CN101633480A - Brace bar attached to bilateral-rack inclined sides - Google Patents
Brace bar attached to bilateral-rack inclined sides Download PDFInfo
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- CN101633480A CN101633480A CN200910158798A CN200910158798A CN101633480A CN 101633480 A CN101633480 A CN 101633480A CN 200910158798 A CN200910158798 A CN 200910158798A CN 200910158798 A CN200910158798 A CN 200910158798A CN 101633480 A CN101633480 A CN 101633480A
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Abstract
The invention relates to a brace bar attached to bilateral-rack inclined sides. A locking rack is engaged with teeth on both sides of a rack shaft, which avoids imbalance caused by force exerted on teeth on only one side. Each tooth outline comprises two equal sides of an isosceles triangle and a small arc tangent to the two equal sides, and all the tooth outlines are evenly arranged along the axial direction and of equal dimensions; the section of the inner cavity of a rack shaft seat, which is perpendicular to axes of the anchor plate-end bilateral rack shaft, is an isosceles trapezoid, and the two equal sides of the isosceles trapezoid are respectively matched with the inclined sides of the locking rack with equal inclination; the section of the cavity, which is parallel to the axes is a rectangle, and the vertical sides of the rectangle are matched with the vertical sides of the locking rack; the tail part of the anchor plate-end bilateral rack shaft is provided with an isosceles trapezoid projection, and two inclined sides formed by the two equal sides of the projection are matched with the inclined sides of a wedge briquette with equal inclination. The inclined sides on the top of an inclined-side locking rod are matched with the inclined sides on the top of the locking rack with equal inclination. A rectangular notch on a welding transition block is matched with a rectangular notch of a spherical-outside bearing plate, and a rectangular projection thereof is matched with a small rectangular groove at the back end of a wedge briquette fixing seat.
Description
Affiliated technical field
The present invention relates to the length adjustment latching device that uses on a kind of tower machine, adopt the double sided rack engagement to add the adjustment structure of inclined-plane positioning and locking, reliable lock, bearing capacity significantly increases.
Background technology
Brace bar attached is to be fixing design-calculated device between tower machine and the building masonry wall, be directly connected to the safe in utilization of tower machine, strut is used helicitic texture more at present, often dismantle in the open that the locking of screw thread is a global problem under the environment, its intrinsic gap can progressively increase along with corrosion and wearing and tearing, the loosening easily huge impact load that produces of screw thread under the dynamic load effect of high-altitude high wind; Simultaneously length reaches tens meters strut and the time space dislocation is installed in the high-altitude is difficult to avoid, produce the additional erection stress of heavy handled, a lot of great tower machine safety misadventures are all relevant with the improper damage of helicitic texture, also improve to some extent in the long-term use, but still there is not breakthrough, this also is the major reason that auxilliary wall strut does not have national standard so far, and intractable has an accident.The user wishes to design and a kind ofly can satisfy the aloft work requirement and without the length stepless regulating mechanism of screw thread, must reliable lock, and easy for installation.
Summary of the invention
Not high for overcoming the reliable lock that existing brace bar attached use threaded adjusting causes, be subjected to force unbalance during one-sided tooth bar engagement, the shortcoming that bearing load is little the invention provides a kind of brace bar attached to bilateral-rack inclined sides, and is simple and reliable for structure, bearing capacity is big.
The technical solution used in the present invention is: adopting has level and the stepless two-stage control method that combines, be that large-scale length adjustment adopts double sided rack while ingear that a grade slide control is arranged, eliminate the gap between the tooth bar with oblique mechanism then and realize step-less adjustment in the single tooth pitch length, but corrosion and the wearing and tearing of automatic compensation in using.
1, a kind of brace bar attached to bilateral-rack inclined sides, by tower machine end double sided rack axle (1), tooth bar axle bed (2), locking axle bed (3), transition gusset piece (4), lattice strut (5), anchor plate-end double sided rack axle (6), wedge shape briquetting permanent seat (7), bearing with spherical outside surface adapter plate (8), locking rack (9) connects angle steel (10), screw retention plate (11), lock screw (12), anchor slab (13), inclined-plane locking lever (14), inclined-plane locking lever retracing spring (15), rack shaft spline piece (16), threaded mandrel spline plate (17), wedge shape briquetting (18), welding transition piece (19), the locking lever screw (20) that resets is formed, locking rack (9) respectively with tower machine end double sided rack axle (1), the tooth of anchor plate-end double sided rack axle (6) two sides is meshing with each other, and the shape of tooth is consistent with size, and rectangular distribution vertically, profile of tooth constitutes by two waists of equicrural triangle with the tangent roundlet arc of two waists; Tooth bar axle bed (2) inner chamber is an isosceles trapezoid perpendicular to the cross section of anchor plate-end double sided rack axle (6) axis, and its two waist contacts with the prism of locking rack (9) respectively, and gradient equates; The cross section that tooth bar axle bed (2) inner chamber is parallel to anchor plate-end double sided rack axle (6) axis is a rectangle, and its vertical side contacts with the vertical side of locking rack (9); Anchor plate-end double sided rack axle (6) afterbody has the projection of an isosceles echelon form, and the double inclined plane that its two waist forms matches the angle unanimity with the prism of wedge shape briquetting (18).
2, tower machine end double sided rack axle (1) and anchor plate-end double sided rack axle (6) are 4 rectangles that the angle is a fillet perpendicular to the cross-sectional plane of axis, and fillet is concentric with the circular hole on the tooth bar axle bed (2), and equal and opposite in direction is a bearing fit between axle and the hole.
3, the inclined-plane, top of inclined-plane locking lever (14) equates with inclined-plane, the top gradient of locking rack (9), locking axle bed (3) is fixed on the tooth bar axle bed (2), inclined-plane locking lever (14) is a bearing fit with the hole of locking on the axle bed (3), the inclined-plane, top of inclined-plane locking lever (14) matches with the inclined-plane, top of locking rack (9) during locking, and the top end face of inclined-plane locking lever (14) overlaps with locking axle bed (3) side when regulating length.
4, threaded mandrel spline plate (17) is fixed in locking axle bed (3), and locking lever retracing spring (15) one ends in inclined-plane contact with step end face on the inclined-plane locking lever (14), and the other end contacts with threaded mandrel spline plate (17).
5, before and after the wedge shape briquetting permanent seat (7) two rectangular channels are arranged, its front portion contacts with the vertical side of wedge shape briquetting (18) than two vertical side of large rectangle groove.
6, screw retention plate (11) is a bearing fit with wedge shape briquetting permanent seat (7) top chute, and lock screw (12) is pressed in wedge shape briquetting (18) end face.
7, the rectangular indentation on the welding transition piece (19) matches with the rectangular indentation of bearing with spherical outside surface adapter plate (8) front end, its rectangular preiection and wedge shape briquetting permanent seat (7) rear end little rectangular channel match, the wedge shape briquetting permanent seat (7) that connects the angle steel (10) and the left and right sides links, and increases the intensity and the rigidity of mechanism.
The invention has the beneficial effects as follows: engagement when adopting double sided rack, it is unreliable to have overcome helicitic texture, and stressed unbalanced shortcoming during one-sided tooth bar engagement has significantly increased the reliability and the load-carrying capacity of regulating mechanism, and is simple in structure.
Description of drawings
Below in conjunction with Figure of description product of the present invention is described,
Fig. 1 is a full structural representation of the present invention.
Fig. 2 is scheme drawings such as double sided rack axle of the present invention, tooth bar axle bed, locking rack.
Fig. 3 is inner structure generalized sections such as tooth bar axle bed of the present invention, locking rack, locking axle bed.
Fig. 4 is the wedge shape briquetting icocline face lock portion scheme drawing at rear portion of the present invention.
Fig. 5 is the interior details scheme drawings such as wedge shape briquetting at rear portion of the present invention.
Among the figure: 1. tower machine end double sided rack axle, 2. tooth bar axle bed, 3. locking axle bed, 4. transition gusset piece, 5. lattice strut,
6. anchor plate-end double sided rack axle, 7. wedge shape briquetting permanent seat, 8. bearing with spherical outside surface adapter plate, 9. locking rack,
10. connection angle steel, 11. screw retention plates, 12. lock screws, 13. anchor slabs, 14. inclined-plane locking levers,
15. inclined-plane locking lever retracing spring, 16. rack shaft spline pieces, 17. threaded mandrel spline plates, 18. wedge shape briquettings,
The screw 19. welding transition piece, 20. locking levers reset
The specific embodiment
1, specific embodiments
Engagement realizes with the tooth pitch being that the length of unit has level to regulate when adopting double sided rack, and stressed unbalanced shortcoming when having overcome one-sided tooth bar engagement has significantly increased load-carrying capacity.Be large-scale length adjustment adopt double sided rack simultaneously ingear a grade slide control is arranged, eliminate the gap between the tooth bar with oblique mechanism then and realize step-less adjustment in the single tooth pitch length, but corrosion and the wearing and tearing of automatic compensation in using.
2, the length adjustment of mechanism:
Among Fig. 1, Fig. 2, the length of lattice strut (5) is a changing value in actual use, therefore at first needs the relative position of coarse regulation tower machine end double sided rack axle (1), anchor plate-end double sided rack axle (6) and tooth bar axle bed (2).The inclined-plane, top of inclined-plane locking lever (14) equates with inclined-plane, the top gradient of locking rack (9), locking axle bed (3) is fixed on the tooth bar axle bed (2), inclined-plane locking lever (14) is a bearing fit with the hole of locking on the axle bed (3), at first to regulate the locking lever screw (20) that resets when regulating relative position, the elastic force that makes inclined-plane locking lever (14) overcome inclined-plane locking lever retracing spring (15) outwards moves, overlap with locking axle bed (3) side up to its top end face, prepare for inserting locking rack (9).
Because tower machine end double sided rack axle (1) and anchor plate-end double sided rack axle (6) are 4 rectangles that the angle is a fillet perpendicular to the cross-sectional plane of axis, fillet is concentric with the circular hole on the tooth bar axle bed (2), and equal and opposite in direction is a bearing fit between axle and the hole.Therefore can mobile anchor plate-end double sided rack axle (6) and tower machine end double sided rack axle (1) arrive needed position, make brace bar attached overall length meet the demands substantially, the coarse regulation precision is in a tooth pitch scope.
Tooth bar axle bed (2) inner chamber is an isosceles trapezoid perpendicular to the cross section of anchor plate-end double sided rack axle (6) axis, and its two waist contacts with the prism of locking rack (9) respectively, and gradient equates; The cross section that tooth bar axle bed (2) inner chamber is parallel to anchor plate-end double sided rack axle (6) axis is a rectangle, and insert locking rack (9) this moment, and its vertical side matches with the vertical side of tooth bar axle bed (2); The tooth of locking rack (9) is meshing with each other with the tooth of tower machine end double sided rack axle (1), anchor plate-end double sided rack axle (6) two sides respectively, the shape of tooth is consistent with size, and rectangular distribution vertically, profile of tooth constitutes by two waists of equicrural triangle with the tangent roundlet arc of two waists, the between cog area of contact is big, and the stress concentration phenomenon is not obvious.The prism of locking rack in the insertion process (9) along tooth bar axle bed (2) inner chamber prism to lower slider, because the effect on inclined-plane, diameter clearance between the intermeshing tooth is more and more littler, when locking rack (9) put in place fully promptly can not along tooth bar axle bed (2) inner chamber prism when moving downward, the gap between the tooth is zero to be in complete engagement.
3, the locking of mechanism:
1) locking of tower machine end double sided rack axle (1):
Among Fig. 2, Fig. 3, threaded mandrel spline plate (17) is fixed in locking axle bed (3), and locking lever retracing spring (15) one ends in inclined-plane contact with step end face on the inclined-plane locking lever (14), and the other end contacts with threaded mandrel spline plate (17).The inclined-plane, top of inclined-plane locking lever (14) equates with inclined-plane, the top gradient of locking rack (9), inclined-plane locking lever (14) is a bearing fit with the hole of locking on the axle bed (3), at first to unclamp the locking lever screw (20) that resets during locking, inclined-plane locking lever (14) to front slide, matches up to the inclined-plane, top of its inclined-plane, top with locking rack (9) under the effect of inclined-plane locking lever retracing spring (15).Inclined-plane locking lever (14) is delivered to the spring force of inclined-plane locking lever retracing spring (15) on locking rack (9) inclined-plane, top by the inclined-plane, realizes the self-locking on inclined-plane.
2) locking of anchor plate-end double sided rack axle (6):
Among Fig. 4, Fig. 5, compare with the locking process of tower pusher side annular rack axle (2), anchor plate-end double sided rack axle (6) will increase the step-less adjustment and the locking process of length: after anchor plate-end double sided rack axle (6) and tooth bar axle bed (2) have realized having level to regulate with the length that a tooth pitch is a unit, its relative position is a ccasual in a tooth pitch, must utilize oblique mechanism to realize step-less adjustment and locking.
Anchor plate-end double sided rack axle (6) afterbody has the projection of an isosceles echelon form, and the double inclined plane that its two waist forms matches the angle unanimity with the prism of wedge shape briquetting (18).Two rectangular channels are arranged before and after the wedge shape briquetting permanent seat (7), its front portion contacts with the vertical side of wedge shape briquetting (18) than two vertical side of large rectangle groove, be used for bearing the application force of the anchor plate-end double sided rack axle (6) that transmits by wedge shape briquetting (18), the wedge shape briquetting (18) of the left and right sides is responsible for the length step-less adjustment and the locking of former and later two directions of anchor plate-end double sided rack axle (6) respectively.Screw retention plate (11) is a bearing fit with wedge shape briquetting permanent seat (7) top chute, and lock screw (12) is pressed in wedge shape briquetting (18) end face, finishes inclined-plane locking process.
4, the design of force structure:
Among Fig. 4, Fig. 5, the rectangular indentation on the welding transition piece (19) matches with the rectangular indentation of bearing with spherical outside surface adapter plate (8) front end, its rectangular preiection and wedge shape briquetting permanent seat (7) rear end little rectangular channel match.Welding transition piece (19), wedge shape briquetting permanent seat (7) and bearing with spherical outside surface adapter plate (8) form an integral body by welding, this have the weldment of bayonet socket to have advantage of simple structure, overcome general weldment not high shortcoming of reliability under the reverse stress effect simultaneously.The wedge shape briquetting permanent seat (7) that connects the angle steel (10) and the left and right sides links, and increases the intensity and the rigidity of mechanism.
Bearing with spherical outside surface adapter plate (8) matches with bearing with spherical outside surface, the relative space position between can the automatically regulating part, and it is coarse effectively to solve in vehicle for construction manufacturing and the use reference for installation, the low installation question that causes of correlated parts accuracy of manufacture.
Claims (7)
1, a kind of brace bar attached to bilateral-rack inclined sides, by tower machine end double sided rack axle (1), tooth bar axle bed (2), locking axle bed (3), transition gusset piece (4), lattice strut (5), anchor plate-end double sided rack axle (6), wedge shape briquetting permanent seat (7), bearing with spherical outside surface adapter plate (8), locking rack (9) connects angle steel (10), screw retention plate (11), lock screw (12), anchor slab (13), inclined-plane locking lever (14), inclined-plane locking lever retracing spring (15), rack shaft spline piece (16), threaded mandrel spline plate (17), wedge shape briquetting (18), welding transition piece (19), the locking lever screw (20) that resets is formed, it is characterized in that locking rack (9) respectively with tower machine end double sided rack axle (1), the tooth of anchor plate-end double sided rack axle (6) two sides is meshing with each other, and the shape of tooth is consistent with size, and rectangular distribution vertically, profile of tooth constitutes by two waists of equicrural triangle with the tangent roundlet arc of two waists; Tooth bar axle bed (2) inner chamber is an isosceles trapezoid perpendicular to the cross section of anchor plate-end double sided rack axle (6) axis, and its two waist contacts with the prism of locking rack (9) respectively, and gradient equates; The cross section that the inner chamber of tooth bar axle bed (2) is parallel to anchor plate-end double sided rack axle (6) axis is a rectangle, and its vertical side contacts with the vertical side of locking rack (9); Anchor plate-end double sided rack axle (6) afterbody has the projection of an isosceles echelon form, and the double inclined plane that its two waist forms matches the angle unanimity with the prism of wedge shape briquetting (18).
2, brace bar attached to bilateral-rack inclined sides according to claim 1, it is characterized in that tower machine end double sided rack axle (1) and anchor plate-end double sided rack axle (6) are 4 rectangles that the angle is a fillet perpendicular to the cross-sectional plane of axis, fillet is concentric with the circular hole on the tooth bar axle bed (2), equal and opposite in direction is a bearing fit between axle and the hole.
3, brace bar attached to bilateral-rack inclined sides according to claim 1, the inclined-plane, top that it is characterized in that inclined-plane locking lever (14) equates with inclined-plane, the top gradient of locking rack (9), locking axle bed (3) is fixed on the tooth bar axle bed (2), inclined-plane locking lever (14) is a bearing fit with the hole of locking on the axle bed (3), the inclined-plane, top of inclined-plane locking lever (14) matches with the inclined-plane, top of locking rack (9) during locking, and the top end face of inclined-plane locking lever (14) overlaps with locking axle bed (3) side when regulating length.
4, brace bar attached to bilateral-rack inclined sides according to claim 1, it is characterized in that threaded mandrel spline plate (17) is fixed on the locking axle bed (3), locking lever retracing spring (15) one ends in inclined-plane contact with step end face on the inclined-plane locking lever (14), and the other end contacts with threaded mandrel spline plate (17).
5, brace bar attached to bilateral-rack inclined sides according to claim 1 is characterized in that before and after the wedge shape briquetting permanent seat (7) two rectangular channels being arranged, and its front portion contacts with the vertical side of wedge shape briquetting (18) than two vertical side of large rectangle groove.
6, brace bar attached to bilateral-rack inclined sides according to claim 1 is characterized in that screw retention plate (11) and wedge shape briquetting permanent seat (7) top chute are bearing fit, and lock screw (12) is pressed in wedge shape briquetting (18) end face.
7, brace bar attached to bilateral-rack inclined sides according to claim 1, it is characterized in that the rectangular indentation on the welding transition piece (19) matches with the rectangular indentation of bearing with spherical outside surface adapter plate (8) front end, its rectangular preiection and wedge shape briquetting permanent seat (7) rear end little rectangular channel match, the wedge shape briquetting permanent seat (7) that connects angle steel (10) and the left and right sides links.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101587981A CN101633480B (en) | 2009-02-10 | 2009-07-03 | Brace bar attached to bilateral-rack inclined sides |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920003439.4 | 2009-02-10 | ||
| CN200920003439 | 2009-02-10 | ||
| CN2009101587981A CN101633480B (en) | 2009-02-10 | 2009-07-03 | Brace bar attached to bilateral-rack inclined sides |
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| Publication Number | Publication Date |
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| CN101633480A true CN101633480A (en) | 2010-01-27 |
| CN101633480B CN101633480B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009101587981A Expired - Fee Related CN101633480B (en) | 2009-02-10 | 2009-07-03 | Brace bar attached to bilateral-rack inclined sides |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367118A (en) * | 2011-10-24 | 2012-03-07 | 浙江海森纺机科技有限公司 | Lower thread cutting fixed seat on braiding knotless net spooling machine |
| CN112374385A (en) * | 2020-11-30 | 2021-02-19 | 常德市振东机械有限公司 | Telescopic attachment frame mounting and fixing device for tower crane |
| CN112747226A (en) * | 2019-10-30 | 2021-05-04 | 山东外贸职业学院 | Tablet personal computer supporting equipment for English study |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232000B (en) * | 2013-04-28 | 2015-04-01 | 中联重科股份有限公司 | Internal climbing tower crane |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032611U (en) * | 1987-10-15 | 1989-02-15 | 中国建筑科学研究院建筑机械化研究所 | Folding type fast erecting tower crane |
| CN2329645Y (en) * | 1998-03-31 | 1999-07-21 | 田奇 | Self-standing tower-platform dual-purpose crane |
| JP4890730B2 (en) * | 2000-09-22 | 2012-03-07 | タワー・ソルーションズ・エルエルシー | Folding columnar structure |
-
2009
- 2009-07-03 CN CN2009101587981A patent/CN101633480B/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102367118A (en) * | 2011-10-24 | 2012-03-07 | 浙江海森纺机科技有限公司 | Lower thread cutting fixed seat on braiding knotless net spooling machine |
| CN112747226A (en) * | 2019-10-30 | 2021-05-04 | 山东外贸职业学院 | Tablet personal computer supporting equipment for English study |
| CN112374385A (en) * | 2020-11-30 | 2021-02-19 | 常德市振东机械有限公司 | Telescopic attachment frame mounting and fixing device for tower crane |
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| Publication number | Publication date |
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| CN101633480B (en) | 2013-04-17 |
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Application publication date: 20100127 Assignee: YANGZHOU SHILI HARDWARE TOOL INDUSTRY AND TRADE CO., LTD. Assignor: Yangzhou Industry Polytechnic College Contract record no.: 2016320000175 Denomination of invention: Brace bar attached to bilateral-rack inclined sides Granted publication date: 20130417 License type: Common License Record date: 20160707 |
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