CN210337697U - Rear baffle plate active opening type cargo compartment and mining dump truck adopting same - Google Patents
Rear baffle plate active opening type cargo compartment and mining dump truck adopting same Download PDFInfo
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- CN210337697U CN210337697U CN201920873472.6U CN201920873472U CN210337697U CN 210337697 U CN210337697 U CN 210337697U CN 201920873472 U CN201920873472 U CN 201920873472U CN 210337697 U CN210337697 U CN 210337697U
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Abstract
The utility model relates to a backplate initiative open-type goods railway carriage or compartment and adopt mining dump truck of this goods railway carriage or compartment. The cargo compartment with the actively opened rear baffle comprises a cargo compartment body, wherein a lower turnover rear baffle is arranged at the rear end of the cargo compartment body and is connected with the cargo compartment body through a connecting rod mechanism; the lower turnover rear baffle is driven by the connecting rod mechanism to be combined with the rear side of the cargo compartment body or separated from the rear side of the cargo compartment body and turned downwards below the cargo compartment body. The cargo compartment with the actively opened rear baffle can overcome the defects of the conventional tilted tail compartment and the baffle compartment in the using process, and improves the use flexibility and safety.
Description
Technical Field
The utility model relates to a backplate initiative open-type goods railway carriage or compartment and adopt mining dump truck of this goods railway carriage or compartment.
Background
At present, the cargo compartments of mining dump trucks in the market are mainly divided into two types: one is a cargo car without a rear baffle at the raised tail (hereinafter referred to as raised tail car), as shown in fig. 1; the other type is a cargo car with a rear baffle without tilting the tail (hereinafter referred to as a baffle car), as shown in fig. 2.
The tilting tail box is not provided with the rear baffle, and the main reason is that the tilting tail box is used for transporting stones and metal ores (hereinafter referred to as stones) with larger volume and larger density; meanwhile, in order to ensure that the goods compartment can catch materials in the transportation process, the rear end of the tilted tail compartment is provided with an upward tilted tail with the length of 1300mm and the angle of 12 degrees, so that the goods are ensured not to fall down in the transportation process. In the use process, there are three outstanding problems in the tail-raising carriage: one is that when the cargo compartment starts to unload, the stone does not fall and is completely clamped at the position where the tail of the cargo compartment starts to warp (arrow position in the cross-sectional view of fig. 3) when the lifting angle is about 0-15 degrees, 70% -80% of the stone rapidly falls at one moment when the lifting angle reaches about 20 degrees (shown in fig. 4), and huge impact can cause the negative pressure state in the lifting oil cylinder within a short time, which has great influence on the service life of the lifting oil cylinder, and can cause gas in the lifting oil cylinder under serious conditions, and the gas can corrode precision elements such as pumps, valves and the like (gas corrosion) under high pressure; another problem is that when driving on an uphill bumpy road, part of the smaller stones fall onto the road surface from the rear end of the cargo compartment due to the absence of the rear baffle, thus threatening the driving safety of the vehicle behind; meanwhile, the fallen stones often cut off the rear vehicle tire, so that the service life of the tire is greatly shortened; the third problem is that the material loading is less, according to the specification of GBT 25689 plus 2010 earthwork mechanical dumper carriage capacity calibration, the rest angle is 26.6 degrees when the carriage capacity is calibrated, the stone rest plane is shown in figure 3, and the material loading of the warped tail carriage is obviously less due to the fact that the rear baffle is not arranged, and the baffle carriage and the warped tail carriage have the same length, width, height and inner size. The problems are common to mining dump trucks matched with the tilting tail compartment.
The baffle railway carriage or compartment takes the backplate so, and the leading reason lies in that it is used for transporting less density of volume soil material, sand material, garrulous stone, and the mixed material of three (hereinafter for short garrulous soil sand stone material), and in the use, the baffle railway carriage or compartment has two outstanding problems equally: one problem is that the baffle box is mainly used for soil layer stripping operation of coal mines and metal mines and transportation of loose materials at ports and docks, so that impact on a back door cannot be generated in the process of transporting and discharging soil-breaking sand and stone materials under general conditions; however, in some cases, especially in soil layer stripping operation, large stone materials often exist due to the influence of blasting and ground surface structure difference, the diameter of some materials can even reach 500mm-1000mm, and under the condition, when the cargo compartment unloads, the large stone can generate huge impact on the rear door, so that the welding seam of the rear door is cracked, and the failure rate is increased sharply; another problem is that if the loading position of the larger stone material in the cargo compartment is relatively close to the upper position, the larger stone can be clamped at the beam position at the upper end of the rear baffle plate during unloading, as shown in fig. 5, in this case, along with the increasing of the lifting angle, the mass center of the whole machine is continuously transferred backwards and upwards, when the mass center of the whole machine crosses the balance shaft, the vehicle can tip over and fall into the deep groove, and the serious result of vehicle damage and death can be caused in serious conditions, which happens in recent years in China. The above problems are common on mining dump trucks that match a damper compartment.
The basic characteristics and the outstanding problems in the using process of two typical cargo compartments of the current 6 x 4 mining dump truck are described above.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a remedy prior art not enough, provide a backplate initiative open-type goods railway carriage or compartment and adopt the mining dump truck of this goods railway carriage or compartment, can overcome the defect in current perk tail railway carriage or compartment, the baffle railway carriage or compartment use, promote flexibility and the security of using, solved the problem that exists among the prior art.
The utility model discloses a realize through following technical scheme:
a cargo compartment with a rear baffle actively opened comprises a cargo compartment body, wherein a lower turnover rear baffle is arranged at the rear end of the cargo compartment body and is connected with the cargo compartment body through a link mechanism;
the lower turnover rear baffle is driven by the connecting rod mechanism to be closed with the rear side cover of the cargo compartment body or separated from the rear side of the cargo compartment body and turned downwards below the cargo compartment body.
The lower turnover rear baffle is driven by a connecting rod mechanism and is combined with the rear side of the cargo compartment body to prevent the materials from falling off in the transportation process; the lower turnover rear baffle is driven by the connecting rod mechanism to be turned downwards to the lower part of the cargo compartment body for discharging.
The connecting rod mechanism comprises two connecting rods which are oppositely arranged on two sides of the cargo compartment body.
Each link mechanism is arranged at the outer side of the rear part of the cargo compartment body.
The connecting rod mechanism comprises a driving cylinder body, the bottom of the driving cylinder body is hinged with the outer side wall of the cargo compartment body, a piston rod of the driving cylinder body is hinged with the middle part of a driving rod, the top end of the driving rod is hinged with the cargo compartment body, and the bottom end of the driving rod is hinged with the outer side of the bottom end of the lower turnover rear baffle; a connecting rod is hinged between the bottom of the rear end of the cargo compartment body and the lower turnover rear baffle.
The top end of the connecting rod is rotatably connected with the bottom of the rear end of the cargo compartment body, and the bottom end of the connecting rod is rotatably connected with the middle part of the outer side of the lower turnover rear baffle.
When a piston rod of the driving cylinder body contracts, the lower turnover rear baffle is driven by the driving rod and the connecting rod to be parallel to the bottom wall of the cargo compartment body; when a piston rod of the driving cylinder body extends outwards, the lower turnover rear baffle is driven by the driving rod and the connecting rod to turn upwards and cover the rear side of the cargo compartment body.
The driving cylinder body is arranged on the outer side of the rear part of the cargo compartment body, and the connecting rod is arranged between the cargo compartment body on the inner side of the driving rod and the lower overturning rear baffle.
The connecting rod is provided with a through groove corresponding to the side wall of the lower turnover rear baffle plate, the through groove is arranged along the height direction of the lower turnover rear baffle plate, the middle part of the through groove is provided with a connecting shaft, and the bottom end of the connecting rod extends into the through groove and is connected with the connecting shaft in a rotating manner.
The through groove forms a space for the lower part of the connecting rod to move freely in the overturning process of the lower overturning rear baffle.
The cargo compartment with the actively opened rear baffle further comprises a controller and a position sensor, wherein the position sensor comprises a first proximity switch used for sensing that the lower turnover rear baffle descends to a lower limit position and a second proximity switch used for sensing that the lower turnover rear baffle and the cargo compartment body are covered to an upper limit position; the controller is electrically connected with the driving cylinder body.
The cargo compartment with the actively opened rear baffle further comprises an electromagnetic valve and a position sensor; the position sensor comprises a first proximity switch used for sensing that the lower turnover rear baffle plate descends to the lower limit position and a second proximity switch used for sensing that the lower turnover rear baffle plate and the cargo compartment body cover close to the upper limit position, and the first proximity switch, the second proximity switch, the driving cylinder body and the electromagnetic valve are respectively electrically connected with the controller.
The electromagnetic valve realizes the action of the oil cylinder of the driving cylinder body by controlling the opening of the oil way.
The first proximity switch is arranged at the bottom end of the rear part of the cargo compartment body, and the second proximity switch is arranged at the rear side of the cargo compartment body.
The controller may be a PIC/STM controller.
The height of the lower turnover rear baffle is 0.3-0.7 m.
The effective height of the lower turnover rear baffle is 0.3-0.5 m. The height that overturns backplate and exceeds this internal diapire of goods railway carriage or compartment promptly is effective height, can realize separating the shelves effect to the reality of goods material in the goods railway carriage or compartment.
The driving cylinder body is a hydraulic cylinder or an air cylinder.
A mining dump truck comprises the cargo compartment with the actively opened rear baffle.
The mining dump truck is a 6 x 4 mining dump truck.
The utility model has the advantages that:
the cargo compartment with the actively opened rear baffle is scientific and reasonable in structural design, the cargo compartment body is provided with the lower turnover rear baffle and the connecting rod mechanism through structural innovation of the cargo compartment body, and the hydraulic and electric control system is matched with the cargo compartment body, so that the outstanding problems of the conventional 6 x 4 mining dump truck tail tilting compartment and the baffle compartment in the use process are solved, the reliability of the lifting oil cylinder is indirectly improved, the reliability of the rear baffle of the cargo compartment is improved, and the service life of tires and the driving safety and the transportation efficiency of vehicles are also improved.
Drawings
FIG. 1 is a schematic structural diagram of a conventional tilting trunk;
FIG. 2 is a schematic view of a prior art baffle box;
FIG. 3 is a schematic view of a resting plane of conventional raised-tail-box stone materials;
FIG. 4 is a schematic view illustrating rapid falling of stone materials in a conventional tilting box;
FIG. 5 is a schematic view of a prior art damper compartment unloading situation;
FIG. 6 is a schematic structural view of the cargo compartment with actively opening tailgate according to the present invention;
FIG. 7 is a schematic view of the lower roll-over damper of FIG. 6 in a fully open condition;
FIG. 8 is a schematic view of the lower roll-over damper of FIG. 6 during closing/opening thereof;
FIG. 9 is a schematic view of the lower roll-over flapper of FIG. 6 in a fully closed position;
fig. 10 is a first control block diagram for opening and closing the tailgate of the tailgate actively-opened cargo box according to the present invention;
fig. 11 is a schematic diagram of the opening and closing control of the tailgate actively-opened cargo box of the present invention.
In the figure, 1 a cargo compartment body, 2 a lower turnover rear baffle, 3 a rear baffle active control oil cylinder, 4 driving rods, 5 connecting rods, 6 connecting shafts, 7 a first proximity switch, 8 a second proximity switch, 9 an electromagnetic valve, 10 a controller, 11 a rocker switch panel, 12 a hydraulic system circuit, 13 a balance shaft and 14 a rear baffle upper end beam.
Detailed Description
In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments in combination with the accompanying drawings.
As shown in fig. 1-5, it is a schematic structural diagram of the prior warp trunk and baffle compartment.
Example 1
As shown in fig. 6-10, the cargo box with the active opening type rear baffle comprises a cargo box body 1, a lower turnover rear baffle 2 is arranged at the rear end of the cargo box body, the lower turnover rear baffle is connected with the cargo box body 1 through a link mechanism, and the link mechanism comprises two pieces which are oppositely arranged at the outer side of the rear part of the cargo box body; the connecting rod mechanism comprises a rear baffle plate active control oil cylinder 3, the bottom of the rear baffle plate active control oil cylinder 3 is hinged with the outer side wall of the cargo compartment body 1, a piston rod of the rear baffle plate active control oil cylinder 3 is hinged with the middle part of a drive rod 4, the top end of the drive rod 4 is hinged with the cargo compartment body 1, the bottom end of the drive rod 4 is hinged with the outer side of the bottom end of the lower turnover rear baffle plate 2, and the bottom end of the lower turnover rear baffle plate is the bottom end of the lower turnover rear baffle plate when the lower turnover rear baffle plate is covered on the rear side of; a connecting rod 5 is hinged between the bottom of the rear end of the cargo box body 1 and the lower turnover rear baffle 2. The active control cylinders 3 of the rear baffle plates are arranged at the outer side of the rear part of the cargo compartment body 1, and the connecting rod 5 is arranged between the cargo compartment body 1 at the inner side of the driving rod 4 and the lower turnover rear baffle plate 2.
The top end of the connecting rod 5 is rotatably connected with the bottom of the rear end of the cargo compartment body 1, and the bottom end of the connecting rod 5 is rotatably connected with the middle part of the outer side of the lower turnover rear baffle 2.
When a piston rod of the rear baffle active control oil cylinder 3 contracts, the lower turnover rear baffle 2 is driven by the driving rod 4 and the connecting rod 5 to turn downwards to be parallel to the bottom wall of the cargo compartment body 1; when a piston rod of the rear baffle active control oil cylinder 3 extends outwards, the lower turnover rear baffle 2 is driven by the driving rod 4 and the connecting rod 5 to turn upwards and cover the rear side of the cargo compartment body 1.
Correspond on 2 lateral walls of baffle after overturning down the connecting rod is equipped with logical groove, leads to the groove and sets up along the baffle direction of height of overturning down, is equipped with connecting axle 6 at logical groove middle part, the bottom of connecting rod 5 stretch into logical groove and with the connecting axle rotates continuously. The through groove forms a space for the lower part of the connecting rod to move freely in the overturning process of the lower overturning rear baffle. The top end of the connecting rod 5 is rotationally connected with a connecting shaft arranged at the rear end of the bottom surface of the cargo compartment body.
To turning over down of lower upset backplate 2 to goods railway carriage or compartment body below and the lid closes two operating condition in goods railway carriage or compartment body rear side, can conveniently control through position sensor. Namely, be equipped with two position sensor at goods railway carriage or compartment body 1 rear portion bottom and rear side, be first proximity switch 7 and second proximity switch 8 respectively, first proximity switch is used for responding to down upset backplate 2 descend to spacing down, and second proximity switch is used for responding to down the upper limit that upset backplate 2 and goods railway carriage or compartment body lid closed. The first proximity switch, the second proximity switch and the active control cylinder 3 of the back baffle are respectively connected with the controller 10, and the controller receives position signals of the first proximity switch and the second proximity switch and then controls the action of the active control cylinder 3 of the back baffle.
The cargo compartment with the actively opened rear baffle is arranged on the cargo compartment of the mining dump truck, so that the defects of the conventional tilting tail compartment and the existing baffle compartment can be overcome, the flexibility of unloading and loading is improved, and the safety coefficient is improved. The working principle is as follows: wane switch and panel board are connected with the controller respectively in the driver's cabin, and the driver can pass through wane switch in the driver's cabin, by the flexible action of controller control backplate active control hydro-cylinder 3, the flexible drive link mechanism action of hydro-cylinder realizes closing and opening of upset backplate 2 down to this time upset backplate opens under the scalable bottom plate to goods railway carriage or compartment body 1 of back, upset backplate 2 height down can carry out the customization according to customer's demand. The specific working process is as follows: before the cargo compartment is loaded with materials, a driver presses a 'closing' button of a rocker switch panel 11, a controller 10 controls a rear baffle plate active control oil cylinder 3 to extend, a piston rod of the rear baffle plate active control oil cylinder pushes a driving rod 4 backwards, the driving rod 4 rotates anticlockwise backwards with the top end as the center, meanwhile, a lower turnover rear baffle plate 2 is driven by the bottom end of the driving rod to turn upwards gradually, at the moment, a connecting rod moves in a through groove and is matched with the driving rod to realize the upward turning of the lower turnover baffle plate and cover the rear side of the cargo compartment body, when the lower turnover rear baffle plate 2 is completely closed, a second proximity switch 8 is touched, the second proximity switch 8 immediately transmits an electric signal to the controller 10, the controller 10 controls the rear baffle plate active control oil cylinder 3 to extend to stop, meanwhile, a 'closing' indicator lamp on an instrument panel is lightened, and the driver knows that the lower turnover rear baffle plate is completely closed, the rocker switch returns to its neutral position (the "off" and "on" intermediate positions) by ceasing to press the "off button on the rocker switch. After the materials are loaded, a driver drives a vehicle to start transportation and arrives at a discharging place. Before the cargo compartment is unloaded, a driver presses an 'opening' button of a rocker switch panel, the controller 10 controls the shortening action of the active control oil cylinder 3 of the rear baffle, at the moment, a piston rod of the active control oil cylinder 3 of the rear baffle pulls a driving rod forwards, the driving rod rotates clockwise by taking the top of the driving rod as a center, thereby driving the connecting rod and the lower turnover rear baffle plate to gradually turn downwards to the lower part of the cargo compartment body, when the lower turnover rear baffle plate is completely opened, the first proximity switch is touched and immediately transmits an electric signal to the controller, the controller controls the rear baffle to actively control the oil cylinder to shorten and stop, meanwhile, an 'opening' indicator lamp on the instrument panel is on, after a driver sees the indicator lamp, the driver knows that the rear baffle is completely opened, stops pressing an 'opening' button on the rocker switch, and returns to the middle position (the middle position between 'closed' and 'opened'). After the lower turnover rear baffle is opened, the driver starts unloading, and returns to the loading site after the unloading is finished, and another cycle is started.
The cargo compartment with the actively opened rear baffle can well solve the problems that when the raised-tail compartment runs on an uphill bumpy road, the rear baffle is not arranged, part of stones fall onto the road surface from the rear end of the cargo compartment, the running safety of a rear vehicle is threatened, and the tires of the rear vehicle are cut; the problem that the tilting tail compartment has no rear door and too little loading material can be solved; the lower turnover rear baffle 2 of the cargo compartment with the actively opened rear baffle can be actively controlled to be opened and closed and can stretch to the lower surface of the bottom plate of the cargo compartment body 1 after being opened, so that the problems of cracking of a welding seam of the rear door and sharp rising of failure rate caused by impact on the rear door when a baffle compartment is loaded with larger stones for unloading can be solved; in addition, the rear retaining wall is easy to touch with the rear baffle of the existing baffle compartment and influence the discharging during the discharging process, and the problem is well solved by the active opening type cargo compartment with the rear baffle.
Example 2
As shown in fig. 6-9 and 11, the structure of the cargo compartment with the actively opening tailgate is the same as that of the cargo compartment with the actively opening tailgate in embodiment 1, except that the cargo compartment further includes a solenoid valve 9 and a position sensor; the rear baffle active control oil cylinder 3 controls the opening and closing of an oil way through an electromagnetic valve 9; the position sensor comprises a first proximity switch 7 used for sensing that the lower turnover rear baffle plate descends to the lower limit position and a second proximity switch 8 used for sensing that the lower turnover rear baffle plate and the cargo compartment body cover close to the upper limit position, wherein the first proximity switch, the second proximity switch and the electromagnetic valve are respectively electrically connected with a controller 10.
By adopting the mining dump truck with the rear baffle plate actively opening type cargo compartment, the opening and closing operation of the lower turnover rear baffle plate can be conveniently realized through the connection of the rocker switch and the instrument panel in the cab and the controller. The specific working process is as follows: before the cargo compartment loads materials, a driver presses a 'closing' button of a rocker switch panel 11, a controller 10 controls an electromagnetic valve 9 to be electrified, a valve core moves, high-pressure hydraulic oil of a valve block is led to a rear baffle active control oil cylinder 3 through a hydraulic system line 12, the oil cylinder extends, when the baffle 2 is completely closed after being turned over, the second proximity switch 8 is touched, the second proximity switch 8 immediately transmits an electric signal to the controller, the high-pressure hydraulic oil of the valve block stops communicating with the rear baffle plate to actively control the oil cylinder, the extension action of the oil cylinder stops, meanwhile, an off indicator lamp on the instrument panel is turned on, after the driver sees the indicator lamp, the driver knows that the rear baffle is completely closed, stops pressing an off button on the rocker switch panel 11, and returns to the middle position (the middle position between the off position and the on position). After the materials are loaded, a driver drives a vehicle to start transportation and arrives at a discharging place. Before the cargo compartment is unloaded, a driver presses an 'opening' button of a rocker switch panel, an electromagnetic valve 9 is electrified, a valve core moves, valve block high-pressure hydraulic oil is led to a rear baffle active control oil cylinder through a hydraulic system circuit 12, the oil cylinder shortens to act, when the rear baffle is completely opened, a first proximity switch at the position of the rear baffle is touched, the first proximity switch immediately transmits an electric signal to a controller, the controller controls the electromagnetic valve to be powered off, the valve core moves, the valve block high-pressure hydraulic oil stops being conducted to the rear baffle active control oil cylinder, the oil cylinder shortens to act, an 'opening' indicator lamp on a control instrument panel is lightened after the controller receives the signal, the driver knows that the rear baffle is completely opened after seeing the indicator lamp, the driver stops pressing the 'opening' button on the rocker switch, and the rocker switch returns to a middle position (between 'closing' and 'opening'). After the lower turnover rear baffle is opened, the driver starts unloading, and returns to the loading site after the unloading is finished, and another cycle is started.
The utility model discloses a lower upset backplate is in the tipper when opening and realizes the bottom below, and the blanking is noiseless during the discharge, compares current baffle railway carriage or compartment and uses more in a flexible way, when having eliminated the various drawbacks of current baffle railway carriage or compartment, has eliminated the interference between the goods railway carriage or compartment backplate direct fall on goods railway carriage or compartment rear and rear retaining wall.
The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.
The parts of the present invention not described in detail are the known techniques of those skilled in the art.
Claims (9)
1. A cargo compartment with a rear baffle actively opened comprises a cargo compartment body and is characterized in that a lower turnover rear baffle is arranged at the rear end of the cargo compartment body and is connected with the cargo compartment body through a link mechanism;
the lower turnover rear baffle is driven by the connecting rod mechanism to be closed with the rear side cover of the cargo compartment body or separated from the rear side of the cargo compartment body and turned downwards below the cargo compartment body.
2. The active tailgate-opening cargo compartment according to claim 1, wherein the linkage comprises two oppositely disposed sides of the cargo compartment body.
3. The active tailgate opening cargo box according to claim 1 or 2, wherein the link mechanism comprises a driving cylinder body, the bottom of the driving cylinder body is hinged with the outer side wall of the cargo box body, a piston rod of the driving cylinder body is hinged with the middle part of a driving rod, the top end of the driving rod is hinged with the cargo box body, and the bottom end of the driving rod is hinged with the outer side of the bottom end of the lower turnover tailgate; a connecting rod is hinged between the bottom of the rear end of the cargo compartment body and the lower turnover rear baffle.
4. The active tailgate cargo box according to claim 3, wherein when the piston rod of the driving cylinder is retracted, the lower flip tailgate is parallel to the bottom wall of the cargo box body under the driving of the driving rod and the connecting rod; when a piston rod of the driving cylinder body extends outwards, the lower turnover rear baffle is driven by the driving rod and the connecting rod to turn upwards and cover the rear side of the cargo compartment body.
5. The active tailgate cargo compartment according to claim 3, wherein a through groove is formed in the lower roll tailgate corresponding to the link, the through groove is formed along the height direction of the lower roll tailgate, a link shaft is provided in the middle of the through groove, and the bottom end of the link shaft extends into the through groove and is rotatably connected to the link shaft.
6. The active tailgate-opening cargo compartment according to claim 3, further comprising a controller and a position sensor, the position sensor comprising a first proximity switch for sensing the lowering of the lower roll tailgate to a lower limit and a second proximity switch for sensing the closing of the lower roll tailgate to an upper limit with the cargo compartment body; the controller is electrically connected with the driving cylinder body.
7. The active tailgate-opening cargo bed according to claim 3, further comprising a controller, a solenoid valve, and a position sensor; the position sensor comprises a first proximity switch used for sensing that the lower turnover rear baffle plate descends to the lower limit position and a second proximity switch used for sensing that the lower turnover rear baffle plate and the cargo compartment body cover close to the upper limit position, and the first proximity switch, the second proximity switch, the driving cylinder body and the electromagnetic valve are respectively electrically connected with the controller.
8. A mining dump truck characterized by comprising a tailgate actively-opened cargo bed according to any one of claims 1-7.
9. The mining dump truck according to claim 8, wherein the mining dump truck is a 6 x 4 mining dump truck.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103797A (en) * | 2019-06-10 | 2019-08-09 | 临工集团济南重机有限公司 | A kind of rear baffle active open-type loading space and the quarry tipper using the loading space |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110103797A (en) * | 2019-06-10 | 2019-08-09 | 临工集团济南重机有限公司 | A kind of rear baffle active open-type loading space and the quarry tipper using the loading space |
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Address after: No.2676 Kejia Road, high tech Zone, Jinan City, Shandong Province, 250104 Patentee after: Lingong Heavy Machinery Co.,Ltd. Address before: 250101 no.2676 Kejia Road, high tech Zone, Jinan City, Shandong Province Patentee before: LINGONG GROUP JINAN HEAVY MACHINERY Co.,Ltd. |