CN212690497U - Oil cylinder structure with built-in quick cylinder - Google Patents
Oil cylinder structure with built-in quick cylinder Download PDFInfo
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- CN212690497U CN212690497U CN202020849445.8U CN202020849445U CN212690497U CN 212690497 U CN212690497 U CN 212690497U CN 202020849445 U CN202020849445 U CN 202020849445U CN 212690497 U CN212690497 U CN 212690497U
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Abstract
The utility model discloses an oil cylinder structure of built-in quick jar, including the outer cylinder body, the main piston rod that slides and sets up at the outer cylinder body inner chamber is equipped with the trough-like blind hole in the main piston rod, is equipped with the fast plunger jar in the blind hole, and its cylinder body of fast plunger jar is fixed with the main piston rod and links to each other, and its piston rod of fast plunger jar is fixed and sets up, is equipped with the oil flow way that is linked together with rear chamber business turn over hydraulic fluid port on its piston rod of fast plunger jar, still is equipped with front chamber business turn over hydraulic fluid port on the outer cylinder body, the oil cylinder structure; the piston rod of the fast forward plunger cylinder is also provided with a communication hole for avoiding air pressure generation in the plunger cylinder. The utility model discloses a plunger cylinder fast-forwards who is used for accomplishing the rapid feed motion is designed in main piston, because the plunger cylinder area ratio in the pole is smaller, plays the purpose of fast-forwarding very easily.
Description
Technical Field
The utility model relates to a hydro-cylinder structure of built-in quick jar.
Background
The pneumatic cylinder is fairly extensive in industrial production, and is more extensive in useless metal packing field and shear crushing field application, but because useless metal volume is great when useless metal packing, the pneumatic cylinder that whole packing process needs is very big, and the piston rod speed of advancing is fast not got up for production efficiency is low, has appeared on the present market and has been used for the primary and secondary jar that can fast forward, but the primary and secondary jar on the market is possible fast forward, but primary and secondary jar overall dimension is very big, takes up too much space.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the defect that exists among the prior art, provide a hydro-cylinder structure of built-in quick jar, can play the purpose of fast advancing very easily.
In order to achieve the purpose, the technical scheme of the utility model is to design an oil cylinder structure with a built-in quick cylinder, which comprises an outer cylinder body, a main piston rod arranged in an inner cavity of the outer cylinder body in a sliding manner, a groove-shaped blind hole is arranged in the main piston rod, a quick-feeding plunger cylinder is arranged in the blind hole, a cylinder body of the quick-feeding plunger cylinder is fixedly connected with the main piston rod, a piston rod of the quick-feeding plunger cylinder is fixedly arranged, an oil flow passage communicated with a rear cavity oil inlet and outlet is arranged on the piston rod of the quick-feeding plunger cylinder, a front cavity oil inlet and outlet is also arranged on the outer cylinder body; the piston rod of the fast forward plunger cylinder is also provided with a communication hole for avoiding air pressure generation in the plunger cylinder. The fast-forward plunger cylinder is arranged in the main piston, so that the occupied area of the original fast cylinder is reduced, the space required by the fast cylinder during operation is saved, and the fast-forward purpose is easily achieved due to the small area of the plunger cylinder.
The further technical scheme is that the outer cylinder body is in a circular ring shape, a flange is fixedly arranged at one end of the outer cylinder body, a piston rod of the fast-feeding plunger cylinder is fixedly connected to the flange, and a rear cavity oil inlet and outlet and an oil supplementing oil inlet and outlet are arranged on the flange.
The further technical scheme is that the oil inlet and outlet of the rear cavity are communicated with an oil flow passage of a piston rod of the fast-forward plunger cylinder through a pore passage on a flange, and the oil flow passage on the piston rod of the fast-forward plunger cylinder is in a stepped blind hole shape; the flange is provided with a plurality of round holes for communicating the inner cavity of the outer cylinder body with the oil supplementing inlet and outlet.
The further technical proposal is that a sealing ring is arranged on the inner side wall of the outer cylinder body far away from the flange; the piston rod of the fast-forward plunger cylinder comprises a circular rod body and a second stepped cylindrical end fixedly connected with the circular rod body; the flange is in a two-step cylinder shape, a large-size end of the flange is provided with a circular hole for the end head to pass through, the end head passes through the large-size end and then is fixedly connected to the large-size end of the flange through a connecting ring, a small-size end of the flange is in a circular ring shape, an oil supplementing inlet and outlet is arranged on the small-size end of the flange, and a rear cavity inlet and outlet is arranged on the large-size end of the flange. When oil is fed into the oil inlet and outlet of the back cavity, the oil enters an oil flow passage of a piston rod of the fast-forward plunger cylinder, a cylinder body of the fast-forward plunger cylinder extends out due to the pushing of the fed oil, a main piston rod also extends out (namely fast-forward is realized) due to the fixed connection between the main piston rod and the cylinder body of the fast-forward plunger cylinder, meanwhile, the oil is replenished into the flange from the oil inlet and outlet through the liquid filling valve, and the replenished oil flows to the inner cavity of the outer cylinder body through a round hole on the large-size end of the flange to push; and when the fast-forward plunger cylinder returns, oil in the piston rod of the fast-forward plunger cylinder returns through the oil inlet and outlet of the rear cavity, and oil between the oil supplementing inlet and outlet and the end surface of the main piston rod facing the flange returns through the oil supplementing inlet and outlet due to the return of the main piston rod.
The further technical proposal is that one orifice of the communicating hole is arranged on the outer surface of the circular rod body of the piston rod of the fast-forward plunger cylinder, and the other orifice is arranged on the side end surface of the circular rod body of the piston rod of the fast-forward plunger cylinder. The arrangement of the communication hole can avoid the air resistance formed between the cylinder body of the fast forward plunger cylinder and the piston rod of the fast forward plunger cylinder when the cylinder body of the fast forward plunger cylinder fast advances to influence the fast forward or damage the cylinder body of the fast forward plunger cylinder or the piston rod of the fast forward plunger cylinder.
The utility model has the advantages and the beneficial effects that: the fast-forward plunger cylinder is arranged in the main piston, so that the occupied area of the original fast cylinder is reduced, the space required by the fast cylinder during operation is saved, and the fast-forward purpose is easily achieved due to the small area of the plunger cylinder. The arrangement of the communication hole can avoid the air resistance formed between the cylinder body of the fast forward plunger cylinder and the piston rod of the fast forward plunger cylinder when the cylinder body of the fast forward plunger cylinder fast advances to influence the fast forward or damage the cylinder body of the fast forward plunger cylinder or the piston rod of the fast forward plunger cylinder. A fast forward plunger cylinder for completing fast feed motion is designed in the main piston, and the purpose of fast forward is easily achieved due to the fact that the area of the plunger cylinder in the rod is small.
Drawings
Fig. 1 is a schematic diagram of an oil cylinder structure of a built-in fast cylinder of the present invention;
FIG. 2 is an enlarged schematic view of the left end portion of FIG. 1;
fig. 3 is an exploded view of the present invention;
FIG. 4 is a half sectional view of FIG. 3 with the outer cylinder removed;
fig. 5 is a schematic view of a flange according to the present invention;
fig. 6 is a schematic view of the outer cylinder body of the present invention.
In the figure: 1. an outer cylinder body; 2. an inner cavity; 3. a main piston rod; 4. a cylinder body of the fast-advancing plunger cylinder; 5. a piston rod of the fast-advancing plunger cylinder; 6. the rear cavity is provided with an oil inlet and an oil outlet; 7. an oil flow passage; 8. the front cavity is provided with an oil inlet and an oil outlet; 9. the oil supplementing inlet and outlet; 10. a communicating hole; 11. a flange; 12. a circular hole; 13. a seal ring; 14. a tip; 15. a circular hole; 16. and (7) connecting rings.
Detailed Description
The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
As shown in fig. 1 to 6, the utility model relates to an oil cylinder structure with a built-in fast cylinder, which comprises an outer cylinder body 1, a main piston rod 3 slidably arranged in an inner cavity 2 of the outer cylinder body 1, a groove-shaped blind hole arranged in the main piston rod 3, a fast-feeding plunger cylinder arranged in the blind hole, a cylinder body 4 of the fast-feeding plunger cylinder fixedly connected with the main piston rod 3, a piston rod 5 of the fast-feeding plunger cylinder fixedly arranged, an oil flow passage 7 communicated with a rear cavity oil inlet/outlet 6 arranged on the piston rod 5 of the fast-feeding plunger cylinder, a front cavity oil inlet/outlet 8 arranged on the outer cylinder body 1, and an oil supplementing oil inlet/outlet 9 arranged; the fast forward plunger cylinder is further provided with a communication hole 10 for preventing generation of air pressure in the plunger cylinder at the piston rod 5. The outer cylinder body 1 is in a circular ring shape, one end of the outer cylinder body 1 is fixedly provided with a flange 11, a piston rod 5 of the fast-forward plunger cylinder is fixedly connected to the flange 11, and the flange 11 is provided with a rear cavity oil inlet/outlet 6 and an oil supplementing oil inlet/outlet 9. The oil inlet and outlet 6 of the rear cavity is communicated with an oil flow passage 7 of a piston rod 5 of the fast-forward plunger cylinder through a pore passage on a flange 11, and the oil flow passage 7 on the piston rod 5 of the fast-forward plunger cylinder is in a stepped blind hole shape; the flange 11 is provided with a plurality of round holes 12 for communicating the inner cavity 2 of the outer cylinder body 1 with the oil supplementing inlet/outlet 9. A sealing ring 13 is arranged on the inner side wall of the outer cylinder body 1 far away from the flange 11; the piston rod 5 of the fast-forward plunger cylinder comprises a circular rod body and a second stepped cylindrical end 14 fixedly connected with the circular rod body; the flange 11 is in a two-step cylindrical shape, a large-size end of the flange 11 is provided with a circular hole 15 through which an end 14 penetrates, the end 14 penetrates through the large-size end and then is fixedly connected to the large-size end of the flange 11 through a connecting ring 16, a small-size end of the flange 11 is in a circular ring shape, an oil supplementing inlet/outlet port 9 is formed in the small-size end of the flange 11, and a rear cavity inlet/outlet port 6 is formed in the large-size end of the flange 11. One orifice of the communication hole 10 is provided on the outer surface of the annular rod body of the piston rod 5 of the fast forward ram cylinder, and the other orifice is provided on the side end surface of the annular rod body of the piston rod 5 of the fast forward ram cylinder.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. An oil cylinder structure with a built-in quick cylinder is characterized by comprising an outer cylinder body, a main piston rod arranged in an inner cavity of the outer cylinder body in a sliding mode, a groove-shaped blind hole is formed in the main piston rod, a quick-feeding plunger cylinder is arranged in the blind hole, a cylinder body of the quick-feeding plunger cylinder is fixedly connected with the main piston rod, a piston rod of the quick-feeding plunger cylinder is fixedly arranged, an oil flow passage communicated with a rear cavity oil inlet and outlet is formed in the piston rod of the quick-feeding plunger cylinder, a front cavity oil inlet and outlet is further formed in the outer cylinder body, and an oil supplementing oil inlet and; the piston rod of the fast forward plunger cylinder is also provided with a communication hole for avoiding air pressure generation in the plunger cylinder.
2. The oil cylinder structure of a built-in fast cylinder according to claim 1, wherein the outer cylinder body is circular, a flange is fixedly arranged at one end of the outer cylinder body, a piston rod of the fast-feeding plunger cylinder is fixedly connected to the flange, and a rear cavity oil inlet and outlet and an oil supplementing oil inlet and outlet are arranged on the flange.
3. The oil cylinder structure of a built-in fast cylinder according to claim 2, characterized in that the oil inlet and outlet of the rear cavity are communicated with the oil flow passage of the piston rod of the fast-forward plunger cylinder through a pore passage on the flange, and the oil flow passage on the piston rod of the fast-forward plunger cylinder is in a stepped blind hole shape; the flange is provided with a plurality of round holes for communicating the inner cavity of the outer cylinder body with the oil supplementing inlet and outlet.
4. The cylinder structure of a built-in quick cylinder according to claim 3, wherein a sealing ring is arranged on the inner side wall of the outer cylinder body away from the flange; the piston rod of the fast-forward plunger cylinder comprises a circular rod body and a second stepped cylindrical end fixedly connected with the circular rod body; the flange is in a two-step cylinder shape, a large-size end of the flange is provided with a circular hole for the end head to pass through, the end head passes through the large-size end and then is fixedly connected to the large-size end of the flange through a connecting ring, a small-size end of the flange is in a circular ring shape, an oil supplementing inlet and outlet is arranged on the small-size end of the flange, and a rear cavity inlet and outlet is arranged on the large-size end of the flange.
5. The cylinder structure of a built-in quick cylinder according to claim 1 or 4, wherein one orifice of the communication hole is provided on an outer surface of the annular rod body of the piston rod of the quick-forward ram cylinder, and the other orifice is provided on a side end surface of the annular rod body of the piston rod of the quick-forward ram cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849445.8U CN212690497U (en) | 2020-05-20 | 2020-05-20 | Oil cylinder structure with built-in quick cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020849445.8U CN212690497U (en) | 2020-05-20 | 2020-05-20 | Oil cylinder structure with built-in quick cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212690497U true CN212690497U (en) | 2021-03-12 |
Family
ID=74887459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020849445.8U Active CN212690497U (en) | 2020-05-20 | 2020-05-20 | Oil cylinder structure with built-in quick cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212690497U (en) |
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2020
- 2020-05-20 CN CN202020849445.8U patent/CN212690497U/en active Active
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