74results about How to "Consistent clearance" patented technology

The invention discloses a clamping device for intermittently feeding films. The clamping device comprises a supporting base, a driving component, a fixed clamping piece and a movable clamping piece; the fixed clamping piece is fixedly arranged on the driving component; the movable clamping piece is movably arranged on the driving component; the structure of the fixed clamping piece is similar to that of the movable clamping piece; and each of the fixed clamping piece and the movable clamping piece comprises a base, a single driving cylinder, a horizontal supporting plate, an upper clamping plate, a lower clamping plate and a pair of linear bearings, the single driving cylinder is arranged along a vertical direction, the horizontal supporting plate is fixedly connected with a piston of the driving cylinder, the upper clamping plate is connected with the supporting plate through a pair of vertical guide shafts, the upper clamping plate and the supporting plate jointly form a frame structure, the lower clamping plate is positioned between the upper clamping plate and the supporting plate, and the linear bearings are respectively used for accommodating and installing the vertical guide shafts and are fixed at two ends of the lower clamping plate. By the clamping device for intermittently feeding films, the phenomenon of jamming or uneven pressure caused by double-cylinder drive can be avoided, damage of elements such as the cylinders is avoided by the linear bearings and corresponding structures, feeding accuracy and clamping stability are improved, and accordingly the films can be ensured to be accurately clamped and conveyed.

An integrated frame longitudinal beam connecting support comprises a base and a bumper mounting portion, a beam assembly mounting portion, a frame fixing portion and a plate spring mounting portion which are arranged on the base. The back of the bumper mounting portion is fixedly connected to the front end of the frame fixing portion through the beam assembly mounting portion, the bottom of the frame fixing portion is fixedly connected to the plate spring mounting portion, a sunken water tank mounting portion and a cab front suspension turning arm mounting portion are arranged between the beam assembly mounting portion and the frame fixing portion, a front-lower protective supporting base fixing portion is fixedly connected to the lower portion of the beam assembly mounting portion, and a front suspension vibration absorber mounting support is fixedly connected to the side of the beam assembly mounting portion; the base is integrated with the bumper mounting portion, the beam assembly mounting portion, the frame fixing portion, the plate spring mounting portion, the sunken water tank mounting portion, the front-lower protective supporting base fixing portion, the cab front suspension turning arm mounting portion and the front suspension vibration absorber mounting support. The support is in high integrated level, is reasonable in structure and has high mechanical strengthen.

The invention relates to the field of automobile part assembly tools, in particular to an assembly positioning tool and an assembly method for a four-bar linkage hood hinge. The assembly positioning tool comprises a first sample frame and a second sample frame. The first sample frame is used for positioning and installing a fixed leaf on the hinge. The second sample frame is used for positioning and installing a movable leaf on the hinge. The two sample frames are matched to assemble the four-bar linkage hinge. The first sample frame is used for positioning and installing the fixed leaf, and the distance between the fixed leaf and an automobile body column A is accurately positioned; the second sample frame is used for installing a hood, the distance between the movable leaf and the hood is accurately positioned, and the problem that assembly accuracy between the hood and the column A is not certain when the hood is opened and closed due to clearances between screw bolts and bolts is solved. In addition, the assembly efficiency is improved, the hinge installing difficulty is lowered, the structure is simple, use is convenient, and great promotional value is achieved.

The invention provides a three-way adjustable blind hinge, comprising a hinge, a hinge connecting block, a fixed pin, an adjusting block, eccentric pins, tightening screws, adjusting screws and nuts. Two eccentric pins rotate to carry out eccentric motion around a circular hole C1 and a circular hole C2; the flat head parts of the two eccentric pins respectively rotate in a strip-shaped hole C2 and a strip-shaped hole E2 of the hinge so that the hinge and the hinge connecting block generate relative motion in an X direction and a Y direction, thus realizing adjustment in the X direction and the Y direction; and meanwhile the adjusting screws are screwed in or out to adjust the distance between the hinge and the hinge connecting block, thus realizing distance adjustment between the hinge and the hinge connecting block in a Z direction. The hinge can realize free adjustment on clearance of a door leaf in three directions, and ensure the clearance consistency of assembly of the door leafand a doorframe in three directions.

The invention provides a wind guide plate. The wind guide plate comprises a plate body and a rotating supporting portion arranged on the inner side of the plate body. In the length direction, one end of the plate body is a driving rotating end driven through power, and the other end of the plate body is a driven rotating end; in the width direction, the two sides of the plate body are an installation portion used for installing the rotating supporting portion and a covering portion matched with a wind guide opening in a covering mode. The covering portion runs from the driving rotating end to the driven rotating end, the inner side of the plate surface of the covering portion is gradually twisted and shifted in the width direction of the plate body, and therefore the corner region, at the length and width joint of the plate body, of the covering portion has maximum deformation. In the use process of the wind guide plate, the tip end of the covering portion of the wind guide plate is subjected to combined action of gravity and the twisted and shifted structure, consistent gaps can be kept between the two sides of the wind guide plate in the length direction and a wind outlet, consistency of the covering structure that the wind outlet is covered with the wind guide plate is improved, and covering requirements of the wind guide plate are met. The invention further provides an air conditioner indoor unit and a method for reducing the gaps between the wind guide plate and a panel body.

The invention belongs to the technical field of bearings, and particularly relates to a plastic bearing with a good anti-seismic property. Aiming at the shortcoming and problem that an existing plastic bearing is prone to being abraded and shaking during movement, the following scheme is provided. The plastic bearing comprises a bearing inner ring; the outer ring of the bearing inner ring is movably sleeved and connected with a bearing outer ring; the two ends of the bearing inner ring are movably sleeved and connected with inner ring damping mechanisms in sliding sleeving connection with thebearing inner ring; the two ends of the bearing outer ring are provided with first sliding grooves in sliding sleeving connection with the inner ring damping mechanisms; first containing grooves are formed in the outer ring of the bearing inner ring in the axis direction in an array mode; and second containing grooves corresponding to the first containing grooves are formed in the inner ring of the bearing outer ring in the axis direction in an array mode. The plastic bearing can effectively ensure the effect that intervals between parts of the bearing inner ring and the bearing outer ring areconsistent, reduces friction force between the bearing inner ring and the bearing outer ring during movement, effectively avoids the influence of bounce of a rotary shaft during rotation on the bearing inner ring, and improves the anti-seismic property of the bearing inner ring.

The invention provides a microwave device cavity, a microwave device and an antenna. The microwave device cavity is suitable for installing a circuit board with a microwave circuit, and comprises an inner cavity, two opposite side walls of the inner cavity are provided with a first neck and a second neck, the first neck and the second neck face each other, the circuit board can be inserted into the first neck and the second neck, and the first neck is higher than the second neck, so that the lower plane of the first neck supports the back side of a pad. The first neck and a second neck are formed in the side wall of the inner cavity; a circuit board can be inserted into the inner cavity; for a thin circuit board, the heights of the first neck and the second neck are larger than the thickness of the circuit board, the first neck and the second neck are arranged in an up-down staggered mode, the lower plane of the first neck makes contact with the circuit board, the back side of the bonding pad of the circuit board is supported, and therefore the stability of the circuit board is improved when a cable is welded in a microwave device.

The invention discloses a pull-up push-down driven reverse push garbage incinerator, which comprises a feed hopper, a feeding mechanism, grates, a heath, a grate lee chamber, a slag falling well and a slag discharger, wherein the grates are divided into static grates and dynamic grates, the static grates and the dynamic grates are arranged alternately up and down to form a column, a dynamic gratedrive consists of an upper section and a lower section, the driving mechanism of the upper section is arranged at the upper end of the grates, and the driving mechanism of the lower section is arranged at the lower end of the grates; and an air chamber is formed below the grates, and an electric air door is arranged on an air inlet pipeline of the air chamber. The garbage incinerator has the advantages that: the movement speed of the grates of each section is adjustable, and the grates can be properly lengthened, so that the burning treatment time is prolonged; the incinerator of different capacity can be combined; and the grates of each column are independently driven and do not interfere with one another, so the incinerator has simple structure and can be modularized. The intertwined garbage cluster is easily scattered, and the garbage is mixed uniformly and burnt stably; the incinerator is provided with a heat expansion absorption device, so that the grate sheets are not blocked due to expansion; and the air quantity of the air chamber can be adjusted, so that the garbage can be stably burnt.

The invention discloses a self-centering mechanism for large-diameter centering rotary equipment. The rotary equipment comprises a fixed part and a rotating part, wherein the self-centering mechanism is arranged between the fixed part and the rotating part; one of the fixed part and the rotating part is cylindrical while the other one is provided with a corresponding inner cavity; the cylinder is located in the inner cavity; a roller path is arranged on the outer circumferential surface of the cylinder; the self-centering mechanism comprises at least two groups of rolling units, wherein at least one group of rolling units are adjusting units used for adjusting the position of the rotating part; at most one group of rolling units are positioning units, and the positioning units are arranged at the positioning reference of the fixed part; and the rotating part concentrically rotates relative to the fixed part through the adjusting units. According to the self-centering mechanism for the large-diameter centering rotary equipment, an aligning tool does not need to be additionally arranged, automatic centering is achieved, the assembly precision of a rolling pair is high, stress is balanced, and the self-centering mechanism is suitable for an inner centering outer rotation mechanism or an outer centering inner rotation mechanism.

The invention relates to a switch cabinet door plank lifting mechanism, comprising a cabinet body frame and a door plank. A first door lifting fixed part is fixed on one side of a cabinet body frame lock and is plate-shaped; a second door lifting fixed part is arranged on one side of a door plank lock; and the middle part of the second door lifting fixed part is linear, and each of two ends of the second door lifting fixed part has a buckle structure corresponding to the plate shape of the first door lifting fixed part. The switch cabinet door plank lifting mechanism has the beneficial effects that after the door plank is closed, the gap of the door plank is automatically adjusted to ensure that the gap of each door plank is the same, so that the door plank of a switch cabinet is not easy to droop, and the quality of the switch cabinet is ensured.

This application relates to the technical field of start-up control of steam turbines, in particular to a method for temperature-state start-up control of steam turbines in trough-type solar thermal power plants, which includes: when the shaft seal is put into operation, delay the start-up time of the shaft plus fan, and when the low-pressure cylinder When the pressure of the shaft seal rises to 5KPa, start the shaft adding fan; the temperature of the steam supplied to the shaft seal is controlled to be 20-25°C higher than the temperature of the high-pressure cylinder to ensure the superheat of the steam supplied to the shaft seal; The compressed air source of the oil gear is withdrawn, and it is re-introduced after the steam turbine is connected to the grid; when the warm state is started, the temperature of the shaft seal behind the high-pressure cylinder is controlled at 160-175°C; When controlled below ‑0.2mm. This application has the effect of being able to solve the temperature start-up stability of the new unit of the domestic trough-type photothermal power station, ensure the smooth start-up of the new-type steam turbine, and meet the use requirements of the new-type steam turbine of the trough-type photothermal power station.

The invention discloses a production line for automatic assembly and bonding of surface inductance cores. The turntable in the turntable assembly on the main support adopts eight-station indexing drive, each station is provided with a jig; the main support is also provided with Display and operation panel and electrical control unit; the turntable is indexed and transposed clockwise. Station 1 is equipped with opening component 2, base pick-up assembly, assembly sending mechanism, finished product pick-up assembly, and station 2 is equipped with tin-adhesive glue unit , station three is equipped with ccd detection unit, station four is equipped with bad sorting unit and opening assembly one, station five is equipped with ring magnetic core picking assembly, station six is ​​equipped with height inspection assembly, station seven Equipped with mesh belt conveying, soldering mesh belt furnace and opening component 3, there is a finished product picking assembly between station 7 and station 8; the point-stick tin glue used is composed of tin powder, silver powder, resin, acetone , acetate, rosin and water are mixed. The invention has novel structure and reliable product quality.

The invention provides a rear wheel of a direct-current brushless permanent-magnet motor, belonging to the field of mechanical technology. The invention solves the problems that the current rear wheel of the direct-current brushless permanent-magnet motor is inconvenient to install, and the cost is high. The rear wheel of the direct-current brushless permanent-magnet motor comprises a wheel hub. A ring-shaped fixed strip is fixedly connected to the wheel hub, a plurality of mounting holes are evenly distributed on the fixed strip, each mounting hole is internally provided with a magnetic steel, and between two adjacent magnetic steels is a gap. The rear wheel of the direct-current brushless permanent-magnet motor has the advantages of being convenient in installation and low in productioncost.

The invention relates to the field of automobile part assembly tools, in particular to an assembly positioning tool and an assembly method for a four-bar linkage hood hinge. The assembly positioning tool comprises a first sample frame and a second sample frame. The first sample frame is used for positioning and installing a fixed leaf on the hinge. The second sample frame is used for positioning and installing a movable leaf on the hinge. The two sample frames are matched to assemble the four-bar linkage hinge. The first sample frame is used for positioning and installing the fixed leaf, and the distance between the fixed leaf and an automobile body column A is accurately positioned; the second sample frame is used for installing a hood, the distance between the movable leaf and the hood is accurately positioned, and the problem that assembly accuracy between the hood and the column A is not certain when the hood is opened and closed due to clearances between screw bolts and bolts is solved. In addition, the assembly efficiency is improved, the hinge installing difficulty is lowered, the structure is simple, use is convenient, and great promotional value is achieved.

The invention discloses a connecting pipe and flange assembling device, belongs to the technical field of oil and gas field connecting pipe assembling, and aims to solve the problems that manual connecting pipe flange assembling efficiency is low through a skid mounted unit and assembling quality is difficult to guarantee. The assembling device comprises an L-shaped operating platform, a fixing support member, a rail, a flange fixing member, a flange, a rotary shaft, a locking nut, a planar pushing ball bearing, a deep groove ball bearing and the like. According to the device, by controlling the coaxiality during connecting pipe and flange assembling, high accuracy of connecting pipe and flange assembling is guaranteed, and consistence requirements of assembling gaps and unfitness of butt joint in the same batch can be improved; in addition, by adjusting the device once, rapid assembly of connecting pipes and flanges in batches can be implemented, labor force is saved, and assembling efficiency is improved.

The invention discloses electronic equipment which comprises a first housing and a panel connected with the first housing, wherein the panel comprises a main panel and a first side plate extending out of one edge of the main panel; the first housing comprises a top plate and a second side plate extending out of one edge of the top plate; a blocking part is arranged on the second side plate; the second side plate is located on the outer side of the first side plate; and the blocking part is clamped on the inner side of the second side plate to prevent the second side plate from moving relative to the first side plate.