CN204057818U - Universal rotational backgear - Google Patents
Universal rotational backgear Download PDFInfo
- Publication number
- CN204057818U CN204057818U CN201420507209.2U CN201420507209U CN204057818U CN 204057818 U CN204057818 U CN 204057818U CN 201420507209 U CN201420507209 U CN 201420507209U CN 204057818 U CN204057818 U CN 204057818U
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- CN
- China
- Prior art keywords
- bearing pin
- pin
- shaft
- support
- pulley
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
Universal rotational backgear, by bearing pin I, pin shaft II, support, pin shaft III, big nut, center cross, adapter shaft, large pulley, bearing pin IV, supporting seat, link span, small sheave, pulley erecting frame forms, it is characterized in that supporting seat, link span, support is by bearing pin I, pin shaft II chain connection, on support, medium position arranges small sheave, small sheave is rack-mount by pin shaft III, the other end of support is provided with center cross, adapter shaft one end is connected on the big nut of survey in center cross, the adapter shaft other end is connected to pulley erecting frame, pulley erecting frame use bearing pin IV large pulley is installed, the beneficial effects of the utility model are that structure is simple, universal rotational can be realized according to the Impact direction of steel rope, the wearing and tearing decreasing steel rope are stressed, improve the service life of steel rope, assembling is simple, safe and reliable.
Description
Technical field
The utility model relates to mechanical equipment technical field, is more particularly a kind of universal rotational backgear.
Background technology
Rotary drilling rig is the engineering equipment of a kind of pouring pile hole construction, mainly contains get off walking and the work two large divisions that gets on the bus.Rotary drilling rig main working parts comprises mast, luffing mechanism, major-minor elevator, cathead, hangs the parts compositions such as drilling rod.The steel rope hanging drilling rod is connected on master winch by cathead, backgear, and backgear is assembled on mast, plays guiding and spacing effect to steel rope.At present, in existing backgear structure, large pulley only can rotate, and can not realize universal rotational, this configuration increases the stressed of steel rope according to the stressed of steel rope, has shortened the service life of steel rope, has added use cost.
Summary of the invention
For solving the problem, it is simple that the utility model devises a kind of structure, the universal rotational backgear of universal rotational can be realized according to the Impact direction of steel rope, its technical scheme is: described universal rotational backgear is by bearing pin I, pin shaft II, support, pin shaft III, big nut, center cross, adapter shaft, large pulley, bearing pin IV, supporting seat, link span, small sheave, pulley erecting frame forms, it is characterized in that supporting seat, link span, support is by bearing pin I, pin shaft II chain connection, on support, medium position arranges small sheave, small sheave is rack-mount by pin shaft III, the other end of support is provided with center cross, adapter shaft one end is connected on the big nut of survey in center cross, the adapter shaft other end is connected to pulley erecting frame, pulley erecting frame use bearing pin IV large pulley is installed.
Bearing pin I described in the utility model, pin shaft II, pin shaft III, bearing pin IV, is characterized in that bearing pin I, pin shaft II, pin shaft III, bearing pin IV have oil hole.
Adapter shaft described in the utility model, it is characterized in that adapter shaft is stepped shaft, adapter shaft one end is provided with screw thread, is threaded with big nut.
The beneficial effects of the utility model are that universal rotational backgear structure is simple, and can realize universal rotational according to the Impact direction of steel rope, the wearing and tearing decreasing steel rope are stressed, improve the service life of steel rope, and assembling is simple, safe and reliable.
accompanying drawing illustrates:
Accompanying drawing 1 is sectional structure schematic diagram of the present utility model;
Accompanying drawing 2 is structural representations of the present utility model; In accompanying drawing:
1. bearing pin I, 2. pin shaft II, 3. support, 4. pin shaft III, 5. big nut, 6. center cross, 7. adapter shaft, 8. large pulley, 9. bearing pin IV, 10. supporting seat, 11. link spans, 12. small sheaves, 13. pulley erecting frames.
detailed description of the invention:
By reference to the accompanying drawings the utility model is described in further detail, so that the public grasps implementation method of the present utility model better, the utility model specific embodiment is: described universal rotational backgear is by bearing pin I 1, pin shaft II 2, support 3, pin shaft III 4, big nut 5, center cross 6, adapter shaft 7, large pulley 8, bearing pin IV 9, supporting seat 10, link span 11, small sheave 12, pulley erecting frame 13 forms, it is characterized in that supporting seat 10, link span 11, support 3 is by bearing pin I 1, pin shaft II 2 chain connection, on support 3, medium position arranges small sheave 12, small sheave 12 is arranged on support 3 by pin shaft III 4, the other end of support 3 is provided with center cross 6, adapter shaft 7 one end is connected on the big nut 5 of survey in center cross 6, adapter shaft 7 other end is connected to pulley erecting frame 13, pulley erecting frame 13 use bearing pin IV 9 large pulley 8 is installed.
Bearing pin I 1 described in the utility model, pin shaft II 2, pin shaft III 4, bearing pin IV 9, is characterized in that bearing pin I 1, pin shaft II 2, pin shaft III 4, bearing pin IV 9 have oil hole.
Adapter shaft 7 described in the utility model, it is characterized in that adapter shaft 7 is for stepped shaft, adapter shaft 7 one end is provided with screw thread, is threaded with big nut 5.
Universal rotational backgear is swung up and down by the relative mast of bearing pin I 1, swung by pin shaft II 2, small sheave by pin shaft III 4 with pin shaft III 4 for S. A. rotation, large pulley realizes the rotation of all directions by center cross 6, adapter shaft, bearing pin IV 9.
Claims (3)
1. universal rotational backgear, by bearing pin I (1), pin shaft II (2), support (3), pin shaft III (4), big nut (5), center cross (6), adapter shaft (7), large pulley (8), bearing pin IV (9), supporting seat (10), link span (11), small sheave (12), pulley erecting frame (13) forms, it is characterized in that supporting seat (10), link span (11), support (3) is by bearing pin I (1), pin shaft II (2) chain connection, the upper medium position of support (3) arranges small sheave (12), small sheave (12) is arranged on support (3) by pin shaft III (4), the other end of support (3) is provided with center cross (6), adapter shaft (7) one end is connected on the big nut (5) of survey in center cross (6), adapter shaft (7) other end is connected to pulley erecting frame (13), the upper bearing pin IV (9) that uses of pulley erecting frame (13) installs large pulley (8).
2. universal rotational backgear according to claim 1, is characterized in that bearing pin I (1), pin shaft II (2), pin shaft III (4), bearing pin IV (9) have oil hole.
3. universal rotational backgear according to claim 1, it is characterized in that adapter shaft (7) is stepped shaft, adapter shaft (7) one end is provided with screw thread, is threaded with big nut (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507209.2U CN204057818U (en) | 2014-09-04 | 2014-09-04 | Universal rotational backgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420507209.2U CN204057818U (en) | 2014-09-04 | 2014-09-04 | Universal rotational backgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204057818U true CN204057818U (en) | 2014-12-31 |
Family
ID=52199373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420507209.2U Expired - Fee Related CN204057818U (en) | 2014-09-04 | 2014-09-04 | Universal rotational backgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204057818U (en) |
-
2014
- 2014-09-04 CN CN201420507209.2U patent/CN204057818U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 Termination date: 20150904 |
|
| EXPY | Termination of patent right or utility model |