CN218624845U - Swing hydraulic cylinder for down-the-hole drill - Google Patents
Swing hydraulic cylinder for down-the-hole drill Download PDFInfo
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- CN218624845U CN218624845U CN202223090745.0U CN202223090745U CN218624845U CN 218624845 U CN218624845 U CN 218624845U CN 202223090745 U CN202223090745 U CN 202223090745U CN 218624845 U CN218624845 U CN 218624845U
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Abstract
The utility model provides a down-the-hole drill is with swing pneumatic cylinder, including the hydro-cylinder barrel, interior axle subassembly, the ring gear, slip intermediate coat, left end lid and right-hand member lid, the upper end of hydro-cylinder barrel is equipped with left hydraulic fluid port, right hydraulic fluid port, left hydraulic fluid port is linked together with the left side cavity of the inside of hydro-cylinder barrel, right hydraulic fluid port is linked together with the right side cavity of the inside of hydro-cylinder barrel, the fixed ring flange that is equipped with of right-hand member of hydro-cylinder barrel, interior axle unit mount is in the inside of hydro-cylinder barrel, interior axle subassembly is including the slip shaft section, oblique tooth shaft section, supporting shaft section and external shaft section. The swing hydraulic cylinder can realize larger output torque and rotation angle in a smaller volume range, the cylinder diameter of the swing hydraulic cylinder is controlled to be 70mm, a lot of space is saved, the structure is compact, and the use requirement of a down-the-hole drill is met.
Description
Technical Field
The utility model relates to a swing hydraulic cylinder technical field especially relates to a swing hydraulic cylinder for down-the-hole drill.
Background
A down-the-hole drill is an engineering machine for drilling minerals and rocks, and is a device which directly impacts a drill bit by a hammer which is submerged in a hole and drives a drill rod to rotate outside the hole to drill the rocks. At present, a great number of down-the-hole drills are used in the earth and rocky excavation blasting engineering of mining industry, water and electricity, traffic and the like. When the swing hydraulic cylinder is used for a down-the-hole drill, the down-the-hole drill has strict requirements on the volume and the cylinder diameter of the swing hydraulic cylinder, and the cylinder diameter of the traditional swing hydraulic cylinder needs to be more than 90mm and cannot be installed. In order to solve the problem, the utility model provides a swing hydraulic cylinder for down-the-hole drill, 70mm is controlled to this swing hydraulic cylinder's bore, has saved a lot of spaces, and compact structure satisfies down-the-hole drill's operation requirement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses there is strict requirement to down-the-hole drill to the volume and the bore of swing hydraulic cylinder, and the technical problem that traditional swing hydraulic cylinder can't be installed provides a down-the-hole drill and uses swing hydraulic cylinder, and this swing hydraulic cylinder can realize great output torque and rotation angle in less volume range, and 70mm is controlled to this swing hydraulic cylinder's bore, has saved a lot of spaces, and compact structure satisfies down-the-hole drill's operation requirement.
Therefore, the technical scheme of the utility model is that, a swing hydraulic cylinder for down-the-hole drill, including the hydro-cylinder barrel, interior axle subassembly, ring gear, slip intermediate sleeve, left end cover and right-hand member lid, the upper end of hydro-cylinder barrel is equipped with left hydraulic fluid port, right hydraulic fluid port, left hydraulic fluid port is linked together with the left side cavity of the inside of hydro-cylinder barrel, right hydraulic fluid port is linked together with the right side cavity of the inside of hydro-cylinder barrel, the right-hand member of hydro-cylinder barrel is fixed and is equipped with the ring flange, interior axle subassembly is installed in the inside of hydro-cylinder barrel, interior axle subassembly includes slip shaft section, skewed tooth shaft section, supporting shaft section and external shaft section;
the left end cover is installed at the left end of the oil cylinder barrel body, the left end cover is fixedly connected with the oil cylinder barrel body, an end cover sealing ring is arranged between the left end cover and the oil cylinder barrel body, an inner shaft installation groove is formed in the middle of the right end of the left end cover, the right end of the sliding shaft section is rotatably connected with the left end cover through the inner shaft installation groove, a left thrust gasket is arranged between the right end face of the sliding shaft section and the left end cover, and a left guide ring is arranged between the outer ring surface of the right end of the sliding shaft section and the inner shaft installation groove of the left end cover;
the right end cover is arranged at the right end of the oil cylinder barrel body, the right end cover is fixedly connected with the oil cylinder barrel body, a right end cover outer dustproof ring and a right end cover outer dustproof ring are arranged between the right end cover and the oil cylinder barrel body, an inner shaft mounting hole is formed in the middle of the right end cover, the supporting shaft section is rotatably connected with the right end cover through the inner shaft mounting hole, a right guide ring, a right end cover inner sealing ring and a right end cover inner dustproof ring are sequentially arranged between the right end cover and the supporting shaft section, a thrust clamping ring is arranged at the right end of the supporting shaft section, and a right thrust gasket is arranged between the thrust clamping ring and the right end cover;
the sliding middle sleeve is arranged between the sliding shaft section, the helical gear shaft section and the oil cylinder barrel body, the left end of the sliding middle sleeve is respectively connected with the sliding shaft section and the oil cylinder barrel body in a sliding mode, a sliding sleeve outer sealing ring is arranged between the left end of the sliding middle sleeve and the oil cylinder barrel body, a sliding sleeve inner sealing ring is arranged between the left end of the sliding middle sleeve and the sliding shaft section, inner helical teeth are arranged on the helical gear shaft section, middle sleeve inner helical teeth are arranged on the surface of an inner ring of the right end of the sliding middle sleeve, middle sleeve outer helical teeth are arranged on the surface of an outer ring of the right end of the sliding middle sleeve, an inner gear ring is arranged between the sliding middle sleeve and the oil cylinder barrel body, the inner gear ring is fixedly welded with the oil cylinder barrel body, inner gear ring helical teeth are arranged on the surface of the inner ring, the inner gear helical teeth are meshed with the middle sleeve outer helical teeth, and the middle sleeve inner helical teeth are meshed with the inner helical teeth.
Preferably, the cylinder diameter of the swing hydraulic cylinder is 70mm in size.
Preferably, the outer diameter of the right end of the cylinder tube body is lower than the outer diameter of the left end of the cylinder tube body.
Preferably, the sliding shaft section, the helical gear shaft section, the supporting shaft section and the external shaft section are of an integrally formed structure.
Preferably, the sliding shaft section, the helical gear shaft section and the supporting shaft section are positioned inside the cylinder body, and the external connecting shaft section is positioned outside the cylinder body.
Preferably, the circumscribing shaft segment is cylindrical in shape.
Preferably, the right end cover outer dustproof ring is positioned on the outer side of the right end cover outer dustproof ring, and the right end cover inner dustproof ring is positioned on the outer side of the right end cover inner sealing ring.
The beneficial effects of the utility model are that, this swing hydraulic cylinder's cylinder diameter size control is to 70mm, and this swing hydraulic cylinder is compared with traditional swing hydraulic cylinder and can be realized great output torque and rotation angle in less volume range, has saved a lot of spaces, and compact structure has satisfied down-the-hole drill's operation requirement.
The swing hydraulic cylinder is simple and reliable in overall structure, the running straightness of the swing hydraulic cylinder is guaranteed through the design of the left guide ring and the right guide ring, the service life of a product is prolonged, the capability of bearing axial force of the swing hydraulic cylinder is improved through the left thrust gasket and the right thrust gasket, and the reliability is enhanced.
Drawings
Fig. 1 is a cross-sectional view of the present invention;
fig. 2 is a right side view of the present invention;
fig. 3 is a structural view of the inner shaft assembly.
The symbols in the figures illustrate:
1. a cylinder barrel; 101. a left oil port; 102. a right oil port; 2. an inner shaft assembly; 21. a sliding shaft section; 22. a helical gear shaft section; 23. supporting the shaft section; 2301. a thrust snap ring; 24. externally connecting a shaft section; 201. a left thrust washer; 202. a left guide ring; 203. a right thrust washer; 204. a right guide ring; 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 left end cap seal 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 flange plate.
Detailed Description
The present invention will be further described with reference to the following examples.
Fig. 1-fig. 3 are the utility model relates to a down-the-hole drill is with embodiment of swing hydraulic cylinder, it includes cylinder barrel 1, interior axle subassembly 2, ring gear 3, cover 4 in the middle of sliding, left end lid 5 and right-hand member lid 6, the upper end of cylinder barrel 1 is equipped with left hydraulic fluid port 101, right hydraulic fluid port 102, left hydraulic fluid port 101 is linked together with the left side cavity of the inside of cylinder barrel 1, right hydraulic fluid port 102 is linked together with the right side cavity of the inside of cylinder barrel 1, the fixed ring flange 7 that is equipped with of right-hand member of cylinder barrel 1, the external diameter of the right-hand member of cylinder barrel 1 is in the external diameter of the left end of cylinder barrel 1 down, in order to make things convenient for the installation of ring flange 7 and down-the hole drill mount.
The inner shaft assembly 2 is arranged inside the oil cylinder barrel body 1, the inner shaft assembly 2 comprises a sliding shaft section 21, an oblique tooth shaft section 22, a supporting shaft section 23 and an external shaft section 24, the sliding shaft section 21, the oblique tooth shaft section 22, the supporting shaft section 23 and the external shaft section 24 are of an integrally formed structure, the sliding shaft section 21, the oblique tooth shaft section 22, the supporting shaft section 23 is located inside the oil cylinder barrel body 1, the external shaft section 24 is located outside the oil cylinder barrel body 1, the external shaft section 24 is cylindrical in shape, and the structure design facilitates installation of external rotating parts.
The left end cover 5 is installed at the left end of the oil cylinder barrel body 1, the left end cover 5 is fixedly connected with the oil cylinder barrel body 1, an end cover sealing ring 501 is arranged between the left end cover 5 and the oil cylinder barrel body 1, an inner shaft installation groove is formed in the middle of the right end of the left end cover 5, the right end of the sliding shaft section 21 is rotatably connected with the left end cover 5 through the inner shaft installation groove, a left thrust gasket 201 is arranged between the right end face of the sliding shaft section 21 and the left end cover 5, and a left guide ring 202 is arranged between the outer ring surface of the right end of the sliding shaft section 21 and the inner shaft installation groove of the left end cover 5.
The right end cover 6 is installed at the right end of the oil cylinder barrel body 1, the right end cover 6 is fixedly connected with the oil cylinder barrel body 1, a right end cover outer dust ring 601 and a right end cover outer dust ring 602 are arranged between the right end cover 6 and the oil cylinder barrel body 1, the right end cover outer dust ring 601 is located on the outer side of the right end cover outer dust ring 602, an inner shaft installation hole is formed in the middle of the right end cover 6, the supporting shaft section 23 is rotatably connected with the right end cover 6 through the inner shaft installation hole, a right guide ring 204, a right end cover inner dust ring 604 and a right end cover inner dust ring 603 are sequentially arranged between the right end cover 6 and the supporting shaft section 23, the right end cover inner dust ring 603 is located on the outer side of the right end cover inner dust ring 604, a thrust clamping ring 2301 is arranged at the right end of the supporting shaft section 23, and a right thrust gasket 203 is arranged between the thrust clamping ring 2301 and the right end cover 6.
The sliding middle sleeve 4 is arranged between the sliding shaft section 21 and the inclined gear shaft section 22 and the oil cylinder barrel body 1, the left end of the sliding middle sleeve 4 is respectively connected with the sliding shaft section 21 and the oil cylinder barrel body 1 in a sliding mode, a sliding sleeve outer sealing ring 401 is arranged between the left end of the sliding middle sleeve 4 and the oil cylinder barrel body 1, a sliding sleeve inner sealing ring 402 is arranged between the left end of the sliding middle sleeve 4 and the sliding shaft section 21, inner inclined teeth are arranged on the inclined gear shaft section 22, middle sleeve inner inclined teeth are arranged on the surface of an inner ring of the right end of the sliding middle sleeve 4, middle sleeve outer inclined teeth are arranged on the surface of an outer ring of the right end of the sliding middle sleeve 4, the inner gear ring 3 is arranged between the sliding middle sleeve 4 and the oil cylinder barrel body 1, the inner gear ring 3 is fixedly welded with the oil cylinder barrel body 1, inner gear ring inclined teeth are arranged on the surface of the inner gear ring 3, the inner inclined teeth are meshed with the middle sleeve outer inclined teeth, and the middle sleeve inner inclined teeth are meshed with the inner inclined teeth.
The swing hydraulic cylinder is simple and reliable in overall structure, the straightness of operation of the swing hydraulic cylinder is guaranteed through the design of the left guide ring and the right guide ring, the service life of a product is prolonged, the capacity of bearing axial force of the swing hydraulic cylinder is improved through the left thrust gasket and the right thrust gasket, and reliability is enhanced.
The cylinder diameter of the traditional swing hydraulic cylinder needs to be more than 90mm, in order to meet the requirements of a down-the-hole drill on the volume and the cylinder diameter of the swing hydraulic cylinder, the cylinder diameter of the swing hydraulic cylinder is controlled to 70mm in the design, the swing hydraulic cylinder and the traditional swing hydraulic cylinder can achieve larger output torque and rotation angle in a smaller volume range, a lot of space is saved, the structure is compact, and the using requirements of the down-the-hole drill are met.
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 (7)
1. A swing hydraulic cylinder for a down-the-hole drill is characterized by comprising a cylinder body, an inner shaft assembly, an inner gear ring, a sliding middle sleeve, a left end cover and a right end cover, wherein a left oil port and a right oil port are formed in the upper end of the cylinder body, the left oil port is communicated with a left side cavity inside the cylinder body, the right oil port is communicated with a right side cavity inside the cylinder body, a flange plate is fixedly arranged at the right end of the cylinder body, the inner shaft assembly is installed inside the cylinder body, and the inner shaft assembly comprises a sliding shaft section, an oblique gear shaft section, a supporting shaft section and an external shaft section;
the left end cover is installed at the left end of the oil cylinder barrel body, the left end cover is fixedly connected with the oil cylinder barrel body, an end cover sealing ring is arranged between the left end cover and the oil cylinder barrel body, an inner shaft installation groove is formed in the middle of the right end of the left end cover, the right end of the sliding shaft section is rotatably connected with the left end cover through the inner shaft installation groove, a left thrust gasket is arranged between the right end face of the sliding shaft section and the left end cover, and a left guide ring is arranged between the outer ring surface of the right end of the sliding shaft section and the inner shaft installation groove of the left end cover;
the right end cover is installed at the right end of the oil cylinder barrel body, the right end cover is fixedly connected with the oil cylinder barrel body, an outer dust ring of the right end cover and an outer dust ring of the right end cover are arranged between the right end cover and the oil cylinder barrel body, an inner shaft installation hole is formed in the middle of the right end cover, the supporting shaft section is rotatably connected with the right end cover through the inner shaft installation hole, a right guide ring, an inner sealing ring of the right end cover and an inner dust ring of the right end cover are sequentially arranged between the right end cover and the supporting shaft section, a thrust clamping ring is arranged at the right end of the supporting shaft section, and a right thrust gasket is arranged between the thrust clamping ring and the right end cover;
the sliding middle sleeve is arranged between the sliding shaft section, the helical gear shaft section and the oil cylinder barrel body, the left end of the sliding middle sleeve is respectively in sliding connection with the sliding shaft section and the oil cylinder barrel body, an outer sliding sleeve sealing ring is arranged between the left end of the sliding middle sleeve and the sliding shaft section, an inner sliding sleeve sealing ring is arranged between the left end of the sliding middle sleeve and the sliding shaft section, inner helical teeth are arranged on the helical gear shaft section, inner helical teeth are arranged on the inner ring surface of the right end of the sliding middle sleeve, outer helical teeth are arranged on the outer ring surface of the right end of the sliding middle sleeve, middle sleeve outer helical teeth are arranged on the outer ring surface of the right end of the sliding middle sleeve, the inner gear ring is arranged 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 inner ring surface of the inner gear ring, the inner gear ring helical teeth are meshed with the outer helical teeth of the middle sleeve, and the inner helical teeth are meshed with the inner shaft helical teeth.
2. The oscillating hydraulic cylinder for a down-the-hole drill according to claim 1, characterized in that the diameter of the oscillating hydraulic cylinder is 70mm.
3. The swing hydraulic cylinder for a down-the-hole drill according to claim 1, wherein the outer diameter of the right end of the cylinder barrel is lower than the outer diameter of the left end of the cylinder barrel.
4. The oscillating hydraulic cylinder for a down-the-hole drill according to claim 1, wherein the sliding shaft section, the helical gear shaft section, the support shaft section and the circumscribed shaft section are of an integrally formed structure.
5. The oscillating hydraulic cylinder for a down-the-hole drill according to claim 4, wherein the sliding shaft section, the helical gear shaft section and the supporting shaft section are located inside the cylinder barrel, and the circumscribed shaft section is located outside the cylinder barrel.
6. A swing cylinder for a down-the-hole drill according to claim 5, characterised in that the circumscribing shaft section is cylindrical in shape.
7. The oscillating hydraulic cylinder for a down-the-hole drill according to claim 1, characterized in that the right end cap outer dust ring is located outside the right end cap outer sealing ring, and the right end cap inner dust ring is located outside the right end cap inner sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223090745.0U CN218624845U (en) | 2022-11-21 | 2022-11-21 | Swing hydraulic cylinder for down-the-hole drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223090745.0U CN218624845U (en) | 2022-11-21 | 2022-11-21 | Swing hydraulic cylinder for down-the-hole drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218624845U true CN218624845U (en) | 2023-03-14 |
Family
ID=85448898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223090745.0U Active CN218624845U (en) | 2022-11-21 | 2022-11-21 | Swing hydraulic cylinder for down-the-hole drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218624845U (en) |
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2022
- 2022-11-21 CN CN202223090745.0U patent/CN218624845U/en active Active
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