CN102862615A - Wheel-crawler-variable chassis - Google Patents
Wheel-crawler-variable chassis Download PDFInfo
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- CN102862615A CN102862615A CN2012103240671A CN201210324067A CN102862615A CN 102862615 A CN102862615 A CN 102862615A CN 2012103240671 A CN2012103240671 A CN 2012103240671A CN 201210324067 A CN201210324067 A CN 201210324067A CN 102862615 A CN102862615 A CN 102862615A
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Abstract
The invention provides a wheel-crawler-variable chassis which comprises a crawler belt module, a wheel type module and a support leg module, wherein the crawler belt module comprises a crawler belt walking bracket, a crawler belt walking mechanism and a rotary neck, the support leg module comprises a support leg bracket and four support legs; the wheel type module comprises a front wheel module and a back wheel module; and a front hanger bracket comprises a hanger bracket upper support, a hanger bracket lower support, a furcated ring, a leveling oil cylinder and a leveling oil cylinder installing block. According to the wheel crawler-variable chassis, the novel wheel crawler-variable chassis structure aiming at emergency rescue can be realized, so that the heavy rescue engineering machinery can realize the flexible switching between the tire type walking and the crawler belt walking according to different road conditions. According to the novel wheel crawler-variable chassis, the rescue engineering machinery can quickly hurry to the disaster field due to the quick motion capability of the tire type walking mode when disaster strikes, and can be conveniently switched into the crawler belt type walking type to carry out the rescue according to the condition of road surface in the process of rescuing, and the rescue can be carried out by unfolding the support legs when necessary.
Description
Technical field
The present invention relates to engineering machinery field, specifically a kind of the wheel carried out the convertible chassis.
Background technology
The running gear of the heavy engineering machineries such as hydraulic excavator is the support section of whole machinery, counter-force when it bears mechanical deadweight and equipment work, can stably support on the ground when making machine work, can make again simultaneously machinery operation and transfer building site in the work-yard, the running gear of excavating machine has concurrently and supports and move two large functions, and the running gear of hydraulic excavator can be divided into crawler type and rubber-tyred two large classes by the structure difference at present.The characteristics of crawler belt industrial and commercial bank walking apparatus are, propulsive effort large (propulsive effort of every crawler belt can reach the heavy 35%-45% of machine usually), connect specific pressure little (40-150kPa), thereby off-road capability and good stability, hill climbing ability (is generally 50%-80% greatly, maximum reaches 100%), and turn radius is little, and alerting ability is good.But the cterpillar drive manufacturing cost is high, and running velocity is low, and consumption of power is large when moving and turning to, and parts depreciation is fast.Therefore, need by other transport vehicles during long distance running.The rubber-tyred running gear is compared with crawler-mounted, and advantage is that running velocity is fast, manoevreability good, and tire does not damage the road surface during operation, thereby is popular in urban construction, and shortcoming is that grounding pressure is large, and hill climbing ability is little.Need to support to guarantee with special supporting leg stability and the safety of excavating machine during digging operation.
In the present construction machinery and equipment, the chassis of especially rescuing in the construction machinery and equipment is simple rubber-tyred chassis or caterpillar chassis, when disaster occurs, the rescue construction machinery and equipment of rubber-tyred can arrive at rapidly disaster and occur on-the-spot, but under the abominable state of ground of rescue site, the disaster relief operation of the rescue construction machinery and equipment of rubber-tyred is inconvenience very; And crawler type rescue construction machinery and equipment is very strong for the abominable state of ground comformability of rescue site, but can not be very fast when disaster occurs rush towards rescue site.
Summary of the invention
The technical matters that solves
The present invention is directed to the pros and cons of tire and cterpillar drive, proposed a kind of the wheel and carried out the convertible chassis, can switch easily and efficiently walking manner according to job requirements and road surface situation, realize rapid movement.Can accomplish to rush towards rapidly the scene for rescue and relief work, launch easily rescue work.
Technical scheme
Technical scheme of the present invention is:
Described a kind of the wheel carried out the convertible chassis, it is characterized in that: comprise track module, wheeled module and supporting leg module;
Described track module comprises crawler travel frame, creeper undercarriage and revolution neck; Two secondary creeper undercarriages respectively symmetry are installed in the crawler travel frame left and right sides, and top, crawler travel frame middle part is fixed with the revolution neck, and described revolution neck is used for being connected with upper body;
Described supporting leg module comprises supporting rack and fourth officer supporting leg; There is manhole at described supporting rack center, and described manhole internal diameter is identical with revolution neck external diameter, and supporting rack is enclosed within on the revolution neck, and captives joint with the revolution neck; Described supporting rack is square structure, and four jiaos of supporting racks have pan; Supporting leg comprises the large arm of horizontal supporting leg, horizontal supporting leg forearm, the large arm of vertical legs, vertical legs forearm and leg, laterally the large arm of supporting leg is connected with laterally the supporting leg forearm is flexible, the large arm of vertical legs is connected with the vertical legs forearm is flexible, the pan chain connection that horizontal supporting leg large arm end and supporting rack are one jiao, the large arm of horizontal supporting leg can be rotated around vertical direction, laterally the supporting leg forearm is captiveed joint with the large arm of vertical legs is vertical, captives joint with leg in vertical legs forearm end;
Described wheeled module comprises front-wheel module and trailing wheel module; Described front-wheel module comprises that the front-wheel shoe switches oil cylinder, front axle bracket, front suspension and propons; Described trailing wheel module comprises that the trailing wheel shoe switches oil cylinder, rear axle stand, rear suspension and back axle; Front-wheel module and trailing wheel module are installed in respectively the both sides, front and back of crawler travel frame; Front-wheel is carried out and is switched oil cylinder one end and supporting rack front side chain connection, and front-wheel is carried out and switched the oil cylinder other end and front axle bracket upside chain connection; Front axle bracket one end and crawler travel frame front side chain connection, the front axle bracket other end is captiveed joint with front suspension, carries out the switching oil cylinder by front-wheel and shrinks or extend and can lift or put down front axle bracket and front suspension; Front suspension is captiveed joint with propons, propons two ends mounting tyre; Trailing wheel is carried out and is switched oil cylinder one end and supporting rack rear side chain connection, and trailing wheel is carried out and switched the oil cylinder other end and rear axle stand upside chain connection; Rear axle stand one end and crawler travel frame rear side chain connection, the rear axle stand other end is captiveed joint with rear suspension, carries out the switching oil cylinder by trailing wheel and shrinks or extend and can lift or put down rear axle stand and rear suspension; Rear suspension is captiveed joint with back axle, back axle two ends mounting tyre;
Described front suspension comprises suspension upper bracket, suspension lower bracket, fork ring, leveling cyclinder and leveling cyclinder mounting blocks; Suspension upper bracket top and front axle bracket welding, suspension upper bracket lower central and suspension lower bracket center upper portion are hinged by bearing pin; The leveling cyclinder mounting blocks is fixed on the front axle bracket left and right sides, and leveling cyclinder is fixedly mounted on the leveling cyclinder mounting blocks, and the leveling cyclinder lower end is hinged by fork ring and suspension lower bracket; Captive joint with propons in suspension lower bracket bottom.
Beneficial effect
The present invention has the following advantages and the high-lighting effect: the present invention has realized a kind of novel shoe convertible chassis structure of taking turns for rescue, makes heavy rescue construction machinery and equipment realize that rubber-tyred is walked and the flexible switchings of crawler-type traveling according to road conditions are different.This novel take turns carry out the convertible chassis can be when disaster occurs, make the rescue construction machinery and equipment use the quick travel ability of rubber-tyred walking manner to rush towards rapidly the disaster scene, can switch to easily the crawler-type traveling mode according to the road surface situation again in the process of the disaster relief and launch rescue, in case of necessity, open support leg device and carry out rescue work.
Description of drawings
Fig. 1: front view of the present invention;
Fig. 2: front elevation of the present invention;
Fig. 3: birds-eye view of the present invention;
Fig. 4: crawler travel frame scheme drawing;
Fig. 5: supporting rack scheme drawing;
Fig. 6: supporting leg scheme drawing;
Fig. 7: horizontal supporting leg forearm scheme drawing;
Fig. 8: the large arm scheme drawing of vertical legs;
Fig. 9: front suspension structure scheme drawing;
Figure 10: rear suspension structure scheme drawing;
Figure 11: the operation scheme drawing makes a jack;
Figure 12: wheel tyre walking scheme drawing;
Figure 13: crawler travel scheme drawing.
Wherein: 1, crawler travel frame; 2, revolution neck; 3, supporting rack; 4, supporting leg; 5, front-wheel is carried out and is switched oil cylinder; 6, front axle bracket; 7, front suspension; 8, propons; 9, trailing wheel is carried out and is switched oil cylinder; 10, rear axle stand; 11, rear suspension; 12, back axle; 13, front axle bracket hinge; 14, rear axle stand hinge; 15, through hole; 16, supporting leg hinge; 17, front-wheel is carried out and is switched the oil cylinder hinge; 18, trailing wheel is carried out and is switched the oil cylinder hinge; 19, the horizontal large arm of supporting leg; 20, horizontal supporting leg forearm; 21, the large arm of vertical legs; 22, vertical legs forearm; 23, leg; 24, leveling cyclinder mounting blocks; 25, leveling cyclinder; 26, fork ring; 27, suspension upper bracket; 28, suspension lower bracket; 29, Connection Block.
The specific embodiment
Below in conjunction with specific embodiment the present invention is described:
Embodiment:
A kind of wheel the in the present embodiment carried out the convertible chassis, is the left-right symmetric structure, includes track module, wheeled module and supporting leg module.
To accompanying drawing 3, track module comprises crawler travel frame 1, creeper undercarriage and revolution neck 2 with reference to accompanying drawing 1; The supporting leg module comprises supporting rack 3 and fourth officer supporting leg 4; Wheeled module comprises front-wheel module and trailing wheel module, and the front-wheel module comprises that the front-wheel shoe switches oil cylinder 5, front axle bracket 6, front suspension 7 and propons 8, and the trailing wheel module comprises that the trailing wheel shoe switches oil cylinder 9, rear axle stand 10, rear suspension 11 and back axle 12.
With reference to accompanying drawing 4, crawler travel frame 1 is the panel beating single piece, is with by the four-wheel one of track frame and standard to form.Revolution neck 2 is weldingly fixed on top, crawler travel frame middle part as the connecting device of crawler travel frame 1 with upper body.Two secondary creeper undercarriages respectively symmetry are installed in the crawler travel frame left and right sides.
Different from common Integral underframe is, crawler travel frame middle part X-type plate portion is for convenient layout front axle bracket hinge 13 and rear axle stand hinge 14, and the front and rear part of X-type plate lengthens.Will grow than common revolution neck and turn round simultaneously neck 2, be used for welding supporting rack 3, carry out the distance increase of switching oil cylinder hinge and front (afterwards) crane span structure hinge so that front (afterwards) takes turns, it is better to make front (afterwards) wheel carry out the force-bearing situation that switches oil cylinder.
With reference to accompanying drawing 5, supporting rack 3 integral body are square box, and inside is provided with reinforced rib, and there is manhole 15 at the supporting rack center, and the manhole internal diameter is identical with revolution neck external diameter, and by this manhole, supporting rack is enclosed within on the revolution neck, and is welded and fixed with the revolution neck.
8 pans are arranged on the supporting rack, wherein 4 supporting leg hinges 16 are distributed in four jiaos of square support legs frame, be connected with supporting leg 4 respectively, 2 front-wheels are carried out switching oil cylinder hinge 17 and are positioned at the supporting rack front side, carrying out the switching oil cylinder with 1 front-wheel respectively is connected, 2 trailing wheels are carried out switching oil cylinder hinge 18 and are positioned at the supporting rack rear side, carry out the switching oil cylinder with 1 trailing wheel respectively and are connected.
With reference to accompanying drawing 6, supporting leg comprises the large arm 19 of horizontal supporting leg, horizontal supporting leg forearm 20, vertical legs large arm 21, vertical legs forearm 22 and leg 23.Wherein laterally the large arm of supporting leg is connected with laterally the supporting leg forearm is flexible, and the large arm of vertical legs is connected with the vertical legs forearm is flexible.The horizontal supporting leg forearm 20 transversely inner bin of the large arm 19 of supporting leg is done the transversal stretching motion, vertical legs forearm 22 can be done vertical fore and aft motion along the inner bin of the large arm 21 of vertical legs, laterally supporting leg forearm 20 is realized Bolt Connection by flanged plate and the large arm 21 of vertical legs, and leg 23 connects with vertical legs forearm 22 by bearing pin.The supporting leg chain connection that horizontal supporting leg large arm end and supporting rack are one jiao can rotate around vertical direction the large arm of horizontal supporting leg.Each supporting leg 4 has respectively 3 degree of freedom, is respectively the transversal stretching motion of supporting leg, the vertical fore and aft motion of supporting leg, and whole supporting leg is around the rotational motion of vertical direction.
Wheeled module comprises front-wheel module and trailing wheel module, and the front-wheel module comprises that the front-wheel shoe switches oil cylinder 5, front axle bracket 6, front suspension 7 and propons 8, and the trailing wheel module comprises that the trailing wheel shoe switches oil cylinder 9, rear axle stand 10, rear suspension 11 and back axle 12.Front-wheel module and trailing wheel module are installed in respectively the both sides, front and back of crawler travel frame.
Front-wheel shoe switching oil cylinder 5, front axle bracket 6, trailing wheel are carried out switching oil cylinder 9, rear axle stand 10 is major parts that rubber-tyred traveling gear and crawler type walking mechanism switch mutually, suspension is crane span structure and the link of taking turns bridge, take front suspension 7 as example, front suspension 7 is connected with front axle bracket 6 by welding, front suspension 7 is bolted with propons 8 and is connected, and plays simultaneously the effect of leveling and bumper and absorbing shock.Propons 8 is support sections of rubber-tyred walking with back axle 12.
The front-rear axle shelf structure is identical, take front axle bracket 6 as example, front axle bracket 6 integral body are the square chest structure, round tube hole and the front axle bracket hinge 13 of crawler travel frame of front axle bracket by self rear portion is hinged, front axle bracket is hinged by the cylinder rod of carrying out switching oil cylinder 5 from hinge and the front-wheel of body, front-wheel is carried out the switching oil cylinder other end and is connected with the front-wheel shoe switching oil cylinder hinge 17 of supporting rack front side, form a spandrel frame, carry out the fore and aft motion that switches oil cylinder 5 by front-wheel and realize that front axle bracket 6 is around the swing of front axle bracket hinge 13, the front axle bracket other end is captiveed joint with front suspension, front suspension is captiveed joint with propons, propons two ends mounting tyre.When front axle bracket 6 during around the swing of front axle bracket hinge 13, front axle bracket drives propons 8 up-and-down movements, thereby realizes the switching of running on wheels and crawler travel mode.
The key distinction of front-wheel module and trailing wheel module is front suspension and rear suspension.
As shown in Figure 9, front suspension is half elasticity independent suspension.Structure left-right symmetric, described front suspension comprise 25,4 leveling cyclinder mounting blocks 24 of 26,2 leveling cyclinders of 28,2 fork rings of 27,1 suspension lower brackets of 1 suspension upper bracket.Suspension upper bracket top and front axle bracket welding, suspension upper bracket lower central and suspension lower bracket center upper portion are hinged by bearing pin; The leveling cyclinder mounting blocks is fixed on the front axle bracket left and right sides, and leveling cyclinder is fixedly mounted on the leveling cyclinder mounting blocks, and the leveling cyclinder lower end is hinged by the hinge ear on fork ring and the suspension lower bracket 28; Captive joint with the propons bolt in suspension lower bracket bottom.
Concrete, leveling cyclinder mounting blocks 24 is by 2 otic placodes in left side, and 2 triangle fixed plates on middle 1 connecting panel and right side form.Otic placode is used for being connected with leveling cyclinder connection, and connecting panel is connected being connected with front axle bracket connection with the triangle brace panel.The through hole on fork ring 26 tops is for being connected the cylinder rod connection with leveling cyclinder, the hinge of the fork-shaped of bottom is for be connected the connection of hinge ear with the suspension lower bracket.Suspension upper bracket 27 is comprised of the rectangular connecting panel on top and two leg-of-mutton risers of bottom, and the rectangular slab on suspension upper bracket 27 tops is used for and front axle bracket 6 welding, and two risers of bottom are used for suspension lower bracket 28 hinged.Suspension lower bracket 28 is by two leg-of-mutton risers on top, two otic placodes of the rectangular connecting panel of bottom and both sides, middle part form, wherein two triangle risers on suspension lower bracket 28 tops are used for suspension upper bracket 27 hinged, the oblong connecting panel of bottom each side has four bolts hole, be used for being connected with the propons bolt, two of the left and right sides, middle part cut with scissors ears and are respectively applied to be connected with fork ring connection.
During running on wheels, wheel runs into and jolts, because the hinged effect of suspension upper bracket 27 and suspension lower bracket 28, propons and suspension lower bracket rotate around the suspension upper bracket, the leveling cyclinder compression of the wheel homonymy of raising, the simultaneously oil cylinder of opposite side elongation because leveling cyclinder has to a certain degree played the effect of bumper and absorbing shock, thereby has guaranteed the stability that car load moves.
With reference to accompanying drawing 10, rear suspension is the rigidity independent suspension.Be used for connecting rear axle stand and back axle.Rear suspension is comprised of two symmetrical two Connection Blocks 29, and Connection Block is comprised of the triangle contiguous block on top and the oblique contiguous block of bottom, and tiltedly contiguous block is welded by three blocks of diagonal bar plates at two block length square plates and middle part up and down.
With reference to accompanying drawing 11, machinery is in supporting leg support works state, at this moment, front-wheel is carried out and is switched oil cylinder 5 contractions, drive propons 8 by front axle bracket 6 and front suspension 7 and make front-wheel be in upwards collapsed state, trailing wheel is carried out and is switched oil cylinder 9 contractions, by rear axle stand 10, rear suspension 11 drives back axle 12 and makes trailing wheel be in upwards collapsed state.Simultaneously, 4 supporting legs are showed,, the downwards elongation outside according to operating environment condition of each leg section, and supporting leg distributes radially.Be convenient to the machinery operation of being correlated with.
With reference to accompanying drawing 12, machinery is in the tire walking states, at this moment, front-wheel is carried out and is switched oil cylinder 5 elongations, drive propons 8 by front axle bracket 6 and front suspension 7 and make front-wheel be in downward holding state, trailing wheel is carried out and is switched oil cylinder 9 elongations, by rear axle stand 10, rear suspension 11 drives back axle 12 and makes trailing wheel be in downward holding state.Simultaneously, 4 each leg sections of supporting leg are in contraction state, and 4 supporting legs draw in respectively in the middle of crawler travel frame 1 and front-wheel module and trailing wheel module.Make that whole mechanical movement speed is fast, manoevreability good, tire does not damage the road surface during operation.
With reference to accompanying drawing 13, machinery is in the crawler travel state, at this moment, front-wheel is carried out and is switched oil cylinder 5 contractions, drive propons 8 by front axle bracket 6 and front suspension 7 and make front-wheel be in upwards collapsed state, trailing wheel is carried out and is switched oil cylinder 9 contractions, by rear axle stand 10, rear suspension 11 drives back axle 12 and makes trailing wheel be in upwards collapsed state.Simultaneously, 4 each leg sections of supporting leg are in contraction state, and 4 supporting legs draw in respectively in the middle of crawler travel frame 1 and front-wheel module and trailing wheel module.Crawler belt ground connection, compact conformation, stability and good cross-country ability.
Wheeled and the concrete scheme of the switching crawler-type traveling mode is, when crawler travel switches to the wheel tyre walking, at first, 2 front-wheels shoes that are in contraction state switch oil cylinder and extend under the promotion of hydraulic pressure, pass through front axle bracket, the promotion propons moves down, and makes the crawler belt front end liftoff, and crawler belt rear end and front-wheel are in holding state; Then, 2 trailing wheels shoes that are in contraction state switch oil cylinder and extend under the promotion of hydraulic pressure, pass through rear axle stand, the promotion back axle moves down, make the crawler belt rear end liftoff, front-wheel and trailing wheel are in holding state, thereby finish by the switching of crawler-type traveling to the rubber-tyred walking.When the wheel tyre walking switches to crawler travel, at first, 2 trailing wheels that are in elongation state are carried out the pressure release of switching oil cylinder, under Action of Gravity Field, whole mechanical latter half moves down, until crawler belt rear end kiss the earth, at this moment, crawler belt rear end and front-wheel are in holding state, 2 trailing wheels are carried out and are switched oil cylinder continuation contraction, by rear axle stand, the pulling back axle moves up, and makes 2 trailing wheels finally be in collapsed state; Then, 2 front-wheels that are in elongation state are carried out the pressure release of switching oil cylinder, under Action of Gravity Field, whole mechanical first half moves down, until crawler belt front end kiss the earth, at this moment, whole crawler belt is in holding state, and 2 front-wheels are carried out and switched oil cylinder continuation contraction, pass through front axle bracket, the pulling propons moves up, and finishes by the switching of rubber-tyred walking to crawler-type traveling thereby make 2 front-wheels finally be in collapsed state.
Claims (1)
1. a wheel is carried out the convertible chassis, it is characterized in that: comprise track module, wheeled module and supporting leg module;
Described track module comprises crawler travel frame, creeper undercarriage and revolution neck; Two secondary creeper undercarriages respectively symmetry are installed in the crawler travel frame left and right sides, and top, crawler travel frame middle part is fixed with the revolution neck, and described revolution neck is used for being connected with upper body;
Described supporting leg module comprises supporting rack and fourth officer supporting leg; There is manhole at described supporting rack center, and described manhole internal diameter is identical with revolution neck external diameter, and supporting rack is enclosed within on the revolution neck, and captives joint with the revolution neck; Described supporting rack is square structure, and four jiaos of supporting racks have pan; Supporting leg comprises the large arm of horizontal supporting leg, horizontal supporting leg forearm, the large arm of vertical legs, vertical legs forearm and leg, laterally the large arm of supporting leg is connected with laterally the supporting leg forearm is flexible, the large arm of vertical legs is connected with the vertical legs forearm is flexible, the pan chain connection that horizontal supporting leg large arm end and supporting rack are one jiao, the large arm of horizontal supporting leg can be rotated around vertical direction, laterally the supporting leg forearm is captiveed joint with the large arm of vertical legs is vertical, captives joint with leg in vertical legs forearm end;
Described wheeled module comprises front-wheel module and trailing wheel module; Described front-wheel module comprises that the front-wheel shoe switches oil cylinder, front axle bracket, front suspension and propons; Described trailing wheel module comprises that the trailing wheel shoe switches oil cylinder, rear axle stand, rear suspension and back axle; Front-wheel module and trailing wheel module are installed in respectively the both sides, front and back of crawler travel frame; Front-wheel is carried out and is switched oil cylinder one end and supporting rack front side chain connection, and front-wheel is carried out and switched the oil cylinder other end and front axle bracket upside chain connection; Front axle bracket one end and crawler travel frame front side chain connection, the front axle bracket other end is captiveed joint with front suspension, carries out the switching oil cylinder by front-wheel and shrinks or extend and can lift or put down front axle bracket and front suspension; Front suspension is captiveed joint with propons, propons two ends mounting tyre; Trailing wheel is carried out and is switched oil cylinder one end and supporting rack rear side chain connection, and trailing wheel is carried out and switched the oil cylinder other end and rear axle stand upside chain connection; Rear axle stand one end and crawler travel frame rear side chain connection, the rear axle stand other end is captiveed joint with rear suspension, carries out the switching oil cylinder by trailing wheel and shrinks or extend and can lift or put down rear axle stand and rear suspension; Rear suspension is captiveed joint with back axle, back axle two ends mounting tyre;
Described front suspension comprises suspension upper bracket, suspension lower bracket, fork ring, leveling cyclinder and leveling cyclinder mounting blocks; Suspension upper bracket top and front axle bracket welding, suspension upper bracket lower central and suspension lower bracket center upper portion are hinged by bearing pin; The leveling cyclinder mounting blocks is fixed on the front axle bracket left and right sides, and leveling cyclinder is fixedly mounted on the leveling cyclinder mounting blocks, and the leveling cyclinder lower end is hinged by fork ring and suspension lower bracket; Captive joint with propons in suspension lower bracket bottom.
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| CN201210324067.1A CN102862615B (en) | 2012-09-05 | 2012-09-05 | Wheel-crawler-variable chassis |
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| CN201210324067.1A CN102862615B (en) | 2012-09-05 | 2012-09-05 | Wheel-crawler-variable chassis |
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| CN104477267A (en) * | 2014-12-18 | 2015-04-01 | 浙江三一装备有限公司 | Base, traveling device and crawler crane |
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