CN108569351B - Fire-fighting water intaking truck - Google Patents
Fire-fighting water intaking truck Download PDFInfo
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- CN108569351B CN108569351B CN201810482571.1A CN201810482571A CN108569351B CN 108569351 B CN108569351 B CN 108569351B CN 201810482571 A CN201810482571 A CN 201810482571A CN 108569351 B CN108569351 B CN 108569351B
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- oil
- hydraulic
- water taking
- water
- winch
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/06—Endless track vehicles with tracks without ground wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K25/00—Auxiliary drives
Abstract
The invention discloses a fire-fighting water intaking truck, which comprises a crawler chassis driven by hydraulic pressure, wherein an engine is arranged on the crawler chassis, and a gearbox is arranged at the output end of the engine; the front end of the crawler chassis is provided with a hydraulic suspension arm; a group of water taking systems are respectively arranged on two sides of the width direction of the crawler chassis, and each water taking system comprises a water taking module and a water taking hydraulic pump which can be suspended on the hydraulic suspension arm; the water taking module comprises a water pump and a water taking hydraulic motor which are integrally installed, and a water taking hydraulic pipe with the length being more than 20 meters is connected between the water taking hydraulic motor and the water taking hydraulic pump; the two water taking hydraulic pumps and the walking hydraulic pump are both arranged on the gearbox, an oil outlet of the walking hydraulic pump is connected with a control valve group, the control valve group comprises two walking control valves which are respectively used for controlling a left crawler belt and a right crawler belt of the crawler belt chassis, and a control oil port of the walking control valve is connected to the crawler belt chassis through a pipeline; the invention has the advantages of being suitable for various terrains, being capable of getting water close to natural water sources and the like.
Description
Technical Field
The invention relates to the technical field of fire fighting equipment, in particular to a fire fighting water intake truck.
Background
In a fire fighting system, water is used as a traditional fire extinguishing medium, is easy to take and occupies a considerable proportion in fire extinguishing operation. In cities, large buildings are equipped with a fire fighting water system and, through fire fighting tests, are able to provide a water supply to fire brigades in case of a fire. However, in a place far from urban areas, once a fire or other natural disasters occur, convenient fire water supply cannot be provided for fire fighting teams, and the fire fighting teams need to search for natural water sources such as rivers nearby to take water, but the accident site is far from the natural water source site, and therefore, the water in the natural water sources needs to be pumped out and then be transported to the accident site for providing fire water supply for the fire fighting teams.
However, the natural water source has a complicated terrain, or has many pits, so that the water source is not easy to approach, or the water taking head is large, so that the water taking is suspended from high altitude. Therefore, a fire-fighting water-taking vehicle which can be adapted to various terrains for taking water is urgently needed.
Disclosure of Invention
Aiming at the defects of the prior art, the technical problems to be solved by the invention are as follows: how to provide a fire-fighting water-taking vehicle which is suitable for various terrains and can take water close to a natural water source.
In order to solve the technical problems, the invention adopts the following technical scheme:
a fire fighting water intaking truck is characterized by comprising a crawler chassis driven by hydraulic pressure, wherein an engine is arranged on the crawler chassis, the engine is positioned in the middle of the crawler chassis in the width direction and is close to the rear end of the crawler chassis, and the output end of the engine is arranged towards the front end of the crawler chassis along the length direction of the crawler chassis; the middle part of the crawler chassis is also provided with a fuel tank, the fuel tank is positioned below the engine, and a fuel pipe of the engine is connected to the fuel tank; the output end of the engine is provided with a gearbox, and one side of the gearbox, which is far away from the engine, is provided with three gearbox output ends capable of cutting off power; the front end of the crawler chassis is provided with a hydraulic suspension arm; a group of water taking systems are respectively arranged on two sides of the width direction of the crawler chassis, and each water taking system comprises a water taking module and a water taking hydraulic pump which can be suspended on the hydraulic suspension arm; the water taking module comprises a water pump and a water taking hydraulic motor which are integrally installed, and a water taking hydraulic pipe with the length being more than 20 meters is connected between the water taking hydraulic motor and the water taking hydraulic pump; the water taking system also comprises a winch for winding and receiving the water taking hydraulic pipe; the two water taking hydraulic pumps are respectively arranged on the output ends of the two gearboxes, the output end of the other gearbox is provided with a walking hydraulic pump, the oil outlet of the walking hydraulic pump is connected with a control valve group, the control valve group comprises two walking control valves respectively used for controlling a left crawler and a right crawler of the crawler chassis, and the control oil port of the walking control valve is connected to the crawler chassis through a pipeline; the crawler chassis is further provided with a hydraulic oil tank, and an oil inlet of the water taking hydraulic pump and an oil inlet of the walking hydraulic pump are both connected to the hydraulic oil tank.
Furthermore, the winch comprises a winch bracket arranged on the crawler chassis and a winch rotating shaft consisting of an oil inlet steel pipe and an oil return steel pipe which are coaxially welded into a whole and are mutually separated in the interior, and the ends of the oil inlet steel pipe and the oil return steel pipe which are deviated from each other are rotatably arranged on the winch bracket through rotating joints; an oil outlet of the water taking hydraulic pump is connected to a rotary joint connected with the oil inlet steel pipe through a pipeline, and a rotary joint connected with the oil return steel pipe is connected to the hydraulic oil tank through a pipeline; the winch further comprises three drum frames and three circular baffles which are coaxially arranged on the winch rotating shaft, wherein the three circular baffles are arranged at equal intervals along the length direction of the winch rotating shaft, each drum frame comprises a plurality of drum steel pipes which are axially connected between two outermost circular baffles, and the drum steel pipes are uniformly distributed on the outer side of the winch rotating shaft along the circumferential direction; the pipe walls of the oil inlet steel pipe and the oil return steel pipe are respectively provided with a joint end which is communicated with each other, and an oil inlet and an oil return port of the water taking hydraulic motor are respectively connected to the joint ends of the oil inlet steel pipe or the oil return steel pipe through the water taking hydraulic pipe.
Further, the winch further comprises a winch speed reducer, one end of a winch rotating shaft is connected to the output end of the winch speed reducer, and a winch hydraulic motor is mounted at the input end of the winch speed reducer; the control valve group further comprises two winch control valves used for respectively controlling the winch hydraulic motors, and two control oil ports of the winch control valves are respectively connected to two working oil ports of the winch hydraulic motors through pipelines.
Furthermore, an oil leakage joint is connected between an oil return port of the water taking hydraulic motor and the water taking hydraulic pipe, a main oil hole which is arranged in a penetrating manner is formed in the oil leakage joint, and two ends of the main oil hole are respectively connected with the oil return port of the water taking hydraulic motor and the water taking hydraulic pipe; the inner diameter of a main oil hole of the oil leakage and return joint is gradually reduced from two ends to the middle part, an auxiliary oil hole vertically penetrating the main oil hole is further formed in the oil leakage and return joint, and the auxiliary oil hole and the main oil hole penetrate the position where the inner diameter of the main oil hole is the smallest; and an oil drain port of the water taking hydraulic motor is connected to an auxiliary oil hole of the oil drain and return joint through a pipeline.
Furthermore, an oil drainage one-way valve is further arranged between the oil drainage joint and an oil drainage port of the water taking hydraulic motor, an oil inlet of the oil drainage one-way valve is connected to the oil drainage port of the water taking hydraulic motor, and an oil return port is connected to the oil drainage joint.
Furthermore, an auxiliary oil return pump is arranged between the other end of the water taking hydraulic pipe connected with the oil return port of the water taking hydraulic motor and the hydraulic oil tank, an oil inlet of the auxiliary oil return pump is connected to the water taking hydraulic pipe, and an oil outlet of the auxiliary oil return pump is connected to the hydraulic oil tank; and the input shaft of the auxiliary oil return pump is connected with a driving device.
Furthermore, a bypass oil return pipe connected in parallel with the auxiliary oil return pump is connected between the hydraulic oil tank and the water taking hydraulic pipe.
Furthermore, the hydraulic oil tank comprises a left oil tank and a right oil tank which are symmetrically arranged at two sides of the engine, and the two water taking systems are respectively connected to the corresponding left oil tank or right oil tank; an oil inlet of the walking hydraulic pump is connected to the left oil tank or the right oil tank, and oil return ports of a left crawler belt and a right crawler belt of the crawler belt chassis are respectively connected to the corresponding left oil tank or the right oil tank through pipelines; and a communication oil pipe is connected between the left oil tank and the right oil tank, penetrates through the bottom of the engine, and two ends of the communication oil pipe are respectively connected to the bottoms of the left oil tank and the right oil tank.
Furthermore, left side oil tank and right oil tank are the closed oil tank isolated with the atmosphere, just all be provided with the pressurization gasbag in left side oil tank and the right oil tank, make pressure in left side oil tank and the right oil tank is greater than atmospheric pressure all the time.
Furthermore, the pressurizing air bags in the left oil tank and the right oil tank are communicated with each other.
In conclusion, the invention has the advantages of being suitable for various terrains, being capable of getting water close to natural water sources and the like.
Drawings
Fig. 1 is a side view schematic structure diagram of a fire fighting water intaking vehicle.
Fig. 2 is a schematic diagram of a part of hydraulic principle of the fire fighting water intaking vehicle.
Fig. 3 is a schematic structural view of a hydraulic oil tank portion.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
In the specific implementation: as shown in fig. 1 and 2, a fire fighting water intake truck comprises a crawler chassis 1 driven by hydraulic pressure, wherein an engine (not shown in the figure) is mounted on the crawler chassis 1, the engine is located in the middle of the crawler chassis 1 in the width direction and is close to the rear end of the crawler chassis 1, and the output end of the engine is arranged towards the front end of the crawler chassis 1 along the length direction of the crawler chassis 1; the middle part of the crawler chassis 1 is also provided with a fuel tank (not shown in the figure), the fuel tank is positioned below the engine, and a fuel pipe of the engine is connected to the fuel tank; the output end of the engine is provided with a gearbox (not shown in the figure), and one side of the gearbox, which is far away from the engine, is provided with three gearbox output ends capable of cutting off power; the front end of the crawler chassis 1 is provided with a hydraulic suspension arm 2; a group of water taking systems are respectively arranged on two sides of the width direction of the crawler chassis 1, and each water taking system comprises a water taking module and a water taking hydraulic pump 4 which can be suspended on the hydraulic suspension arm 2; the water taking module comprises a water pump and a water taking hydraulic motor 5 which are integrally installed, and a water taking hydraulic pipe with the length of more than 20 meters is connected between the water taking hydraulic motor 5 and the water taking hydraulic pump 4; the water taking system also comprises a winch 6 for coiling and receiving the water taking hydraulic pipe; the two water taking hydraulic pumps 4 are respectively installed on the two gearbox output ends, the other gearbox output end is provided with a walking hydraulic pump 7, the oil outlet of the walking hydraulic pump 7 is connected with a control valve group 8, the control valve group 8 comprises two walking control valves respectively used for controlling a left crawler belt and a right crawler belt of the crawler belt chassis 1, and the control oil port of the walking control valve is connected to the crawler belt chassis 1 through a pipeline; the crawler chassis 1 is further provided with a hydraulic oil tank 9, and an oil inlet of the water taking hydraulic pump 4 and an oil inlet of the walking hydraulic pump 7 are connected to the hydraulic oil tank 9.
Adopt above-mentioned structure, send into crawler chassis 1 through walking control valve with hydraulic oil through walking hydraulic pump 7, drive crawler chassis 1 walking because crawler chassis 1 can adapt to various topography for whole water intaking car can adapt to the complicated changeable topography in nature water source ground, is convenient for get the water. During the water intaking, put into the nature water source with the water intaking module through hydraulic boom 2, will install two derailleur outputs and the gearbox combination of water intaking hydraulic pump 4, the high-pressure hydraulic oil drive water intaking hydraulic motor 5 that water intaking hydraulic pump 4 carried drives the water pump and rotates, fetches water from the nature water source. Because the length of the water taking hydraulic pipe is more than 20 meters, the water taking operation can be carried out from the lower part of the water taking module to the water source from a high place (such as a bridge) in a natural water source place with a large part of difference. In specific implementation, the control valve group 8 is further provided with a plurality of boom control valves for controlling the hydraulic booms.
When the winch is implemented, the winch 6 comprises a winch bracket arranged on the crawler chassis 1 and a winch rotating shaft consisting of an oil inlet steel pipe and an oil return steel pipe which are coaxially welded into a whole and are mutually separated in the inner parts, wherein the ends of the oil inlet steel pipe and the oil return steel pipe which are deviated from each other are rotatably arranged on the winch bracket through rotating joints; an oil outlet of the water taking hydraulic pump 4 is connected to a rotary joint connected with the oil inlet steel pipe through a pipeline, and a rotary joint connected with the oil return steel pipe is connected to the hydraulic oil tank 9 through a pipeline; the winch 6 further comprises three drum frames and three circular baffles which are coaxially arranged on the winch rotating shaft, wherein the three circular baffles are arranged at equal intervals along the length direction of the winch rotating shaft, each drum frame comprises a plurality of drum steel pipes which are axially connected between two outermost circular baffles, and the drum steel pipes are uniformly distributed on the outer side of the winch rotating shaft along the circumferential direction; the pipe walls of the oil inlet steel pipe and the oil return steel pipe are respectively provided with a joint end which is communicated with each other, and an oil inlet and an oil return port of the water taking hydraulic motor 5 are respectively connected to the joint ends of the oil inlet steel pipe or the oil return steel pipe through the water taking hydraulic pipe.
By adopting the structure, the roller steel pipes are uniformly distributed along the circumferential direction, so that the water taking hydraulic pipe can penetrate through the joint end between two adjacent roller steel pipes and is connected to the joint end of the oil inlet steel pipe or the oil return steel pipe. The end parts of the oil inlet steel pipe and the oil return steel pipe are connected with the rotary joint, so that hydraulic oil can enter the water taking hydraulic pipe through the rotary joint and is conveyed to the water taking hydraulic motor 5, the winch 6 can be guaranteed to normally rotate, and the function of coiling the water taking hydraulic pipe is realized.
In practice, the winch 6 further comprises a winch reducer, one end of the winch shaft is connected to the output end of the winch reducer, and a winch hydraulic motor (not shown in the figure) is installed at the input end of the winch reducer; the control valve group 8 further includes two winch control valves (not shown in the figure) for respectively controlling the winch hydraulic motors, and two control oil ports of the winch control valves are respectively connected to two working oil ports of the winch hydraulic motors through pipelines.
When the water taking hydraulic motor is in use, an oil leakage and return joint 10 is connected between an oil return port of the water taking hydraulic motor 5 and the water taking hydraulic pipe, a main oil hole which is arranged in a penetrating manner is formed in the oil leakage and return joint 10, and two ends of the main oil hole are respectively connected with the oil return port of the water taking hydraulic motor 5 and the water taking hydraulic pipe; the inner diameter of the main oil hole of the oil leakage joint 10 gradually decreases from two ends to the middle part, the oil leakage joint 10 is further provided with an auxiliary oil hole which is vertically communicated with the main oil hole, and the auxiliary oil hole and the main oil hole are communicated at the position where the inner diameter of the main oil hole is the smallest; and an oil drain port of the water taking hydraulic motor 5 is connected to an auxiliary oil hole of the oil drain and return joint 10 through a pipeline.
The water taking hydraulic motor 5 inevitably has internal leakage during operation, so that the pressure in the motor shell is increased, and in order to avoid the damage to the hydraulic motor caused by the overhigh pressure in the motor shell, the hydraulic oil leaked in the shell is usually required to be discharged. Because water intaking hydraulic motor 5 need transfer the nature water source in for water intaking hydraulic motor 5 is far away with hydraulic tank 9's distance, directly passes through pipe connection to hydraulic tank 9 with the draining mouth, both increases oil pipe purchasing cost, still can increase oil pipe accomodate the degree of difficulty and work load. By adopting the structure, when the water taking hydraulic motor 5 works, hydraulic oil flows out from the oil return port of the water taking hydraulic motor 5 at a high speed, and when the hydraulic oil passes through the position with the minimum inner diameter of the main oil hole, the flow speed of return oil is further increased, so that relative low pressure is formed in the auxiliary oil hole which is vertically communicated with the main oil hole, the oil discharge port is not impacted by the return oil pressure in the return oil hydraulic pipe, and the hydraulic oil with gradually increased pressure in the shell can flow back to the hydraulic oil tank 9 along with the return oil. Thereby solving the difficult problem of the arrangement of the hydraulic pipeline and reducing the purchasing cost of the hydraulic pipe.
During implementation, an oil drainage one-way valve 11 is further arranged between the oil drainage joint 10 and the oil drainage port of the water taking hydraulic motor 5, an oil inlet of the oil drainage one-way valve 11 is connected to the oil drainage port of the water taking hydraulic motor 5, and an oil return port is connected to the oil drainage joint 10.
Since the oil return pressure in the oil drain joint 10 is unstable, especially at the time of starting, the oil return flow rate is relatively small, and a relatively low pressure cannot be formed in the auxiliary oil hole, and the casing of the water intake hydraulic motor 5 is easily damaged by the oil return rushing into the oil drain hole. By adopting the structure, the oil drainage check valve 11 can prevent oil return backflushing, and internal leakage oil can conveniently flow into oil return through the oil drainage check valve 11 and then flow back to the hydraulic oil tank 9 after the oil return flow rate is stable.
In practice, the opening pressure of the oil drainage one-way valve 11 is lower than 500 bar.
Thus, once the internal leakage oil pressure in the casing exceeds the opening pressure of the oil drainage check valve 11, the oil drainage check valve 11 can be opened to flow into the oil return, so that the excessive high internal leakage oil pressure in the casing is prevented.
When the water taking hydraulic motor is in use, one end of the main oil hole, which faces an oil return opening of the water taking hydraulic motor 5, is provided with a first straight hole section with a constant inner diameter, the position with the minimum inner diameter of the main oil hole is provided with a second straight hole section with a constant inner diameter, and the length of the second straight hole section is consistent with the inner diameter of the auxiliary oil hole; a first taper hole section is arranged between the first straight hole section and the second straight hole section, and the taper of the first taper hole section is 20-23 degrees.
When the device is used, the inner diameter of the first straight hole section is 3-4 times of the inner diameter of the second straight hole section.
When the water intaking hydraulic pipe is in operation, a second taper hole section is arranged between one end of the main oil hole facing the water intaking hydraulic pipe and the second straight hole section, and the taper of the second taper hole section is 7-16 degrees.
When the water taking hydraulic motor is implemented, an auxiliary oil return pump 12 is further arranged between the other end of the water taking hydraulic pipe connected with the oil return port of the water taking hydraulic motor 5 and the hydraulic oil tank 9, the oil inlet of the auxiliary oil return pump 12 is connected to the water taking hydraulic pipe, and the oil outlet of the auxiliary oil return pump is connected to the hydraulic oil tank 9; the input shaft of the auxiliary oil return pump 12 is connected with a driving device 13, and the driving device 13 is a motor.
Because the water intaking vehicle needs to fetch water from a natural water source with a large fall sometimes, the water intaking hydraulic motor 5 generally needs to be lowered to a lower position, so that hydraulic oil in the water intaking hydraulic pipe has large gravitational potential energy, and the pressure of an oil outlet of the water intaking hydraulic motor 5 is large. By adopting the structure, the auxiliary oil return pump 12 is used for assisting in extracting the return oil in the water hydraulic pipe, and the oil return pressure of the oil outlet of the water taking hydraulic motor 5 can be reduced.
When in implementation, a bypass oil return pipe connected in parallel with the auxiliary oil return pump 12 is further connected between the hydraulic oil tank 9 and the water taking hydraulic pipe.
Therefore, the flow reduction or the stop of the auxiliary oil return pump 12 caused by faults can be prevented, the return oil in the water taking hydraulic pipe is prevented from flowing back to the oil tank, and the system is more stable.
During implementation, an oil return one-way valve 14 is further arranged between the bypass oil return pipe and the hydraulic oil tank 9, an oil inlet of the oil return one-way valve 14 is connected to the bypass oil return pipe, and an oil outlet of the oil return one-way valve is connected to the hydraulic oil tank 9.
During implementation, a radiator is further arranged between the oil outlet of the auxiliary oil return pump 12 and the hydraulic oil tank 9, and an oil inlet and an oil return port of the radiator are respectively connected to the oil outlet of the auxiliary oil return pump 12 and the hydraulic oil tank 9 through pipelines.
In implementation, as shown in fig. 3, the hydraulic oil tank 9 includes a left oil tank and a right oil tank symmetrically arranged on both sides of the engine, and the two water taking systems are respectively connected to the corresponding left oil tank or right oil tank; an oil inlet of the walking hydraulic pump 7 is connected to the left oil tank or the right oil tank, and oil return ports of a left crawler belt and a right crawler belt of the crawler belt chassis 1 are respectively connected to the corresponding left oil tank or the right oil tank through pipelines; and a communication oil pipe is connected between the left oil tank and the right oil tank, the communication oil pipe 15 penetrates through the bottom of the engine, and two ends of the communication oil pipe are respectively connected to the bottoms of the left oil tank and the right oil tank.
Because engine, capstan winch 6, water intaking module and oil tank have been arranged on the water intaking car for the space on the water intaking car is less, is connected to the oil return opening of the left track of crawler chassis 1 and the right track respectively to corresponding left oil tank or right oil tank, can make things convenient for arranging and installing of hydraulic line more. Because the oil inlet of walking hydraulic pump 7 can only be connected in one of left oil tank or right oil tank, when making crawler chassis 1 walk, partial hydraulic oil can flow to another oil tank through left track or right track from walking control valves 8, make the liquid level of an oil tank rise, the liquid level of another oil tank reduces, connect intercommunication oil pipe 15 between left oil tank and right oil tank, and pass from the engine bottom, both can utilize engine bottom space stringing, can make left oil tank and right oil tank realize the intercommunication through intercommunication oil pipe 15 again, guarantee that the liquid level of left oil tank and right oil tank is unanimous.
In practice, the communication oil pipe 15 is provided with a plurality of pipes.
Because the hydraulic oil has certain viscosity and relatively poor fluidity, the flow rate of the hydraulic oil between the left oil tank and the right oil tank can be increased by arranging the plurality of communicating oil pipes 15,
when in implementation, the left oil tank and the right oil tank are closed oil tanks isolated from the atmosphere, and the pressurizing air bags 16 are arranged in the left oil tank and the right oil tank, so that the pressure in the left oil tank and the right oil tank is always greater than the atmospheric pressure.
The left oil tank and the right oil tank are set to be closed oil tanks, so that hydraulic oil can be prevented from leaking out after any one oil tank is filled with the hydraulic oil, and the hydraulic oil with higher viscosity can be forced to flow into the oil tank on the other side through the communicating oil pipe 15 more quickly by utilizing the pressure in the oil tanks.
When the device is implemented, the pressurizing air bags in the left oil tank and the right oil tank are communicated with each other.
In specific implementation, the hydraulic schematic diagram in fig. 2 further includes other necessary hydraulic components, such as an overflow valve, an internal structure of a traveling control valve, a winch control valve, and the like, but none of these hydraulic components or the internal structure thereof is the creative contribution of the present application to the prior art, and therefore is not shown.
The above description is only exemplary of the present invention and should not be taken as limiting, and any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A fire fighting water intaking truck is characterized by comprising a crawler chassis driven by hydraulic pressure, wherein an engine is arranged on the crawler chassis, the engine is positioned in the middle of the crawler chassis in the width direction and is close to the rear end of the crawler chassis, and the output end of the engine is arranged towards the front end of the crawler chassis along the length direction of the crawler chassis; the middle part of the crawler chassis is also provided with a fuel tank, the fuel tank is positioned below the engine, and a fuel pipe of the engine is connected to the fuel tank; the output end of the engine is provided with a gearbox, and one side of the gearbox, which is far away from the engine, is provided with three gearbox output ends capable of cutting off power; the front end of the crawler chassis is provided with a hydraulic suspension arm; a group of water taking systems are respectively arranged on two sides of the width direction of the crawler chassis, and each water taking system comprises a water taking module and a water taking hydraulic pump which can be suspended on the hydraulic suspension arm; the water taking module comprises a water pump and a water taking hydraulic motor which are integrally installed, and a water taking hydraulic pipe with the length being more than 20 meters is connected between the water taking hydraulic motor and the water taking hydraulic pump; the water taking system also comprises a winch for winding and receiving the water taking hydraulic pipe; the two water taking hydraulic pumps are respectively arranged on the output ends of the two gearboxes, the output end of the other gearbox is provided with a walking hydraulic pump, the oil outlet of the walking hydraulic pump is connected with a control valve group, the control valve group comprises two walking control valves respectively used for controlling a left crawler and a right crawler of the crawler chassis, and the control oil port of the walking control valve is connected to the crawler chassis through a pipeline; the crawler chassis is also provided with a hydraulic oil tank, and an oil inlet of the water taking hydraulic pump and an oil inlet of the walking hydraulic pump are both connected to the hydraulic oil tank;
an auxiliary oil return pump is further arranged between the other end of the water taking hydraulic pipe connected with an oil return port of the water taking hydraulic motor and the hydraulic oil tank, an oil inlet of the auxiliary oil return pump is connected to the water taking hydraulic pipe, and an oil outlet of the auxiliary oil return pump is connected to the hydraulic oil tank; the input shaft of the auxiliary oil return pump is connected with a driving device; a bypass oil return pipe which is connected with the auxiliary oil return pump in parallel is connected between the hydraulic oil tank and the water taking hydraulic pipe; an oil return one-way valve is further arranged between the bypass oil return pipe and the hydraulic oil tank, an oil inlet of the oil return one-way valve is connected to the bypass oil return pipe, and an oil outlet of the oil return one-way valve is connected to the hydraulic oil tank;
the hydraulic oil tank comprises a left oil tank and a right oil tank which are symmetrically arranged on two sides of the engine, and the two water taking systems are respectively connected to the corresponding left oil tank or right oil tank; an oil inlet of the walking hydraulic pump is connected to the left oil tank or the right oil tank, and oil return ports of a left crawler belt and a right crawler belt of the crawler belt chassis are respectively connected to the corresponding left oil tank or the right oil tank through pipelines; a communicating oil pipe is connected between the left oil tank and the right oil tank, penetrates through the bottom of the engine, and two ends of the communicating oil pipe are respectively connected to the bottoms of the left oil tank and the right oil tank; the left oil tank and the right oil tank are both closed oil tanks isolated from the atmosphere, and pressurizing air bags are arranged in the left oil tank and the right oil tank, so that the pressure in the left oil tank and the right oil tank is always greater than the atmospheric pressure; and the pressurizing air bags in the left oil tank and the right oil tank are communicated with each other.
2. A fire fighting water intaking vehicle as claimed in claim 1, wherein said winch comprises a winch frame mounted on the crawler chassis, and a winch shaft comprising an oil intake steel pipe and an oil return steel pipe which are coaxially welded together and separated from each other inside, and the ends of said oil intake steel pipe and said oil return steel pipe which are opposite to each other are rotatably mounted on the winch frame through rotary joints; an oil outlet of the water taking hydraulic pump is connected to a rotary joint connected with the oil inlet steel pipe through a pipeline, and a rotary joint connected with the oil return steel pipe is connected to the hydraulic oil tank through a pipeline; the winch further comprises three drum frames and three circular baffles which are coaxially arranged on the winch rotating shaft, wherein the three circular baffles are arranged at equal intervals along the length direction of the winch rotating shaft, each drum frame comprises a plurality of drum steel pipes which are axially connected between two outermost circular baffles, and the drum steel pipes are uniformly distributed on the outer side of the winch rotating shaft along the circumferential direction; the pipe walls of the oil inlet steel pipe and the oil return steel pipe are respectively provided with a joint end which is communicated with each other, and an oil inlet and an oil return port of the water taking hydraulic motor are respectively connected to the joint ends of the oil inlet steel pipe or the oil return steel pipe through the water taking hydraulic pipe.
3. A fire fighting water supply truck as recited in claim 2, wherein said winch further comprises a winch reducer, one end of said winch shaft being connected to an output of said winch reducer, an input of said winch reducer being mounted with a winch hydraulic motor; the control valve group further comprises two winch control valves used for respectively controlling the winch hydraulic motors, and two control oil ports of the winch control valves are respectively connected to two working oil ports of the winch hydraulic motors through pipelines.
4. A fire-fighting water intaking vehicle as claimed in claim 1, wherein a water leaking oil return joint is connected between an oil return port of said water intaking hydraulic motor and said water intaking hydraulic pipe, said oil leaking joint having a main oil hole disposed therethrough, both ends of said main oil hole being connected to the oil return port of said water intaking hydraulic motor and said water intaking hydraulic pipe, respectively; the inner diameter of a main oil hole of the oil leakage and return joint is gradually reduced from two ends to the middle part, an auxiliary oil hole vertically penetrating the main oil hole is further formed in the oil leakage and return joint, and the auxiliary oil hole and the main oil hole penetrate the position where the inner diameter of the main oil hole is the smallest; and an oil drain port of the water taking hydraulic motor is connected to an auxiliary oil hole of the oil drain and return joint through a pipeline.
5. A fire fighting water intaking vehicle as claimed in claim 4, wherein an oil discharging check valve is further provided between said oil discharging and returning joint and the oil discharging port of said water intaking hydraulic motor, the oil inlet of said oil discharging check valve is connected to the oil discharging port of said water intaking hydraulic motor, and the oil returning port is connected to said oil discharging and returning joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482571.1A CN108569351B (en) | 2018-05-18 | 2018-05-18 | Fire-fighting water intaking truck |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810482571.1A CN108569351B (en) | 2018-05-18 | 2018-05-18 | Fire-fighting water intaking truck |
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| Publication Number | Publication Date |
|---|---|
| CN108569351A CN108569351A (en) | 2018-09-25 |
| CN108569351B true CN108569351B (en) | 2020-10-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810482571.1A Expired - Fee Related CN108569351B (en) | 2018-05-18 | 2018-05-18 | Fire-fighting water intaking truck |
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| Country | Link |
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| CN (1) | CN108569351B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2738833Y (en) * | 2004-10-29 | 2005-11-09 | 哈尔滨拖拉机厂 | Cantilever-type multifunction fire-fighting vehicle for forest |
| CN202961609U (en) * | 2012-12-04 | 2013-06-05 | 陕西银河消防科技装备有限公司 | Remote water supply system |
| CN106693247A (en) * | 2017-01-23 | 2017-05-24 | 苏州市捷达消防车辆装备有限公司 | Automatic water diversion fire-fighting truck with cargo boom rotation function |
| CN206334246U (en) * | 2016-12-30 | 2017-07-18 | 明光浩淼安防科技股份公司 | Multi-functional water intaking pressue device |
| CN206543345U (en) * | 2017-03-13 | 2017-10-10 | 苏州市捷达消防车辆装备有限公司 | Water fetching device |
-
2018
- 2018-05-18 CN CN201810482571.1A patent/CN108569351B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2738833Y (en) * | 2004-10-29 | 2005-11-09 | 哈尔滨拖拉机厂 | Cantilever-type multifunction fire-fighting vehicle for forest |
| CN202961609U (en) * | 2012-12-04 | 2013-06-05 | 陕西银河消防科技装备有限公司 | Remote water supply system |
| CN206334246U (en) * | 2016-12-30 | 2017-07-18 | 明光浩淼安防科技股份公司 | Multi-functional water intaking pressue device |
| CN106693247A (en) * | 2017-01-23 | 2017-05-24 | 苏州市捷达消防车辆装备有限公司 | Automatic water diversion fire-fighting truck with cargo boom rotation function |
| CN206543345U (en) * | 2017-03-13 | 2017-10-10 | 苏州市捷达消防车辆装备有限公司 | Water fetching device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108569351A (en) | 2018-09-25 |
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