CN212519887U - Paddy field leveling machine - Google Patents
Paddy field leveling machine Download PDFInfo
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- CN212519887U CN212519887U CN202020489181.XU CN202020489181U CN212519887U CN 212519887 U CN212519887 U CN 212519887U CN 202020489181 U CN202020489181 U CN 202020489181U CN 212519887 U CN212519887 U CN 212519887U
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- hydraulic cylinder
- paddy field
- wall
- hydraulic cylinders
- rubber film
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Abstract
A paddy field leveling machine. Relates to the technical field of agricultural machinery. The hydraulic cylinder protection device comprises a leveling plate arranged at the rear part of a power vehicle body through a support, wherein extension leveling plates are hinged to two ends of the leveling plate, the leveling plate and the extension leveling plates are driven by hydraulic cylinders, the tail parts of the hydraulic cylinders are provided with first mounting seats through first connecting rods, the front parts of the hydraulic cylinders are provided with second mounting seats through second connecting rods, hydraulic cylinder protection devices are further arranged on the hydraulic cylinders and comprise pressing strips, the pressing strips are arranged in a surrounding mode respectively on the outer walls of the hydraulic cylinders and the outer walls of the second connecting rods, rubber films are pressed between the pressing strips in a pressing mode, and the rubber films wrap push rods of the hydraulic cylinders. The utility model discloses have compact structure on the whole, can increase of service life's characteristics.
Description
Technical Field
The utility model relates to an agricultural machine technical field, concretely relates to paddy field evener.
Background
The modern agriculture is based on the premise of popularization of agricultural mechanization, and the actual agricultural production in China still has intensive manual investment, and particularly when paddy fields are leveled in the rice production process, the workload of manual leveling is huge, and the paddy fields are generally operated by adopting a paddy field leveling machine. The drive of current paddy field evener through a plurality of pneumatic cylinders can realize the folding of flattening board, receive and release, when not influencing the flattening effect, avoided the automobile body walking when subaerial not flattening, the flattening board can be along with the automobile body slope, improves the flattening effect, however, at the flattening in-process, the pneumatic cylinder can submerge in the paddy field, and debris in the paddy field can pollute the pneumatic cylinder, influence the shrink of pneumatic cylinder, damage the pneumatic cylinder even, reduced the life of evener.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model provides a paddy field leveling machine which has compact structure and can prolong the service life.
The utility model discloses a following technical scheme realizes: a paddy field leveling machine comprises leveling plates arranged at the rear part of a power vehicle body through a support, wherein both ends of each leveling plate are hinged with an extension leveling plate, the leveling plates and a pair of extension leveling plates are driven by hydraulic cylinders, the tail parts of the hydraulic cylinders are provided with first mounting seats through first connecting rods, the front parts of the hydraulic cylinders are provided with second mounting seats through second connecting rods, and hydraulic cylinder protection devices are further arranged on the hydraulic cylinders,
the hydraulic cylinder protection device comprises pressing strips, a pair of pressing strips are respectively arranged on the outer wall of the hydraulic cylinder and the outer wall of the second connecting rod in a surrounding mode, a rubber film is pressed between the pair of pressing strips, and the rubber film wraps a push rod of the hydraulic cylinder.
The pneumatic control device is characterized in that an air pressure adjusting cavity is further arranged on the outer wall of the hydraulic cylinder, the bottom of the air pressure adjusting cavity is communicated with the rubber film through an air pipe, a piston is arranged in the air pressure adjusting cavity, and an air hole is formed in the top of the air pressure adjusting cavity.
The rubber film is arranged between the L-shaped pressing strip and the inverted L-shaped pressing strip, and the L-shaped pressing strip and the inverted L-shaped pressing strip are locked and fastened through bolts and nuts.
The hydraulic cylinder is further sleeved with a telescopic pipe, one end of the telescopic pipe is welded to the outer wall of the hydraulic cylinder, and the other end of the telescopic pipe is welded to the outer wall of the second connecting rod.
The rubber film wraps the extension tube.
Compared with the prior art, the utility model discloses at the during operation, the rubber membrane forms inclosed cavity under the cooperation of a pair of layering, and is full of the air in the cavity, and the cavity is in the inflation state for under the push rod of pneumatic cylinder is in the protection of rubber membrane all the time, avoided the debris pollution in the paddy field, cause the pneumatic cylinder to damage, pneumatic cylinder protection device compact structure has effectively prolonged the holistic life of pneumatic cylinder and evener.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a hydraulic cylinder protector;
in the figure: 1. a support; 2. a screed plate; 3. extending the screed; 4. a hydraulic cylinder; 5. a first connecting rod; 6. a first mounting seat; 7. a second connecting rod; 8. a second mounting seat; 9. a rubber film; 10. an air tube; 11. a piston; 12. air holes; 13. an L-shaped layering; 14. an inverted L-shaped layering; 15. a bolt; 16. a nut; 17. a telescopic pipe; 18. a pneumatic pressure regulating cavity.
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.
As shown in fig. 1-2, a paddy field leveling machine includes a leveling plate 2 installed at the rear of a power car body through a support 1, extension leveling plates 32 are hinged to both ends of the leveling plate 2, the leveling plate 2 and a pair of the extension leveling plates 32 are driven by hydraulic cylinders 4, a first mounting seat 6 is provided at the tail of the hydraulic cylinder 4 through a first connecting rod 5, a second mounting seat 8 is provided at the front of the hydraulic cylinder 4 through a second connecting rod 7, the hydraulic cylinders 4 include at least three, one of the hydraulic cylinders is used for driving the leveling plate 2 to ascend and descend, the other two hydraulic cylinders are respectively used for driving a pair of the extension leveling plates 32 to drive one end of the extension leveling plate 32 to rotate around the hinge point of the leveling plate 2 and the extension leveling plate 32, and hydraulic cylinder 4 protection devices are further provided on the hydraulic cylinders 4,
the protection device of the hydraulic cylinder 4 comprises pressing strips, a pair of pressing strips are respectively arranged on the outer wall of the hydraulic cylinder 4 and the outer wall of the second connecting rod 7 in a surrounding mode, a rubber film 9 is pressed between the pair of pressing strips, and the rubber film 9 wraps a push rod of the hydraulic cylinder 4. That is to say, rubber membrane 9 forms inclosed cavity under the cooperation of a pair of layering, and is full of the air in the cavity for the cavity is in the inflation state, and like this, pneumatic cylinder 4's push rod has been avoided the debris pollution in the paddy field under rubber membrane 9's protection all the time, causes pneumatic cylinder 4 to damage, and pneumatic cylinder 4 protection device compact structure has effectively prolonged pneumatic cylinder 4 and the holistic life of evener.
An air pressure adjusting cavity 18 is further formed in the outer wall of the hydraulic cylinder 4, the bottom of the air pressure adjusting cavity 18 is communicated with the rubber membrane 9 through an air pipe 10, a piston 11 is arranged in the air pressure adjusting cavity 18, and an air hole 12 is formed in the top of the air pressure adjusting cavity 18. The air charging amount in the cavity formed by the rubber membrane 9 ensures that the rubber membrane 9 is in an expansion state along with the extension and recovery of the push rod of the hydraulic cylinder 4, when the push rod of the hydraulic cylinder 4 is recovered, the volume of the cavity is reduced, the air pressure in the cavity is increased, excessive air is conducted into the air pressure adjusting cavity 18 through the air pipe 10, the piston 11 is pushed to move towards the top of the air pressure adjusting cavity 18, the volume is enlarged, the air pressure in the cavity is reduced, and the burst of the rubber membrane 9 is avoided; the air hole 12 is used for exhausting and sucking air, and ensures the reliable movement of the piston 11; further, the weight of the piston 11 is adjusted to set the threshold value for air pressure adjustment, thereby ensuring that the rubber film 9 is in an inflated state while preventing burst.
The L-shaped pressing strip 13 and the inverted L-shaped pressing strip 1413 are included in the pressing strip, the L-shaped pressing strip 13 is fixedly connected with the outer wall of the hydraulic cylinder 4 or the outer wall of the second connecting rod 7, the inverted L-shaped pressing strip 1413 is pressed with the L-shaped pressing strip 13, the outer edge of the rubber film 9 is arranged between the L-shaped pressing strip 13 and the inverted L-shaped pressing strip 1413, and the L-shaped pressing strip 13 and the inverted L-shaped pressing strip 1413 are locked and fastened through bolts 15 and nuts 16. The L-shaped pressing strip 13 and the inverted L-shaped pressing strip 1413 which are meshed are arranged, so that the contact area between the outer edge of the rubber membrane 9 and the pressing strips is increased, and the sealing reliability of the outer edge of the rubber membrane 9 is ensured.
The hydraulic cylinder 4 is further sleeved with a telescopic pipe 17, one end of the telescopic pipe 17 is welded to the outer wall of the hydraulic cylinder 4, and the other end of the telescopic pipe 17 is welded to the outer wall of the second connecting rod 7. The telescopic pipe 17 is arranged to prevent the hydraulic cylinder 4 from being in a reliable working state within a certain time after the rubber film 9 is accidentally broken.
The rubber membrane 9 wraps the telescopic tube 17. That is to say, the rubber film 9 is outside, the extension tube 17 is inside, if the extension tube 17 is outside, the fold of the extension tube 17 may be stuck with small wood thorns, etc., the extension tube 17 may be damaged in the process of extension and retraction of the extension tube 17, and the outer surface of the expanded rubber film 9 is round and smooth, so that sundries are not remained, and the service life of the leveling machine is prolonged.
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 (5)
1. Paddy field evener includes the flattening board of installing at power automobile body rear portion through the support, the both ends of flattening board all articulate there is the extension flattening board, the flattening board is with a pair of the extension flattening board all passes through the pneumatic cylinder drive, its characterized in that: the tail part of the hydraulic cylinder is provided with a first mounting seat through a first connecting rod, the front part of the hydraulic cylinder is provided with a second mounting seat through a second connecting rod, the hydraulic cylinder is also provided with a hydraulic cylinder protecting device,
the hydraulic cylinder protection device comprises pressing strips, a pair of pressing strips are respectively arranged on the outer wall of the hydraulic cylinder and the outer wall of the second connecting rod in a surrounding mode, a rubber film is pressed between the pair of pressing strips, and the rubber film wraps a push rod of the hydraulic cylinder.
2. The paddy field leveling machine of claim 1, wherein: the pneumatic control device is characterized in that an air pressure adjusting cavity is further arranged on the outer wall of the hydraulic cylinder, the bottom of the air pressure adjusting cavity is communicated with the rubber film through an air pipe, a piston is arranged in the air pressure adjusting cavity, and an air hole is formed in the top of the air pressure adjusting cavity.
3. The paddy field leveling machine of claim 1, wherein: the rubber film is arranged between the L-shaped pressing strip and the inverted L-shaped pressing strip, and the L-shaped pressing strip and the inverted L-shaped pressing strip are locked and fastened through bolts and nuts.
4. The paddy field leveling machine of claim 1, wherein: the hydraulic cylinder is further sleeved with a telescopic pipe, one end of the telescopic pipe is welded to the outer wall of the hydraulic cylinder, and the other end of the telescopic pipe is welded to the outer wall of the second connecting rod.
5. The paddy field leveling machine of claim 4, wherein: the rubber film wraps the extension tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020489181.XU CN212519887U (en) | 2020-04-03 | 2020-04-03 | Paddy field leveling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020489181.XU CN212519887U (en) | 2020-04-03 | 2020-04-03 | Paddy field leveling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212519887U true CN212519887U (en) | 2021-02-12 |
Family
ID=74523105
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020489181.XU Active CN212519887U (en) | 2020-04-03 | 2020-04-03 | Paddy field leveling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212519887U (en) |
-
2020
- 2020-04-03 CN CN202020489181.XU patent/CN212519887U/en active Active
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