CN203078600U - Torque-reducing connecting device for vehicle-mounted metal oil tank and chassis - Google Patents

Abstract

The utility model relates to an accessory for a vehicle-mounted metal oil tank, that is, a torsion-reducing connection device between a vehicle-mounted metal oil tank and a chassis, comprising two longitudinal beams and a crossbeam arranged on the longitudinal beams; wherein: the crossbeam includes a The cylindrical sleeve at the center position, two spherical sleeve shafts are installed symmetrically on both sides of the cylindrical sleeve, the shaft of each spherical sleeve shaft is installed in the cylindrical sleeve through bearings, and a double-headed spherical shaft is installed in the sleeve of the spherical sleeve shaft. One ball head of the double-headed spherical shaft is installed in the sleeve of the spherical sleeve shaft through a ball bearing, and the other ball head is installed in the spherical sleeve through another ball bearing, and the spherical sleeve is fixed on the longitudinal beam; Both the top of the spherical sleeve and the cylindrical sleeve have cylindrical pins connected with the metal oil tank, and the top of the cylindrical pins has a limiting disc movably connected with the cylindrical pins. Due to the structure, the utility model has the advantages of simple structure, low manufacturing cost and use cost, improved driving safety and reliability, and extended service life of the oil tank.

Description

Vehicle-mounted metal oil tank and chassis torsion reduction connection device

technical field

The utility model relates to accessories for vehicle-mounted metal oil tanks, in particular to a vehicle-mounted metal oil tank and chassis torque-reducing connection device with simple structure, low manufacturing cost and low use cost, improved driving safety and reliability, and extended service life of the oil tank.

Background technique

In the prior art vehicle-mounted metal oil tank, in order to ensure that the liquid level in the tank is relatively consistent during operation and that the oil tank does not generate torque, a torque reducing connection device is usually arranged between the oil tank and the chassis.

At present, the torque-reducing connection devices between the vehicle-mounted metal oil tank and the chassis at home and abroad are roughly divided into the following types:

(1), ordinary sub-frame type

Ordinary sub-frame type torsion-reducing connection device is to add a sub-frame between the metal oil tank and the chassis, the bottom of the metal oil tank and the beam of the sub-frame are connected together by bolts or welding, and the longitudinal beam It is usually elastically connected to the frame by "U" bolts. This form actually strengthens the bottom of the metal oil tank through the subframe, allowing the subframe to share part of the torque. This connection structure is relatively simple, and can also obtain a lower overall vehicle height, so it is widely used. However, during the driving process of the vehicle, since the special equipment also has to bear the torsional moment, its working conditions are deteriorated. Therefore, various strengthening measures still need to be adopted. The common method at present is to add a compound limit device, that is, to use multiple elastic limit devices between the sub-frame and the vehicle frame to reinforce it. But no matter how the compound limit device is added, there is still a torsional moment in the metal oil tank during the running of the vehicle, which reduces the driving safety and reliability.                   

(2), multi-point elastic support type

The multi-point elastic support type torsion-reducing connection device adopts the connection position reserved by the original chassis, and fixes the bottom plate of the metal oil tank on the frame through multiple connection points. For reinforcement. Compared with other methods, this connection method is the simplest, and its connection is subjected to the worst working conditions, but it can obtain a lower cabin height and lower vehicle curb weight, so it can effectively reduce the height of the vehicle's center of gravity and the overall weight of the vehicle. car bias. If only multi-point elastic connections are used, the oil tank can maintain better dynamic performance when the tanker is subjected to vertical acceleration. However, when the tanker produces lateral acceleration (turning or off-road driving conditions) and longitudinal acceleration (acceleration or braking conditions), its lateral stability and longitudinal stability will deteriorate, and large lateral and longitudinal shear force. Among them, the lateral acceleration is the main factor affecting the stability of the carriage, so its lateral deformation needs to be restrained. The usual method is to use a beam at the front end of the bottom of the carriage to connect the bottom elastically. This connection method is suitable for oil tank trucks with a small tonnage, and is currently used in light tank trucks. However, it cannot be used in large oil tank trucks, and its application range is limited.

(3), pipe beam fixed

The fixed torsion-reducing connection device of the pipe beam is a connection method with innovative thinking. It is designed based on the idea that the round pipe can carry the torque most effectively. The connection assembly is composed of a pipe beam and a bracket. The carriage with fixed pipe beams can avoid the direct effect of external torsional moment on the vehicle-mounted metal oil tank during the running of the vehicle, which improves the working conditions and reliability of the vehicle-mounted metal oil tank. Reducing the self-weight of on-board metal oil tanks has created conditions, and thus has been widely used in some medium and heavy-duty oil tank vehicles, but the height of the bottom plate of the oil tank is higher than that of the ordinary sub-frame fixed type, which will have a certain impact on the height of the vehicle . The center of gravity of the whole vehicle is improved, and the driving safety and reliability are reduced.

(4) Composite fixed type of pipe beam and elastic support

The tube beam and elastic support composite fixed torsion-reducing connection device effectively combines the tube beam and sub-frame, thus combining the advantages of the above two fixing methods (2) and (3), it can effectively reduce oil The torsional moment of the tank keeps the height of the bottom of the tank from the ground too high. At the same time, a plate-type car structure can be used to reduce the structural weight of the tank, but the structure is relatively complicated, and the manufacturing and use costs are high.

(5), 4-point KINE-FIX dynamic connection type

World-renowned off-road trucks such as ARMADILLO of MAN, Unimog of Mercedes-Benz, and Australian photographers all use a flexible connection mechanism called "4-point KINE-FIX dynamic connection mechanism coupling". The elasticity of the rubber produces two degrees of freedom in the horizontal direction. When the chassis is tilted in a small range, the oil tank can still maintain a certain level, and the oil tank will not generate torque, which ensures that the oil tank is not affected by the deformation of the frame. The disadvantage of this connection mechanism is that the center of gravity of the whole vehicle is high and the lateral stability is weak. Reduced driving safety and reliability.

(6), fully assembled and disassembled

The torque-reducing connection device of the whole installation and disassembly method is another docking method that can realize the separation of the vehicle-mounted metal oil tank and the chassis. This method is adopted by a variety of logistics equipment. Its advantage is that the vehicle-mounted metal oil tank and the chassis can be separated, which can make full use of the capacity of the chassis. The chassis can be used for each other and can be used flexibly. The conversion of various modes of transportation such as air transportation. The disadvantages are that the vehicle-mounted metal oil tank tray has a large mass, the vehicle's effective load capacity is low, and the weight utilization factor is low. In addition, its center of gravity is also high, and the vehicle's lateral stability is weak. Reduced driving safety and reliability and reduced transport capacity. the

To sum up, the prior art torque reducing connection device has complex structure, relatively high manufacturing cost and use cost, low driving safety and reliability, and short service life of the oil tank.

Contents of the invention

The purpose of the utility model is to provide a vehicle-mounted metal oil tank and chassis torque-reducing connection device with simple structure, low manufacturing cost and use cost, improved driving safety and reliability, and extended oil tank service life.

The technical solution adopted to achieve the above-mentioned purpose of the utility model is: a vehicle-mounted metal oil tank and a chassis torque-reducing connection device, including two longitudinal beams, a crossbeam arranged on the two longitudinal beams, and the longitudinal beam and the crossbeam are integrated to form a metal The subframe where the oil tank is connected to the chassis; where:

There are three beams, which are evenly distributed on the two longitudinal beams to form a front beam, a middle beam and a rear beam; the three beams respectively have cylindrical sleeves located at the center between the two longitudinal beams, and the two spherical sleeves are axially symmetrical Installed on both sides of the cylindrical sleeve, the shaft of each spherical sleeve shaft is installed in the cylindrical sleeve through a bearing, and a double-headed spherical shaft is installed in the sleeve of the spherical sleeve shaft, and a ball head of the double-headed spherical shaft passes through the ball head The bearing is installed in the sleeve of the spherical sleeve shaft, and the other ball head is installed in the spherical sleeve through another ball bearing, and the spherical sleeve is fixed on the longitudinal beam; when the vehicle is running, when the chassis beam is twisted, the two The longitudinal beams are twisted and twisted under the action of the cross beams to ensure the level of the metal oil tank;

Both the top of the spherical sleeve and the cylindrical sleeve have a cylindrical pin connected with the metal oil tank, and the top of the cylindrical pin has a limit disc that is movably connected with the cylindrical pin. All the cylindrical pins are distributed on the subframe, so that the subframe Nine connection points are formed with the metal oil tank; among them, springs are set on the three cylindrical pins of the middle beam, the cylindrical pins of the front beam sleeve and the cylindrical pins of the rear beam sleeve, so that the metal oil tank Elastic and dynamic connection points are formed at the five connection points, and the five elastic and dynamic connection points are used to relieve the shock force transmitted to the metal oil tank and the sub-frame when it is twisted to relieve the torque transmitted from the chassis; the two front beams The cylindrical pins at the top of the spherical sleeve at the end and the cylindrical pins at the top of the spherical sleeve at both ends of the rear beam form another four connection points, so that the metal oil tank forms dynamic connection points at these four connection points, and the four dynamic connection points are used to Metal tanks are positioned longitudinally and laterally.

Due to the above structure, the device described in the utility model is a modular unit that can be directly installed on the chassis of the car, forming a flexible connection between the girder and the bodywork (that is, the metal oil tank), which overcomes the disadvantages of the traditional rigid connection structure and increases The service life of the car under difficult road conditions, improving driving reliability and safety, and enabling efficient and reliable connection of special equipment (ie metal oil tanks) to the chassis. The device has a simple structure and low manufacturing and use costs.

Description of drawings

The utility model can be further illustrated by the non-limitative embodiments given by the accompanying drawings.

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the beam of the utility model.

Fig. 3 is an exploded view of the beam of the utility model.

Fig. 4 is a schematic diagram of the structure of the utility model after it is connected with the metal oil tank.

In the figure: 1. Longitudinal beam; 2. Beam; 3. Cylindrical sleeve; 4. Spherical sleeve shaft; 5. Shaft; 6. Sleeve; 7. Double-ended spherical shaft; 8. Spherical sleeve; 10, spring; 11, limit disc.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is further described:

Referring to accompanying drawings 1 to 4, a vehicle-mounted metal oil tank and chassis torsion reduction connection device includes two longitudinal beams 1 and a crossbeam 2 arranged on the two longitudinal beams 1, and the longitudinal beam 1 and the crossbeam 2 are integrally formed into a metal oil tank A subframe connected to the chassis; of which:

There are three beams 2, which are evenly distributed on the two longitudinal beams 1 to form a front beam, a middle beam and a rear beam; Two spherical sleeve shafts 4 are symmetrically installed on both sides of the cylindrical sleeve 3, the shaft 5 of each spherical sleeve shaft 4 is installed in the cylindrical sleeve 3 through a bearing, and a double-headed spherical shaft 7 is installed in the sleeve 6 of the spherical sleeve shaft 4. One ball head of the double-headed spherical shaft 7 is installed in the sleeve 6 of the spherical sleeve shaft 4 through a ball bearing, and the other ball head is installed in the spherical sleeve 8 through another ball bearing, and the spherical sleeve 8 is fixed on the longitudinal On the beam 1; during the operation of the car, when the chassis girder is twisted, the two longitudinal beams 1 will be twisted and stretched by the beam 2 to produce a corresponding twist to ensure that the metal oil tank remains horizontal;

Both the spherical cover 8 and the top of the cylindrical cover 3 have a cylindrical pin 9 connected to the metal oil tank, and the top of the cylindrical pin 9 has a limit disc 11 that is movably connected with the cylindrical pin 9, and all the cylindrical pins 9 are distributed on the auxiliary vehicle. On the frame, nine connection points are formed between the subframe and the metal oil tank; among them, three cylindrical pins 9 on the middle beam, cylindrical pins 9 on the cylindrical sleeve 3 of the front beam, and cylinders on the cylindrical sleeve 3 of the rear beam Springs 10 are set on the pins 9, so that the metal oil tank forms elastic and dynamic connection points at the five connection points, and the five elastic and dynamic connection points are used to relieve the impact force transmitted to the metal oil tank and the subframe when shaking Relieve the torque transmitted by the chassis when twisting; the cylindrical pin 9 on the top of the spherical sleeve 8 at both ends of the front beam and the cylindrical pin 9 on the top of the spherical sleeve 8 at both ends of the rear beam form another four connection points, so that the metal oil tank is in the four Dynamic connection points are formed at the connection points, and the four dynamic connection points are used to position the metal oil tank longitudinally and laterally.

In order to reduce the manufacturing cost, in the above embodiment, preferably: the longitudinal beam 1 is a channel steel.

In order to ensure that the metal oil tank remains level on uneven off-road roads, in the above embodiment, preferably: the upper end of the limiting disc 11 is fixed on the bottom of the metal oil tank, and the lower end is inserted into the slot on the top of the straight pin 9, When the metal oil tank jumps, the limit disc 11 breaks away from the cylindrical pin 9, so that the metal oil tank has a certain stroke in the vertical direction, and the two longitudinal beams 1 are twisted accordingly to ensure that the metal oil tank remains horizontal.

The crossbeam 2 with the above structure can better realize the torsional movement during the driving process without affecting the vertical and horizontal positioning, and at the same time, when the subframe twists, it can also compensate for the increased length of the crossbeam. The beam 2 can be twisted very well. Based on the structure of the spherical sleeve shaft 4, it can be twisted well. The double-headed spherical shaft 7 and the spherical sleeve shaft 4 are used as part of the structure of the beam 2, which can well realize the torsional movement without affecting The positioning of its longitudinal beams. When the subframe twists, it must be able to compensate for the gap between the beam 2 (that is, the beam 2 needs to grow). In this place, a ball bearing and a spherical sleeve shaft 4 are used to form a group of kinematic pairs similar to joint bearings, which can be extended and shorten to compensate for the distance generated when the beam 2 is twisted. Three beams 2 are used to connect with two longitudinal beams 1, and the spherical sleeves 8 on both sides are welded on the longitudinal beams 1 of the sub-frame to form a positioning. When the sub-frame twists, a ball head of the double-headed spherical shaft 7 The spherical sleeve 8 rotates inside, and the other ball head and the intermediate spherical sleeve shaft 4 form a group of kinematic pairs to generate torsion and expansion. There are nine points on the three beams connecting the metal oil tank (that is, the upper body), and five points are elastic dynamic connections (three points in the middle beam and the middle point of the front and rear beams), which can reduce the impact force transmitted to the body when shaking (ie Metal oil tank), and it can also relieve the torque transmitted from the chassis when the subframe is twisted.

The above-mentioned device can form a flexible connection between the chassis girder of the automobile and the metal oil tank. When the chassis girder of the automobile is distorted and deformed, the metal oil tank on the vehicle will not be distorted and deformed, and can basically maintain a level, reducing the sloshing of the oil and the deviation of the center of gravity of the oil. It overcomes the disadvantages of the traditional rigid connection structure, increases the service life of the tank truck under off-road conditions, improves the reliability and safety of the tank truck, and realizes the efficient and reliable connection between the vehicle-mounted metal tank and the chassis.

The above structure is not limited to the connection between the chassis of the car and the metal oil tank, but also can be used for the connection between the chassis of the car and other similar tops, so as to ensure the safety and stability of driving.

Apparently, all the embodiments described above are some embodiments of the present utility model, but not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

To sum up, the device has simple structure, low manufacturing cost and use cost, improves driving safety and reliability, and prolongs the service life of the oil tank. the

Claims (3)

1. A vehicle-mounted metal oil tank and chassis torsion reduction connection device, including two longitudinal beams (1), a crossbeam (2) arranged on the two longitudinal beams (1), the longitudinal beam (1) and the crossbeam (2) An integrally formed sub-frame connecting the metal oil tank and the chassis; it is characterized in that: There are three beams (2), which are evenly distributed on the two longitudinal beams (1), forming a front beam, a middle beam and a rear beam; the three beams (2) respectively have The cylindrical sleeve (3) at the position, the two spherical sleeve shafts (4) are symmetrically installed on both sides of the cylindrical sleeve (3), and the shaft (5) of each spherical sleeve shaft (4) is installed on the cylindrical sleeve (3) through bearings Inside, a double-headed spherical shaft (7) is installed in the sleeve (6) of the spherical sleeve shaft (4), and a ball head of the double-headed spherical shaft (7) is installed on the spherical sleeve shaft (4) through a ball bearing. ), the other ball head is installed in the spherical sleeve (8) through another ball bearing, and the spherical sleeve (8) is fixed on the longitudinal beam (1); when the vehicle is running, when the chassis When the girder is distorted, the two longitudinal girders (1) will be distorted under the twisting and stretching of the crossbeam (2) to ensure that the metal oil tank remains horizontal; Both the top of the spherical sleeve (8) and the cylindrical sleeve (3) have a cylindrical pin (9) connected to the metal oil tank, and the top of the cylindrical pin (9) has a limit disc ( 11), all the cylindrical pins (9) are distributed on the subframe, so that nine connection points are formed between the subframe and the metal oil tank; among them, the three cylindrical pins (9) of the middle crossbeam, the cylindrical sleeve of the front crossbeam The cylindrical pin (9) on (3) and the cylindrical pin (9) on the rear beam (3) are both covered with springs (10), so that the metal oil tank forms an elastic dynamic connection at the five connection points point, use the five elastic dynamic connection points to relieve the shock force transmitted to the metal oil tank and the sub-frame when it is twisted, and relieve the torque transmitted from the chassis; the spherical sleeves (8) at the two ends of the front cross member The cylindrical pin on the top ( 9) and the cylindrical pins (9) on the top of the spherical sleeves (8) at both ends of the rear cross beam form another four connection points, so that the metal oil tank forms dynamic connection points at these four connection points, and use these four dynamic connection points to For longitudinal and lateral positioning of metal oil tanks. 2. The torsion-reducing connection device between the vehicle-mounted metal oil tank and the chassis according to claim 1, characterized in that: the longitudinal beam (1) is a channel steel. 3. The torsion-reducing connection device between the vehicle-mounted metal oil tank and the chassis according to claim 1, characterized in that: the upper end of the limit disc (11) is fixed on the bottom of the metal oil tank, and the lower end is snapped into the cylindrical pin (9) In the card slot on the top, when the metal oil tank jumps, the limit disc (11) is separated from the cylindrical pin (9), so that the metal oil tank has a certain stroke in the vertical direction, and the two longitudinal beams (1) are twisted accordingly to ensure Metal oil tanks are kept level.

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