WO2013143268A1

WO2013143268A1 - Hoist and accessory axle device thereof

Info

Publication number: WO2013143268A1
Application number: PCT/CN2012/082160
Authority: WO
Inventors: 詹纯新; 刘权; 张建军; 王启涛; 刘学俭; 罗贤智; 王文佳
Original assignee: 中联重科股份有限公司; 湖南中联重科专用车有限责任公司
Priority date: 2012-03-27
Filing date: 2012-10-31
Publication date: 2013-10-03
Also published as: CN103434568A; CN102602454B; CN103434568B; CN102602454A

Abstract

A hoist comprises a first car body (11) and a second car body (12) that are connected to each other in a disassemblable manner. The first car body (11) comprises a hoisting mechanism (110) and a first power source (111) for driving the first car body. The second car body (12) comprises a second power source (120) for driving the second car body. An accessory axle device of the hoist can increase the driving power of the hoist.

Description

Crane and its additional axle device

Technical field

The present invention relates to the field of crane technical equipment, and more particularly to a crane and its additional axle device. Background technique

With the continuous development of the hoisting industry and the innovation of design technology and manufacturing technology, cranes are constantly moving towards heavy lifting, which leads to the crane itself becoming heavier. Moreover, due to the limits of national regulations for road vehicles, the dimensions, weight and axle load of the crane cannot be designed as desired.

In order to make the crane's outer dimensions, weight, axle load, etc. meet the regulatory requirements, and at the same time meet the heavy load transfer of the crane in the work site, the prior art adopts a means of installing a detachable additional axle device at the tail of the crane's chassis. . This technical means ensures that part of the weight is transferred to the additional shaft during loading, thus reducing the total load on each axle, and because of the appropriate additional shaft, the crane can be self-propelled in the work site, eliminating the need for additional equipment. Transport vehicles that transport additional equipment or counterweights.

However, the addition of the axle device does not increase the driving power of the crane, but also increases the weight of the vehicle, resulting in insufficient power, resulting in fatal defects such as small climbs, thereby affecting the use of the additional axle device. Summary of the invention

The technical problem to be solved by the present invention is to provide a crane and its additional axle device capable of increasing the driving power of a crane connected to the additional axle device.

In order to solve the above technical problem, a technical solution adopted by the present invention is: providing a lifting The first vehicle body and the second vehicle body are detachably connected to each other; the first vehicle body includes a crane structure and a first power source for driving the first vehicle body; and the second vehicle body includes a second vehicle body for driving The second source of power.

The second vehicle body comprises a suspension, a transmission system, a load-bearing bridge and a drive axle disposed at a front and a rear, the suspension is disposed on the load-bearing bridge and the drive axle, and the transmission system is connected between the second power source and the drive axle, and the second The power of the power source is transmitted to the drive axle.

Among them, the suspension is an oil and gas suspension, and the second vehicle body includes a control wide group that controls the suspension lifting. Wherein, the second vehicle body includes a controller respectively connected to the second power source and the drive axle, and controls the power of the second power source and the steering of the transaxle.

Wherein, the length of the second vehicle body is smaller than the length of the first vehicle body, and is detachably connected to the tail portion of the first vehicle body.

In order to solve the above technical problem, another technical solution adopted by the present invention is to provide an additional axle device for a crane, including a power source, a suspension, a transmission system, a load-bearing bridge and a drive axle disposed in front and rear;

The suspension is disposed on the load bearing bridge and the drive axle, and the transmission system is connected between the power source and the drive axle to transmit the power of the power source to the drive axle.

Among them, the suspension is an oil and gas suspension, and the device includes a control wide group that controls the suspension lifting.

The device includes a controller that respectively connects the power source and the transaxle, and controls the power of the power source and the steering of the transaxle.

Wherein, the device comprises a brake mechanism arranged and connected to the transaxle, and further comprises a controller connecting the power source, the brake mechanism and the transaxle, respectively controlling the power of the power source, the braking of the brake mechanism and the steering of the transaxle.

Among them, the number of drive axles is two or more.

The beneficial effects of the present invention are: different from the prior art, the crane of the present invention and its additional axle device include a first vehicle body having a power source, and a second vehicle that can be connected and disassembled with the first vehicle body by adding Body, the second body is also designed to have a power source, which can be increased The driving power of the heavy machine, its additional shaft has self-driving ability, can adjust the posture of the vehicle body, and is convenient to connect with the crane. DRAWINGS

1 is a schematic structural view of an embodiment of a crane of the present invention;

Figure 2 is a schematic structural view of another embodiment of the crane of the present invention;

Figure 3 is a schematic structural view of an embodiment of an additional axle device of the crane of the present invention;

4 is a flow chart of an embodiment of a crane working method of the present invention. detailed description

The invention will now be described in detail in conjunction with the drawings and embodiments.

Referring to Figure 1, Figure 1 is a schematic view showing the structure of an embodiment of the crane of the present invention. Embodiments of the present invention include:

The first body 11 and the second body 12 are.

The combination and separation of the first body 11 and the second body 12 can be achieved by connecting and disassembling the first body 11 and the second body 12.

The first body 11 includes a crane structure 110 and a first power source 111, and the first power source 111 drives the first body 11 to travel.

The second body 102 includes a suspension 121, a transmission system 122, a load bearing bridge 123, a drive axle 124, and a second power source 120.

The second power source 120 drives the second body 12 to travel. The second power source 120 can be an internal combustion engine or an electric motor, and the internal combustion engine can be a gasoline engine or a diesel engine. The gasoline engine is efficient, the diesel engine is energy efficient, and the motor is environmentally friendly. Therefore, the selection of the second power source 120 is determined according to specific needs, and is not limited herein.

Wherein, the bearing bridge 123 and the transaxle 124 are disposed front and rear, and the bearing bridge 123 and the transaxle

124 can be turned. The suspension 121 is disposed on the load bearing bridge 123 and the transaxle 124. Transmission system 122 It is a mechanical transmission system and is connected between the second power source 120 and the transaxle 124 for transmitting the power of the second power source 120 to the transaxle 124. Of course, the transmission system 122 can also be a hydraulic transmission system or a pneumatic transmission system. The selection of the transmission system 122 depends on specific needs, and is not limited herein.

Preferably, the suspension 121 is an oil and gas suspension for controlling the lifting and lowering of the body of the second body 12, and the body posture of the second body 12 can be adjusted to facilitate the successful connection of the second body 12 with the first body 11. Hydro-pneumatic suspension refers to a suspension that uses oil to transfer pressure, an inert gas (usually nitrogen) as the elastic medium, an orifice inside the suspension cylinder, and a unidirectional width as a damper element. The use of oil and gas suspensions improves shock absorption and increases load carrying capacity.

The second body 12 further includes a controller 125 and a control wide group 1210 that controls the suspension 121 to ascend and descend.

The controller 125 is coupled to the second power source 120 and the transaxle 124 for controlling the power of the second power source 120 and the steering of the transaxle 124. Preferably, the controller 125 is a PLC (Programmable Logic Controller) controller.

In general, the first body 11 serves as the main body of the crane, and the length of the second body 12 is smaller than the length of the first body 11. Moreover, the second body 12 can be coupled to the tail of the first body 11 or detached from the tail of the first body 11.

Specifically, the first body 11 includes a chassis 112, and the second body 12 can be coupled to the tail of the first body 11 by connecting the chassis 112. It should be noted that the connection between the first body 11 and the second body 12 further includes the connection of its controller and its connection to control the wide group, that is, the first body 11 includes a control system (not shown), the control An output of the system is coupled to the input of the controller 125 of the second body 12, and the other output of the control system is coupled to the input of the control bank 1210 of the second body 12. The connection between the first vehicle body 11 and the second vehicle body 12, and the connection between the controller and the control wide group are generally in a docking manner, and are of course not limited thereto. When the first vehicle body 11 is connected to the second vehicle body 12, the driving, wheel steering, braking, and control of the first vehicle body 11 and the second vehicle body 12 are controlled by the control system of the first vehicle body 11 Two car body 12 The function of the suspension 121 lifting and the like realizes the integration of the second vehicle body 12 with the steering system, the braking system and the suspension system of the first vehicle body 11. Further, when the first vehicle body 11 is coupled to the second vehicle body 12, the first vehicle body 11 is away from the end of the second vehicle body 12 as the front end of the entire crane.

Referring to Figure 2, Figure 2 is a schematic view showing the structure of another embodiment of the crane of the present invention. When the second vehicle body 12 is coupled to the first vehicle body 11, the center of gravity of the crane arm 13 of the crane can be moved toward the second vehicle body 12, and the first vehicle body 11 and the second vehicle body 12 are collectively received by the boom 13 weight. It is possible to ensure that the weight of the portion to be carried is distributed to the second body 12, thereby reducing the total load of each vehicle body, that is, reducing the total load of each axle. Moreover, at this time, the crane can eliminate the need for additional equipment or counterweight vehicles to help the crane to rotate in the workplace without the need to remove the boom 13 and other overweight components, thereby greatly saving the crane transition time. Improve work efficiency.

Continuing with reference to Figure 1, on the other hand, the second body 12 can be detached from the chassis 112 to effect separation of the second body 12 from the first body 11. When the first body 11 and the second body 12 are separated, the front of the first body 11 is still the front of the vehicle, and the other end of the first body 11 is the tail. At this time, the front end of the second vehicle body 12 is the first vehicle body 11 connected to the second vehicle body 12, the second vehicle body 12 is adjacent to one end of the first vehicle body 11, and the rear end of the second vehicle body 12 is the other end.

Moreover, in order to make the second vehicle body 12 have independent driving ability after being separated from the first vehicle body 11, the second vehicle body 12 is generally set to include not less than four wheels, wherein when the wheels are four, two The wheels are mounted in cooperation with the load bearing bridge 123, and the other two wheels are mounted in cooperation with the drive axle 124. However, if it is considered to increase the load, the wheel can be added. Of course, it is necessary to consider adding a load-bearing bridge or an additional drive axle to cooperate with the wheel to be added, which will not be described in detail herein.

In the embodiment of the present invention, the first vehicle body 11 is designed to have a first power source 111, the second vehicle body 12 is designed to have a second power source 120, and the second vehicle body 12 can be connected to the first vehicle body 11 and Disassembly, when the second vehicle body 12 is connected to the first vehicle body 11, the power source and the control system can be integrated, and the driving power of the crane can be increased, in particular, the climbing ability of the crane can be improved. When the second vehicle body 12 is detached from the first vehicle body, the second vehicle body 12 has self-driving ability, can adjust the posture of the vehicle body, and is convenient to be connected with the crane. Referring to Figure 3, Figure 3 is a block diagram showing an embodiment of an additional axle assembly for a crane of the present invention. Embodiments of the invention include:

Power source 220, suspension 221, transmission system 222, load bearing bridge 223, and drive axle 224. The load bearing bridge 223 and the drive axle 224 can both be steered, and the load bearing bridge 223 and the drive axle 224 are disposed forward and backward. The suspension 221 is disposed on the load bearing bridge 223 and the drive axle 224. The transmission system 222 is connected to the power source 220 and the drive axle 224. Between, the power of the power source 220 is transmitted to the transaxle 224. The suspension 221 is an oil and gas suspension, and the use of the oil and gas suspension can improve the shock absorption and increase the load carrying capacity.

Of course, the additional axle assembly is capable of independent driving, and the additional axle assembly is designed to include a control manifold 2210, a controller 225, and a brake mechanism (not shown). The control group 2210 controls the suspension 221 to be lifted and lowered, the brake mechanism is disposed and connected to the transaxle 224, and the controller 225 is respectively connected to the power source 220, the drive axle 224 and the brake mechanism, respectively controlling the power of the power source 220 and the brake mechanism. Braking and steering of the transaxle 224.

Moreover, the number of drive axles can be two or more. The load capacity of the additional axle device can be increased with the arrangement of the wheels.

According to an embodiment of the present invention, an additional axle device for a crane is provided. The additional axle device of the crane has a power source 220, has independent driving capability, can be connected with a crane, share the load, and increases the driving power of the crane. Driving ability, can adjust the body posture, and is easy to connect with the crane, flexible assembly, and improve work efficiency.

Referring to Figure 4, Figure 4 is a flow chart of an embodiment of the method of operation of the crane of the present invention. This embodiment includes:

Step S1, controlling the running, wheel turning and braking of the second vehicle body through the controller of the second vehicle body, and controlling the suspension lifting of the second vehicle body through the control wide group of the second vehicle body to adjust the posture state thereof. Among them, the second vehicle body itself has a power source.

In step S2, the second vehicle body is connected to the first vehicle body. The connection of the first body to the second body also includes its controller and its connection to control the wide group. Where the connection is generally through the docking method, this At the time, the main control of the crane is obtained by the first body.

Step S3, the issuing instruction of the first vehicle body is respectively received by the control system of the first vehicle body and the controller and the control wide group of the second vehicle body, and is used for controlling the driving and wheel steering of the first vehicle body and the second vehicle body. , braking and suspension lifting of the second body. Specifically, the control system of the first vehicle body controls the travel, wheel steering and braking functions of the first vehicle body and the second vehicle body, and the control wide group of the first vehicle body controls the suspension lifting function of the second vehicle body.

In the embodiment of the present invention, by adjusting the posture of the second vehicle body and connecting with the first vehicle body, the integration of the first vehicle body and the second vehicle body steering system, the braking system and the suspension system can be realized, and the crane can be driven. Power, its additional shaft has self-driving ability, can adjust the body posture, and is convenient to connect with the crane.

Of course, after the second vehicle body is detached from the first vehicle body, the control system of the first vehicle body can only control the first vehicle body, and the second vehicle body restores control of itself, that is, the second vehicle body passes through itself. The controller and control group control its functions of driving, steering, braking and suspension lifting. In the case where it is necessary to separate the two, since both have independent driving ability, the driving speed can be improved and the working efficiency can be improved.

The above is only the embodiment of the present invention, and is not intended to limit the scope of the invention, and the equivalent structure or equivalent process transformations made by the specification and the drawings of the present invention may be directly or indirectly applied to other related technologies. The scope of the invention is included in the scope of patent protection of the present invention.

Claims

Rights request

A crane characterized by:

The first body and the second body including the detachable connection with each other;

The first vehicle body includes a crane structure and a first power source that drives the first vehicle body;

The second vehicle body includes a second power source that drives the second vehicle body.

2. A crane according to claim 1 wherein:

The second vehicle body includes a suspension, a transmission system, a front and rear load bearing bridge and a drive axle, the suspension is disposed on the load bearing bridge and the drive axle, and the transmission system is connected between the second power source and the drive axle , the power of the second power source is transmitted to the transaxle.

3. The crane according to claim 2, characterized in that:

The suspension is an oil and gas suspension, and the second vehicle body includes a control wide group that controls suspension lifting.

4. The crane according to claim 2, characterized in that:

The second body includes a controller that is coupled to the second power source and the transaxle, respectively, to control the power of the second power source and the steering of the transaxle.

The crane according to any one of claims 1 to 4, wherein: the second vehicle body has a length smaller than a length of the first vehicle body, and is detachably coupled to a tail portion of the first vehicle body.

6. An additional axle device for a crane, characterized in that:

The utility model comprises a power source, a suspension, a transmission system, a load-bearing bridge and a drive axle disposed at a front and a rear; the suspension is disposed on the load-bearing bridge and the drive axle, and the transmission system is connected between the power source and the drive axle, and the power source is Power is transmitted to the transaxle.

7. Apparatus according to claim 6 wherein:

The suspension is an oil and gas suspension, and the apparatus includes a control wide group that controls suspension lifting.

8. Apparatus according to claim 6 wherein:

The apparatus includes a controller that couples the power source and the transaxle, respectively, to control the power of the power source and the steering of the transaxle.

9. Apparatus according to any one of claims 6 to 8 wherein:

The apparatus includes a brake mechanism disposed and coupled to the transaxle, and a controller coupled to the power source, the brake mechanism, and the transaxle to control power of the power source, braking of the brake mechanism, and steering of the transaxle, respectively.

10. Apparatus according to any one of claims 6 to 8 wherein:

The number of the transaxles is two or more.