Changsha, China
Changsha, China

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Patent
Sany Heavy Industry Co. and Hunan Sany Intelligent Control Equipment Co. | Date: 2014-03-06

In one aspect of the invention, a boom apparatus includes at least a first boom, a second boom and a third boom sequentially connected to one another, wherein a root end of the first boom is connected to a turntable, some of the booms is a bent boom occupying at least two column spaces, and when the booms are in a folded state, the boom apparatus occupies at least three column spaces. The invention also provides a concrete pump vehicle having the boom apparatus.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2015-08-05

The invention provides a leg control system, comprising a command transmitting unit, a leg controller and electromagnetic valves for controlling actions of legs, wherein the command transmitting unit is used for transmitting a leg control command; the leg controller simultaneously transmits an action instruction to the electromagnetic valves corresponding to a plurality of legs according to the received leg control command from the command transmitting unit; and the electromagnetic valves are reversed according to the control instruction so as to control the actions of the plurality of legs. Correspondingly, the invention further provides an engineering machine. According to the technical solutions of the invention, the plurality of legs can be controlled simultaneously, and problems of uneven stress and the like when a single leg is controlled are solved.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2014-05-14

In one aspect of the disclosure, a cylinder-driven lifting mechanism of a compaction machine includes a cylinder having a first end and a second end, a fixed pulley set, a movable pulley set, a rope having a head end, and a tail end configured to connect a compaction hammer. The first end of the cylinder is connected to a vehicle body of the compaction machine and the second end of the cylinder is connected to the movable pulley set. The rope is wound on the fixed pulley set and the movable pulley set and is then connected to the compaction hammer. When the cylinder performs extension and refraction movement, the movable pulley set moves with the cylinder, the distance between the movable pulley set and the fixed pulley set increases or decreases, and the compaction hammer connected to the tail end of the rope is lifted up or dropped respectively.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2014-05-09

In one aspect of the present disclosure, a wheeled material distributing machinery includes a main travel system, a boom system, at least three outrigger mechanisms, and a material distributing frame, where an inner end of a root end boom of the boom system is connected to the material distributing frame, and an inner end of the outrigger mechanism is connected to the material distributing frame, the main travel system is mounted on a cantilever of at least one of the outrigger mechanisms, and the outrigger mechanism is a driving outrigger mechanism. In a travel state, the driving outrigger mechanism is supported on a road surface through the main travel system, and at least a part of the weight of the folded boom system acts on at least one driving outrigger mechanism.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2014-05-07

In one aspect of the invention, an engine speed control method used to control an output speed of an engine of a boom-type engineering machine during a boom action includes: detecting a load pressure of a hydraulic system and a moving speed of a boom; determining a target speed of the engine according to the load pressure and the moving speed of the boom, by a central control unit; and sending, by the central control unit, the target speed of the engine to an engine control unit, and performing, by the engine control unit, a speed closed-loop adjustment according to a current speed value fed back by the engine, so that a current speed of the engine is consistent with the target speed of the engine. Further aspects are an engine speed control system and a boom-type engineering machine having the engine speed control system.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2014-05-09

In one aspect of the present disclosures, a wheeled material distributing machinery includes a main travel system, a boom system, and a material distributing frame, where an inner end of a root end boom of the boom system is connected to the material distributing frame, the main travel system is mounted on a predetermined boom of the boom system. In a travel state, the main travel system is supported on a road surface, and at least part of the weight of the boom system and at least part of the weight of the material distributing frame act on the main travel system. In a predetermined working state, the material distributing frame is supported on a working surface, and the entire weight of the boom system and the entire weight of the main travel system both act on the material distributing frame.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2014-06-25

In one aspect of the invention, a boom apparatus used for a concrete pump vehicle includes multiple booms, where the multiple booms comprise a first boom hinge-connected to a turntable of the concrete pump vehicle and a second boom hinge-connected to the first boom. When the boom apparatus is in a folded state, the first boom extends towards a cab of the concrete pump vehicle, and the second boom is further placed above the first boom. The invention also provides a concrete pump vehicle having the boom apparatus.


Patent
Sany Heavy Industry Co. and Hunan Sany Intelligent Control Equipment Co. | Date: 2014-02-19

In one aspect of the invention, a boom apparatus used for a concrete pump vehicle includes multiple booms, where the multiple booms comprise a first boom hinge-connected to a turntable of the concrete pump vehicle and a second boom hinge-connected to the first boom. When the boom apparatus is in a folded state, the first boom extends towards a cab of the concrete pump vehicle, and the second boom is further placed above the first boom. The invention also provides a concrete pump vehicle having the boom apparatus.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2014-12-17

The invention discloses a pump truck stability control system, which comprises a detecting device and a controlling device, wherein the detecting device is used for detecting current pumping state parameters, boom posture parameters, landing leg posture parameters, pump truck body position state parameters and current numerical signals of external load parameters acting on a boom system of a pump truck, and the controlling device is used for receiving the current numerical signals of the above parameters, calculating the complete machine gravity center position of the concrete pump truck according to the parameters, and performing stability control for the pump truck according to the position of the complete machine gravity center in a pump truck stability area. The stability control system comprehensively takes pump truck own factors and external load influence factors into consideration, gravity center computational precision is high, and construction safety of the concrete pump truck is enhanced. In addition, the invention further provides a pump truck stability control method and a pump truck comprising the pump truck stability control system.


Patent
Hunan Sany Intelligent Control Equipment Co. and Sany Heavy Industry Co. | Date: 2014-09-03

In one aspect of the invention, a boom apparatus includes at least a first boom, a second boom and a third boom sequentially connected to one another, wherein a root end of the first boom is connected to a turntable, some of the booms is a bent boom occupying at least two column spaces, and when the booms are in a folded state, the boom apparatus occupies at least three column spaces. The invention also provides a concrete pump vehicle having the boom apparatus.

Loading SANY Heavy Industry Co. collaborators
Loading SANY Heavy Industry Co. collaborators