CN102514549B - Supporting leg disc, supporting device and engineering vehicle - Google Patents
Supporting leg disc, supporting device and engineering vehicle Download PDFInfo
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- CN102514549B CN102514549B CN201110396007.6A CN201110396007A CN102514549B CN 102514549 B CN102514549 B CN 102514549B CN 201110396007 A CN201110396007 A CN 201110396007A CN 102514549 B CN102514549 B CN 102514549B
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- bracing
- leg
- strutting arrangement
- leg disc
- supporting leg
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Abstract
The invention discloses a supporting leg disc (10) which comprises a sole plate (11), a ball head concave base (12) and a cover plate (13). The ball head concave base (12) is fixedly arranged on the sole plate (11); the ball head concave base (12) and the cover plate (13) are connected together through a connecting piece; and the ball head concave base (12) is eccentrically arranged on the sole plate (11). Through the technical scheme, the ball head concave base of the supporting leg disc is eccentrically arranged on the sole plate to satisfy requirements on a width of the whole vehicle and a span between vehicles. The supporting leg disc has the advantages of being simple in a structure, greatly simplifying operations needed by an engineering vehicle in operation, improving working performance of the vehicle and reducing labor intensity and operational complexity of operational personnel.
Description
Technical field
The present invention relates to the supporting construction of engineering truck, particularly, relate to a kind of leg disc.In addition, the invention still further relates to the bracing or strutting arrangement that utilizes this leg disc, and comprise the engineering truck of this bracing or strutting arrangement.
Background technology
In engineering truck, such as hoisting crane, aerial platform, fire fighting turnable ladder, high spray fire extinguishing tanker and Elevating platform fire truck etc., in order to keep the balance of vehicle body, conventionally need to use supporting construction, for example support to keep balance by the structure of the supporting leg forms such as movable supporting legs, bottom at the Vertical Cylinders of movable supporting legs is provided with leg disc conventionally, and this movable supporting legs contacts with ground by leg disc.
Reliable and stable for what keep supporting, that conventionally the area of contact on leg disc and ground is designed is larger, and therefore the outer peripheral distance of the leg disc of vehicle body both sides is often greater than the developed width of vehicle body.For the width control that makes vehicle within the limits prescribed, usually need supporting leg to move to vehicle center together with leg disc, will affect so the horizontal span of this class vehicle, and the horizontal span of supporting leg is the important parameter that affects vehicle operation performance, particularly in big-and-middle-sized engineering truck, be that the horizontal span supporting leg is designed to optimum in the allowed band of vehicle width for the key of the design of supporting construction.
In the prior art, leg disc comprises base plate and cover plate, is formed with bulb dimple on this base plate, the bulb of supporting leg end is embedded in this bulb dimple, and then cover cover plate, on cover plate, there is mounting hole and can pass bulb, and the sidewall of mounting hole forms the cambered surface adapting with bulb.This cover plate 2 is generally split type, and cover plate and base plate is fixed together with attaching partss such as bolts, thereby supporting leg and leg disc are fixed together, and the bulb of supporting leg can rotate in bulb dimple.Such supporting construction can not regulate, if leg disc designs and produces to such an extent that be more just easy to cause car load super wide, if leg disc designs and produces littlely, can cause lateral direction of car span too short, affects the transaction capabilities of vehicle.
Summary of the invention
The object of this invention is to provide a kind of leg disc, this leg disc can make to reduce car load width and increase lateral direction of car span.
To achieve these goals, the invention provides a kind of leg disc, this leg disc comprises base plate, bulb dimple and cover plate, described bulb dimple is fixedly installed on described base plate, described bulb dimple and cover plate link together by attaching parts, wherein, described bulb dimple is arranged on described base plate prejudicially.
To achieve these goals, the invention provides a kind of bracing or strutting arrangement, this bracing or strutting arrangement comprises the leg disc and the supporting leg that link together, and wherein, described leg disc is according to leg disc of the present invention.
In addition, the present invention also provides a kind of engineering truck, and this project vehicle comprises bracing or strutting arrangement of the present invention.
By technique scheme, the bulb dimple of leg disc is arranged on base plate prejudicially, to meet the requirement of car load width and vehicle span.Above-mentioned leg disc simple in structure, required operation while greatly having simplified engineering truck operation, has improved the transaction capabilities of vehicle, has reduced operating personnel's labour intensity and Operating Complexity.
Other features and advantages of the present invention are described in detail the detailed description of the invention part subsequently.
Brief description of the drawings
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for specification sheets, is used from explanation the present invention, but is not construed as limiting the invention with detailed description of the invention one below.In the accompanying drawings:
Fig. 1 is the front view of the complete contraction state of vertical leg of bracing or strutting arrangement according to the preferred embodiment of the present invention;
Fig. 2 is the birds-eye view of leg disc according to the preferred embodiment of the present invention;
Fig. 3 is the lateral plan of the complete contraction state of vertical leg of bracing or strutting arrangement according to the preferred embodiment of the present invention;
Fig. 4 is the front view that the vertical leg of bracing or strutting arrangement is according to the preferred embodiment of the present invention stretched out state.
Description of reference numerals
10 leg disc 11 base plates
12 bulb dimple 13 cover plates
14 stay bearing plate 20 supporting legs
21 outermost layer sleeve 22 locatings plate
30 springs
Detailed description of the invention
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, detailed description of the invention described herein only, for description and interpretation the present invention, is not limited to the present invention.
In the present invention, in the situation that not doing contrary explanation, the noun of locality using typically refers to leg disc of the present invention and the direction of bracing or strutting arrangement under use state as " upper and lower ", the namely above and below shown in accompanying drawing, " inside and outside " is according to the implication of practical application indication, some is for describing internal layer and the skin of multilayer sleeve of supporting leg, some is for describing the direction of relative vehicle of bracing or strutting arrangement, be that bracing or strutting arrangement is called inner side towards a side of vehicle, be called outside away from a side of vehicle.Based on context other the concrete meaning of the noun of locality of other can judge.
The invention provides a kind of leg disc 10, this leg disc comprises base plate 11, bulb dimple 12 and cover plate 13, described bulb dimple 12 is fixedly installed on described base plate 11, described bulb dimple 12 and cover plate 13 link together by attaching parts, wherein, described bulb dimple 12 is arranged on described base plate 11 prejudicially.
By technique scheme, the bulb dimple of leg disc is arranged on base plate prejudicially, to meet the requirement of car load width and vehicle span.Above-mentioned leg disc simple in structure, required operation while greatly having simplified engineering truck operation, has improved the transaction capabilities of vehicle, has reduced operating personnel's labour intensity and Operating Complexity.
Preferably, described base plate 11 is oblong, and described bulb dimple 12 arranges prejudicially on Width.
In this preferred implementation, base plate is preferably oblong, and bulb dimple 12 eccentric setting on Width that is to say that the distance between a long limit of this bulb dimple 12 and oblong base 11 is greater than the distance between another long limit.And this bulb dimple 12 can also can not arrange by eccentric setting in the longitudinal direction prejudicially, the present invention is not limited.
Preferably, be provided with multiple stay bearing plates 14 that also radially extend perpendicular to described base plate 11 around described bulb dimple 12.
As shown in Figure 2, multiple stay bearing plates 14 are set around bulb dimple 12, this stay bearing plate 14 is perpendicular to described base plate 11, and one end is connected with the outer peripheral face of bulb dimple 12, and the other end radially stretches out.And, this stay bearing plate 14 can arrange symmetrically around bulb dimple 12, also can arrange asymmetrically according to actual size situation (as Fig. 2), and the length of this stay bearing plate 14 also can be different, its function is mainly the support to bulb dimple 12, to play structural booster action.
The present invention also provides a kind of bracing or strutting arrangement, and this bracing or strutting arrangement comprises the leg disc 10 and the supporting leg 20 that link together, and wherein, described leg disc is according to leg disc 10 of the present invention.
Bracing or strutting arrangement of the present invention comprises the leg disc 10 and the supporting leg 20 that cooperatively interact.This supporting leg 20 is generally used in engineering truck, for counterweight and support; And leg disc 20 is common and supporting leg 10 is used in conjunction with, on the ground being covered to leg disc 20 with the load distribution that supporting leg 20 is born, plays and increase area of thrust surface to reduce the effect of pressure.Utilize the bracing or strutting arrangement of leg disc of the present invention can also in meeting vehicle span, limit well car load width.
Preferably, described base plate 11 is oblong, and described bulb dimple 12 arranges prejudicially on Width, and described base plate 11 is connected by symmetrical in the longitudinal direction spring 30 with described supporting leg 20.
In this preferred implementation, base plate 11 is oblong, and bulb dimple 12 arranges prejudicially on Width, therefore, before supporting leg 20 contacts with ground with leg disc 10, is easy to because the rotation around supporting leg 20 occurs the crank of leg disc 10.Affect car load width for fear of there is this rotation, this preferred implementation also utilizes spring 30 that base plate 11 and supporting leg 20 are linked together.
The both sides that are arranged on supporting leg 20 that spring 30 is symmetrical in the longitudinal direction, and the quantity of the spring of both sides is also preferably identical.Because base plate 11 is oblong, therefore the both sides weight of the length direction of bulb dimple 12 is larger, and the base plate of these both sides 11 and supporting leg are fixed together and just can prevent that base plate 11 from rotating around supporting leg 20.
Preferably, be provided with multiple stay bearing plates 14 around described bulb dimple 12, one end of described spring 30 is connected with the end of described supporting leg 20, and the other end is connected with stay bearing plate 14.
Above this stay bearing plate 14 is described in detail, its function is mainly the support to bulb dimple 12, to play structural booster action.In this preferred implementation, one end of spring 30 is connected with the end of supporting leg 20, and the other end is connected on stay bearing plate 14.Certainly, this spring 30 also can directly be connected on base plate 11, and the present invention is not limited this.
Preferably, on the reinforcing pad of the outermost layer sleeve 21 of described supporting leg 20, be fixed with locating plate 22, the length that this locating plate 22 stretches out downwards from described outermost layer sleeve 21 and the height of described leg disc are basic identical.
Because supporting leg 20 is in the process of work, normally flexible by the sleeve of multilayer.The end of supporting leg 20 innermost layers is fixed with head shoot, and the supporting leg sleeve of internal layer stretches out from outer field supporting leg sleeve.In the time that supporting leg 20 is worked, the sleeve of internal layer extend out to ground from outer layer sleeve, to play the effect of support; And in the time that supporting leg 20 is regained, the sleeve of internal layer is retracted among outer layer sleeve, in this process, thereby leg disc 10 also shrinks thereupon and departs from ground.Because the bulb dimple 12 of leg disc of the present invention is to be arranged on prejudicially on base plate 11, therefore with surface separation after, only have bulb dimple 12 to be connected with supporting leg 20, base plate 11 can the run-off the straights due to Action of Gravity Field, and cannot fix.
After supporting leg 20 is retracted completely, the length of stretching out downwards from described outermost layer sleeve 21 due to this locating plate 22 and the height of described leg disc are basic identical, namely, in the time that supporting leg 20 is retracted completely, between supporting leg 20 and leg disc 10, have two point of connection, one is bulb and being connected of bulb dimple 12, and another is locating plate 22 and being connected of base plate 11, thereby make leg disc 10 in horizontality, and can limit further the rotation of leg disc 10.
Preferably, described locating plate 22 is arranged in a side contrary with eccentric direction of described outermost layer sleeve 21.
From Fig. 1, Fig. 3 and Fig. 4, this locating plate 22 is arranged in a side contrary with eccentric direction of outermost layer sleeve 21, in this preferred implementation, is namely arranged on long limit one side that broad ways is far away apart from bulb dimple 12.
In addition, the present invention also provides a kind of engineering truck, and this project vehicle comprises bracing or strutting arrangement, and wherein, this bracing or strutting arrangement is bracing or strutting arrangement of the present invention.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned detailed description of the invention, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, also can carry out combination in any between various embodiment of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (7)
1. a leg disc (10), this leg disc comprises base plate (11), bulb dimple (12) and cover plate (13), described bulb dimple (12) is fixedly installed on described base plate (11), described bulb dimple (12) and cover plate (13) link together by attaching parts, it is characterized in that, it is upper that described bulb dimple (12) is arranged on described base plate (11) prejudicially, and described base plate (11) is oblong, and described bulb dimple (12) arranges prejudicially on Width.
2. leg disc according to claim 1, is characterized in that, is provided with multiple stay bearing plates (14) that also radially extend perpendicular to described base plate (11) around described bulb dimple (12).
3. a bracing or strutting arrangement, this bracing or strutting arrangement comprises the leg disc (10) and the supporting leg (20) that link together, it is characterized in that, described leg disc is according to the leg disc (10) described in the claims 1, and described base plate (11) is connected by symmetrical in the longitudinal direction spring (30) with described supporting leg (20).
4. bracing or strutting arrangement according to claim 3, is characterized in that, is provided with multiple stay bearing plates (14) around described bulb dimple (12), and one end of described spring (30) is connected with the end of described supporting leg (20), and the other end is connected with stay bearing plate (14).
5. according to the bracing or strutting arrangement described in claim 3 or 4, it is characterized in that, on the reinforcing pad of the outermost layer sleeve (21) of described supporting leg (20), be fixed with locating plate (22), the length that this locating plate (22) stretches out downwards from described outermost layer sleeve (21) and the height of described leg disc are basic identical.
6. bracing or strutting arrangement according to claim 5, is characterized in that, described locating plate (22) is arranged in a side contrary with eccentric direction of described outermost layer sleeve (21).
7. an engineering truck, this project vehicle comprises bracing or strutting arrangement, it is characterized in that, this bracing or strutting arrangement is the bracing or strutting arrangement described in any one in the claims 3-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396007.6A CN102514549B (en) | 2011-12-02 | 2011-12-02 | Supporting leg disc, supporting device and engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110396007.6A CN102514549B (en) | 2011-12-02 | 2011-12-02 | Supporting leg disc, supporting device and engineering vehicle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102514549A CN102514549A (en) | 2012-06-27 |
| CN102514549B true CN102514549B (en) | 2014-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110396007.6A Active CN102514549B (en) | 2011-12-02 | 2011-12-02 | Supporting leg disc, supporting device and engineering vehicle |
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| CN (1) | CN102514549B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103010178B (en) * | 2012-12-06 | 2015-08-26 | 长沙中联消防机械有限公司 | Leg disc and there is bracing or strutting arrangement and the engineering truck of this supporting disk |
| CN104176018A (en) * | 2014-09-01 | 2014-12-03 | 四川长江工程起重机有限责任公司 | Compound support leg disk mounting device for engineering vehicle |
| CN107934792A (en) * | 2017-12-29 | 2018-04-20 | 徐州徐工随车起重机有限公司 | A kind of lorry-mounted crane vertical leg locking and detecting system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0234423A2 (en) * | 1986-02-14 | 1987-09-02 | Haacon Hebetechnik GmbH | Support for a semi-trailer adjustable in height |
| CN201362562Y (en) * | 2008-11-14 | 2009-12-16 | 四川长江工程起重机有限责任公司 | Position-adjusting supporting foot disc of crane |
| CN201882823U (en) * | 2010-11-24 | 2011-06-29 | 徐州重型机械有限公司 | Supporting leg plate mechanism with automatic position adjusting function |
-
2011
- 2011-12-02 CN CN201110396007.6A patent/CN102514549B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0234423A2 (en) * | 1986-02-14 | 1987-09-02 | Haacon Hebetechnik GmbH | Support for a semi-trailer adjustable in height |
| CN201362562Y (en) * | 2008-11-14 | 2009-12-16 | 四川长江工程起重机有限责任公司 | Position-adjusting supporting foot disc of crane |
| CN201882823U (en) * | 2010-11-24 | 2011-06-29 | 徐州重型机械有限公司 | Supporting leg plate mechanism with automatic position adjusting function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102514549A (en) | 2012-06-27 |
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Address after: 410200 No. 997, Section 2, Tengfei Road, Wangcheng District, Changsha City, Hunan Province Patentee after: Hunan Zoomlion emergency equipment Co., Ltd Address before: 410013 Zhonglian Science Park, 361 yinpen South Road, Changsha, Hunan Patentee before: Changsha Zhonglian fire fighting Machinery Co., Ltd |
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