1761 results about "Traveling block" patented technology

An improved mast arrangement for a mobile multi-function rig has a winch line extending from an upper end of the mast and a traveling block supported thereon. A trolley mountable on the mast is adapted for coupling to the traveling block. The trolley works primarily as a guide for a given load, and therefore is of a lightweight design since loads mounted to the trolley are transferred directly to the traveling block and the supporting winch line. The trolley provides the capability to readily switch between various rig operations, including manipulating coiled tubing with an injector, setting surface casing using a top drive, operating the winch and traveling block for joined pipe operations, and interchanging between top drive and joined pipe operations without removing the top drive from the mast or rig. The rig can run deeper joined pipe applications than previous mobile rigs by providing means for employing the top drive, namely the trolley is adapted to counteract the torsion exerted by the top drive during operation. The trolley is able to work the entire length of the mast after quickly parking the injector near the bottom of the mast. The winch and traveling block have unobstructed travel along the entire length of the mast without disengaging the trolley from the mast and with the injector parked near the bottom end.

A trolley hoisting system for use in a rig has a derrick mounted to the rig, a winch line extending from an upper end of the derrick, and a traveling block located at one end of the winch line. An injector trolley has at least one cavity for allowing the winch line passage therethrough and is adapted to engage the traveling block so that the winch line may be used to raise and lower the injector trolley along the derrick. A lock arrangement for fixing the injector trolley to the derrick at an upper end thereof allows the traveling block to extend below the injector trolley for performing other desired tasks on the rig.

A system for capturing displaced fluid or pumping fluid through tubulars being run into or out of the wellbore is described. Embodiments are supported by a traveling block and top drive unit with telescoping features to rapidly seal over a tubular to connect the tubular to a mud system. Alternative sealing arrangements for sealing inside the tubular connection are also disclosed. These alternate sealing arrangements also provide flow areas larger than the tubular body since no portion of these arrangements enter the tubular body. All of the sealing arrangements provide a biased area whereby any internal pressure in the invention forces the seals into more intimate contact with their mating seal surfaces. A mudsaver valve having a large flow capacity is described to keep fluid from spilling when the apparatus is removed from the tubular. This mudsaver valve also provides for pumping of fluid into the tubular or flow of fluid from the tubular to the mud system prior to removing the apparatus from the tubular. In these embodiments, the apparatus can be placed in threaded sealing contact with the tubular and can incorporate a safety valve that can be manually closed in the event of a well kick. In another embodiment, a singular control input accomplishes operation of the apparatus to extend or retract the telescoping feature. Also illustrated is a drain valve that provides a method of completely removing all fluid pressure from within the apparatus prior to removing the apparatus from the tubular. The drain system also provides a means of disposing of the excess fluid away from the rig floor where spillage is a danger to the personnel or environment. The drain system can also be connected to a scavenger system that is intended as a vacuum system for removal of spillage. Connection to this system eliminates all possible spillage and completely removes fluids from the tubular handling area.

The invention discloses a drilling column heave compensation device of a marine floating type drilling platform. A composite hydraulic cylinder is adopted as a heave compensation hydraulic cylinder in a crown block heave compensation device; the high-pressure hydraulic oil output by a hydraulic pump flows into a rodless cavity of an inner cylinder and a rod cavity of an outer cylinder of the composite compensation hydraulic cylinder by a compensation control valve to provide controllable additional force for a piston rod of the outer cylinder; and the resultant force of the force and the hydraulic force acted by the rodless cavity of the outer cylinder of the compensation hydraulic cylinder provides support force to a crown block. The direction and magnitude of the additional force are controlled according to the platform heave motion, and the compensation effect of a heave compensation system is improved. A control unit transmits a control command to the hydraulic system according to the motion speed of the platform in the vertical direction, wherein the motion speed is obtained by detection, drives a piston of the compensation hydraulic cylinder to push the crown block to move and compensates the heave motion of the platform so that the crown block, a traveling block and a large hook are in a static state in the vertical direction relative to the well bottom in the allowable range.

A transportable drilling rig having a self-elevating drill floor includes a base structure comprising multiple base towers that can be transported to a wellsite and positioned around an intended wellbore location. A horizontal base frame is installed between lower regions of the towers to form a stable rig base structure, and a drill floor can then be constructed over the base frame and between the base towers. A suitable rig mast can then be erected on the drill floor. Floor-lifting cables are anchored to upper regions of the base towers and disposable around corresponding sheave assemblies associated with the drill floor. The free ends of the floor-lifting cables can be engaged by the traveling block in the rig mast, whereupon the rig's drawworks can be actuated to elevate the drill floor and mast as required and then locked to the base towers.

The invention discloses a method and a two-connection board device for replacing tension insulator strings of high-voltage transmission lines with upspinning and charging. The insulator strings are loosened first by using special tools such as end wing clips and insulating pull plates; The pulleys and screw rods on the side make all the ends of the insulator strings disengage; finally, the pulleys on the ground wire brackets are used to rotate the porcelain bottle strings from the horizontal state to the vertical state, thus changing the complex operation into a relatively simple operation, which greatly shortens the time Potential working time to ensure the safe operation of the line; live replacement of the high-voltage transmission line tension insulator string double-connected plate device, including two wing cards and two screw screws, and also includes two pairs of insulating pull plates, one end of the two pairs of insulating pull plates They are respectively connected with two wings of the wing card, and the other ends are respectively connected with a lead screw, and the other ends of the two lead screws are respectively connected with the two wings of the other wing card. The structure is simple, easy to operate and low in cost.

The invention discloses a special build-up welding machine applied to a heavy binding roller or a squeeze roller, which comprises a machine base, a device for supporting and positioning a workpiece, a shift prevention device, a device for welding the workpiece, a drive device and a PCL control system of the whole machine, wherein the device for supporting and positioning the workpiece comprises a main axle box used for correcting, clamping and driving the workpiece to rotate and adjustable supporting rotary tires; the number of the adjustable supporting rotary tires is at least two, and the adjustable supporting rotary tires are spaced at a certain distance and arranged on the base in a slide mode; and the device for welding the workpiece comprises a side hung pulley which is arranged on the side face of the base and provided with a welding agent recovery machine and a lifting welding cantilever which can be used for build-up welding. The invention is specially designed aiming at heavy workpieces such as the binding roller, the squeeze roller, a heavy-duty hydraulic cylinder, and the like, has reasonable structure, stability and reliability, is convenient for replacing a welding stick disk, adding a welding agent and cleaning and maintaining a welding gun and greatly improves the working efficiency.

The technology disclosed herein provides a multiple sensor system that prevents crown incursion by a traveling block in an oil rig. This system calculates traveling block position, traveling block velocity and weight supported by the traveling block, and uses this information to calculate emergency stopping positions to prevent crown out by the traveling block. The system takes all these parameters into consideration when slowing and/or stopping the traveling block when it reaches a crown out position. The result is much safer operation of the traveling block on a workover rig, as well as on an oil drilling rig.

The invention discloses a high-speed large-torque full-hydraulic top drive well-drilling device which is driven by a group of high-speed small-torque hydraulic motors. Each hydraulic motor is equipped with an independent multi-piece disk brake and a planetary speed reducer; a main shaft can rotate at high speed and large torque; a disk brake is not required to be arranged. The structure of the high-speed large-torque full-hydraulic top drive well-drilling device comprises a lifting device, a main transmission box, a rotation head assembly, a hydraulic chuck and an opening-closing sliding trolley which are arranged from top to bottom, wherein the upper part of the lifting device is directly connected with a traveling trolley by virtue of a lifting cross beam; the lower part of the lifting device is connected with a lifting seat of the main transmission box; the rotation head takes a rotation driver driven by a worm as a main working part; the accurate angle location is implemented by electric-hydraulic proportional closed-loop control; the rotation head has self-locking property and can be used for simultaneously driving a drilling column to rotate with the main shaft; the low-speed torque increasing operation can be implemented. The hydraulic top driver is small in size and light in weight; electric-hydraulic proportional volumetric speed control in a high rotation speed range is implemented by a hydraulic system through a mechanical and electrical integration technology, thereby meeting the requirements of a plurality of deep well drilling processes and drilling disciplines, especially core drilling during continental scientific drilling of deep wells.

The invention relates to a winch heave compensation device for an ocean floating drilling platform. The device comprises an active compensator and a passive compensator which are arranged on one side of a winch in parallel. The active compensator comprises a first single-rod piston cylinder with a piston rod stretching upwards and a force transducer, wherein two chambers of the first single-rod piston cylinder are connected to a hydraulic system through a three-position four-way magnetic exchange valve, and the force transducer is used for detecting force on a steel wire rope and electrically connected with a force feedback controller which controls exchange actions of the three-position four-way magnetic exchange valve. The passive compensator comprises a second single-rod piston cylinder with a piston rod stretching upwards. Tops of the piston rods of the first piston cylinder and the second piston cylinder are connected onto a movable pulley, a fixed pulley is further arranged on the drilling platform, and the steel wire rope on the winch is connected with a crown block and a traveling block after bypassing the movable pulley and the fixed pulley sequentially. According to the device, the compensation effect that active compensation and passive compensation are mutually synchronous and promoted can be achieved.

The invention discloses an all-hydraulic automatic drilling tool conveying device for a deep-well drilling rig, which includes brackets, a platform, a turning board mechanism, a slideway luffing mechanism, a support rod mechanism, a pushing mechanism, an ejection mechanism, an anti-falling mechanism, a lifting slideway, a variable-angle mechanism, a lifting pulley, a chain and a ramp, and is used for being combined with a top drive and conveying a drilling tool from ground to a base platform, wherein the platform and the lifting slideway adopt a parted structure; stepped rolling paths are designed on the brackets; the brackets are hinged on the two sides of the platform; and a proximity switch is mounted in a stop pin of the drilling tool, and is used for automatically controlling the turning board mechanism. A driving chain transmission mechanism of the lifting pulley or a rack and pinion mechanism is used for lifting the slideway, a buffering power-assisting oil cylinder is equipped, and a double-shaft tilt sensor is utilized to detect and adjust the pose of the slideway and guarantee the stable running; a double hydraulic-motor driving chain transmission mechanism is used for pushing the drilling tool; and the device adopts the electromechanical and hydraulic integrated control, and has high operating efficiency and precision, as well as excellent stability.

The invention relates to a testing method and a testing device of a train pneumatic performance simulation moving module. The testing method comprises the following steps: a train model on rails is used, one end of the trail model is provided with an elastic traction mechanism which passes through a travelling block speed increasing mechanism and a traction train module; the train model is pulled to the other direction of the other rail to enable the elastic traction mechanism to tension to generate contraction elasticity; and the pulled train model is released and is speeded up to the testing speed under the drive of the contraction elasticity of the elastic traction mechanism. The invention has simple implementation method and easy control, can realize the operation that the trail can quickly accelerate to 400 km/h from still and from high-speed brake to still, has higher testing accuracy, can relatively truly reflect ground effect and train crossing condition and reflect various actual running states of trains on rails.

The hollow tray separator includes one tray stacking frame and one conveying belt passing through the tray stacking frame. The tray stacking frame has two pairs of tracks perpendicular to the conveying belt, traveling trolleys set in each of track pairs and connected to the driver for sliding up and down; and telescopic jaws on the traveling trolleys. The hollow trays are stacked on the conveying belt, the traveling trolley drives the telescopic jaws to move upwards to lift the stacked hollow trays but the lowest one, and the conveying belt to convey the lowest hollow tray further for separating out. The present invention is used in automatic production line and has high work efficiency.

The invention relates to a new energy vehicle and a charge pile with automatic charge functions. The new energy vehicle comprises a vehicle, a charge interface, a battery pack, a driving mechanism, a brake system, a driving system and a central controller. The charge pile with the automatic charge functions for the new energy vehicle comprises a support, a base, a parking plate and a charge mechanism. The charge mechanism comprises a travel assembly, a PLC (programmable logic controller) and a charge assembly, the travel assembly comprises a first cylinder, a travel frame, a motor, a circular gear, a strip gear, a travel block and struts, and the charge assembly comprises a second cylinder, a charge case, a long-distance card reader and detection assemblies. The new energy vehicle and the charge pile with the automatic charge functions have the advantages that approximate locations of the vehicle can be detected by the long-distance card reader, the distance from a charge head to the charge interface can be detected by the detection assemblies, the charge head can be shifted to be positioned right ahead the charge interface by the charge assembly and can be pushed into the charge interface by the second cylinder, and accordingly the new energy vehicle can be automatically charged.

The invention discloses a Kelly board tubular column arrangement system and an operation method thereof. The system comprises a longitudinal shift assembly, a mechanical hand assembly, a mechanical arm assembly, a pulley assembly, a walking board assembly, a Kelly board tube bent frame; one end of the mechanical arm assembly is connected with the mechanical hand assembly, the other end of the mechanical arm assembly is connected with the pulley assembly; the mechanical hand assembly is driven by hydraulic pressure and internally provided with a plunger cylinder, and tong dies are fixed on a clamping part, the mechanical hand assembly is further provided with a contact-type displacement transducer; a low-speed huge-torque hydraulic motor is arranged at the top of the pulley assembly and connected with the mechanical arm assembly by a driving flange to drive the mechanical arm assembly to rotate, running pulley sets are arranged at the two sides of the pulley assembly; the longitudinal shift assembly is fixed to the pulley assembly by a ball-screw screw nut; the walking board assembly is arranged above the longitudinal shift assembly; the Kelly board tube bent frame is arranged above the walking board assembly.The invention can simplify mechanical construction in the process of realizing arrangement automation of Kelly board tubular columns, thereby lowering equipment cost and maintenance cost.

The present invention provides an automatic system for engaging the hydromatic brake on a drilling rig or a service rig. This system monitors both the hook load and traveling block velocity, and uses an electrical solenoid to activates the hydromatic when either the hook load or rotating drum velocity exceeds a maximum value, requiring hydromatic brake engagement.

The invention discloses a method and a device for an endurance bending test of a composite insulator. The device consists of a motor (1), a belt pulley (2), a belt (3), a belt pulley (4), a speed reducer (5), a coupling (6), a roller (7), a descending wire rope (8), a descending wire rope (9), an ascending wire rope (10), an iron tower (11), an upper fixed pulley (12), an upper pulley block (13), a slide rail (14), a lower pulley block (15), a lower fixed pulley (16), a pressure sensor (17), the composite insulator (18) and a digital display meter (19). The method and the device realize the aging tests on the mechanical strength of the composite insulator, the interface quality of a jacket and a core rod, and the bonding quality of the jacket and an umbrella skirt, and the detection on an ultimate strength test, and ensure the quality of the composite insulator.