CN101670977B - Landing-lag gap adjusting device - Google Patents
Landing-lag gap adjusting device Download PDFInfo
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- CN101670977B CN101670977B CN2009101773383A CN200910177338A CN101670977B CN 101670977 B CN101670977 B CN 101670977B CN 2009101773383 A CN2009101773383 A CN 2009101773383A CN 200910177338 A CN200910177338 A CN 200910177338A CN 101670977 B CN101670977 B CN 101670977B
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- supporting leg
- adjusting device
- gap adjusting
- lag
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Abstract
The invention discloses a landing-lag gap adjusting device, comprising a sliding sleeve fixedly connected on an outer landing lag, a roller frame arranged in the sliding sleeve in a up-down movement manner, and an adjusting bolt connected to the sliding sleeve in a screw manner, wherein, the roller frame is installed with a roller which supports an inner landing lag along the width direction of the inner landing lag; and the adjusting bolt is used for adjusting the position of the roller frame in the sliding sleeve. The landing-lag gap adjusting device of the invention has simple structure, compact volume, simple adjustment and installation, no restriction on installation position and on the width of the landing lag, and can realize leveling of the inner landing leg.
Description
Technical field
The present invention relates to the landing-lag gap adjusting device that uses on the vehicles such as a kind of wheel crane.
Background technology
Must guarantee less clearance between the fixed supporting leg of vehicles such as wheel crane and movable supporting legs, movable supporting legs and the movable supporting legs, otherwise movable supporting legs will be obviously sagging, can not guarantee the optimum position and the state of kinematic motion of movable supporting legs.
On the supporting leg of vehicles such as a part of wheel crane, outer supporting leg (as fixed supporting leg) is provided with adjustable bolt, interior supporting leg (as movable supporting legs) is bearing on the end face of adjustable bolt, the fore and aft motion of interior supporting leg exists bigger friction drag and wearing and tearing, and the adjust the clearance between interior supporting leg and the outer supporting leg is more frequent.In addition, oil cylinder working-pressure in the interior supporting leg and wirerope diameter and other size of components are all corresponding bigger.
Japanese patent laid-open 11-322938 discloses a kind of bearing support assembly of movable crane supporting leg.As depicted in figs. 1 and 2, this bracing or strutting arrangement comprises: bearing frame 11, comprise the left and right riser 12 and the base plate 14 that are installed on the outer supporting leg 1, and offer guide hole 13 on the left and right riser 12; Axle 18, guide hole 13 is stretched out at two ends, can move up and down along guide hole; Bearing 17 is arranged on axle 18 the left and right sides, supporting leg 2 in supporting; And two adjustable bolts 23, the position separately be screw-coupled to bearing frame 11, the moving of bolster 18.Wherein, upright supporting leg 3 is provided with the locating piece 4 that limits bearing frame 11 positions.
The effect of above-mentioned bearing support assembly mainly is that internal supporting leg carries out whole leveling, and to have avoided the inclination of interior supporting leg, the friction of rolling of bearing has the effect that reduces friction drag between the inside and outside supporting leg simultaneously.Yet its volume is bigger, and complex structure only is fit to be installed in the head or the afterbody of outer supporting leg, and does not use for the bigger supporting leg of width.In addition, need not the occasion of leveling at interior supporting leg, it is loaded down with trivial details that the adjust the clearance of above-mentioned bearing support assembly then seems.
Summary of the invention
The object of the invention is to provide a kind of landing-lag gap adjusting device of simple in structure, volume compact.
For this reason, the invention provides a kind of landing-lag gap adjusting device, it comprises: sliding sleeve, captive joint are outside on the supporting leg; Turning rolls can be arranged in the sliding sleeve up or down, wherein, roller is installed on the turning rolls, and roller is along supporting leg in the Width supporting of interior supporting leg; And adjustable bolt, be screw-coupled to sliding sleeve, be used for regulating the position of turning rolls at sliding sleeve.
Preferably, above-mentioned sliding sleeve is
Shape, and be fixed on the outer supporting leg by spiro connecting piece.
Preferably, the above-mentioned rollers frame comprises orienting lug, is arranged at the lug of both sides, orienting lug top and the roller shaft that runs through two lugs, and wherein, roller housing is located on the roller shaft.
Preferably, an end of above-mentioned rollers axle is a caulking part.
Preferably, be provided with lubricating oil between above-mentioned rollers and the roller shaft.
Preferably, offer end for adjustable bolt on the above-mentioned orienting lug and be contained in wherein hole.
Preferably, above-mentioned interior supporting leg and outer supporting leg are respectively movable supporting legs.Perhaps alternatively, above-mentioned interior supporting leg is a movable supporting legs, and outer supporting leg is a fixed supporting leg.
Preferably, above-mentioned sliding sleeve is arranged on any position of the bottom of fixed supporting leg.
Landing-lag gap adjusting device of the present invention is simple in structure, adjust and simple installation, the installation site is unrestricted, and be not subjected to the supporting leg width limitations, both can satisfy the supporting leg adjust the clearance of car hosit, can satisfy the supporting leg adjust the clearance of the full ground hoisting crane of supporting leg broad again, the leveling of supporting leg in can realizing simultaneously.
Except purpose described above, feature and advantage, the present invention also has other purpose, feature and advantage.Below with reference to figure, other purpose, feature and effect of the present invention is described in further detail.
Description of drawings
Constitute this specification sheets a part, be used for further understanding accompanying drawing of the present invention and show the preferred embodiments of the present invention, and be used for illustrating principle of the present invention with specification sheets.Among the figure:
Fig. 1 shows the structural representation of bearing support assembly of the movable crane supporting leg of prior art;
Fig. 2 shows the sectional structure of bearing support assembly shown in Figure 1;
Fig. 3 shows the structural representation of landing-lag gap adjusting device according to the preferred embodiment of the invention; And
Fig. 4 shows the A-A cutaway view of landing-lag gap adjusting device shown in Figure 3.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.Identical in the accompanying drawings parts are represented with identical label.
Fig. 3 shows the structural representation of landing-lag gap adjusting device according to the preferred embodiment of the invention, and Fig. 4 shows the A-A cutaway view of landing-lag gap adjusting device shown in Figure 3.As shown in Figure 3 and Figure 4, in this preferred embodiment, landing-lag gap adjusting device 20 comprises sliding sleeve 23, the turning rolls 26 of roller 25 is installed and be used to adjust the adjustable bolt 21 of turning rolls 26 positions.Below each parts is described in detail.
Sliding sleeve 23 captive joints are outside on the supporting leg 12.Sliding sleeve 23 preferably is
Shape is screw-coupled on the outer supporting leg 12 by spiro connecting pieces 24 such as two bolts, so, and the simple installation of landing-lag gap adjusting device.
Turning rolls 26 constrains in the sliding sleeve 23, can move up and down in sliding sleeve 23.Preferably, turning rolls 26 comprise orienting lug 262, be arranged at both sides, orienting lug 262 top lug 261, run through the roller shaft 27 of two lugs 261 and be set in roller 25 on the roller shaft 27.Preferably, be filled with the lubricating oil (not shown) between roller 25 and the roller shaft 27, to reduce the roller rotary resistance.
Wherein, roller 25 (perhaps being called cover) is along supporting leg 11 in the Width supporting of interior supporting leg 11.The width of roller 25 can be provided with according to the width of interior supporting leg 11, the width of supporting leg 11 in being slightly less than usually.One end of roller shaft 27 forms caulking part 271, so that roller shaft 27 is fixed on the turning rolls 26.
Landing-lag gap adjusting device of the present invention is adjusted easy, only need turn an adjustable bolt and get final product.Simultaneously, the inventor finds, the leveling of supporting leg in the landing-lag gap adjusting device of said structure also can be realized.
It will be understood by those skilled in the art that in invention interior supporting leg 11 is a movable supporting legs, outer supporting leg 12 can be movable supporting legs, also can be fixed supporting leg.Sliding sleeve 23 can be fixed on any position of the bottom of fixed supporting leg 12, and is not limited to a certain position.In addition, the width of roller is unrestricted, can produce the landing-lag gap adjusting device of different size, is used for various hoisting crane supporting legs with Telescopic.
Directly regulating the supporting leg gap with the bolt of prior art compares, supporting leg and roller produce friction of rolling in of the present invention, the friction drag of interior supporting leg fore and aft motion reduces, so can reduce wearing and tearing, reduce the adjust the clearance number of times, can reduce telescopic oil cylinder diameter or wall thickness, diameter of piston rod, wirerope diameter, make the landing-lag gap adjusting device lightweight.
By above description as can be seen, landing-lag gap adjusting device of the present invention is simple in structure, adjustment and simple installation, and the installation site is unrestricted, and is not subjected to the supporting leg width limitations, the leveling of supporting leg in can realizing simultaneously.
Be the preferred embodiments of the present invention only below, be not limited to the present invention, for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (9)
1. a landing-lag gap adjusting device is characterized in that, comprising:
Sliding sleeve (23), captive joint are outside on the supporting leg (12);
Turning rolls (26) can be arranged in the described sliding sleeve (23) up or down, wherein, roller (25) is installed on the described turning rolls (26), and described roller (25) is along the described interior supporting leg (11) of the Width supporting of interior supporting leg (11); And
Adjustable bolt (21) is screw-coupled to sliding sleeve (23), is used for regulating the position of described turning rolls (26) in described sliding sleeve (23).
2. landing-lag gap adjusting device according to claim 1 is characterized in that,
Described sliding sleeve (23) is
Shape, and be fixed on the described outer supporting leg (12) by spiro connecting piece (24).
3. landing-lag gap adjusting device according to claim 2 is characterized in that,
The roller shaft (27) that described turning rolls (26) comprises orienting lug (262), is arranged at the lug (261) of described orienting lug (262) both sides, top and runs through two lugs (261),
Wherein, described roller (25) is set on the described roller shaft (27).
4. landing-lag gap adjusting device according to claim 3 is characterized in that,
One end of described roller shaft (27) is caulking part (271).
5. landing-lag gap adjusting device according to claim 3 is characterized in that,
Be provided with lubricating oil between described roller (25) and the described roller shaft (27).
6. landing-lag gap adjusting device according to claim 3 is characterized in that,
The end that offers on the described orienting lug (262) for described adjustable bolt (21) is contained in wherein hole (263).
7. according to each described landing-lag gap adjusting device in the claim 1 to 6, it is characterized in that,
Supporting leg (11) and outer supporting leg (12) are respectively movable supporting legs in described.
8. according to each described landing-lag gap adjusting device in the claim 1 to 6, it is characterized in that,
Supporting leg (11) is a movable supporting legs in described, and described outer supporting leg (12) is a fixed supporting leg.
9. landing-lag gap adjusting device according to claim 8 is characterized in that,
Described sliding sleeve (23) is arranged on any position of the bottom of described fixed supporting leg (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101773383A CN101670977B (en) | 2009-09-30 | 2009-09-30 | Landing-lag gap adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101773383A CN101670977B (en) | 2009-09-30 | 2009-09-30 | Landing-lag gap adjusting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101670977A CN101670977A (en) | 2010-03-17 |
| CN101670977B true CN101670977B (en) | 2011-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101773383A Active CN101670977B (en) | 2009-09-30 | 2009-09-30 | Landing-lag gap adjusting device |
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| Country | Link |
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| CN (1) | CN101670977B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101920915B (en) * | 2010-08-25 | 2012-05-23 | 江苏柳工机械有限公司 | Support leg gap adjusting device |
| CN103848357A (en) * | 2014-03-17 | 2014-06-11 | 张亮 | Wall-attached device of tower crane |
| CN104101278B (en) * | 2014-07-10 | 2017-02-01 | 湖南湖大艾盛汽车技术开发有限公司 | Multi-vehicle checking-tool-sharing platform structure |
| CN105439013B (en) * | 2015-01-21 | 2017-06-20 | 徐州重型机械有限公司 | Leg adjusting device, telescopic leg and mobilecrane |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578302Y (en) * | 2002-08-30 | 2003-10-08 | 江苏省机电研究所有限公司 | Supporting leg adjusting mechanism of high-altitude operation car |
| CN2587836Y (en) * | 2002-11-18 | 2003-11-26 | 徐州重型机械厂 | Swing type outrigger for truck crane |
| CN201010455Y (en) * | 2007-03-14 | 2008-01-23 | 山东华夏集团有限公司 | Climbing roller device of tower crane |
| CN201140971Y (en) * | 2007-11-12 | 2008-10-29 | 长沙中联重工科技发展股份有限公司 | Supporting leg structure for crane |
-
2009
- 2009-09-30 CN CN2009101773383A patent/CN101670977B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2578302Y (en) * | 2002-08-30 | 2003-10-08 | 江苏省机电研究所有限公司 | Supporting leg adjusting mechanism of high-altitude operation car |
| CN2587836Y (en) * | 2002-11-18 | 2003-11-26 | 徐州重型机械厂 | Swing type outrigger for truck crane |
| CN201010455Y (en) * | 2007-03-14 | 2008-01-23 | 山东华夏集团有限公司 | Climbing roller device of tower crane |
| CN201140971Y (en) * | 2007-11-12 | 2008-10-29 | 长沙中联重工科技发展股份有限公司 | Supporting leg structure for crane |
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| Publication number | Publication date |
|---|---|
| CN101670977A (en) | 2010-03-17 |
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Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Patentee after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 No. 361 South silver basin, Hunan, Changsha Patentee before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Outrigger clearance adjustment device Effective date of registration: 20201221 Granted publication date: 20110427 Pledgee: ZOOMLION Group Finance Co.,Ltd. Pledgor: Zoomlion Heavy Industry Science and Technology Co.,Ltd. Registration number: Y2020430000044 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20220317 Granted publication date: 20110427 Pledgee: ZOOMLION Group Finance Co.,Ltd. Pledgor: ZOOMLION HEAVY INDUSTRY SCIENCE AND TECHNOLOGY Co.,Ltd. Registration number: Y2020430000044 |