CN108867731B

CN108867731B - Multi-power energy-saving bulldozer

Info

Publication number: CN108867731B
Application number: CN201810969055.1A
Authority: CN
Inventors: 苏燕芳
Original assignee: Nanjing Lishui Hi Tech Industry Equity Investment Co Ltd
Current assignee: Nanjing Lishui Hi Tech Industry Equity Investment Co Ltd
Priority date: 2018-08-23
Filing date: 2018-08-23
Publication date: 2021-06-01
Anticipated expiration: 2038-08-23
Also published as: CN108867731A

Abstract

The invention relates to a multi-power energy-saving bulldozer which comprises a bulldozer body support, a cockpit arranged on the bulldozer body support, a solar battery pack above the cockpit, a storage battery arranged on the forklift body support behind the cockpit, a main power system arranged in the bulldozer body support, a bucket actuating device in front of the bulldozer body and a walking device below the bulldozer body. The bucket actuating device comprises a hydraulic rod, a connecting mechanism and a bucket; the traveling device comprises a main driving wheel, an auxiliary driving wheel motor set, a guide wheel, a thrust wheel, a support and a crawler; the main power system comprises an oil tank, an internal combustion engine system working system and a fuel oil mixing system. The bulldozer adopts a hybrid power technology, can be driven by mixed fuel and additional electric power, and is environment-friendly and efficient.

Description

Multi-power energy-saving bulldozer

Technical Field

The invention relates to the field of locomotives, in particular to a multi-power energy-saving bulldozer.

Background

The existing bulldozer only burns diesel oil generally, and the power required by the bulldozer is only provided by burning diesel oil by an internal combustion engine, so that a large amount of non-renewable resources such as diesel oil and the like can be used in the use aspect of the bulldozer, and therefore the multi-power energy-saving bulldozer is required to overcome the defects.

Disclosure of Invention

Aiming at the problems, the invention provides a multi-power energy-saving bulldozer.

The purpose of the invention is realized by adopting the following technical scheme:

a multi-power energy-saving bulldozer comprises a bulldozer body support, a cockpit, a solar battery pack, a storage battery, a main power system, a bucket actuating device and a traveling device; the cab is mounted on the vehicle body support, the solar battery pack is arranged above the cab, the storage battery is arranged on the vehicle body support behind the cab, the main power system is placed in the vehicle body support, the bucket actuating device is connected to the front of the vehicle body, and the traveling device is arranged below the vehicle body support; the main power system comprises an oil tank, a fuel oil mixing system and an internal combustion engine system working system. The bucket actuating device comprises a hydraulic rod, a connecting mechanism and a bucket, wherein the hydraulic rod is connected with the vehicle body and the connecting mechanism, and the connecting mechanism is connected with the bucket and the hydraulic rod. The walking device comprises a main driving wheel, an auxiliary driving wheel motor set, a guide wheel, a thrust wheel, a support and a crawler; the main driving wheel and the auxiliary driving wheel are connected by a support and are wrapped by the crawler belt, the support is provided with a guide wheel and a thrust wheel, the guide wheel guides the crawler belt, and the thrust wheel supports the crawler belt; the auxiliary driving wheel motor set is connected with the auxiliary driving wheel. The main power system comprises an oil tank, a fuel oil mixing system and an internal combustion engine system working system; the oil tank is connected with a fuel oil mixing system through a pipeline, and the fuel oil mixing system is connected with an internal combustion engine working system through a pipeline.

The invention has the beneficial effects that: the solar energy-assisted bulldozer can utilize clean energy to assist the bulldozer to work, renewable energy such as bio-oil can also be utilized, the dual-power system can enable the bulldozer to have enough driving force to work, meanwhile, the fuel oil mixing system enables bio-oil and diesel oil to be mixed for use, the renewable resources are partially replaced by the non-renewable resources used in the prior art, and the solar energy-assisted bulldozer is environment-friendly and clean while saving resources.

Drawings

The invention is further illustrated by means of the attached drawings, but the embodiments in the drawings do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be obtained on the basis of the following drawings without inventive effort.

FIG. 1 is a schematic view of the overall construction of a bulldozer;

FIG. 2 is a schematic diagram showing the overall structure of a fuel intensive mixing system;

FIG. 3 is a schematic structural view of the extendable rod;

FIG. 4 is a schematic structural diagram of a giant magnetoresistive device;

FIG. 5 is a schematic view of a venting arrangement;

fig. 6 is a schematic structural diagram of the composite piezoelectric transducer.

Reference numerals: a return line-1; a liquid inlet pipeline a-2; a liquid inlet pipeline b-3; a stirring chamber-4; a liquid level sensor-5; a temperature sensor-6; a temperature control water pipe-7; a water pump-8; temperature controller-9; a composite piezoelectric transducer-10; a branch air outlet pipe-11; a motor-12; a coupler-13; -14, an exhaust port; an upper fixed disc-15; a telescopic rod-16; a nut-17; a lower fixed disc-18; screw-19; stirring ring-20; an air intake duct-21; a temporary storage chamber-22; an air pump-23; an outlet pipe-24; a midway liquid discharge pipeline-25; a giant magneto device a-26; a giant magneto device b-27; a light wave emitter-28; a left fixing plate-29; a light wave receiver-30; a right fixing plate-31; a liquid discharge port-32; an upper telescopic rod-41; a middle telescopic rod-42; a lower telescopic rod-43; a coil-51; a connecting rod-52; a stop-53; -54 threaded hole; a giant magnetostrictive rod-55; fixedly connected with a shell-56; annular piezoelectric ceramic crystal-61; an annular steel plate-62; flatly pressing air holes-71; a movable plug-72; spring-73; an air chamber housing-74; an air outlet-75; a flat pressing shell-76; main power system-100; a solar cell group-101; a cockpit-102; a storage battery-103; a body bracket-104; a secondary drive wheel-105; a secondary drive wheel motor set-106; a guide wheel-107; a thrust wheel-108; a support-109; a track-110; main drive wheel-111; a hydraulic rod-112; a connecting mechanism-113; a bucket-114.

Detailed Description

The invention is further described with reference to the following examples.

The multi-power energy-saving bulldozer shown in fig. 1 comprises a main power system 100, a solar battery pack 101, a cab 102, a storage battery 103, a vehicle body bracket 104, a secondary driving wheel 105, a secondary driving wheel motor set 106, a guide wheel 107, a thrust wheel 108, a bracket 109, a crawler 110, a main driving wheel 111, a hydraulic rod 112, a connecting mechanism 113 and a bucket 114; the cab 102 is mounted on a vehicle body support 104, the solar battery pack 101 is arranged above the cab 102, the storage battery 103 is arranged on the vehicle body support 104 behind the cab 102, the main power system 100 is arranged in the vehicle body support 104, the bucket actuating device (comprising a hydraulic rod 112, a connecting mechanism 113 and a bucket 114) is connected in front of the vehicle body, the traveling device (comprising a secondary driving wheel 105, a secondary driving wheel motor set 106, a guide wheel 107, a thrust wheel 108, a support 109, a crawler 110 and a main driving wheel 111) is arranged below the vehicle body support 104, and the main power system 100 (comprising an oil tank, an internal combustion engine system working system and a fuel mixing system) is arranged in the vehicle body support 104; the solar battery pack 101 absorbs solar energy and stores electric energy in the storage battery 103, and the storage battery 103 supplies power to power utilization facilities in the vehicle; the front wheel of the walking device is a main driving wheel 111, the main driving wheel 111 is powered by an internal combustion engine in the main power system 100, and the auxiliary driving wheel 105 is powered by an auxiliary driving wheel motor set 106; the main power system 100 includes an oil tank, a fuel mixing system, and an internal combustion engine operating system. The biofuel and the diesel are respectively stored in the two storage tanks, when the bulldozer starts, the fuel enters the fuel mixing system through a pipeline, and the mixed solution enters the internal combustion engine working system to work after being qualified.

The invention can utilize clean energy solar energy to assist the bulldozer to work, and can also utilize renewable energy such as biological oil, and the like, thereby being environment-friendly and energy-saving; the bio-oil and the diesel oil can be better combusted due to mixing, and the bio-oil and the diesel oil cannot be well mixed due to different densities, so that the two kinds of oil added with the catalyst can be fully mixed under the action of a fuel oil mixing system, and the combustion is more thorough.

As shown in fig. 2, the fuel mixing system includes a fuel mixing device and a temporary storage device.

The fuel mixing device mainly has the function that two kinds of fuel in the liquid inlet pipeline a2 and the liquid inlet pipeline b3 are quickly and fully mixed together after stirring and vibration. The mixed fuel enters the temporary fuel storage device through a midway liquid discharge pipeline 25. The temporary fuel storage device is mainly used for detecting whether fuel flowing out from the fuel mixing device is sufficiently mixed or not, if the fuel is not sufficiently mixed, the fuel flows back to the fuel mixing device to be mixed again, and if the fuel is mixed to reach a standard, the fuel flows out of a fuel mixing system.

The fuel mixing device comprises a stirring chamber 4, and a stirring device, a bubble circulation generation device, a vibration generation device, a fuel constant temperature device, a pressure balance device, a sensor and the like are arranged on the stirring chamber 4.

The stirring device is mainly used for stirring the fuel oil in the cavity in a large range to ensure that the fuel oil in the cavity is in a certain state with a certain mixing degree; the bubble circulation generating device can continuously bring bubbles from the upper part to the lower part of the cavity, and due to different densities, the bubbles can rise to the upper part of the cavity from the lower part through mixed fuel oil, and drive the fuel oil to flow in the rising process of the bubbles, and simultaneously, the fuel oil is fully mixed under the stirring of the stirring device; in addition, the vibration generating device sends out ultrasonic waves to drive the fuel in the stirring chamber 4 to vibrate, and cavitation occurs to promote fuel fusion; the fuel oil constant temperature device can ensure that the mixed fuel oil in the stirring chamber 4 is at a constant temperature suitable for fusion, so that the fuel oil mixing effect is better; the pressure balancing device is used for balancing the air pressure in the cavity and ensuring the work safety; the sensor is used for assisting the normal work of the device. Specifically, the stirring device comprises a motor 12, a coupler 13, an upper fixed disk 15, a telescopic rod 16, a nut 17, a lower fixed disk 18, a screw rod 19 and a stirring ring 20. The screw rod 19 is fixed below the stirring chamber 4, threads are uniformly distributed on the rod body of the screw rod 19, the motor 12 is fixedly connected above the stirring chamber 4, the motor 12 is connected with the upper fixing disk 15 through the coupler 13, the coupler 13 is driven to rotate and then the upper fixing disk 15 is driven to rotate by the forward and reverse rotation of the motor 12, the lower fixing disk 18 is arranged below the upper fixing disk 15, the upper fixing disk 15 and the lower fixing disk 18 are connected through the telescopic rod 16, the lower fixing disk 18 is fixedly connected with the nut 17, the nut 17 is sleeved on the screw rod 19, and in addition, the lower fixing disk 18 is fixedly connected; the telescopic rod 16 has a partial structure as shown in fig. 3, and includes an upper telescopic rod 41, a middle telescopic rod 42 and a lower telescopic rod 43 which are connected in sequence, the bottom of the upper telescopic rod 41 is provided with a bend, and the matched end of the middle telescopic rod 42 connected with the upper telescopic rod 41 is provided with a corresponding bend, when the telescopic rod 16 is extended, the two bends are butted and limited to each other, so that the telescopic rod is not disjointed when being extended; when shortening, the lower telescopic rod 43 can be wrapped by the middle telescopic rod 42 and then wrapped by the outermost layer upper telescopic rod 41 so as to realize telescopic rod shortening.

The working principle of the stirring device is as follows: the motor 12 drives the coupler 13 and the upper fixing disc 15 to rotate, the upper fixing disc 15 drives the lower fixing disc 18 to rotate through the telescopic rod 16 when rotating, the lower fixing disc 18 drives the nut 17 to rotate, the nut 17 can axially move when rotating on the screw rod 19, and the telescopic rod 16 is driven to extend or shorten, so that the lower fixing disc 18, the nut 17 and the stirring ring 20 rotate and move up and down at the same time.

The stirring device finally realizes the radial movement of the stirring ring 20 while rotating through a series of transmission processes by the motor, so that the stirring ring 20 can stir the fuel oil in the whole chamber with the advantage of occupying small space, and the stirring movement can fully mix the fuel oil in a macroscopic view, thereby laying a foundation for the micro-mixing of the fuel oil.

The bubble circulation generating device comprises an air suction pipeline 21, an air pump 23, an air outlet pipeline 24 and a branch air outlet pipe 11, wherein the branch air outlet pipe 11 is distributed at the bottom in the stirring chamber 4. The working process of the bubble circulation generating device is as follows: the air pump 23 pumps the air from the upper part of the stirring chamber 4, then conveys the air to the lower part of the stirring chamber 4 and releases the air through the branch air outlet pipes 11 which are densely and uniformly distributed, so that the fuel oil in the stirring chamber 4 always contains a large amount of bubbles.

The vibration generating device comprises a composite piezoelectric transducer 10, the composite piezoelectric transducer 10 is embedded at the bottom outside the stirring chamber 4, the concrete structure of the composite piezoelectric transducer 10 is shown in fig. 6, the composite piezoelectric transducer comprises an annular piezoelectric ceramic crystal 61 and an annular steel plate 62, the annular steel plate 62 surrounds the annular piezoelectric ceramic crystal 61, and the annular steel plate 62 applies a certain pre-pressure to the annular piezoelectric ceramic crystal 61; after the power is on, the composite piezoelectric transducer 10 converts the electric energy into ultrasonic waves to drive the fuel in the stirring chamber 4 to vibrate.

The vibration generated by the vibration generating device finally acts on the fuel oil, the ultrasonic action can enable the fuel oil to generate cavitation, and the sudden closing of the cavitation can promote the full mixing of the two fuel oils; when the ultrasonic wave is transmitted in the fuel oil medium, a local high-energy environment can be generated in a micro-area of the medium for a very short time, and the original intermolecular acting force is reduced in the high-energy environment, so that the fuel oil is fully mixed. The annular steel plate 62 applies stress to the annular piezoelectric ceramic crystal 61 to improve the power limit of the annular piezoelectric ceramic crystal, and the annular piezoelectric ceramic crystal 61 is a radial vibration device, so that the ultrasonic cavitation effect is better.

The fuel oil constant temperature device comprises a temperature control water pipe 7, a water pump 8 and a temperature control instrument 9, wherein the temperature control water pipe 7 is partially arranged in the stirring chamber 4, and the water pump 8 and the temperature control instrument 9 are connected in series by the temperature control water pipe 7 outside the stirring chamber 4. The principle of the fuel oil constant temperature device is as follows: the water pump 8 drives the water in the temperature control water pipe 7 to circularly flow, and the temperature controller 9 controls the temperature of the fuel oil within a proper range.

The fuel oil mixing effect is usually the best within a certain temperature range, and the fuel oil constant temperature device can keep the fuel oil in the cavity within a certain temperature range, so that the fuel oil mixing effect is improved.

The pressure balancing device is an exhaust port 14, the structure of which is shown in fig. 5, and the pressure balancing device comprises a flat pressure air hole 71, a movable plug 72, a spring 73, an air cavity shell 74, an air outlet hole 75 and a flat pressure shell 76, wherein one end of the flat pressure air hole 71 is connected with one end of the inner cavity of the stirring chamber 4 and is connected into the movable plug 72, the movable plug 72 is movably connected with the air cavity shell 74, one end of the spring 73 is connected with the movable plug, the other end of the spring is connected with the lower end of the air cavity shell 74, the air cavity shell is fixedly connected with the flat pressure shell 76, and the; the working principle of the exhaust port 14 is as follows: when the pressure of the stirring chamber 4 reaches a certain height, the pressure of a closed chamber formed by the movable plug 72 and the gas chamber shell 74 is increased, the movable plug 72 moves upwards, the upper part of the movable plug 72 moves relative to the shell of the stirring chamber 4, the piston plugged on the shell of the stirring chamber 4 is opened, gas is discharged through the shell of the stirring chamber 4 and the gas outlet 75, when the pressure is reduced, the movable plug 72 is pulled back by the spring 73, a gap between the upper part of the movable plug 72 and the shell of the stirring chamber 4 is plugged again, and at the moment, the gas discharge is stopped.

The pressure balancing device is used for balancing the air pressure in the cavity, so that the air pressure is maintained in a safe range, and the safety of the mixing system is ensured.

The sensor comprises a liquid level sensor 5 and a temperature sensor 6, wherein the liquid level sensor 5 is positioned at the middle upper part of the left side of the cavity, and the temperature sensor 6 is positioned at the middle part of the left side of the cavity; the liquid level sensor 5 is used for measuring the liquid level height, when the liquid level reaches a certain height, fuel oil is forbidden to enter the stirring cavity 4, the temperature sensor 6 is used for measuring the temperature of the fuel oil, and when the temperature is not suitable for stirring, a signal is sent to act on the temperature controller 9 and the water pump 8 to enable the temperature controller and the water pump to work so as to control the temperature of the stirred fuel oil within a certain range.

The stirring device, the bubble circulation generating device and the vibration generating device in the fuel mixing device mutually promote to have unexpected beneficial effects on the mixing of the fuel. At the in-process of fuel mixing arrangement work, agitating unit stirs the mixture of fuel, and during this period, bubble circulating device makes and has a large amount of bubbles to exist in the fuel always, can stir the bubble during agitating unit stirring, and the bubble can be broken up into littleer bubble at stirring in-process, makes bubble and mixed fuel's area of contact bigger, and the ultrasonic wave that vibration generating device sent is used in the bubble, can let the bubble vibrate slightly, drives more fuel motions, makes the mixture more thorough.

The temporary oil storage device comprises a measuring device and a flow control device.

The measuring device comprises a light wave transmitter 28, a left fixing plate 29, a light wave receiver 30 and a right fixing plate 31, wherein the left fixing plate 29 is fixed on the temporary storage cavity 22, the light wave transmitter 28 is fixed on the left fixing plate 29, the right fixing plate 31 is fixed on the temporary storage cavity 22, the right fixing plate 31 is arranged on the right side of the left fixing plate 29, the light wave receiver 30 is arranged on the right fixing plate 31, and the light wave transmitter 28 and the light wave receiver 30 are fixed in a face-to-face mode.

The flow control device comprises a giant magneto device a26 and a giant magneto device b27, the giant magneto device a26 and the giant magneto device b27 are fixedly connected to the temporary storage cavity 22, the giant magneto device a26 is integrally arranged on the left side of the return pipeline 1, and the giant magneto device b27 is arranged between the liquid outlet 32 and the return pipeline 1. The giant magnetostrictive devices a26 and b27 are the same in structure as shown in fig. 4, and include a coil 51, a connecting rod 52, a shielding block 53, a threaded hole 54, a giant magnetostrictive rod 55 and a fixed connection shell 56, the fixed connection shell 56 is fixed on the temporary storage cavity 22, the giant magnetostrictive rod 55 fixedly connected to the fixed connection shell 56 at the left end can stretch and retract towards the right end, so as to drive the connecting rod 52 and the shielding block 53 to move towards the right, the coil 51 is wound around the giant magnetostrictive rod and is fixedly connected in the shell 56, and meanwhile, a left connector lug and a right connector lug extend out of an outdoor connection control circuit, the right end of the connecting rod 52 is threaded, the threaded hole 54 is arranged at the left end of the shielding block 53, and the threaded rod and the threaded hole can be matched with each other to adjust the initial position of.

The principle of the temporary oil storage device is as follows: after being stirred by the stirring chamber 4, the fuel flows into the temporary storage cavity 22 through the midway liquid drainage pipeline 25, the lightwave emitter 28 in the storage cavity emits lightwaves, and the lightwave receiver 30 receives lightwaves, so that the intensity of the lightwaves received by the lightwave receiver 30 is different due to different fuel mixing degrees, and the fuel mixing degree can be determined. When the fuel is mixed to be qualified, the coil current of the giant magnetostrictive device a26 is reduced, the giant magnetostrictive rod of the giant magnetostrictive device a26 is shortened, and the shielding block of the giant magnetostrictive device a26 shields the return port; the coil current of the giant magnetostrictive device b27 is increased, the giant magnetostrictive rod of the giant magnetostrictive device b27 is extended, the shielding block of the giant magnetostrictive device b27 is in a state of not blocking the return port, and the fuel in the temporary storage cavity 22 is discharged from the liquid discharge port 32. When fuel oil is not mixed properly, the coil current of the giant magnetostrictive device a26 is increased, the giant magnetostrictive rod of the giant magnetostrictive device a26 is extended, and the shielding block of the giant magnetostrictive device a26 does not shield the return port; the coil current of the giant magnetostrictive device b27 is reduced, the giant magnetostrictive rod of the giant magnetostrictive device b27 is shortened, the shielding block of the giant magnetostrictive device b27 is in a state of blocking a return port, and at the moment, the fuel oil in the temporary storage cavity 22 enters the stirring chamber 4 through the return pipeline 1 to be continuously stirred.

Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the protection scope of the present invention, although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. A multi-power energy-saving bulldozer is characterized by comprising a bulldozer body support, a cockpit, a solar battery pack, a storage battery, a main power system, a bucket actuating device and a traveling device; the cab is mounted on the vehicle body support, the solar battery pack is arranged above the cab, the storage battery is arranged on the vehicle body support behind the cab, the main power system is placed in the vehicle body support, the bucket actuating device is connected to the front of the vehicle body, and the traveling device is arranged below the vehicle body support; the main power system comprises an oil tank, a fuel oil mixing system and an internal combustion engine working system; the bucket actuating device comprises a hydraulic rod, a connecting mechanism and a bucket, wherein the hydraulic rod is connected with the vehicle body and the connecting mechanism, and the connecting mechanism is connected with the bucket and the hydraulic rod; the walking device comprises a main driving wheel, an auxiliary driving wheel motor set, a guide wheel, a thrust wheel, a support and a crawler; the main driving wheel and the auxiliary driving wheel are connected by a support and are wrapped by the crawler belt, the support is provided with a guide wheel and a thrust wheel, the guide wheel guides the crawler belt, and the thrust wheel supports the crawler belt; the auxiliary driving wheel motor set is connected with the auxiliary driving wheel; the main power system comprises an oil tank, a fuel oil mixing system and an internal combustion engine system working system; the oil tank is connected with a fuel oil mixing system through a pipeline, and the fuel oil mixing system is connected with an internal combustion engine working system through a pipeline; the fuel mixing system comprises a fuel mixing device and a temporary fuel storage device; the temporary oil storage device comprises a measuring device and a flow control device; the fuel mixing device comprises a stirring chamber, and the stirring chamber is provided with a stirring device, a bubble circulation generating device, a vibration generating device, a fuel constant temperature device, a pressure balancing device and a sensor; the stirring device is arranged above the stirring chamber, the bubble circulation generating device is arranged on the side surface of the stirring chamber, the vibration generating device is arranged at the bottom of the stirring chamber, the fuel oil constant temperature device is arranged on the side surface of the stirring chamber, the pressure balancing device is arranged on the stirring chamber, and the sensor is arranged in the stirring chamber; the temporary oil storage device comprises a measuring device and a flow control device, the measuring device is positioned in the temporary oil storage device, and the flow control device is arranged in the temporary storage cavity; the stirring device comprises a motor, a coupler, an upper fixing disc, a telescopic rod, a nut, a lower fixing disc, a screw and a stirring ring, wherein the motor is arranged above the stirring chamber; the flow control device comprises a giant magnetostrictive device and an oil way; the giant magnetostrictive device comprises a coil, a connecting rod, a blocking block, a threaded hole, a giant magnetostrictive rod and a fixed connection shell, wherein the fixed connection shell is fixed on the temporary storage cavity; the pressure balancing device comprises an exhaust structure, and the exhaust structure comprises a flat pressing air hole, a movable plug, a spring, an air cavity shell, an air outlet hole and a flat pressing shell; the flat pressing air hole is connected with the inner cavity of the stirring chamber and the movable plug, the movable plug is movably connected with the air cavity shell, one end of the spring is connected to the movable plug, the other end of the spring is connected to the lower end of the air cavity shell, the air cavity shell is fixedly connected to the flat pressing shell, and the flat pressing shell is fixed to the outer shell of the stirring chamber.