32results about How to "Avoid direct installation" patented technology

The invention discloses a rotary tribological behavior simulation test bed for realizing vibration decoupling. The test bed comprises a test bed base. A lower friction sample is arranged on the test bed base, an upper friction sample is arranged above the lower friction sample, a rotating system is arranged between the lower friction sample and the test bed base, the upper friction sample is connected with a loading system, and an acceleration sensor and a three-way force sensor are arranged on the loading system. The rotating system is arranged to drive the lower friction sample to rotate; the loading system is arranged to control the friction contact loads required by the upper friction sample and the lower friction sample; on the basis of the non-contact working principle of the air bearing, interference signals caused by structural resonance of a supporting device, vibration of a driving part and the like in a test and interface friction self-excited vibration signals are decoupled, so that influence factors of the interface tribology behavior of the rotary friction pair are researched and analyzed, and an evolution rule and a regulation and control method of the interface tribology behavior of the rotary interface are explored.

The invention is applicable to the technical field of security and protection, and provides an electronic lock control method, a system and a server. The method comprises when a mobile terminal receives unlocking request information, acquiring biological characteristic information and sending the biological characteristic information to the server; comparing the biological characteristic information and characteristic templates corresponding to a to-be operated electronic lock by the server, and sending an unlocking instruction to the electronic lock when the comparison between the biological characteristic information and any one characteristic template in the characteristic templates is successful; and executing the unlocking operation according to the unlocking instruction by the electronic lock. According to the technical scheme, the biological characteristic identification technology is applied to electronic locks, the household antitheft security grade is improved, direct installation of biological characteristic identification equipment in a household entrance guard is avoided, and the production cost of the household entrance guard is helped to be reduced.

The invention relates to an adjusting mechanism for a flexible coupled radial single-axle bogie with independently rotating wheel. Two elastic coupling mechanisms are arranged symmetrically by taking a link joint between a front bodywork and a post bodywork as a center. The structure of one elastic coupling mechanism goes as follows: a C point of a right angle tumbler BCD is pin-connected with a back single-axle bogie; a B end of a link bar AB is connected on the B point of the right angle tumbler BCD through a spherical hinge; an A end of the link bar AB is connected with a front single-axle bogie through the spherical hinge; a D end of a link bar DE is connected with a D end of the right angle tumbler BCD through the spherical hinge; an E end of the link bar DE is connected with a piston in a cylinder barrel through the spherical hinge. Two springs under the state of compression are arranged respectively above and below the piston in the cylinder barrel. The cylinder barrel is fixed on the back single-axle bogie. The length of the link bar AB and the link bar DE is the same. Two arms of the right angle tumbler bear the same length. The adjusting mechanism for a flexible coupled radial single-axle bogie with independently rotating wheel in the invention has the advantages of reasonable structure and good steering capability and solves the steering problem of independently rotating wheel from the engineering application perspective.

The present invention provides a radio compass tester, and relates to radio compass system testing. The radio compass tester comprises a direct current power supply circuit, an alternating current power supply circuit, an audio frequency output testing interface, a sync output testing interface, and a tester main body, wherein the direct current power supply circuit is connected with the tester main body, the direct current power supply circuit is used for inputting 28 V direct current to the tester main body, the alternating current power supply circuit is connected with the tester main body, the alternating current power supply circuit is used for inputting 26 V / 400 Hz alternating current to the tester main body, the tester main body is respectively connected with a radio magnetic indicator, a converter and a compass receiver, the audio frequency output testing interface is connected with the tester main body, and the sync output testing interface is connected with the tester main body.

A synchronous driving mechanism with multiple eccentric shafts installed in parallel. A synchronous gear box is installed on the input end of multiple eccentric shafts installed in parallel on the vibration bearing seat. Synchronous gears are installed in the synchronous gear box. Each synchronous gear Corresponding to an eccentric shaft, each synchronous gear and its corresponding eccentric shaft are connected and driven by a coupling with compact structure, flexibility, and the ability to transmit torque at a constant speed. The corresponding shaft distances between the eccentric shafts are equal, and the synchronous gear is driven to drive the eccentric shafts to rotate. The invention solves the problem of the synchronous driving mechanism of multiple eccentric shafts installed in parallel.

The invention belongs to the technical field of power distribution tests, and particularly relates to a comprehensive test device and method for a primary power distribution device, the comprehensive test device comprises a control unit, a power supply unit and a load unit, and the control unit comprises a KVM assembly, a test host and an interface conditioning box which are in communication connection in sequence; the interface conditioning box is electrically connected with a signal interface box used for providing a signal acquisition interface and a power switching device used for supporting common loading of a plurality of channels, and the output end of the power switching device is electrically connected with a power interface box used for providing a power supply / load interface. According to the invention, functions and performance of a tested product can be comprehensively tested, whether each test item is qualified or not can be rapidly judged, the test mode is efficient and accurate, the safety and reliability of use of a primary power distribution device are better guaranteed, the direct installation of a fault product is avoided, the system test efficiency and quality of aircraft assembly are improved, and the aircraft accident rate is reduced.

The present invention belongs to the technical field of aircraft testing. The horizon sensor tester is characterized by comprising a first single-pole single-throw switch S1, a second single-pole single-throw switch S2, a first fuse F1, a second fuse F2, a first ammeter A1, a second ammeter A2, and testing holes Va, Vb, Px, Py, Pz, Rx, Ry and Rz. According to the present invention, with the horizon sensor tester, the horizon sensor can be subjected to power consumption check, warning flag retracting time check, indication precision check, synchronizer output check, directivity check, correction speed check, correction incisal angle check and rotor stop time check so as to completely detect various performance indexes of the product.

The invention belongs to the technical field of avionics tests, and especially relates to a vertical gyro tester. The vertical gyro tester is composed of a first single-pole single-throw switch (S1), a disconnecting switch (S2), a quick switch (S3), a first single-pole double-throw switch (S4), a second single-pole double-throw switch (S5), a third single-pole double-throw switch (S6), a fourth single-pole double-throw switch (S7), a fuse radar pitch lower end output terminal F, a first ampere meter (A1), a second ampere meter (A2), a voltage meter (V), and test holes (Rx, Ry, Rz, Px, Py, Pz, Rh, Rc, Ph, and Pc). When a worker uses the provided vertical gyro tester to detect a vertical gyro, the external connection is simple, and the operation is convenient. On one hand, the vertical gyro tester can test the overall performances of a vertical gyro, thus the disqualified vertical gyro will not be applied to an airplane, and the efficiency and quality of airplane assembly are both improved; on the other hand, the fault points on a disqualified finished product can be rapidly found out by the vertical gyro tester, and a worker can quickly find and repair the fault points therefore.

The invention belongs to the technical field of aircraft electrical testing, and particularly relates to a high and low torque pressure switch tester. The switch tester comprises single-pole double-throw switches (S1) and (S2), indication lamps (L1) and (L2), a fuse (F) and a voltmeter. A DC source is connected with the single-pole double-throw switch (S1) via the fuse (F), one end of the single-pole double-throw switch (S1) is connected with the single-pole double-throw switch (S2), the other end of the single-pole double-throw switch (S1) is connected with the voltmeter, one end of the single-pole double-throw switch (S2) is connected with the indication lamp (L1), the other end of the single-pole double-throw switch (S2) is connected with the indication lamp (L2), and the voltmeter, the indication lamp (L1) and the indication lamp (L2) are connected with the cathode end of the source. On one hand, the tester can perform comprehensive performance testing on a high and low torque pressure switch, a fault product is prevented from being directly installed, and the efficiency and quality of an aircraft assembly are improved; and on the other hand, the test process is simplified, and the working efficiency is improved.

The invention discloses an engine post-treatment system accessory integrated installation unit and installation method. The installation unit comprises an integrated support, an electronic metering pump, a solenoid valve, an air filter and a urea tank, the integrated support comprises a first support, a second support and a fixed hoop, the first support is used for mounting the electronic meteringpump, the solenoid valve and the air filter, the second support is used for mounting the urea tank, the rear end of the second support is fixedly connected with the first support, the fixed hoop is mounted at the front end of the second support, matched with the second support and used for positioning the urea tank, and a connecting hole is formed in the rear end of the first support and used forfixedly connected with a frame. According to the installation unit, the first support, the second support and the fixed hoop are integrated to from the integrated support, installation group holes are formed in the supports, a diesel engine post-treatment system is conveniently and rapidly mounted on a frame, various sub-parts of the system are conveniently disassembled and assembled, the numberof the installation supports is decreased, and light-weight working of the system is achieved.

The invention relates to a buffer assisted speed reducer of a material taking machine. The buffer assisted speed reducer comprises a motor, a coupler, a speed reducer, a gear coupling, an exposed gearand a gear shaft; the motor is connected with the speed reducer through the coupler, one end of the gear coupling is connected with an output shaft of the speed reducer, the other end of the gear coupling is connected with the gear shaft, a driving exposed gear is mounted on the gear shaft, and a driven exposed gear is meshed with the driving exposed gear; and crank slider is mounted on a gear shaft of the driven exposed gear to drive a claw trolley to perform reciprocating linear movement. The buffer assisted speed reducer of the material taking machine is compact in structure, can make equipment operate stably, has high transmission efficiency and good impact-resistant stability, remarkably reduces conditions of shaft breakage, bearing gear damage, case rupture, anchor screw breaking-off, box beam tearing and the like, solves the problem of rolling over of the equipment, can guarantee long service cycle of units and reduce equipment faults and has good safety stability.

The invention relates to the technical field of belt dismounting, in particular to a flexible belt dismounting device. The flexible belt dismounting device comprises a rotating wheel body and tensioning rods, the rotating wheel body comprises an outer wheel ring and an inner wheel ring, a plurality of rib plates arranged in the circumferential direction are arranged between the outer wheel ring and the inner wheel ring, an operation rod is installed on the outer wheel ring, and mounting grooves are formed in the rib plates. The tensioning rods are inserted into the mounting grooves, fasteners are arranged at one ends of the tensioning rods, and tensioning plates are arranged at the other ends of the tensioning rods. A belt pulley is fixed through the tensioning rods and the tensioning plates, the rotating wheel body is rotated through the operation rod, so that the belt pulley is driven to rotate, a hand of a maintainer is prevented from making direct contact with a meshing point of the belt pulley when the maintainer replaces a belt, potential safety hazards are eliminated, the risk level is reduced, and disability and other safety accidents are avoided; the tensioning rods are inserted into the mounting grooves, so that the tensioning rods are supported and guided, and the operation is simpler; and the rib plates are arranged between the inner wheel ring and the outer wheel ring, the weight of the rotating wheel body can be reduced, and mounting and dismounting are convenient.

A method for detecting a fuel quantity sensing annuciator includes steps: step 1, the fuel quantity sensing annuciator 5 inputs fuel quantity sensing signals into a conversion circuit 3; step 2, the conversion circuit 3 converts the fuel quantity sensing signals into voltage signals; step 3, the conversion circuit 3 sends the voltage signals to a panel meter 4, and the panel meter 4 displays a capacitance numerical value according to the acquired voltage signals.

The invention provides a tester for detecting the accuracy of a total temperature indicator. The tester comprises a power supply, potentiometers (102) and voltmeters (103). The potentiometers (102) correspond respectively to interfaces (104) of a total temperature indicator, the voltage of each potentiometer (102) is detected by the voltmeter (103), the voltage is adjusted to a theoretical voltage value of the total temperature indicator, and the potentiometers (102) are connected to corresponding cable plugs of the total temperature indicator (2) to obtain test values. Further provided is a method for detecting the accuracy of the total temperature indicator, and the method comprises the steps of A, converting the voltage of the power supply to 5V and accessing the tester (1) according to claim 1; B, testing the voltage of each potentiometer, and adjusting the voltage to theoretical voltage value of the total temperature indicator; and C, connecting each of the potentiometers (102) of the tester (1) to the corresponding interface of the total temperature indicator (2), and obtaining experimental results.

The invention discloses an anchor winch penetrating type belt brake. The penetrating type belt type brake comprises a brake mechanism and a control mechanism, wherein the brake mechanism comprises a first brake belt and a second brake belt, one end of the first brake belt is hinged to one end of the second brake belt, the control mechanism comprises a reduction gearbox, a transmission rod, an operation shaft and a push rod assembly, the reduction gearbox is fixed on the lower surface of a deck, one end of the operation shaft is located on the upper surface of the deck, the other end of the operation shaft is in transmission connection with the input end of the reduction gearbox; one end of the transmission rod is in transmission connection with the output end of the reduction gearbox, andthe other end of the transmission rod is rotationally mounted on the lower surface of the deck; and one end of the push rod assembly is sleeved on the transmission rod and is in threaded connection with the transmission rod, the other end of the push rod assembly is hinged to the second brake belt, and the push rod assembly is hinged to the lower surface of the deck. According to the anchor winchpenetrating type belt brake, the operation shaft is arranged on the upper surface of the deck, the brake mechanism, the reduction gearbox and the like are arranged on the lower surface of the deck, sothat the problem that the deck surface space occupancy is low due to the fact that the belt brake is directly installed on the deck surface is effectively solved.

The invention relates to a rate gyro tester, which comprises a single-pole single-throw switch (S1), a single-pole double-throw switch (S2), a single-pole double-throw switch (S3), a fuse (F1), an ammeter (A1), a positive testing hole (FLAG+), a negative testing hole (FLAG-), a positive output testing hole (OUTPUT+), a negative output testing hole (OUTPUT-), a first resistor (R1), a second resistor (R2), a third resistor (R3) and a fourth resistor (R4), wherein the first single-pole single-throw switch (S1) controls a power supply and is connected to the fuse (F1) and the ammeter (A1) in series, the middle position of the second single-pole double-throw switch (S2) is connected to the positive testing hole (FLAG+), the double throw terminals of the second single-pole double-throw switch (S2) are respectively corresponding to the first resistor (R1) and the second resistor (R2), the first resistor (R1) and the second resistor (R2) are connected to the negative testing hole (FLAG-), the middle position of the third single-pole double-throw switch (S3) is connected to the positive output testing hole (OUTPUT+), the double throw terminals of the third single-pole double-throw switch (S3) are respectively corresponding to the third resistor (R3) and the fourth resistor (R4), and the third resistor (R3) and the fourth resistor (R4) are connected to the negative output testing hole (OUTPUT-).

The first purpose of the invention is to provide a household appliance display screen door body comprising at least two glass panels which are used for jointly forming an outer decorative surface of a household appliance door body, wherein a display screen is arranged in one glass panel so as to be matched with the size of the display screen. The invention further provides a refrigerator. According to the household appliance door body, for door bodies with different length sizes, at least two glass panels are arranged to replace a whole glass panel to serve as the door body outer facing, so that the assembling difficulty of the door body outer facing and the door body frame is lowered, and the assembling accuracy requirement is lowered.

The invention belongs to the technical field of tool cars for children, and provides a multifunctional combined moving car for children. The device comprises a mobile vehicle, the mobile vehicle comprises a vehicle body, a vehicle seat and a fixed mounting sleeve, and the fixed mounting sleeve is fixedly mounted in the vehicle body; the saddle is detachably mounted in the fixed mounting sleeve; the baby placing basket is detachably mounted in the moving trolley, and is mounted in the fixed mounting sleeve; the baby placing basket comprises a steel reinforcement framework and mesh cloth, the steel reinforcement framework comprises a main net rack and a rotating rack, the steel reinforcement framework is provided with a main shaft, and the main shaft is arranged in the main net rack; the rotating frame is installed on the bottom face of the main net frame and rotationally connected with the main shaft. In conclusion, the multifunctional combined child moving trolley is reasonable in design and practical; particularly, the design can also realize front-back shaking and left-right shaking of the baby placing basket. Therefore, the baby can fall asleep conveniently. And the device is strong in overall structural property and suitable for families of two children.

The invention provides an acoustic pressure signal channel structure. The acoustic pressure signal channel structure comprises a channel body, wherein a cavity and a rheomicrophone are arranged in thechannel body; an incident window piece is arranged on one end of the cavity; a collection channel is arranged between the other end of the cavity and the rheomicrophone; the collection channel is connected with a collection port of the rheomicrophone; the cavity is communicated with the collection port through the collection channel. According to the acoustic pressure signal channel structure provided by the invention, the strength of a collected acoustic pressure signal can be amplified, detection on feeble signals is more sensitive, the rheomicrophone is prevented from being directly mounted in a photoacoustic cell, and interference to a sound field is reduced.

The invention discloses a communication tower lightning arrester convenient to install and a construction method, the communication tower lightning arrester comprises a bearing disc, the bottom end of the bearing disc is fixedly connected with a communication tower body, the periphery of the top end of the bearing disc is fixedly connected with a plurality of first support cylinders, and the top ends of the plurality of first support cylinders are fixedly connected with a first support ring; the periphery of the top end of the first supporting circular ring is fixedly connected with a plurality of second supporting cylinders, and the top ends of the second supporting cylinders are fixedly connected with a second supporting circular ring. The communication tower lightning arrester has the advantages that the lightning arrester device body is divided into the circular connecting rod, the fixing cylinder and the conical circular truncated cone, direct installation of the integrated device is effectively avoided, the risk when the integrated lightning arrester device is transported to a communication tower at a high position is reduced, the four fixing bottom plates are sequentially fixed to the top end of the second supporting circular ring. And the circular connecting rod is fixed by the four supporting rods, so that the shaking of the lightning arrester in use is avoided.