CN218624818U - Maintenance-free swing hydraulic cylinder - Google Patents
Maintenance-free swing hydraulic cylinder Download PDFInfo
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- CN218624818U CN218624818U CN202223105181.3U CN202223105181U CN218624818U CN 218624818 U CN218624818 U CN 218624818U CN 202223105181 U CN202223105181 U CN 202223105181U CN 218624818 U CN218624818 U CN 218624818U
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Abstract
The utility model provides a non-maintaining swing pneumatic cylinder, including cylinder barrel, interior axle, ring gear, slip intermediate coat, left end lid, right-hand member lid, left ring flange, right ring flange, left support bearing and right support bearing, cylinder barrel's upper end is equipped with left oilhole and right oilhole respectively, and cylinder barrel's lower extreme fixed mounting has left fixing base and right fixing base respectively. The swing hydraulic cylinder changes the supporting guide element into the left and right supporting bearings from the guide ring, so that the structure abrasion is reduced, no extra maintenance measure is needed, and the stability and the service life of the swing hydraulic cylinder are improved. Meanwhile, the left and right support bearings for supporting and guiding are designed and arranged in the hydraulic oil, lubricating oil does not need to be additionally added, and the service life is longer.
Description
Technical Field
The utility model relates to a swing hydraulic cylinder technical field especially relates to a non-maintaining swing hydraulic cylinder.
Background
The wet shotcrete machine is a kind of construction equipment widely used in engineering construction, it utilizes compressed air or other power, and the mixed material matched according to a certain proportion is passed through pipeline and delivered and high-speed sprayed onto the sprayed surface, and coagulated and hardened so as to form concrete supporting layer, and the wet shotcrete machine can play an important role in various building fields. Because of the operation environment of wet blasting machine is abominable, traditional swing hydraulic cylinder uses fixed mode installation, leads to swing hydraulic cylinder's maintenance difficulty. In order to deal with the application demand of the wet blasting machine to the maintenance-free and long service life of the swing hydraulic cylinder, the utility model provides a maintenance-free swing hydraulic cylinder.
SUMMERY OF THE UTILITY MODEL
The utility model discloses to because of the operation environment of wet blasting machine is more abominable, lead to swing hydraulic cylinder to maintain the technical problem of difficulty, provide a non-maintaining swing hydraulic cylinder, this swing hydraulic cylinder will support the guide element and change into left and right sides support bearing by the guide ring for structural wear diminishes, does not need extra maintenance measure, has improved swing hydraulic cylinder's stability and life-span. Meanwhile, the left and right support bearings for supporting and guiding are designed and arranged in the hydraulic oil, lubricating oil does not need to be additionally added, and the service life is longer.
Therefore, the technical scheme of the utility model is that, a maintenance-free swing hydraulic cylinder comprises a cylinder barrel, an inner shaft, an inner gear ring, a sliding middle sleeve, a left end cover, a right end cover, a left flange plate, a right flange plate, a left support bearing and a right support bearing, wherein the upper end of the cylinder barrel is respectively provided with a left oil hole and a right oil hole, and the lower end of the cylinder barrel is respectively fixedly provided with a left fixing seat and a right fixing seat;
the inner shaft is arranged inside the oil cylinder barrel and comprises a left spline shaft section, a left supporting shaft section, a helical spline shaft section, a sliding shaft section, a right supporting shaft section and a right spline shaft section, splines are arranged on the left spline shaft section and the right spline shaft section, the left spline shaft section is connected with a left flange plate through a spline pair, the right spline shaft section is connected with a right flange plate through the spline pair, the left supporting shaft section is rotatably connected with a left end cover, the left end cover is fixedly connected with the oil cylinder barrel body, a left end cover outer dust ring and a left end cover outer sealing ring are arranged between the left end cover and the inner ring surface of the oil cylinder barrel, a left end cover inner dust ring and a left end cover inner sealing ring are arranged between the left end cover and the outer ring surface of the left supporting shaft section, the right supporting shaft section is rotatably connected with a right end cover, the right end cover is fixedly connected with the oil cylinder barrel body, a right end cover outer dust ring and a right end cover outer sealing ring are arranged between the right end cover and the inner ring surface of the oil cylinder barrel body, and a right end cover inner dust ring inner sealing ring are arranged between the right end cover and the right supporting shaft section;
a left end cover bearing groove is formed in the right side of the left end cover, a left supporting bearing is installed inside the left end cover bearing groove, a left supporting shaft section is rotatably connected with the left end cover through the left supporting bearing, a left thrust gasket is arranged between the left end of the left supporting bearing and the left end cover, a right end cover bearing groove is formed in the left side of the right end cover, a right supporting bearing is installed inside the right end cover bearing groove, the right supporting shaft section is rotatably connected with the right end cover through the right supporting bearing, and a right thrust gasket is arranged between the right end of the right supporting bearing and the right end cover;
preferably, the inner gear ring is mounted between the sliding middle sleeve and the oil cylinder barrel body, the inner gear ring is welded and fixed with the oil cylinder barrel body, inner gear ring helical teeth are arranged on the surface of an inner ring of the inner gear ring, the sliding middle sleeve is mounted between the helical gear shaft section, the sliding shaft section and the oil cylinder barrel body, inner shaft helical teeth are arranged on the helical gear shaft section, middle sleeve outer helical teeth are arranged on the surface of an outer ring of the left end of the sliding middle sleeve, middle sleeve inner helical teeth are arranged on the surface of the inner ring of the left end of the sliding middle sleeve, the inner helical teeth of the middle sleeve are meshed with the inner shaft helical teeth, and the middle sleeve outer helical teeth are meshed with the gear ring helical teeth;
preferably, the outer ring surface of the right end of the sliding middle sleeve is in sliding connection with the oil cylinder barrel, a sliding sleeve outer sealing ring is arranged between the outer ring surface of the right end of the sliding middle sleeve and the oil cylinder barrel, an inner ring surface of the right end of the sliding middle sleeve is in sliding connection with the sliding shaft section, and a sliding sleeve inner sealing ring is arranged between the inner ring surface of the right end of the sliding middle sleeve and the sliding shaft section.
Preferably, the left spline shaft section, the left support shaft section, the helical gear shaft section, the sliding shaft section, the right support shaft section and the right spline shaft section are of an integrally formed structure.
Preferably, the outer dustproof ring of the left end cover is positioned on the left side of the outer dustproof ring of the left end cover, and the inner dustproof ring of the left end cover is positioned on the left side of the inner sealing ring of the left end cover.
Preferably, the right end cover outer dustproof ring is positioned on the right side of the right end cover outer dustproof ring, and the right end cover inner dustproof ring is positioned on the right side of the right end cover inner sealing ring.
The beneficial effects of the utility model are that, this swing hydraulic cylinder will support the guide element and change into left and right sides support bearing by the guide ring for structural wear diminishes, does not need extra maintenance measure, has improved swing hydraulic cylinder's stability and life-span. Meanwhile, the left and right support bearings for supporting and guiding are designed and arranged in the hydraulic oil, lubricating oil does not need to be additionally added, and the service life is longer.
The swing hydraulic cylinder improves the axial force bearing capacity of the swing hydraulic cylinder through the design of the left thrust washer and the right thrust washer, and the left support bearing and the right support bearing are designed to serve as support guide elements for the inner shaft to operate, so that the reliability is enhanced, the service life of the swing hydraulic cylinder is prolonged, and the maintenance-free purpose is achieved.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic view of the inner shaft;
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; 103. a left fixed seat; 104. a right fixed seat; 2. an inner shaft; 21. a left spline shaft section; 22. a left support shaft section; 23. a helical gear shaft section; 24. a sliding shaft section; 25. a right support shaft section; 26. a right spline shaft section; 3. an inner gear ring; 4. sliding the middle sleeve; 401. the outer sealing ring of the sliding sleeve; 402. a sealing ring in the sliding sleeve; 5. a left end cap; 501. a dust ring is arranged outside the left end cover; 502. the outer sealing ring of the left end cover; 503. a dustproof ring is arranged in the left end cover; 504. a left end cover inner sealing ring; 6. a right end cap; 601. a dust ring is arranged outside the right end cover; 602. the right end cover is provided with an outer sealing ring; 603. a dustproof ring is arranged in the right end cover; 604. a right end cover inner sealing ring; 7. a left flange plate; 8. a right flange plate; 9. a left support bearing; 10. a right support bearing; 11. a left thrust washer; 12. and a right thrust washer.
Detailed Description
The present invention will be further described with reference to the following examples.
Fig. 1-3 are embodiments of the maintenance-free swing hydraulic cylinder of the present invention, which includes a cylinder barrel 1, an inner shaft 2, an inner gear ring 3, a sliding middle sleeve 4, a left end cap 5, a right end cap 6, a left flange 7, a right flange 8, a left support bearing 9 and a right support bearing 10, wherein the upper end of the cylinder barrel 1 is respectively provided with a left oil hole 101 and a right oil hole 102, and the lower end of the cylinder barrel 1 is respectively and fixedly provided with a left fixing seat 103 and a right fixing seat 104.
The inner shaft 2 is arranged inside the cylinder barrel 1, the inner shaft 2 comprises a left spline shaft section 21, a left support shaft section 22, a helical tooth shaft section 23, a sliding shaft section 24, a right support shaft section 25 and a right spline shaft section 26, the left spline shaft section 21, the left support shaft section 22, the helical tooth shaft section 23, the sliding shaft section 24, the right support shaft section 25 and the right spline shaft section 26 are of an integrally formed structure, splines are arranged on the left spline shaft section 21 and the right spline shaft section 26, the left spline shaft section 21 is connected with a left flange 7 through a spline pair, the right spline shaft section 26 is connected with a right flange 8 through a spline pair, the left support shaft section 22 is rotationally connected with a left end cover 5, the left end cover 5 is fixedly connected with the cylinder barrel 1, a left end cover outer dust ring 501 and a left end cover outer dust ring 502 are arranged between the left end cover 5 and the inner ring surface of the cylinder barrel 1, the left end cover outer dustproof ring 501 is located on the left side of the left end cover outer dustproof ring 502, a left end cover inner dustproof ring 503 and a left end cover inner sealing ring 504 are arranged between the outer ring surfaces of the left end cover 5 and the left supporting shaft section 22, the left end cover inner dustproof ring 503 is located on the left side of the left end cover inner sealing ring 504, the right supporting shaft section 25 is rotatably connected with the right end cover 6, the right end cover 6 is fixedly connected with the cylinder barrel body 1, a right end cover outer dustproof ring 601 and a right end cover outer sealing ring 602 are arranged between the right end cover 6 and the inner ring surface of the cylinder barrel body 1, the right end cover outer dustproof ring 601 is located on the right side of the right end cover outer sealing ring 602, a right end cover inner dustproof ring 603 and a right end cover inner sealing ring 604 are arranged between the right end cover 6 and the outer ring surface of the right supporting shaft section 25, and the right end cover inner dustproof ring 603 is located on the right side of the right end cover inner sealing ring 604.
The right side of the left end cover 5 is provided with a left end cover bearing groove, a left supporting bearing 9 is arranged inside the left end cover bearing groove, a left supporting shaft section 22 is rotatably connected with the left end cover 5 through the left supporting bearing 9, a left thrust gasket 11 is arranged between the left end of the left supporting bearing 9 and the left end cover 5, a right end cover bearing groove is arranged on the left side of the right end cover 6, a right supporting bearing 10 is arranged inside the right end cover bearing groove, a right supporting shaft section 25 is rotatably connected with the right end cover 6 through the right supporting bearing 10, a right thrust gasket 12 is arranged between the right end of the right supporting bearing 10 and the right end cover 6, the left supporting bearing 9 and the right supporting bearing 10 are used as supporting and guiding elements of inner shaft operation, namely, the supporting and guiding elements are changed into left and right supporting bearings from guiding rings, the structure is small in abrasion, no extra maintenance measure is needed, and the stability and the service life of the swing hydraulic cylinder are improved. Meanwhile, the left and right support bearings for supporting and guiding are designed and arranged inside hydraulic oil, lubricating oil does not need to be added additionally, and the service life is longer.
The inner gear ring 3 is arranged between the sliding middle sleeve 4 and the oil cylinder barrel 1, the inner gear ring 3 is welded and fixed with the oil cylinder barrel 1, inner gear ring helical teeth are arranged on the surface of an inner ring of the inner gear ring 3, the sliding middle sleeve 4 is arranged between the helical gear shaft section 23, the sliding shaft section 24 and the oil cylinder barrel 1, inner shaft helical teeth are arranged on the helical gear shaft section 23, middle sleeve outer helical teeth are arranged on the surface of an outer ring of the left end of the sliding middle sleeve 4, middle sleeve inner helical teeth are arranged on the surface of the inner ring of the left end of the sliding middle sleeve 4, the middle sleeve inner helical teeth are meshed with the inner shaft helical teeth, and the middle sleeve outer helical teeth are meshed with the gear ring helical teeth.
The outer ring surface of the right end of the sliding middle sleeve 4 is connected with the oil cylinder barrel 1 in a sliding mode, a sliding sleeve outer sealing ring 401 is arranged between the outer ring surface of the right end of the sliding middle sleeve 4 and the oil cylinder barrel 1, an inner ring surface of the right end of the sliding middle sleeve 4 is connected with a sliding shaft section 24 in a sliding mode, and a sliding sleeve inner sealing ring 402 is arranged between the inner ring surface of the right end of the sliding middle sleeve 4 and the sliding shaft section 24.
The swing hydraulic cylinder is free of maintenance and long in service life in order to meet the application requirements of a wet spraying machine on the swing hydraulic cylinder, the swing hydraulic cylinder changes a supporting guide element from a guide ring to a left supporting bearing and a right supporting bearing, so that structural abrasion is reduced, extra maintenance measures are not needed, and the stability and the service life of the swing hydraulic cylinder are improved. Meanwhile, the left and right support bearings for supporting and guiding are designed and arranged in the hydraulic oil, lubricating oil does not need to be additionally added, and the service life is longer.
The swing hydraulic cylinder improves the axial force bearing capacity of the swing hydraulic cylinder through the design of the left thrust washer and the right thrust washer, and the left support bearing and the right support bearing are designed to serve as support guide elements for the inner shaft to operate, so that the reliability is enhanced, the service life of the swing hydraulic cylinder is prolonged, and the maintenance-free purpose is achieved.
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 components or the equivalent changes and modifications made according to the protection scope of the present invention should be covered by the claims of the present invention.
Claims (6)
1. A maintenance-free swing hydraulic cylinder is characterized by comprising a cylinder barrel, an inner shaft, an inner gear ring, a sliding middle sleeve, a left end cover, a right end cover, a left flange plate, a right flange plate, a left support bearing and a right support bearing, wherein the upper end of the cylinder barrel is respectively provided with a left oil hole and a right oil hole, and the lower end of the cylinder barrel is respectively and fixedly provided with a left fixed seat and a right fixed seat;
the inner shaft is arranged inside the oil cylinder barrel and comprises a left spline shaft section, a left supporting shaft section, a helical gear shaft section, a sliding shaft section, a right supporting shaft section and a right spline shaft section, splines are arranged on the left spline shaft section and the right spline shaft section, the left spline shaft section is connected with a left flange plate through a spline pair, the right spline shaft section is connected with a right flange plate through a spline pair, the left supporting shaft section is rotationally connected with a left end cover, the left end cover is fixedly connected with the oil cylinder barrel body, a left end cover outer dust ring and a left end cover outer sealing ring are arranged between the left end cover and the inner ring surface of the oil cylinder barrel, a left end cover inner dust ring and a left end cover inner sealing ring are arranged between the left end cover and the outer ring surface of the left supporting shaft section, the right supporting shaft section is rotationally connected with a right end cover, the right end cover is fixedly connected with the oil cylinder barrel body, a right end cover outer dust ring and a right end cover outer sealing ring are arranged between the right end cover and the inner ring surface of the oil cylinder barrel body;
the right side of left end cover is equipped with left end cover bearing groove, the internally mounted in left end cover bearing groove has left support bearing, left side support shaft section passes through left support bearing and left end cover swivelling joint, be equipped with left thrust gasket between left end and the left end cover of left side support bearing, the left side of right end cover is equipped with right-hand member lid bearing groove, the internally mounted in right-hand member lid bearing groove has right support bearing, right side support shaft section passes through right support bearing and right-hand member lid swivelling joint, be equipped with right thrust gasket between right-hand member and the right-hand member lid of right side support bearing.
2. The maintenance-free swing hydraulic cylinder according to claim 1, wherein the inner gear ring is mounted between the sliding intermediate sleeve and the oil cylinder barrel body, the inner gear ring is welded and fixed to the oil cylinder barrel body, inner gear ring helical teeth are arranged on the surface of an inner ring of the inner gear ring, the sliding intermediate sleeve is mounted between the helical gear shaft section, the sliding shaft section and the oil cylinder barrel body, inner shaft helical teeth are arranged on the helical gear shaft section, intermediate sleeve outer helical teeth are arranged on the surface of an outer ring of the left end of the sliding intermediate sleeve, intermediate sleeve inner helical teeth are arranged on the surface of an inner ring of the left end of the sliding intermediate sleeve, the intermediate sleeve inner helical teeth are meshed with the inner shaft helical teeth, and the intermediate sleeve outer helical teeth are meshed with the gear ring helical teeth.
3. The maintenance-free swing hydraulic cylinder according to claim 2, wherein an outer ring surface of a right end of the sliding intermediate sleeve is slidably connected with the oil cylinder barrel, a sliding sleeve outer sealing ring is arranged between the outer ring surface of the right end of the sliding intermediate sleeve and the oil cylinder barrel, an inner ring surface of the right end of the sliding intermediate sleeve is slidably connected with the sliding shaft section, and a sliding sleeve inner sealing ring is arranged between the sliding shaft section and the inner ring surface of the right end of the sliding intermediate sleeve.
4. The maintenance-free oscillating hydraulic cylinder according to claim 3, wherein the left spline shaft section, the left support shaft section, the helical gear shaft section, the sliding shaft section, the right support shaft section and the right spline shaft section are of an integrally formed structure.
5. The maintenance-free oscillating hydraulic cylinder according to claim 3, wherein the left end cover outer dust ring is positioned on the left side of the left end cover outer sealing ring, and the left end cover inner dust ring is positioned on the left side of the left end cover inner sealing ring.
6. The maintenance-free oscillating hydraulic cylinder according to claim 3, wherein the right end cover outer dust ring is positioned on the right side of the right end cover outer sealing ring, and the right end cover inner dust ring is positioned on the right side of the right end cover inner sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223105181.3U CN218624818U (en) | 2022-11-22 | 2022-11-22 | Maintenance-free swing hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223105181.3U CN218624818U (en) | 2022-11-22 | 2022-11-22 | Maintenance-free swing hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218624818U true CN218624818U (en) | 2023-03-14 |
Family
ID=85450992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223105181.3U Active CN218624818U (en) | 2022-11-22 | 2022-11-22 | Maintenance-free swing hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218624818U (en) |
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2022
- 2022-11-22 CN CN202223105181.3U patent/CN218624818U/en active Active
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