CN209505897U - Can up/down steps crawler-type carrying cart - Google Patents

Abstract

The utility model provide it is a kind of can up/down steps crawler-type carrying cart, including vehicle-mounted chassis, loading hopper on vehicle-mounted chassis, it is respectively arranged on the crawler unit of vehicle-mounted chassis two sides, for providing the driving device of power for crawler unit, and the support mechanism for being supported on stair-step, each crawler unit includes the carrier on vehicle-mounted chassis, enclose the crawler belt set on carrier periphery, and it is rotatably dispose in the driving wheel on carrier and being located in crawler belt respectively, directive wheel and tensioning wheel, driving wheel, directive wheel and tensioning wheel are arranged on carrier at obtuse triangle, and the plane where directive wheel and tensioning wheel is parallel with the plane where vehicle-mounted chassis.The utility model solves traditional carrier and is only applicable in level walking, the lesser slope of the upper and lower gradient, stair-step section (such as climbing going upstairs) traveling is not adapted to, limits the problem of carrier plays the carrying function of cargo under the road conditions of the up/down steps such as stair channel.

Description

Can up/down steps crawler-type carrying cart

Technical field

The utility model belongs to carrier technical field, more specifically, be related to it is a kind of can up/down steps crawler type Carrier.

Background technique

Booming with modern logistics industry with advances in technology, carrier is transporting small sized product and cargo in batch In played important function.However, during carrier carrying small-sized product and cargo, for carrier traveling place simultaneously Always not smooth cement road or asphalt road also has slope section, rough bumpy section and stair-step road Section, traditional carrier are only applicable in level walking, the lesser slope of the upper and lower gradient, cannot be in rough bumpy section row It sails, does not adapt to stair-step section (such as when climbing going upstairs) traveling especially, it is logical in stair that this just seriously limits carrier The carrying function that product and cargo are played under the road conditions of the up/down steps such as road, is unable to satisfy the carrying of modern logistics product and cargo It is required that.

Utility model content

The purpose of this utility model is to provide it is a kind of can up/down steps crawler-type carrying cart, to solve in the prior art Existing carrier is only applicable in level walking, the lesser slope of the upper and lower gradient, cannot be in rough bumpy sections of road, especially It does not adapt to stair-step section (such as when climbing going upstairs) traveling, limits carrier in up/down steps such as stair channels The carrying function that product and cargo are played under road conditions is unable to satisfy the problem of carrying of modern logistics product and cargo requires.

To achieve the above object, the technical solution adopted in the utility model be to provide it is a kind of can the crawler types of up/down steps remove Vehicle is transported, including vehicle-mounted chassis, the loading hopper being set on the vehicle-mounted chassis, is respectively arranged at the vehicle-mounted chassis along described The crawler unit of carrier driving direction two sides, the driving device for providing power for the crawler unit, with And the support mechanism for being supported on stair-step, each crawler unit include being set on the vehicle-mounted chassis Carrier, enclose set on the carrier periphery crawler belt and be rotatably dispose on the carrier respectively and be located at the shoe Driving wheel, directive wheel and tensioning wheel in band, the driving wheel, the directive wheel and the tensioning wheel are arranged at obtuse triangle It is flat in the plane on the carrier, and where the directive wheel and the tensioning wheel and the plane where the vehicle-mounted chassis Row；The support mechanism includes weight bearing roller wheels component for pressing on the crawler belt on the stair-step and is used for The spring vibration-damping component of elastic counter-active effect is played to the weight bearing roller wheels component, the weight bearing roller wheels component is set to described hold Position on carrier and among the corresponding directive wheel and the tensioning wheel.

Further, the quantity of the weight bearing roller wheels component is set as two groups, and weight bearing roller wheels component described in two groups is opposite to be set It sets, and is correspondingly provided with the escape groove to concave for the crawler belt on the bottom surface of the carrier.

Further, the groove face of the escape groove is arranged to guide ramp.

Further, the weight bearing roller wheels component include respectively by pivot knuckles on the carrier linking arm, And rotational installation connects in the idler wheel of described linking arm one end, the rolling surface of the idler wheel and the medial surface rolling of the crawler belt Touching, the other end of the linking arm are connected with the spring vibration-damping component.

Further, the carrier further includes the telescoping mechanism for preventing loading hopper run-off the straight, described flexible Mechanism include the electric cylinders being set on the vehicle-mounted chassis, one end sliding be inserted in the sleeve of the electric cylinders telescopic rod, with And the driving motor that the driving telescopic rod stretches in the sleeve of the electric cylinders, the sleeve of the electric cylinders and the vehicle-mounted chassis Hingedly, the other end of the telescopic rod and the loading hopper are cut with scissors, and the bottom of the loading hopper and the vehicle-mounted chassis rotate Connection.

Further, the carrier further includes the auxiliary device for loading and unloading object, and the auxiliary device includes being placed in Elevating mechanism on the vehicle-mounted chassis and the hoisting mechanism being set on the elevating mechanism.

Further, the elevating mechanism includes being set on the vehicle-mounted chassis and having the first of longitudinal direction tube chamber to stand The slide bar being inserted in the longitudinal direction tube chamber is slided in column and one end, and the other end of the slide bar is connected with the hoisting mechanism.

Further, the elevating mechanism further includes link assembly, the Yi Jiyu for positioning the slide bar lifting position Second column of the first column parallel interval setting, the bottom end of second column is set on the vehicle-mounted chassis；Institute Stating link assembly, to include first connecting rod that one end is connect with the top of dormitory slide bar and one end another with the first connecting rod Hinged second connecting rod is held, the other end of the second connecting rod connecting rod and the bottom end of second column are hinged.

Further, the elevating mechanism further includes for the slide bar is outer from the interior bottom of longitudinal direction tube chamber direction The spring that portion jacks up.

Further, the hoisting mechanism includes the power-assisted arm component being connected with the slide bar at right angle and is set to Lifting rope component on the power-assisted arm component, the power-assisted arm component include with the connecting rod top rotation connection crossbeam, with And the connector sleeve on the crossbeam can be slidably and movingly sheathed on along the length direction of the crossbeam, the lifting rope component is set to The one end of the connector sleeve far from the slide bar.

It is provided by the utility model can the crawler-type carrying cart of up/down steps and the beneficial effect of electronic cigarette be: with it is existing Technology is compared, it is provided by the utility model can up/down steps crawler-type carrying cart, on vehicle-mounted chassis along carrier driving direction The crawler unit of two sides, crawler unit include the carrier being set on vehicle-mounted chassis, enclose set on carrier periphery Crawler belt and the driving wheel, directive wheel and the tensioning wheel that are rotatably dispose on carrier and are located in crawler belt respectively, and will driving Wheel, directive wheel and tensioning wheel are arranged on carrier at obtuse triangle, and are arranged in the middle position of directive wheel and tensioning wheel There is the weight bearing roller wheels component for pressing on crawler belt on stair-step and be used to play elasticity to weight bearing roller wheels component and supports The spring vibration-damping component of effect, by the load-bearing for being set to the position (center of carrier) among directive wheel and tensioning wheel Roll wheel assembly plays a supporting role to the center of gravity of carrier, avoids carrier in stair climbing step since center of gravity is in stress not The unstable phenomenon of seesaw type occurs for the state of balance；Also, bottom top is put when preventing carrier in stair climbing step While winnowing with a dustpan, weight bearing roller wheels component elasticity can also be pressed on crawler belt by spring vibration-damping component, crawler belt is in weight bearing roller wheels group The elastic bearing effect of part is lower to be close to staircase step step, so that slipping phenomenon will not occur between crawler belt and stair-step, It ensure that safety and stability travel operation of the carrier in up/down steps.The utility model carrier be used to not only smooth Road surface applies also for slope section, rough bumpy section and stair-step section, especially in stair-step section (such as when climbing going upstairs) traveling, with good stability and stationarity.

Detailed description of the invention

It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new Some embodiments of type for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 be it is provided by the embodiment of the utility model can up/down steps crawler-type carrying cart schematic perspective view One；

Fig. 2 be it is provided by the embodiment of the utility model can up/down steps crawler-type carrying cart schematic perspective view Two；

Fig. 3 be it is provided by the embodiment of the utility model can up/down steps crawler-type carrying cart schematic perspective view Three；

Fig. 4 be it is provided by the embodiment of the utility model can up/down steps crawler-type carrying cart schematic perspective view four (climbing building driving status in going up or down stairway step).

Specific embodiment

In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein It applies example to be only used to explain the utility model, is not used to limit the utility model.

It should be noted that it can be directly another when element is referred to as " being fixed on " or " being set to " another element On one element or indirectly on another element.When an element is known as " being connected to " another element, it can To be directly to another element or be indirectly connected on another element.

In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or Implicitly include one or more of the features.The meaning of " plurality " is two or two in the description of the present invention, More than, unless otherwise specifically defined." several " are meant that one or more, unless otherwise clearly specific limit It is fixed.

In the description of the present invention, it should be understood that term " center ", " length ", " width ", " thickness ", The orientation of the instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" or Positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, Rather than the device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, because This should not be understood as limiting the present invention.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements or the interaction relationship of two elements.For those of ordinary skill in the art and Speech, can understand the concrete meaning of above-mentioned term in the present invention as the case may be.

Also referring to Fig. 1 to Fig. 4, now to it is provided by the utility model can the crawler-type carrying carts of up/down steps say It is bright.Including vehicle-mounted chassis 1, be set to vehicle-mounted the One On The Chassis loading hopper 2, be respectively arranged at vehicle-mounted chassis 1 along carrier travel 32 running gear 3 of crawler belt of direction two sides, the driving device for providing power for 32 running gear 3 of crawler belt and for branch It holds in the support mechanism 4 on stair-step, each 32 running gear 3 of crawler belt includes being set to vehicle-mounted the One On The Chassis carrier 31, enclosing It is rotatably dispose in set on the peripheral crawler belt 32 of carrier 31 and respectively the driving wheel on carrier 31 and being located in crawler belt 32 33, directive wheel 34 and tensioning wheel 35, driving wheel 33, directive wheel 34 and tensioning wheel 35 are arranged in carrier 31 at obtuse triangle On, and the plane where directive wheel 34 and tensioning wheel 35 is parallel with the plane where vehicle-mounted chassis 1；Support mechanism 4 includes being used for By weight bearing roller wheels component 41 that crawler belt 32 presses on stair-step and it is used to play elasticity to weight bearing roller wheels component 41 and supports The spring vibration-damping component 42 of effect, weight bearing roller wheels component 41, which is set on carrier 31, to be corresponded among directive wheel 34 and tensioning wheel 35 Position.

Preferably, the driving motor that driving device is rotated using driving driving wheel 33.

It is provided by the utility model can up/down steps crawler-type carrying cart basic functional principle: by directive wheel 34 with Crawler belt 32 is stretched the walking inclined-plane to be formed and be layed on stair-step by tensioning wheel 35, and step is become inclined-plane, to pass through Driving device drives 32 running gear 3 of crawler belt to drive carrier walking, makes carrier in the road conditions of the up/down steps such as stair channel The lower carrying function of playing product and cargo.In carrier in stair climbing step, it is located among directive wheel 34 and tensioning wheel 35 The weight bearing roller wheels component 41 of position (center of carrier) play a supporting role to the center of gravity of carrier, weight bearing roller wheels group Part 41 avoids carrier in stair climbing step (such as Fig. 4) under the cushioning buffer effect of spring vibration-damping component 42, due to carrying The center of gravity of vehicle center is in the state of force unbalance, and Vehicular body front occurs, and quickly lower cultivation (or tilting), rear vehicle are stuck up Playing the unstable phenomenon of seesaw type of (or lower cultivation), it is therefore prevented that carrier puts bottom in stair climbing step and jolts, and 41 elasticity of weight bearing roller wheels component is pressed on crawler belt 32 using spring vibration-damping component 42, crawler belt 32 is in weight bearing roller wheels component 41 Elastic bearing effect is lower to be close to staircase step step, slipping phenomenon will not occur, ensure that carrier safety and stability climbs building Travel operation.

It is provided by the utility model can up/down steps crawler-type carrying cart, compared with prior art, the utility model mentions Supply can up/down steps crawler-type carrying cart, on vehicle-mounted chassis 1 along 32 running gear of crawler belt of carrier driving direction two sides 3,32 running gear 3 of crawler belt include be set to vehicle-mounted the One On The Chassis carrier 31, enclose the crawler belt 32 set on the periphery of carrier 31, And it is rotatably dispose in driving wheel 33, directive wheel 34 and the tensioning wheel 35 on carrier 31 and being located in crawler belt 32 respectively, and will Driving wheel 33, directive wheel 34 and tensioning wheel 35 are arranged on carrier 31 at obtuse triangle, and in directive wheel 34 and tensioning wheel 35 middle position is provided with the weight bearing roller wheels component 41 for pressing on crawler belt 32 on stair-step and is used for load-bearing Roll wheel assembly 41 plays the spring vibration-damping component 42 of elastic counter-active effect, by being set to 35 centre of directive wheel 34 and tensioning wheel The weight bearing roller wheels component 41 of position (center of carrier) plays a supporting role to the center of gravity of carrier, and carrier is avoided to exist Since the unstable phenomenon of seesaw type occurs for the state that center of gravity is in force unbalance when stair climbing step；Also, it is preventing It, can also be by spring vibration-damping component 42 by weight bearing roller wheels component 41 while carrier puts bottom in stair climbing step and jolts Elasticity presses on crawler belt 32, and crawler belt 32 is close under the elastic bearing effect of weight bearing roller wheels component 41 with staircase step step, So that slipping phenomenon will not occur between crawler belt 32 and stair-step, safety and stability row of the carrier in up/down steps ensure that Sail work.

Further, referring to Figure 2 together, as it is provided by the utility model can up/down steps crawler-type carrying cart Specific embodiment, the quantity of weight bearing roller wheels component 41 are set as two groups, and two groups of weight bearing roller wheels components 41 are oppositely arranged, and carry The escape groove 311 to concave for crawler belt 32 is correspondingly provided on the bottom surface of frame 31.In carrier stair climbing step, two groups of load-bearing Roll wheel assembly 41 is supported the center of gravity of carrier, while causing crawler belt 32 to concave by the corner angle contact of stair-step Into contacting crawler belt 32 will not with the bottom surface of carrier 31 during concaving and put due to the setting of escape groove 311 Bottom, and the center of gravity of carrier is reduced, improve the stability of up/down steps.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove Transport vehicle specific embodiment, weight bearing roller wheels component 41 include respectively by pivot knuckles on carrier 31 linking arm 411, And rotational installation, in the idler wheel 412 of 411 one end of linking arm, the medial surface of the rolling surface and crawler belt 32 of idler wheel 412 is in rolling contact, The other end of linking arm 411 is connected with spring vibration-damping component 42.When work, spring vibration-damping component 42 is another to linking arm 411 End forms elastic top and instead uses, and linking arm 411 and pivot form leverage principle, by the idler wheel 412 of one end of linking arm 411 It presses on the medial surface of crawler belt 32, crawler belt 32 is close to staircase step step under effect in compressing for idler wheel 412, so that crawler belt Slipping phenomenon will not occur between 32 and stair-step, ensure that safety and stability travel operation of the carrier in up/down steps.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove The specific embodiment of vehicle is transported, the groove face of escape groove 311 is arranged to guide ramp, to prevent by two groups of weight bearing roller wheels components When the center of gravity of 41 pairs of carriers is supported, the corner angle of stair-step form contact to crawler belt 32 and the contact carrying of crawler belt 32 occur The bottom surface of frame 31, causing friction even crawler belt 32 and bearing seat, there is a phenomenon where put bottom and stuck.

Further, referring to Figure 2 together and Fig. 4, as it is provided by the utility model can the crawler types of up/down steps remove The specific embodiment of vehicle is transported, carrier further includes the telescoping mechanism for preventing 2 run-off the straight of loading hopper, telescoping mechanism packet It includes and is set to vehicle-mounted the One On The Chassis electric cylinders 5, the telescopic rod and driving telescopic rod that one end sliding is inserted in the sleeve of electric cylinders 5 The driving motor to stretch in the sleeve of electric cylinders 5, the sleeve of electric cylinders 5 and vehicle-mounted chassis 1 are hinged, the other end of telescopic rod and loading Hopper 2 is hinged, and the bottom of loading hopper 2 is rotatablely connected so that loading hopper 2 may be reversed by rotating mechanism 8 and vehicle-mounted chassis 1 Ground is set on vehicle-mounted chassis 1.It is provided with telescoping mechanism, when work, since 32 formula carrier of crawler belt is in going up or down stairway step, Vehicle can follow the gradient of stair oblique, and drive telescopic rod telescopic adjustment in the sleeve of electric cylinders 5 by driving motor, So that loading hopper 2 is remained horizontality, avoids the object carried in carrier loading hopper 2 inclined with the gradient of stair Shape, to prevent center of gravity imbalance when loading 2 loading of hopper that the object in carrier rollover and loading hopper 2 is easy to cause to fall It falls.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove The specific embodiment of vehicle is transported, carrier further includes the auxiliary device for loading and unloading object, and auxiliary device includes being placed in vehicle-mounted bottom Elevating mechanism 6 on disk 1 and the hoisting mechanism 7 being set on elevating mechanism 6 pass through elevating mechanism 6 and hoisting mechanism 7 Cooperation, heavier object can be loaded and unloaded by auxiliary device, mitigate the labor intensity of operator, improve Articles transfer Efficiency.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove Transport the specific embodiment of vehicle, elevating mechanism 6 include be set on vehicle-mounted chassis 1 and the first column 61 with longitudinal direction tube chamber, And the slide bar 62 being inserted in the longitudinal direction tube chamber of the first column 61, the other end and 7 phase of hoisting mechanism of slide bar 62 are slided in one end Even.By slide bar 62 in the mobile lifting for realizing hoisting mechanism 7 of longitudinal direction tube chamber sliding of the first column 61, pass through elevating mechanism 6 With the cooperation of hoisting mechanism 7, heavier object can be loaded and unloaded by auxiliary device, mitigate the labor intensity of operator, Improve the efficiency of Articles transfer.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove Transport the specific embodiment of vehicle, elevating mechanism 6 further includes for the link assembly 63 of 62 lifting position of locating slide rod and with the Second column 64 of one column, 61 parallel interval setting, the bottom end of the second column 64 is set on vehicle-mounted chassis 1；Link assembly 63 The other end of the first connecting rod 631 being connect including one end with the top of slide bar 62 and one end and first connecting rod 631 it is hinged the Two connecting rods 632, the other end of second connecting rod 632 and the bottom end of the second column 64 are hinged.In use, only needing to first connecting rod 631 apply thrust with the hinged place of second connecting rod 632, make first connecting rod 631 and second connecting rod 632 at 180 ° of coaxial opening, The first connecting rod 631 and second connecting rod 632 coaxially opened form gusseted to slide bar 62, so that slide bar 62 is positioned at completely The position of 61 longitudinal direction tube chamber of the first column is stretched out, and then is reached the raised purpose of hoisting mechanism 7, and realize that hoisting mechanism 7 is right Higher-height object carries out lifting handling.It when not in use, only need to be to the hinged place to first connecting rod 631 and second connecting rod 632 Apply thrust, by first connecting rod 631 and the vertical folding in 90 ° of second connecting rod 632, can slide bar 62 be positioned at and be fully retracted the The normal handling work of carrier is realized in the position of one column, 61 longitudinal direction tube chamber, and simple and ingenious structure is easy to operate easily-controllable, real It is preferable with property.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove The specific embodiment of vehicle is transported, guide chute is additionally provided on the lateral wall of 61 longitudinal direction tube chamber of the first column, correspondence is set on slide bar 62 There is the guide runner with guide chute cooperation, by the cooperation of guide runner and guiding guide chute, makes slide bar 62 can only be along First column, 61 longitudinal direction tube chamber occurs length travel and rotates in a circumferential direction without generating, and improves the stability of the lifting of elevating mechanism 6, It avoids damaging link assembly 63 since slide bar 62 rotates in 61 longitudinal direction tube chamber of the first column.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove Transport the specific embodiment of vehicle, elevating mechanism 6 further include for by slide bar 62 from the interior bottom of the longitudinal direction tube chamber of the first column 61 Towards the external spring (not indicated in figure) jacked up, the slide bar 62 in 61 longitudinal direction tube chamber of the first column is played by spring and is subtracted The effect for shaking buffering avoids slide bar 62 from falling excessive velocities at present in the downslide of lumen along longitudinal direction and causes stronger vibration, while benefit With the elastic potential energy of spring realize more laborsavingly slide bar 62 along longitudinal direction on lumen it is sliding, mitigate labor intensity when lifting.

Further, please refer to figs. 2 and 3 together, as it is provided by the utility model can the crawler types of up/down steps remove The specific embodiment of vehicle is transported, hoisting mechanism 7 includes that the power-assisted arm component 71 being connected with slide bar 62 at right angle and being set to helps Lifting rope component 72 on arm of force component 71, power-assisted arm component 71 include with connecting rod top rotation connection crossbeam 711, can be along crossbeam 711 length direction is slidably and movingly sheathed on the connector sleeve 712 on crossbeam 711, and crossbeam 711 is connected with slide bar 62 at right angle, Lifting rope component 72 is set to the one end of connector sleeve 712 far from slide bar 62.In use, passing through 61 longitudinal pipe of slide bar 62 and the first column The lifting of the vertical height of lifting rope component 72 is realized in being slidably matched for chamber, realizes lifting rope by the cooperation of crossbeam 711 and connector sleeve 712 The telescopic of 72 horizontal direction of component realizes lifting rope component 72 in plane by the rotation connection of connecting rod top and crossbeam 711 It is rotated within the scope of 360 degree, so as to which the object of different location, different height is lifted or unloaded using lifting rope component 72 Under, enhance the multifunctionality and versatility of carrier.

Specifically, please refer to figs. 2 and 3 together, as it is provided by the utility model can up/down steps crawler type carry The specific embodiment of vehicle, lifting rope component 72 include for the reel 721 of winding lifting rope, for driving 721 elevator wiring of reel Lifting motor 722, the lifting rope 723 on winding reel 721 and the suspension hook 724 for being set to lifting rope one end.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. one kind can up/down steps crawler-type carrying cart, it is characterised in that: including vehicle-mounted chassis, be set to the vehicle-mounted chassis On loading hopper, be respectively arranged at the vehicle-mounted chassis along carrier driving direction two sides crawler unit, use In the driving device for providing power for the crawler unit and the load-bearing machine for being supported on stair-step Structure, each crawler unit include the carrier being set on the vehicle-mounted chassis, enclose the crawler belt set on the carrier periphery, And it is rotatably dispose in driving wheel, directive wheel and the tensioning wheel on the carrier and being located on the inside of the crawler belt respectively, it is described Driving wheel, the directive wheel and the tensioning wheel are arranged on the carrier at obtuse triangle, and the directive wheel and institute Plane where stating tensioning wheel is parallel with the plane where the vehicle-mounted chassis；The support mechanism includes for by the crawler belt The weight bearing roller wheels component that presses on the stair-step and for playing elastic counter-active effect to the weight bearing roller wheels component Spring vibration-damping component, the weight bearing roller wheels component is set on the carrier and the corresponding directive wheel and the tensioning wheel Intermediate position.

2. as described in claim 1 can up/down steps crawler-type carrying cart, it is characterised in that: the weight bearing roller wheels component Quantity is set as two groups, and weight bearing roller wheels component described in two groups is oppositely arranged, and is correspondingly provided with confession on the bottom surface of the carrier The escape groove that the crawler belt concaves.

3. as claimed in claim 2 can up/down steps crawler-type carrying cart, it is characterised in that: the groove face of the escape groove is set It is set to guide ramp.

4. as described in claim 1 can up/down steps crawler-type carrying cart, it is characterised in that: the weight bearing roller wheels component packet It includes and passes through pivot knuckles respectively in the linking arm on the carrier and be rotatablely installed in the idler wheel of described linking arm one end, The rolling surface of the idler wheel and the medial surface of the crawler belt are in rolling contact, the other end of the linking arm and the spring shock absorption group Part is connected.

5. as described in claim 1 can up/down steps crawler-type carrying cart, it is characterised in that: the carrier further include use In the telescoping mechanism for preventing loading hopper run-off the straight, the telescoping mechanism include the electric cylinders being set on the vehicle-mounted chassis, The telescopic rod and the driving telescopic rod that one end sliding is inserted in the sleeve of the electric cylinders are stretched in the sleeve of the electric cylinders The driving motor of contracting, the sleeve of the electric cylinders and the vehicle-mounted chassis are hinged, the other end of the telescopic rod and the loading material Bucket is hinged, and the bottom of the loading hopper and the vehicle-mounted chassis are rotatablely connected.

6. as described in claim 1 can up/down steps crawler-type carrying cart, it is characterised in that: the carrier further include use In the auxiliary device of handling object, the auxiliary device includes the elevating mechanism being placed on the vehicle-mounted chassis and is set to Hoisting mechanism on the elevating mechanism.

7. as claimed in claim 6 can up/down steps crawler-type carrying cart, it is characterised in that: the elevating mechanism include set It is placed on the vehicle-mounted chassis and the first column with longitudinal direction tube chamber and one end sliding is inserted in the longitudinal direction tube chamber Slide bar, the other end of the slide bar are connected with the hoisting mechanism.

8. as claimed in claim 7 can up/down steps crawler-type carrying cart, it is characterised in that: the elevating mechanism further includes The second column for positioning the link assembly of the slide bar lifting position and with the first column parallel interval setting, The bottom end of second column is set on the vehicle-mounted chassis；The link assembly includes the top company of one end and dormitory slide bar The hinged second connecting rod of the other end of the first connecting rod connect and one end and the first connecting rod, the second connecting rod it is another It holds hinged with the bottom end of second column.

9. as claimed in claim 8 can up/down steps crawler-type carrying cart, it is characterised in that: the elevating mechanism further includes Spring for jacking up the slide bar from the interior bottom of the longitudinal direction tube chamber towards outside.

10. as claimed in claim 8 can up/down steps crawler-type carrying cart, it is characterised in that: the hoisting mechanism includes The power-assisted arm component being connected with the slide bar at right angle and the lifting rope component being set on the power-assisted arm component, it is described to help Arm of force component include with the connecting rod top rotation connection crossbeam and can along the crossbeam length direction slidably and movingly The connector sleeve being sheathed on the crossbeam, the lifting rope component are set to the one end of the connector sleeve far from the slide bar.