CN102963250A - Driving device of twin-engine type fire truck - Google Patents
Driving device of twin-engine type fire truck Download PDFInfo
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- CN102963250A CN102963250A CN2012104277527A CN201210427752A CN102963250A CN 102963250 A CN102963250 A CN 102963250A CN 2012104277527 A CN2012104277527 A CN 2012104277527A CN 201210427752 A CN201210427752 A CN 201210427752A CN 102963250 A CN102963250 A CN 102963250A
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Abstract
The invention discloses a driving device of a twin-engine type fire truck, which is used for outputting power to drive a water pump to operate. The driving device comprises an engine (10), an electromagnetic clutch (11) and a transmission shaft (12), wherein the engine (10) is used for outputting the power to drive the water pump to operate, the electromagnetic clutch (11) is connected between the engine (10) and the transmission shaft (12) and used for controlling the connection and disconnection of the engine and the transmission shaft, and the transmission shaft (12) is connected between the electromagnetic clutch (11) and the water pump and used for transferring the power output by the engine (10) to the water pump so as to drive the water pump to operate. According to the driving device, a complex redundant structure that a power takeoff in a back-carrying engine of a conventional twin-engine type fire truck is connected with the water pump is not adopted, the water pump can be directly driven to operate and stop in an electric control mode only through the electromagnetic clutch, the structure of the device is greatly simplified, the quantity of components and parts is reduced, the cost of the device is reduced, and the operational stability is increased.
Description
Technical field
The present invention relates to the actuating device of a kind of pair of hairdo fire extinguishing tanker, concrete, relate to the Power Drive Unit of the backpack engine drive water pump of a kind of pair of hairdo fire extinguishing tanker.
Background technology
At present, the fire extinguishing tanker with spraying function is widely used in various occasions, such as factory, airport, densely populated business zone etc.Conventional fire extinguishing tanker all is that sandwich power takeoff is installed between engine in situ and power-transfer clutch, drives water pump by the power takeoff outputting power, thereby realizes the purpose of sprinkling fire.
But, for some occasion, the fire extinguishing tanker on duty on the airport for example, its most important characteristics that are different from conventional fire extinguishing tanker are that requirement fast response time, pick-up time are short.Simultaneously, fire extinguishing tanker requires to have the ability of fighting while walk, and Vehicle Speed generally is not less than 40km/h, and this is just to power and the very high requirement of performance proposition of engine in situ.For satisfying this requirement, the fire extinguishing tanker of most manufacturers production both at home and abroad adopts two be transported to interposed structure, i.e. two driving engines in a chassis usually; A driving engine is that the chassis carries, and another driving engine adopts rearmounted backpack, is exclusively used in the driving pump operation.
For the airport crash fire vehicle that adopts rearmounted backpack driving engine, conventional drive configuration is at the rear-mounted engine flywheel end power-transfer clutch (its common mode comprises pneumatic and mechanical dual mode) and power takeoff to be set, by joint and the running or the stall that disconnect with the realization water pump of clutch control power takeoff.
Although two hairdo fire extinguishing tankers of this routine can be realized the fire-fighting operation purpose, but because the mechanical clutch that has adopted power takeoff and be mated, inevitably increased the amount of parts of whole system, so that system architecture is complicated, bulky, equipment is heavy, fault rate is high, cost is high, can not be applicable to the fire-fighting war fighting requirement of increasingly stringent, particularly can not be satisfied with airport crash fire vehicle for high maneuverability, high reliability, the high efficiency requirement of operation.
For these reasons, be necessary to develop a kind of novel two hairdo fire extinguishing tankers, the drive configuration of this fire extinguishing tanker is simple, and operating mode is simply efficient, is fit to the technical requirements of growing fire protection sector.
Summary of the invention
The actuating device that the purpose of this invention is to provide a kind of pair of hairdo fire extinguishing tanker, it is by adopting engaging and disconnection of magnetic clutch control backpack driving engine and water pump drive spindle, thereby avoid adopting traditional power takeoff and the labyrinth of mechanical clutch, simplify the structure of actuating device, reduced cost.
According to an aspect of the present invention, provide the actuating device of a kind of pair of hairdo fire extinguishing tanker, be used for outputting power and drive pump operation, described device comprises: driving engine 10 is used for outputting power and drives pump operation; Magnetic clutch 11 is connected between described driving engine 10 and the transmission shaft 12, is used for engaging and disconnection of control control engine and transmission shaft; With transmission shaft 12, be connected between described magnetic clutch 11 and the water pump, the transmission of power feed pump that is used for described driving engine 10 is exported is to drive pump operation.
Preferably, described magnetic clutch 11 comprises: driving disc spacing pressing 110, the inboard of this driving disc spacing pressing are connected on the flywheel end face of driving engine 10; Clutch plate 111, the adjacent outside that is arranged on described driving disc spacing pressing is so that the inboard of this clutch plate and this driving disc spacing pressing gap spaced apart; With coil 112, be fixedly installed on the wooden dipper shell component in described clutch plate 111 outsides, be used for when energising, producing electromagnetic coupled power.
Preferably, described driving disc spacing pressing 110 is separately installed with friction disc 1100 and friction disc 1110 with clutch plate 111 relative sides, and the surface treatment of described friction disc becomes rough surface.
Preferably, the friction disc 1100 of described driving disc spacing pressing 110 is fixedly attached on the driving disc spacing pressing 110 by spring 1101 so that electromagnetic coupled power when disappearing friction disc 1100 under the elastic force effect of spring, break away from the friction disc 1110 of clutch plate.
Optionally, be provided with the engaging tooth of mutual interlock on the surface of described friction disc 1100,1110.
Wherein, described clutch plate 111 is captiveed joint with described transmission shaft 12, so that the rotation of described clutch plate can drive the rotation of this transmission shaft.
Wherein, described driving disc spacing pressing 110 and clutch plate 111 are installed on the centre rotational axis of driving engine in coaxial mode.
Preferably, described gap length is arranged in the 0.7-1mm scope.
Optionally, described magnetic clutch 11 also comprises controller, is used for joint and the disconnection of control magnetic clutch.
Optionally, described controller is connected on the coil 112 of magnetic clutch, is used for energising and the outage of control coil 112.
Wherein, described controller comprises: direct supply 1120 is used to coil 112 power supplies; With
Switch 1121 is used for energising and the outage of control coil 112.
Optionally, described controller also comprises insurance 1122, is used for protection magnetic clutch when the circuit et out of order of controller.
As mentioned above, the actuating device of of the present invention pair of hairdo fire extinguishing tanker has solved conventional two hairdo fire extinguishing tankers and has born the complexity that driving engine is connected with water pump by the coupling power takeoff, miscellaneous structure, the substitute is by installing magnetic clutch additional at the engine flywheel end and directly drive water pump, so that whether the running of water pump directly just can realize by automatically controlled button.
Description of drawings
Fig. 1 has shown the actuating device scheme drawing of conventional two hairdo fire extinguishing tankers;
Fig. 2 has shown the actuating device scheme drawing of of the present invention pair of hairdo fire extinguishing tanker;
Fig. 3 has shown the structural representation of the magnetic clutch of the embodiment of the invention;
Fig. 4 has shown the structural representation of the magnetic clutch of another embodiment of the present invention;
Fig. 5 has shown the detailed structure view of the rear-mounted engine actuating device of of the present invention pair of hairdo fire extinguishing tanker.
The specific embodiment
For making the purpose, technical solutions and advantages of the present invention more cheer and bright, below in conjunction with the specific embodiment and with reference to accompanying drawing, the present invention is described in more detail.Should be appreciated that these descriptions are exemplary, and do not really want to limit the scope of the invention.In addition, in the following description, omitted the description to known configurations and technology, to avoid unnecessarily obscuring concept of the present invention.
Fig. 1 has shown the actuating device scheme drawing of conventional two hairdo fire extinguishing tankers.
Conventional two hairdo fire extinguishing tankers adopt two interposed structures of being transported to, i.e. two driving engines in a chassis, and wherein a driving engine is that the chassis carries, and is used for driving car body and walks; Another driving engine adopts rearmounted backpack configuration, is exclusively used in the driving pump operation.
Only demonstrate among Fig. 1 for the backpack engine drive structure that drives water pump.As shown in Figure 1, the actuating device of conventional two hairdo fire extinguishing tankers comprises rear-engine 1, power takeoff 2, power-transfer clutch 3 and transmission shaft 4.
Rear-engine 1 is used for outputting power and drives water pump 5 runnings.
Power-transfer clutch 3 is arranged between driving engine 1 and the power takeoff 2, is used for engaging and disconnection between control power takeoff and the engine flywheel.Two hairdo fire extinguishing tankers of prior art adopt mechanical clutch usually, comprise pneumatic type clutch (utilizing gaseous tension to realize the power-transfer clutch folding) and Purely mechanical power-transfer clutch (only utilizing mechanical linkage structure to realize the power-transfer clutch folding), by the mode operated clutch of machinery, the realization power takeoff engages and disconnection with driving engine.
Therefore, traditional two hairdo fire extinguishing tankers are owing to adopted power takeoff and mechanical clutch, inevitably have following defective: (1) overall weight is large: for realizing this drive configuration, need the equipment of installation a lot, such as power-transfer clutch, power takeoff, Das Gaspedal assembly etc., wherein the weight of power takeoff is maximum, if add motor dead weight, whole rearmounted system net weight is about more than 2 tons; (2) axial dimension is large: because power-transfer clutch and power takeoff all are installed in engine flywheel end front side, become axial arranged with driving engine, and the size of power takeoff itself is also larger, causes the axial dimension of whole system very long after integrated, it is large to take up room, vehicle assembling difficulty; (3) probability of failure is high: because whole rearmounted AIR CONVECTOR TECH is comprised of a plurality of complex component, therefore, the position of et out of order can increase, and the probability that breaks down is corresponding increase also; (4) cost is high: conventional rearmounted AIR CONVECTOR TECH complex structure, constituent elements is many, causes holding at high price.
Fig. 2 has shown the actuating device scheme drawing of of the present invention pair of hairdo fire extinguishing tanker.
As shown in Figure 2, the actuating device of of the present invention pair of hairdo fire extinguishing tanker comprises driving engine 10, magnetic clutch 11 and transmission shaft 12.
Driving engine 10 is the backpack driving engine, is used for outputting power to drive pump operation, can select according to the shp of water pump the driving engine of appropriate power.
As seen, the complicated miscellaneous structure that the of the present invention pair of hairdo fire extinguishing tanker avoids adopting the power takeoff of existing fire extinguishing tanker rear-mounted engine to be connected with water pump, directly drive water pump by magnetic clutch, realize running and the stall control of water pump by automatically controlled button, thereby greatly simplified the structure of the actuating device of two hairdo fire extinguishing tankers, reduced the amount of parts that device needs.The electronic control structure is conducive to reduce equipment volume and weight than mechanical control structure, and the mode that simplifies the operation improves operational stability.
Fig. 3 has shown the structural representation of the magnetic clutch of the embodiment of the invention.
As shown in Figure 3, the magnetic clutch 11 for the two hairdo fire extinguishing tankers of the present invention comprises driving disc spacing pressing 110, clutch plate 111 and coil 112.The inboard of driving disc spacing pressing 110 (starting pusher side) is connected on the flywheel end face of driving engine, so that the rotation of engine flywheel can drive the rotation of driving disc spacing pressing, the outside of driving disc spacing pressing 110 (clutch plate side) is towards clutch plate 111.The outside that is arranged on driving disc spacing pressing 110 that clutch plate 111 is adjacent is so that its inboard and driving disc spacing pressing 110 gap d spaced apart.Clutch plate 111 is connected on the transmission shaft 12, so that the rotation of clutch plate 111 can drive the rotation of transmission shaft 12.Driving disc spacing pressing and clutch plate are installed on the centre rotational axis of driving engine in coaxial mode.Coil 112 is arranged on the outside of clutch plate 111, and is fixed on the wooden dipper shell component of magnetic clutch, is used for producing when energising electromagnetic coupled power.
Preferably, the driving disc spacing pressing of magnetic clutch, the surface that clutch plate is relative all are equipped with driving disc spacing pressing friction disc 1100 and clutch plate 1110, the surface treatment of friction disc becomes rough surface, is used for increasing engaging force when driving disc spacing pressing engages with clutch plate, so that the joint of the two rotation is more firm.Preferably, the surface of friction disc can be processed into the rough surface with decorative pattern or pattern.Further, the engaging tooth (for example zig-zag or column) of mutually interlock can be set on the surface of driving disc spacing pressing friction disc 1100 and clutch plate 1110, thereby further increase the engaging force of driving disc spacing pressing and clutch plate.
As shown in Figure 3, driving disc spacing pressing friction disc 1100 is fixedly connected on the driving disc spacing pressing 110 by spring 1101, spring 1101 is arranged to have contraction elasticity, elastic force is arranged to less than electromagnetic coupled power, so that when coupling energising friction disc 1100 contraction elasticity that can overcome spring be fitted on the friction disc 1110 of clutch plate, and in when outage so that can break away from the friction disc 1110 of clutch plate and return initial position under the elastic force effect of friction disc 1100 at spring, thereby so that driving disc spacing pressing engage with the clutch plate releasing.
In the embodiment shown in fig. 3, adopted coil spring, the quantity of spring and position can be set flexibly according to the parameter of magnetic clutch.For example, 5,6 even more spring can evenly be set along the periphery of driving disc spacing pressing.
Fig. 4 has shown the structural representation of the magnetic clutch of another embodiment of the present invention.
In magnetic clutch shown in Figure 4, along equally spaced exemplary 6 spring leafs 1101 that are provided with in driving disc spacing pressing surface, one end of each spring leaf (for example nearly center of circle end A end among the figure) is fixedly attached on the driving disc spacing pressing 110, and the other end (for example holding away from center of circle end B among the figure) is fixedly attached on the friction disc 1100.Spring leaf 1101 does not have deformation to initial condition, and this moment, friction disc 1100 clung on the driving disc spacing pressing 110.When coil 112 energising, friction disc 1100 moves and fits with the friction disc 1110 of clutch plate to the direction away from driving disc spacing pressing under the effect of electromagnetic force, so that spring leaf 1101 produces deformation, thus the pulling force that friction disc 1100 is produced towards driving disc spacing pressing; When coil 112 outage, electromagnetic force disappears, and friction disc 1100 relies on driving disc spacing pressing under the pulling force effect of spring leaf 1101, thereby breaks away from the friction disc 1110 of clutch plate.
Exemplaryly among Fig. 46 spring leafs have been shown, arrange along the driving disc spacing pressing even circumferential, but the present invention have been not restricted to this that quantity of spring and position can be set flexibly according to the parameter of magnetic clutch.
The below introduces the principle that drives water pump by magnetic clutch.
In addition, after magnetic clutch outage, coil magnetic force disappears, the friction disc in driving disc spacing pressing outside resilience and separate with the friction disc of clutch plate under the effect of spring leaf, thus having cut off being connected of driving engine and transmission shaft, the termination power transmission shuts down water pump.
In use, the operator only needs the break-make by operation external power supply button just can realize the operation of water pump and stops, and is simple to operation.
From foregoing description as can be known, the power of driving engine output mainly the driving disc spacing pressing by magnetic clutch and clutch plate applying with separate to realize.As mentioned above, be arranged to gap d spaced apart between clutch plate and the driving disc spacing pressing.In the situation that other parameters such as electric power of magnetic clutch are determined, the size of this clearance distance can have influence on starting, the running of magnetic clutch, the reliability of shut-down operation.The too small meeting in gap causes the power-transfer clutch loaded starting, and cranking torque is large, and consumption of power is many, and may cause outage to separate inefficacy.Excessive clearance can cause energising engage to be lost efficacy, and causes the water pump can't normal starting, and perhaps pump operation off and on.Therefore, it is important for the normal operation that guarantees power-transfer clutch to arrange and control well the driving disc spacing pressing of magnetic clutch and the clearance distance between the clutch plate.
In the practical set process, can and control this gap by supporting frock and kind of calliper.In a preferred embodiment of the invention, preferably this gap length is arranged in the 0.7-1mm scope, can guarantees the normal effectively work of magnetic clutch.
Fig. 5 has shown the detailed structure view of the rear-mounted engine actuating device of of the present invention pair of hairdo fire extinguishing tanker.
As shown in Figure 5, the rear-mounted engine of of the present invention pair of hairdo fire extinguishing tanker is coupled on the transmission shaft by magnetic clutch, thereby only by the direct control engine of folding of magnetic clutch and the transmission of power between the transmission shaft.Two hairdo fire extinguishing tankers with respect to prior art do not need to adopt bulky, heavy power takeoff and mechanical clutch, have simplified drive configuration and type of drive, and so that the driving of water pump operates more stability and high efficiency.
Fig. 5 also shows the controller of magnetic clutch of the present invention, and the controller of magnetic clutch is used for joint and the disconnection of control magnetic clutch.Specifically, controller is connected on the coil 112 of magnetic clutch, is used for energising and the outage of control coil 112.As shown in Figure 5, this controller comprises direct supply 1120 and switch 1121.Direct supply preferably adopts the 24V direct supply, is used to coil power supply.The automatically controlled button of switch 1121 preferred employings is used for energising and outage that the operator controls magnetic clutch (coil) at any time, and then running and the stall of control water pump.Preferably, also be provided with insurance 1122 in direct supply 1,120 one sides of controller, preferably adopt 10 amperes insurance, be used for timely and effective protection power-transfer clutch when the circuit et out of order of controller.
With respect to prior art, rear-mounted engine actuating device according to of the present invention pair of hairdo fire extinguishing tanker has following obvious advantage: (1) is simple in structure: the core component of motivation package actuating device only comprises magnetic clutch, simple in structure, be easy to convenient operation is installed; (2) reliability is high: because simple in structure, principle is clear, and the package unit rate of breakdown is low, and reliability is high; (3) lightweight: with respect to the Power Drive Unit of above-mentioned routine, by driving water pump with magnetic clutch, a whole set of AIR CONVECTOR TECH can alleviate nearly 800 kilograms; (4) oad is little: with respect to the Power Drive Unit of above-mentioned routine, use magnetic clutch instead after, axial dimension only on original engine flywheel end face basis, extend forward 135.5mm, and the corresponding data of conventional apparatus is about 900mm; (5) cost is low: the use of magnetic clutch simplifies the structure greatly, has reduced cost, and the manufacturing cost of traditional power-driven system is at least about more than 120,000, and Power Drive Unit of the present invention can be saved cost more than at least 1.7 ten thousand.
Should be understood that the above-mentioned specific embodiment of the present invention only is used for exemplary illustration or explains principle of the present invention, and is not construed as limiting the invention.Therefore, any modification of in situation without departing from the spirit and scope of the present invention, making, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.In addition, claims of the present invention are intended to contain whole variations and the modification in the equivalents that falls into claims scope and border or this scope and border.
Claims (10)
1. the actuating device of two hairdo fire extinguishing tankers is used for outputting power and drives pump operation, and described device comprises:
Driving engine (10) is used for outputting power and drives pump operation;
Magnetic clutch (11) is connected between described driving engine (10) and the transmission shaft (12), is used for engaging and disconnection of control control engine and transmission shaft; With
Transmission shaft (12) is connected between described magnetic clutch (11) and the water pump, and the transmission of power feed pump that is used for described driving engine (10) is exported is to drive pump operation.
2. actuating device according to claim 1, described magnetic clutch (11) comprising:
Driving disc spacing pressing (110), the inboard of this driving disc spacing pressing are connected on the flywheel end face of driving engine (10);
Clutch plate (111), the adjacent outside that is arranged on described driving disc spacing pressing is so that the inboard of this clutch plate and this driving disc spacing pressing gap spaced apart; With
Coil (112) is fixedly installed on the wooden dipper shell component in described clutch plate (111) outside, is used for producing when energising electromagnetic coupled power.
3. actuating device according to claim 2, described driving disc spacing pressing (110) is separately installed with friction disc (1100) and friction disc (1110) with the relative side of clutch plate (111), and the surface treatment of described friction disc becomes rough surface.
4. actuating device according to claim 3, the friction disc (1100) of described driving disc spacing pressing (110) is fixedly attached on the driving disc spacing pressing (110) by spring (1101) so that electromagnetic coupled power when disappearing friction disc (1100) under the elastic force effect of spring, break away from the friction disc (1110) of clutch plate.
5. actuating device according to claim 3 is provided with the engaging tooth of mutual interlock on the surface of described friction disc (1100,1110).
6. each described actuating device according to claim 1-5, described clutch plate (111) is captiveed joint with described transmission shaft (12), so that the rotation of described clutch plate can drive the rotation of this transmission shaft.
7. each described actuating device according to claim 1-5, described driving disc spacing pressing (110) and clutch plate (111) are installed on the centre rotational axis of driving engine in coaxial mode.
8. each described actuating device according to claim 1-5, described gap length is arranged in the 0.7-1mm scope.
9. each described actuating device according to claim 1-5, described magnetic clutch (11) also comprises controller, is used for joint and the disconnection of control magnetic clutch.
10. actuating device according to claim 9, described controller is connected on the coil (112) of magnetic clutch, be used for energising and the outage of control coil (112), described controller comprises: direct supply (1120) is used to coil (112) power supply; And switch (1121), being used for energising and the outage of control coil (112), described controller also comprises insurance (1122), is used for protection magnetic clutch when the circuit et out of order of controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN2012104277527A CN102963250A (en) | 2012-10-31 | 2012-10-31 | Driving device of twin-engine type fire truck |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104277527A CN102963250A (en) | 2012-10-31 | 2012-10-31 | Driving device of twin-engine type fire truck |
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| CN102963250A true CN102963250A (en) | 2013-03-13 |
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| CN2012104277527A Pending CN102963250A (en) | 2012-10-31 | 2012-10-31 | Driving device of twin-engine type fire truck |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399214A (en) * | 2014-12-12 | 2015-03-11 | 衢州市华夏专用汽车有限公司 | High-pressure fine water mist fire vehicle |
| CN106474644A (en) * | 2016-12-02 | 2017-03-08 | 三汽车制造有限公司 | Water tower fire truck |
| CN106931002A (en) * | 2015-12-31 | 2017-07-07 | 中国国际海运集装箱(集团)股份有限公司 | Two way ferry bus latch bridge hydraulic system |
| CN108704233A (en) * | 2018-08-09 | 2018-10-26 | 山东理工大学 | Multi-function light fire fighting truck |
| CN111265806A (en) * | 2020-03-01 | 2020-06-12 | 北京中卓时代消防装备科技有限公司 | Positive pressure B-type foam liquid supply system and method for fire fighting truck |
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| CN2721692Y (en) * | 2004-03-18 | 2005-08-31 | 河南省高远公路养护技术有限公司 | Transmission device of main hydraulic pump for asphalt spraying vehicle |
| CN201310567Y (en) * | 2008-10-15 | 2009-09-16 | 浙江日丰机械有限公司 | Electromagnetic clutch |
| CN201546976U (en) * | 2009-12-03 | 2010-08-11 | 江苏悦达专用车有限公司 | Control device for connecting high-pressure water pump |
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| CN2721692Y (en) * | 2004-03-18 | 2005-08-31 | 河南省高远公路养护技术有限公司 | Transmission device of main hydraulic pump for asphalt spraying vehicle |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104399214A (en) * | 2014-12-12 | 2015-03-11 | 衢州市华夏专用汽车有限公司 | High-pressure fine water mist fire vehicle |
| CN106931002A (en) * | 2015-12-31 | 2017-07-07 | 中国国际海运集装箱(集团)股份有限公司 | Two way ferry bus latch bridge hydraulic system |
| CN106931002B (en) * | 2015-12-31 | 2018-10-23 | 中国国际海运集装箱(集团)股份有限公司 | Two way ferry bus latch bridge hydraulic system |
| CN106474644A (en) * | 2016-12-02 | 2017-03-08 | 三汽车制造有限公司 | Water tower fire truck |
| CN108704233A (en) * | 2018-08-09 | 2018-10-26 | 山东理工大学 | Multi-function light fire fighting truck |
| CN111265806A (en) * | 2020-03-01 | 2020-06-12 | 北京中卓时代消防装备科技有限公司 | Positive pressure B-type foam liquid supply system and method for fire fighting truck |
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Application publication date: 20130313 |