CN218509855U - Compact type large-torque swing hydraulic cylinder - Google Patents
Compact type large-torque swing hydraulic cylinder Download PDFInfo
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- CN218509855U CN218509855U CN202223091336.2U CN202223091336U CN218509855U CN 218509855 U CN218509855 U CN 218509855U CN 202223091336 U CN202223091336 U CN 202223091336U CN 218509855 U CN218509855 U CN 218509855U
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Abstract
The utility model provides a big moment of torsion swing hydraulic cylinder of compact, including the hydro-cylinder barrel, interior axle subassembly, the ring gear, slip intermediate sleeve, the end cover, lock nut, left side barrel mounting and right barrel mounting, the upper end fixed mounting of hydro-cylinder barrel has balanced valve, balanced valve communicates with the hydro-cylinder barrel mutually through left oilhole and right oilhole respectively, interior axle unit mount is in the inside of hydro-cylinder barrel, interior axle subassembly includes center pin and axle head cover, the center pin includes first shaft section, the second shaft section, the third shaft section, the fourth shaft section, the axle head cover includes axle head portion and swivel sleeve, the center pin passes through fourth shaft section and axle head portion fixed connection with the axle head cover. The integral structure of the oil cylinder is compact, the torque is improved by adjusting the internal spiral teeth on the basis of unchangeable installation size, and the use requirement is met.
Description
Technical Field
The utility model relates to a swing hydraulic cylinder technical field especially relates to a big moment of torsion swing hydraulic cylinder of compact.
Background
A drill jumbo (also called drilling jumbo) is a drilling device for tunnel and underground engineering by adopting a drilling and blasting method, and can move and support a plurality of rock drills to drill holes simultaneously. When swing hydraulic cylinder is applied to the rock drilling trolley, because the operating mode is abominable, can often appear transshipping phenomenon in the traditional swing hydraulic cylinder use and lead to the output torque not enough. In order to deal with the new application demand of drill jumbo to big moment of torsion swing hydraulic cylinder, the utility model provides a compact big moment of torsion swing hydraulic cylinder.
SUMMERY OF THE UTILITY MODEL
The utility model discloses when being applied to rock drilling jumbo to traditional swing hydraulic cylinder, lead to the not enough technical problem of output torque because of the overload phenomenon, provide a big moment of torsion swing hydraulic cylinder of compact, the overall structure of this hydro-cylinder is compact, realizes the promotion of moment of torsion through adjusting inside helical tooth on the unchangeable basis of mounting dimension, satisfies the user demand.
Therefore, the technical scheme of the utility model is that, a compact big moment of torsion swing hydraulic cylinder, including the hydro-cylinder barrel, interior axle subassembly, the ring gear, slip middle cover, the end cover, lock nut, left barrel mounting and right barrel mounting, the upper end fixed mounting of hydro-cylinder barrel has the balanced valve, the balanced valve communicates with the hydro-cylinder barrel through left oilhole and right oilhole respectively, interior axle subassembly is installed in the inside of hydro-cylinder barrel, interior axle subassembly includes center pin and axle head cover, the center pin includes first axle section, second axle section, third axle section, fourth axle section, the axle head cover includes axle head portion and swivel mount, center pin and axle head cover pass through fourth axle section and axle head portion fixed connection;
a shaft end sleeve of the inner shaft assembly is rotationally connected with an oil cylinder body and a right cylinder body fixing part, the oil cylinder body is fixedly connected with the right cylinder body fixing part, an inner shaft outer dustproof ring is arranged between the shaft end part and the right cylinder body fixing part, an inner shaft main sealing ring and a right guide ring are arranged between a rotating sleeve and the inner ring surface of the oil cylinder body, a first shaft section of a central shaft is fixedly connected with an end cover through a locking nut, a locking nut outer dustproof ring is arranged between the locking nut and the end cover, a locking nut inner dustproof ring is arranged between the locking nut and the first shaft section, the end cover is rotationally connected with the oil cylinder body and a left cylinder body fixing part, the oil cylinder body is fixedly connected with a left cylinder body fixing part, an end cover outer dustproof ring is arranged between the end cover and the left cylinder body fixing part, and an end cover outer dustproof ring and an end cover guide ring are arranged between the right end of the end cover and the inner ring surface of the oil cylinder body;
the sliding middle sleeve is arranged between the central shaft and the oil cylinder barrel body, the left end of the sliding middle sleeve is respectively connected with the central shaft and the oil cylinder barrel body in a sliding mode, the sliding middle sleeve comprises a middle sleeve inner part and a middle sleeve outer part, the middle sleeve inner part and the middle sleeve outer part are fixedly connected through threads, a middle sleeve sealing ring is arranged between the middle sleeve inner part and the middle sleeve outer part, a sliding sleeve outer sealing ring and a sliding sleeve outer guide ring are arranged between the middle sleeve inner part and the oil cylinder barrel body, a sliding sleeve inner sealing ring and a sliding sleeve inner guide ring are arranged between the middle sleeve inner part and the second shaft section of the central shaft, the number of the sliding sleeve inner sealing rings is 2, the sliding sleeve inner sealing rings are located on two sides of the sliding sleeve outer guide ring, an inner shaft helical tooth is arranged on the third shaft section of the central shaft, a middle sleeve inner helical tooth is arranged on the surface of the inner ring at the right end of the middle sleeve inner part, a middle sleeve outer helical tooth is arranged on the outer ring surface of the right end of the middle sleeve inner part, the inner ring is arranged between the middle sleeve inner part and the oil cylinder barrel body, the inner ring is fixedly welded with the inner ring and the helical tooth, and the helical tooth is arranged on the inner ring surface of the middle sleeve inner ring.
Preferably, the first shaft section, the second shaft section, the third shaft section and the fourth shaft section are of an integrally formed structure.
Preferably, a right thrust washer is arranged between the end part of the shaft and the cylinder body and between the end part of the shaft and the right cylinder body fixing part.
Preferably, the inner shaft main sealing ring is positioned on the right side of the right guide ring, and the number of the right guide ring is 2.
Preferably, a left thrust washer is arranged between the end cover and the cylinder body and between the end cover and the left cylinder body fixing piece.
Preferably, the end cover outer sealing ring is located on the left side of the end cover guide ring.
Preferably, the number of the sliding sleeve outer sealing rings is 2, and the sliding sleeve outer sealing rings are positioned on the right side of the sliding sleeve outer guide ring.
Preferably, the inclination angle of the helical teeth of the inner helical teeth of the intermediate sleeve and the outer helical teeth of the intermediate sleeve is 25 degrees.
The beneficial effects of the utility model are that, this swing hydraulic cylinder is in order to deal with the new application demand of drill jumbo to big moment of torsion swing hydraulic cylinder, realize the promotion of moment of torsion through adjusting inside helical tooth on the unchangeable basis of mounting dimension, be 25 +/-5 degrees by traditional 45 degrees adjustment with the inclination of helical tooth, swing hydraulic cylinder's moment of torsion has been promoted, design through a plurality of guide rings, guarantee swing hydraulic cylinder operation's straightness accuracy, the life-span of product has been improved, the ability of swing hydraulic cylinder to undertake axial force has been improved through controlling the thrust gasket, the reliability has been strengthened.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic structural view of the inner shaft assembly;
fig. 3 is a right side view of the present invention.
The symbols in the figures illustrate:
1. a cylinder barrel; 101. a left oil hole; 102. a right oil hole; 2. an inner shaft assembly; 21. a central shaft; 2101. a first shaft section; 2102. a second shaft section; 2103. a third shaft section; 2104. a fourth shaft section; 22. a shaft end sleeve; 2201. a shaft end portion; 2202. a rotating sleeve; 201. an inner shaft outer dustproof ring; 202. an inner shaft main seal ring; 203. a right guide ring; 204. a right thrust washer; 3. an inner gear ring; 4. sliding the middle sleeve; 41. the middle part is sleeved with an inner part; 42. the middle sleeve is an outer part; 401. the outer sealing ring of the sliding sleeve; 402. a sealing ring in the sliding sleeve; 403. an outer guide ring of the sliding sleeve; 404. a guide ring in the sliding sleeve; 405. a sealing ring is sleeved in the middle; 5. an end cap; 501. a dustproof ring outside the end cover; 502. an end cover outer sealing ring; 503. an end cap guide ring; 504. a left thrust washer; 505. an end cover inner sealing ring; 6. locking the nut; 601. locking the nut outer dust ring; 602. a dustproof ring is arranged in the locking nut; 7. a left barrel mount; 8. a right cylinder fixing member; 9. a balancing valve.
Detailed Description
The present invention will be further described with reference to the following examples.
Fig. 1-3 show an embodiment of the compact large-torque swing hydraulic cylinder of the present invention, which includes a cylinder barrel 1, an inner shaft assembly 2, an inner gear ring 3, a sliding middle sleeve 4, an end cover 5, a lock nut 6, a left barrel fixing member 7 and a right barrel fixing member 8, wherein a balance valve 9 is fixedly mounted on the upper end of the cylinder barrel 1, and the balance valve 9 is respectively communicated with the cylinder barrel 1 through a left oil hole 101 and a right oil hole 102.
The inner shaft assembly 2 is installed inside the cylinder barrel 1, the inner shaft assembly 2 comprises a central shaft 21 and a shaft end sleeve 22, the central shaft 21 comprises a first shaft section 2101, a second shaft section 2102, a third shaft section 2103 and a fourth shaft section 2104, the first shaft section 2101, the second shaft section 2102, the third shaft section 2103 and the fourth shaft section 2104 are of an integrally formed structure, the shaft end sleeve 22 comprises a shaft end portion 2201 and a rotating sleeve 2202, and the central shaft 21 and the shaft end sleeve 22 are fixedly connected through the fourth shaft section 2104 and the shaft end portion 2201.
A shaft end sleeve 22 of the inner shaft assembly 2 is rotatably connected with an oil cylinder barrel body 1 and a right barrel body fixing piece 8, the oil cylinder barrel body 1 is fixedly connected with the right barrel body fixing piece 8, an inner shaft outer dust ring 201 is arranged between a shaft end portion 2201 and the right barrel body fixing piece 8, right thrust washers 204 are arranged between the shaft end portion 2201 and the oil cylinder barrel body 1 and the right barrel body fixing piece 8, an inner shaft main sealing ring 202 and a right guide ring 203 are arranged between a rotating sleeve 2202 and the inner ring surface of the oil cylinder barrel body 1, the inner shaft main sealing ring 202 is positioned on the right side of the right guide ring 203, the number of the right guide rings 203 is 2, a first shaft section 2101 of a central shaft 21 is fixedly connected with an end cover 5 through a locking nut 6, a locking nut outer dust ring 601 is arranged between the locking nut 6 and the end cover 5, a locking nut inner dust ring 602 is arranged between the locking nut 6 and the first shaft section 2101, the end cover 5 is rotatably connected with the oil cylinder barrel body 1 and the left barrel body fixing piece 7, the oil cylinder barrel body 1 is fixedly connected with the right barrel body fixing piece 1, an outer sealing ring 505 is arranged between the end cover 5 and the left barrel body fixing piece 5, an outer sealing ring 505 is arranged between the end cover 503 and the inner guide ring 503, and the inner ring surface of the oil cylinder barrel body fixing piece 503, and the oil cylinder barrel body fixing piece 502 is arranged between the inner cylinder barrel body fixing piece 503, and the left barrel body fixing piece 502, and the inner guide ring of the oil cylinder barrel body fixing piece 502.
The sliding middle sleeve 4 is arranged between the central shaft 21 and the oil cylinder barrel 1, the left end of the sliding middle sleeve 4 is respectively connected with the central shaft 21 and the oil cylinder barrel 1 in a sliding way, the sliding middle sleeve 4 comprises a middle sleeve inner part 41 and a middle sleeve outer part 42, the middle sleeve inner part 41 and the middle sleeve outer part 42 are fixedly connected through threads, a middle sleeve sealing ring 405 is arranged between the middle sleeve inner part 41 and the middle sleeve outer part 42, a sliding sleeve outer sealing ring 401 and a sliding sleeve outer guiding ring 403 are arranged between the middle sleeve outer part 42 and the oil cylinder barrel 1, the number of the sliding sleeve outer sealing rings 401 is 2, the sliding sleeve outer sealing ring 401 is positioned at the right side of the sliding sleeve outer guiding ring 403, a sliding sleeve inner sealing ring 402 and a sliding sleeve inner guiding ring 404 are arranged between the middle sleeve inner part 41 and a second shaft section 2102 of the central shaft 21, the number of the sliding sleeve inner sealing rings 402 is 2, the inner seal rings 402 of the sliding sleeve are positioned at two sides of the outer guide ring 403 of the sliding sleeve, the third shaft section 2103 of the central shaft 21 is provided with inner helical teeth, the inner ring surface of the right end of the middle sleeve internal part 41 is provided with middle sleeve inner helical teeth, the outer ring surface of the right end of the middle sleeve internal part 41 is provided with middle sleeve outer helical teeth, the inner gear ring 3 is installed between the middle sleeve internal part 41 and the oil cylinder body 1, the inner gear ring 3 is welded and fixed with the oil cylinder body 1, the inner ring surface of the inner gear ring 3 is provided with inner gear ring helical teeth, the inner gear ring helical teeth are meshed with the middle sleeve outer helical teeth, the middle sleeve inner helical teeth are meshed with the inner helical teeth, in order to ensure that the swing hydraulic cylinder can output larger torque, the inclination angles of the helical teeth of the middle sleeve inner helical teeth and the middle sleeve outer helical teeth are designed to be 25 +/-5 degrees, and as an optimal scheme, the inclination angles of the helical teeth of the middle sleeve inner helical teeth and the middle sleeve outer helical teeth are 25 degrees.
In order to meet the new application requirement of a drilling jumbo on a large-torque swing hydraulic cylinder, the torque is improved by adjusting the internal spiral teeth on the basis of unchangeable installation size, the inclination angle of the spiral teeth is adjusted to 25 +/-5 degrees from the traditional 45 degrees, the torque of the swing hydraulic cylinder is improved, the straightness of the swing hydraulic cylinder is ensured through the design of a plurality of guide rings, the service life of a product is prolonged, the capability of bearing the axial force of the swing hydraulic cylinder is improved through a left thrust gasket and a right thrust gasket, and the reliability is enhanced.
However, the above description is only for the specific embodiment of the present invention, and the scope of the present invention should not be limited thereto, so that the replacement of the equivalent component or the equivalent change and modification made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (8)
1. A compact type large-torque swing hydraulic cylinder is characterized by comprising a cylinder barrel, an inner shaft assembly, an inner gear ring, a sliding middle sleeve, an end cover, a locking nut, a left barrel fixing piece and a right barrel fixing piece, wherein a balance valve is fixedly mounted at the upper end of the cylinder barrel and is respectively communicated with the cylinder barrel through a left oil hole and a right oil hole;
the oil cylinder comprises an inner shaft assembly, an oil cylinder body, a right cylinder body fixing piece, an inner shaft main sealing ring, a right guide ring, a first shaft section of a central shaft, an end cover, a locking nut outer dust ring, a locking nut inner dust ring, an end cover outer dust ring, an end cover outer sealing ring and an end cover guide ring, wherein a shaft end sleeve of the inner shaft assembly is rotatably connected with the oil cylinder body and the right cylinder body fixing piece;
the sliding middle sleeve is arranged between the central shaft and the oil cylinder barrel, the left end of the sliding middle sleeve is respectively connected with the central shaft and the oil cylinder barrel in a sliding manner, the sliding middle sleeve comprises a middle sleeve inner part and a middle sleeve outer part, the middle sleeve inner part and the middle sleeve outer part are fixedly connected through threads, a middle sleeve sealing ring is arranged between the middle sleeve inner part and the middle sleeve outer part, a sliding sleeve outer sealing ring and a sliding sleeve outer guide ring are arranged between the middle sleeve outer part and the oil cylinder barrel, a sliding sleeve inner sealing ring and a sliding sleeve inner guide ring are arranged between the middle sleeve inner part and the second shaft section of the central shaft, the number of the sliding sleeve inner sealing rings is 2, the inner seal rings of the sliding sleeve are positioned on two sides of the outer guide ring of the sliding sleeve, inner shaft helical teeth are arranged on the third shaft section of the central shaft, inner ring helical teeth of a middle sleeve are arranged on the surface of the inner ring of the right end of an inner part of the middle sleeve, outer ring helical teeth of a middle sleeve are arranged on the surface of the outer ring of the right end of an inner part of the middle sleeve, the inner ring gear is installed between the inner part of the middle sleeve and the oil cylinder body and fixedly welded with the oil cylinder body, inner ring helical teeth are arranged on the surface of the inner ring gear, the inner ring helical teeth of the inner ring gear are meshed with the outer helical teeth of the middle sleeve, the inner helical teeth of the middle sleeve are meshed with the inner shaft helical teeth, and the inclination angles of the helical teeth of the inner helical teeth of the middle sleeve and the outer helical teeth of the middle sleeve are designed to be 25 +/-5 degrees.
2. The compact high-torque swing hydraulic cylinder according to claim 1, wherein the first shaft section, the second shaft section, the third shaft section and the fourth shaft section are of an integrally formed structure.
3. A compact high torque swing hydraulic cylinder according to claim 1 wherein a right thrust washer is provided between the shaft end and the cylinder barrel and right barrel mount.
4. The compact high-torque swing hydraulic cylinder according to claim 1, wherein the inner shaft main seal ring is located on the right side of a right guide ring, and the number of the right guide ring is 2.
5. The compact high torque swing hydraulic cylinder according to claim 1, wherein a left thrust washer is provided between the end cap and the cylinder barrel and the left barrel mount.
6. The compact high-torque oscillating hydraulic cylinder according to claim 1, wherein the end cover outer sealing ring is located on the left side of the end cover guide ring.
7. The compact high-torque oscillating hydraulic cylinder according to claim 1, wherein the number of the sliding sleeve outer sealing rings is 2, and the sliding sleeve outer sealing rings are positioned on the right side of the sliding sleeve outer guide ring.
8. A compact high torque oscillating cylinder according to any one of claims 1 to 7, characterised in that the angle of inclination of the helical teeth of the intermediate set of inner and outer helical teeth is 25 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223091336.2U CN218509855U (en) | 2022-11-21 | 2022-11-21 | Compact type large-torque swing hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223091336.2U CN218509855U (en) | 2022-11-21 | 2022-11-21 | Compact type large-torque swing hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218509855U true CN218509855U (en) | 2023-02-21 |
Family
ID=85220335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223091336.2U Active CN218509855U (en) | 2022-11-21 | 2022-11-21 | Compact type large-torque swing hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218509855U (en) |
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2022
- 2022-11-21 CN CN202223091336.2U patent/CN218509855U/en active Active
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