CN215590498U

CN215590498U - Crane range extender, crane power system and crane

Info

Publication number: CN215590498U
Application number: CN202120117543.7U
Authority: CN
Inventors: 王志浩; 史建明; 李恒
Original assignee: Sany America Inc
Current assignee: Sany America Inc
Priority date: 2021-01-14
Filing date: 2021-01-14
Publication date: 2022-01-21
Anticipated expiration: 2031-01-14

Abstract

The utility model provides a crane range extender, a crane power system and a crane, and relates to the technical field of engineering equipment, wherein the crane range extender comprises an engine, a generator and a controller, wherein a rotating shaft of the generator is connected with a rotating shaft of the engine and is suitable for generating electricity under the driving of the engine; the controller is respectively electrically connected with a battery and a load, the battery is electrically connected with the load and is suitable for controlling the generator to charge the battery or drive the load to work. The crane range extender provided by the utility model effectively solves the problem of short mileage of a pure electric vehicle, and the engine drives the generator to rotate to generate electricity, so that the generated electricity can charge a vehicle power battery and can directly drive a load to work. Zero emission and zero pollution can be realized by adopting the range extender with clean fuel in a pure electric mode.

Description

Crane range extender, crane power system and crane

Technical Field

The utility model relates to the technical field of engineering equipment, in particular to a crane range extender, a crane power system and a crane.

Background

The domestic mobile crane mostly adopts a diesel engine as power, and the traditional gasoline and diesel vehicles are difficult to meet the requirements of people on more economy and more environmental protection along with the consideration of the people on the aspects of environmental protection, economy and the like. Although mobile cranes using batteries as power also appear in the market, mobile cranes using batteries as power have the problem of short endurance mileage and are difficult to meet actual use requirements.

SUMMERY OF THE UTILITY MODEL

The utility model provides a crane range extender, a crane power system and a crane, which are used for solving the problem that a mobile crane adopting a battery as power in the prior art has short endurance mileage.

The utility model provides a crane range extender, which comprises:

an engine;

the rotating shaft of the generator is connected with the rotating shaft of the engine and is suitable for generating electricity under the driving of the engine;

the controller is respectively electrically connected with the battery, the generator and the load, the battery is electrically connected with the load and is suitable for controlling the generator to charge the battery and/or drive the load to work.

According to the crane range extender provided by the utility model, the engine is a methanol engine.

According to the crane range extender provided by the utility model, the load is a driving motor.

According to the crane range extender provided by the utility model, the crane range extender further comprises: and the electric quantity detection module is respectively electrically connected with the controller and the battery.

According to the crane range extender provided by the utility model, the crane range extender further comprises: the display screen is electrically connected with the controller.

According to the crane range extender provided by the utility model, the engine, the generator and the controller are integrated into a whole.

According to the crane range extender provided by the utility model, the battery is a lead-acid battery, a lithium ion battery or a nickel-hydrogen battery.

The utility model also provides a crane power system which comprises a battery and a plurality of driving motors, and the crane power system further comprises the crane range extender.

The utility model also provides a crane, which comprises a crane main body and further comprises the crane power system, wherein the crane power system is arranged on the crane main body.

The crane range extender provided by the utility model effectively solves the problem of short mileage of a pure electric vehicle, and the engine drives the generator to rotate to generate electricity, so that the generated electricity can charge a vehicle power battery and can directly drive a load to work. Zero emission and zero pollution can be realized by adopting the range extender with clean fuel in a pure electric mode.

Drawings

In order to more clearly illustrate the technical solutions of the present invention or the prior art, the drawings needed for the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and those skilled in the art can also obtain other drawings according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a crane range extender provided by the utility model.

Reference numerals:

100. a crane range extender; 110. an engine; 120. a generator; 130. a controller; 200. a battery; 300. the motor is driven.

Detailed Description

The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the utility model but are not intended to limit the scope of the utility model.

In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the embodiments of the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the embodiments of the present invention, it should be noted that, unless explicitly stated or limited otherwise, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. Specific meanings of the above terms in the embodiments of the present invention can be understood in specific cases by those of ordinary skill in the art.

In embodiments of the utility model, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of an embodiment of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Fig. 1 illustrates a schematic structural diagram of a crane range extender, and as shown in fig. 1, the crane range extender 100 includes an engine 110, a generator 120 and a controller 130, the engine 110 drives the generator 120 to rotate, in this embodiment, the engine 110 is a methanol engine, and the methanol engine uses methanol as a fuel, so that the methanol combustion speed is high, the combustion is more sufficient, and the probability of generating particulate matters and soot is greatly reduced. The use of methanol helps to reduce the emission of harmful gases, reduces the pollution to the atmosphere and helps to protect the environment.

The rotating shaft of the generator 120 is connected with the rotating shaft of the engine 110, and the generator 120 is suitable for generating electricity under the driving of the engine 110. The controller 130 is electrically connected with the battery 200, the generator 120 and the load respectively, the battery 200 is electrically connected with the load, and the controller 130 is suitable for controlling the generator 120 to charge the battery 200 and/or drive the load to work. The battery 200 is a lead-acid battery, a lithium ion battery or a nickel-metal hydride battery, preferably a lithium ion battery, the lithium ion battery has the advantages of large energy density and long service life, the cycle number generally can reach more than 500 times, even more than 1000 times, and the cycle number of the lithium iron phosphate can reach more than 2000 times.

The crane range extender 100 provided by the utility model effectively solves the problem of short mileage of a pure electric vehicle, the generator 120 is driven by the engine 110 to rotate to generate electricity, and the generated electricity can charge the vehicle power battery 200 and can directly drive a load to work. Zero emission and zero pollution can be realized by adopting the range extender with clean fuel in a pure electric mode.

It should be noted that the range extender can be used not only for cranes, but also for other engineering vehicles.

According to the embodiment of the present invention, the load in this embodiment is the driving motor 300, but may also be other devices that need power supply, and the driving motor 300 is used for driving the crane to travel, hoisting goods, and the like. In operation, the controller 130 will select the following modes according to the relevant control logic parameters such as load:

(a) the generator 120 charges the power battery 200, and in this mode, the crane performs low-load operations such as hook lifting and hook turning and idle turning, and the drive motor 300 is turned by the power supplied from the battery 200.

(b) The generator 120 directly supplies power to the driving motor 300, and the driving motor 300 performs operations such as hoisting, traveling, and luffing, and the crane performs medium and high load operations in this mode.

(c) And simultaneously performing a and b operations, wherein the mode is between a and b.

According to an embodiment of the present invention, the crane range extender 100 further includes an electric quantity detection module and a display screen, the electric quantity detection module is electrically connected to the controller 130 and the battery 200, respectively, and the display screen is electrically connected to the controller 130. The electric quantity detection module is used for detecting the electric quantity of the battery 200 and sending the electric quantity information of the battery 200 to the controller 130, and the controller 130 flexibly selects the working mode according to the electric quantity information of the battery 200.

According to the embodiment of the utility model, the engine 110, the generator 120 and the controller 130 are integrated into a whole in the embodiment, and the above devices are integrated into a whole, which is beneficial to reducing the volume of the power system and realizing modular installation.

The utility model also provides a crane power system, which comprises a battery 200, a plurality of driving motors 300 and the crane range extender 100, wherein the controller 130 is respectively electrically connected with the battery 200 and the driving motors 300, and the battery 200 is electrically connected with the driving motors 300.

The utility model also provides a crane, which comprises a crane main body and further comprises the crane power system, wherein the crane power system is arranged on the crane main body. The crane can remarkably improve the cruising ability of the crane by using the range extender.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. A crane range extender (100), comprising:

an engine (110);

the rotating shaft of the generator (120) is connected with the rotating shaft of the engine (110), and the generator (120) is suitable for generating electricity under the driving of the engine (110);

the controller (130), the controller (130) is respectively electrically connected with a battery (200), the generator (120) and a load, the battery (200) is electrically connected with the load, and the controller is suitable for controlling the generator (120) to charge the battery (200) and/or drive the load to work;

the electric quantity detection module is electrically connected with the controller (130) and the battery (200) respectively;

a display screen electrically connected to the controller (130);

the generator (120) is adapted to charge the battery (200) and to drive the load operation.

2. The crane range extender of claim 1, wherein the engine (110) is a methanol engine.

3. The crane range extender of claim 2, wherein the load is a drive motor (300).

4. The crane range extender of claim 3, wherein the engine (110), the generator (120), and the controller (130) are integrated.

5. The crane range extender of claim 4, wherein the battery (200) is a lead acid battery, a lithium ion battery, or a nickel metal hydride battery.

6. A crane power system comprising a battery and a plurality of drive motors, the crane power system further comprising a crane range extender as claimed in any one of claims 1 to 5.

7. A crane comprising a crane body, wherein the crane further comprises the crane power system of claim 6, wherein the crane power system is disposed on the crane body.