CN217421707U - Telescopic oil cylinder with high unbalance loading resistance - Google Patents
Telescopic oil cylinder with high unbalance loading resistance Download PDFInfo
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- CN217421707U CN217421707U CN202221072758.2U CN202221072758U CN217421707U CN 217421707 U CN217421707 U CN 217421707U CN 202221072758 U CN202221072758 U CN 202221072758U CN 217421707 U CN217421707 U CN 217421707U
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- cylinder barrel
- unbalance loading
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Abstract
The utility model provides a flexible hydro-cylinder of high anti unbalance loading ability, including cylinder, piston rod, the equal opening of cylinder left and right ends, and left end fixed mounting has left cylinder cap, is equipped with the piston in the cylinder, the fixed piston rod that is equipped with in piston right side, piston rod and cylinder right port between be equipped with right cylinder cap, and the piston rod right-hand member pass corresponding perforation on the right cylinder cap, wear out the right-hand member of cylinder, and link to each other with the rod cover, the piston right side is equipped with the spacer of taking into the oilhole, and the spacer cover is equipped with on the piston rod. The utility model has the advantages that: the supporting ring made of high copper powder material between the piston rod and the right cylinder cover of the original telescopic cylinder is changed into a steel back bearing, so that the unbalance loading resistance is greatly improved, and the failure caused by the unilateral extrusion deformation of the shaft seal is prevented; the overall quality of the product is improved, and various technical indexes of the product are improved.
Description
Technical Field
The utility model belongs to the technical field of the hydro-cylinder, especially, adapt to the flexible hydro-cylinder of a high anti unbalance loading ability.
Background
The truck-mounted crane is a device for lifting, revolving and hoisting goods through a hydraulic lifting and telescoping system, and is usually assembled on a truck. The equipment integrates lifting and transportation, so that the equipment is widely applied. The telescopic oil cylinder used on the lorry-mounted crane has the condition of poor unbalance loading resistance, and the shaft seal single volume is easy to deform by extrusion, so that the shaft seal single volume is ineffective, and the product quality is reduced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a flexible hydro-cylinder of high anti unbalance loading ability, it prevents that bearing seal unilateral extrusion deformation from arousing the inefficacy, improves anti unbalance loading ability, improves product quality, is particularly suitable for being used for on the lorry crane truck.
The technical scheme of the utility model is that: the telescopic oil cylinder with high unbalance loading resistance comprises a cylinder barrel, a piston and a piston rod, wherein the left end and the right end of the cylinder barrel are all open, a left cylinder cover is fixedly mounted at the left end of the cylinder barrel, the piston is arranged in the cylinder barrel, the piston rod is fixedly arranged at the right side of the piston, a right cylinder cover is arranged between the piston rod and the right end of the cylinder barrel, the right end of the piston rod penetrates through a corresponding through hole in the right cylinder cover and penetrates out of the right end of the cylinder barrel, a spacer bush with an oil inlet hole is arranged at the right side of the piston and sleeved on the piston rod, the oil inlet hole is communicated with the inner space of the piston rod, a first oil port is arranged above the cylinder barrel, a second oil port is arranged above the rod sleeve and communicated with the outer cavity of the piston rod in the cylinder barrel, the second oil port is communicated with the inner space of the piston rod, and a steel back bearing is sequentially arranged between the piston rod and the right cylinder cover from left to right, The cylinder cover comprises a step seal, a second bearing retainer ring and a dustproof ring, wherein an O-shaped ring is arranged between the right cylinder cover and the inner right end of the cylinder barrel.
Preferably, a first sealing ring is arranged between the left cylinder cover and the cylinder barrel.
Preferably, a second sealing ring and a first shaft seal retainer ring are sequentially arranged between the piston and the cylinder barrel.
Preferably, the rod sleeve is provided with a third sealing ring which is arranged on the outer side of the piston rod in a surrounding manner at one side of the cylinder barrel.
Preferably, the left end of the piston rod is provided with a through cavity communicated with the oil inlet hole and the inner space of the piston rod, and the oil inlet hole is communicated with the inner space of the piston rod through the through cavity.
The utility model has the advantages and positive effects that: by adopting the technical scheme, the supporting ring made of high copper powder material between the piston rod and the right cylinder cover of the original telescopic cylinder is changed into a steel-backed bearing, so that the unbalance loading resistance is greatly improved, and the failure caused by the unilateral extrusion deformation of the shaft seal is prevented; the overall quality of the product is improved, and various technical indexes of the product are improved.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure:
1. cylinder 2, piston 3, piston rod
4. Left cylinder cover 5, rod sleeve 6 and spacer bush
7. Right cylinder cover 8, steel back bearing 9, Stent seal
10. Second bearing retainer ring 11, dust ring 12 and O-shaped ring
13. And a third sealing ring.
Detailed Description
As shown in figure 1, the technical scheme of the utility model is a telescopic oil cylinder with high unbalance loading resistance, which comprises a cylinder barrel 1, a piston 2 and a piston rod 3, wherein the left end and the right end of the cylinder barrel 1 are both opened, a left cylinder cover 4 is fixedly arranged at the left end, the piston 2 is arranged in the cylinder barrel 1, the right side of the piston 2 is fixedly provided with the piston 3 rod, a right cylinder cover 7 is arranged between the piston rod 3 and the right end opening of the cylinder barrel 1, the right end of the piston rod 3 passes through a corresponding perforation on the right cylinder cover 7 and penetrates out of the right end of the cylinder barrel 1 and is connected with a rod sleeve 5, the right side of the piston 2 is provided with a spacer 6 with an oil inlet hole, the spacer 6 is sleeved on the piston rod 3, the oil inlet hole is communicated with the inner space of the piston rod, a first oil port is arranged above the cylinder barrel 2, a second oil port is arranged above the rod sleeve 5, the first oil port is communicated with the outer cavity of the piston rod 3 in the cylinder barrel 1, the second oil road mouth is linked together with 3 inner space of piston rod, piston rod 3 and 1 right-hand member of cylinder barrel between be equipped with right cylinder cap 7, piston rod 3 and right cylinder cap 7 between from left to right be equipped with steel backing bearing 8, steckel 9, second bearing retaining ring 10, dust ring 11 in proper order, right cylinder cap 7 and cylinder barrel 1 in be equipped with O type circle 12 between the right-hand member.
In this embodiment, a first sealing ring is arranged between the left cylinder cover 4 and the cylinder barrel 1.
In this embodiment, a second sealing ring and a first shaft seal retaining ring are sequentially arranged between the piston 2 and the cylinder barrel 1.
In this embodiment, the rod sleeve 5 is provided with a third sealing ring 13 at one side of the cylinder barrel 1 and arranged around the outside of the piston rod 3.
In this embodiment, the left end of the piston rod 3 is provided with a through cavity communicated with the oil inlet and the internal space of the piston rod 3, and the oil inlet is communicated with the internal space of the piston rod through the through cavity.
After structural optimization and adjustment, the technical indexes of the telescopic oil cylinder are as follows:
1. when the pressure is 25 MPa, no external oil leakage, no part damage and no permanent deformation phenomenon of all parts exist;
2. and (3) full-stroke inspection: 1760 mm;
3. mounting distance: 157 mm;
4. internal leakage amount: less than or equal to 0.08 mL/min;
5. cylinder diameter: phi is 63 mm;
6. rod diameter: phi 45 mm.
The working process and principle of the example are as follows: the structure is suitable for a 0543C type telescopic oil cylinder, but is not limited to the telescopic cylinder, and the supporting ring made of high copper powder material can be changed into a steel back bearing according to actual conditions, and the bearing ring is designed to be of a required size, so that all parts of the bearing ring do not have permanent deformation.
While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.
Claims (5)
1. The utility model provides a flexible hydro-cylinder of high anti unbalance loading ability which characterized in that: the cylinder comprises a cylinder barrel, a piston and a piston rod, wherein the left end and the right end of the cylinder barrel are both provided with openings, a left cylinder cover is fixedly installed at the left end of the cylinder barrel, the piston is arranged in the cylinder barrel, the piston rod is fixedly arranged at the right side of the piston, a right cylinder cover is arranged between the piston rod and the right end of the cylinder barrel, the right end of the piston rod penetrates through a corresponding through hole in the right cylinder cover and penetrates out of the right end of the cylinder barrel, and is connected with a rod sleeve, a spacer bush with an oil inlet hole is arranged at the right side of the piston and sleeved on the piston rod, the oil inlet hole is communicated with the inner space of the piston rod, a first oil port is arranged above the cylinder barrel, a second oil port is arranged above the rod sleeve, the first oil port is communicated with the outer cavity of the piston rod in the cylinder barrel, the second oil port is communicated with the inner space of the piston rod, and a steel back bearing, a steckel, a second bearing retainer ring and a second bearing are sequentially arranged between the piston rod and the right cylinder cover from left to right, And an O-shaped ring is arranged between the right cylinder cover and the inner right end of the cylinder barrel.
2. The telescopic cylinder with high unbalance loading resistance as claimed in claim 1, wherein: and a first sealing ring is arranged between the left cylinder cover and the cylinder barrel.
3. The telescopic cylinder with high unbalance loading resistance as claimed in claim 1, wherein: and a second sealing ring and a first shaft seal check ring are sequentially arranged between the piston and the cylinder.
4. The telescopic cylinder with high unbalance loading resistance as claimed in claim 1, wherein: and a third sealing ring which is annularly arranged on the outer side of the piston rod is arranged on one side of the cylinder barrel of the rod sleeve.
5. The telescopic cylinder with high unbalance loading resistance as claimed in claim 1, wherein: the left end of the piston rod is provided with a through cavity communicated with the oil inlet hole and the inner space of the piston rod, and the oil inlet hole is communicated with the inner space of the piston rod through the through cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221072758.2U CN217421707U (en) | 2022-05-07 | 2022-05-07 | Telescopic oil cylinder with high unbalance loading resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221072758.2U CN217421707U (en) | 2022-05-07 | 2022-05-07 | Telescopic oil cylinder with high unbalance loading resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217421707U true CN217421707U (en) | 2022-09-13 |
Family
ID=83184185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221072758.2U Active CN217421707U (en) | 2022-05-07 | 2022-05-07 | Telescopic oil cylinder with high unbalance loading resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217421707U (en) |
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2022
- 2022-05-07 CN CN202221072758.2U patent/CN217421707U/en active Active
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