276results about How to "Reliable guidance" patented technology

A drive system that includes a drive shaft, which is or can be brought into torque-transmitting connection with a drive train, a secondary drive system for transmitting torque between the drive shaft and at least one auxiliary unit, and at least one vibration-damping device including a deflection mass carrier with freedom to rotate around a rotational axis and at least one deflection mass, which can shift position relative to the deflection mass carrier in at least one deflection plane. Upon deflection of the at least one deflection mass from the home position relative to the deflection mass carrier, the radial position of the deflection mass changes relative to the rotational axis. At least part of the vibration-damping device can be integrated into part of the secondary drive system.

A holding device for fastening elements which is securable to screw-driving power tool and includes at least two clamping members (20) which abut a stem (74) of the fastening element in a release position of the clamping members and which are displaceable upon an application of a force thereto into their release position, with the clamping members (20) having at least one contact region which forms, at least in the support position of the clamping members (20), a front stop of the holding device (10) in a drive-in direction (22) of the power tool (2).

A header has a middle section disposed on a main frame, at least two side sections adjacent to the middle section, a rear panel extending perpendicularly to the main frame, a flexible finger bar extending across a width of the header and a conveyor device disposed behind the finger bar. The conveyer device is designed on the side sections as a continuous conveyor belt disposed adjacent to the middle section in order to transport crop cut by the finger bar laterally in the direction of the middle section. The side sections are formed as a plurality of supporting arms swivellably disposed on the main frame that support the finger bar. Each side section has a plurality of supporting elements for supporting the conveyor belt. Each of the supporting elements is supported in a bearing point to be displaceable in the axial direction relative to the main frame.

The invention discloses a pump cap screwing machine, which comprises a rack, a power transmission device, a cap screwing assembly, a bottle body supply device, a first bottle guide device, a second bottle guide device, a bottle feed star wheel device, a bottle stopping device, a bottle discharge star wheel device, a cap supply device, a rotating air path distribution device and a bottle output device, wherein the first bottle guide device is arranged at the tail of a screw rod and is matched with the bottle feed star wheel device, and a bottle feed inlet is formed between the first bottle guide device and the bottle feed star wheel device; the bottle feed star wheel device comprises a bottle feed turntable and a bottle feed rotating shaft which is movably connected with the power transmission device, the bottle feed turntable is provided with bottle feed clamping mounts and the bottle feed turntable is sheathed on the bottle feed rotating shaft; the second bottle guide device is matched with the bottle discharge star wheel device, a bottle discharge outlet is formed between the second bottle guide device and the bottle discharge star wheel device and the bottle stopping device is connected with the bottle discharge outlet. The pump cap screwing machine has the advantages that the structure is simple, the production efficiency is high, the processes of cap conveying, cap grabbing and cap screwing can be finished in one step, the effect of multiple products on one production line can be realized and the cap screwing effect is good.

Device provided with a bone milling cutter for application on medical, especially dental handpieces. The milling cutter having a milling head is mounted so as to be displaceable in a bushing which is coupled rotation-locking with the milling cutter in the direction of its axis of rotation. A circular knife edge is provided on the face of the bushing, so that the bushing forms a rotating punch, and the milling head can be pushed out of the plane of the face of the bushing.

Based on anatomy recognition from three-dimensional live imaging of a volume, one or more portions (204, 208) of the volume are selected in real time. In further real time response, live imaging or the portion(s) is performed with a beam density (156) higher than that used in the volume imaging. The one or more portion may be one or more imaging plane selected for optimal orientation in making an anatomical measurement (424) or display. The recognition can be based on an anatomical model, such as a cardiac mesh model. The model may be pre-encoded with information that can be associated with image locations to provide the basis for portion selection, and for placement of indicia (416, 420, 432, 436) displayable for initiating measurement within an image provided by the live portion imaging. A single TEE or TTE imaging probe (112) may be used throughout. On request, periodically or based on detected motion of the probe with respect to the anatomy, the whole process can be re-executed, starting back from volume acquisition (S508).

The chair comprises: a chair body having a seat surface part and the backrest part and a support part for supporting the chair body, and the reclining mechanism which moves the backrest part forward simultaneously with the backward falling in a state where an angle between the seat surface part and the backrest part is fixed constant is arranged between the support part and the chair body. To provide a chair having a reclining mechanism, by which an occupancy area is reduced as much as possible, while preventing the backward protrusion of a backrest part in the case of reclining and the contact position with a body such as shoulders is not changed.

The invention relates to a power system transient state voltage stability evaluating method based on misclassification cost classified learning, which belongs to the power system stability analyzing and evaluating field. Based on dynamic measurement datum of a synchronous phasor measuring unit, a key subsequence closely related to the power system state is extracted from a time sequence constituted of a large amount of dynamic measurement datum; by setting different misclassification costs of stable power system and unstable state, a weight coefficient is introduced into a learning sample; a decision-making tree algorithm infused with the sample weight coefficient is used to perform classified learning so as to acquire a decision-making tree model; and the decision-making tree is used for online monitoring to implement evaluation to the power system transient state voltage stable situation.

The present invention discloses a flow resistance test system of valve flow and a method for performing a little micro flow test by using the same. The system comprises a water tank, a water pump, a pressurizer, a water collector I, a water separator, a water collector II and a back pressure regulating valve which are connected in order through pipelines. The water collector I is connected with the water separator through a plurality of parallel flow measurement pipelines with different pipe diameters, and flowmeters with different apertures are respectively installed on the flow measurement pipelines; the water separator is connected with the water collector II through a plurality of parallel valve test pipelines with different pipe diameters, and valves with different apertures to be tested are respectively installed on the valve test pipelines; and the water collector II or the pipeline at the downstream of the water collector II is connected with a weighing device which is easy to accurately measure the little micro flow. According to the invention, the flow capability of the flow resistance test system of valve flow may be obtained by measuring the differential pressure through adoption of a Bernoulli equation; the flow resistance coefficient of the flow resistance test system of valve flow may be obtained according to measurement values such as flow velocity, differential pressure and the like; and moreover, the flow capability and the flow resistance coefficient of valves to be tested in various conditions may be accurately measured.

The invention relates to a rail adjustment system for a motor vehicle seat, wherein the rail adjustment system includes an electromotive spindle drive and a threaded spindle that can be coupled to a flexible drive shaft for the longitudinal adjustment of a rail pair. The rails of said rail pair are connected to one another by means of a retaining element, which includes an integrated guide duct for holding the drive shaft.

Provided is a method for evaluating dangerousness of water inrush from a coal floor. The method is characterized in that a principle component analysis method and a GIS space analysis method are combined, the influence factors and indexes of water inrush from the coal floor are graded in sequence, the basic data of the 17 graded indexes are obtained, R and S type principle component comprehensive analysis is carried out on the basic data, master control factors are screened out, a water inrush dangerousness evaluation formula is built according to the determined master control factors, master control factor thematic maps are built according to the GIS space analysis method, finally, all the thematic maps are overlapped according to the water inrush dangerousness evaluation formula, and a thematic map of the dangerousness of water inrush from the coal floor is obtained so that the dangerousness of water inrush from the coal floor can be evaluated accurately, reliably and quantitatively. The method has the advantages of being quantitative, visualized and the like, scientific bases can be provided for actual production, and the realistic positive guiding function on coal mine safety production is achieved.

The transport device for conveying products has several symmetrically configured, movable carriages having inverted U-shape, each carriage having permanent magnets, also has an endless guide rail for guiding the carriages and a linear-motor drive device to drive the carriages. Each symmetric half of each carriage has three running rollers projecting inwardly from sidepieces of the carriage. The three running rollers of the first half rest on first and second guide surfaces on a first side wall of the guide rail, and the three running rollers of the second half rest on first and second guide surfaces on the second side wall of the guide rail. Each guide surface is arranged at an acute angle to a longitudinal center plane of the transport device, and the two guide surfaces of each side wall are at an angle of 80° to 100° to each other.

A manually guided implement having a housing that accommodates an internal combustion engine for driving a tool. At least an upper handle extends in a longitudinal direction of the implement on an upper side thereof. A first antivibration element connects the handle to the housing, wherein a longitudinal central axis of the antivibration element is inclined relative to a longitudinal central plane of the implement.

The invention provides a method for mounting a steel-structure module in place. The method for mounting the steel-structure module in place comprises the steps that foundation bolts are mounted in place; a concrete foundation is poured; steel column base mortar lumps are arranged on the foundation; guiding devices and a horizontal jacking deviation correction device used for leveling a base are manufactured, and the guiding devices are arranged at the tops of the foundation bolts in a sleeving mode; bolt holes are formed in the base; steel columns are welded on the base; the steel columns and a steel-structure beam are assembled into a steel-structure frame in a prefabrication factory, technological pipelines are mounted in the frame, and thus the steel-structure module is formed; the steel-structure module is transported to a mounting position through a transport vehicle; and the relative positions between the bolt holes and the foundation bolts are checked, the module is lowered slowly through a transport vehicle hydraulic system, whether upper openings of the guiding devices are within the ranges of the bolt holes or not is checked in real time, and the guiding devices are dismounted after the steel-structure module is mounted in place accurately. By adoption of the method for mounting the steel-structure module in place, chambering of the bolt holes in the steel column base on a field can be avoided, and thus the construction quality is ensured; and slight horizontal movement can be achieved through the guiding devices, the self weight of the module and the horizontal jacking deviation correction device, and thus the purpose of mounting the module in place rapidly and accurately is achieved.

The invention provides a method for positioning a microseism event point. The method comprises the following steps: (a) determining a cross wave speed model and a longitudinal wave speed model according to acoustic logging data, a cross wave first arrival time from a predetermined perforation hole to a wave detector and a longitudinal wave first arrival time from the predetermined perforation hole to the wave detector; (b) determining a target function of the position about the microseism event point according to the cross wave speed model, the longitudinal wave speed model, the longitudinal wave actual first arrival time from the microseism event point to be positioned to every wave detector, and the cross wave actual first arrival time from the microseism event point to be positioned to every wave detector; (c) determining position of the microseism event point to be positioned by iterative operation on determined target function. The method for positioning the microseism event point avoids the problem of low resolution rate on depth direction for only adopting the positioning data of the longitudinal wave information, and improves the microseism positioning precision.

The invention relates to a vibration damping tool for machining thin-wall cylindrical workpieces. The vibration damping tool for machining the thin-wall cylindrical workpieces comprises a tool base, wherein the tool base is provided with an inner supporting device, and the inner supporting device comprises workpiece inner wall support pieces, a support piece top pushing block and a pushing block drive unit; at least three or more workpiece inner wall support pieces are uniformly arranged around the axis of the tool base and movably arranged on the tool base along the radial direction of the tool base; the support piece top pushing block is arranged in a middle space enclosed by each workpiece inner wall support piece and matched with each workpiece inner wall support piece in a wedge surface mode; the pushing block drive unit is connected between the tool base and the support piece top pushing block, and used for the support piece top pushing block to move up and down so as to achievesynchronous movement of each workpiece inner wall support piece along the radial direction of the base through the wedge surface. Compared with a scheme that hydraulic cylinders are arrayed along thecircumferential direction of cylindrical workpieces to support the cylindrical workpieces, the vibration damping tool for machining the thin-wall cylindrical workpieces has the advantages of being simple in structure and low in cost.

In a cabriolet motor vehicle (10) with a foldable roof, especially a foldable hardtop (12), with a rigid rear window (18) which is movable between a closed position in which it covers the vehicle interior, and a stowage position in which it is held in the stowage space (54) in the vehicle (10), the hardtop (12) has a front roof part (14) which can be connected to a transverse roof support (20) which borders the windshield and a rear roof part (16) which can be moved relative to it and which is coupled to it. Furthermore, the rear window (18) is made on a rear window element (18) which can be moved relative to the vehicle body and relative to the rear roof part (16).

The invention relates to a syringe-like mixing device, comprising a housing, in which a mixing chamber is formed, a piston, which can be slid in the mixing chamber from the proximal side, and a mixing element, which can be operated from the distal side. In order to ensure simple operation, the mixing device has a sealing cap, which seals the distal open end of the mixing chamber and which has a passage opening, through which an operating rod for the mixing element is guided. The sealing cap can be completely removed from the housing together with the operating rod and the mixing element. In order to discharge the mixing product, a second sealing cap can be placed onto the housing. Accessory parts can be connected to said second sealing cap. The mixing product can then be discharged as with a conventional injection syringe.

Machine for transfer pattern printing of a textile web, said machine comprising a centre roller (1), at least one pressure roller (2), a tension roller (3), a reversing roller (4) and an endless belt (5) which is of a width substantially corresponding to the length of the pressure roller (2). The endless belt (5) extends about the tension roller (3) and the reversing roller (4), and a first portion (8) of the periphery of the pressure roller (2) abuts and exerts a pressure on the centre roller (1). While in continuous contact with one another, a pre-printed pattern-carrying web (6) and the textile web (7) can pass between the centre roller (1) and the pressure roller (2) and here be subjected to a local compression. The endless belt (5) is guided around a second portion (9) of the periphery of the pressure roller (2), said second portion being positioned substantially diametrically opposite the first portion (8) of said periphery of the pressure roller, whereby the pressure exerted by the pressure roller (2) on the centre roller (1) is adjustable by an adjustment of the tension in the endless belt (5) by means of the tension roller (3).