CN204343973U - The integrated bearing housing of helicoid hydraulic motor - Google Patents
The integrated bearing housing of helicoid hydraulic motor Download PDFInfo
- Publication number
- CN204343973U CN204343973U CN201420801892.0U CN201420801892U CN204343973U CN 204343973 U CN204343973 U CN 204343973U CN 201420801892 U CN201420801892 U CN 201420801892U CN 204343973 U CN204343973 U CN 204343973U
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- Prior art keywords
- bearing
- shell
- inner sleeve
- main shaft
- metal
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- Sliding-Contact Bearings (AREA)
- Hydraulic Motors (AREA)
Abstract
The integrated bearing housing of this helicoid hydraulic motor, the lower bearing shell comprising main shaft, be fixed on the upper journal bearing inner sleeve of main shaft upper end, be fixed on the lower radial bearing inner sleeve of main shaft lower end, be plugged in the upper bearing (metal) shell on bearing inner sleeve and be plugged on bearing inner sleeve, the lower end of upper bearing (metal) shell is fixed in lower bearing shell upper end by threaded engagement.During main axis, it drives upper journal bearing inner sleeve to rotate relative to upper bearing (metal) shell and lower bearing shell with lower radial bearing inner sleeve, upper bearing (metal) shell and lower bearing shell are threaded connection and utilize thrust bearing and main shaft to fix, and can bear larger axial force, and therefore stable drive, use are reliably.Because omitted herein the mode that traditional bearing outside is connected with cartridge housing, structure is simple, is convenient to processing and manufacturing, reduces cost, is convenient to workman's installation.
Description
Technical field
The utility model relates to drilling machinery technical field, is specifically related to a kind of integrated bearing housing of helicoid hydraulic motor.
Background technology
Screw drill transmission shaft is one of vitals of composition helicoid hydraulic motor, and be arranged on the lower end of universal drive shaft, be connected with drill bit, the kinetic energy be applied in by drilling tool passes to drill bit.Therefore the operating efficiency directly affecting drill bit whether reasonable in design of power transmission shaft.Existing helicoid hydraulic motor is made up of bearing inner sleeve, bearing outside and cartridge housing, there is complex structure, processing time consuming, assembling effort, shortcoming that manufacturing cost is high.
Summary of the invention
The utility model in order to overcome the deficiency of above technology, provide that a kind of structure is simple, assembling easily, the integrated bearing housing of the reliable helicoid hydraulic motor of stable drive.
The utility model overcomes the technical scheme that its technical problem adopts:
The integrated bearing housing of this helicoid hydraulic motor, comprise main shaft, be fixed on the upper journal bearing inner sleeve of main shaft upper end, be fixed on the lower radial bearing inner sleeve of main shaft lower end, the lower bearing shell being plugged in the upper bearing (metal) shell on bearing inner sleeve and being plugged on bearing inner sleeve, the lower end of upper bearing (metal) shell is fixed in described lower bearing shell upper end by threaded engagement, described main shaft is provided with thrust bearing, the inner ring lower end of described thrust bearing contacts with the hold-down nut be combined on main shaft, its inner ring upper end and upper end, outer ring contact with upper journal bearing inner sleeve and upper bearing (metal) shell respectively.
For the ease of adjusting the gap of thrust bearing, also comprise the adjusting pad be arranged in upper bearing (metal) shell, the upper end of described adjusting pad contacts with the lower end, outer ring of thrust bearing, and its lower end contacts with the upper end of lower bearing shell.
The beneficial effects of the utility model are: during main axis, it drives upper journal bearing inner sleeve to rotate relative to upper bearing (metal) shell and lower bearing shell with lower radial bearing inner sleeve, upper bearing (metal) shell and lower bearing shell are threaded connection and utilize thrust bearing and main shaft to fix, can bear larger axial force, therefore stable drive, use are reliably.Because omitted herein the mode that traditional bearing outside is connected with cartridge housing, structure is simple, is convenient to processing and manufacturing, reduces cost, is convenient to workman's installation.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
In figure, 1. journal bearing inner sleeve 4. thrust bearing 5. adjusting pad 6. hold-down nut 7. lower bearing shell 8. lower radial bearing inner sleeve on main shaft 2. upper bearing (metal) shell 3..
Detailed description of the invention
Be described further below in conjunction with accompanying drawing 1 pair of the utility model.
The integrated bearing housing of this helicoid hydraulic motor, comprise main shaft 1, be fixed on the upper journal bearing inner sleeve 3 of main shaft 1 upper end, be fixed on the lower radial bearing inner sleeve 8 of main shaft 1 lower end, the lower bearing shell 7 being plugged in the upper bearing (metal) shell 2 on bearing inner sleeve 3 and being plugged on bearing inner sleeve 8, the lower end of upper bearing (metal) shell 2 is fixed in lower bearing shell 7 upper end by threaded engagement, main shaft 1 is provided with thrust bearing 4, the inner ring lower end of thrust bearing 4 contacts with the hold-down nut 6 be combined on main shaft 1, its inner ring upper end and upper end, outer ring contact with upper journal bearing inner sleeve 3 and upper bearing (metal) shell 2 respectively.When main shaft 1 rotates, it drives upper journal bearing inner sleeve 3 to rotate relative to upper bearing (metal) shell 2 and lower bearing shell 7 with lower radial bearing inner sleeve 8, upper bearing (metal) shell 2 and lower bearing shell 7 are threaded connection and utilize thrust bearing 4 to fix with main shaft 1, can bear larger axial force, therefore stable drive, use are reliably.Because omitted herein the mode that traditional bearing outside is connected with cartridge housing, structure is simple, is convenient to processing and manufacturing, reduces cost, is convenient to workman's installation.
Can also comprise the adjusting pad 5 be arranged in upper bearing (metal) shell 2, the upper end of adjusting pad 5 contacts with the lower end, outer ring of thrust bearing 4, and its lower end contacts with the upper end of lower bearing shell 7.Namely can be adjusted the gap of thrust bearing 4 by the thickness adjusting adjusting pad 5, guarantee the work of thrust bearing 4 gapless, improve its application life.
Claims (2)
1. the integrated bearing housing of a helicoid hydraulic motor, it is characterized in that: comprise main shaft (1), be fixed on the upper journal bearing inner sleeve (3) of main shaft (1) upper end, be fixed on the lower radial bearing inner sleeve (8) of main shaft (1) lower end, the lower bearing shell (7) being plugged in the upper bearing (metal) shell (2) on bearing inner sleeve (3) and being plugged on bearing inner sleeve (8), the lower end of upper bearing (metal) shell (2) is fixed in described lower bearing shell (7) upper end by threaded engagement, described main shaft (1) is provided with thrust bearing (4), the inner ring lower end of described thrust bearing (4) contacts with the hold-down nut (6) be combined on main shaft (1), its inner ring upper end and upper end, outer ring contact with upper journal bearing inner sleeve (3) and upper bearing (metal) shell (2) respectively.
2. the integrated bearing housing of helicoid hydraulic motor according to claim 1, it is characterized in that: also comprise the adjusting pad (5) be arranged in upper bearing (metal) shell (2), the upper end of described adjusting pad (5) contacts with the lower end, outer ring of thrust bearing (4), and its lower end contacts with the upper end of lower bearing shell (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801892.0U CN204343973U (en) | 2014-12-18 | 2014-12-18 | The integrated bearing housing of helicoid hydraulic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420801892.0U CN204343973U (en) | 2014-12-18 | 2014-12-18 | The integrated bearing housing of helicoid hydraulic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204343973U true CN204343973U (en) | 2015-05-20 |
Family
ID=53227248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420801892.0U Active CN204343973U (en) | 2014-12-18 | 2014-12-18 | The integrated bearing housing of helicoid hydraulic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204343973U (en) |
-
2014
- 2014-12-18 CN CN201420801892.0U patent/CN204343973U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |