CN218489538U - Open-air dump truck - Google Patents
Open-air dump truck Download PDFInfo
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- CN218489538U CN218489538U CN202223095836.3U CN202223095836U CN218489538U CN 218489538 U CN218489538 U CN 218489538U CN 202223095836 U CN202223095836 U CN 202223095836U CN 218489538 U CN218489538 U CN 218489538U
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Abstract
The utility model provides an outdoor dump truck, wherein two sides of a truck body chassis of the dump truck are connected with crawler wheels, an integral transmission mechanism is connected on the truck body chassis in a sliding way, and the end part of the integral transmission mechanism is connected with a trough; the rear support frame is fixedly connected to the rear end of a movable frame of the integral transmission mechanism, a main arm rod is connected to a pin shaft on the rear support frame, one end of a front support frame is connected to a pin shaft on the main arm rod, a bottom end bearing of the support frame is connected to the movable frame and is fixedly connected with a large gear, the large gear is meshed with a cylindrical gear, the cylindrical gear is fixed to a driving motor, and the driving motor is fixed to the movable frame. Still the one end of fixed connection servo hydraulic cylinder on the main armed lever, the one end of equal round pin hub connection quarter butt of both sides of servo hydraulic cylinder's hydraulic stem tip and stock, the other end round pin hub connection of quarter butt is at the tip of main armed lever, the one end of the other end round pin hub connection silo link of stock, the other end round pin hub connection of silo link is at the tip of quarter butt. The problem of the dumper has the bearing capacity relatively poor is solved.
Description
Technical Field
The utility model relates to a dumper technical field specifically is a promote stationarity, improves on-vehicle ability, promotes the open-air dumper of unloading speed.
Background
The dump truck is widely applied to daily life of people, and due to the existence of the dump truck, the goods can be loaded and unloaded more conveniently, and time and labor are saved. However, with the continuous development of science and technology, the daily loading and unloading places of people are changed, the transportation vehicles are changed from small-sized vehicles to large trucks from indoor to outdoor slowly, the goods are changed from small-sized and light goods to large-sized goods, and the small-sized unloading trucks in the past can not meet the requirements of people gradually, so that the design of the unloading truck device with excellent mechanism and good performance is very important.
At present, the common unloading vehicles comprise a chain-driven lifting unloading vehicle, and some unloading vehicles are driven by hydraulic situations and are semi-inclined, and the unloading vehicles are mainly applied to the daily loading and unloading of lighter articles, and still appear to have insufficient capacity for loading and unloading large-mass and large-volume goods. Simultaneously, most unloading trucks are the train structure now, and this kind of structure is in the work that flat ground can be fine, but outdoors, meets rugged topography, will further influence its work efficiency. At present, most of unloading trucks are difficult to load and unload cargos with a certain height, and the unloading trucks of the type can not meet the loading and unloading requirements of large trucks and are not beneficial to high-efficiency loading and unloading of cargos.
Disclosure of Invention
The utility model provides an open-air dump truck, its aim at solve current dump truck and have the bearing capacity relatively poor, not strong to the adaptability of ground environment, cargo handling volume is low, and silo motion height is not enough, is unfavorable for improving daily work efficiency's problem.
In order to achieve the above object, the utility model provides a following technical scheme:
a crawler wheel is connected to two sides of a body chassis of an open-air dump truck, an integral transmission mechanism is connected to the body chassis in a sliding mode, and the end portion of the integral transmission mechanism is connected with a material groove;
the integral transmission mechanism comprises a servo hydraulic cylinder, a connecting plate, a main arm rod, a first cylindrical gear, a rear support frame, a driving motor, a large gear, a front support frame and a trough connecting frame, the rear support frame is fixedly connected to the rear end of the movable frame, a main arm rod is connected to a pin shaft on the rear support frame, an upper pin shaft of the main arm rod is connected to one end of the front support frame, a bottom end bearing of the support frame is connected to the movable frame and is fixedly connected with the large gear, the large gear is meshed with the first cylindrical gear, the first cylindrical gear is fixed on the driving motor, and the driving motor is fixed on the movable frame;
still the one end of fixed connection servo hydraulic cylinder on the main armed lever, the one end of equal round pin hub connection quarter butt of both sides of servo hydraulic cylinder's hydraulic stem tip and stock, the other end round pin hub connection of quarter butt is at the tip of main armed lever, the one end of the other end round pin hub connection silo link of stock, the other end round pin hub connection of silo link is at the tip of stock.
Further, the main arm rod 12 is an integral structure of a long straight rod and a short straight rod, and the angle between the long straight rod and the short straight rod is 130 °.
Furthermore, the front support frame is in a structure that two connecting rods are fixedly connected, and the angle of the two rods in the front support frame is 105 degrees.
Furthermore, a plurality of sliding support plates and straight gears are fixedly arranged on the vehicle body chassis, a movable frame is connected in a sliding groove in the sliding support plates, an integral transmission mechanism and a platform driving motor are fixedly arranged on the movable frame, a second cylindrical gear is fixedly connected with the shaft end of the platform driving motor, and the second cylindrical gear is meshed with the straight gears.
Furthermore, the front end of the chassis of the vehicle body is fixedly connected with a laser radar.
Furthermore, a belt wheel support is fixedly connected to the lower portion of the chassis, the belt wheel support is fixedly connected with a belt wheel connecting frame, a driving wheel and a driven wheel are fixedly connected to the belt wheel connecting frame, crawler wheels are fixed to the driving wheel and the driven wheel, the driving wheel is connected with an output shaft of a crawler driving motor, and the crawler driving motor is fixed to the chassis.
By adopting the technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses a gear wheel carries out the transmission, by gear wheel and roller gear as drive disk assembly, can promote drive mechanism's bearing capacity, realizes the transportation of high quality, bulky goods.
2. The utility model discloses connect with the rod system mode, can be so that the silo has bigger displacement volume on vertical face, also can easily load and unload to the goods of take the altitude, can promote the loading and unloading speed.
3. The utility model discloses but the rod system platform is back-and-forth movement platform, can carry out the bulk movement to the loading arm, further promotes the handling efficiency of goods.
4. The utility model has the characteristics of bearing capacity is big, and adaptability is strong for more have stability during cargo handling.
Drawings
FIG. 1 is a schematic view of the overall assembly of the present invention;
FIG. 2 is a schematic view of the overall transmission mechanism;
fig. 3 is a schematic structural view of a spur gear;
FIG. 4 is a schematic diagram of a portion of a movable platform;
FIG. 5 is a schematic view of a bull gear rotating mechanism;
FIG. 6 is a schematic view of a trough structure;
FIG. 7 is a schematic view of a vehicle chassis;
FIG. 8 is a bottom view of the vehicle body;
reference numerals: 1. the whole transmission mechanism comprises a 10, a servo electric lever, 11, a connecting plate, 12, a main arm rod, 121, a long straight rod, 122, a short straight rod, 13, a first cylindrical gear, 14, a rear support frame, 15, a driving motor, 16, a movable frame, 161, a spur gear motor connecting plate, 162, a movable frame sliding groove, 17, a large gear, 171, a connecting plate, 172, a support shaft, 173 support frames, 18, a front support frame, 19, a trough connecting frame, 191, a long rod, 192, a short rod, 2, a crawler wheel, 20, a crawler driving motor, 21, a driving wheel, 22, a driven wheel, 23, a pulley connecting frame, 24, a pulley support frame, 25, a crawler belt, 3, a vehicle body chassis, 31, a sliding support plate, 4, a laser radar, 5, a spur gear structure, 51, a platform driving motor, 52, a second cylindrical gear, 53, a spur gear, 6, a trough, 61, a vertical dismounting plate, 62, a horizontal dismounting plate and 63 lightening holes.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only.
As shown in fig. 1, the overall structure of the field dump truck is shown, the dump truck mainly comprises an overall transmission mechanism 1, crawler wheels 2, a truck chassis 3 and a trough 6, the truck chassis 3 penetrates through the connection of the whole truck parts, the crawler wheels 2 are connected to two sides of the truck chassis 3, the overall transmission mechanism 1 is connected to the truck chassis 3 in a sliding manner, and the end part of the overall transmission mechanism 1 is connected with the trough 6;
as shown in fig. 1-2, the chassis 3 is a main frame of the entire vehicle, and serves to connect vehicle body components and fix the components. Automobile body chassis 3 is frame construction, and 3 front ends of automobile body chassis (right side in figure 1) are fixed with laser radar 4 through threaded connection, are being surrounded by the baffle around laser radar 4, and the 4 models of laser radar are RS-Lidar, and the baffle is the lug weld on automobile body chassis 3, and the baffle is mainly to playing the guard action to laser radar 4, avoids dropping and damaging the radar because of the goods when unloading. A plurality of sliding support plates 31 and spur gears 53 are fixedly arranged on the vehicle body chassis 3 through bolts, in this embodiment, 4 sliding support plates 31 are arranged, a movable rack sliding groove 162 fixed below the movable rack 16 is slidably connected in a sliding groove on the sliding support plate 31, an integral transmission mechanism 1 and a platform driving motor 51 are fixedly arranged on the movable rack 16, as can be seen from fig. 3, a second spur gear 52 is fixedly connected to a shaft end of the platform driving motor 51, the second spur gear 52 is meshed with the spur gear 53, the platform driving motor 51, the second spur gear 52 and the spur gear 53 form a spur gear structure 5, as can be seen from fig. 3, the connection mode of the platform driving motor 51 and the movable rack 16 cannot be seen because the movable rack 16 is hidden, but as can be seen from fig. 4, the platform driving motor 51 is fixedly connected to the spur gear motor connecting plate 161 of the movable rack 16 through the spur gear motor connecting plate 161 in a threaded connection manner. The second cylindrical gear 52 is driven to rotate by the rotation of the platform driving motor 51, and the movable frame sliding grooves 162 are driven to move on the sliding support plate 31 through gear connection, the movable frame sliding grooves 162 are formed in the front and back and the left and right sides of the movable frame 16, the sliding support plates 31 are formed in the front and back and the left and right sides of the vehicle body chassis 3, the number of the movable frame sliding grooves 162 is four, and the movable frame sliding grooves 162 are matched with the sliding support plates 31. The movable rack 16 is further advanced and retreated by the movement of the movable rack sliding groove 162.
As shown in fig. 2, the integral transmission mechanism 1 includes a servo hydraulic electric cylinder 10, a connecting plate 11, a main arm rod 12, a first cylindrical gear 13, a rear support frame 14, a driving motor 15, a gearwheel 17, a front support frame 18 and a trough connecting frame 19, the rear support frame 14 is fixedly connected to the rear end (left side shown in fig. 2) of a movable frame 16 through threads, the rear support frame 14 is a fixed frame, the rear support frame 14 is connected to the main arm rod 12 through a pin shaft, the main arm rod 12 is an integrally arranged structure of a long straight rod 121 and a short straight rod 122, an angle between the long straight rod 121 and the short straight rod 122 is 130 °, and according to a rod system motion principle, positioning the two rods at an angle of 130 ° can enable the trough 6 to be in complete contact with a horizontal ground when the integral device is not in operation, reduce stress of the integral rod, and prolong the service life of the integral mechanism. The upper pin shaft of the long straight rod 121 is connected with the front support frame 18, the front support frame 18 is a structure that two connecting rods are fixedly connected through threads, and the angle of the two rods in the front support frame 18 is 105 degrees. According to the mechanical design principle and the relevant knowledge of mechanism mechanics, the setting mode of the angles of the two rods in the support frame 18 can improve the bearing of the whole support frame on longitudinal force, avoid the problem of stress concentration caused by setting of small angles, and improve the bearing capacity and stability of the whole mechanism. The top end of the connecting rod is connected to the long straight rod 121 through a pin shaft, the bottom end of the connecting rod is connected with the supporting shaft 172 through a bearing, and is fixed on the movable frame 16 through a supporting frame 173 and a connecting plate 171 and is fixedly connected with the large gear 17; specifically, the main arm bar 12 is connected to the rear support frame 14 and the front support frame 18 by a large screw connection. The upper end of the front support frame 18 is fixedly connected with the main arm rod 12 through a connecting plate by screw threads, and the lower end is connected with the large gear 17 through screw threads. As shown in fig. 5, the bull gear 17 is connected and fixed with the front support frame 18 by a row of threads, and the middle of the bull gear 17 and the front support frame is penetrated by a support shaft 172, which is embedded with a bearing to support the bull gear 17. The two ends of the supporting shaft 172 directly pass through the holes of the supporting frame 173, and the two are connected in a shaft hole matching manner. Two sides of the supporting frame 173 are provided with threaded holes, and are connected with the connecting plate 171 through the threaded holes, one end of the connecting plate 171 is fixedly connected with the movable frame 16 through threads, and the other end is connected with the supporting frame 173. The supporting frame 173 mainly supports and fixes the supporting shaft 172 to ensure that the entire gear mechanism cannot move axially but only rotates axially, so that the entire gearwheel is fixed to the movable frame 16 through the connecting plate 171. The connecting plate 171, the supporting shaft 172 and the supporting frame 173 fix the bull gear 17, so that the bull gear 17 can not move axially and only rotate axially. The large gear 17 is engaged with the first cylindrical gear 13, the first cylindrical gear 13 is fixed on the driving motor 15, and the driving motor 15 is fixed on the movable frame 16.
The one end of servo hydraulic cylinder 10 is fixedly connected to long straight rod 121 through connecting plate 11, the one end of quarter butt 192 and stock 191 is all pinned at the both sides of the hydraulic rod tip of servo hydraulic cylinder 10, the other end of quarter butt 192 is pinned at the tip of long straight rod 121, the one end of silo link 19 is pinned at the other end of stock 191, the other end of silo link 19 is through the pin hub connection at the tip of quarter butt 191. It can be seen from combining fig. 2 that silo link 19 carries out angle slope control through the transmission between the member, and its inclination is controlled by servo hydraulic cylinder 10's flexible volume, and the feed rate of the inside servo motor control pneumatic cylinder of accessible servo hydraulic cylinder 10 controls silo link 19's angle, and then realizes the control to 6 angles of inclination of silo, realizes dealing with the transportation at the reasonable angle of different goods.
One end of the servo hydraulic cylinder 10 is fixedly connected with the trough connecting frame 19 through a bolt, the other end of the servo hydraulic cylinder is fixedly connected with the main arm rod 12 through the connecting plate 11 through a bolt, and the axial force of the servo hydraulic cylinder 10 is overcome by the connecting mode, so that the hydraulic cylinder can only perform linear feeding and cannot rotate axially. When driving motor 15 rotated, the rotation through first cylindrical gear 13 drove gear wheel 17 and carries out axial rotation, drives the motion of preceding support frame 18, makes main armed lever 12 move, and silo 6 also can follow and move, realizes the regulation to silo 6 position.
As shown in fig. 1 and 2, the cargo transportation trough 6 is connected with the system transmission mechanism through a trough connecting frame 19, the trough connecting frame and the system transmission mechanism are connected in a threaded screw hole mode, and the trough 6 is fixed in the connecting frame through bolts.
As shown in fig. 1 and 7-8, the lower part of the chassis 3 is connected with a belt wheel support frame 24 through bolts, and the belt wheel support frame 24 is connected with a belt wheel connecting frame 23 through a threaded screw hole and welding, so that the whole crawler wheel is convenient for fixing the chassis of the vehicle body together. The belt wheel connecting frame 23 is fixedly connected with a driving wheel 21 and a driven wheel 22 through a bolt connection and a welding mode, crawler wheels 2 are fixed on the driving wheel 21 and the driven wheel 22, the crawler wheels 2 move in a chain wheel transmission mode, the driving wheel 21 is connected with an output shaft of a crawler driving motor 20, and the crawler driving motor 20 is fixed on the chassis 3. The driving of the track driving motor 20 can drive the driving wheel 21 to rotate, thereby driving the whole track wheel 2 to move.
The same crawler wheel devices are arranged on two sides of the dumper, the device is different from a traditional crawler wheel driving mode that two sides of the dumper are driven through only one crawler driving motor 20 and a coupler, the device directly controls the motors on the two sides to drive the dumper to achieve feeding movement of the dumper, the design mode further improves the movement capacity of the crawler wheels, and the dumper can have larger propelling force when moving forwards and backwards. When the dump truck needs to turn, the differential rotating speed can be carried out by controlling the motors on the two sides, and finally the steering of the whole device is realized.
As shown in fig. 6, this device silo 6 is different from the traditional silo in the past, this kind of silo contains removable baffle, removable baffle includes vertical dismantlement board 61 and horizontal dismantlement board 62, because of there is the groove mark of processing in advance the silo inner wall, vertical dismantlement board 61 can directly nest in the groove mark department of silo 6 inner walls, and also there is the groove mark of processing in vertical dismantlement board 162 both sides, horizontal dismantlement board 62 then directly carries out nested connection with vertical dismantlement board 61, connect the groove mark through processing in advance, alright with the vertical groove mark department of inserting the processing with corresponding dismantlement board, realize the fixed connection to each board. The whole trough 6 can be divided into different areas by the vertical detaching plate 61 and the horizontal detaching plate 62, and a plurality of lightening holes 63 are arranged on the detaching plate as can be seen from fig. 6, and the lightening holes 63 are added on the structure, so that the whole weight of the trough can be reduced while the material is saved. When the volume of the goods of unloading is less, just can divide whole hopper inside through the dismantlement board, can realize the accurate loading and unloading to the widget, mix to one when can prevent loading and unloading between the different goods simultaneously. If the goods to be loaded and unloaded are too big, the baffle plates can be completely removed for loading and unloading the big goods.
Laser radar 4, servo electronic jar 10, driving motor 15, track driving motor 20, platform driving motor 51 are directly connected with control system among this novel device, through carrying out signal transmission and receiving with control system, realize the control to whole device.
The driving motor 15 and the track driving motor 20 are general-purpose gear reducing motors of Severe type KF37-Y4-4P-196-M1-180 degrees, and the platform driving motor 5 is a general-purpose gear reducing motor of Severe type KF77-Y2-4P-100-M1-180 degrees. Both motors were purchased from shanghai seffer reducer, ltd. The device is an integrated structure of a motor and a reduction gearbox.
The servo electric cylinder 10 is of an existing structure, can be purchased from Leimettek Transmission Equipment Limited company, is of an IMB series-05-10-100-FF-BA, has a longer service life than a ball screw structure, can bear larger force, realizes closed-loop servo control by adding a grating ruler in the motor, has high rigidity and strong impact resistance, and can reach the control precision of 0.01 mm. The device is of an integrated structure of a motor and a hydraulic cylinder.
The laser radar 4 is of an existing structure, is purchased from Shanghang Tanshan Juti technology Limited in Shenzhen, is a newly-released 16-line laser radar, and is a world leading small laser radar. A mixed solid-state laser radar mode is adopted, 16 laser transceiving components are integrated, the measuring distance is up to 150 meters, the measuring precision is within +/-2 cm, the number of the outgoing points is up to 300,000 points/second, the horizontal angle measurement is 360 degrees, and the vertical angle measurement is-15 degrees to 15 degrees. The laser radar 4 can continuously scan the external environment by emitting high-frequency laser beams while rapidly rotating through the 16 laser emitting assemblies, three-dimensional space point cloud data and object reflectivity are provided through a ranging algorithm, a machine can see the surrounding world, and powerful guarantees are provided for wagon positioning, navigation, obstacle avoidance and the like.
The working principle is as follows:
when the unloader moves, the laser radar 4 detects the vehicle travel distance, and if the distance between the vehicle and the target object is equal to the set target distance value, a signal is sent to the control system to stop the truck from traveling. The laser radar 4 is mainly used for protecting the vehicle, and unnecessary safety accidents caused by too short distance between the vehicles are avoided.
If the distance does not exceed the set distance, a signal is sent to the track driving motor 20 according to the vehicle distance, so that the driving wheel 21 is driven to rotate, the feeding motion of the crawler wheel is realized, and the crawler wheel 2 is driven to move towards the target goods. When the goods reach the position near the target, the straight gear 53 used by the equipment is 650mm in length, can conservatively realize 500mm distance advancing, further approaches the distance between the unloading trough and the goods, and improves the loading and unloading efficiency of the goods according to the distance between the goods and the unloading trough 6 of the unloading truck and the distance between the unloading trough and the goods.
The height of the trough 6 needs to be adjusted in the face of goods of different heights. When the goods to be transported are high, the driving motor 15 can drive the gear to rotate, the large gear 17 rotates to adjust the telescopic amount of the front support frame 18, and the height of the whole structure is improved. The trough 6 can also be brought into full contact with the ground when the load to be handled is low. Due to the design of the transmission ratio of the rod system, the transmission mode can realize that the trough has a displacement of 0-3m on a vertical plane. When the silo shipment goods, also there is the device of an intelligent adjustment silo inclination, the angle slope of this device mainly realizes through control servo electronic jar 10, through the flexible volume of control servo electronic jar 10, realizes the corresponding change of angle. When the cargo loading and unloading are started, the angle between the trough 6 and the horizontal plane is horizontal, namely 0 degree. When the goods are loaded and unloaded half by half, the included angle between the trough 6 and the horizontal plane is adjusted upwards and becomes 20 degrees; after the goods are loaded, the inclination angle can be adjusted between 30 degrees and 45 degrees according to the full degree of the goods, and the actual inclination angle is controlled by field workers; after the goods are loaded, the equipment can be selected to automatically unload and manually load and unload according to the hardness degree of the loaded goods.
While the present invention has been given some embodiments, it will be understood by those skilled in the art that modifications may be made to the embodiments herein without departing from the spirit of the invention. The above embodiments are merely exemplary, and the scope of the present invention should not be limited by the embodiments described herein.
Claims (6)
1. A field dump truck is characterized in that: crawler wheels (2) are connected to two sides of a body chassis (3) of the dump truck, an integral transmission mechanism (1) is connected to the body chassis (3) in a sliding manner, and the end part of the integral transmission mechanism (1) is connected with a trough (6);
the integral transmission mechanism (1) comprises a servo hydraulic cylinder (10), a connecting plate (11), a main arm rod (12), a first cylindrical gear (13), a rear support frame (14), a driving motor (15), a gearwheel (17), a front support frame (18) and a trough connecting frame (19), the rear support frame (14) is fixedly connected to the rear end of the movable frame (16), the rear support frame (14) is connected with the main arm rod (12) through a pin shaft, the main arm rod (12) is connected with one end of the front support frame (18) through a pin shaft, the bottom end of the support frame (18) is connected to the movable frame (16) through a bearing and is fixedly connected with the gearwheel (17), the gearwheel (17) is meshed with the first cylindrical gear (13), the first cylindrical gear (13) is fixed on the driving motor (15), and the driving motor (15) is fixed on the movable frame (16);
the one end of still fixed connection servo hydraulic cylinder (10) on main armed lever (12), the one end of equal round pin hub connection quarter butt (192) of both sides of the hydraulic stem tip of servo hydraulic cylinder (10) and stock (191), the tip at main armed lever (12) of the other end round pin hub connection of quarter butt (192), the one end of the other end round pin hub connection silo link (19) of stock (191), the tip at stock (191) of the other end round pin hub connection of silo link (19).
2. A field dump truck as defined in claim 1, wherein: the main arm rod (12) is of a structure of a long straight rod (121) and a short straight rod (122) which are integrally arranged, and the angle between the long straight rod (121) and the short straight rod (122) is 130 degrees.
3. A field dump truck as defined in claim 1, wherein: the front support frame (18) is a structure fixedly connected with two connecting rods, and the angle of the two rods in the front support frame (18) is 105 degrees.
4. A field dump truck as defined in claim 1, wherein:
a plurality of sliding support plates (31) and straight gears (53) are fixedly arranged on a vehicle body chassis (3), a movable frame (16) is connected in a sliding groove in the sliding support plates (31) in a sliding mode, an integral transmission mechanism (1) and a platform driving motor (51) are fixedly arranged on the movable frame (16), the shaft end of the platform driving motor (51) is fixedly connected with a second cylindrical gear (52), and the second cylindrical gear (52) is meshed with the straight gears (53).
5. A field dump truck as defined in claim 1, wherein: the front end of the vehicle body chassis (3) is fixedly connected with a laser radar (4).
6. A field dump truck as defined in claim 1, wherein: the crawler belt type wheel driving device is characterized in that a belt wheel supporting frame (24) is fixedly connected to the lower portion of the chassis (3), the belt wheel supporting frame (24) is fixedly connected with a belt wheel connecting frame (23), a driving wheel (21) and a driven wheel (22) are fixedly connected to the belt wheel connecting frame (23), crawler wheels (2) are fixed to the driving wheel (21) and the driven wheel (22), the driving wheel (21) is connected with an output shaft of a crawler belt driving motor (20), and the crawler belt driving motor (20) is fixed to the chassis (3).
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CN202223095836.3U CN218489538U (en) | 2022-11-22 | 2022-11-22 | Open-air dump truck |
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CN202223095836.3U CN218489538U (en) | 2022-11-22 | 2022-11-22 | Open-air dump truck |
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