CN201914076U

CN201914076U - Crane and radiating system thereof

Info

Publication number: CN201914076U
Application number: CN2010206888733U
Authority: CN
Inventors: 李丽; 吴高腾; 冯海飞; 孙建华
Original assignee: Xuzhou Heavy Machinery Co Ltd
Current assignee: Xuzhou Heavy Machinery Co Ltd
Priority date: 2010-12-29
Filing date: 2010-12-29
Publication date: 2011-08-03
Anticipated expiration: 2020-12-29

Abstract

The utility model discloses a radiating system of a power system of a crane, which comprises a radiating device (11) and a power device. The radiating device (11) is arranged on a frame (21), the power device drives a fan of the radiating device (11) to operate, and an air opening of the radiating device (11) faces towards the frame (21) perpendicularly. When the radiating device (11) operates, an air inlet and outlet channel is perpendicular without blockage of obstacles, the air channel is smooth with lower resistance and difficult to form hot air reflow, and radiating area of the radiating device (11) can be sufficiently utilized. Accordingly, the radiating system is better in radiating capacity, can improve radiating efficiency, is simple in design and flexible in arrangement and saves utilization cost. The utility model further discloses the crane comprising the radiating system.

Description

A kind of hoisting crane and cooling system thereof

Technical field

The utility model relates to the hoisting crane technical field, particularly a kind of cooling system of hoisting crane.In addition, the utility model also relates to the hoisting crane that comprises above-mentioned cooling system.

Background technology

The power system work acting of hoisting crane can produce a large amount of heats, its operating temperature is raise, operating temperature raises will influence the normal operation of dynamical element, and the hoisting crane tonnage is big more, dynamic system power is high more, the heat that produces is also many more, and is also corresponding big more to the harm of dynamical element.

Therefore, in order to guarantee the normal operation of dynamical element, cooling system need be set on hoisting crane be used for dispelling the heat to power system.

Please refer to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of a kind of representative type hoisting crane cooling system in the prior art; Fig. 2 is the principle of work scheme drawing of cooling system shown in Figure 1.

When the power system of prior art is arranged, driving engine 3 is generally positioned on the vehicle frame 4 behind the operator's compartment, as shown in Figure 1, first radiator 1 is arranged between operator's compartment and the driving engine 3, vertical installation, the fan of radiator is generally the air draught type fan, during 1 work of first radiator, driving engine 3 bent axles directly or indirectly drive the rotation of air draught type fan, fan is inhaled inswept first radiator 1 of cold air of coming, take away the flow through water of first radiator 1 and the heat of supercharged air, hot air is discharged from driving engine 3 both sides and bottom, forms air flow system.

Because the restriction of first radiator, 1 installing space, its area can not infinitely increase, therefore, for the bigger hoister in large tonnage of power ratio, also comprise additional cooler 2 in the cooling system, generally be installed in the appropriate location of car load, increase the heat dissipation capacity of cooling system, improve radiating effect.

The hoisting crane tonnage is big more, the power of driving engine 3 is big more, the power of first radiator 1 is also just big more in the cooling system, the corresponding also corresponding increase of its dissipating area, still, first radiator 1 is arranged at the operator's compartment back in the prior art, its a part of dissipating area is blocked by operator's compartment, air intake passage is obstructed, and dissipating area is not fully utilized, thereby makes radiating effect poor.

And when driving engine 3 sides, because engine nacelle 5 exhaust passages are not smooth, resistance of exhaust will increase through the higher windstream of the temperature of radiator, and in engine nacelle, the air that temperature is high can not get timely discharge; Engine nacelle 5 is not tight with the radiator peripheric sealing, cause hot air reflow easily, the low air themperature of temperature of operator's compartment side is raise, and the air ratio that temperature is high is easier to be inhaled the continuation of coming as the heat-dissipation medium by fan, has further influenced the radiating effect of driving engine 3.

Therefore, how to improve the structure of hoisting crane cooling system, make cooling system have heat-sinking capability preferably, improve radiating efficiency, and simplicity of design, flexible arrangement, save use cost, be those skilled in the art's problem demanding prompt solutions.

The utility model content

The purpose of this utility model aims to provide a kind of cooling system of hoisting crane, and it has heat-sinking capability preferably, can improve radiating efficiency, and simplicity of design, flexible arrangement, saves use cost.Another purpose of the present utility model aims to provide a kind of hoisting crane that comprises above-mentioned cooling system.

For solving the problems of the technologies described above, the utility model provides a kind of cooling system of crane power system, comprise the engine installation that is arranged at the heat abstractor on the vehicle frame and drives the fan work of described heat abstractor, the air port of described heat abstractor is towards perpendicular to described vehicle frame setting.

Preferably, the lateral wall of described vehicle frame is provided with overhanging crossbeam, and described heat abstractor is arranged on the described crossbeam.

Preferably, the bottom of described heat abstractor is provided with mounting bracket, and described mounting bracket has box-structure, and described heat abstractor connects described crossbeam by described mounting bracket.

Preferably, the described engine installation Hydraulic Pump that comprises HM Hydraulic Motor and drive described HM Hydraulic Motor; The oil inlet of described Hydraulic Pump is communicated with the oil outlet of fuel tank, and its oil outlet is communicated with the oil inlet of described HM Hydraulic Motor, and the oil outlet of described HM Hydraulic Motor is communicated with the return opening of described fuel tank.

Preferably, described number of fans is two, and the quantity of described HM Hydraulic Motor also is two, and drives two described fans respectively, described Hydraulic Pump drives two described HM Hydraulic Motor by flow divider valve, and the oil outlet of two described HM Hydraulic Motor all is communicated with the return opening of described fuel tank.

Preferably, described engine installation also comprises by pass valve, and the oil inlet of described by pass valve is communicated with the oil outlet of described Hydraulic Pump, and its oil outlet is communicated with the return opening of described fuel tank.

Preferably, described Hydraulic Pump is by the engine drive of described hoisting crane.

A kind of hoisting crane provided by the utility model comprises above-mentioned each described cooling system.

Preferably, be specially full hair style hoisting crane.

The utility model provides a kind of cooling system of crane power system, comprises the engine installation that is arranged at the heat abstractor on the vehicle frame and drives the fan work of described heat abstractor, and the air port of described heat abstractor is towards being parallel to described vehicle frame setting.

The air port of heat abstractor is towards perpendicular to the vehicle frame setting in the utility model, corresponding fan is parallel to the vehicle frame setting, during heat abstractor work, the action of engine installation drive fan, cold air is under the effect of fan, the heat abstractor of flowing through from top to bottom or from bottom to top, thereby the engine coolant and the charge-air cooling cooling of giving the heat abstractor of flowing through.

During cooling system work, turnover wind passage is a vertical direction, turnover wind passage clear, and turnover wind passage is unobstructed, and resistance is less, is not easy to cause hot air reflow, and radiating effect is relatively good; And the dissipating area of heat abstractor can make full use of, and radiating effect further improves.

A kind of preferred embodiment in, the lateral wall of described vehicle frame is provided with overhanging crossbeam, described heat abstractor is arranged on the described crossbeam, and between the air outlet of the air outlet of described heat abstractor and the driving engine of described hoisting crane dividing plate is set, described dividing plate is arranged on the diapire of described vehicle frame.

Heat abstractor is arranged at the vehicle frame outside, enlarged the installing space of heat abstractor, hydrodynamic retarder is set on hoister in large tonnage, when needing heat radiation power big, the dissipating area that can further increase heat abstractor gets final product, needn't increase additional cooler again, can reduce cost, simplify the circuit design of cooling system; Dividing plate can be isolated the air-out passage and the used air circulation duct of heat abstractor of engine nacelle, and the high temperature air that has reduced to start pusher side has further improved radiating effect to the employed air influence of dispelling the heat.

Description of drawings

Fig. 1 is the structural representation of a kind of representative type hoisting crane cooling system in the prior art;

Fig. 2 is the principle of work scheme drawing of cooling system shown in Figure 1;

Fig. 3 is a kind of structural representation of the specific embodiment of the cooling system of hoisting crane provided by the utility model;

Fig. 4 is that the installation of heat abstractor in the cooling system shown in Figure 3 concerns scheme drawing;

Fig. 5 is the exploded view of heat abstractor in the cooling system shown in Figure 3;

Fig. 6 is the principle of work scheme drawing of cooling system shown in Figure 3.

Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 1 to Fig. 2:

1 first radiator; 2 additional coolers; 3 driving engines; 4 vehicle frames; 5 engine nacelles.

Wherein, the corresponding relation between Reference numeral and the component names is among Fig. 3 to Fig. 6:

11 heat abstractors; 111 heat radiator assemblies; 112 mounting brackets; 113 grille guards; 114 attaching partss; 12 HM Hydraulic Motor; 13 Hydraulic Pumps; 14 fuel tanks; 15 flow divider valves; 16 return filters; 17 by pass valves; 18 driving engines; 20 hydrodynamic retarders; 21 vehicle frames; 211 crossbeams; 212 dividing plates; 22 engine nacelles.

The specific embodiment

Core of the present utility model aims to provide a kind of cooling system of hoisting crane, and it has reasonable heat-sinking capability, can improve radiating efficiency, and simplicity of design, flexible arrangement, saves use cost.Another core of the present utility model aims to provide a kind of hoisting crane that comprises above-mentioned cooling system.

In order to make those skilled in the art understand the technical solution of the utility model better, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.

Please refer to Fig. 3 to Fig. 6, Fig. 3 is a kind of structural representation of the specific embodiment of the cooling system of hoisting crane provided by the utility model; Fig. 4 is that the installation of heat abstractor in the cooling system shown in Figure 3 concerns scheme drawing; Fig. 5 is the exploded view of heat abstractor in the cooling system shown in Figure 3; Fig. 6 is the principle of work scheme drawing of cooling system shown in Figure 3.

In a kind of specific embodiment, the cooling system of a kind of crane power system provided by the utility model, comprise heat abstractor 11 that is arranged on the vehicle frame 21 and the engine installation that drives the fan work of heat abstractor 11, the propulsion source of this engine installation can be from the driving engine 18 of hoisting crane, also can be from the independent actuating unit that is provided with, motor etc. for example; The air port of heat abstractor 11 is towards being provided with perpendicular to vehicle frame 21.

The air intake direction of heat abstractor 11 is provided with perpendicular to vehicle frame 21 in the utility model, corresponding fan also is parallel to vehicle frame 21 and is provided with, during cooling system work, the action of engine installation drive fan, cold air is under the effect of fan, the heat abstractor 11 of flowing through from top to bottom or from bottom to top, thus will flow through heat abstractor 11 in-to-in engine coolants and charge-air cooling cooling.

During cooling system work, turnover wind passage is a vertical direction, and clear stops that turnover wind is unobstructed on the turnover wind passage, and resistance ratios is less, is not easy to cause hot air reflow, and radiating effect is relatively good; And the surperficial clear of heat abstractor 11 hides, and dissipating area can make full use of, and radiating effect further improves.

As shown in Figure 3 and Figure 4, in a kind of specific embodiment, heat abstractor 11 can be installed in the outside of vehicle frame 21, overhanging crossbeam 211 can be set on the lateral wall of vehicle frame 21, heat abstractor 11 is arranged on the crossbeam 211, connection mode between heat abstractor 11 and the crossbeam 211 can also can need only and guarantee the reliable and stable of heat abstractor 11 installations by the 3rd attaching parts realization connection between the two by direct connection.

Heat abstractor 11 is arranged at vehicle frame 21 outsides, enlarged the installing space of heat abstractor 11, hydrodynamic retarder 20 is set on hoister in large tonnage, when heat radiation power is bigger, can further increase the dissipating area of heat abstractor 11, do not need to increase additional cooler, can reduce cost, and simplify the circuit design of cooling system; And the turnover wind passage of heat abstractor 11 is also more unobstructed, helps improving the radiating effect of heat abstractor 11.

It is to be noted, all can there be multiple mode mounting means and installation site between heat abstractor 11 and the vehicle frame 21, not only are confined to description herein, are to be understood that, including, but not limited to embodiment herein, as long as can realize technique effect of the present utility model.

Driving engine 18 in the course of the work, self will produce a large amount of heats, the temperature of the air of engine nacelle 22 air-out passages is accordingly also than higher, and the position of heat abstractor 11 is closer apart from engine nacelle 22, above-mentioned high temperature air can influence the lower air of heat abstractor 11 employed temperature, influences the radiating effect of heat abstractor 11.

As shown in Figure 5, the heat abstractor in the various embodiments described above 11 can comprise the attaching parts 114 of heat radiator assembly 111, mounting bracket 112, grille guard 113 and grille guard 113 and heat radiator assembly 111; Air outlet place at heat abstractor 11 is provided with mounting bracket 112, and heat abstractor 11 can be fixed on the crossbeam 211 by the mounting bracket 112 of its bottom.

Mounting bracket 112 can be set to box, and the air through heat radiator assembly 111 flows out from the box inner chamber.

Mounting bracket 112 not only plays good supporting role to heat abstractor 11, and its box-structure can also isolate the air-out passage of engine nacelle 22 and heat abstractor 11 used air circulation duct, has improved the radiating effect of heat abstractor 11.

Grille guard 113 is installed on the ventilation inlet place, main to entering the air filtration of heat radiator assembly 111, usually, the edge of the fixed frame of grille guard 113 is connected with the side of engine nacelle 22, utilize the shell of engine nacelle 22, hot air in heat transmission air and the driving engine 18 is isolated, make heat abstractor 11 have better radiating effect.

Therefore, between the air outlet of the driving engine 18 of the air outlet of heat abstractor 11 and hoisting crane dividing plate 212 can also be set further, dividing plate 212 can be by being welded to connect on the diapire of vehicle frame 21.

Dividing plate 212 just can be isolated the air-out passage and the heat abstractor 11 used air circulation duct of engine nacelle 22 further like this, and the high temperature air that has reduced driving engine 18 sides has further improved radiating effect to the employed air influence of dispelling the heat.

Particularly, above-mentioned engine installation can comprise HM Hydraulic Motor 12 and the Hydraulic Pump 13 that drives HM Hydraulic Motor 12; Hydraulic Pump 13 can be driven by the driving engine 18 of hoisting crane, and the driving engine 18 of hoisting crane starts, and cooling system is also started working simultaneously; Device such as motor also can be set independently drive, this moment, propulsion source was independent, was not subjected to the influence of crane operating status; The oil inlet of Hydraulic Pump 13 is communicated with the oil outlet of fuel tank 14, and the oil inlet of its oil outlet connection HM Hydraulic Motor 12, and the oil outlet of HM Hydraulic Motor 12 is communicated with the return opening of fuel tank 14.

During cooling system work, Hydraulic Pump 13 rotations, under atmospheric effect, hydraulic oil enters Hydraulic Pump 13 in the fuel tank 14, pump out high pressure oil, high pressure oil is flowed to HM Hydraulic Motor 12, drive HM Hydraulic Motor 12 and rotate through pipeline, thereby HM Hydraulic Motor 12 drives connected fan rotation, and then drives heat abstractor 11 work.

Hydraulic-driven work is compared steadily, and can realize the work of more high-power heat abstractor 11, and the hydraulic oil source that can use hoisting crane self is simple in structure as drive source, more convenient.

The radiating effect of the heat abstractor 11 in the utility model is relatively good, and the cooling system position can compare flexibly, on the basis that does not influence radiating effect, for the bigger hoisting crane of power ratio, can adopt the bigger heat abstractor of dissipating area 11, the heat abstractor 11 that promptly windy fan drives.

Further, the number of fans of cooling system can be two, and the quantity of HM Hydraulic Motor 12 is corresponding in the engine installation also can be two, and drives two fans respectively, Hydraulic Pump 13 is communicated with the return opening of fuel tank 14 by the oil outlet that flow divider valve 15 drives two HM Hydraulic Motor, 12, two HM Hydraulic Motor 12.

Flow divider valve 15 such as can use at flow-type flow divider valve 15, Hydraulic Pump 13 is carried two HM Hydraulic Motor 12 of giving of the hydraulic oil quantitative and even of coming; Also can be according to the actual operating needs of radiator, selection percentage flow-type flow divider valve 15, flow divider valve 15 can be realized the synchronous working of the different elements in the hydraulic.

Use same Hydraulic Pump 13 to drive two HM Hydraulic Motor 12, make two HM Hydraulic Motor 12 start or stop work simultaneously, help work synchronism with HM Hydraulic Motor 12 bonded assemblys two fans, thereby it is even to help flow through its heat radiation of driving engine 18 refrigerant fluids of 11 pairs of heat abstractors, and two HM Hydraulic Motor 12 are driven by a Hydraulic Pump 13, can save cost.

Further, engine installation can also comprise by pass valve 17, and the oil inlet of by pass valve 17 is communicated with the oil outlet of Hydraulic Pump 13, and its oil outlet is communicated with the return opening of fuel tank 14, by pass valve 17 can play stable hydraulic oil circuit operation pressure, guarantees the effect of job security.

Further, the oil inlet place of Hydraulic Pump 13 can be provided with the oil-feed filter screen, filters the hydraulic oil that enters in the Hydraulic Pump 13, avoids impurity to enter the pump housing and causes obstruction, can reduce the wearing and tearing of Hydraulic Pump 13 inner bodies, prolongs the service life of Hydraulic Pump 13.

Equally, also return filter 16 can be set, avoid impurity to enter fuel tank 14 at the return opening place of fuel tank 14.

Further, for further filtering the impurity of hydraulic oil in the fuel tank 14, the sky filter can be set.

Further, described Hydraulic Pump 13 can be driven by the driving engine 18 of described hoisting crane.

Adopt the propulsion source of the driving engine 18 of hoisting crane as Hydraulic Pump 13, this method need not increase extra power, and this scenario-frame is simple, and cost is lower

Particularly, the Hydraulic Pump 13 in the various embodiments described above can be fix-displacement pump, and its price comparison is cheap, and use cost is lower.

The utility model also provides a kind of hoisting crane, and this hoisting crane has above-mentioned cooling system, because above-mentioned cooling system has above-mentioned technique effect, the hoisting crane with this cooling system also should have the corresponding techniques effect.

Particularly, above-mentioned hoisting crane can be full hair style hoisting crane.

More than a kind of hoisting crane provided by the utility model and cooling system thereof are described in detail.Used specific case herein principle of the present utility model and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present utility model and core concept thereof.Should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model principle, can also carry out some improvement and modification to the utility model, these improvement and modification also fall in the protection domain of the utility model claim.

Claims

1. the cooling system of a crane power system, comprise heat abstractor (11) that is arranged on the vehicle frame (21) and the engine installation that drives the fan work of described heat abstractor (11), it is characterized in that the air port of described heat abstractor (11) is towards being provided with perpendicular to described vehicle frame (21).

2. the cooling system of hoisting crane as claimed in claim 1 is characterized in that, the lateral wall of described vehicle frame (21) is provided with overhanging crossbeam (211), and described heat abstractor (11) is arranged on the described crossbeam (211).

3. the cooling system of hoisting crane as claimed in claim 2, it is characterized in that, the bottom of described heat abstractor (11) is provided with mounting bracket (112), described mounting bracket (112) has box-structure, and described heat abstractor (11) connects described crossbeam (211) by described mounting bracket (112).

4. the cooling system of hoisting crane as claimed in claim 3 is characterized in that, the Hydraulic Pump (13) that described engine installation comprises HM Hydraulic Motor (12) and drives described HM Hydraulic Motor (12); The oil inlet of described Hydraulic Pump (13) is communicated with the oil outlet of fuel tank (14), and its oil outlet is communicated with the oil inlet of described HM Hydraulic Motor (12), and the oil outlet of described HM Hydraulic Motor (12) is communicated with the return opening of described fuel tank (14).

5. the cooling system of hoisting crane as claimed in claim 4, it is characterized in that, described number of fans is two, the quantity of described HM Hydraulic Motor (12) also is two, and drive two described fans respectively, described Hydraulic Pump (13) drives two described HM Hydraulic Motor (12) by flow divider valve (15), and the oil outlet of two described HM Hydraulic Motor (12) all is communicated with (14) return opening of described fuel tank.

6. the cooling system of hoisting crane as claimed in claim 5, it is characterized in that, described engine installation also comprises by pass valve (17), and the oil inlet of described by pass valve (17) is communicated with the oil outlet of described Hydraulic Pump (13), and its oil outlet is communicated with the return opening of described fuel tank (14).

7. the cooling system of hoisting crane as claimed in claim 6 is characterized in that, described Hydraulic Pump (13) is driven by the driving engine (18) of described hoisting crane.

8. a hoisting crane comprises power system and is used for described power system heat-dissipation cooling system, it is characterized in that, described cooling system is each described cooling system of claim 1 to 7.

9. hoisting crane as claimed in claim 8 is characterized in that, is specially full hair style hoisting crane.