangular groove, the sliding block is a rectangular sliding block and can slide back and forth along the rectangular groove, one end of the sliding block extends out of the cylinder bottom and extends into the cylinder body, a seal is formed between the sliding block and the cylinder bottom, a first limiting block is further arranged on the sliding block, and an oil way is arranged in the middle of the sliding block;
the rectangular groove is internally provided with a telescopic spring, the tail part of the telescopic spring is connected with a baffle plate, the baffle plate is a rectangular baffle plate and is tightly attached to the groove wall of the rectangular groove, and the telescopic spring is welded and fixed with the baffle plate;
the baffle middle part welded fastening has the circle cover, be provided with the internal thread in the circle cover, wear to be equipped with the screw rod in the circle cover, the screw rod afterbody is provided with smooth portion, it is fixed through the bearing between smooth portion and the cylinder bottom.
2. A heavy-duty hydraulic cylinder as set forth in claim 1, wherein: the rectangular groove wall is provided with a second limiting block, and the second limiting block is arranged at the front end of the baffle and at the rear end of the oil outlet channel.
3. A heavy-duty hydraulic cylinder as set forth in claim 1, wherein: and a hand wheel is arranged at the tail part of the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590211.2U CN213270521U (en) | 2020-08-04 | 2020-08-04 | Heavy-load hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021590211.2U CN213270521U (en) | 2020-08-04 | 2020-08-04 | Heavy-load hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213270521U true CN213270521U (en) | 2021-05-25 |
Family
ID=75970073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021590211.2U Active CN213270521U (en) | 2020-08-04 | 2020-08-04 | Heavy-load hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213270521U (en) |
-
2020
- 2020-08-04 CN CN202021590211.2U patent/CN213270521U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201062601Y (en) | Two-stage dashpot plunger type cylinder | |
| CN102345652A (en) | Buffering type cylinder | |
| CN210978051U (en) | Energy-saving two-cylinder high-pressure plunger hydraulic cylinder | |
| CN201412411Y (en) | Buffer cylinder | |
| CN213270521U (en) | Heavy-load hydraulic cylinder | |
| CN201358978Y (en) | Buffering mechanism for piston buffer cavity type hydraulic actuating cylinder | |
| CN207921011U (en) | A kind of floating type unidirectional double-rod cylinder | |
| CN202690578U (en) | Rapid oil cylinder | |
| CN205715062U (en) | A kind of have the single-acting cylinder of return reset gas spring in cylinder | |
| CN201925392U (en) | Novel oil-gas shock absorber | |
| CN204436946U (en) | The permanent throttling buffering mechanism of a kind of oil hydraulic cylinder | |
| CN206429479U (en) | A kind of magnetic coupling formula Rodless cylinder | |
| CN201129332Y (en) | Boosting hydraulic cylinder | |
| CN207278878U (en) | A kind of variable cross-section anti-extrusion sealing ring and a kind of hydraulic device | |
| CN201771889U (en) | Novel hydraulic cylinder with variable throttling buffer structure | |
| CN202251956U (en) | Floating gap seal with high speed, high frequency and high abrasion resistance | |
| CN213684766U (en) | Oil cylinder with buffer structure | |
| CN202441669U (en) | Pneumatic/hydraulic cylinder with buffering mechanism | |
| CN202756342U (en) | Long-stroke quick hydraulic cylinder buffer device | |
| CN113446285A (en) | Two-head belt buffer oil cylinder | |
| CN203906437U (en) | Single-action hinged inner rod type plunger cylinder | |
| CN208935063U (en) | A kind of hydraulic cylinder buffer structure | |
| CN202484182U (en) | Guider component for shock absorber | |
| CN203321937U (en) | Buffer oil cylinder | |
| CN206860584U (en) | A kind of spring cylinder |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |