CN204150977U - The multistage boomer that a kind of amplitude variation trolley is special - Google Patents
The multistage boomer that a kind of amplitude variation trolley is special Download PDFInfo
- Publication number
- CN204150977U CN204150977U CN201420524913.9U CN201420524913U CN204150977U CN 204150977 U CN204150977 U CN 204150977U CN 201420524913 U CN201420524913 U CN 201420524913U CN 204150977 U CN204150977 U CN 204150977U
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- China
- Prior art keywords
- ratchet
- boomer
- guide groove
- hole
- bearing pin
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- Withdrawn - After Issue
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Abstract
The utility model relates to Architectural Equipment field, specifically refers to comprise adapter plate, one-level boomer and secondary boomer by the multistage boomer that a kind of amplitude variation trolley is special; Described one-level boomer comprises the first ratchet, the second ratchet, the first stay bearing plate, the second stay bearing plate, the first attaching parts, the second attaching parts, tubulose ratchet shaft, the first bearing pin, the second bearing pin and ratchet locking rod; Described secondary boomer comprises secondary boomer body, the first fixed pulley, the second fixed pulley, movable pulley device and movable pulley blocking device; The special multistage boomer mechanism of a kind of amplitude variation trolley disclosed in the utility model is simple, and less to the minimum tensioning distance of steel rope, safety is higher.
Description
Technical field
The utility model relates to Architectural Equipment field, specifically refers to the multistage boomer that a kind of amplitude variation trolley is special.
Background technology
Along with the development of society and the continuous propelling of urbanization, building industry is developed rapidly, tower crane is widely used, but various tower crane accident also emerges in an endless stream, amplitude variation trolley is related to the structure of safety of tower crane safety as in tower crane technology is particularly important, and wherein boomer is for carrying out the key device that elasticity regulates to steel rope in amplitude variation trolley.
The structural representation of traditional boomer, this boomer mainly includes two symmetrical ratchets, first bearing pin, second bearing pin, support and tubulose ratchet shaft, ratchet is welded on ratchet shaft, wirerope-winding is on tubulose ratchet shaft, ratchet offers the first bearing pin guide groove guide groove and second pin shaft hole of vertical direction, when left-hand revolution ratchet, heteromorphic teeth on ratchet can promote the first bearing pin and move along the top dead point of the first bearing pin guide groove, when reaching requirement to the pretension of steel rope, stop operating tubulose ratchet shaft, first bearing pin just falls back to the bottom dead point of the first bearing pin guide groove and the heterodont blocked on ratchet, now the second bearing pin is inserted in the second pin shaft hole and carry out final tight rope protection.
The advantage of the boomer of above-mentioned transmission when once the first bearing pin lost efficacy the second bearing pin can prevent ratchet from clockwise revolution action occurring under the effect of the tensile force of steel rope equally, cause boomer to lose efficacy.
But the minimum tight rope length of this boomer is relevant with the minimum locking angle of this boomer, such as: minimum locking angle is a, the angle A to ratchet left-hand revolution when to carry out tensioning work to steel rope, now do not reach desired tension effect, if but again left-hand revolution a time again can tensioning excessive, good tensioning cannot be carried out to steel rope at boomer traditional in such cases.
Utility model content
For problems of the prior art, the utility model is intended to the special multistage boomer of openly a kind of amplitude variation trolley.
For solving the problem, the utility model provides following technical scheme:
The multistage boomer that a kind of amplitude variation trolley is special, comprise adapter plate, one-level boomer and secondary boomer, described secondary boomer comprises secondary boomer body, the first fixed pulley, the second fixed pulley, movable pulley device and movable pulley blocking device; Described secondary boomer body includes base plate, the first side plate, the second side plate and top board; Described secondary boomer connects with on described adapter plate by described bed bolt; The first described side plate is parallel to each other and vertical Yu described base plate with the second described side plate; Described top board is parallel to described base plate; The first described side plate is provided with the first axis hole, the second axis hole and the first guide groove; The second described side plate is provided with Triaxial hole, the 4th axis hole and the second guide groove; The central part of described top board is provided with pilot hole; The first described fixed pulley comprises the first fixed pulley installation shaft and is installed on the first fixed pulley in fixed pulley installation shaft; One end of the first described fixed pulley installation shaft is installed in the first described axis hole, and the other end of the installation shaft of the first described fixed pulley is installed in described Triaxial hole; The second described fixed pulley comprises the second fixed pulley installation shaft and is installed on the second fixed pulley in the second fixed pulley installation shaft; One end of the second described fixed pulley installation shaft is installed in the second described axis hole, and the other end of the second described fixed pulley installation shaft is installed in described Triaxial hole; Described movable pulley device comprises movable pulley installation shaft and is provided with the movable pulley in movable pulley installation shaft; One end of described movable pulley installation shaft is provided with in the first described guide groove, and the other end of described movable pulley installation shaft is installed in the second described guide groove; Described movable pulley blocking device comprises movable pulley erecting frame, guide spiro rod and jam nut; Described movable pulley is fixed on described movable pulley erecting frame; One end of described guide spiro rod is connected with described movable pulley device; The other end of described guide spiro rod to be socketed in described pilot hole and to extend to the outside of described top board; Described jam nut to be installed on described guide spiro rod and to be close to the lateral surface of described top board; Described one-level boomer comprises the first ratchet, the second ratchet, the first stay bearing plate, the second stay bearing plate, the first attaching parts, the second attaching parts, tubulose ratchet shaft, the first bearing pin, the second bearing pin and ratchet locking rod; The first described ratchet, the second ratchet, the first stay bearing plate, the second stay bearing plate are parallel to each other and all perpendicular to described adapter plate.
The first described support and the second described support are respectively equipped with symmetrical ratchet axis hole, the first bearing pin guide groove, the second pin shaft hole and several bolts hole; The first described attaching parts and the second described attaching parts are the attaching parts that cross section is L-type; The first described attaching parts and the second described attaching parts are all symmetrically distributed with some bolts hole; The first described support and the first described attaching parts are bolted; The second described support and the second described attaching parts are bolted; The first described attaching parts and the second described attaching parts are installed on described adapter plate respectively by bolt; The described front portion of tubulose ratchet shaft and the tube wall at middle part are respectively equipped with through hole; Described ratchet locking rod is installed in the through hole of described tubulose ratchet shaft; One end of described ratchet locking rod is provided with stopper; The other end of described ratchet locking rod is provided with outside thread; The external thread section of described ratchet locking rod is provided with stop nut; The first described bearing pin is installed in the first described bearing pin guide groove; The second described bearing pin is installed in the second described pin shaft hole; The first described ratchet and the second described ratchet are fixedly welded on described tubulose ratchet shaft; The two ends of described tubulose ratchet shaft are installed on the ratchet axis hole on the first described stay bearing plate and the second stay bearing plate respectively.
The first described guide groove and the second described guide groove are kidney-shaped guide groove; The guide direction of the first described guide groove and the second described guide groove is perpendicular to described top board.
The first described bearing pin guide groove is kidney-shaped guide groove; The guide direction of the first described bearing pin guide groove is parallel to described adapter plate.
The width of the first described guide groove and the second described guide groove is greater than the diameter of described movable pulley installation shaft.
The diameter of described pilot hole is greater than the diameter of described guide bolt; The diameter of described pilot hole is less than the external circle diameter of described jam nut.
The diameter of the first described bearing pin and the equal diameters of the second described bearing pin; The width of the first described bearing pin guide groove is greater than the diameter of the first described bearing pin; The diameter of the second described pin shaft hole is greater than the diameter of the second described bearing pin.
The diameter of the through hole of the front portion of described tubulose ratchet shaft is greater than the diameter of described ratchet locking rod.
The first described ratchet is all identical with the number of teeth with the profile of tooth of the second ratchet.
The first described ratchet is identical with the size and shape of the second ratchet.
Beneficial effect: the special multistage boomer mechanism of a kind of amplitude variation trolley of the present utility model is simple, less to the minimum tensioning distance of steel rope, safety is higher.
Accompanying drawing explanation
Fig. 1 is perspective view of the present utility model.
Fig. 2 is the structural representation of one-level boomer of the present utility model.
Fig. 3 is the decomposing schematic representation of secondary boomer of the present utility model.
Description of reference numerals: adapter plate 1, one-level boomer 2, first ratchet 211, second ratchet 212, first stay bearing plate 221, second stay bearing plate 222, first attaching parts 231, second attaching parts 232, tubulose ratchet shaft 24, first bearing pin 251, second bearing pin 252, ratchet locking rod 26, secondary boomer 3, secondary boomer body 31, base plate 311, the first side plate 312, second side plate 313, top board 314, first fixed pulley 32, second fixed pulley 33, movable pulley device 34, movable pulley blocking device 35, steel rope 4.
Detailed description of the invention
Below in conjunction with Figure of description and embodiment, detailed description of the invention of the present utility model is described in further detail:
With reference to the multistage boomer that a kind of amplitude variation trolley shown in Fig. 1, Fig. 2 and Fig. 3 is special, comprise adapter plate 1, one-level boomer 2 and secondary boomer 3, described secondary boomer 3 comprises secondary boomer body 31, first fixed pulley 32, second fixed pulley 33, movable pulley device 34 and movable pulley blocking device 35; Described secondary boomer body 31 includes base plate 311, first side plate 312, second side plate 313 and top board 314; Described secondary boomer 3 is connected on described adapter plate 1 by described base plate 311 bolt; Described first side plate 312 is parallel to each other with the second described side plate 313 and perpendicular to described base plate 311; Described top board 314 is parallel to described base plate 311; The first described side plate 312 is provided with the first axis hole, the second axis hole and the first guide groove; The second described side plate 313 is provided with Triaxial hole, the 4th axis hole and the second guide groove; The central part of described top board 314 is provided with pilot hole; The first described fixed pulley 32 comprises the first fixed pulley installation shaft and is installed on the first fixed pulley in fixed pulley installation shaft; One end of the first described fixed pulley installation shaft is installed in the first described axis hole, and the other end of the installation shaft of the first described fixed pulley is installed in described Triaxial hole; The second described fixed pulley 33 comprises the second fixed pulley installation shaft and is installed on the second fixed pulley in the second fixed pulley installation shaft; One end of the second described fixed pulley installation shaft is installed in the second described axis hole, and the other end of the second described fixed pulley installation shaft is installed in described Triaxial hole; Described movable pulley device 34 comprises movable pulley installation shaft and is provided with the movable pulley in movable pulley installation shaft; One end of described movable pulley installation shaft is installed in the first described guide groove, and the other end of described movable pulley installation shaft is installed in the second described guide groove; Described movable pulley blocking device 35 comprises movable pulley erecting frame, guide spiro rod and jam nut; Described movable pulley is fixed on described movable pulley erecting frame; One end of described guide spiro rod is connected with described movable pulley device 34; The other end of described guide spiro rod to be socketed in described pilot hole and to extend to the outside of described top board 314; Described jam nut to be installed on described guide spiro rod and to be close to the lateral surface of described top board 314; Described one-level boomer 2 comprises the first ratchet 211, second ratchet 212, first stay bearing plate 221, second stay bearing plate 222, first attaching parts 231, second attaching parts 232, tubulose ratchet shaft 24, first bearing pin 251, second bearing pin 252 and ratchet locking rod 26; The first described ratchet 211, second ratchet 212, first stay bearing plate 221, second stay bearing plate 222 is parallel to each other and all perpendicular to described adapter plate 1; The first described support and the second described support are respectively equipped with symmetrical ratchet axis hole, the first bearing pin guide groove, the second pin shaft hole and several bolts hole; The first described attaching parts 231 and the second described attaching parts 232 are the attaching parts that cross section is L-type; The first described attaching parts 231 and the second described attaching parts 232 are all symmetrically distributed with some bolts hole; The first described support and the first described attaching parts 231 are bolted; The second described support and the second described attaching parts 232 are bolted; The first described attaching parts 231 is installed on described adapter plate 1 with the second described attaching parts 232 respectively by bolt; The described front portion of tubulose ratchet shaft 24 and the tube wall at middle part are respectively equipped with through hole; Described ratchet locking rod 26 is installed in the through hole of described tubulose ratchet shaft 24; One end of described ratchet locking rod 26 is provided with stopper; The other end of described ratchet locking rod 26 is provided with outside thread; The external thread section of described ratchet locking rod 26 is provided with stop nut; The first described bearing pin 251 is installed in the first described bearing pin guide groove; The second described bearing pin 252 is installed in the second described pin shaft hole; The first described ratchet 211 and the second described ratchet 212 are fixedly welded on described tubulose ratchet shaft 24; The two ends of described tubulose ratchet shaft 24 are installed on the ratchet axis hole on the first described stay bearing plate 221 and the second stay bearing plate 222 respectively; The first described guide groove and the second described guide groove are kidney-shaped guide groove; The guide direction of the first described guide groove and the second described guide groove is perpendicular to described top board 314; The first described bearing pin guide groove is kidney-shaped guide groove; The guide direction of the first described bearing pin guide groove is parallel to described adapter plate 1; The width of the first described guide groove and the second described guide groove is greater than the diameter of described movable pulley installation shaft; The diameter of described pilot hole is greater than the diameter of described guide bolt; The diameter of described pilot hole is less than the external circle diameter of described jam nut; The diameter of the first described bearing pin 251 and the equal diameters of the second described bearing pin 252; The width of the first described bearing pin guide groove is greater than the diameter of the first described bearing pin 251; The diameter of the second described pin shaft hole is greater than the diameter of the second described bearing pin 252; The diameter of the through hole of the front portion of described tubulose ratchet shaft 24 is greater than the diameter of described ratchet locking rod 26; The first described ratchet 211 is all identical with the number of teeth with the profile of tooth of the second ratchet 212; The first described ratchet 211 is identical with the size and shape of the second ratchet 212.
Concrete operation method of the present utility model is as follows;
Make described ratchet around described tubulose ratchet shaft 24 left-hand revolution by pulling described ratchet locking rod 26, play the one-level tensioning to steel rope 4, when the minimum anglec of rotation of described ratchet cannot meet the tensioning to steel rope 4, the jam nut described in accessory appliances rotation can be utilized, described movable pulley is moved to described top board 314 side, secondary tensioning is carried out to steel rope 4.
The above, it is only preferred embodiment of the present utility model, not any restriction is made to technical scope of the present utility model, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of the technical solution of the utility model.
Claims (10)
1. the multistage boomer that an amplitude variation trolley is special, comprise adapter plate, one-level boomer and secondary boomer, it is characterized in that: described secondary boomer comprises secondary boomer body, the first fixed pulley, the second fixed pulley, movable pulley device and movable pulley blocking device; Described secondary boomer body includes base plate, the first side plate, the second side plate and top board; Described secondary boomer is connected on described adapter plate by described bed bolt; The first described side plate and the second described side plate are parallel to each other and perpendicular to described base plate; Described top board is parallel to described base plate; The first described side plate is provided with the first axis hole, the second axis hole and the first guide groove; The second described side plate is provided with Triaxial hole, the 4th axis hole and the second guide groove; The central part of described top board is provided with pilot hole; The first described fixed pulley comprises the first fixed pulley installation shaft and is installed on the first fixed pulley in fixed pulley installation shaft; One end of the first described fixed pulley installation shaft is installed in the first described axis hole, and the other end of the installation shaft of the first described fixed pulley is installed in described Triaxial hole; The second described fixed pulley comprises the second fixed pulley installation shaft and is installed on the second fixed pulley in the second fixed pulley installation shaft; One end of the second described fixed pulley installation shaft is installed in the second described axis hole, and the other end of the second described fixed pulley installation shaft is installed in described Triaxial hole; Described movable pulley device comprises movable pulley installation shaft and is provided with the movable pulley in movable pulley installation shaft; One end of described movable pulley installation shaft is installed in the first described guide groove, and the other end of described movable pulley installation shaft is installed in the second described guide groove; Described movable pulley blocking device comprises movable pulley erecting frame, guide spiro rod and jam nut; Described movable pulley is fixed on described movable pulley erecting frame; One end of described guide spiro rod is connected with described movable pulley device bolt; The other end of described guide spiro rod to be socketed in described pilot hole and to extend to the outside of described top board; Described jam nut to be installed on described guide spiro rod and to be close to the lateral surface of described top board; Described one-level boomer comprises the first ratchet, the second ratchet, the first stay bearing plate, the second stay bearing plate, the first attaching parts, the second attaching parts, tubulose ratchet shaft, the first bearing pin, the second bearing pin and ratchet locking rod; The first described ratchet, the second ratchet, the first stay bearing plate, the second stay bearing plate are parallel to each other and all perpendicular to described adapter plate.
2. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 is special, is characterized in that: the first described support and the second described support are respectively equipped with symmetrical ratchet axis hole, the first bearing pin guide groove, the second pin shaft hole and several bolts hole; The first described attaching parts and the second described attaching parts are the attaching parts that cross section is L-type; The first described attaching parts and the second described attaching parts are all symmetrically distributed with some bolts hole; The first described support and the first described attaching parts are bolted; The second described support and the second described attaching parts are bolted; The first described attaching parts and the second described attaching parts are installed on described adapter plate respectively by bolt; The described front portion of tubulose ratchet shaft and the tube wall at middle part are respectively equipped with through hole; Described ratchet locking rod is installed in the through hole of described tubulose ratchet shaft; One end of described ratchet locking rod is provided with stopper; The other end of described ratchet locking rod is provided with outside thread; The external thread section of described ratchet locking rod is provided with stop nut; The first described bearing pin is installed in the first described bearing pin guide groove; The second described bearing pin is installed in the second described pin shaft hole; The first described ratchet and the second described ratchet are fixedly welded on described tubulose ratchet shaft; The two ends of described tubulose ratchet shaft are installed on the ratchet axis hole on the first described stay bearing plate and the second stay bearing plate respectively.
3. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 is special, is characterized in that: the first described guide groove and the second described guide groove are kidney-shaped guide groove; The guide direction of the first described guide groove and the second described guide groove is perpendicular to described top board.
4. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 or 2 is special, is characterized in that: the first described bearing pin guide groove is kidney-shaped guide groove; The guide direction of the first described bearing pin guide groove is parallel to described adapter plate.
5. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 is special, is characterized in that: the width of the first described guide groove and the second described guide groove is greater than the diameter of described movable pulley installation shaft.
6. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 is special, is characterized in that: the diameter of described pilot hole is greater than the diameter of described guide bolt; The diameter of described pilot hole is less than the external circle diameter of described jam nut.
7. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 or 2 is special, is characterized in that: the diameter of the first described bearing pin and the equal diameters of the second described bearing pin; The width of the first described bearing pin guide groove is greater than the diameter of the first described bearing pin; The diameter of the second described pin shaft hole is greater than the diameter of the second described bearing pin.
8. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 or 2 is special, is characterized in that: the diameter of the through hole of the front portion of described tubulose ratchet shaft is greater than the diameter of described ratchet locking rod.
9. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 or 2 is special, is characterized in that: the first described ratchet is all identical with the number of teeth with the profile of tooth of the second ratchet.
10. the multistage boomer that a kind of amplitude variation trolley as claimed in claim 1 or 2 is special, is characterized in that: the first described ratchet is identical with the size and shape of the second ratchet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524913.9U CN204150977U (en) | 2014-09-06 | 2014-09-06 | The multistage boomer that a kind of amplitude variation trolley is special |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420524913.9U CN204150977U (en) | 2014-09-06 | 2014-09-06 | The multistage boomer that a kind of amplitude variation trolley is special |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204150977U true CN204150977U (en) | 2015-02-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420524913.9U Withdrawn - After Issue CN204150977U (en) | 2014-09-06 | 2014-09-06 | The multistage boomer that a kind of amplitude variation trolley is special |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204150977U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883643A (en) * | 2014-09-06 | 2016-08-24 | 蚌埠市江南建筑机械有限公司 | Multistage euphroe for luffing trolley |
-
2014
- 2014-09-06 CN CN201420524913.9U patent/CN204150977U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105883643A (en) * | 2014-09-06 | 2016-08-24 | 蚌埠市江南建筑机械有限公司 | Multistage euphroe for luffing trolley |
| CN105883643B (en) * | 2014-09-06 | 2018-06-26 | 蚌埠市江南建筑机械有限公司 | A kind of dedicated multistage euphroe of amplitude variation trolley |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150211 Effective date of abandoning: 20180626 |