CN104176018A - Compound support leg disk mounting device for engineering vehicle - Google Patents
Compound support leg disk mounting device for engineering vehicle Download PDFInfo
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- CN104176018A CN104176018A CN201410438371.8A CN201410438371A CN104176018A CN 104176018 A CN104176018 A CN 104176018A CN 201410438371 A CN201410438371 A CN 201410438371A CN 104176018 A CN104176018 A CN 104176018A
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- pin
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- leg disc
- bulb
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Abstract
The invention discloses a compound support leg disk mounting device for an engineering vehicle. A support leg disk comprises a bottom plate and bulb recesses, the tops of the bulb recesses are fixedly connected with a sliding frame, the sliding frame comprises two parallel spaced channel steels and a connecting plate for connecting the two channel steels, notches of the two channel steels are opposite, the rear ends of lower leg plates of the two channel steels are connected with the bulb recesses on two sides of a spherical groove, waist plates of the two channel steels are provided with three groups of pin holes, pins are arranged in two groups of pin holes, a bolt is arranged at one end of each pin, a bracket is fixedly connected onto a support leg cylinder corresponding to the support leg disk and provided with a supporting plate, two suspension pin bosses are arranged in the rear of a vehicle chassis, and bolts are arranged at the outer ends of the two suspension pin bosses. The compound support leg disk mounting device has the advantages of simple structure, rapidness in adjustment and fine universality, the minimum ground distance, the passing angle and the departure angle of the engineering vehicle are increased, and the site adaptability and the cross-country running performance of the engineering vehicle are improved.
Description
Technical field
The present invention relates to a kind of combined type leg disc erecting device for engineering truck.
Background technology
In engineering truck, such as hoisting crane, aerial platform, fire extinguishing tanker etc., in order to keep car body balance, conventionally need to use bracing or strutting arrangement, such as structures such as using movable supporting legs, support to keep balance, 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.
Leg disc is generally arranged on the circular bulb of support oil cylinder, is applied to the pressure of ground or backing plate in order to reduce engineering truck, prevents land subsidence, reliable and stable while guaranteeing engineering truck operation, and the size of leg disc is conventionally larger.
In order to improve the job stabilization of engineering truck, conventionally horizontal support legs is accomplished to maximum overall width as far as possible, therefore the outward flange of the leg disc of vehicle body both sides is after supporting leg bounces back completely, not only leg disc exceeds car load width, and to the minimum ground clearance of engineering truck, all impact by angle and departure angle.
For the width of vehicle is controlled 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 engineering truck, and the horizontal span of supporting leg is the important parameter that affects engineering truck transaction capabilities, particularly in big-and-middle-sized engineering truck, for the key of the design of supporting construction, be that the horizontal span supporting leg is designed to optimum in vehicle width allowed band.
In order to improve the minimum ground clearance of vehicle, by angle, departure angle, usually the suspension of engineering truck is improved, and then the height of gravitational center of raising vehicle, and the lifting of height of gravitational center, not only affect the riding stability of vehicle, also affect the job stabilization of engineering truck, the height of engineering truck is subject to the restriction of road rules equally.
In the prior art, though conventional, can plug-type leg disc can realize leg disc is pushed within the scope of vehicle width, but short transverse can not regulate, and the installation site of leg disc is single, need frequent operation leg disc, when engineering truck enters motoring condition by operating condition, for the special Active workings of engineering truck, its lower minimum ground clearance, by angle and departure angle, all may cause the intermittence of vehicle to lose efficacy, also can affect transfer and the land locomotion performance of vehicle.
Summary of the invention
The object of the invention is for prior art above shortcomings, a kind of combined type leg disc erecting device of engineering truck is provided, it have advantages of simple in structure, adjust quick, commonality is good, working time and the working strength of carrying and installation leg disc have greatly been saved, and can effectively utilize the limited space of vehicle, increased the minimum ground clearance of engineering truck, by angle and departure angle, improved place comformability and the land locomotion performance of engineering truck.
For achieving the above object, the combined type leg disc erecting device of engineering truck of the present invention, comprises support oil cylinder and leg disc, and leg disc comprises base plate and the bulb dimple connecting firmly, bulb dimple top is provided with ball recess, it is characterized in that: base plate is provided with two installation pin-and-holes; At bulb dimple top, be fixedly connected with balladeur train, balladeur train comprises two parallel and spaced channel-section steels, connects the connecting panel of two channel-section steel front ends, the notch of two channel-section steels is oppositely arranged, the downside leg plate rear end of two channel-section steels connects with the bulb dimple of ball recess both sides, the back of two channel-section steels is provided with three groups of pin-and-holes, and wherein two groups of pin-and-holes are positioned at the both sides of ball recess, and another group pin-and-hole is positioned at the place ahead of these two groups of pin-and-holes, in two groups of pin-and-holes, be provided with bearing pin therein, in one end of every bearing pin, be equipped with latch; On support oil cylinder corresponding to leg disc, be fixedly connected with bracket, bracket is provided with the stay bearing plate coordinating with the upside leg plate of two channel-section steels, and the width of stay bearing plate is greater than the spacing of two channel-section steel epipleurals; At vehicle chassis rear portion, be provided with the two suspension key seats that coordinate with two installation pin-and-holes, two outer ends that hang key seats are provided with latch.
Said structure can be realized three kinds of Installation Modes of leg disc: 1) engineering truck is when land locomotion, two mount pin borehole jacks on leg disc base plate hang on key seat in two of vehicle chassis rear portion, and with latch by leg disc locking, can effectively utilize the limited space of vehicle like this, now leg disc is suspended on chassis, terrain clearance is the highest, and maximum by angle and departure angle, now vehicle can carry out land locomotion; 2) job engineering vehicle is when long distance shifts, now two channel-section steels of balladeur train slide and are placed on the semicircle bulb of support oil cylinder piston rod, promote leg disc and slide to vehicle center, sledge slide is entered on the stay bearing plate of bracket, to support two channel-section steels, make leg disc keep balance, and use two bearing pins insert in semicircle bulb rear near two groups of pin-and-holes of two backs in, by leg disc locking, now the terrain clearance of base plate is minimum, vehicle can be grown distance and shift, and adapts to road running requirement; 3) job engineering vehicle is when short range is shifted, now the semicircle bulb of piston rod is arranged in the ball recess of bulb dimple, two bearing pins insert in two groups of pin-and-holes of ball recess both sides, now leg disc is suspended on semicircle bulb by two bearing pins, vehicle width is wider than design overall width, now the terrain clearance of base plate is higher than job engineering vehicle when long distance shifts, and in place permission situation, vehicle can carry out short range transfer tasks and not need leg disc to carry out any operation.
As a further improvement on the present invention, on described connecting panel, be fixedly connected with handgrip; Be convenient to leg disc to operate;
As a further improvement on the present invention, two heads that hang key seat are provided with boss, and it is noncircular pin hole that two of base plate is installed pin-and-hole, and each noncircular pin hole comprises two connected Different Diameter circular holes, all latches are resilient pin, are convenient to leg disc to be loaded on two suspension key seats and the mounting or dismounting of anticreep and latch;
In sum, that the present invention has advantages of is simple in structure, it is quick to adjust, commonality is good, working time and the working strength of carrying and installation leg disc have greatly been saved, and can effectively utilize the limited space of vehicle, increased the minimum ground clearance of engineering truck, by angle and departure angle, improved place comformability and the land locomotion performance of engineering truck.
Accompanying drawing explanation
Use view of the present invention when Fig. 1 is the long distance transfer of job engineering vehicle;
Use view of the present invention when Fig. 2 is job engineering vehicle short range transfer;
Fig. 3 is the birds-eye view of Fig. 2;
Fig. 4 is engineering truck use view of the present invention while carrying out land locomotion;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the connection diagram of bracket and support oil cylinder;
Fig. 7 is the structural representation of balladeur train in the present invention;
Fig. 8 is the right elevation of Fig. 7;
Fig. 9 is two schematic diagrams that hang bearing pins on chassis in the present invention;
Figure 10 is the left view of Fig. 9;
Figure 11 is the schematic diagram of leg disc and departure angle relation in the present invention;
Figure 12 is leg disc and minimum ground clearance and by the schematic diagram of angular dependence in the present invention.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is further detailed explanation.
As shown in Figures 1 to 12, the combined type leg disc erecting device of this project vehicle, comprise support oil cylinder 16 and leg disc 1, leg disc 1 comprises base plate 3 and the bulb dimple 2 that welding connects firmly, bulb dimple 2 tops are provided with ball recess, base plate 3 is provided with two noncircular pin holes 5, and each noncircular pin hole 5 comprises two connected Different Diameter circular holes, at bulb dimple 2 tops, be fixedly connected with balladeur train 6, balladeur train 6 comprises two parallel and spaced channel-section steels 7, the connecting panel 8 that connects two channel-section steel 7 front ends, be fixed on the handgrip 9 on connecting panel 8, the notch of two channel-section steels 7 is oppositely arranged, the downside leg plate rear end of two channel-section steels 7 and 2 welding of the bulb dimple of ball recess both sides, the back of two channel-section steels 7 is provided with three groups of pin-and-holes, two groups of pin-and-holes 10 wherein, 11 are positioned at the both sides of ball recess, another group pin-and-hole 12 is positioned at the place ahead of these two groups of pin-and-holes, in two groups of pin-and-holes, be provided with bearing pin 13 therein, in one end of every bearing pin 13, be equipped with resilient pin 15, on the support oil cylinder 16 of leg disc 1 correspondence, be fixedly connected with bracket 17, bracket 17 is provided with the stay bearing plate 18 coordinating with the upside leg plate of two channel-section steels 7, and the width of stay bearing plate 18 is greater than the spacing of two channel-section steel 7 epipleurals, at vehicle chassis 19 rear portions, be provided with two heads that hang key seat 20, two suspension key seats 20 that coordinate with two noncircular pin holes 5 and be provided with boss, its outer end is provided with resilient pin 21.
This combined type leg disc erecting device can be realized three kinds of Installation Modes of leg disc 1: 1) engineering truck is when land locomotion, as shown in Figures 4 to 6, two noncircular pin holes 5 on the base plate 3 of leg disc 1 are placed on two of vehicle chassis 19 rear portions and hang on key seat 20, resilient pin 21 is by leg disc 1 locking, can effectively utilize the limited space of vehicle like this, now leg disc 1 is suspended on chassis 19, and terrain clearance is h3, maximum by angle and departure angle; 2) job engineering vehicle is when long distance shifts, as shown in Figure 1, now two channel-section steels 7 of balladeur train 6 slide and are placed on the semicircle bulb 22 of support oil cylinder 16 piston rods, promoting leg disc 1 slides to vehicle center, balladeur train 6 is slipped on the stay bearing plate of bracket 17, to support two channel-section steels 7, make leg disc 1 keep balance, and use two bearing pins 13 insert in semicircle bulb 22 rears near two groups of pin-and-holes 11,12 of two backs in, by leg disc 1 locking, now the terrain clearance of base plate 3 is h1, and vehicle can be grown distance and shift, and adapts to road running requirement; 3) job engineering vehicle is when short range is shifted, as shown in Figure 2 to Figure 3, now the semicircle bulb 22 of piston rod is arranged in the ball recess of bulb dimple 2, two bearing pins 13 insert in two groups of pin-and-holes 11,12 of ball recess both sides, now leg disc 1 is suspended on semicircle bulb 22 by two bearing pins 13, vehicle width is wider than design overall width, now the terrain clearance of base plate 3 is h2, in place permission situation, vehicle can carry out short range transfer tasks and not need leg disc 1 to carry out any operation; When above-mentioned three kinds of operating modes, h3>h2>h1;
In the present invention, leg disc 1 on the impact of departure angle as shown in figure 11, departure angle when the leg disc 1 of engineering truck is suspended on the semicircle bulb 22 of oil cylinder is α 1, departure angle when the leg disc 1 of engineering truck is suspended on chassis 19 is α 2, visible departure angle α 2> α 1;
In the present invention, leg disc 1 on minimum ground clearance and the impact by angle as shown in figure 12, minimum ground clearance when the leg disc 1 of engineering truck is suspended on the semicircle bulb 22 of oil cylinder and by angle, be respectively h1(h2) and β 1, minimum ground clearance when the leg disc 1 of engineering truck is suspended on chassis 19 and be respectively h3 and β 2 by angle, visible minimum ground clearance h3>h2>h1, ramp breakover angle β 2> β 1.
That the present invention has advantages of is simple in structure, it is quick to adjust, commonality is good, working time and the working strength of carrying and installation leg disc have greatly been saved, and can effectively utilize the limited space of vehicle, than the single mounting means of original leg disc, the minimum ground clearance of engineering truck, by angle and departure angle, promote to some extent, improved place comformability and the land locomotion performance of engineering truck.
Claims (3)
1. a combined type leg disc erecting device for engineering truck, comprises support oil cylinder and leg disc, and leg disc comprises base plate and the bulb dimple connecting firmly, and bulb dimple top is provided with ball recess, it is characterized in that: base plate is provided with two installation pin-and-holes; At bulb dimple top, be fixedly connected with balladeur train, balladeur train comprises two parallel and spaced channel-section steels, connects the connecting panel of two channel-section steel front ends, the notch of two channel-section steels is oppositely arranged, the downside leg plate rear end of two channel-section steels connects with the bulb dimple of ball recess both sides, the back of two channel-section steels is provided with three groups of pin-and-holes, and wherein two groups of pin-and-holes are positioned at the both sides of ball recess, and another group pin-and-hole is positioned at the place ahead of these two groups of pin-and-holes, in two groups of pin-and-holes, be provided with bearing pin therein, in one end of every bearing pin, be equipped with latch; On support oil cylinder corresponding to leg disc, be fixedly connected with bracket, bracket is provided with the stay bearing plate coordinating with the upside leg plate of two channel-section steels, and the width of stay bearing plate is greater than the spacing of two channel-section steel epipleurals; At vehicle chassis rear portion, be provided with the two suspension key seats that coordinate with two installation pin-and-holes, two outer ends that hang key seats are provided with latch.
2. the combined type leg disc erecting device of engineering truck as claimed in claim 1, is characterized in that being fixedly connected with handgrip on described connecting panel.
3. the combined type leg disc erecting device of engineering truck as claimed in claim 1 or 2, the head that it is characterized in that two suspension key seats is provided with boss, it is noncircular pin hole that two of base plate is installed pin-and-hole, and each noncircular pin hole comprises two connected Different Diameter circular holes, and all latches are resilient pin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438371.8A CN104176018A (en) | 2014-09-01 | 2014-09-01 | Compound support leg disk mounting device for engineering vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410438371.8A CN104176018A (en) | 2014-09-01 | 2014-09-01 | Compound support leg disk mounting device for engineering vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104176018A true CN104176018A (en) | 2014-12-03 |
Family
ID=51957469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410438371.8A Pending CN104176018A (en) | 2014-09-01 | 2014-09-01 | Compound support leg disk mounting device for engineering vehicle |
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| CN (1) | CN104176018A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102358584A (en) * | 2011-10-20 | 2012-02-22 | 徐州重型机械有限公司 | Engineering machinery and support leg thereof |
| CN102416933A (en) * | 2010-09-28 | 2012-04-18 | 徐州重型机械有限公司 | Construction machinery chassis and supporting leg supporting device thereof |
| CN102514549A (en) * | 2011-12-02 | 2012-06-27 | 长沙中联消防机械有限公司 | Supporting leg disc, supporting device and engineering vehicle |
| DE202012005856U1 (en) * | 2012-06-14 | 2012-07-27 | Bernhard Sommer | Support cylinder foldable |
| CN203294080U (en) * | 2013-05-10 | 2013-11-20 | 三一汽车制造有限公司 | Supporting leg seat, supporting leg and engineering machinery |
| CN203295091U (en) * | 2013-05-10 | 2013-11-20 | 北汽福田汽车股份有限公司 | Supporting leg disc assembly |
| CN204136961U (en) * | 2014-09-01 | 2015-02-04 | 四川长江工程起重机有限责任公司 | The combined type leg disc erecting device of engineering truck |
-
2014
- 2014-09-01 CN CN201410438371.8A patent/CN104176018A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102416933A (en) * | 2010-09-28 | 2012-04-18 | 徐州重型机械有限公司 | Construction machinery chassis and supporting leg supporting device thereof |
| CN102358584A (en) * | 2011-10-20 | 2012-02-22 | 徐州重型机械有限公司 | Engineering machinery and support leg thereof |
| CN102514549A (en) * | 2011-12-02 | 2012-06-27 | 长沙中联消防机械有限公司 | Supporting leg disc, supporting device and engineering vehicle |
| DE202012005856U1 (en) * | 2012-06-14 | 2012-07-27 | Bernhard Sommer | Support cylinder foldable |
| CN203294080U (en) * | 2013-05-10 | 2013-11-20 | 三一汽车制造有限公司 | Supporting leg seat, supporting leg and engineering machinery |
| CN203295091U (en) * | 2013-05-10 | 2013-11-20 | 北汽福田汽车股份有限公司 | Supporting leg disc assembly |
| CN204136961U (en) * | 2014-09-01 | 2015-02-04 | 四川长江工程起重机有限责任公司 | The combined type leg disc erecting device of engineering truck |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141203 |
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| RJ01 | Rejection of invention patent application after publication |