421results about How to "Good work reliability" patented technology

The invention discloses a liquid pressure pipe leakage measuring method and apparatus which comprises the following steps: positioning the two sensors inside the measuring pipe on the two sides explored pipe wire of the tested leakage pipe to obtain the noise signal, doing high pass filter, signal amplify and auto-gaining to the noise signal, finding the corresponding audio range signal, sending the noise signal to the leakage location analysis system by the cable on by wireless type, ascertaining the time differential of the two sensors by the multi-analysis of the two signals by the leakage location analysis system, computing the distance between the leakage point to the two sensors by the time differential and the transmitting speed of the distance and the sound wave of the two sensors.

The invention relates to a two-dimensional high load-bearing large-caliber rapid control reflector. An outside surface of a rotating body and an inside surface of a supporting reflector frame of the reflector are both one part of a sphere surface. The two components are assembled in a mode that the spheres share the same spherical center and are in rigid connection with each other by a ball to form a rotary assembly similar to a bearing. The rotating body can universally rotate in the supporting reflector frame. Therefore, under the driving of a linear voice coil motor, the invention can realize high-frequency rapid two-dimensional rotation of the rotating body in the reflector frame and guarantees working stability and reliability of the rapid control reflector. On the other hand, the loads of rotating parts including a plane mirror is rigidly supported by the supporting reflector frame through the ball, which greatly improves bearing capacity and environmental suitability of the rapid control reflector.

The invention discloses a micro-accelerometer and a preparation method thereof, belonging to the technical field of processing micro inertia devices. The micro-accelerometer is arranged on a package substrate which is formed by stacking an upper surface plate, a lower surface plate and a plurality of middle substrates, wherein a signal detection circuit of the micro-accelerometer is attached on the upper surface plate; a sensitive element of the micro-accelerometer is embedded in the middle substrates, i.e. the middle substrates with cavities form a frame of the sensitive element; a flexible hanger and a sensitive mass block of the sensitive element are arranged in the cavities, and one end of the flexible hanger is connected with the sensitive element, while the other end is fixed on the frame; metal electrodes are respectively sputtered on the sensitive mass block and the surface of the frame corresponding to the sensitive mass block so as to form a flat plate sensitive capacitor, or a metal piezoresistive thick-film pattern is deposited at a connecting part of the flexible hanger and the inner side surface of the frame so as to form a metal piezoresistive strain gauge. The micro-accelerometer has high sensitivity and high-temperature resistance and can be fused into a whole with a system level package substrate, thus the micro-accelerometer has low processing difficulty and cost.

The invention relates to a system and a method for remotely monitoring automobile tail gas. The system comprises a monitoring main machine, an automobile owner mobile phone, a tail gas detection vehicle-mounted terminal and a global position system (GPS), wherein the tail gas detection vehicle-mounted terminal and the GPS are installed on an automobile. The tail gas detection vehicle-mounted terminal comprises a tail gas sampling mechanism, a tail gas sensing mechanism and tail gas analyzing mechanisms, wherein a gas inlet of the tail gas sampling mechanism is connected with an exhaust pipe, a gas outlet of the tail gas sampling mechanism is connected with an automobile silencer, the tail gas sensing mechanism and the GPS are electrically connected with each tail gas analyzing mechanism, the tail gas analyzing mechanisms are connected with the monitoring machine through a wireless network, and the monitoring main machine is connected with the automobile owner mobile phone through the wireless network. The tail gas detection vehicle-mounted terminal sends tail gas detection data and automobile position data to the far-end monitoring main machine which screens out the automobile exceeding emission level of tail gas and frequently running in urban areas and sends warning and rectification information to the automobile owner mobile phone of the automobile exceeding emission level of tail gas. By means of the system and the method for remotely monitoring the automobile tail gas, real-time monitoring and warning on the automobile tail gas are performed, control to automobile tail gas emission is strengthened, and air quality is ensured to be improved.

The invention relates to a control system of electric liquid ratio pump control asymmetry cylinder. Wherein, the oil gate A1 of electric liquid ratio pump (1) with closed-loop flux control system is connected to the single valve (4) oil gate A2, the single valve (7) oil gate A3, the overflow valve (8) oil gate A4, the overflow valve (9) oil gate A5, the flux division overflow valve (19) oil gate A6 and the asymmetry oil cylinder (18) rod chamber; the oil gate B1 of electric liquid ratio pump (1) is connected to the single valve (11) oil gate B2, the single valve (10) oil gate B3, the overflow valve (8) oil gate B4, the overflow valve (9) oil gate B4, and the liquid control single valve (17) oil gate B5; and the oil gate B6 of liquid control single valve (17) is connected to the non-rod chamber of asymmetry oil cylinder (18) and the maintenance-safety circuit. The oil feeding circuit, main pump zero flux unload circuit and pressure-limited circuit are arranged between the non-rod chamber and the rod chamber oil pip.

The numerically controlled vertical high precision honing machine in the field of mechanical technology includes main shaft driving mechanism of vertical honing head, radial micro feeding mechanism of honing strip, high speed smooth honing head reciprocating mechanism, and digital control system. The connection mode includes vertical setting of the main shaft driving mechanism of vertical honing head and the radial micro feeding mechanism of honing strip on the honing machine bed, connection between the main shaft driving mechanism of vertical honing head and the radial micro feeding mechanism of honing strip via the feeding sleeve, and the connection of the high speed smooth honing head reciprocating mechanism to the main shaft driving mechanism of vertical honing head and the radial micro feeding mechanism of honing strip via bearing. The present invention has the advantages of simple structure, reasonable layout, high stability and reliability, etc.

The invention relates to a real-time monitoring method for short-circuit current of a near zone of a transformer, and the real-time monitoring method is characterized in that three non-inductive resistors connected in series onto three current transformators at the secondary side of the transformer are used for sending acquired analog signals to an analog / digital (A / D) sampling unit through an isolation amplifier, a low-pass filter, an absolute converting unit and a range self-adaption unit; the A / D sampling unit is used for continuously acquiring the analog signals; a first processor is used for computing read current sampled data, screening to obtain a wavelike current effective value and the fault instantaneous value of break-variable of current and caching fault data at the fault occurrence moment to a dual ported memory; a second processor is used for receiving the fault data of the dual ported memory and communicates with an upper computer through a network interface to draw an oscillogram, and simultaneously, the second processor is used for performing statistics on the received fault data and storing to a large-capacity memory. According to the real-time monitoring method for the short-circuit current of the near zone of the transformer, acquisition, recording and analysis are performed on the short-circuit impact current at the secondary side of the transformer, and an accurate basis can be provided for the running state analysis and the maintenance of the transformer.

The present invention relates to a honing machine belonging to a mechanical technique field, including a spindle drive, a reciprocation drive mechanism, a work bench, a honing head feed mechanism, a honing head, a digital control system, and a pneumatic on-line measurement system; the honing head includes a main shaft, a set of coarse honing emery sticks and a set of micro honing emery sticks locating on the main shaft, the honing head is provided with a two-stage telescoping hydraulic cylinder which includes a first cylinder rod and a second cylinder rod, when the first cylinder rod is protruded, the coarse honing emery sticks are protruded outward to implement coarse honing under the action of the first cylinder rod, when the second cylinder rod is protruded, the micro honing emery sticks are protruded to implement micro honing under the action of the second cylinder rod; the work bench is provided with a first oil cylinder, the honing head is capable of moving up and down under the action of a cylinder rod of the first oil cylinder. The structure of the honing machine is simple, the layout is reasonable, the operation stability and reliability are all good, the machining precision is high, cost is low, and it is capable of implementing the honing machining of parts with an inner pore diameter from 10mm to 150mm.

The invention provides a lifting hand-pushing van, comprising a vertical frame which includes an enclosed frame formed by hollow pipes; the bottom of the frame is provided with a walking wheel; the vertical frame is connected with an object arranging frame in a sliding way; a lifting hoisting mechanism is arranged between the upper part of the vertical frame and the object arranging frame; the lifting hoisting mechanism consists of a pulley block, a traction rope, a mainshaft and a reverse rotary self-locking device. The invention is characterized in that the traction rope is a chain; the last crown block of the pulley block is a drive chain wheel which is fixedly connected with the mainshaft which is connected with a power source by the reverse rotary self-locking device; the invention also comprises a chain tensioning and intake mechanism consisting of a first cable wire, a first guide wheel, a first movable wheel and a first pulling spring section, and a backing tensile stabilizing mechanism consisting of a second cable wire, a second guide wheel, a second movable wheel and a second pulling spring section; the invention has the advantages of good strength of chain, being not easy to be broken or be disconnected from the wheel, reliable operation, and high safety.

The invention relates to a full-automatic slotting and drilling device which comprises a rack. A machine base platform is arranged in the middle of the rack, and a multi-station drilling mechanism is installed on the machine base platform in the transverse direction; the multi-station drilling mechanism is characterized by comprising a conveying clamping mechanism arranged in the transverse direction, a drilling mechanism is installed on one side of the conveying clamping mechanism, a slotting mechanism is installed on the other side of the conveying clamping mechanism, a feeding mechanism is installed at the back end of the conveying clamping mechanism in the longitudinal direction, and a drilling mechanism is installed at the back end of the conveying clamping mechanism in the transverse direction. The full-automatic slotting and drilling device is compact and reasonable in structure and convenient to use, the full-automatic slotting and drilling movement on a workpiece can be conveniently achieved, the working reliability is good, and the working efficiency is high.

The invention relates to a rigid load-bearing quick control reflector which belongs to the technical field of reflector devices; and the quick control reflector comprises a swing plate, a motor support seat, a locking nut, a round nut, four linear sound ring motors, a support base, a reflector base, a lens pressure plate, a plane reflector, a bearing pressure ring, a central shaft, a micro displacement sensor, a spherical support seat, a ball bearing, a limit nut, a limit screw and a joint bearing. A rotary body of the plane reflector and the support base are rigidly connected through the joint bearing; and the rotary body is rigidly supported by the ball bearing and the spherical support seat secondarily, so that the rotary body can universally rotate relative to the support base in the range of + / -25 degrees. Consequently, the high-frequency quick two-dimensional rotation of the rotary body can be realized under the driving of two pairs of linear sound ring motors which are distributed orthogonally, so that the working stability and reliability of the quick control reflector are improved; and simultaneously, a fully rigid support method improves the load bearing capability and the environment adaptability of the quick control reflector.

A brake control valve of an airplane is characterized in that two ends of a jet nozzle of a torque motor are communicated with those of a slide valve control cavity through an outlet of an orifice; the brake port of the brake control valve of the airplane is communicated with that of the slide valve through an oil line; a brake port oil filter is serially connected between the brake port of the slide valve and that of the brake control valve of the airplane; the oil inlet of a brake port pressure sensor is connected to the oil line between the brake port of the slide valve and the oil inlet of the brake port oil filter; the oil inlet is communicated with that of a change-over valve through the oil line; a solenoid valve is serially connected to the oil line between the oil inlet and that of the change-over valve; an inlet filter is serially connected between the solenoid valve and the oil inlet; the oil inlet of a flow controller is communicated with the oil outlet of the change-over valve through the oil line; and the oil inlet of the pressure sensor is communicated with the oil line at the outlet of the flow controller through a pipeline. The brake control valve has good working stability and reliability, and provides inlet pressure and outlet pressure signals.

The invention provides a micro rapid coin sorter comprising a container frame equipped with a transmission device, an arrangement device, a sorting device, a collecting and classifying device, a motor, and a hopper. The transmission device is arranged on the top of the container frame. The arrangement device and the sorting device are installed on the transmission device. The hopper is assembled on the top of the arrangement device. The outlet of the hopper is connected with the inlet of the arrangement device. The outlet of the arrangement device is connected with the inlet of the sorting device. The outlet of the sorting device is connected with the inlet of the collecting and classifying device. The micro rapid coin sorter may automatically sort coins with different specifications and achieve uninterrupted sorting and coin outgoing. When the micro rapid coin sorter is used, coins are poured into the hopper, stirred and arranged by an inner tooth pipe, and screened by a double-layer disc, thereby achieving sorting, collecting, and classifying integration. The sorted coins automatically drop into the container. The micro rapid coin sorter is small in size, compact in structure, high in sorting efficiency, fewer in errors, and easy and convenient to use and maintain.

Belonging to the field of measurement technologies, the invention relates to a fiber bragg grating based composite material thermal expansion coefficient measuring device and a measuring method. The device comprises a fixture (5), a standard test block (7), a composite material block to be measured (6) and a fiber bragg grating sensor (8). Specifically, one end of the fiber bragg grating sensor (8) is fixed with a free end of the standard test block (7), and the other end is fixed with the free end of the composite material block to be measured (6). The fiber bragg grating sensor, the composite material block to be measured, and the standard test block are placed in a temperature control box. The composite material block to be measured and the standard test block can expand after being heated, and their different change degrees can generate a pull effect on the fiber bragg grating sensor and cause changes of a grating central wavelength. By combining the fiber bragg grating strain sensitivity and a relative measurement method, accurate measurement of the thermal expansion coefficient in different length sections of a composite material can be realized.

The invention discloses a multi-functional underground dinting machine. The head part of a digging arm of the multi-functional underground dinting machine is connected with an operating head, while the tail part is provided with a support (2), a revolving device is arranged between the digging arm and a worktable, one end of a small arm (4) is rotationally connected with the operating head, while the other end is connected with a movable arm (5), a movable arm oil cylinder (6) is arranged above the small arm (4) and is communicated with an oil inlet pipe (10) and an oil return pipe (11) through a connecting pipe I(8) and an oil channel control valve (9) of an operating device, one end of a large arm (3) is rotationally connected with the movable arm (5), while the other end is rotationally connected with the revolving device, a large arm oil cylinder I(14) and a large arm oil cylinder II(15) are arranged above the large arm (3), and the large arm oil cylinder I(14) is communicated with the oil inlet pipe (10) and the oil return pipe (11) sequentially through a connecting pipe II(16), the large arm oil cylinder II(15) and the oil channel control valve (9) of the operating device.

The invention discloses a caliber-adjustable wrench. The wrench comprises a rack, wrench clamping jaws, a round groove, a rotary ring, a plurality of push rods and an adjusting device, wherein the rack comprises a handle area and a wrench area; the wrench clamping jaws are distributed on one end face of the wrench area in an annular shape and can slide back and forth in the radial direction of the annular shape; the round groove is formed in the other end face of the wrench area, and a plurality of first sliding grooves protruding in the radial direction and corresponding to the wrench clamping jaws in a one-to-one mode are formed in the periphery of the round groove; the rotary ring is arranged in the round groove in a rotary mode, a plurality of second sliding grooves corresponding to the first sliding grooves are formed in the end face of the rotary ring, and the second sliding grooves are obliquely formed; one end of each push rod is located in the corresponding first sliding groove and is correspondingly connected with one wrench clamping jaw, and the other end of each push rod is located in the corresponding second sliding groove; the adjusting device is connected with the rotary ring to drive the rotary ring to rotate forwards or reversely. The wrench can overcome the defect that an existing special tool can not change in-pair wrench holes in different gaps.

The invention discloses a bearing tester solving the problems that a traditional bearing tester cannot favorably simulate the practical conditions of a bearing, and the measured data has poor accuracy. The invention adopts the technical scheme that the bearing tester comprises a stand, a mounting seat arranged on the stand and a rotating shaft penetrating into the mounting seat and a radial loading device arranged on the stand, wherein the radial loading device and the rotating shaft are connected through a conveyer belt. The bearing tester is characterized in that the stand is provided with the axial loading device which comprises a punch and a power mechanism, and the end part of the punch applies an axial load on the rotating shaft under the driving of the power mechanism.

The invention relates to a low-speed shaft brake energy-efficiency test board and a test method thereof. The low-speed shaft brake energy-efficiency test board comprises a base, wherein a variable-frequency driving motor is fixedly installed on the base, one end of the variable-frequency driving motor is connected with a rotating coder, the other end of the variable-frequency driving motor is provided with a front-section main shaft by virtue of a first coupler, the front-section main shaft is provided with a main shaft bearing, a main shaft brake disc and a plurality of inertia discs, the end socket of the front-section main shaft is connected with a rear-section main shaft by virtue of a second coupler, a plurality of inertia discs are also installed on the rear-section main shaft, a tail portion of the rear-section main shaft is provided with a brake mating part, and the rear end of the brake mating part is provided with a brake mating part replacing apparatus; and the base is also provided with an inertia disc control apparatus for controlling the connection and disconnection of the inertia discs. By adopting the low-speed shaft brake energy-efficiency test board, the application flexibility is improved, and the working reliability and convenience are improved.

The invention discloses petroleum drilling and production equipment, a drilling table surface manipulator and a pipe column support mechanism. The invention discloses the pipe column support mechanism, comprising a first grabbing rod, a second grabbing rod and a telescopic driving piece, wherein a first connecting rod and a second connecting rod are hinged between the first grabbing rod and a first end of the telescopic driving piece; a third connecting rod and a fourth connecting rod are hinged between the second grabbing rod and the first end of the telescopic driving piece; a fifth connecting rod is hinged between the first grabbing rod and a second end of the telescopic driving piece; a sixth connecting rod is hinged between the second grabbing rod and the second end of the telescopic driving piece; the first grabbing rod, the first connecting rod, the second connecting rod and the telescopic driving piece are formed to a parallelogram mechanism; and the second grabbing rod, the third connecting rod, the fourth connecting rod and the telescopic driving piece are formed to a parallelogram mechanism. The pipe column support mechanism is simple in structure, compact in space layout, accurate and quick in positioning in pipe grabbing and excellent in working reliability.

The invention discloses aluminum alloy and an LED lamp substrate applying the aluminum alloy. The aluminum alloy comprises the following compositions in percentage by weight: more than or equal to 0.5 percent and less than or equal to 12 percent of Si, more than or equal to 0.1 percent and less than or equal to 1.5 percent of Mn, less than or equal to 1.2 percent of Fe, less than or equal to 4.5 percent of Cu, less than or equal to 0.5 percent of Mg, more than or equal to 0.005 percent and less than or equal to 0.85 percent of RE, less than or equal to 0.5 percent of inevitable impurities, and the balance of Al, wherein the RE is selected from at least one of La, Ce, Nd and Yb. The LED lamp substrate is provided with a copper plate and an aluminum alloy plate, and the copper plate and the aluminum alloy plate are jointed into a whole through high pressure forming. The aluminum alloy has excellent thermal conductivity and high temperature antioxidation performance, and is suitable for manufacturing the LED lamp substrate. The LED lamp composite substrate completely solves the problems of deformation and oxidation caused by uneven thermal expansion coefficients of two materials for the substrate and a lamp shell in the prior art, and contributes to manufacture of high power LED lamps in low cost.

Device (1) for the preparation of coffee, wherein a water / coffee powder mixture is introduced into a cylindrical space (10). The cylindrical peripheral wall (15) is made as a vertical screen and by rotation / centrifugation the prepared beverage is forced through the filter to the outside, whilst granular coffee material remains behind. The top part (17) and the bottom part (19) of the holder (16) are made such they can be moved with respect to the cylinder wall. The motor (26) for rotation is above or below the top part or, alternatively, bottom part. Furthermore, there is a construction for producing the displacement of the top part or bottom part of the holder with the same motor.

The invention discloses a wire rope loading performance nondestructive evaluation method which comprises the following steps of: utilizing the physical properties of wire rope component loading material and relatively low magnetic field intensity H to lead a wire rope component to have continuous and even small magnetic energy product; and identifying and extracting physical field change information of the loading material equivalently relevant to the mechanical property degradation single values such as bending, twisting and pulling resistance, and the like of the wire rope component by applying magnetic energy potential difference information analysis equipment in real time. The wire rope loading performance nondestructive evaluation technology realizes the tentative plan of comprehensive monitoring and real-time evaluation from the manufacturing completion of the wire rope component to the end of the security use value thereof, and provides an effective and feasible technical measure and a safety management technique mode for preventing man-made disasters and saving material resources, thus having very positive social benefit and extremely practical economic benefit.

The invention discloses a noise and vibration measurement system based on a virtual instrument technology, which is equipped with analogue signal input and analogue signal output. Signals can be input and output simultaneously or separately. An analogue signal can be input by two modes, i.e. IEPE sensor input and voltage signal input; and the output mode thereof is analogue voltage signal output. The input and the output are both connected with a data acquisition module through BNC wires, the data acquisition module is connected with a computer through a USB to input a sensor signal to the computer; and a computer software processing module integrates the following analysis and measurement modules: a spectrum analysis module, an octave band analysis module, a transfer function measurement module and a recorded signal viewing module.

The invention discloses a double-horizontal-shaft vibrating and stirring device with main blades and auxiliary blades. The double-horizontal-shaft vibrating and stirring device comprises a stirring barrel. Two stirring shafts are arranged in the stirring barrel. Each stirring shaft is sequentially provided with a pushing stirring tool, a plurality of main stirring tools and a return stirring tool in the axial direction. Each main stirring tool comprises the corresponding main stirring blade and the corresponding auxiliary stirring blade which are symmetrically arranged on the corresponding stirring shaft. During the rotation process of the stirring shafts, the directions of axial force and radial force which are generated on materials through the main stirring blades and the auxiliary blades are opposite. Vibration drive mechanisms meeting the dynamic balance condition are arranged on the stirring shafts, and can ensure forced vibration of the stirring shafts, stirring arms arranged on the stirring shafts, and the blades arranged on the stirring shafts. By means of the double-horizontal-shaft vibrating and stirring device, materials are fully stirred in the whole stirring barrel; and meanwhile low-efficiency stirring areas can be effectively eliminated, and the stirring quality and efficiency are improved.

The invention discloses a hydraulic control circuit of a winding mechanism. The winding mechanism comprises a winding rolling barrel (1), a first normally-closed-type brake (13), a reducer and a winding motor (2). An input end of the winding rolling barrel and an output end of the reducer are connected through a clutch (3). The first normally-closed-type brake is used for braking the winding rolling barrel, wherein a control opening of the first normally-closed-type brake is connected to a first electromagnetic reversing valve (12) through a braking oil channel; a first oil-supplying branch and a second oil-supplying branch are in parallel connection, and the first electromagnetic reversing valve is connected on a first pressure oil source (19) through the first oil-supplying branch and the second oil-supplying branch; the first pressure oil source selectively passes the first oil-supplying branch or the second oil-supplying branch to provide oil to the control opening of the first normally-closed-type brake; a control opening of the clutch (3) is connected to a second pressure oil source (17) through a clutch oil channel; and a second electromagnetic reversing valve (4) is in series connection with the clutch oil channel, and selectively ensures that the control opening of the clutch is communicated to the second pressure oil source or an oil tank. The first electromagnetic reversing valve and the second electromagnetic reversing valve are controlled through the same electrical switching. The hydraulic control circuit of the winding mechanism is high in reliability and construction safety.

The invention relates to a battery with a degassing system and to a method for dissipating substances emerging from a battery, by which means the gases and electrolytes which result from chemical activity can be dissipated using simple means in this way, and battery cells are protected against damage. The invention provides that the battery with the degassing system comprises a base plate (22) and at least one cell module (12) which is arranged on the base plate (22) and has at least one battery cell (16), wherein the battery cell (16) has an upper face (34), which is provided with cell terminals (14), and a lower face (36), which is provided with at least one degassing opening (18), and the base plate (22) has at least one aperture to a catchment area at the location of the at least one degassing opening (18), wherein the lower face (36) is arranged opposite the upper face (34) and the lower face (36) is arranged below the upper face (34) in the direction of the force of gravity.

It relates to a non-ferrous metal smelting and heat preserving composite furnace comprises smelting and heat preserving furnaces and through ways between them, control valve at the through way, featuring in one end of the said through way connecting with the bottom of the smelting furnace, the other end connecting with the heat preserving furnace bottom, and the outlet of the heat preserving furnace at the bottom of the heat preserving furnace. Compared with existing techniques, it can effectively avoid the consumption of evaporable and oxidizable metals, reducing material cost, improving production environment, and prevents unsatisfactory effect on the quality due to the drawing of air of the smelting metal. It does not interfere with the heat preserving furnace casting, keeping consistent alloy composition control with that of the detachable furnace, realizing feeding through furnaces, with the highest working temperature rising up to 1500 DEG C, with extensive application.

The invention provides an electronic control fluid-link steering system for a heavy-duty vehicle and a control method thereof. The steering system comprises an engine, a slip type electromagnetic clutch, a steering oil pump, a steering valve, and a power cylinder, wherein the steering valve is connected with a steering wheel through an angle sensor. The steering system further comprises an electronic control unit (ECU) connected with the slip type electromagnetic clutch and the angle sensor. By the adoption of the invention, when a vehicle performs pivot steering or low-speed steering, the electromagnetic clutch is jointed completely and the steering oil pump runs at a high speed along with the engine, so as to provide large assistant force and meet the requirements on convenience of low-speed steering; when the vehicle performs high-speed steering, the electromagnetic clutch is jointed partially and the steering oil pump runs at low speed, so that small assistant force can be provided, the requirements on operating stability at high speed can be met, the engine load is reduced and other power consumptions are reduced; and when no steering is performed, the ECU outputs extremely small current, and the steering oil pump runs at extremely low rotating speed, so that the power consumption of the engine can be extremely lowered.

The invention discloses an energy-saving type vibration exciter for a vibratory roller. The energy-saving type vibration exciter for the vibratory roller comprises first drive shafts and second drive shafts, and the first drive shafts and the second drive shafts are arranged in an interval mode. First connecting cranks extending upward are fixedly arranged on the first drive shafts, second connecting cranks extending upward are fixedly arranged on the second drive shafts, the first connecting cranks and the second connecting cranks are of the same length; fixing rods which are used for producing exciting force are fixedly arranged between the first connecting cranks and the second connecting cranks; and the fixing rods are parallel with the first drive shafts and the second drive shafts. The energy-saving type vibration exciter for the vibratory roller has the advantages of being simple in structure, reasonable in design, convenient to process, high in operational reliability, low in carrying out, good in operational stability, having long working life, being capable of reducing the energy in the vibration starting and vibration stop of the vibratory roller effectively, good in saving energy, good in practical applicability and high in popularization and application values.