Full-hanging tank type normal-pressure liquid transport vehicle

Abstract

The utility model discloses a full-trailer tank type normal-pressure liquid transport vehicle in the technical field of transport vehicles. The full-trailer tank type normal-pressure liquid transport vehicle comprises a front rotary frame, the traction tripod is mounted at the front end of the front rotary frame; the three-ball turntable is mounted at the top of the front rotary frame; the bottom of the front end of the upper auxiliary frame is connected with the three-ball turntable; the tank body is mounted at the top of the upper auxiliary frame; the top of the rear bearing frame is connected with the bottom of the rear end of the upper auxiliary frame; the load buffering base plate is arranged between the upper auxiliary frame and the tank body; according to the semi-trailer tank truck, the tank body and the full trailer are complementary in structural advantages, so that the defects that the semi-trailer tank truck is inflexible in turning, inconvenient to unload and high in production cost are effectively overcome, and the use requirements in a farm type operation environment are met.

Description

Technical Field

[0001] The utility model relates to the technical field of transport vehicles, in particular to a full-hung tank type normal pressure liquid transport vehicle. Background Art

[0002] At present, the main application areas of full trailers are concentrated in flatbed trucks, cage trucks or agricultural trailers, and their degree of automation is not high; the mainstream model of normal pressure liquid transport vehicles is tank semi-trailer, and its transportation is not flexible; and with the development of the national economy, centralized farm operations have gradually become the mainstream, and it has become an obvious trend in provinces such as Heilongjiang and Xinjiang, and large-scale farms have emerged.

[0003] Farm-type operating environments require tankers, pesticide transporters and other normal-pressure liquid transport vehicles that can be flexibly transported; however, the current semi-trailer normal-pressure liquid transport vehicles have the following defects due to their structural limitations:

[0004] 1. It needs to be matched with a traction head with a certain load-bearing capacity, and the cost of the traction head is relatively high;

[0005] 2. The semi-trailer has a large wheelbase, a long body, a large turning radius, and is not flexible, making it unsuitable for farm operations;

[0006] 3. The semi-trailer main trailer needs to be detached with a separate support leg for support, which is inconvenient. Utility Model Content

[0007] The utility model aims to provide a full-hook tank type normal pressure liquid transport vehicle, which solves the technical problems of high production cost, inflexible turning and inconvenient detachment of normal pressure liquid transport vehicles in the prior art.

[0008] The utility model discloses a full-mounted tank-type normal-pressure liquid transport vehicle, comprising:

[0009] Front swivel frame;

[0010] A traction tripod, mounted on the front end of the front slewing frame;

[0011] A three-ball turntable is mounted on the top of the front rotating frame;

[0012] The upper sub-frame has a front end bottom connected to the three-ball turntable;

[0013] A tank body is mounted on the top of the upper subframe;

[0014] A rear load-bearing frame, the top of which is connected to the rear end bottom of the upper sub-frame;

[0015] A load buffer plate is arranged between the upper sub-frame and the tank body.

[0016] This application complements the structural advantages of the tank body and the full trailer, thereby effectively solving the defects of the semi-trailer liquid tank truck, such as the inflexible turning, inconvenient detachment and high production cost, and meets the use requirements in a farm-type working environment.

[0017] On the basis of the above technical solution, the solution of this application can also be improved as follows:

[0018] Preferably, the tank body comprises:

[0019] The cylinder is arranged horizontally, the top of the cylinder is provided with a tank opening, and the bottom of the rear end of the cylinder is provided with a discharge port;

[0020] Two heads are respectively installed at two ends of the cylinder;

[0021] A plurality of wave-breaking plates are installed in the cylinder at intervals in a transverse direction;

[0022] The pneumatic tank cover is installed on the top of the cylinder and is matched with the tank mouth. By adopting this solution, the stability and safety of the tank body during transportation are improved by setting up a wave-breaking plate, and the pneumatic tank cover can be easily operated, thereby saving manpower and time.

[0023] Preferably, the pneumatic tank cover comprises:

[0024] A can cover, matched with the can mouth;

[0025] A support, mounted on the outer side of the tank mouth;

[0026] A support plate, one end of which is connected to the top of the tank cover and the other end of which is hinged to the support;

[0027] The cylinder has one end hinged to the support plate and the other end hinged to the cylinder body; by adopting this solution, the tank mouth can be opened and closed smoothly and stably, and its structure is simple and stable, convenient for production, assembly and long-term use, and has stable operation, convenient operation and good use effect.

[0028] Preferably, it also includes a pneumatic control mechanism, including:

[0029] Gas reservoir 2;

[0030] Five-port two-position solenoid valve, including

[0031] Air port A is connected to the rodless chamber of the cylinder.

[0032] Air port B is connected to the rod chamber of the cylinder.

[0033] Air port S is connected to the outside world.

[0034] The gas port P is connected to the second phase of the gas storage cylinder.

[0035] Air port R, connected to the outside world;

[0036] Among them, when the five-port two-position solenoid valve is located at the power-on position, the gas port A is connected with the gas port P, and the gas port B is connected with the gas port S; when the five-port two-position solenoid valve is located at the power-off position, the gas port A is connected with the gas port R, and the gas port B is connected with the gas port P; by adopting this solution, the ventilation and exhaust states of the cylinder can be changed by switching two positions of the five-port two-position solenoid valve, thereby realizing remote control of the tank port opening and closing.

[0037] Preferably, it also includes a loading and unloading mechanism, which is installed on the rear load-bearing frame and includes:

[0038] A pneumatic bottom valve installed on the discharge port;

[0039] A three-way pipe, a first port of which is connected to the pneumatic bottom valve box;

[0040] An API valve connected to the second port of the three-way pipe;

[0041] a pneumatic ball valve, the inlet of which is connected to the third port of the three-way pipe;

[0042] a first filter, the inlet of which is connected to the outlet of the pneumatic ball valve;

[0043] The flow meter has an inlet connected to the outlet of the first filter; by adopting this solution, lower loading and unloading can be achieved, which saves time and effort, improves operating efficiency, enhances use effect, and is convenient for actual production use.

[0044] Preferably, the pneumatic control mechanism further comprises:

[0045] Three-port two-position solenoid valve, including

[0046] The gas port M is connected to the second gas storage cylinder.

[0047] Gas port N is connected to the outside world.

[0048] The air port L is connected to the pneumatic bottom valve.

[0049] Wherein, when the three-port two-position solenoid valve is in the power-on position, the gas port M is connected to the gas port L; when the three-port two-position solenoid valve is in the power-off position, the gas port N is connected to the gas port L;

[0050] Three-port two-position solenoid valve 2, including

[0051] The gas port X is connected to the second phase of the gas storage cylinder.

[0052] Air port Y is connected to the outside world.

[0053] Air port Z is connected to the pneumatic ball valve.

[0054] Among them, when the second of the three-port two-position solenoid valve is in the power-on position, the air port X is connected to the air port Z; when the second of the three-port two-position solenoid valve is in the power-off position, the air port Y is connected to the air port Z. By adopting this solution, the remote control of the loading and unloading mechanism can be conveniently completed. It is easy to operate and has high operating efficiency, which improves the use effect and is convenient for actual production use.

[0055] Preferably, the pneumatic control mechanism further comprises:

[0056] The oil-water separator has an inlet connected to the second phase of the air storage cylinder, and an outlet connected to the air port P, the air port M and the air port X. By adopting this solution, the water vapor in the air path can be filtered, and oil mist can be added to the air path to lubricate the valves in the air path process, which increases the service life of the pneumatic equipment, reduces failures and reduces maintenance costs.

[0057] Preferably, it also includes: a power switch, including

[0058] A first button is electrically connected to the three-port two-position solenoid valve;

[0059] A second button is electrically connected to the three-port two-position solenoid valve;

[0060] The third button is electrically connected to the five-port two-position solenoid valve; by adopting this solution, the operating switch can be integrated, thereby improving the portability and efficiency of the operation and facilitating use in actual working conditions.

[0061] Preferably, the pneumatic control mechanism further comprises:

[0062] Gas supply mechanism;

[0063] Gas reservoir 1, connected to gas reservoir 2;

[0064] A plurality of brake air chambers, the rear chamber of which is in communication with the air reservoir;

[0065] Emergency relay valve, including

[0066] The air inlet H is connected to the air supply mechanism.

[0067] The gas outlet I is connected to the gas storage cylinder.

[0068] Control import J,

[0069] A plurality of control outlets K are connected to the control inlet J and are connected to the front chamber of the brake air chamber in a one-to-one correspondence;

[0070] Solenoid proportional valve, including

[0071] The air port E is connected to the air storage cylinder.

[0072] Air port F is connected to the outside world.

[0073] The air port G is connected to the control inlet J of the emergency relay valve.

[0074] Among them, when the electromagnetic proportional valve is in the power-on position, the air port E is connected with the air port G; when the three-port two-position electromagnetic valve is in the power-off position, the air port F is connected with the air port G; by adopting this scheme, a 4-20ma analog signal can be provided to the electromagnetic proportional valve to provide different braking pressures, thereby realizing remote braking control and getting rid of the constraints of the brake pedal.

[0075] Preferably, the air supply mechanism comprises:

[0076] Quick connector;

[0077] a second filter, the inlet of which is connected to the outlet of the quick connector;

[0078] The one-way valve has an inlet connected to the outlet of the second filter, and an outlet connected to the air inlet H. By adopting this solution, the air compressor on the tractor can be used to supply air to the entire pneumatic control mechanism, which reduces costs, provides stable and clean air supply, and has good use effect.

[0079] Through the above technical solution, the utility model achieves the following beneficial effects:

[0080] 1. This application complements the structural advantages of the tank body and the full trailer, thereby effectively solving the defects of the semi-trailer liquid tank truck, such as inflexible turning, inconvenient unhook and high production cost, and is convenient for use in a farm-type operating environment;

[0081] 2. The present application improves the stability and safety of the tank during transportation by providing a wave-breaking plate, and provides a pneumatic tank cover for convenient operation, which can smoothly and stably open and close the tank mouth. The structure is simple and stable, which is convenient for production, assembly and long-term use, and has stable operation and convenient operation, thereby saving manpower and time;

[0082] 3. The present application controls the on-off of the gas circuit through a five-port two-position solenoid valve, thereby realizing the opening and closing of the pneumatic tank cover on the ground or remotely controlled, and controls the pneumatic bottom valve and the pneumatic ball valve through a three-port two-position solenoid valve 1 and a three-port two-position solenoid valve 2, so that the loading and unloading mechanism can be remotely controlled to complete the lower loading and unloading, which saves time and effort, is easy to operate and portable, has high operating efficiency, improves the use effect, and is convenient for actual production use;

[0083] 4. This application provides a 4-20ma analog signal to the electromagnetic proportional valve, thereby providing different brake pressures, thereby realizing remote brake control and getting rid of the constraints of the brake pedal. BRIEF DESCRIPTION OF THE DRAWINGS

[0084] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0085] Figure 1 It is a side view of a full-hung tank type normal pressure liquid transport vehicle according to a specific embodiment of the utility model;

[0086] Figure 2 for Figure 1 The structural schematic diagram of the tank body in the fully-mounted tank-type normal pressure liquid transport vehicle shown;

[0087] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0088] Figure 4 for Figure 1 The structural schematic diagram of the loading and unloading mechanism in the fully-mounted tank-type normal pressure liquid transport vehicle shown;

[0089] Figure 5 This is a control principle diagram of the pneumatic control mechanism described in a specific embodiment of the utility model;

[0090] Figure 6 This is a control principle diagram of the pneumatic control mechanism described in a specific embodiment of the utility model;

[0091] Figure 7 This is the corresponding relationship diagram between the brake pressure and analog input of the electromagnetic proportional valve;

[0092] Description of reference numerals:

[0093] 1. Front slewing frame; 2. Traction tripod; 3. Three-ball turntable; 4. Upper subframe; 5. Tank body; 51. Cylinder body; 511. Tank mouth; 512. Discharge port; 52. End cap; 53. Wave-breaking plate; 54. Pneumatic tank cover; 541. Tank cover; 542. Support; 543. Support plate; 544. Cylinder; 6. Rear bearing frame; 7. Pneumatic control mechanism; 71. Gas cylinder 2; 72. Five-port two-position solenoid valve; 73. Three-port two-position solenoid valve 1; 74. Three-port two-position solenoid valve 2; 75. Oil-water separator; 76, air supply mechanism; 761, quick connector; 762, second filter; 763, one-way valve; 77, air reservoir 1; 78, brake air chamber; 79, emergency relay valve; 7A, electromagnetic proportional valve; 8, loading and unloading mechanism; 81, pneumatic bottom valve; 82, three-way pipe; 83, API valve; 84, pneumatic ball valve; 85, first filter; 86, flow meter; 9, power switch; 91, first button; 92, second button; 93, third button; 10, load buffer pad. DETAILED DESCRIPTION

[0094] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0095] First of all, it should be noted that in the following description, some directional words involved in order to clearly illustrate the technical solution of the utility model, such as "front end", "rear end", etc., are all meanings that are inferred from the normal directions of the parts in the full-mounted tank-type atmospheric liquid transport vehicle. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as a limitation on the utility model.

[0096] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the said features.

[0097] In this application, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0098] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0099] Example:

[0100] like Figure 1 As shown, an embodiment of the present application discloses a fully-mounted tank-type normal-pressure liquid transport vehicle, which is used for transporting normal-pressure liquids such as pesticides and oils in a farm-type working environment. The structure includes: a front revolving frame 1, a traction tripod 2, a three-ball turntable 3, an upper subframe 4, a tank body 5 and a rear load-bearing frame 6.

[0101] The front slewing frame 1 can flexibly rotate in the horizontal direction relative to the upper part, and when the transport vehicle is detached from the tractor, the front slewing frame 1 still plays a front support role, so there is no need to add a separate outrigger device, and the existing design can be used, and the specific structure will not be repeated.

[0102] The traction tripod 2 is installed at the front end of the front revolving frame 1 and is connected by a pin shaft so that it can be flexibly swung up and down and is used for hook connection with the tractor. The connection is highly stable and the existing design can be adopted. The specific structure will not be repeated here.

[0103] The three-ball turntable 3 is installed on the top of the front rotating frame 1, and is used to realize the rotation connection between the front rotating frame 1 and the upper sub-frame 4. The connection is stable and the rotation is flexible. It can tow the upper sub-frame 4, the tank body 5 and the rear load-bearing frame 6 to follow the driving or turning. Driving or turning in the farm is more flexible and convenient. The existing design can be adopted, and the specific structure will not be repeated.

[0104] The front bottom of the upper sub-frame 4 is connected to the three-ball turntable 3 to carry the tank 5 and play a supporting and connecting role. The existing design can be adopted and the specific structure will not be repeated.

[0105] The tank body 5 is mounted on the top of the upper subframe 4; specifically, the tank body 5 is welded to the longitudinal and transverse beams of the upper subframe 4, and a load buffer pad 10 is added between the tank body 5 and the longitudinal and transverse beams to reduce the impact on the tank body 5 during driving and improve safety.

[0106] The top of the rear load-bearing frame 6 is connected to the rear end bottom of the upper sub-frame 4; specifically, the rear load-bearing frame 6 and the upper sub-frame 4 are assembled and connected by two rows of bolts, and the bottom of the rear load-bearing frame 6 is welded to the suspension bracket, so as to transfer the bearing force to the bottom axle and tire and other walking mechanisms, thereby achieving stable support.

[0107] The utility model complements the structural advantages of the tank body 5 and the full trailer, thereby effectively solving the defects of the semi-trailer liquid tank truck, such as inflexible turning, inconvenient detachment and high production cost, and meets the use requirements in a farm-type working environment.

[0108] In some embodiments, Figure 2 As shown, in order to improve the transportation effect, the tank body 5 is structurally designed, and the tank body 5 includes: a cylinder 51, two heads 52, a plurality of wave-breaking plates 53 and a pneumatic tank cover 54.

[0109] The cylinder 51 is arranged horizontally, a tank opening 511 is arranged at the top of the cylinder 51, and a discharge port 512 is arranged at the bottom of the rear end of the cylinder 51; the cross section of the cylinder 51 is circular, and can be made of 304 stainless steel, so as to transport a variety of chemical or oil media and avoid corrosion.

[0110] The two sealing heads 52 are respectively installed at the two ends of the cylinder 51 by welding, and are in an arc-shaped structure, and are used to seal the container.

[0111] A plurality of wave-breaking plates 53 are installed in the cylinder 51 at laterally intervals, in a disc-shaped structure, and are welded with cleaning rings on the back, preferably three, but not limited to; they are used to divide the liquid space in the cylinder 51, hinder the free fluctuation of the liquid, thereby reducing the impact and vibration of the liquid, making the liquid more stable and calm in the tank body 5; they can also alleviate or destroy wave resonance, reduce the vibration risk of the tank body 5 structure, and thus increase the stability and safety of the tank body 5.

[0112] The pneumatic tank cover 54 is installed on the top of the cylinder 51 and is adapted to the tank opening 511 , so that the tank opening 511 can be opened or closed by ground or remote control, which is convenient to operate, saves manpower and time, and improves safety.

[0113] The above technical solution improves the stability and safety of the tank body 5 during transportation by providing the wave-breaking plate 53, and provides the pneumatic tank cover 54 for convenient operation, thereby saving manpower and time.

[0114] For example, Figure 3 As shown, the pneumatic tank cover 54 includes:

[0115] The can cover 541 matches the can mouth 511, and a limit ring groove is provided on the outer periphery of the bottom, and a seat ring is installed in the limit ring groove, thereby significantly improving the sealing effect after the cover is closed;

[0116] A support 542 is installed on the outside of the tank mouth 511 and is used to support the support plate 543;

[0117] The support plate 543 has one end connected to the top of the tank cover 541 and the other end hinged to the support 542, forming a V-shaped structure, arranged vertically, and hinged to the support 542 through a rotating pin;

[0118] The cylinder 544 has one end hinged to the support plate 543 and the other end hinged to the cylinder body 51 ; a corresponding connecting seat is installed on the cylinder body 51 for hinged connection with the cylinder 544 .

[0119] When opening the tank mouth 511, the cylinder 544 pulls the support plate 543, and the support plate 543 rotates around the hinge point connected to the support 542, thereby driving the tank cover 541 to separate from the tank mouth 511, so that the two are no longer covered, and the tank mouth 511 is opened.

[0120] Through the above arrangement, the tank mouth 511 can be opened and closed smoothly and stably. The structure is simple and stable, easy to produce, assemble and use for a long time, and has stable operation, convenient operation and good use effect.

[0121] In some embodiments, Figure 5 As shown, in order to facilitate remote control, a pneumatic control mechanism 7 is included, including: an air storage cylinder 71 and a five-port two-position solenoid valve 72.

[0122] Specifically, the five-port two-position solenoid valve 72 includes

[0123] Air port A is connected to the rodless chamber of cylinder 544.

[0124] Air port B is connected to the rod chamber of the air cylinder 544.

[0125] Air port S is connected to the outside world.

[0126] The air port P is connected to the air reservoir 71.

[0127] Air port R, connected to the outside world;

[0128] Among them, when the five-port two-position solenoid valve 72 is in the power-on position, port A is connected to port P, and port B is connected to port S; when the five-port two-position solenoid valve 72 is in the power-off position, port A is connected to port R, and port B is connected to port P.

[0129] By switching the two positions of the five-port two-position solenoid valve 72, the ventilation and exhaust states of the cylinder 544 are changed, thereby realizing the remote control of the opening and closing of the tank port 511. The specific operation is as follows:

[0130] Under normal conditions, the five-port two-position solenoid valve 72 is in the power-off position, and the gas enters the valve body from the gas reservoir 71 through the gas port P, and then enters the rodless cavity of the cylinder 544 through the gas port A, thereby pushing the cylinder rod forward, and the gas in the rod cavity of the cylinder 544 enters the valve body through the gas port B, and then is discharged to the outside from the gas port S, thereby controlling the pneumatic tank cover 54 to close the tank port 511;

[0131] When opened, the five-port two-position solenoid valve 72 is in the energized position, and the gas enters the valve body from the gas storage cylinder 71 from the gas port P, and then enters the rod chamber of the cylinder 544 through the gas port B, thereby pushing the cylinder rod to retract, and the gas in the rodless chamber of the cylinder 544 enters the valve body through the gas port A, and then is discharged to the outside from the gas port R, thereby controlling the pneumatic tank cover 54 to open the tank port 511.

[0132] In some embodiments, Figure 1 and Figure 4 As shown, in order to facilitate the loading and unloading of the lower part, a loading and unloading mechanism 8 is also included, which is installed on the rear load-bearing frame 6 and includes:

[0133] The pneumatic bottom valve 81 is installed on the discharge port 512 and is used to control the flow and closure of the fluid medium. The main components include a valve body, a valve disc, a piston, a pneumatic actuator and a control system. Based on the principle of pneumatic dynamics, air or compressed gas is transmitted through a pneumatic device to control the opening and closing movement of the valve disc;

[0134] A three-way pipe 82, a first port of which is connected to a pneumatic bottom valve 81 box;

[0135] The API valve 83 is connected to the second port of the three-way pipe 82 and is connected to the external oil filling device to provide oil filling power. The valve has high reliability and safety under high pressure, high temperature and harsh working conditions;

[0136] The pneumatic ball valve 84, whose inlet is connected to the third port of the three-way pipe 82, controls the up and down movement of the valve stem through the pneumatic actuator, thereby rotating the ball to open or close the valve disc. When the valve disc rotates to fit the valve seat completely, the valve is in a closed state; and when the valve disc rotates to fully open the channel, the valve is in a fully open state, with the advantages of fast response, good sealing, large diameter and high pressure capacity, corrosion resistance and automatic control;

[0137] The first filter 85, whose inlet is connected to the outlet of the pneumatic ball valve 84, is used to filter and remove suspended matter, particles, impurities and pollutants in the liquid;

[0138] The flow meter 86 has an inlet connected to the outlet of the first filter 85 and is used to measure the fluid flow rate or volume flow.

[0139] The above-mentioned loading and unloading mechanism 8 is specifically operated as follows:

[0140] When loading at the bottom, the pneumatic bottom valve 81 is opened, and the liquid medium flows from the API valve 83 → the pneumatic bottom valve 81 → the discharge port 512 → the tank body 5 in sequence, thereby realizing the function of loading at the bottom;

[0141] When discharging from the bottom, the pneumatic bottom valve 81 and the pneumatic ball valve 84 are opened, so that the liquid medium flows in sequence from the inside of the tank body 5 → the discharge port 512 → the pneumatic bottom valve 81 → the pneumatic ball valve 84 → the first filter 85 → the flow meter 86 → the outlet, thereby realizing the function of discharging from the bottom.

[0142] The above arrangement can realize lower loading and unloading, save time and labor, improve working efficiency, enhance use effect, and facilitate actual production use.

[0143] Based on the above embodiments, Figure 5 As shown, in order to facilitate the remote control of the loading and unloading mechanism 8, the pneumatic control mechanism 7 also includes: a three-port two-position solenoid valve 1 73 and a three-port two-position solenoid valve 2 74.

[0144] Specifically, the three-port two-position solenoid valve 73 includes:

[0145] The air port M is connected to the air reservoir 71.

[0146] Gas port N is connected to the outside world.

[0147] Air port L is connected to the pneumatic bottom valve 81.

[0148] Among them, when the three-port two-position solenoid valve 73 is located at the power-on position, the air port M is connected to the air port L; when the three-port two-position solenoid valve 73 is located at the power-off position, the air port N is connected to the air port L.

[0149] The above three-port two-position solenoid valve 73 has the following specific operations:

[0150] Under normal conditions, the three-port two-position solenoid valve 73 is in the power-off position, and the air port L is connected to the air port N, so that the pneumatic bottom valve 81 is in the closed state;

[0151] When starting, the three-port two-position solenoid valve 1 73 is in the energized position, and the gas enters the valve body from the gas reservoir 2 71 through the gas port M, and then enters the pneumatic bottom valve 81 through the gas port L, and drives the pneumatic bottom valve 81 to open.

[0152] Specifically, the three-port two-position solenoid valve 2 74 comprises:

[0153] The air port X is connected to the air reservoir 71.

[0154] Air port Y is connected to the outside world.

[0155] Air port Z is connected to the pneumatic ball valve 84.

[0156] When the three-port two-position solenoid valve 2 74 is located at the power-on position, the air port X is connected to the air port Z; when the three-port two-position solenoid valve 2 74 is located at the power-off position, the air port Y is connected to the air port Z.

[0157] The specific operation of the three-port two-position solenoid valve 74 is as follows:

[0158] Under normal conditions, the three-port two-position solenoid valve 2 74 is in the power-off position, and the air port Z is connected to the air port Y, so that the pneumatic ball valve 84 is in the closed state;

[0159] When starting, the three-port two-position solenoid valve 2 74 is in the power-on position, and the gas enters the valve body from the gas reservoir 2 71 through the gas port X, and then enters the pneumatic ball valve 84 through the gas port Z, and drives the pneumatic bottom valve 81 to open.

[0160] In some embodiments, Figure 5 As shown, the pneumatic control mechanism 7 also includes:

[0161] The oil-water separator 75 has an inlet connected to the air storage cylinder 2 71 , and an outlet connected to the air port P, the air port M and the air port X.

[0162] It should be noted that the oil-water separator 75 is used to filter the water vapor in the gas circuit and then add oil mist to the gas circuit to lubricate the valves in the gas circuit, which increases the service life of the pneumatic equipment, reduces failures and reduces maintenance costs.

[0163] In some embodiments, Figure 5 As shown, for the convenience of operation control, a power switch 9 is also included, which is connected to a 24V power supply for power supply, including:

[0164] The first button 91 is electrically connected to the three-port two-position solenoid valve 2 74. When the first button 91 is pressed, the three-port two-position solenoid valve 2 74 is energized, and thus it changes from a power-off position to a power-on position.

[0165] The second button 92 is electrically connected to the three-port two-position solenoid valve 1 73. When the second button 92 is pressed, the three-port two-position solenoid valve 1 73 is energized, and thus it changes from the power-off position to the power-on position.

[0166] The third button 93 is electrically connected to the five-port two-position solenoid valve 72. When the third button 93 is pressed, the five-port two-position solenoid valve 72 is energized, and thus changes from a power-off position to a power-on position.

[0167] By providing the power switch 9, the operating switch can be integrated, thereby improving the portability and efficiency of the operation and facilitating use in actual working conditions.

[0168] In some embodiments, Figure 6 As shown, to achieve remote service braking, the pneumatic control mechanism 7 also includes:

[0169] Gas supply mechanism 76;

[0170] Gas reservoir one 77, connected to gas reservoir two 71;

[0171] A plurality of brake air chambers 78, the rear chamber of which is in communication with the air reservoir 2 71;

[0172] Emergency relay valve 79, including

[0173] The air inlet H is connected to the air supply mechanism 76.

[0174] The air outlet I is connected to the air storage cylinder 77.

[0175] Control import J,

[0176] A plurality of control outlets K are connected to the control inlet J and are connected to the front chamber of the brake air chamber 78 in a one-to-one correspondence;

[0177] It should be noted that the brake air chambers 78 are preferably four, namely, the front axle left brake air chamber, the front axle right brake air chamber, the rear axle left brake air chamber and the rear axle right brake air chamber; the corresponding control outlets K also have four, namely, K1, K2, K3 and K4;

[0178] Solenoid proportional valve 7A, including

[0179] Gas port E is connected to gas reservoir 77.

[0180] Air port F is connected to the outside world.

[0181] The air port G is connected to the control inlet J of the emergency relay valve 79.

[0182] Among them, when the electromagnetic proportional valve 7A is located at the power-on position, the air port E is connected to the air port G; when the three-port two-position electromagnetic valve 74 is located at the power-off position, the air port F is connected to the air port G.

[0183] The specific operation of the electromagnetic proportional valve 7A is as follows:

[0184] Under normal conditions, the electromagnetic proportional valve 7A is located at the power-off position, the gas port F is connected to the gas port G, and the gas port E is not connected to the gas port G, so that the gas in the gas reservoir 77 cannot enter the control inlet J through the electromagnetic proportional valve 7A;

[0185] When starting, the three-port two-position solenoid valve 2 74 is in the energized position, and the gas enters the valve body from the gas port E through the gas storage cylinder 1 77, and then enters the control inlet J through the gas port G.

[0186] It should also be noted that if Figure 7 The table shows the corresponding relationship between brake pressure and analog input, and different analog signals of 4 to 20ma are provided to the electromagnetic proportional valve 7A remotely to realize service braking.

[0187] The specific operations are as follows:

[0188] The air supply path is: air supply mechanism 76 → air inlet H of emergency relay valve 79 → air outlet I of emergency relay valve 79 → air reservoir 1 77 → air reservoir 2 71 → rear cavity of each brake air chamber 78;

[0189] The control air circuit is: air reservoir 77 → electromagnetic proportional valve 7A → control inlet J of emergency relay valve 79 → each control outlet K of emergency relay valve 79 → front cavity of each brake air chamber 78 to realize service braking.

[0190] Through the above settings, a 4-20ma analog signal can be provided to the electromagnetic proportional valve 7A to provide different brake pressures, thereby realizing remote brake control, which gets rid of the constraints of the brake pedal and provides technical support for realizing automatic driving of the tractor and unmanned control of the brake pedal.

[0191] In some embodiments, to facilitate gas supply, the gas supply mechanism 76 includes:

[0192] Quick connector 761, used to connect with the air compressor on the tractor;

[0193] The second filter 762, whose inlet is connected to the outlet of the quick connector 761, is used to filter and remove suspended matter, particles, impurities and pollutants in the gas;

[0194] The one-way valve 763 has an inlet connected to the outlet of the second filter 762 and an outlet connected to the air inlet H, and is used to prevent backflow, protect equipment, maintain pressure stability and reduce vibration and noise.

[0195] Through the above arrangement, the air compressor on the tractor can be used to supply air to the entire pneumatic control mechanism 7, which reduces the cost, provides stable and clean air supply, and has a good use effect.

[0196] In the specification of the present utility model, a lot of specific details are described. However, it is understood that the embodiments of the present utility model can be practiced without these specific details. In some examples, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this specification.

[0197] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0198] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A fully-mounted tank-type normal pressure liquid transport vehicle, characterized in that: include: Front slewing frame (1); A traction tripod (2) mounted on the front end of the front rotating frame (1); A three-ball turntable (3) is mounted on the top of the front rotating frame (1); The upper sub-frame (4) has a front end bottom connected to the three-ball turntable (3); A tank body (5) is mounted on the top of the upper sub-frame (4); A rear bearing frame (6), the top of which is connected to the rear end bottom of the upper sub-frame (4); A load buffer plate (10) is arranged between the upper sub-frame (4) and the tank body (5).

2. The full-mount tank type normal pressure liquid transport vehicle according to claim 1 is characterized in that: The tank body (5) comprises: The cylinder (51) is arranged transversely, the top of the cylinder (51) is provided with a tank opening (511), and the bottom of the rear end of the cylinder (51) is provided with a discharge port (512); Two sealing heads (52) are respectively installed at two ends of the cylinder (51); A plurality of wave-breaking plates (53) are installed in the cylinder (51) at intervals in the transverse direction; The pneumatic tank cover (54) is installed on the top of the cylinder (51) and is matched with the tank mouth (511).

3. The full-mount tank type normal pressure liquid transport vehicle according to claim 2 is characterized in that: The pneumatic tank cover (54) comprises: A tank cover (541) matched with the tank opening (511); A support (542) is installed outside the tank opening (511); A support plate (543), one end of which is connected to the top of the tank cover (541), and the other end of which is hinged to the support (542); The cylinder (544) has one end hinged to the support plate (543) and the other end hinged to the cylinder (51).

4. The full-mounted tank type normal pressure liquid transport vehicle according to claim 3 is characterized in that: Also included is a pneumatic control mechanism (7), comprising: Gas reservoir 2 (71); A five-port two-position solenoid valve (72) comprising The air port A is connected to the rodless chamber of the air cylinder (544). The air port B is connected to the rod chamber of the air cylinder (544). Air port S is connected to the outside world. The gas port P is connected to the gas storage cylinder 2 (71), Air port R, connected to the outside world; Among them, when the five-port two-position solenoid valve (72) is located in the power-on position, the air port A is connected to the air port P, and the air port B is connected to the air port S; when the five-port two-position solenoid valve (72) is located in the power-off position, the air port A is connected to the air port R, and the air port B is connected to the air port P.

5. The full-mount tank type normal pressure liquid transport vehicle according to claim 4 is characterized in that: It also includes a loading and unloading mechanism (8), which is installed on the rear load-bearing frame (6) and includes: A pneumatic bottom valve (81) installed on the discharge port (512); A three-way pipe (82), a first port of which is connected to the pneumatic bottom valve (81) box; An API valve (83) connected to the second port of the three-way pipe (82); a pneumatic ball valve (84), the inlet of which is connected to the third port of the three-way pipe (82); A first filter (85), the inlet of which is connected to the outlet of the pneumatic ball valve (84); A flow meter (86) has an inlet connected to an outlet of the first filter (85).

6. The full-mount tank type normal pressure liquid transport vehicle according to claim 5, characterized in that: The pneumatic control mechanism (7) further comprises: Three-port two-position solenoid valve (73), including The gas port M is connected to the gas storage cylinder 2 (71), Gas port N is connected to the outside world. The air port L is connected to the pneumatic bottom valve (81). Wherein, when the three-port two-position solenoid valve 1 (73) is located at the power-on position, the gas port M is connected to the gas port L; when the three-port two-position solenoid valve 1 (73) is located at the power-off position, the gas port N is connected to the gas port L; Three-port two-position solenoid valve 2 (74), including The air port X is connected to the air storage cylinder 2 (71), Air port Y is connected to the outside world. Air port Z is connected to the pneumatic ball valve (84), When the three-port two-position solenoid valve 2 (74) is located at the power-on position, the gas port X is connected to the gas port Z; when the three-port two-position solenoid valve 2 (74) is located at the power-off position, the gas port Y is connected to the gas port Z.

7. The full-mount tank type normal pressure liquid transport vehicle according to claim 6, characterized in that: The pneumatic control mechanism (7) further comprises: The oil-water separator (75) has an inlet connected to the second air storage cylinder (71) and an outlet connected to the air port P, the air port M and the air port X.

8. The full-mount tank type normal pressure liquid transport vehicle according to claim 6, characterized in that: Also includes: A power switch (9), comprising A first button (91) is electrically connected to the three-port two-position solenoid valve second (74); A second button (92) is electrically connected to the three-port two-position solenoid valve (73); The third button (93) is electrically connected to the five-port two-position solenoid valve (72).

9. The full-mounted tank type normal pressure liquid transport vehicle according to claim 6, characterized in that: The pneumatic control mechanism (7) further comprises: Air supply mechanism (76); Gas storage cylinder 1 (77), connected to gas storage cylinder 2 (71); A plurality of brake air chambers (78), the rear chamber of which is in communication with the second air reservoir (71); Emergency relay valve (79), including The air inlet H is connected to the air supply mechanism (76). The gas outlet I is connected to the gas storage cylinder 1 (77), Control import J, A plurality of control outlets K are connected to the control inlet J and are connected to the front chamber of the brake air chamber (78) in a one-to-one correspondence; Solenoid proportional valve (7A), including The air port E is connected to the air storage cylinder 1 (77), Air port F is connected to the outside world. The air port G is connected to the control inlet J of the emergency relay valve (79). When the electromagnetic proportional valve (7A) is in the power-on position, the air port E is connected to the air port G; when the three-port two-position electromagnetic valve (74) is in the power-off position, the air port F is connected to the air port G.

10. The full-mount tank type normal pressure liquid transport vehicle according to claim 9, characterized in that: The air supply mechanism (76) comprises: Quick connector (761); A second filter (762), the inlet of which is connected to the outlet of the quick connector (761); A one-way valve (763), wherein the inlet is connected to the outlet of the second filter (762), and the outlet is connected to the air inlet H.

Images