CN119428155A - A commercial vehicle fuel tank anti-slip device and an active control anti-slip system - Google Patents

A commercial vehicle fuel tank anti-slip device and an active control anti-slip system Download PDF

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Publication number
CN119428155A
CN119428155A CN202411819770.9A CN202411819770A CN119428155A CN 119428155 A CN119428155 A CN 119428155A CN 202411819770 A CN202411819770 A CN 202411819770A CN 119428155 A CN119428155 A CN 119428155A
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CN
China
Prior art keywords
fixing frame
tightening bolt
band
fuel tank
gear
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202411819770.9A
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Chinese (zh)
Inventor
焦云鹏
李丁
郭建坤
王志豪
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Dongfeng Trucks Co ltd
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Dongfeng Trucks Co ltd
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Filing date
Publication date
Application filed by Dongfeng Trucks Co ltd filed Critical Dongfeng Trucks Co ltd
Priority to CN202411819770.9A priority Critical patent/CN119428155A/en
Publication of CN119428155A publication Critical patent/CN119428155A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/073—Tank construction specially adapted to the vehicle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K15/00—Arrangement in connection with fuel supply of combustion engines or other fuel consuming energy converters, e.g. fuel cells; Mounting or construction of fuel tanks
    • B60K15/03—Fuel tanks
    • B60K15/063—Arrangement of tanks
    • B60K15/067—Mounting of tanks

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)

Abstract

本申请涉及底盘油箱系统技术领域，本申请实施例提供一种商用车油箱的防窜动装置，包含：限位支撑装置，包含固定架、箍带和凸起结构，箍带的两端固定于固定架的两端，且环抱所述油箱；油箱的外部对应于每个箍带的两侧均设置一对用于限位的凸起结构；若干自动预紧装置，每个自动预紧装置包含片状压力传感器、电动传动机构及预紧螺栓，片状压力传感器设置于凸起结构和箍带缝隙之间；预紧螺栓连接固定架端部和箍带端部；当油箱有窜动趋势且片状压力传感器的压力值大于设定上边界值时，电动传动机构控制预紧螺栓转动，使得固定架端部和箍带端部相互靠近，绷紧所述箍带。本申请的防窜动装置及主动控制防窜动系统，能够更高级别防止油箱窜动。

The present application relates to the technical field of chassis fuel tank systems. The embodiment of the present application provides an anti-swaying device for a commercial vehicle fuel tank, comprising: a limiting support device, comprising a fixing frame, a hoop and a protruding structure, the two ends of the hoop are fixed to the two ends of the fixing frame and embrace the fuel tank; a pair of protruding structures for limiting are arranged on the outside of the fuel tank corresponding to the two sides of each hoop; a number of automatic pre-tightening devices, each of which comprises a sheet pressure sensor, an electric transmission mechanism and a pre-tightening bolt, the sheet pressure sensor is arranged between the protruding structure and the gap of the hoop; the pre-tightening bolt connects the end of the fixing frame and the end of the hoop; when the fuel tank has a tendency to move and the pressure value of the sheet pressure sensor is greater than the set upper boundary value, the electric transmission mechanism controls the pre-tightening bolt to rotate, so that the end of the fixing frame and the end of the hoop are close to each other, and the hoop is tightened. The anti-swaying device and the active control anti-swaying system of the present application can prevent the fuel tank from moving at a higher level.

Description

Anti-shifting device and active control anti-shifting system of commercial vehicle oil tank
Technical Field
The invention relates to the technical field of chassis oil tank systems, in particular to an anti-shifting device and an active control anti-shifting system of a commercial vehicle oil tank.
Background
At present, the front end face of a main oil tank of a commercial vehicle is a urea tank and a supporting device thereof, the rear end face of the main oil tank is a rear fender, wherein the gap between the rear end face of the main oil tank and the rear fender is smaller, and an indicator lamp is arranged on the rear fender adjacent to the rear end face of the main oil tank. The distance between the front end face and the rear end face of the main oil tank is especially compact in part of commercial vehicle types, and once the main oil tank moves, the indicator light is crashed out, and the oil tank is damaged if the main oil tank is heavy.
In the related art, in order to solve the problem of the oil tank movement, a person skilled in the art sets more than one pair of fixing protrusions on the oil tank, binds the oil tank by connecting fastening bands, each pair of fixing protrusions is used for limiting the connecting fastening bands, and binds the oil tank movement by combining the fixing protrusions with the connecting fastening bands.
But fixed protruding and connection fastening area can take place not hard up after long-time use, and the both ends junction of connection fastening area perhaps connects the fastening area itself and can appear deformation, and this leads to often after the installation a period, the oil tank still can take place the drunkenness, and then leads to striking back fender, or urea jar and strutting arrangement thereof, causes bad result.
Disclosure of Invention
The application provides an anti-shifting device and an active control anti-shifting system for a commercial vehicle oil tank, which can prevent the oil tank from shifting at a higher level.
In a first aspect, an embodiment of the present application provides an anti-tamper device for a fuel tank of a commercial vehicle, including:
The limiting support device comprises a fixing frame, a strap and a protruding structure, wherein the fixing frame is L-shaped and is used for bearing an oil tank; the two ends of the hoops are fixed at the two ends of the fixing frame and encircle the oil tank, and a pair of protruding structures for limiting are arranged outside the oil tank and correspond to the two sides of each hoops;
the automatic pre-tightening device comprises a sheet-shaped pressure sensor, an electric transmission mechanism and a pre-tightening bolt, wherein the sheet-shaped pressure sensor is arranged between a bulge structure and a strap gap, the pre-tightening bolt is connected with the end part of a fixing frame and the end part of the strap, and when the oil tank has a movement trend and the pressure value of the sheet-shaped pressure sensor is larger than a set upper boundary value, the electric transmission mechanism controls the pre-tightening bolt to rotate so that the end part of the fixing frame and the end part of the strap are close to each other, and the strap is tightened.
In combination with the first aspect, in one implementation mode, the pre-tightening bolt is provided with a thread-free section and a thread section, the thread-free section is matched with the end part of the strap, the thread section is matched with the end part of the fixing frame, the extending end of the pre-tightening bolt is coaxially arranged with one gear in the gear set, and the thread section drives the end part of the strap to be close to the end part of the fixing frame when the gear rotates.
In combination with the first aspect, in one implementation mode, the electric transmission mechanism comprises a motor, a gear pair and two mandrels, wherein the two mandrels are respectively fixed at the end part of the fixed frame and the end part of the strap;
The motor is arranged at the bottom of the horizontal frame of the fixing frame, the gear pair comprises a driving gear and a driven gear, the driven gear is coaxially fixed at the extending end of the pre-tightening bolt, and the motor drives the pre-tightening bolt to rotate through the driving gear and the driven gear.
With reference to the first aspect, in one implementation manner, the anti-play device further includes a controller, where the controller is configured to obtain deceleration, oil quantity, and gradient of a current running state of the vehicle, and look up a table according to the deceleration, oil quantity, and gradient to obtain a set upper boundary value and a set lower boundary value of the current running state;
When the pressure value of the sheet-shaped pressure sensor is larger than the set upper boundary value, the controller starts to tighten the strap through the motor, the gear set and the pre-tightening bolt until the pressure value of the sheet-shaped pressure sensor is equal to the set lower boundary value, and the motor stops.
With reference to the first aspect, in one embodiment, at least one of the two ends of each strap is connected to an end of the fixing frame by a pre-tightening bolt;
the limiting and supporting device comprises more than two fixing frames and the same number of hoops.
In combination with the first aspect, in one embodiment, when the bump structure is designed, the force to be born by the bump structure during braking is calculated according to the maximum capacity of the oil tank, the density of the oil, the maximum absolute value of the acceleration of the vehicle and the maximum safety slope of the vehicle, and then the total design length of the bump structure is estimated according to the tearing strength of the bump structure material.
In a second aspect, an embodiment of the present application provides an active control anti-play system for a fuel tank of a commercial vehicle, including:
A play warning lamp arranged on the instrument panel;
the oil quantity sensor is arranged in the oil tank and is used for acquiring oil quantity data of the current running state;
The inclination sensor is arranged outside the oil tank and is used for acquiring the gradient of the vehicle in the current running state;
the acceleration sensor is used for acquiring the absolute value of the acceleration in the current running state;
The vehicle-mounted ECU is used for receiving data of the oil mass sensor, the inclination sensor, the acceleration sensor and all the sheet-shaped pressure sensors in the anti-moving device, and looking up a table according to the absolute value data of the oil mass, the inclination and the acceleration to obtain a set upper boundary value and a set lower boundary value of the current running state;
When the pressure value of any sheet-shaped pressure sensor is larger than the set upper boundary value, the vehicle-mounted ECU controls the movement warning lamp to flash, and the vehicle-mounted ECU tightens the corresponding strap through the motor, the gear set and the pre-tightening bolt until the pressure value of the corresponding sheet-shaped pressure sensor is equal to the set lower boundary value, the motor stops, and the movement warning lamp stops flashing.
In combination with the second aspect, in one implementation mode, the pre-tightening bolt is provided with a thread-free section and a thread section, the thread-free section is matched with the end part of the strap, the thread section is matched with the end part of the fixing frame, the extending end of the pre-tightening bolt is coaxially arranged with one gear in the gear set, and the thread section drives the end part of the strap to be close to the end part of the fixing frame when the gear rotates.
In combination with the second aspect, in one implementation mode, the electric transmission mechanism comprises a motor, a gear pair and two mandrels, wherein the two mandrels are respectively fixed at the end part of the fixed frame and the end part of the strap;
The motor is arranged at the bottom of the horizontal frame of the fixing frame, the gear pair comprises a driving gear and a driven gear, the driven gear is coaxially fixed at the extending end of the pre-tightening bolt, and the motor drives the pre-tightening bolt to rotate through the driving gear and the driven gear.
With reference to the second aspect, in one embodiment, at least one of the two ends of each strap is connected to an end of the fixing frame by a pre-tightening bolt;
the limiting and supporting device comprises more than two fixing frames and the same number of hoops.
The technical scheme provided by the embodiment of the application has the beneficial effects that at least:
1. The application relates to an anti-shifting device, which is used for limiting and binding an oil tank through a fixing frame, a hoop and a convex structure and preventing the oil tank from shifting, and is most critical that a plurality of automatic pre-tightening devices are arranged on the basis of the anti-shifting device and used for connecting the end part of the fixing frame and the end part of the hoop, a sheet-shaped pressure sensor is used for monitoring whether the pressure between the convex structure and a gap of the hoop is normal or not, when the pressure value of the sheet-shaped pressure sensor is abnormal, namely, the shifting trend exists, and the pressure value of the sheet-shaped pressure sensor is larger than a set upper boundary value, a motor controls a pre-tightening bolt to rotate through a gear set, so that the hoop is tightened, when the oil tank does not shift, the oil tank is prevented from shifting fundamentally, and particularly, the limiting support device has a service life for a point, and can prevent the oil tank from shifting at a higher level.
2. The application provides an anti-shifting device, which provides an ingenious electric transmission mechanism, wherein the pre-tightening motion is realized at the end part of a strap and the end part of a fixing frame, the electric transmission mechanism comprises a motor, a gear pair and two mandrels, a pre-tightening bolt vertically penetrates through the two mandrels, the pre-tightening bolt is in non-threaded connection (namely through hole penetrating connection) with one mandrel, the pre-tightening bolt is in threaded connection with the other mandrel, the motor drives a driving gear to rotate, the driving gear drives a driven gear to rotate, and further drives the pre-tightening bolt to rotate, so that the two mandrels are driven to approach each other, and the purpose of tightening the strap is achieved.
3. According to the active control anti-channeling system, the oil quantity, the inclination and the acceleration absolute value of the current running state are obtained through the oil quantity sensor, the inclination sensor and the acceleration sensor, the vehicle-mounted ECU looks up the oil quantity, the inclination and the acceleration absolute value to obtain the set upper boundary value and the set lower boundary value of the current running state, when the pressure value of any sheet pressure sensor is larger than the set upper boundary value, the vehicle-mounted ECU controls the channeling early warning lamp to flicker, the vehicle-mounted ECU actively controls the motor to rotate, the motor tightens the corresponding bands through the gear set and the pre-tightening bolts until the pressure value of the corresponding sheet pressure sensor is equal to the set lower boundary value, the motor stops, the channeling early warning lamp stops flickering, the anti-channeling system uniformly and comprehensively manages all the bands, and targeted pre-tightening is carried out, so that the anti-channeling of the oil tank at a higher level is realized.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a raised structure and a band of an anti-rattle device according to an embodiment of the present application;
FIG. 2 is a side view of a fuel tank, raised structure and band provided in an embodiment of the present application;
FIG. 3 is a bottom view of FIG. 1;
FIG. 4 is an enlarged view of a portion of FIG. 1A;
FIG. 5 is a bottom view of FIG. 4;
FIG. 6 is a block diagram of an anti-tamper system provided by an embodiment of the present application;
in the figure, 1, an oil tank, 2, a convex structure, 3, a hoop, 4, a fixing frame, 5, a driven gear, 6, a pre-tightening bolt, 7, a driving gear, 8 and a mandrel.
Detailed Description
In order that those skilled in the art will better understand the present application, a technical solution in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The embodiment of the application provides an anti-shifting device for a commercial vehicle oil tank, which can prevent the oil tank from shifting at a higher level and solve the technical problem that the traditional technical scheme for preventing the oil tank from shifting still can appear shifting after long-time use so as to impact a rear fender or a urea tank.
It is worth to say that the anti-moving device of the application is not only aimed at the oil tank, but also aimed at various gas tanks, and can be used for preventing the gas tanks from moving.
In a first aspect, as shown in fig. 1 to 5, the present application discloses an embodiment of an anti-shifting device of a fuel tank of a commercial vehicle, where the anti-shifting device includes a limiting support device and a plurality of automatic pretensioning devices.
Wherein, limit support device contains mount 4, strap 3 and protruding structure 2, and mount 4 is L shape steel construction, L shape steel construction bearing oil tank 1. The two ends of the strap 3 are fixed at the two ends of the fixing frame 4 and encircle the oil tank 1. The outside of the oil tank 1 is provided with more than one pair of protruding structures 2 for limiting corresponding to the width two sides of each strap 3.
The fixing frame 4 lifts the bearing, the hoops 3 are bound and fixed, the protruding structures 2 further limit the movement of the hoops 3, and the combination prevents the oil tank 1 from moving. The protruding structure 2 can improve the assembly efficiency, through increasing protruding structure 2 on the oil tank 1, the workman can find the mounted position of strap rapidly when the assembly to improve assembly efficiency. The raised structure 2 reduces the cost, and the mounting position of the strap can be positioned through the raised structure position without additional positioning marks.
The bump structure 2 and the strap are matched, so that collision risk of the oil tank and surrounding parts can be reduced, and maintenance cost is reduced. Due to the presence of the protruding structure 2, it is easier to locate the correct position of the band when checking and maintaining the tank, thus reducing the difficulty and cost of maintenance.
The mounting of the straps 3 between the raised structures 2 will on the one hand help the workers to find the correct mounting position quickly by using the two raised structures 2 as positioning references for the workers during the assembly process, and on the other hand the raised structures 2 increase the resistance to the relative movement between the straps 3 and the tank 1, preventing the tank 1 from shaking during the running of the car.
Wherein, a plurality of automatic preloading devices that are used for connecting mount 4 tip and strap 3 tip, every automatic preloading device contains slice pressure sensor, motor, gear train and pretension bolt 6, slice pressure sensor sets up in protruding structure 2 and strap 3 gap between, when the oil tank does not take place the drunkenness, slice pressure sensor's pressure value is normal, when the oil tank does not have the drunkenness trend, slice pressure sensor's pressure value can become big or diminish, judge through the change of pressure value, the oil tank has the drunkenness trend. When the oil tank 1 has a tendency of jumping and the pressure value of the sheet-shaped pressure sensor is larger than a set upper boundary value, the motor controls the pretightening bolt to rotate through the gear set, and the belt 3 is tightened.
It is worth to say that the automatic pre-tightening device of the application does not remedy after the oil tank is shifted, but pre-tightens when the oil tank has a shifting trend, thereby fundamentally avoiding the oil tank from shifting.
The application relates to an anti-shifting device, which is used for limiting and binding an oil tank 1 through a fixing frame 4, a hoop 3 and a convex structure 2 to prevent the oil tank from shifting, and is characterized in that a plurality of automatic pre-tightening devices for connecting the end part of the fixing frame 4 with the end part of the hoop 3 are arranged on the basis, a sheet-shaped pressure sensor is used for monitoring whether the pressure between a gap of the convex structure 2 and the gap of the hoop 3 is normal or not, when the pressure value of the sheet-shaped pressure sensor is abnormal, namely, the shifting trend is larger than a set upper boundary value, a motor controls a pre-tightening bolt to rotate through a gear set to tighten the hoop 3, when the oil tank 1 does not shift but only has the shifting trend, the oil tank is prevented from shifting from the root, and the oil tank can be prevented from shifting at a higher level especially for the situation that the limiting and supporting device has a service life.
Further, in one embodiment, the pretension bolt 6 has an unthreaded section and a threaded section.
The unthreaded section matches in strap 3 tip, and the threaded section matches in the tip of mount 4, and the stretching end of pretension bolt 6 sets up with one of them gear in the gear train is coaxial, and the threaded section drives the tip that drives strap 3 tip and be close to the tip of mount 4 when the gear is rotatory, and then makes strap 3 tighten, reaches the purpose of fastening oil tank 1.
As shown in fig. 4, the cap end of the pre-tightening bolt is a non-threaded section, and the extending end of the pre-tightening bolt, i.e., the adjacent gear, is a threaded section.
According to the anti-shifting device, the pre-tightening bolt 6 is divided into the unthreaded section and the threaded section, the unthreaded section and the threaded section are respectively matched with the end part of the strap 3 and the end part of the fixing frame 4, the unthreaded section can idle, the threaded section can drive the two end parts to be close to each other, the strap 3 is tightened, the purpose of tightening the oil tank 1 is achieved, and when the oil tank 1 has a shifting trend, the oil tank 1 is prevented from shifting.
As shown in fig. 4 and 5, further, in one embodiment, the electric transmission mechanism comprises a motor, a gear pair and two spindles 8.
Two mandrels 8 are fixed to the end of the holder 4 and the end of the strap 3, respectively, to provide a basis for subsequent connection. The pretension bolt 6 extends perpendicularly through the two mandrels 8, in particular the pretension bolt 6is perpendicular to the middle of the length of the two mandrels 8. The mandrel 8 at the end of the hoop 3 is matched with the unthreaded section, and the mandrel 8 at the end of the fixing frame 4 is matched with the threaded section.
Specifically, the fixing frame 4 is divided into a vertical frame and a horizontal frame, the motor is arranged at the bottom of the horizontal frame of the fixing frame, the gear pair comprises a driving gear 7 and a driven gear 5, the driven gear 5 is coaxially fixed at the extending end of the pre-tightening bolt, the driving gear 7 is arranged at the output end of the motor, and the motor drives the pre-tightening bolt to rotate through the driving gear 7 and the driven gear 5.
The application provides an ingenious electric transmission mechanism, which is used for realizing pre-tightening motion at the end part of a strap 3 and the end part of a fixing frame 4, wherein the electric transmission mechanism comprises a motor, a gear pair and two mandrels 8, a pre-tightening bolt 6 vertically penetrates through the two mandrels 8, the pre-tightening bolt 6 is in non-threaded connection (namely through hole penetrating connection) with one mandrel 8, the pre-tightening bolt 6 is in threaded connection with the other mandrel 8, the motor drives a driving gear to rotate, and the driving gear drives a driven gear to rotate, so that the pre-tightening bolt is driven to rotate, and the two mandrels 8 are driven to approach each other, so that the purpose of tightening the strap is achieved.
Further, in an embodiment, the anti-shifting device further includes a controller, and the controller is configured to obtain a deceleration, an oil amount, and a gradient of a current running state of the vehicle, where the deceleration may be directly obtained, the oil amount may be obtained by an oil amount sensor, and the gradient may be obtained by a gradient sensor.
The controller obtains a set upper boundary value and a set lower boundary value of the current running state according to the deceleration, the oil quantity and the gradient table lookup. Specifically, the inertial force is different even if there is no tendency of play at different decelerations, different amounts of oil, and different gradients of the vehicle, so it is necessary to set different set upper and lower boundary values for different current running states.
Specifically, the set upper boundary value and the set lower boundary value are weighted by the normal inertial pressing force without the tendency of play measured in advance.
When the pressure value of the sheet-shaped pressure sensor is larger than the set upper boundary value, the controller starts to tighten the strap 3 through the motor, the gear set and the pre-tightening bolt, so that the pressure value measured by the sheet-shaped pressure sensor is smaller and smaller until the pressure value of the sheet-shaped pressure sensor is equal to the set lower boundary value, the sheet-shaped pressure sensor indicates that the sheet-shaped pressure sensor is completely tightened, the oil tank has no tendency of jumping, and the controller controls the motor to stop.
According to the anti-shifting device, the controller is used for acquiring the deceleration, the oil quantity and the gradient of the current running state of the vehicle, the controller looks up the table according to the deceleration, the oil quantity and the gradient to obtain the set upper boundary value and the set lower boundary value of the current running state, different upper and lower boundary values are given for different states of the oil tank, compared with the set fixed threshold value, the boundary value is set more accurately, the shifting trend can be judged accurately, and the purpose of preventing shifting at a higher level is achieved.
Further, in an embodiment, at least one of the two ends of each strap 3 is connected to the end of the fixing frame 4 through a pre-tightening bolt 6, specifically, one end of each strap 3 may be fixed through the pre-tightening bolt 6, and the pre-tightening may be performed after the limit supporting device is used for a long time. The strap 3 may be fixed at both ends by the pre-tightening bolts 6, and may be pre-tightened after the limit supporting device is used for a long time.
The limit supporting device comprises more than two fixing frames 4 and the same number of hoops 3. Specifically, the number of the fixing frames 4 may be two, three, or four.
Further, in an embodiment, when the bump structure 2 is designed, the force to be born by the bump structure 2 during braking is calculated according to the maximum capacity of the oil tank, the density of the oil, the maximum absolute value of the acceleration of the vehicle and the maximum safety slope of the vehicle, and then the total design length of the bump structure 2 is estimated according to the tearing strength of the material of the bump structure 2.
Specifically, the maximum absolute value of the acceleration of the vehicle is the national standard value, 7m/s 2. The maximum safety slope of the vehicle is also national standard value, 16.5 °.
The density of the national standard diesel oil is generally in the range of 0.83-0.855 g/ml, and the mass of an 800L oil tank is m=800 multiplied by 1000 multiplied by 0.83-0.855/1000=664-684 kg.
The forward thrust of the 800L oil tank is maximum F=664-684×7=4648-4788N when the oil tank brakes on a flat ground. And the maximum force when braking on a gradient is fp= (4648-4788 n)/cos (16.5) =6621-6820 n.
When the strap is loosened, the raised structure 2 of the oil tank bears 6621-6820N of force.
The tearing strength of the material of the protruding structure 2 is required to be more than or equal to 10N/mm, and the total design length of the protruding structure is required to reach 6621-6820/10=662.1-682 mm.
When the oil tank is provided with two sections of hoops, the total length is 682mm, and each section is 341mm.
When the oil tank is provided with three sections of hoops, the total length is 684mm, and each section is 228mm.
Preferably, the band 3 comprises a steel strip and a rim strip, the steel strip being located in the lower layer and the rim strip being located in the upper layer, the raised structure being more than three times the total height of the steel strip and rim strip.
In one example, the height of the raised structures was set to 15mm (3 times the thickness of the band, 1.8.+ -. 0.1mm for the steel band and 3.+ -. 0.5mm for the rim band). The protrusion width was 27mm (band 80mm, protrusion width was 81/3=27 mm).
It is worth to say that, anti-channeling device still can be used in the gas pitcher, and when anti-channeling device used in the gas pitcher, limit support device set up as usual, but the power supply of automatic preloading device adopts gas pitcher and solenoid valve to realize, and gas pitcher and solenoid valve drive gear rotation realizes pretension bolt rotation.
As shown in fig. 6, in a second aspect, the application further discloses an embodiment of an active control anti-movement system of a fuel tank of a commercial vehicle, wherein the anti-movement system comprises a movement warning lamp, a fuel quantity sensor, a gradient sensor, an acceleration sensor and a vehicle-mounted ECU.
Wherein, the drunkenness early warning lamp sets up in the panel board.
The oil quantity sensor is arranged in the oil tank and used for acquiring oil quantity data of the current running state.
The inclination sensor is arranged outside the oil tank and used for acquiring the gradient of the vehicle in the current running state.
And the acceleration sensor is used for acquiring the absolute value of the acceleration of the current running state.
The vehicle-mounted ECU is in signal connection with the oil mass sensor, the inclination sensor, the acceleration sensor and all the sheet-shaped pressure sensors in the anti-shifting device, and is used for receiving data of the oil mass sensor, the inclination sensor, the acceleration sensor and all the sheet-shaped pressure sensors in the anti-shifting device, and obtaining a set upper boundary value and a set lower boundary value of the current running state according to the oil mass, the inclination and the acceleration absolute value data in a table look-up mode.
When the pressure value of any sheet-shaped pressure sensor is larger than the set upper boundary value, the vehicle-mounted ECU controls the movement warning lamp to flash, and the vehicle-mounted ECU tightens the corresponding strap 3 through the motor, the gear set and the pre-tightening bolt until the pressure value of the corresponding sheet-shaped pressure sensor is equal to the set lower boundary value, the motor stops, and the movement warning lamp stops flashing.
Specifically, when three bands 3 exist, if one band 3 is abnormal, the corresponding anti-moving device is controlled to tighten the corresponding band 3.
According to the active control anti-channeling system, the oil quantity, the inclination and the acceleration absolute value of the current running state are obtained through the oil quantity sensor, the inclination sensor and the acceleration sensor, the vehicle-mounted ECU looks up the oil quantity, the inclination and the acceleration absolute value to obtain the set upper boundary value and the set lower boundary value of the current running state, when the pressure value of any sheet pressure sensor is larger than the set upper boundary value, the vehicle-mounted ECU controls the channeling pre-warning lamp to flash, the vehicle-mounted ECU actively controls the motor to rotate, the motor tightens the corresponding bands 3 through the gear set and the pre-tightening bolt until the pressure value of the corresponding sheet pressure sensor is equal to the set lower boundary value, the motor stops, the channeling pre-warning lamp stops flashing, and the anti-channeling system comprehensively manages all the bands in a unified way, performs targeted pre-tightening, and achieves higher-level oil tank anti-channeling.
Further, the active control anti-play system of the present application, in one example, is shown in table 1:
TABLE 1
When the detection times are 1, the pressure value detected by the sheet-shaped pressure sensor is larger than the set upper boundary value (734N) of the current running state, namely 737N > 732N, which indicates that the oil tank 1 has a movement trend, and the vehicle-mounted ECU actively controls the motor to tighten the pre-tightening bolt to tighten the strap.
The detection times are 2-8, the pre-tightening bolts are gradually tightened, and the hoops are gradually tightened.
Until the detection times are 9, the pressure value detected by the sheet-shaped pressure sensor is smaller than the set lower boundary value (244.67N) of the current running state, namely, 243N <244.67N, which indicates that the oil tank 1 has no movement trend, the vehicle-mounted ECU actively controls the motor to stop, and the movement warning lamp stops flashing.
Specifically, detection is performed between two adjacent detections at a set time interval.
Further, the active control anti-play system of the present application, in another example, is shown in table 2:
TABLE 2
When the detection times are 1, the pressure value detected by the sheet-shaped pressure sensor is larger than the set upper boundary value (871N) of the current running state, namely 873N >871N, which indicates that the oil tank 1 has a movement trend, and the vehicle-mounted ECU actively controls the motor to tighten the pre-tightening bolt to tighten the strap.
The detection times are 2-7, the pre-tightening bolts are gradually tightened, and the hoops are gradually tightened.
Until the detection times are 8, the pressure value detected by the sheet-shaped pressure sensor is smaller than the set lower boundary value (290.33N) of the current running state, namely 287N <290.33N, which indicates that the oil tank 1 has no movement trend, the vehicle-mounted ECU actively controls the motor to stop, and the movement warning lamp stops flashing.
Further, in one embodiment, the pretension bolt 6 has an unthreaded section and a threaded section.
The unthreaded section matches in strap 3 tip, and the threaded section matches in the tip of mount 4, and the stretching end of pretension bolt 6 sets up with one of them gear in the gear train is coaxial, and the threaded section drives the tip that drives strap 3 tip and be close to the tip of mount 4 when the gear is rotatory, and then makes strap 3 tighten, reaches the purpose of fastening oil tank 1. As shown in fig. 4, the cap end of the pre-tightening bolt is a non-threaded section, and the extending end of the pre-tightening bolt, i.e., the adjacent gear, is a threaded section.
According to the active control anti-shifting system, the pre-tightening bolt 6 is divided into the unthreaded section and the threaded section, the unthreaded section and the threaded section are respectively matched with the end part of the strap 3 and the end part of the fixing frame 4, the unthreaded section can idle, the threaded section can drive the two end parts to be close to each other, the strap 3 is tightened, the purpose of tightening the oil tank 1 is achieved, and when the oil tank 1 has a shifting trend, the oil tank 1 is prevented from shifting.
As shown in fig. 4 and 5, further, in one embodiment, the electric transmission mechanism comprises a motor, a gear pair and two spindles 8.
Two mandrels 8 are fixed to the end of the holder 4 and the end of the strap 3, respectively, to provide a basis for subsequent connection. The pretension bolt 6 extends perpendicularly through the two mandrels 8, in particular the pretension bolt 6 is perpendicular to the middle of the length of the two mandrels. The mandrel 8 at the end of the hoop 3 is matched with the unthreaded section, and the mandrel 8 at the end of the fixing frame 4 is matched with the threaded section.
Specifically, the fixing frame 4 is divided into a vertical frame and a horizontal frame, the motor is arranged at the bottom of the horizontal frame of the fixing frame, the gear pair comprises a driving gear 7 and a driven gear 5, the driven gear 5 is coaxially fixed at the extending end of the pre-tightening bolt, the driving gear 7 is arranged at the output end of the motor, and the motor drives the pre-tightening bolt to rotate through the driving gear 7 and the driven gear 5.
The active control anti-shifting system provided by the application provides an ingenious electric transmission mechanism, the pre-tightening motion is realized at the end part of the strap 3 and the end part of the fixing frame 4, the electric transmission mechanism comprises a motor, a gear pair and two mandrels 8, the pre-tightening bolt 6 vertically penetrates through the two mandrels 8, the pre-tightening bolt 6 is in non-threaded connection (namely, through hole penetrating connection) with one mandrel 8, the pre-tightening bolt 6 is in threaded connection with the other mandrel 8, the motor drives a driving gear to rotate, and the driving gear drives a driven gear to rotate, so that the pre-tightening bolt is driven to rotate, and the two mandrels 8 are driven to approach each other, so that the purpose of tightening the strap is achieved.
Further, in an embodiment, at least one of the two ends of each strap 3 is connected to the end of the fixing frame 4 through a pre-tightening bolt 6, specifically, one end of each strap 3 may be fixed through the pre-tightening bolt 6, and the pre-tightening may be performed after the limit supporting device is used for a long time. The strap 3 may be fixed at both ends by the pre-tightening bolts 6, and may be pre-tightened after the limit supporting device is used for a long time.
The limit supporting device comprises more than two fixing frames 4 and the same number of hoops 3. Specifically, the number of the fixing frames 4 may be two, three, or four.
In the description of the present application, it should be noted that the azimuth or positional relationship indicated by the terms "upper", "lower", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present application and simplifying the description, and are not indicative or implying that the apparatus or element in question must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Unless specifically stated or limited otherwise, the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, mechanically connected, electrically connected, directly connected, or indirectly connected via an intervening medium, or may be in communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.
It should be noted that in the present application, relational terms such as "first" and "second" and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises an element.
The foregoing is only a specific embodiment of the application to enable those skilled in the art to understand or practice the application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1.一种商用车油箱的防窜动装置，其特征在于，包含：1. A device for preventing the oil tank of a commercial vehicle from swaying, characterized in that it comprises: 限位支撑装置，包含固定架(4)、箍带(3)和凸起结构(2)，所述固定架(4)呈L形，且承托油箱(1)；所述箍带(3)的两端固定于固定架(4)的两端，且环抱所述油箱(1)；所述油箱(1)的外部对应于每个箍带(3)的两侧均设置一对用于限位的凸起结构(2)；The position limiting support device comprises a fixing frame (4), a band (3) and a protruding structure (2); the fixing frame (4) is L-shaped and supports the oil tank (1); the two ends of the band (3) are fixed to the two ends of the fixing frame (4) and surround the oil tank (1); a pair of protruding structures (2) for position limiting are arranged on the outside of the oil tank (1) corresponding to the two sides of each band (3); 若干自动预紧装置，每个自动预紧装置包含片状压力传感器、电动传动机构及预紧螺栓(6)，所述片状压力传感器设置于凸起结构(2)和箍带(3)缝隙之间；所述预紧螺栓连接固定架(4)端部和箍带(3)端部；当油箱(1)有窜动趋势且片状压力传感器的压力值大于设定上边界值时，所述电动传动机构控制预紧螺栓转动，使得固定架(4)端部和箍带(3)端部相互靠近，绷紧所述箍带(3)。A plurality of automatic pre-tightening devices, each of which comprises a sheet-like pressure sensor, an electric transmission mechanism and a pre-tightening bolt (6), wherein the sheet-like pressure sensor is arranged between a protruding structure (2) and a gap between a band (3); the pre-tightening bolt connects an end of a fixing frame (4) and an end of a band (3); when the oil tank (1) has a tendency to move and the pressure value of the sheet-like pressure sensor is greater than a set upper boundary value, the electric transmission mechanism controls the pre-tightening bolt to rotate, so that the end of the fixing frame (4) and the end of the band (3) are close to each other, thereby tightening the band (3). 2.如权利要求1所述的一种商用车油箱的防窜动装置，其特征在于：所述预紧螺栓(6)具有无螺纹段和螺纹段；2. The anti-movement device for a commercial vehicle fuel tank according to claim 1, characterized in that: the pre-tightening bolt (6) has a non-threaded section and a threaded section; 所述无螺纹段匹配于箍带(3)端部，所述螺纹段匹配于固定架(4)的端部，且预紧螺栓(6)的伸出端与齿轮组中的其中一个齿轮同轴设置，齿轮旋转时螺纹段带动带动箍带(3)端部靠近固定架(4)的端部。The non-threaded section matches the end of the band (3), the threaded section matches the end of the fixing frame (4), and the protruding end of the pre-tightening bolt (6) is coaxially arranged with one of the gears in the gear set. When the gear rotates, the threaded section drives the end of the band (3) to approach the end of the fixing frame (4). 3.如权利要求2所述的一种商用车油箱的防窜动装置，其特征在于：所述电动传动机构包含电机、齿轮副和两个芯轴(8)；3. The anti-movement device for a commercial vehicle fuel tank as claimed in claim 2, characterized in that: the electric transmission mechanism comprises a motor, a gear pair and two spindles (8); 两个芯轴(8)分别固定于固定架(4)端部和箍带(3)端部；所述预紧螺栓(6)垂直贯穿两个芯轴(8)，且设置箍带(3)端部的芯轴(8)与所述无螺纹段匹配，设置固定架(4)端部的芯轴(8)与所述螺纹段匹配；Two mandrels (8) are respectively fixed to the ends of the fixing frame (4) and the ends of the band (3); the pre-tightening bolt (6) vertically penetrates the two mandrels (8), and the mandrel (8) at the end of the band (3) is matched with the non-threaded section, and the mandrel (8) at the end of the fixing frame (4) is matched with the threaded section; 所述电机设置于固定架的水平架的底部；所述齿轮副包含主动齿轮(7)和从动齿轮(5)，所述从动齿轮(5)同轴固定于所述预紧螺栓的伸出端；所述电机通过主动齿轮(7)和从动齿轮(5)带动预紧螺栓旋转。The motor is arranged at the bottom of the horizontal frame of the fixed frame; the gear pair comprises a driving gear (7) and a driven gear (5), and the driven gear (5) is coaxially fixed to the protruding end of the pre-tightening bolt; the motor drives the pre-tightening bolt to rotate through the driving gear (7) and the driven gear (5). 4.如权利要求1所述的一种商用车油箱的防窜动装置，其特征在于：所述防窜动装置还包含控制器，所述控制器用于获取车辆当前行驶状态的减速度、油量和坡度，并根据所述减速度、油量和坡度查表得到当前行驶状态的设定上边界值和设定下边界值；4. The anti-movement device for a commercial vehicle fuel tank as claimed in claim 1, characterized in that: the anti-movement device further comprises a controller, the controller is used to obtain the deceleration, fuel volume and slope of the vehicle's current driving state, and obtain the set upper boundary value and the set lower boundary value of the current driving state by looking up the table according to the deceleration, fuel volume and slope; 当片状压力传感器的压力值大于设定上边界值时，所述控制器开始通过电机、齿轮组和预紧螺栓绷紧所述箍带(3)，直至片状压力传感器的压力值等于设定下边界值，电机停止。When the pressure value of the sheet pressure sensor is greater than the set upper boundary value, the controller starts to tighten the band (3) through the motor, the gear set and the pre-tightening bolts until the pressure value of the sheet pressure sensor is equal to the set lower boundary value, and the motor stops. 5.如权利要求1所述的一种商用车油箱的防窜动装置，其特征在于：每个箍带(3)的两端中至少一端通过预紧螺栓(6)连接固定架(4)的端部；5. The anti-movement device for a commercial vehicle fuel tank as claimed in claim 1, characterized in that at least one of the two ends of each band (3) is connected to the end of the fixing frame (4) by a pre-tightening bolt (6); 所述限位支撑装置包含两个以上固定架(4)及同等数量的箍带(3)。The position-limiting support device comprises more than two fixing frames (4) and an equal number of hoops (3). 6.如权利要求1所述的一种商用车油箱的防窜动装置，其特征在于：6. The anti-movement device for a commercial vehicle fuel tank as claimed in claim 1, characterized in that: 所述凸起结构(2)设计时，根据油箱的最大容量、油液的密度、车辆的加速度最大绝对值及车辆最大安全斜度，计算得到刹车时凸起结构(2)需承受的力；再根据凸起结构(2)材质的撕裂强度，估算凸起结构(2)的设计总长。When designing the protruding structure (2), the force that the protruding structure (2) needs to withstand during braking is calculated based on the maximum capacity of the oil tank, the density of the oil, the maximum absolute value of the vehicle's acceleration, and the maximum safe inclination of the vehicle; and the total design length of the protruding structure (2) is estimated based on the tear strength of the material of the protruding structure (2). 7.一种商用车油箱的主动控制防窜动系统，其特征在于，包含：7. An active control anti-drifting system for a commercial vehicle fuel tank, characterized by comprising: 设置于仪表盘的窜动预警灯；A tampering warning light installed on the instrument panel; 设置于油箱内的油量传感器，用于获取当前行驶状态的油量数据；A fuel level sensor disposed in the fuel tank is used to obtain fuel level data of the current driving status; 设置于油箱外的斜度传感器，用于获取当前行驶状态的车辆所在坡度；A slope sensor disposed outside the fuel tank is used to obtain the slope of the vehicle in the current driving state; 加速度传感器，用于获取当前行驶状态的加速度的绝对值；An acceleration sensor, used to obtain the absolute value of the acceleration of the current driving state; 车载ECU，用于接收油量传感器、斜度传感器、加速度传感器及如权利要求1所述防窜动装置内的所有片状压力传感器的数据，并根据油量、斜度和加速度绝对值数据查表得到当前行驶状态的设定上边界值和设定下边界值；The vehicle-mounted ECU is used to receive data from the oil level sensor, the inclination sensor, the acceleration sensor and all the sheet pressure sensors in the anti-drifting device as claimed in claim 1, and obtain the set upper boundary value and the set lower boundary value of the current driving state by looking up the table according to the oil level, inclination and acceleration absolute value data; 当任一片状压力传感器的压力值大于设定上边界值时，所述车载ECU控制窜动预警灯闪烁，且车载ECU通过电机、齿轮组和预紧螺栓绷紧对应的所述箍带(3)，直至对应的片状压力传感器的压力值等于设定下边界值，电机停止，窜动预警灯停止闪烁。When the pressure value of any sheet-shaped pressure sensor is greater than the set upper boundary value, the on-board ECU controls the tampering warning light to flash, and the on-board ECU tightens the corresponding hoop (3) through the motor, gear set and pre-tightening bolts until the pressure value of the corresponding sheet-shaped pressure sensor is equal to the set lower boundary value, the motor stops, and the tampering warning light stops flashing. 8.如权利要求7所述的一种商用车油箱的主动控制防窜动系统，其特征在于：所述预紧螺栓(6)具有无螺纹段和螺纹段；所述无螺纹段匹配于箍带(3)端部，所述螺纹段匹配于固定架(4)的端部，且预紧螺栓(6)的伸出端与齿轮组中的其中一个齿轮同轴设置，齿轮旋转时螺纹段带动带动箍带(3)端部靠近固定架(4)的端部。8. An active control anti-movement system for a commercial vehicle fuel tank as described in claim 7, characterized in that: the pre-tightening bolt (6) has a non-threaded section and a threaded section; the non-threaded section matches the end of the band (3), the threaded section matches the end of the fixing frame (4), and the protruding end of the pre-tightening bolt (6) is coaxially arranged with one of the gears in the gear set, and when the gear rotates, the threaded section drives the end of the band (3) close to the end of the fixing frame (4). 9.如权利要求8所述的一种商用车油箱的主动控制防窜动系统，其特征在于：所述电动传动机构包含电机、齿轮副和两个芯轴(8)；两个芯轴(8)分别固定于固定架(4)端部和箍带(3)端部；所述预紧螺栓(6)垂直贯穿两个芯轴(8)，且设置箍带(3)端部的芯轴(8)与所述无螺纹段匹配，设置固定架(4)端部的芯轴(8)与所述螺纹段匹配；9. An active control anti-movement system for a commercial vehicle fuel tank as claimed in claim 8, characterized in that: the electric transmission mechanism comprises a motor, a gear pair and two mandrels (8); the two mandrels (8) are respectively fixed to the ends of the fixing frame (4) and the ends of the band (3); the pre-tightening bolt (6) vertically penetrates the two mandrels (8), and the mandrel (8) arranged at the end of the band (3) matches the non-threaded section, and the mandrel (8) arranged at the end of the fixing frame (4) matches the threaded section; 所述电机设置于固定架的水平架的底部；所述齿轮副包含主动齿轮(7)和从动齿轮(5)，所述从动齿轮(5)同轴固定于所述预紧螺栓的伸出端；所述电机通过主动齿轮(7)和从动齿轮(5)带动预紧螺栓旋转。The motor is arranged at the bottom of the horizontal frame of the fixed frame; the gear pair comprises a driving gear (7) and a driven gear (5), and the driven gear (5) is coaxially fixed to the protruding end of the pre-tightening bolt; the motor drives the pre-tightening bolt to rotate through the driving gear (7) and the driven gear (5). 10.如权利要求7所述的一种商用车油箱的主动控制防窜动系统，其特征在于：每个箍带(3)的两端中至少一端通过预紧螺栓(6)连接固定架(4)的端部；10. An active control anti-drifting system for a commercial vehicle fuel tank as claimed in claim 7, characterized in that: at least one of the two ends of each band (3) is connected to the end of the fixing frame (4) by a pre-tightening bolt (6); 所述限位支撑装置包含两个以上固定架(4)及同等数量的箍带(3)。The position-limiting support device comprises more than two fixing frames (4) and an equal number of hoops (3).
CN202411819770.9A 2024-12-11 2024-12-11 A commercial vehicle fuel tank anti-slip device and an active control anti-slip system Pending CN119428155A (en)

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Citations (6)

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Publication number Priority date Publication date Assignee Title
KR20070103929A (en) * 2006-04-20 2007-10-25 현대자동차주식회사 Vehicle fuel tank mounting structure
CN201415613Y (en) * 2009-06-10 2010-03-03 蚌埠通达汽车零部件有限公司 Automobile fuel tank having shock absorption effect
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CN210337570U (en) * 2019-07-31 2020-04-17 徐州徐工汽车制造有限公司 Oil tank strap locking mechanism
CN112719869A (en) * 2020-12-29 2021-04-30 山东华宇工学院 Full-automatic tightening device for heavy vehicle fuel tank strap
CN219055977U (en) * 2022-10-10 2023-05-23 山东睿硕滚塑有限公司 Fuel tank capable of preventing fastening belt from moving in series

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20070103929A (en) * 2006-04-20 2007-10-25 현대자동차주식회사 Vehicle fuel tank mounting structure
CN201415613Y (en) * 2009-06-10 2010-03-03 蚌埠通达汽车零部件有限公司 Automobile fuel tank having shock absorption effect
CN208714943U (en) * 2018-08-27 2019-04-09 信利光电股份有限公司 A kind of automotive oil tank
CN210337570U (en) * 2019-07-31 2020-04-17 徐州徐工汽车制造有限公司 Oil tank strap locking mechanism
CN112719869A (en) * 2020-12-29 2021-04-30 山东华宇工学院 Full-automatic tightening device for heavy vehicle fuel tank strap
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