46results about How to "Lower transport height" patented technology

The invention discloses a three-phase generator transformer with super-large capacity, which comprises an iron core, a low-voltage coil and a high-voltage coil and is characterized in that the low-voltage coil is divided into a first low-voltage coil branch and a second low-voltage coil branch which are connected in series, and the number of turns of the first low-voltage coil branch is equal to the number of turns of the second low-voltage coil branch; the iron core, the first low-voltage coil branch, the second low-voltage coil branch and the high-voltage coil are sequentially arranged fromthe inside to the outside; the two series branches namely the first low-voltage coil branch and the second low-voltage coil branch of the low-voltage coil are respectively in a double-layer multi-spiral structure formed by integrally winding self-adhesive transposed conductors; and the first low-voltage coil branch and the second low-voltage coil branch are separated by an oil clearance brace andan insulating cylinder. The invention not only can obviously lower the transport height of the transformer but also can well solve the problem of magnetic leakage inhibition of low-voltage super-large current leads, thereby improving the economy and the practicability of the three-phase generator transformer with super-large capacity.

The invention discloses a foldable goose head structure with infinitely adjustable drilling center distance, belonging to the technical field of rotary drilling rigs. The proximal end of the main pulley frame I is rotatably mounted on the base, and the distal end of the main pulley frame I is hinged with a connecting rod I; II is hinged with connecting rod I; a variable center distance oil cylinder is hinged between the main pulley frame II and the base, and a posture maintaining cylinder is hinged between the main pulley frame II and the connecting rod II; the proximal end of the auxiliary pulley frame I is rotated and installed on the main pulley frame II. On the pulley frame I, a swinging oil cylinder of the auxiliary goose head frame is hinged between the auxiliary pulley frame I and the main pulley frame I. The invention finally realizes the stepless adjustment of the drilling center distance of the rotary drilling rig through the telescopic driving of the main pulley frame II of the variable center distance oil cylinder to swing back and forth. The goose head structure reaches the minimum in the front, rear, left and right directions, reducing the occupied space and meeting the transportation requirements.

The invention relates to a step-up transformer with a dual-body structure for an ultra-high-voltage generator. The transformer comprises a main body and a voltage regulating body which are arranged in the same oil tank of the transformer, wherein the iron core of the voltage regulating body is of a double-core-column structure; a first exciting coil and a first voltage regulating coil are sheathed on one core column; a second exciting coil and a second voltage regulating coil are sheathed on the other core column; the first exciting coil and the second exciting coil are connected in parallel to form an exciting coil which is in parallel connection with a low-voltage coil in the main body and is led out. According to the invention, a branching section of a high-voltage coil is not used, a voltage-regulating coil is arranged separately and is arranged on the other body; based on low-voltage exciting, the transformer does not regulates voltage in rated branching operation and regulates voltage only in the limit branching operation, therefore the electric potential distribution of the coil is improved, and the short-circuit resistant capability of the transformer is improved.

The invention discloses car-mounted continuous pipe working equipment. The car-mounted continuous pipe working equipment includes a car chassis and a plurality of rollers, wherein the car chassis is provided with the length direction and the width direction; the multiple rollers are arranged on the car chassis and distributed in the length direction of the car chassis, the axis of each roller is parallel to the width direction of the car chassis, and a coil of continuous pipe is arranged on the multiple rollers. The car-mounted continuous pipe working equipment has the following beneficial effects that the transportation length of the continuous pipe is improved, the height of the roller transporting is reduced, and the requirement of the road transportation is met; the continuous pipe isin a disconnected state on the rollers, and the advantage of the continuous pipe is effectively exerted, that is, the continuous pipe can has no coupling and can work in a whole mode; a base column ofa main roller is directly welded to the car chassis, so that the weight of the car chassis is reduced; one of the rollers is in an oval shape, the transport height of the car-mounted continuous pipeworking equipment can be reduced, and the capacity capable of winding the continuous pipe is improved.

The invention provides a tower type crane with double hoisting arm sections. The tower type crane comprises a tower body, a first arm section and a second arm section, wherein the first arm section is connected with the tower body, the second arm section is connected with the first arm section, and a folding mechanism is arranged between the first arm section and the second arm section; after being folded, the first arm section and the second arm section are in a level adjacent state under the effect of the folding mechanism. Compared with an old fixed hoisting arm tower machine, hoisting arms are mutually hinged and folded together through the folding mechanism, so that the transporting height is reduced, and the tower type crane is convenient to transport; the hoisting arm can be orderly unfolded from a folded state to the level state under the effect of a power system, the mounting time of the tower machine is greatly shortened, and the cost of a low-rise building and a plant building is reduced.

The invention belongs to the field of excavator technology and particularly discloses a working device and an excavator. A telescopic bucket rod and a telescopic moving arm in the working device greatly improve the working range of the working device. A four-connecting-rod mechanism greatly improves the rotatable angle of the bucket rod and the working range of the whole working device. A moving arm oil cylinder is placed in a platform and enables the bucket rod to be possibly restored to the lower surface of the moving arm at a large angle, thus, the restoration angle and the restoration range of the working device are improved, and the condition that an operation machine tool scrapes the moving arm oil cylinder in the restoration state of the bucket rod is avoided. The excavator has the large-range operation capacity which a small excavator does not have, has the characteristics, of being light in weight, small in size and flexible, which a large excavator does not have, and is especially suitable for large-area operation by the small excavator or superlarge-area operation occasions of the large excavator. Meanwhile, when the working device is in a completely restored state, the excavator is small in size, light in weight, low in transportation and driving height, and small in rotary radius, and can be driven and transferred easily.

The invention provides a stirring curing machine. The stirring curing machine comprises an upper vehicle assembly, a lower vehicle assembly connected with the upper vehicle assembly through a rotary support, and a pulp injection system on the upper vehicle assembly. The stirring curing machine is characterized in that one end of a derricking mechanism is connected with the frame of the upper vehicle assembly, and the other end is connected with an upright mast system; an operation device is arranged on the mast system, and can be controlled by a hydraulic system to move on the mast system up and down; a stirring head on the front end of the operation device is driven by the hydraulic system to rotate; and the hydraulic system and an electrical control system are arranged in the upper vehicle assembly. The stirring curing machine provided by the invention has the advantages that the stirring curing machine is specifically used for foundation stabilization, and can reduce stirring dead corners, thereby achieving more uniform stirring. Furthermore, the stirring device in the invention has an enough torque, so that the stirring head can descend into the ground easily when encountering denser soil.

The invention discloses an integral transportation device for a lifting arm balance arm, which comprises a transport head, the transport head is connected with a balance arm module, a transport wheel module is placed at the bottom of the other end of the balance arm module, and the balance arm module The upper part is fixed with the jib module. The present invention has obvious effects, is convenient and practical, can realize the overall transportation of the lifting arm and the balance arm through the balance arm module and the transportation wheel module, does not need a whole car, reduces transportation cost, can reduce transportation height, and improves vehicle passability.

The invention is a novel transformer. Combining the structural advantages of the current shell-type transformers and core-type transformers, it can completely replace the current shell-type and core-type transformers. The cost is greatly reduced, and the pass rate of sudden short circuit test is basically 100%. The cooling effect of the transformer winding is good, the overload capacity is strong, the ultimate capacity is large, and the transportation is convenient. The advantages of ultimate capacity are better than shell type. When vertical transportation is inconvenient, it can be transported upside down to reduce the transportation height. Compact structure, small appearance, light overall weight, compact structure, easy installation of leads, uniform capacitance distribution, reliable insulation, strong ability to resist lightning strikes and operating overvoltage.

The invention discloses a driver's cab and construction machinery. The driver's cab is arranged on a main engine of the construction machinery. The driver's cab is provided with: a tilting mechanism for tilting the driver's cab. One end is telescopically connected with the bottom plate of the cab, and the other end of the tilting mechanism is connected with the main engine. Therefore, the present invention can provide a healthy working environment and can reduce the transport height of the construction machine.