197results about How to "Increase positive pressure" patented technology

The invention relates to an inspection robot wheel-claw compound mechanism, comprising a walking drive mechanism and a front clamping mechanism and a rear clamping mechanism. A clamping motor is mounted on the top plate of an arm; the output shaft is matched with a screw with thread on a lifting plate through a screw rod; the lifting plate is sheathed on a vertical polish rod which is mounted at the lower side of the top plate; a front sliding plate and a rear sliding plate are respectively mounted in the front and the rear of the lifting plate; two sides of the lower side of the sliding plate are respectively provided with a guide groove, the bottom of which closes up to the middle; a left clamping jaw and a right clamping jaw are movably mounted on a horizontal moving screw rod, the two ends of which are connected with the vertical polish rod; sliding blocks on the clamping jaws are inserted in the guide groove; rolling wheels are mounted on the tail ends of the clamping jaws; the rear clamping mechanism has the same structure with the front clamping mechanism. In the invention, one motor is used to drive the clamping jaws to move in two directions, thus the structure is simple and the cost is saved; and meanwhile, the positive pressure between a walking wheel and a line is increased via the clamping action of the clamping jaw, thereby increasing friction force, realizing stronger driving capacity; the inspection robot wheel-claw compound mechanism of the invention has high clamping efficiency, light weight and wide application range.

The invention provides an obstacle-crossing mechanical arm suitable for a power transmission line inspection robot. The obstacle-crossing mechanical arm comprises a traveling mechanism and a supporting mechanism. The traveling mechanism comprises a traveling arm, a traveling wheel and a traveling motor, the traveling wheel and the traveling motor are installed at the upper end of the traveling arm, and the traveling wheel is connected with the traveling motor through a reduction gearbox. The obstacle-crossing mechanical arm further comprises an auxiliary traveling mechanism and two connecting rods, the auxiliary traveling mechanism comprises an auxiliary traveling arm and an auxiliary traveling wheel installed on the auxiliary traveling arm, one end of each connecting rod is connected with the traveling arm in a hinged mode, the other ends of the connecting rods are connected with the auxiliary traveling arm in a hinged mode, and the supporting arm is connected with the middles of the two connecting rods in a hinged mode. The traveling obstacle-crossing mechanical arm is simple in structure, traveling and obstacle crossing can be achieved through one driving motor, and the obstacle-crossing mechanical arm can be combined freely according to the overall structure of the inspection robot and is widely applied to moving and obstacle-crossing mechanisms of various power transmission line inspection robots.

The invention relates to a moving robot, in particular to a moving obstacle-crossing mechanism of an inspection robot, comprising a front moving mechanism, a front deflection mechanism, a bracket, a lifting mechanism, a rear deflection mechanism and a rear moving mechanism, wherein, the bracket is connected with the inspection robot, the lifting mechanism is hinged with the bracket, the front deflection mechanism and the rear deflection mechanism are symmetrically installed on the lifting mechanism, and the front moving mechanism and the rear moving mechanism are respectively installed on the front deflection mechanism and the rear deflection mechanism to be linked with the front deflection mechanism and the rear deflection mechanism. The advantages of the invention are as follows: the moving mechanism adopted by the invention has functions of both moving and gripping, which facilitates moving, climbing and obstacle-crossing; the adaptability to the road is good, the safety protection is good, and the invention is suitable for needs of field operation and moving on/down the line.

The invention discloses a high-effect dry friction damping spring vibration isolator and aims at providing a friction damping vibration isolator which is compact in structure, large in friction damp, high in load and good in environmental adaptation. According to the technical scheme, in a vibration environment, left friction pieces and right friction pieces of a disc-pressing upper cone spring (3) and a disc-pressing lower cone spring (6) perform reciprocating motion to axially extrude a right friction ring piece (4) and a left friction ring piece (9) on two sides, the left friction ring piece, the right friction ring piece, an upper guide umbrella disc (1) and a lower guide umbrella disc (5) are driven to perform constant friction motion on the inner wall of a housing (2), vibration mechanical energy is converted into heat energy so as to achieve vibration energy consumption and reduction. The high-effect dry friction damping spring vibration isolator utilizes low frequency of a conical spring and a damping characteristic of a symmetric semi-ring damping pad, can effectively inhibit spring fluctuation during high-frequency impact, also has composite multiple vibration isolation effect and has large damp under the low-frequency condition compared with a traditional rubber vibration isolator.

The invention discloses an automatic steel rail duplex rust removing machine. The automatic steel rail duplex rust removing machine comprises a rack, engines and wheels connected to the lower portion of the rack, and is characterized in that the two engines are adopted and distributed on steel rails on the two sides respectively, the automatic steel rail duplex rust removing machine further comprises two soft shafts and two steering gears, one ends of the soft shafts are connected with rotating shafts of the engines through couplers, the other ends of the soft shafts are connected with input shafts of the steering gears, output shafts of the steering gears are connected with blade grinding wheels, the rack is fixedly connected with two connecting pieces, vertical adjusting pieces are arranged above the steering gears and elastically connected with the steering gears, connecting rods of the connecting pieces are connected with the vertical adjusting pieces, a transverse spring pull rod is connected between the vertical adjusting pieces of the steel rails on the two sides, and the rack is connected with a drive component. The kinetic energy of the engines is directly transmitted to the blade grinding wheels through the soft shafts, a duplex structure is adopted, synchronous automatic constant-speed rust removing can be carried out on pedal faces of the two steel rails at the same time, and the rust removing quality and efficiency are greatly improved.

The invention relates to a mobile robot structure, in particular to a mobile robot being applicable to large span transmission line routing inspection, which comprises a front upper arm, a rear upper arm, a front lower arm, a rear lower arm and an electrical appliance box body, wherein one ends of the front and the rear lower arms are respectively installed on the electrical appliance box body, the other ends of the front and the rear lower arms are respectively and rotatably connected with one ends of the front and the rear upper arms through a front and a rear rotation mechanisms, and the other ends of the front and the rear upper arms are respectively provided with a travelling mechanism which travels on a transmission line and a clamping mechanism which clamps the transmission line; and the front and the rear rotation mechanisms have the same structure, and respectively comprise a rotation pair and a spring, one ends of the two upper arms of the mobile robot are respectively and rotatably connected with the other ends of the two lower arms of the mobile robot through the rotation pairs, and the springs which can rotatably reset the upper arms are arranged between the upper arms and the lower arms of the mobile robot. The mobile robot has the advantages of large climbing angel, off-line prevention, good safety protection, short obstacle navigation time, simple obstacle process, fault release function, wider application scope and the like.

The embodiment of the invention discloses a method and device for detecting the automatic sample injection of a laboratory liquid. The method disclosed by the embodiment of the invention comprises the following steps: controlling a microprocessor to enable a driving pump to enhance the positive pressure or negative pressure of a pipeline by extracting the gas in a connecting pipe and a cuvette; finishing the steps of sampling color comparison, liquid drainage, moistening and cleaning under the condition that no manpower participates in the operation; and regulating and controlling the on-off action of the corresponding valves when each operation is carried out. In the embodiment of the invention, the testing course is simple and rapid; and moreover, the control of the microprocessor is matched with the slow liquid injection and air exhaust action of the driving pump and the accurate monitoring of a liquid height detector for the liquid injection height of the connecting pipe, thereby overcoming the defects of air bubbles and water blockage because of the existing artificial liquid pouring and realizing the purposes of greatly reducing testing errors and reducing reagent water source waste.

The invention relates to an electric-hydraulic controlled power output clutch with a hydraulic brake, which comprises a power output clutch housing body, a coaxial seal ring, a driven hub, a driving friction plate, a driven friction plate, a baffle plate, a circlip, a brake friction plate, brake pistons, a driving hub, a screw return spring, a clutch piston and a bearing, wherein the driving hub and a shaft A of a power output clutch of a tractor form a key joint; the driven hub and a shaft B of a power output transmission case of the tractor form a key joint; the driving friction plate and the driven friction plate are installed between the driving hub and the driven hub; the screw return spring is installed between the clutch piston and the driven hub; the two brake pistons are installed at the back part of the power output clutch housing body; and the circlip is installed at the back part of the driven hub, the front part of the circlip is provided with the baffle plate, and the back part of the circlip is provided with the brake friction plate. The electric-hydraulic control on the combination, the separation and the brake hydraulic control of the power output clutch can be realized by an electromagnetic valve, thereby facilitating the control on the combination, the separation and the brake of the clutch by using a button switch in the cab.

The invention provides a positive pressure explosion-proof control cabinet. The positive pressure explosion-proof control cabinet comprises an air supply module, a pressure relief module, a control module, an abnormal alarm module and a power supply switching module, wherein the air supply module is matched with the pressure relief module to maintain positive pressure in a positive pressure chamber of the positive pressure explosion-proof control cabinet; the control module is electrically connected with the air supply module, the pressure relief module, the abnormal alarm module and the power supply switching module respectively; the abnormal alarm module is used for carrying out alarming on an abnormal operation of the positive pressure explosion-proof control cabinet; and the power supply switching module is used for controlling a power supply of a user electrical system in the positive pressure chamber of the positive pressure explosion-proof control cabinet. The invention further provides a control method of the positive pressure explosion-proof control cabinet. The positive pressure explosion-proof control cabinet and the control method thereof provided by the invention are stable in air supply and high in safety; and the problem of heat dissipation of the positive pressure explosion-proof control cabinet can be effectively solved, so that the energy conservation and environmental protection effects are reached; and the operating reliability and stability of the positive pressure explosion-proof control cabinet are improved.

An atmospheric pressure measuring apparatus allows a transmitter to transmit an acoustic wave for measurement of the atmospheric pressure. Air propagates the acoustic wave. A receiver receives the acoustic wave. Since the intensity of the acoustic wave changes to follow the variation of the atmospheric pressure, the atmospheric pressure can be measured based on the intensity of the acoustic wave received at the receiver. The atmospheric pressure is in this manner measured with such a simplified structure.

The invention discloses a straight wheel driven variable diameter pipeline inspecting robot, and belongs to the technical field of pipeline robots. The straight wheel driven variable diameter pipelineinspecting robot is capable of coping with complicated pipelines. The technical scheme is as follows: the structure of a driving unit is that two driving wheel systems are arranged on two sides of the rear end of a base plate, a universal supporting wheel is arranged on the front end of the base plate, and a variable diameter actively adjusting system is arranged on the base plate; the structureof a turning and centering system is that a square bar is vertically arranged, the lower end of the square bar is hinged with the front end of the base plate of the driving unit, the middle portion ofthe square bar is sleeved with a linear bearing, and a bearing connector is fixed on the linear bearing; and the structure of an inspecting unit is that a plurality of inspecting devices are arrangedon a shell body, the shell body is connected with the bearing connector through the bearing, one ends of a plurality of L-shaped like brackets are hinged on the shell body, the other ends of the plurality of L-shaped like brackets are provided with universal wheels, and a spring adaptively adjusting system is arranged between each L-shaped like bracket and the shell body. The straight wheel driven variable diameter pipeline inspecting robot is used for pipeline inspecting.

The invention discloses a tractor for magnetic levitation traffic installation routing inspection rescue. The tractor is composed of a bearing driving wheel (1), a loading driving wheel (6), a bogie (2), a tractor body (3), a power transmission system (4) and a driving braking system (5). The bearing driving wheel (1) walks on a sliding face (a1) of a rail F (A). The loading driving wheel (6) additionally walks inside a groove-shaped face (a2) opposite to the sliding face (a1) of the rail F (A), so that the friction area of the wheels and the positive pressure of the upper and lower wheels are increased, the frictional force is effectively improved, large traction is obtained, meanwhile, the interior of the groove-shaped face of the reverse face of the rail F is not affected by rain or snow or freeze weather, and it is better ensured that the larger traction is obtained.

A subsea fluids storage facility comprises a tank (11) for holding and separating fluids which is equipped with ballast capacity (14) and a separable base (12) to be deployed upon the seabed in shallow or deep water, and the storage facility is connectable to a surface production facility, especially a buoy (24) for processing fluids. In deep water the tank (11) is held at a depth above the base (12) for temperature controlled stabilisation of produced oil in the tank (11).

The present invention relates to an extrusion device (11) for compound-containing containers (6), including a receiving chamber (12) for the container (6), a piston rod (13) which is displaceable relative to the receiving chamber (12), a motor (21) for moving the piston rod (13), a trigger member (26) for generating a control signal in response to actuation of the trigger member (26), and a control unit (31) for controlling the motor (21). The control unit (31) has a power module for connecting the motor (21) to a power supply (19), and a separate signal input which is electrically connected to the trigger member (26). The power module connects the motor (21) to the power supply (19) when the corresponding control signal is present at this signal input. The present invention further relates to a method for controlling such an extrusion device (11).

The invention discloses a device for measuring friction force and film thickness of a lubricating oil film under different surface speeds, and the device comprises an experiment bench which is provided with a translation platform, and the translation platform can move linearly under the drive of a drive device. A main shaft system is arranged on the experiment bench, a glass disc is arranged on the main shaft system, and the glass disc can rotate. An arc-shaped guide rail is arranged on the translation platform. The rotating base is installed on the arc-shaped guide rail and can move along thearc-shaped guide rail, the loading system is installed on the rotating base, a steel ball of the loading system and the glass disc move relatively, and a rotating bearing in the rotating base converts friction force generated by relative movement into pressure which can be collected by a pressure sensor on the rotating base.

A pneumatic pipeline internal traveling device includes a frame, driving wheels and traveling wheels. The frame is provided with two traveling wheels, the driving wheels and two traveling wheels that are arranged sequentially in the direction of a central shaft of the frame, wherein seen from the axial direction, the traveling wheels are located at the lower semicircle of the frame, and the driving wheels are located at the upper semicircle of the frame; and on the radial distribution, the two traveling wheels are symmetric around an axis Y, the driving wheels are mounted at one end of a supporting arm through a pin shaft, the other end of the supporting arm is connected with a central shaft seat through a hinge, the central shaft seat is fixedly connected with the central shaft of the frame, the central shaft of the frame is glidingly sleeved with a sliding sleeve, the sliding sleeve is fixedly connected with a telescopic rod, the telescopic rod is connected with a driving cylinder, the sliding sleeve is connected with one end of a driving arm through a hinge, and the other end of the driving arm is hinged with the supporting arm; a pneumatic motor shaft, a rotating shaft of the supporting arm and a driving wheel shaft are equipped with chain wheels to transmit power from a pneumatic motor to the driving wheel. The pneumatic pipeline internal traveling device improves the positive pressures of the driving wheels and the traveling wheels on the pipeline wall, and is suitable for traveling in a steep pipeline.

The invention discloses a vibration damping device for a transplanting machine, and relates to the technical field of agricultural machinery. The vibration damping device comprises a base. A vibrationsensor is disposed on the base, and the base is fixedly connected with a buffering cylinder. A spring pipe is fixedly connected with the inner bottom of the buffering cylinder. A piezoelectric pieceis disposed at the bottom of the spring pipe. A cavity is formed in the spring pipe. The two inner sides of the cavity are each fixedly connected with an electrode deposited film and the cavity is filled with electro-rheological fluid. The end, away from the bottom of the buffering cylinder, of the spring pipe is fixedly connected with a piston block. A slide cavity is formed in the piston block.A controller, in cooperation with the vibration amplitude of vibration of the base, controls the intensity of an electric field between the two electrode deposited films in the spring pipe to controlthe yield strength of the electro-rheological fluid under the electric field, thereby controlling the buffering capacity of the spring pipe and effectively realizing a buffer vibration damping effectfor the corresponding vibration amplitude.

The invention relates to a straightly-inserted terminal with a low inserting force and a high extracting force. The straightly-inserted terminal comprises a cable connecting part and a wiring female terminal which are linearly connected, wherein the wiring female terminal comprises a slot; arc tubular side walls are arranged on two sides of the slot; two clearances are formed in the bottom of the slot and an elastic arm is formed between the two clearances; a central expanding part is formed in the middle of the elastic arm; and the width of the central expanding part is greater than the widths of two ends of the elastic arm. Due to the arrangement of the central expanding part, the stress area is increased when a male wiring terminal is connected, further a greater elasticity for the elastic arm can be generated and the elasticity is enabled to exert the action during inserting and the male wiring terminal is easily inserted; and in addition, after being inserted, the male wiring terminal can be stably connected and is extracted by using greater effort.

The invention relates to a hydraulic press for a multi-layer bamboo wood integrated material, in particular to hydraulic press equipment. The hydraulic press equipment comprises a hydraulic press and a high-frequency generator, wherein the hydraulic press comprises a rack, a base, a hydraulic cylinder, a pressure head, a template, a die cavity and a shielding plate, and multiple layers of heating electrode plates are arranged in the die cavity and comprise multiple layers of first heating electrode plates and multiple layers of second heating electrode plates; the multiple layers of first heating electrode plates comprise a fixed heating electrode plate arranged at the bottom of the die cavity, and multiple layers of movable heating electrode plates arranged on the fixed heating electrode plate, and the multiple layers of heating electrode plates are connected with a first output end of the high-frequency generator in parallel; the multiple layers of second heating electrode plates are the multiple layers of movable heating electrode plates, and each layer of second heating electrode plate is arranged between the first heating electrode plate at the upper side and the first heating electrode plate at the lower side; and the multiple layers of heating electrode plates are connected with a second output end of the high-frequency generator in parallel, and a processing medium is arranged between the first heating electrode plates and the second heating electrode plates. In the hydraulic press, an insulating plate does not need to be arranged at the bottom of the die cavity, the positive pressure of the hydraulic press can be improved, the heating speed is fast, and the heating can be uniformly carried out inside and outside, the multi-layer high-density bamboo wood integrated material can be pressed once, and the processing efficiency and the product quality can be improved.

The invention belongs to butterfly valve components and particularly relates to an improved connecting rod drive mechanism of a butterfly valve plate. The improved connecting rod drive mechanism comprises a valve body, a valve plate and a push-pull drive shaft which is located in the valve body and longitudinally driven by a parallel push-pull mechanism. The valve plate is located in the valve body, a triangular plate is perpendicular to the valve plate and a main shaft, the top end of the triangular plate is connected with the main shaft in a matched manner, the inner end of the lower portion of the triangular plate is hinged to a fixing base on the valve plate, the outer end of the lower portion of the triangular plate and the lower end of the push-pull drive shaft are movably assembled, and the valve plate achieves sealed locking or separating in a manner that the push-pull drive shaft drives the triangular plate and a medium conveying channel formed in the valve body. The two ends of the main shaft are in rotation fit with the inner wall of the valve body, the main shaft is driven by a rotary drive mechanism, and the main shaft and the triangular plate synchronously rotate in the radial direction. The improved connecting rod drive mechanism effectively solves the technical problem that in the prior art, the reverse sealing effect is poor due to single drive. The improved connecting rod drive mechanism has the beneficial effects that bi-drive can effectively increase force, and a certain reverse sealing property is achieved while the forward sealing effect is guaranteed.

The invention relates to an adaptive wind and sand prevention device for a wind generating set. The conventional equipment has poor wind and sand prevention capacity and a complex structure. In the device, an air filtering device consisting of a filtering net and a filter is adopted to filter external air in wind and sand environment; the filtered air is pressed into a cabin by a screw compressor; the rotation of a main shaft of a blower is transferred to the filter and the compressor through a belt pulley and gear transmission system in rational proportion, so that the filtering and boosting can be realized without additional power system; and the air pressed into the cabin ensures that the air pressure in the cabin is higher than the external atmospheric pressure, so that the wind and the sand cannot enter the cabin from a revolving pair or installation clearance of the cabin so as to realize a wind and sand prevention function.