CN112921764A - Rear driving system of paver and paver - Google Patents
Rear driving system of paver and paver Download PDFInfo
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- CN112921764A CN112921764A CN202110388166.5A CN202110388166A CN112921764A CN 112921764 A CN112921764 A CN 112921764A CN 202110388166 A CN202110388166 A CN 202110388166A CN 112921764 A CN112921764 A CN 112921764A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
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Abstract
The application provides a rear driving system of a paver and the paver. Wherein, paver rear drive system includes: a drive axle; the first driving wheel set is arranged at the rear side of the drive axle and is in transmission connection with the drive axle through a first transmission mechanism; the second driving wheel set is arranged on the front side of the drive axle and is in transmission connection with the drive axle through a second transmission mechanism; and one end of the lifting mechanism is connected with the second driving wheel set, the other end of the lifting mechanism is used for being connected with a frame of the paver, and the lifting mechanism can drive the second driving wheel set to perform lifting motion. According to the technical scheme, different driving modes can be adopted according to different construction requirements and road conditions, the adaptability to different roads can be effectively improved, the slipping is prevented, the running flexibility of the paver is higher, and the influence on the turning performance can be prevented; in addition, two rows of driving wheel groups respectively adopt independent drive mechanism, can prevent mutual interference to reduce the influence that causes efficiency of construction and construction progress.
Description
Technical Field
The application relates to the technical field of pavers, in particular to a rear driving system of a paver and a paver.
Background
At present, a paver is one of the common road-building machines used for road paving operations. The vehicle body of the paver is usually in a rear driving mode, in order to improve the anti-skid performance of rear wheels and the adaptability to the road surface, a four-wheel rear driving system is adopted in some pavers, but the problems of poor turning performance and poor adaptability to uneven road surfaces exist, and the flexibility of the paver is influenced. As shown in fig. 1, a swing frame type rear wheel driving structure 300 for a paver is provided in the prior art, two rows of driving wheels can swing around a driving axle through a swing frame 301, so as to improve the adaptability to the road surface, but the rear driving structure in the scheme is complex, the front row and the rear row of driving wheels simultaneously move during swinging, the improvement effect on the adaptability to the road surface is limited, and the problem of poor flexibility still exists, and the front driving wheel and the rear driving wheel on the same side are driven by a set of chain wheel mechanism, if one of the driving wheels or the driving chain fails, the front driving wheel and the rear driving wheel cannot normally operate, which affects the normal construction operation of the paver.
Disclosure of Invention
According to an embodiment of the present invention, it is intended to improve at least one of technical problems existing in the prior art or the related art.
To this end, it is an object according to an embodiment of the present invention to provide a rear drive system for a paving machine.
It is another object of an embodiment according to the present invention to provide a paving machine.
To achieve the above object, according to an embodiment of a first aspect of the present invention, there is provided a rear drive system of a paving machine, including: a drive axle; the first driving wheel set is arranged at the rear side of the drive axle and is in transmission connection with the drive axle through a first transmission mechanism; the second driving wheel set is arranged on the front side of the drive axle and is in transmission connection with the drive axle through a second transmission mechanism; and one end of the lifting mechanism is connected with the second driving wheel set, the other end of the lifting mechanism is used for being connected with a frame of the paver, and the lifting mechanism can drive the second driving wheel set to perform lifting motion.
According to an embodiment of the first aspect of the invention, the rear driving system of the paver comprises a drive axle, a first driving wheel set, a second driving wheel set, a first transmission mechanism, a second transmission mechanism and a lifting mechanism. The drive axle is used for outputting power; the first driving wheel set and the second driving wheel set are respectively arranged on the rear side and the front side of the drive axle to form a front row and a rear row of driving wheel sets, each row of driving wheel set can comprise two driving wheels, and a four-wheel driving mode can be formed. The first driving wheel set and the driving axle are transmitted through the first transmission mechanism, the second driving wheel set and the driving axle are transmitted through the second transmission mechanism, so that the first driving wheel set and the second driving wheel set are respectively provided with independent transmission mechanisms, and the front driving wheel set and the rear driving wheel set cannot be influenced mutually.
The lifting mechanism is used for driving the second driving wheel set to perform lifting motion, when the lifting mechanism is assembled on the paver, one end of the lifting mechanism is connected with the second driving wheel set, the other end of the lifting mechanism is connected with a frame of the paver, the second driving wheel set is driven to ascend or descend relative to the road surface through the action of the lifting mechanism, and the driving mode can be adjusted according to different construction requirements and different road surface conditions.
For example, when the paver is in a paving operation process, the second driving wheel set can be driven to descend, so that the second driving wheel set and the first driving wheel set work together, the driving force is increased, the anti-skid performance is enhanced, and when the paver meets a road condition with an uneven road surface, the contact state of the second driving wheel set and the road surface can be adjusted at any time through the lifting mechanism to prevent skidding; when the paver is in a non-operation process or a transition process, the second driving wheel set can be driven to ascend through the lifting mechanism, and the paver is driven to run only through the first driving wheel set, so that the running flexibility is improved, and the turning performance is improved.
The rear driving system of the paver in the scheme can adopt different driving modes according to different construction requirements and road surface conditions, can effectively improve the adaptability to different road surfaces and prevent skidding, has higher driving flexibility and can prevent the influence on the turning performance; in addition, two rows of drive wheelsets adopt independent drive mechanism respectively, and when arbitrary drive wheelset broke down wherein, another drive wheelset still can drive the paver and normally travel, can effectively reduce the influence that causes construction efficiency and construction progress.
In addition, the rear driving system of the paver provided in the embodiment of the present invention may also have the following additional technical features:
in the above technical solution, the first driving wheel set includes two first driving wheels, which are respectively disposed corresponding to two ends of the driving axle; the second driving wheel set comprises two second driving wheels which are respectively arranged at the front sides of the two first driving wheels; wherein the second drive wheel is movable forward during ascent and rearward during descent under drive of the lifting mechanism.
In this solution, the first drive wheel set comprises two first drive wheels and correspondingly the second drive wheel set comprises two second drive wheels. The two first driving wheels and the two second driving wheels are respectively arranged corresponding to two ends of the drive axle so as to be in transmission connection with the drive axle; the second driving wheel is located the front side of first driving wheel, and hoist mechanism can drive the second driving wheel and move forward simultaneously at the in-process that rises, and the second driving wheel can move forward to the upper front of first driving wheel promptly, can be with second drive mechanism's connected mode looks adaptation on the one hand, and on the other hand can prevent that the second driving wheel from taking place to interfere with first driving wheel in the lift in-process.
In the above technical solution, the lifting mechanism includes: the two sliding parts are respectively arranged on the inner sides of the two second driving wheels and can be connected with the rack, each sliding part is provided with a sliding chute and a sliding block which are in sliding fit, and the sliding block is rotationally connected with the corresponding second driving wheel; and the two lifting oil cylinders are respectively arranged corresponding to the two sliding parts, and one end of each lifting oil cylinder is connected with the sliding block positioned on the same side so as to drive the sliding block and the second driving wheel to move.
In the technical scheme, the lifting mechanism comprises two sliding parts and two lifting oil cylinders. The sliding part is provided with a sliding chute and a sliding block, and the sliding block is in sliding fit with the sliding chute; the inner side of each second driving wheel is provided with a sliding part, the sliding part is connected with the frame of the paver, and the second driving wheels are rotatably connected with the sliding blocks so as to realize the connection between the second driving wheels and the frame through the sliding parts. The second driving wheel can rotate relative to the sliding piece, and meanwhile, the second driving wheel can slide relative to the sliding groove along with the sliding block. Each lifting oil cylinder is arranged corresponding to one sliding piece, one end of each lifting oil cylinder is connected with the corresponding sliding block, the other end of each lifting oil cylinder extends towards the front side and is connected with the frame of the paver, and therefore the sliding blocks are driven to slide relative to the sliding grooves through the telescopic movement of the lifting oil cylinders, and the second driving wheels are driven to perform lifting movement.
In the above technical solution, the first transmission mechanism includes two first sprocket mechanisms, each first sprocket mechanism includes a first driving wheel, a first driven wheel and a first transmission chain, the first driving wheel is connected to an output end of the drive axle, and the first driven wheel is connected to the first driving wheel; the second transmission mechanism comprises two second chain wheel mechanisms, each second chain wheel mechanism comprises a second driving wheel, a second driven wheel and a second transmission chain, the second driving wheels are connected to the output end of the drive axle, and the second driven wheels are connected to the second driving wheels.
In this solution, the first transmission mechanism comprises two first sprocket mechanisms and the second transmission mechanism comprises two second sprocket mechanisms. Specifically, two first chain wheel mechanisms are respectively arranged corresponding to two first driving wheels, each first chain wheel mechanism comprises a first driving wheel, a first driven wheel and a first transmission chain, and the first transmission chain is meshed with the first driving wheel and the first driven wheel to realize chain transmission; the first driving wheel is connected with the output end of the drive axle, the first driven wheel is connected with the first driving wheel, so that when the drive axle works, power is transmitted to the first driving wheel through the first driving wheel, the first transmission chain and the first driven wheel, the first driving wheel is rotated, and the paver is driven to run.
Similarly, the two second chain wheel mechanisms are respectively arranged corresponding to the two second driving wheels, each second chain wheel mechanism comprises a second driving wheel, a second driven wheel and a second transmission chain, and the second transmission chain is meshed with the second driving wheel and the second driven wheel to realize chain transmission; the second driving wheel is connected with the output end of the drive axle, and the second driven wheel is connected with the second driving wheel, so that when the drive axle works, power is transmitted to the second driving wheel through the second driving wheel, the second transmission chain and the second driven wheel, and the second driving wheel rotates.
In the above technical solution, the first transmission mechanism further includes a first tensioner, and the first tensioner is engaged with the first transmission chain; the first driving wheel group also comprises a telescopic mechanism, the telescopic mechanism comprises two telescopic oil cylinders which are respectively arranged at the inner sides of the two first driving wheels, one end of each telescopic oil cylinder is connected with the first driving wheel positioned at the same side, and the other end of each telescopic oil cylinder is used for being connected with the rack; the telescopic oil cylinder is used for driving the first driving wheel to move back and forth, and the tensioning state of the first transmission chain is adjusted through the first tensioner.
In this technical scheme, through setting up first tensioning ware and telescopic machanism to adjust the tension state of first driving chain, in order to prevent that first driving chain from taking off, be favorable to guaranteeing that first sprocket mechanism can normally transmit power. The telescopic mechanism comprises two telescopic oil cylinders which are respectively arranged corresponding to the inner side of one first driving wheel; one end of the telescopic oil cylinder is connected with the first driving wheel, and the other end of the telescopic oil cylinder extends towards the rear side and is connected with a frame of the spreading machine. The first driving wheel is driven to move in the front-back direction through the telescopic motion of the telescopic oil cylinder so as to change the pressure of the first tensioner acting on the first transmission chain and adjust the tensioning state of the first transmission chain, thereby ensuring the normal transmission of the first chain wheel mechanism.
In the above technical solution, the second transmission mechanism further includes a second tensioner, the second tensioner is provided with a movable tensioning wheel, and the tensioning wheel is matched with the second transmission chain to adjust the tensioning state of the second transmission chain.
In the technical scheme, the second tensioner matched with the second transmission chain is arranged, so that the tension force acting on the second transmission chain is adjusted by utilizing the movement of the tension wheel on the second tensioner relative to the second transmission chain, the tension state of the second transmission chain is adjusted, and the second transmission chain can always keep a proper tension state in the lifting process of the second driving wheel so as to avoid influencing normal transmission.
In the above technical scheme, the rear driving system of the paver further comprises a controller, which is electrically connected with the lifting mechanism and the telescopic mechanism and used for controlling the working of the lifting mechanism and the telescopic mechanism.
In the technical scheme, the controller electrically connected with the lifting mechanism and the telescopic mechanism is arranged to control the lifting mechanism and the telescopic mechanism, so that the telescopic motion of the lifting oil cylinder and the telescopic oil cylinder is controlled, and the positions of the first driving wheel and the second driving wheel are adjusted respectively.
In the technical scheme, the rear driving system of the paver further comprises a tire pressure detection assembly, a tire pressure detection assembly and a tire pressure detection assembly, wherein the tire pressure detection assembly comprises a plurality of tire pressure sensors which are respectively arranged on the two second driving wheels and used for detecting the tire pressures of the second driving wheels; the controller is electrically connected with the tire pressure sensor, and when the second driving wheel set and the first driving wheel set work simultaneously, the controller controls the lifting mechanism to work according to the tire pressure of the second driving wheel so as to drive the second driving wheel to ascend or descend.
In this technical scheme, through setting up tire pressure detection subassembly to detect the tire pressure of drive wheel. The tire pressure detection assembly specifically comprises a plurality of tire pressure sensors, and the tire pressure sensors are respectively arranged on the two second driving wheels so as to respectively detect the tire pressures of the two second driving wheels. The tire pressure sensor is electrically connected with the controller so as to transmit a detection result to the controller; when the second driving wheel set and the first driving wheel set work simultaneously, the controller determines the current tire pressure condition according to the detection result of the tire pressure sensor, and can correspondingly control the lifting mechanism according to the tire pressure condition to drive the second driving wheel to lift, so that the tire pressure of the second driving wheel meets the operation requirement to prevent slipping.
In the above technical scheme, the controller determines the tire pressure of the second driving wheel according to the detection result of the tire pressure sensor, controls the lifting mechanism to drive the second driving wheel to descend when the tire pressure is less than the first tire pressure threshold value, controls the lifting mechanism to drive the second driving wheel to ascend when the tire pressure is greater than the second tire pressure threshold value, and controls the lifting mechanism to keep the current state when the tire pressure is greater than or equal to the first tire pressure threshold value and less than or equal to the second tire pressure threshold value.
In the technical scheme, the controller compares the tire pressure of the second driving wheel with the tire pressure threshold value according to the detection result of the tire pressure sensor. If the tire pressure of the second driving wheel is smaller than the first tire pressure threshold value, the current tire pressure is insufficient, the second driving wheel possibly slips in the operation process, at the moment, the controller controls the lifting oil cylinder to extend out, and drives the second driving wheel to descend so as to increase the pressure between the second driving wheel and the ground and increase the tire pressure of the second driving wheel to meet the operation requirement; if the tire pressure of the second driving wheel is greater than the second tire pressure threshold value, the tire pressure of the second driving wheel is over high, normal construction is not facilitated, and at the moment, the lifting mechanism is controlled to drive the second driving wheel to ascend so as to reduce the tire pressure of the second driving wheel; when the second driving wheel is between the first tire pressure threshold value and the second tire pressure threshold value, the tire pressure reaches the tire pressure range required by the operation, at the moment, the lifting mechanism is controlled to keep the current state without changing the height of the second driving wheel, so that the second driving wheel operates in the current tire pressure state. The first tire pressure threshold value is smaller than the second tire pressure threshold value, and the specific numerical value can be set according to the tire model of the second driving wheel and the specific construction requirement.
Further, can also set up tire pressure sensor on first drive wheel to detect the tire pressure of first drive wheel, the operating personnel of being convenient for in time learns the tire pressure state of first drive wheel, in order to in time adjust when the tire pressure of first drive wheel surpasss normal tire pressure scope.
An embodiment of a second aspect of the invention provides a paving machine comprising: the paver vehicle body is provided with a frame; the rear driving system of the paver in any of the embodiments of the first aspect is disposed at the rear portion of the paver body, a drive axle of the rear driving system of the paver is connected with the paver body, and one end, far away from the second driving wheel set, of a lifting mechanism of the rear driving system of the paver extends to the front side of the second driving wheel set and is connected with the frame.
According to an embodiment of the second aspect of the invention, a paving machine includes a paving machine body and the paving machine rear drive system of any of the embodiments of the first aspect described above. The paver body is used as a main body of the paver, and the running of the paver body drives working devices (such as a screed plate, a hopper and the like) to move, so that paving operation is realized. The rear driving system of the paver is positioned at the rear part of the paver body and specifically comprises a driving axle, a first driving wheel set, a second driving wheel set, a first transmission mechanism, a second transmission mechanism and a lifting mechanism; the drive axle is fixedly connected with the paver body and extends along the transverse direction of the paver body, and output ends are arranged at two ends of the drive axle; the first driving wheel set and the second driving wheel set are arranged below the driving axle, the second driving wheel set is located in front of the first driving wheel set, and the first driving wheel set and the second driving wheel set are in transmission connection with the output end of the driving axle through a first transmission mechanism and a second transmission mechanism respectively so as to drive the first driving wheel set and the second driving wheel set to rotate through the driving axle to drive the spreading machine body to run.
Wherein, hoist mechanism is located the front side of second drive wheelset, and hoist mechanism and frame and second drive wheelset are connected, accessible hoist mechanism drive second drive wheelset carries out elevating movement to adapt to different road conditions, simultaneously can be according to the different construction requirements of paver, adopt different drive methods, for example, promote second drive wheelset, make first drive wheelset individual drive paver automobile body travel, perhaps second drive wheelset descends and contacts with ground, make second drive wheelset and first drive wheelset together drive the paver automobile body and travel.
The paver in the scheme can adopt different driving modes according to different construction requirements and road surface conditions, can effectively improve the adaptability to different road surfaces and prevent skidding, and meanwhile, the paver has higher driving flexibility and can prevent the influence on the turning performance; in addition, two rows of drive wheelsets adopt independent drive mechanism respectively, and when arbitrary drive wheelset broke down wherein, another drive wheelset still can drive the paver and normally travel, can effectively reduce the influence that causes construction efficiency and construction progress.
In addition, the paver in this scheme also has all the beneficial effects of the rear drive system of the paver in the embodiment of the first aspect, which are not described herein again.
Additional aspects and advantages of embodiments of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of embodiments of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 shows a schematic diagram of a prior art swing frame rear wheel drive configuration;
fig. 2 shows a schematic view of a rear drive system of a paving machine according to one embodiment of the invention;
fig. 3 shows a schematic view of part of the structure of a paver according to one embodiment of the invention;
fig. 4 shows a schematic view of a rear drive system of a paving machine according to one embodiment of the invention;
fig. 5 shows a schematic view of a partial structure of a rear drive system of a paving machine according to one embodiment of the invention;
fig. 6 shows a top view of a portion of the structure of a paving machine in accordance with one embodiment of the invention;
FIG. 7 shows a schematic block diagram of electrical connections of a controller according to one embodiment of the present invention;
FIG. 8 illustrates a flow diagram of lift mechanism control logic according to one embodiment of the present invention.
Wherein, the correspondence between the reference numbers and the names of the components in fig. 1 to 7 is as follows:
1 rear driving system of paver, 10 driving axle, 11 first driving wheel set, 111 first driving wheel, 112 telescopic mechanism, 1121 telescopic cylinder, 12 first transmission mechanism, 121 first chain wheel mechanism, 1211 first driving wheel, 1212 first driven wheel, 1213 first transmission chain, 122 first tensioner, 13 second driving wheel set, 131 second driving wheel, 14 second transmission mechanism, 141 second chain wheel mechanism, 1411 second driving wheel, 1412 second driven wheel, 1413 second transmission chain, 142 second tensioner, 15 lifting mechanism, 151 lifting cylinder, 152, 1521 slider, 16 controller, 17 tire pressure detecting component, 171 tire pressure sensor, 2 paver, 21 paver body, 211 frame, 300 pendulum rear wheel driving structure, 301 pendulum frame.
Detailed Description
In order that the above objects, features and advantages of the embodiments according to the present invention can be more clearly understood, embodiments according to the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of embodiments according to the invention, however, embodiments according to the invention may be practiced in other ways than those described herein, and therefore the scope of protection of this application is not limited by the specific embodiments disclosed below.
Paving machine rear drive systems and paving machines according to some embodiments of the present disclosure are described below with reference to fig. 2-8.
Example one
In the present embodiment, a rear driving system 1 of a paver is provided, as shown in fig. 2 and 3, the rear driving system 1 of the paver includes a drive axle 10, a first driving wheel set 11, a second driving wheel set 13, a first transmission mechanism 12, a second transmission mechanism 14, and a lifting mechanism 15.
The drive axle 10 is arranged on the paver body 21 and can output power outwards under the drive of a drive device of the paver body 21; the first driving wheel set 11 is disposed at the rear side of the driving axle 10, and the second driving wheel set 13 is disposed at the front side of the driving axle 10 to form two front and rear rows of driving wheel sets. The first driving wheel set 11 and the second driving wheel set 13 are respectively provided with independent transmission mechanisms, that is, the first driving wheel set 11 is in transmission connection with the drive axle 10 through the first transmission mechanism 12, and the second driving wheel set 13 is in transmission connection with the drive axle 10 through the second transmission mechanism 14, so as to prevent the mutual influence between the front and rear driving wheel sets. Wherein, each row of driving wheel group can comprise two driving wheels, and can form a four-wheel driving mode.
The lifting mechanism 15 is used for driving the second driving wheel set 13 to perform lifting movement, one end of the lifting mechanism 15 is connected with the second driving wheel set 13, and the other end of the lifting mechanism 15 is connected with the frame 211 of the paver body 21; when the lifting mechanism 15 works, the second driving wheel set 13 can be driven to ascend or descend relative to the road surface, so that the driving mode of the paver body 21 can be adjusted according to different construction requirements and different road surface conditions, and the paver body 21 can be driven by a single-row driving wheel or a double-row driving wheel.
For example, when the paver 2 is in the paving operation process, the requirement on the adhesion force between the driving wheel and the ground is high, and at this time, the second driving wheel set 13 can be driven to descend by the lifting mechanism 15, so that the second driving wheel set 13 and the first driving wheel set 11 work together, the driving force of the paver body 21 is increased, and the anti-skid performance is enhanced; when the road conditions with uneven road surfaces are met, the contact state of the second driving wheel set 13 and the road surfaces can be adjusted at any time through the lifting mechanism 15, so that the slipping phenomenon is prevented. When the paver 2 is in a non-operation process or a transition process, the requirements of the paver body 21 on the driving force are different, the second driving wheel set 13 can be driven to ascend through the lifting mechanism 15, and the paver body 21 can be driven to run only through the first driving wheel set 11, so that the running flexibility can be effectively improved, and the turning performance of the paver body 21 is improved.
Driving system 1 behind paver in this embodiment can take different drive methods according to paver 2's different construction needs and different road surface conditions, can effectively improve the adaptability to different road surfaces, can effectively prevent to take place the phenomenon of skidding, and paver 2's the flexibility of going and turning performance are higher. In addition, two rows of drive wheelsets adopt independent drive mechanism respectively, and when arbitrary drive wheelset broke down, another drive wheelset still can drive paver 2 and normally travel, can effectively reduce the influence to efficiency of construction and construction progress.
Example two
The embodiment provides a rear driving system 1 of a paver, which is further improved on the basis of the first embodiment.
As shown in fig. 2 to 4, the first driving wheel set 11 includes two first driving wheels 111, and the second driving wheel set 13 includes two second driving wheels 131.
Specifically, two first driving wheels 111 and two second driving wheels 131 are respectively disposed corresponding to two ends of the driving axle 10 so as to be in transmission connection with the output end of the driving axle 10; the second driving wheel 131 is located at the front side of the first driving wheel 111, and the lifting mechanism 15 can drive the second driving wheel 131 to move forward simultaneously in the lifting process, that is, the second driving wheel 131 can move forward and upward of the first driving wheel 111 under the driving of the lifting mechanism 15, so as to be matched with the connection mode of the second transmission mechanism 14, so that the second driving wheel 131 always keeps the same distance with the driving axle 10 in the lifting process, and meanwhile, the second driving wheel 131 can be prevented from interfering with the first driving wheel 111 in the lifting process.
EXAMPLE III
The embodiment provides a rear driving system 1 of a paver, which is further improved on the basis of the second embodiment.
As shown in fig. 2 to 5, the lifting mechanism 15 includes two sliders 152 and two lift cylinders 151. A sliding part 152 is arranged on the inner side of each second driving wheel 131, the sliding part 152 is provided with a sliding groove and a sliding block 1521, and the sliding block 1521 is in sliding fit with the sliding groove and can slide along the sliding groove; the sliding part 152 is connected with the frame 211 of the paver body 21 for fixing, the second driving wheel 131 is rotatably connected with the sliding block 1521 and can rotate relative to the sliding part 152, and meanwhile, the second driving wheel 131 can slide relative to the sliding chute along with the sliding block 1521.
A lifting oil cylinder 151 is arranged on the front side of each sliding piece 152, one end of each lifting oil cylinder 151 is connected with a sliding block 1521, and the other end of each lifting oil cylinder 151 extends towards the front side and is connected with a frame 211 of the paver body 21; when the lifting cylinder 151 is retracted, the driving slider 1521 slides relative to the sliding groove, and then the second driving wheel 131 is driven to move forward and upward, so that the second driving wheel 131 is lifted. On the contrary, when the lifting cylinder 151 extends, the slider 1521 drives the second driving wheel 131 to move reversely, so as to lower the second driving wheel 131.
Example four
The embodiment provides a rear driving system 1 of a paver, and is further improved on the basis of the third embodiment.
As shown in fig. 2 to 5, the first transmission mechanism 12 includes two first sprocket mechanisms 121, and the second transmission mechanism 14 includes two second sprocket mechanisms 141.
Specifically, two first sprocket mechanisms 121 are provided corresponding to the two first drive wheels 111, respectively. The first sprocket mechanism 121 specifically includes a first driving pulley 1211, a first driven pulley 1212, and a first transmission chain 1213, wherein the first transmission chain 1213 is engaged with the first driving pulley 1211 and the first driven pulley 1212; the first driving wheel 1211 is connected with the output end of the driving axle 10, and the first driven wheel 1212 is connected with the first driving wheel 111, so as to realize chain transmission between the driving axle 10 and the first driving wheel 111. When the driving axle 10 is operated, the driving axle 10 transmits power to the first driving wheel 111 through the first driving wheel 1211, the first transmission chain 1213 and the first driven wheel 1212, so that the first driving wheel 111 rotates, and the paver body 21 is driven to travel.
The two second sprocket mechanisms 141 are provided corresponding to the two second drive wheels 131, respectively. Similarly, the second sprocket mechanism 141 includes a second driving pulley 1411, a second driven pulley 1412, and a second transmission chain 1413, the second transmission chain 1413 is engaged with the second driving pulley 1411 and the second driven pulley 1412; the second driving wheel 1411 is connected with the output end of the driving axle 10, and the second driven wheel 1412 is connected with the second driving wheel 131, so as to realize chain transmission between the driving axle 10 and the second driving wheel 131. When the driving axle 10 is operated, power is transmitted to the second driving wheel 131 through the second driving wheel 1411, the second transmission chain 1413 and the second driven wheel 1412, so that the second driving wheel 131 rotates. When the second driving wheel 131 is in contact with the ground, the first driving wheel 111 and the second driving wheel 131 can be driven to rotate through the driving axle 10, and the paver body 21 is driven to run through a four-wheel drive mode.
Further, the second transmission mechanism 14 further includes a second tensioner 142, the second tensioner 142 is provided with a movable tensioning wheel, and is matched with the second transmission chain 1413, and the tensioning state of the second transmission chain 1413 is adjusted by adjusting the tensioning force acting on the second transmission chain 1413 through the movement of the tensioning wheel relative to the second transmission chain 1413, so that the second transmission chain 1413 can always maintain a proper tensioning state in the lifting process of the second driving wheel 131, and normal transmission is not affected.
EXAMPLE five
The embodiment provides a rear driving system 1 of a paver, and is further improved on the basis of the fourth embodiment.
As shown in fig. 2 to 5, the first transmission mechanism 12 is further provided with a first tensioner 122 engaged with the first transmission chain 1213, and the first driving wheel set 11 is further provided with a retracting mechanism 112 for adjusting the first driving wheel 111 to adjust the tension state of the first transmission chain 1213 using the retracting mechanism 112 and the first tensioner 122 to prevent the first transmission chain 1213 from being released. The first tensioner 122 is attached to the frame 211 at a position corresponding to the first driving chain 1213 and is engaged with the first driving chain 1213. The telescopic mechanism 112 specifically includes two telescopic cylinders 1121 respectively disposed corresponding to the inner sides of the first driving wheels 111; one end of the telescopic cylinder 1121 is connected to the first driving wheel 111, and the other end extends to the rear side and is connected to the frame 211 of the paver body 21. The first driving wheel 111 is driven to move in the front-back direction by the telescopic motion of the telescopic cylinder 1121, so as to change the pressure applied to the first transmission chain 1213 by the first tensioner 122, and adjust the tension state of the first transmission chain 1213, so as to ensure the normal transmission of the first chain wheel mechanism 121.
EXAMPLE six
The embodiment provides a rear driving system 1 of a paver, which is further improved on the basis of the second embodiment.
As shown in fig. 2, 5 and 6, the rear driving system 1 of the paver further includes a controller 16, the controller 16 is electrically connected to the lifting mechanism 15 and the telescopic mechanism 112, and can respectively control the lifting mechanism 15 and the telescopic mechanism 112, so as to drive the second driving wheel 131 to perform lifting motion by controlling the lifting cylinder 151 to operate, and drive the first driving wheel 111 to perform forward and backward motion by controlling the telescopic cylinder 1121 to operate, thereby realizing position adjustment of the first driving wheel 111 and the second driving wheel 131.
Further, paver rear drive system 1 still includes tire pressure detection subassembly 17, and tire pressure detection subassembly 17 specifically includes a plurality of tire pressure sensors 171, all is provided with tire pressure sensor 171 on every second drive wheel 131 to detect the tire pressure of every second drive wheel 131 respectively. The tire pressure sensor 171 is electrically connected to the controller 16 to transmit the detection result to the controller 16; when the second driving wheel set and the first driving wheel set work simultaneously, the controller 16 determines the current tire pressure condition according to the detection result of the tire pressure sensor 171, and correspondingly controls the lifting mechanism 15 to drive the second driving wheel 131 to move up and down, so that the tire pressure of the second driving wheel 131 meets the operation requirement to prevent slipping.
Specifically, as shown in fig. 8, the controller 16 compares the tire pressure of the second driving wheel 131 with the first tire pressure threshold value and the second tire pressure threshold value according to the detection result of the tire pressure sensor 171 to determine whether the tire pressure of the second driving wheel 131 satisfies the operation requirement. Wherein the first tire pressure threshold is less than the second tire pressure threshold. If the tire pressure of the second driving wheel 131 is less than the first tire pressure threshold value, it indicates that the current tire pressure is insufficient, and a slip phenomenon may occur in the second driving wheel 131 during the operation, at this time, the controller 16 controls the lift cylinder 151 to extend out to drive the second driving wheel 131 to descend, so as to increase the pressure between the second driving wheel 131 and the ground, and increase the tire pressure of the second driving wheel 131, so as to meet the operation requirement; if the tire pressure of the second driving wheel 131 is greater than the second tire pressure threshold value, it indicates that the tire pressure of the second driving wheel 131 is too high, which is not favorable for normal construction, and at this time, the lifting mechanism 15 is controlled to drive the second driving wheel 131 to ascend, so as to reduce the tire pressure of the second driving wheel 131; if the tire pressure of the second driving wheel 131 is greater than or equal to the first tire pressure threshold value and less than or equal to the second tire pressure threshold value indicates that the tire pressure reaches the tire pressure range required by the operation, the lifting mechanism 15 is controlled to maintain the current state without changing the height of the second driving wheel 131, so as to maintain the pressure of the second driving wheel 131, and the second driving wheel 131 operates in the current tire pressure state.
Still further, a tire pressure sensor 171 may be further disposed on the first driving wheel 111 to detect the tire pressure of the first driving wheel 111, so that an operator can know the tire pressure state of the first driving wheel 111 in time to adjust the tire pressure of the first driving wheel 111 in time when the tire pressure exceeds the normal tire pressure range.
One specific embodiment of the paver rear drive system 1 described above is provided below:
the embodiment provides a rear driving system 1 of a paver, which comprises a drive axle 10, a first driving wheel set 11, a second driving wheel set 13, a first transmission mechanism 12, a second transmission mechanism 14, a lifting mechanism 15, a controller 16 and a tire pressure detection assembly 17.
As shown in fig. 2 and 3, the drive axle 10 is disposed on the paver body 21 and is capable of outputting power outwards under the driving of a driving device of the paver body 21; the first driving wheel set 11 is disposed at the rear side of the driving axle 10, and the second driving wheel set 13 is disposed at the front side of the driving axle 10 to form two front and rear rows of driving wheel sets. As shown in fig. 4, the first driving wheel set 11 includes two first driving wheels 111, the second driving wheel set 13 includes two second driving wheel sets 13, and the two first driving wheels 111 and the two second driving wheels 131 are respectively disposed corresponding to two ends of the driving axle 10 so as to be in transmission connection with an output end of the driving axle 10.
As shown in fig. 2 to 5, the lifting mechanism 15 includes two sliders 152 and two lift cylinders 151. A sliding part 152 is arranged on the inner side of each second driving wheel 131, the sliding part 152 is provided with a sliding groove and a sliding block 1521, and the sliding block 1521 is in sliding fit with the sliding groove and can slide along the sliding groove; the sliding part 152 is connected with the frame 211 of the paver body 21 for fixing, the second driving wheel 131 is rotatably connected with the sliding block 1521 and can rotate relative to the sliding part 152, and meanwhile, the second driving wheel 131 can slide relative to the sliding chute along with the sliding block 1521.
A lifting oil cylinder 151 is arranged on the front side of each sliding piece 152, one end of each lifting oil cylinder 151 is connected with a sliding block 1521, and the other end of each lifting oil cylinder 151 extends towards the front side and is connected with a frame 211 of the paver body 21; when the lifting cylinder 151 is retracted, the driving slider 1521 slides relative to the sliding groove, and then the second driving wheel 131 is driven to move forward and upward, so that the second driving wheel 131 is lifted. On the contrary, when the lifting cylinder 151 extends, the slider 1521 drives the second driving wheel 131 to move reversely, so as to lower the second driving wheel 131.
As shown in fig. 2 to 5, the first transmission mechanism 12 includes two first sprocket mechanisms 121 and two first tensioners 122, and the second transmission mechanism 14 includes two second sprocket mechanisms 141, two second tensioners 142, and two telescopic cylinders 1121.
The first sprocket mechanism 121 specifically includes a first driving pulley 1211, a first driven pulley 1212, and a first transmission chain 1213, wherein the first transmission chain 1213 is engaged with the first driving pulley 1211 and the first driven pulley 1212; the first driving wheel 1211 is connected with the output end of the driving axle 10, and the first driven wheel 1212 is connected with the first driving wheel 111, so as to realize chain transmission between the driving axle 10 and the first driving wheel 111. Similarly, the second sprocket mechanism 141 includes a second driving pulley 1411, a second driven pulley 1412, and a second transmission chain 1413, the second transmission chain 1413 is engaged with the second driving pulley 1411 and the second driven pulley 1412; the second driving wheel 1411 is connected with the output end of the driving axle 10, and the second driven wheel 1412 is connected with the second driving wheel 131, so as to realize chain transmission between the driving axle 10 and the second driving wheel 131. When the transaxle 10 is operated, power is transmitted to the second drive wheel 131 through the second sprocket mechanism 141 and power is transmitted to the first drive wheel 111 through the first sprocket mechanism 121, so that the front and rear drive wheel sets are prevented from being influenced by each other.
As shown in fig. 5 and 6, the first tensioners 122 are attached to the frame 211 in positions corresponding to the first driving chains 1213, and each first driving chain 1213 cooperates with one of the first tensioners 122; each telescopic cylinder 1121 is arranged corresponding to the inner side of one first driving wheel 111; one end of the telescopic cylinder 1121 is connected to the first driving wheel 111, and the other end extends to the rear side and is connected to the frame 211 of the paver body 21. The first driving wheel 111 is driven to move in the front-back direction by the telescopic motion of the telescopic cylinder 1121, so as to change the pressure applied to the first transmission chain 1213 by the first tensioner 122, and adjust the tension state of the first transmission chain 1213, so as to ensure the normal transmission of the first chain wheel mechanism 121.
The second tensioner 142 is disposed in correspondence with the second drive chain 1413. The second tensioner 142 is provided with a movable tensioning wheel, and is matched with the second transmission chain 1413, and the tensioning force acting on the second transmission chain 1413 is adjusted by utilizing the movement of the tensioning wheel relative to the second transmission chain 1413, so as to adjust the tensioning state of the second transmission chain 1413.
As shown in fig. 6 and 7, the controller 16 is electrically connected to the lifting mechanism 15 and the telescopic mechanism 112, and can control the lifting cylinder 151 and the telescopic cylinder 1121 respectively, so as to control the lifting cylinder 151 to operate to drive the second driving wheel 131 to perform lifting motion, and control the telescopic cylinder 1121 to operate to drive the first driving wheel 111 to perform forward and backward motion, thereby adjusting the positions of the first driving wheel 111 and the second driving wheel 131.
When the paver 2 is in the paving operation process, the requirement on the adhesion force between the driving wheels and the ground is high, and at the moment, the second driving wheel 131 can be driven to descend by the lifting oil cylinder 151, so that the second driving wheel 131 and the first driving wheel 111 work together, the driving force of the paver body 21 is increased, and the anti-skid performance is enhanced; when the road conditions with uneven road surfaces are met, the contact state of the second driving wheels 131 and the road surfaces can be adjusted at any time through the lifting oil cylinder 151, so that the slipping phenomenon is prevented. When the paver 2 is in a non-operation process or a transition process, the requirements of the paver body 21 on the driving force are different, the second driving wheel set 13 can be driven to ascend through the lifting oil cylinder 151, and the paver body 21 can be driven to run only through the first driving wheel 111, so that the running flexibility can be effectively improved, and the turning performance of the paver body 21 can be improved.
As shown in fig. 5 to 7, the air pressure detecting assembly 17 specifically includes a plurality of air pressure sensors 171, and each of the second driving wheels 131 is provided with the air pressure sensor 171 to detect the air pressure of each of the second driving wheels 131, respectively. The tire pressure sensor 171 is electrically connected to the controller 16 to transmit the detection result to the controller 16; when the second driving wheel set 13 and the first driving wheel set 11 are simultaneously operated, the controller 16 determines the current tire pressure condition according to the detection result of the tire pressure sensor 171, and correspondingly controls the lifting mechanism 15 to drive the second driving wheel 131 to move up and down, so that the tire pressure of the second driving wheel 131 meets the operation requirement to prevent the occurrence of a slip.
Specifically, as shown in fig. 8, the controller 16 compares the tire pressure of the second driving wheel 131 with the first tire pressure threshold value and the second tire pressure threshold value according to the detection result of the tire pressure sensor 171 to determine whether the tire pressure of the second driving wheel 131 satisfies the operation requirement. Wherein the first tire pressure threshold is less than the second tire pressure threshold. If the tire pressure of the second driving wheel 131 is less than the first tire pressure threshold value, it indicates that the current tire pressure is insufficient, and a slip phenomenon may occur in the second driving wheel 131 during the operation, at this time, the controller 16 controls the lift cylinder 151 to extend out to drive the second driving wheel 131 to descend, so as to increase the pressure between the second driving wheel 131 and the ground, and increase the tire pressure of the second driving wheel 131, so as to meet the operation requirement; if the tire pressure of the second driving wheel 131 is greater than the second tire pressure threshold value, it indicates that the tire pressure of the second driving wheel 131 is too high, which is not favorable for normal construction, and at this time, the lifting mechanism 15 is controlled to drive the second driving wheel 131 to ascend, so as to reduce the tire pressure of the second driving wheel 131; if the tire pressure of the second driving wheel 131 is greater than or equal to the first tire pressure threshold value and less than or equal to the second tire pressure threshold value, which indicates that the tire pressure reaches the tire pressure range required by the operation, the lifting mechanism 15 is controlled to maintain the current state without changing the height of the second driving wheel 131, so as to maintain the pressure of the second driving wheel 131, and the second driving wheel 131 operates in the current tire pressure state.
Further, the tire pressure sensor 171 may also be disposed on the first driving wheel 111 to detect the tire pressure of the first driving wheel 111, so that an operator can timely know the tire pressure state of the first driving wheel 111, and timely adjust the tire pressure of the first driving wheel 111 when the tire pressure exceeds the normal tire pressure range.
Driving system 1 behind paver in this embodiment can carry out position adjustment to first driving wheel group 11 and second driving wheel group 13 respectively to take different drive methods according to paver 2's different construction needs and different road surface situations, can effectively improve the adaptability to different road surfaces, can effectively prevent to take place the phenomenon of skidding, paver 2's the flexibility of going and turning performance are higher. In addition, two rows of drive wheelsets adopt independent drive mechanism respectively, and when arbitrary drive wheelset broke down, another drive wheelset still can drive paver 2 and normally travel, can effectively reduce the influence to efficiency of construction and construction progress.
EXAMPLE seven
In the present embodiment, a paver 2 is provided, as shown in fig. 2, 3 and 6, the paver 2 includes a paver body 21 and the rear driving system 1 of the paver in any of the above embodiments.
The paver body 21 serves as a main body of the paver 2 and may be provided with working devices, such as a screed, a hopper, etc.; the working device travels with the paver body 21 to perform paving work. The rear driving system 1 of the paver is located at the rear part of a paver body 21 and specifically comprises a drive axle 10, a first driving wheel set 11, a second driving wheel set 13, a first transmission mechanism 12, a second transmission mechanism 14 and a lifting mechanism 15. The drive axle 10 is fixedly connected with the paver body 21, extends along the transverse direction of the paver body 21, and has output ends at two ends; the driving axle 10 below is located to first driving wheelset 11 and second driving wheelset 13, and first driving wheelset 11 is located the transaxle 10 rear side, and second driving wheelset 13 is located the front side of transaxle 10, and first driving wheelset 11 and second driving wheelset 13 are connected with the output transmission of transaxle 10 through first drive mechanism 12 and second drive mechanism 14 respectively to drive first driving wheelset 11 and second driving wheelset 13 through transaxle 10 and rotate, drive paver automobile body 21 and travel.
Lifting mechanism 15 is located the front side of second driving wheel group 13, and lifting mechanism 15's one end is connected with paver automobile body 21's frame 211, and the other end is connected with second driving wheel group 13, and accessible lifting mechanism 15 drives second driving wheel group 13 and carries out elevating movement to adapt to different road conditions, can adopt different drive methods according to the different construction requirements of paver 2 simultaneously.
Further, as shown in fig. 4, the first driving wheel set 11 includes two first driving wheels 111, and the second driving wheel set 13 includes two second driving wheels 131. When the second driving wheel 131 rises, the first driving wheel 111 drives the paver body 21 to run, and is suitable for the paver 2 in a non-operation state or a transition moving process; when the second driving wheel 131 descends and contacts with the ground, the second driving wheel 131 and the first driving wheel 111 drive the paver body 21 to run together, a four-wheel driving mode is formed, the driving force is stronger, and the paver body is suitable for a paving operation state.
The paver 2 in the embodiment can adopt different driving modes according to different construction requirements and road conditions, can effectively improve the adaptability to different roads and prevent skidding, and meanwhile, the paver 2 has higher driving flexibility and can prevent the influence on the turning performance; in addition, two rows of drive wheelsets adopt independent drive mechanism respectively, and when arbitrary drive wheelset broke down wherein, another drive wheelset still can drive paver 2 and normally travel, can effectively reduce the influence that causes construction efficiency and construction progress.
In addition, the paver 2 in this embodiment also has all the beneficial effects of the rear drive system 1 of the paver in any of the above embodiments, and details are not described here.
One specific embodiment of the present application is provided below:
the front wheel in the rear driving system of the paver is designed to be a lifting type, and the rear wheel is designed to be adjustable; the rear four wheels can land simultaneously, and the driving force of the tire is increased; the front wheel in the rear drive is connected to the machine body through a lifting oil cylinder, and the front wheel and the machine body swing up and down through a fixed sliding groove. The rear wheel can slide back and forth through the telescopic oil cylinder.
When the operation is slipped, the lifting oil cylinder acts to press the tire, so that the adhesive force of the tire to the ground is increased, and the driving force of the tire is changed. A tire pressure sensor is arranged in the tire, and the pressure of the lifting oil cylinder is adaptively adjusted by transmitting tire pressure monitoring parameters.
Specifically, a first driving wheel set, a lifting oil cylinder and a sliding groove are fixed on the machine body, and a second driving wheel set is connected with the lifting oil cylinder. Power is transmitted to the second driving wheel set and the first driving wheel set through the axle and the chain. The lifting oil cylinder drives the second driving wheel set to slide up and down in the sliding groove. At the same time, the chain is placed in a suitable tensioning state by adjusting the tensioning device.
The tire pressure sensor feeds back tire pressure parameters, and the pressure of the lifting oil cylinder can be adjusted in a self-adaptive mode through processing of a control program. The telescopic oil cylinder can adjust the front and back displacement of the rear wheel, and can realize the adjustment of the tensioning state of the front and back displacement of the rear wheel.
When the transition or the non-operation, the lifting oil cylinder makes the second driving wheel set in a lifting state, the driving force drives the vehicle to run through the first driving wheel set, and the running flexibility of the vehicle is greatly improved.
The technical solutions according to some embodiments of the present invention are described in detail above with reference to the accompanying drawings, and the first driving wheel set and the second driving wheel set can be respectively adjusted in position, so that different driving manners are adopted according to different construction needs and different road conditions of the paver, thereby effectively improving adaptability to different roads, effectively preventing the occurrence of a slip phenomenon, and improving driving flexibility and turning performance of the paver. In addition, two rows of drive wheelsets adopt independent drive mechanism respectively, and when arbitrary drive wheelset broke down, another drive wheelset still can drive the paver and normally travel, can effectively reduce the influence to efficiency of construction and construction progress.
In embodiments according to the present invention, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. Specific meanings of the above terms in the embodiments according to the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the description of the embodiments according to the present invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of describing the embodiments according to the present invention and simplifying the description, but do not indicate or imply that the referred devices or units must have a specific direction, be configured and operated in a specific orientation, and thus, should not be construed as limiting the technical aspects of the present application.
In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example in accordance with the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above is only a preferred embodiment according to the present invention, and is not intended to limit the technical solution of the present application, and it is obvious to those skilled in the art that various modifications and changes can be made to the technical solution of the present application. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the technical scheme of the application shall be included in the protection scope of the application.
Claims (10)
1. A paver rear drive system (1), characterized by comprising:
a drive axle (10);
the first driving wheel set (11) is arranged on the rear side of the drive axle (10) and is in transmission connection with the drive axle (10) through a first transmission mechanism (12);
the second driving wheel set (13) is arranged on the front side of the drive axle (10) and is in transmission connection with the drive axle (10) through a second transmission mechanism (14);
and one end of the lifting mechanism (15) is connected with the second driving wheel set (13), the other end of the lifting mechanism is used for connecting a rack (211) of the paver (2), and the lifting mechanism (15) can drive the second driving wheel set (13) to perform lifting motion.
2. The paving machine rear drive system (1) according to claim 1,
the first driving wheel set (11) comprises two first driving wheels (111) which are respectively arranged corresponding to two ends of the driving axle (10);
the second driving wheel set (13) comprises two second driving wheels (131) which are respectively arranged at the front sides of the two first driving wheels (111);
wherein the second drive wheel (131) is movable forward during ascent and rearward during descent under drive of the lifting mechanism (15).
3. The paver rear drive system (1) as defined in claim 2, characterized in that the lifting mechanism (15) comprises:
the two sliding parts (152) are respectively arranged on the inner sides of the two second driving wheels (131) and can be connected with the rack (211), each sliding part (152) is provided with a sliding groove and a sliding block (1521) which are in sliding fit, and each sliding block (1521) is rotatably connected with the corresponding second driving wheel (131);
the two lifting oil cylinders (151) are respectively arranged corresponding to the two sliding pieces (152), and one end of each lifting oil cylinder (151) is connected with the sliding block (1521) located on the same side so as to drive the sliding block (1521) and the second driving wheel (131) to move.
4. The paving machine rear drive system (1) according to claim 3,
the first transmission mechanism (12) comprises two first chain wheel mechanisms (121), each first chain wheel mechanism (121) comprises a first driving wheel (1211), a first driven wheel (1212) and a first transmission chain (1213), the first driving wheel (1211) is connected to the output end of the drive axle (10), and the first driven wheel (1212) is connected to the first driving wheel (111);
the second transmission mechanism (14) comprises two second chain wheel mechanisms (141), each second chain wheel mechanism (141) comprises a second driving wheel (1411), a second driven wheel (1412) and a second transmission chain (1413), the second driving wheel (1411) is connected to the output end of the drive axle (10), and the second driven wheel (1412) is connected to the second driving wheel (131).
5. The paving machine rear drive system (1) according to claim 4,
the first transmission mechanism (12) further comprises a first tensioner (122), the first tensioner (122) cooperating with the first transmission chain (1213);
the first driving wheel set (11) further comprises a telescopic mechanism (112), the telescopic mechanism (112) comprises two telescopic oil cylinders (1121) which are respectively arranged at the inner sides of the two first driving wheels (111), one end of each telescopic oil cylinder (1121) is connected with the first driving wheel (111) which is positioned at the same side, and the other end of each telescopic oil cylinder is connected with the rack (211);
the telescopic oil cylinder (1121) is used for driving the first driving wheel (111) to move back and forth, and the tensioning state of the first transmission chain (1213) is adjusted through the first tensioner (122).
6. The paving machine rear drive system (1) according to claim 4,
the second transmission mechanism (14) further comprises a second tensioner (142), the second tensioner (142) is provided with a movable tensioning wheel, and the tensioning wheel is matched with the second transmission chain (1413) to adjust the tensioning state of the second transmission chain (1413).
7. The paving machine rear drive system (1) according to claim 5, further comprising:
and the controller (16) is electrically connected with the lifting mechanism (15) and the telescopic mechanism (112) and is used for controlling the working of the lifting mechanism (15) and the telescopic mechanism (112).
8. The paving machine rear drive system (1) according to claim 7, further comprising:
the tire pressure detection assembly (17) comprises a plurality of tire pressure sensors (171) which are respectively arranged on the two second driving wheels (131) and are used for detecting the tire pressure of the second driving wheels (131);
the controller (16) is electrically connected with the tire pressure sensor (171), and when the second driving wheel set (13) and the first driving wheel set (11) work simultaneously, the controller (16) controls the lifting mechanism (15) to work according to the tire pressure of the second driving wheel (131) so as to drive the second driving wheel (131) to ascend or descend.
9. The paving machine rear drive system (1) according to claim 8,
the controller (16) determines the tire pressure of the second driving wheel (131) according to the detection result of the tire pressure sensor (171), controls the lifting mechanism (15) to drive the second driving wheel (131) to descend when the tire pressure is smaller than a first tire pressure threshold value, controls the lifting mechanism (15) to drive the second driving wheel (131) to ascend when the tire pressure is larger than a second tire pressure threshold value, and controls the lifting mechanism (15) to keep the current state when the tire pressure is larger than or equal to the first tire pressure threshold value and smaller than or equal to the second tire pressure threshold value.
10. A paver (2), characterized in that it comprises:
the paver vehicle body (21), the paver vehicle body (21) is provided with a frame (211);
the rear drive system (1) of the paver of any one of claims 1 to 9 being arranged at the rear of the paver body (21), the drive axle (10) of the rear drive system (1) of the paver being connected to the paver body (21), and the lifting mechanism (15) of the rear drive system (1) of the paver being connected to the front of the second drive wheel set (13) extending from the end of the lifting mechanism (15) remote from the second drive wheel set (13) and being connected to the machine frame (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110388166.5A CN112921764A (en) | 2021-04-12 | 2021-04-12 | Rear driving system of paver and paver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110388166.5A CN112921764A (en) | 2021-04-12 | 2021-04-12 | Rear driving system of paver and paver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112921764A true CN112921764A (en) | 2021-06-08 |
Family
ID=76174130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110388166.5A Pending CN112921764A (en) | 2021-04-12 | 2021-04-12 | Rear driving system of paver and paver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112921764A (en) |
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2021
- 2021-04-12 CN CN202110388166.5A patent/CN112921764A/en active Pending
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