CN101633480B - Brace bar attached to bilateral-rack inclined sides - Google Patents
Brace bar attached to bilateral-rack inclined sides Download PDFInfo
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- CN101633480B CN101633480B CN2009101587981A CN200910158798A CN101633480B CN 101633480 B CN101633480 B CN 101633480B CN 2009101587981 A CN2009101587981 A CN 2009101587981A CN 200910158798 A CN200910158798 A CN 200910158798A CN 101633480 B CN101633480 B CN 101633480B
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- rack
- locking
- plane
- axle
- double sided
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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; two sides of the inner cavity of the rack shaft seat, perpendicular to the axis of the rack shaft gear, are matched with two sides of the locking rack which is perpendicular to the axis of the rack shaft; 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. 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. 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 contour localization locking, reliable lock, bearing capacity significantly increases.
Background technology
Brace bar attached use threaded adjusting length in the market, the screw-threaded coupling reliability is not high, the little easy wearing and tearing of bearing load.The tower machine is operated under the high wind environment of high-altitude, in case screw thread occurs loosening, can bear huge additional impact load under the Under Dynamic Load of high wind, even this screw thread also can produce rapidly destruction by strength check, helicitic texture has become a bottleneck problem in the brace bar attached use.The user wishes to design and a kind ofly can satisfy the aloft work requirement and without the length adjustment 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 the single rack engagement, the shortcoming that bearing load is little the invention provides a kind of brace bar attached to bilateral-rack inclined sides, and simple in structure, reliable lock, bearing capacity are large.
The technical solution used in the present invention is: adopt double sided rack to mesh simultaneously, realize that the length take tooth pitch as unit has level to regulate, then realize length step-less adjustment and locking by oblique mechanism.
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), connect angle steel (10), screw adapter plate (11), lock screw (12), anchor slab (13), inclined-plane locking lever (14), inclined-plane locking lever retracing spring (15), rack shaft anti-rotation block (16), threaded mandrel spline plate (17), wedge shape briquetting (18), welding transition piece (19), the locking lever screw (20) that resets forms, 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 intermeshing, the shape of tooth and in the same size, and evenly distribute vertically, profile of tooth consists of by two waists of equicrural triangle with the tangent small arc-shaped of two waists; Tooth bar axle bed (2) inner chamber is isosceles trapezoid perpendicular to the cross section of anchor plate-end double sided rack axle (6) axis, and two waists of isosceles trapezoid contact 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 rectangle, and the two side faces perpendicular to anchor plate-end double sided rack axle (6) axis in tooth bar axle bed (2) inner chamber matches with the upper two side faces perpendicular to anchor plate-end double sided rack axle (6) axis 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 isosceles trapezoid shape projection two kidney-shapeds become matches 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 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, being bearing fit between the circular hole on tower machine end double sided rack axle (1) and the tooth bar axle bed (2), is bearing fit between the circular hole on anchor plate-end double sided rack axle (6) and the tooth bar axle bed (2).
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 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, two rectangular channels are arranged before and after the wedge shape briquetting permanent seat (7), anterior two vertical side than the large rectangle groove contact with the vertical side of wedge shape briquetting (18), 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 the less rectangular channel in rear portion match, the wedge shape briquetting permanent seat (7) that connects angle steel (10) and the left and right sides links.
6, a chute is arranged at the top of wedge shape briquetting permanent seat (7), and screw adapter plate (11) is bearing fit with this chute, and lock screw (12) is pressed in wedge shape briquetting (18) end face.
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 the single rack engagement has significantly increased 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 full structural representation of the present invention.
Fig. 2 is the scheme drawings such as double sided rack axle of the present invention, tooth bar axle bed, locking rack.
Fig. 3 is the 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 adapter plates, 12. lock screws, 13. anchor slabs, 14. inclined-plane locking levers,
15. inclined-plane locking lever retracing spring, 16. rack shaft anti-rotation blocks, 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 that the length take tooth pitch as unit has level to regulate when adopting double sided rack, and stressed unbalanced shortcoming when having overcome the single rack engagement has significantly increased load-carrying capacity.Length adjustment adopts the tooth bar engagement on a large scale, then realizes step-less adjustment and the locking of length by oblique mechanism.
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 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, so that overcoming the elastic force of inclined-plane locking lever retracing spring (15), inclined-plane locking lever (14) outwards moves, until its top end face overlaps with locking axle bed (3) side, 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 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, be bearing fit between the circular hole on tower machine end double sided rack axle (1) and the tooth bar axle bed (2), be bearing fit between the circular hole on anchor plate-end double sided rack axle (6) and the tooth bar axle bed (2), therefore can mobile anchor plate-end double sided rack axle (6) and tower machine end double sided rack axle (1) arrive needed position, so that brace bar attached overall length meets the demands substantially, the coarse regulation precision is in a tooth pitch scope.
Tooth bar axle bed (2) inner chamber is isosceles trapezoid perpendicular to the cross section of anchor plate-end double sided rack axle (6) axis, and isosceles trapezoid two waists contact 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 rectangle, insert locking rack (9) this moment, and the front and back two side faces perpendicular to anchor plate-end double sided rack axle (6) axis in tooth bar axle bed (2) inner chamber matches with the upper two side faces perpendicular to anchor plate-end double sided rack axle (6) axis of locking rack (9); The tooth of locking rack (9) is intermeshing 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 and in the same size, and evenly distribute vertically, profile of tooth consists of by two waists of equicrural triangle with the tangent small arc-shaped of two waists, the between cog area of contact is large, 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 the prism down sliding, because the effect on inclined-plane, diameter clearance between the intermeshing tooth is more and more less, when locking rack (9) put in place fully namely 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 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).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 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) under the effect of inclined-plane locking lever retracing spring (15) to front slide, until its inclined-plane, top matches with the inclined-plane, top of locking rack (9).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 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 that length take a tooth pitch as unit has level to regulate, its relative position is at random 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 isosceles trapezoid shape projection two kidney-shapeds become matches 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 respectively length step-less adjustment and the locking of former and later two directions of anchor plate-end double sided rack axle (6).One chute is arranged at the top of wedge shape briquetting permanent seat (7), and screw adapter plate (11) is bearing fit with this 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, and its rectangular preiection matches with the less rectangular channel in wedge shape briquetting permanent seat (7) rear portion.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 simple in structure, overcome simultaneously general weldment not high shortcoming of reliability under the reverse stress effect.The wedge shape briquetting permanent seat (7) that connects angle steel (10) and the left and right sides links, and increases intensity and the rigidity of mechanism.
Bearing with spherical outside surface adapter plate (8) matches with bearing with spherical outside surface, can automatically regulate the relative space position between the part, and it is coarse effectively to solve in vehicle for construction manufacturing and the use procedure reference for installation, the low installation question that causes of correlated parts accuracy of manufacture.
Claims (6)
1. 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), connect angle steel (10), screw adapter plate (11), lock screw (12), anchor slab (13), inclined-plane locking lever (14), inclined-plane locking lever retracing spring (15), rack shaft anti-rotation block (16), threaded mandrel spline plate (17), wedge shape briquetting (18), welding transition piece (19), the locking lever screw (20) that resets forms, 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 intermeshing, the shape of tooth and in the same size, and evenly distribute vertically, profile of tooth consists of by two waists of equicrural triangle with the tangent small arc-shaped of two waists; Tooth bar axle bed (2) inner chamber is isosceles trapezoid perpendicular to the cross section of anchor plate-end double sided rack axle (6) axis, and two waists of isosceles trapezoid contact 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 rectangle, and the two side faces perpendicular to anchor plate-end double sided rack axle (6) axis in tooth bar axle bed (2) inner chamber matches with the upper two side faces perpendicular to anchor plate-end double sided rack axle (6) axis 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 isosceles trapezoid shape projection two kidney-shapeds become matches 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 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, being bearing fit between the circular hole on tower machine end double sided rack axle (1) and the tooth bar axle bed (2), is bearing fit between the circular hole on anchor plate-end double sided rack axle (6) and the tooth bar axle bed (2).
3. brace bar attached to bilateral-rack inclined sides according to claim 1, it is characterized in that inclined-plane locking lever (14) inclined-plane, top equates with locking rack (9) inclined-plane, top gradient, locking axle bed (3) is fixed on the tooth bar axle bed (2), inclined-plane locking lever (14) is bearing fit with the hole of locking on the axle bed (3), inclined-plane locking lever (14) inclined-plane, top matches with locking rack (9) inclined-plane, top 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, it is characterized in that before and after the wedge shape briquetting permanent seat (7) two rectangular channels being arranged, anterior two vertical side than the large rectangle groove contact with the vertical side of wedge shape briquetting (18), 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 matches with the less rectangular channel in rear portion of wedge shape briquetting permanent seat (7) rear end, and the wedge shape briquetting permanent seat (7) that connects angle steel (10) and the left and right sides links.
6. brace bar attached to bilateral-rack inclined sides according to claim 1, one chute is arranged at the top that it is characterized in that wedge shape briquetting permanent seat (7), screw adapter plate (11) is bearing fit with this chute, and lock screw (12) is pressed in wedge shape briquetting (18) end face.
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 | 2009-02-10 | ||
| CN200920003439.4 | 2009-02-10 | ||
| CN2009101587981A CN101633480B (en) | 2009-02-10 | 2009-07-03 | Brace bar attached to bilateral-rack inclined sides |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101633480A CN101633480A (en) | 2010-01-27 |
| CN101633480B true CN101633480B (en) | 2013-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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 (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232000A (en) * | 2013-04-28 | 2013-08-07 | 中联重科股份有限公司 | Internal climbing tower crane |
Families Citing this family (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 |
| CN112374385B (en) * | 2020-11-30 | 2023-01-31 | 常德市振东机械有限公司 | Telescopic attachment frame mounting and fixing device for tower crane |
Citations (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 |
| WO2002025035A2 (en) * | 2000-09-22 | 2002-03-28 | Tower Solutions, Llc | Retractable column and method of forming |
-
2009
- 2009-07-03 CN CN2009101587981A patent/CN101633480B/en not_active Expired - Fee Related
Patent Citations (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 |
| WO2002025035A2 (en) * | 2000-09-22 | 2002-03-28 | Tower Solutions, Llc | Retractable column and method of forming |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103232000A (en) * | 2013-04-28 | 2013-08-07 | 中联重科股份有限公司 | Internal climbing tower crane |
| CN103232000B (en) * | 2013-04-28 | 2015-04-01 | 中联重科股份有限公司 | Internal climbing tower crane |
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| Publication number | Publication date |
|---|---|
| CN101633480A (en) | 2010-01-27 |
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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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Granted publication date: 20130417 Termination date: 20180703 |