180results about How to "Small contact force" patented technology

The invention discloses a pneumatic soft pole-climbing robot. The pneumatic soft pole-climbing robot comprises a soft robot body, an electromagnetic clamping device, a driving control system and remote control equipment. The soft robot body is in an annular shape with an opening; and the section of the soft robot body is circular. A central accommodating cavity and a plurality of sealed air cavities are formed in the soft robot body. Three material layers with gradually increased rigidity are arranged on the soft robot body; and the three material layers are a deformation layer, a middle layer and a restriction layer. The electromagnetic clamping device comprises an electromagnet A and an electromagnet B which are arranged on two open end surfaces. The driving control system is arranged in the central accommodating cavity; and the driving control system comprises an inflation control valve, an air pump, a micro controller and a portable power supply. The portable power supply is used for supplying power to the electromagnet A and the electromagnet B; and the remote control equipment is in wireless connection with the micro controller. As the pneumatic soft pole-climbing robot is built by using a soft material, the pneumatic soft pole-climbing robot has very high adaptive capacity of the robot to environment, can be applied to climbing within or outside pole-shaped tubes, and can climb pipes which are bent to a certain extent.

A method is provided for picking up a chip 13 from a fixing jig 3 to which the chip 13 is fixed. The fixing jig 3 consists of a jig base 30 having a plurality of protrusions 36 on one side and a sidewall 35 having a height almost equivalent to that of the protrusion 36 at the outer circumference of the one side, and an contact layer 31 that is laminated on the surface of the jig base 30 having the protrusions 36 and that is bonded on the upper surface of the sidewall 35. A section space 37 is formed on the surface of the jig base 30 having the protrusions by the contact layer 31, the protrusions 36 and the sidewall 35, and at least one through hole 38 penetrating the outside and the section space 37 is provided in the jig base 30. The pickup method comprises the steps of fixing a chip, deforming the contact layer 31 by suctioning of air in the section space 37 through the through hole 38, and picking up the chip 13 completely from the contact layer 31 by suctioning the chip 13 from the upper surface side of the chip 13 by means of a suction collet 70.

A first contact and a second contact are inserted into one and the same inserting hole of a housing so that contact portions of the first and second contacts are facing to each other. The first contacts each include the contact portion at one end and a connection portion at the other end. The second contacts each includes a first piece having the contact portion at one end and a pressure receiving portion at the other end, a second piece having connection portion at an outer end, and an elastic jointing-portion for jointing the first piece and the remaining end of the second piece. A pivoting member includes an actuating portion, pushing portions, and anchoring holes. The pushing portions are pivotally moved between the pressure receiving portions and the connection portions of the second contacts, during which pivotal movement, the axis of rotation of the pushing portions is moved with their pivotal movement to achieve their compact rotation. The second contacts are each provided on the second piece with a fixing portion in the proximity of the elastic jointing-portion. The connector constructed as above described prevents the contacts from being warped or deformed when the pivoting member is being pivotally moved, and achieves a stable electrical connection, a reduced overall height of the connector and a high density of the conductors.

The invention relates to a contact system of a low-voltage circuit breaker. In the contact system, a first sliding shaft is a hollow tube, the connecting ends matched with the first sliding shaft, of a first spring and a second spring separately form a rotating supporting shaft; the both ends of the first sliding shaft are sleeved on the rotating supporting shafts respectively to constitute hinged connections; and the first sliding shaft fits with the first cam-shaped surface of the main body in a rolling friction manner. As the sliding shaft is hinged with the first spring and the second spring, the sliding shaft can rotate along the rotating supporting shaft; when the moving contact moves, the sliding shaft does not perform rigid friction, but rolling friction with the moving contact and the contact force is small, thus the rolling time is greatly shortened, namely the rejection time of the moving contact is shortened; and as the wear problem does not exist, the service life of the sliding shaft can be prolonged and the service life of the entire contact system is increased.

The invention relates to the technical field of robot speed reducers, in particular to a robot RV-C type speed reducer. The robot RV-C type speed reducer comprises four components of an input, a planet, a cycloid and an output and is characterized in that the radial clearance delta is approximately equal to the cycloid wheel expansion quantity, composite modification of positive equidistance and negative shifting distance is adopted for cycloid wheels, the eccentric-shaft eccentric segment phase difference is 179.7-179.95 degrees, semi-buried holes of a needle gear shell are provided with an oil groove, the semi-buried holes are cut with slow wire threads, a left rigidity plate is provided with three cylinder flanges which are evenly distributed, a first bearing is a cross roller bearing,and the cross section of extension ends of the eccentric shafts and an inner hole a planet wheel is extension inner cycloid equidistance curves. The robot RV-C type speed reducer has the beneficial effects that the radial clearance theoretical value delta is approximately equal to the cycloid wheel thermal expansion quantity, the robot RV-C type speed reducer will not get hot in running and is made to have good dynamic performance, the phase difference of two eccentric segments of the eccentric shafts is equal to 180 degrees-delta theta, the fact that the return difference is less than or equal to 1' is realized, the composite modification of positive equidistance and negative shifting distance is adopted, the contact stress is least, the semi-buried holes of the needle gear shell are provided with the oil groove, the cost is 55-70% lower, and the external dimension of the robot RV-C type speed reducer is the same as that of a Japanese robot speed reducer of the RV-C type and can be interchanged with the Japanese robot speed reducer of the RV-C type.

The invention provides a novel self-deformation modular soft robot of high adaptability and relates to the robot. The problems that an existing rigid modular robot is large in rigidity, difficult to deform and poor in adaptability, the existing soft robot is either complex in cavity but singular in function or in need of manual operation so that a module can be disconnected and reconfigurability can be realized are solved. The novel self-deformation modular soft robot comprises an elastic deformation body and two connection pieces, wherein the two connection pieces are arranged at the two opposite ends of the elastic deformation body correspondingly. Each connection piece comprises a shell cover, a shell, a spherical magnet, an elastic fixing body, an elastic connection piece body and an air pipe external connection piece. Shell inner cavities are provided with the spherical magnets. The shell covers, the shells and the elastic fixing bodies are buried into inner cavities of the elastic connection piece bodies, the elastic fixing bodies are fixedly connected with the elastic connection piece bodies, the elastic fixing bodies and the elastic connection piece bodies are provided with ventilating pipes communicating with the shells, and the elastic deformation body is fixedly connected with the elastic connection piece bodies. The soft robot is fabricated.

The invention relates to a multi-station silica gel air bag clamping device for clamping an ultrathin wall deep cylinder part and belongs to the field of microoperation and the micro electromechanical technology. The multi-station silica gel air bag clamping device for clamping the ultrathin wall deep cylinder part particularly comprises an air bag clamping head, a conical surface quick-insertion connector, a multi-station rotary table and a gas circuit system. The air bag clamping head comprises an air bag, a center retainer, a ring fastening gasket and a connection transition part. The conical surface quick-insertion connector comprises a quick-change connector plug and a quick-change connector socket. The multi-station rotary table comprises a 360-degree manual rotary table and a pinboard. The gas circuit system comprises a gas source, a filter, a pressure regulating valve, a speed controlling valve, a magnetic exchange valve and a gas pipe connector. The multi-station silica gel air bag clamping device for clamping the ultrathin wall deep cylinder part solves the problems that clamping of thin-wall parts is small in strength, poor in intensity, and deformation, invalidation and even damage are prone happening. Use of the quick-change connector and the multi-station rotary table can effectively achieve quick and flexible clamping and assembling of parts of different sizes and the same kind, facilitate operation and improve assembling precision and assembling efficiency.

The invention discloses an in-site measurement system of an aspheric die. The system comprises a contact probe, an air-floatation bearing, an optical interference system, an image collecting and processing system and software processing system; the optical interference system comprises a light source, a laser beam expanding system, an cat eye reflector, two reflectors, a polarized spectroscope, a 1 / 2 lambda wave plate, three 1 / 4 lambda wave plates, a beam splitting grating or a holographic beam splitting unit, a space filter and a Polaroid group; the image collecting and processing system comprises a CCD camera, an image collection card and a computer; and the software processing system comprises a phase calculation module, a surface coordinate conversion module, a curved surface fitting module and an error analysis module. The system and methods thereof have the advantages that the displacement measuring precision can reach the nanometer magnitude, real-time in-site measurement can be realized, interference of vibration noises can be avoided in the measurement process, and the measuring accuracy and stability are high.

It is an object to provide a fixing jig which can unmovably suction a chip group produced by segmenting a semiconductor wafer into pieces, and can suction one chip by detaching the chip selectively and reliably from the chip group. A fixing jig 3 is composed of a jig base 30 and an contact layer 31. A concave part 2 is formed on one side of the jig base 30. The concave part 2 is sectioned into small chambers 15 by a partition 12 having a height almost equivalent to that of a sidewall 35. The contact layer 31 is disposed on the upper edge of the sidewall 35 and the partition 12 for covering the concave part 2. A through hole 17 that is communicated with the outside is formed in each small chamber 15.

The invention discloses a flexible sealing structure of a rotary air pre-heater. The flexible sealing structure is a contact type sealing device and comprises a sealing sliding block, a regulation supporting seat and a supporting fixing plate; the sealing sliding block is rotatablely connected with the supporting fixing plate; the supporting fixing plate is relatively arranged on a radial baffle plate of the air pre-heater fixedly; the regulation supporting seat is fixedly connected with the supporting fixing plate; a compression spring is arranged between the regulation supporting seat and the sealing sliding block; the sealing sliding block is in contact with a fan-shaped plate or an axial arc-shaped plate of the air pre-heater; a reset regulation device is arranged between the sealing sliding block and the regulation supporting seat; two ends of the reset regulation device are respectively connected with the sealing sliding block and the regulation supporting seat; and the reset regulation device is used for regulating the maximal resilience modulus of the compression spring positioned between the sealing sliding block and the regulation supporting seat. By using the flexible sealing structure, through regulating the reset regulation device, the regulation of sealing acting force between a moving component and a stationary component in the air pre-heater is realized; the wear of a sealing surface is decreased; and the service life of a quick-wear part is prolonged.

A magnetic suspension driving system for superfinishing is composed of a constant-temp cavity controlled by cold-hot driver, guide track in said cavity, drive coils at both sides of guide track, suspending magnetic steel under it, drive unit on said guide track, the guide and drive magnetic steels relative to said drive coils. the permanent magnet, exciting coil and core of magnetic pole, which are relative to said suspending magnetic steel, force sensor and temp sensor. Its advantages are low static and dynamic friction forces, not losing all of sucking-floating force even if current is suddenly lost, high stability and high controllability.

A paring and cutting tool, and a therewith associated method, for the stripping and paring of pre-insulated pipe ends, in particular of the outside diameter of the medium-conveying pipe comprising a clamping unit for the reception of the pipe end, a guide unit for the feed movement of the stripping and paring unit, wherein the guide unit extends through the clamping unit, a cutting unit for separating the outer pipe and the insulating layer, a carrier and a stripping and paring unit, wherein the stripping and paring unit has a paring element, preferably a paring blade, and a stripping element, preferably a stripping contour, for the simultaneous stripping and paring of the pipe end, in particular of the medium-conveying pipe end.

The invention relates to a scroll compressor which includes a non-revolution vortex part and a revolution vortex part. An elastic deadening cavity for discharging air consists of a driving shaft which is supported by the bearing of a frame, the back lateral of the non-revolution vortex part and an upper casing commonly. The back lateral of the non-revolution vortex part is pressed to be in contact with the inner wall of the deadening cavity through a sealing component in a way of sliding. The deadening cavity is communicated with an air discharging cavity which is arranged on a motor side on the lower part of the compressor and is formed by a frame, a main casing and a sealing part in a way of sealing. The design optimizes the contact force between the non-revolution vortex part and the revolution vortex part and between the revolution vortex part and the frame in the maximal degree. The non-revolution vortex part under the pressure function of high-pressure gas in the deadening cavity on the back lateral of the non-revolution vortex part and the revolution vortex part under the pressure function of high-pressure fluid on the back lateral of the revolution vortex part are in closely contact with each other and are sealed axially. The non-revolution vortex part is arranged on an installation mechanism in a way of sliding upwards and downwards and can move axially within a certain range.

The invention provides a three-dimensional microscale measuring device and method based on a five-core fiber grating, and belongs to the technical field of precision instrument manufacturing and measurement. The device comprises a broadband light source, an optical spectrum analyzer, an optical circulator, a control computer, a multi-way optical switch and an external reference grating. The multi-way optical switch is communicated with a five-core fiber fan-out device through five single mode fibers. One end of a five-core fiber is connected to the five-core fiber fan-out device. A five-core fiber grating probe is fixedly installed at the other end of the five-core fiber through a probe clamp holder. The five-core fiber and the five-core fiber grating probe are connected to form a closed circuit. According to the method, the multi-way optical switch is controlled by the control computer to switch optical paths, the optical spectrum analyzer is used for measuring reflectance spectra of the fiber grating, and three-dimensional microscale measuring without temperature coupling is realized through a differential data processing algorithm. The three-dimensional microscale measuring device and method based on the five-core fiber grating have the advantages that accuracy is high, contact force is small, the device and method are not affected by the shadowing effect, and the service life of the probe is long.

The invention provides an aluminum alloy hub positioning fixture. The aluminum alloy hub positioning fixture adopts an upper trapezoidal metal taper sleeve and a lower trapezoidal metal taper sleeve, the lower trapezoidal metal taper sleeve is in contact with the central hole of a hub, and the upper trapezoidal metal taper sleeve is in contact with the cap section of the hub; the lower trapezoidal metal taper sleeve is mounted on a hollow shaft, and a metal pipe is arranged in the middle of the hollow shaft. During working, the hub is positioned and mounted on the lower trapezoidal metal taper sleeve via the central hole, the upper trapezoidal metal taper sleeve is in vertical contact with the cap section of the hub under the action of a cylinder.

The invention relates to an automobile door lock, belongs to the field of automobile engineering and discloses a novel ratchet-and-pawl mechanism capable of weakening impact and reducing abrasion andprovided with main and auxiliary pawls. The movable auxiliary pawl with a special-posture spring and connecting rod mechanism is constructed. The molding surface, making contact with a ratchet wheel,of the auxiliary pawl is a roller, and impact and abrasion between the ratchet wheel and the main and axillary pawls are reduced. The spring and connecting rod mechanism is composed of an auxiliary pawl connecting rod with the front end provided with the roller, and a spring in a hinged mode. The auxiliary pawl precedes the main pawl to make contact with the ratchet wheel. Impact of the ratchet wheel can be absorbed by means of the roller and the spring, and then the main pawl makes contact with the ratchet wheel. The special posture of the spring and connecting rod mechanism occurs when the centers of a roller rotary shaft, an auxiliary pawl rotary shaft and a spring support are collinear, the auxiliary pawl and the main pawl can be fast switched, and the effect that the main pawl locks the ratchet wheel is achieved. According to the novel ratchet-and-pawl mechanism provided by the invention, a safe locking characteristic of a general ratchet-and-pawl mechanism is kept, impact and abrasion between the ratchet wheel and the pawls are reduced, and the novel ratchet-and-pawl mechanism can be widely applied to door locks and other ratchet-and-pawl mechanisms.

The invention discloses a device for supporting and fixing seedlings, which includes a support plate, the number of which is three, a housing is arranged on the top of the support plate, and a fixing plate is fixedly connected to the inner cavity of the housing , the top of the fixed plate is movably connected with a movable block, both sides of the top of the fixed plate are fixedly connected with spring plates, the top of the spring plate is fixedly connected with the top of the inner cavity of the housing, and both sides of the movable block are fixedly connected with springs, One end of the spring away from the movable block is fixedly connected with one side of the spring plate. In the present invention, by setting the support plate, the housing, the fixed plate, the movable block, the spring plate, the spring, the damping plate, the opening, the protective block, the connecting groove, the square plate and the first bolt, not only the seedlings can be It is well fixed, and can reduce the contact force between the seedlings and the protective block, effectively protecting the safety of the seedlings, improving the aesthetics of the seedlings, and promoting the healthy and safe growth of the seedlings.

The invention relates to a yarn transverse device of winding unit on weaving loom preparing cross wind tube, comprising yarn guiding device, which is used to convey yarn transversely to wind tube; said yarn guide device is in finger shape, which is installed to move around pivot pin in limit range and move through generator driver. The finger yarn guide device is installed to be supported on vibration damper (20) through yarn conveying arm (18).

The invention provides a pump body component, a variable-capacity compressor and an air regulation system. The pump body component comprises a first compression portion, a second compression portion and a partition plate; the first compression portion and the second compression portion are installed into a whole body through a rotary shaft in a stacking manner and share the partition plate; the first compression portion comprises a first cylinder, a first roller, a first sliding sheet and a first bearing; the first roller is eccentrically installed on the rotary shaft and in the first cylinderand forms a first working cavity; the first sliding sheet is inserted into a first sliding sheet groove; the head end of the first sliding sheet is abutted against the outer peripheral wall of the first roller to divide the first working cavity into an air suction cavity and an exhaust cavity; the first sliding sheet groove is provided with a pneumatic drive cavity for the first sliding sheet; the pneumatic drive cavity comprises a tail end accommodating portion and a capacity enlarging portion; and the capacity enlarging portion is communicated with the tail end accommodating portion. By adopting the pump body component, the variable-capacity compressor and the air regulation system provided by the invention, the pressure pulsation in a sealing cavity of the sliding sheet groove can be greatly lowered, and the contact force between the sliding sheet and the roller is lowered, so that the running noise is lowered, and the reliability is improved.

The invention discloses a vortex machine and an electromagnetic mechanism thereof, and an electromagnetic air gap optimization method of the electromagnetic mechanism. The electromagnetic air gap optimization method comprises the following steps of (A), presetting the electromagnetic air gap value sigma0, and combining with the target pressure P0 to generate a 'rotating angle-current' relationshipcurve; (B), detecting a rotating angle value alpha(t), determining the current value of an excitation component according to the 'rotating angle-current' relationship curve, and adjusting the axial electromagnetic force; (C), detecting a current exhaust pressure P(t) and comparing the exhaust pressure P(t) with the target pressure P0, and reassigning the electromagnetic air gap sigma0 according to the comparison result; and (D), according to the electromagnetic air gap sigma0, redetermining the rotating angle-current relationship curve, combining with the current rotating angle value alpha(t)of a dynamic vortex disc to determine the current value of the excitation component, and adjusting the axial electromagnetic force. The electromagnetic air gap optimization method is used to correctthe assembly error and the electromagnetic axial force error caused by the electromagnetic air gap error caused by wear in the process of using.

Track-module bogie-suspension apparatus for attachment to a track module having a frame, a drive wheel and an endless track. The bogie-suspension apparatus comprises (a) a bogie assembly having a bogie mount, at least one rotatable ground-engaging bogie wheel thereon, and forward and rearward bogie-mount connections; (b) first and second load- and ground-responsive suspension joints spaced from one another in a forward / rearward direction; and (c) leading and trailing suspension elements each having an upper end and a lower end, the upper ends of the leading and trailing suspension elements rotatably attached to the first and second suspension joints, respectively, and the lower ends thereof rotatably attached to the rearward and forward bogie-mount connections, respectively.

The invention discloses a vortex machine, an electromagnetic mechanism thereof and a control method of the electromagnetic mechanism. The control method comprises the steps of (a) acquiring an angle-current relation curve according to the current exhaust pressure P(t) and the preset electromagnetic air gap sigma<0>; (b) adjusting the current I in an excitation component to enable the axial electromagnetic force in the electromagnetic mechanism to offset the axial air force; (c) judging whether the vortex machine is in a stable operation state or not, if yes, executing the step (d), and if not,executing the steps from (a), (b) and (c); and (d) adjusting the current I(t) in the excitation component according to the angle-current relation curve combined with the current vortex plate angle alpha(t) and then returning to the step (c). Through the method, the requirements for low contact force and high sealing performance between a moving vortex plate and a static vortex plate can be realized.

The invention relates to a rolling bearing (1), comprising rolling elements (4) and an outer race (2), wherein an outer shell (12a, 12b) of the outer race (2) comprises two circumferential grooves (10, 11) axially spaced at least by the amount of the axial extent of the rolling elements (4), and wherein a first part of the outer shell (12b) axially between the two grooves (10, 11) is radially retracted relative to a second part of the outer shell (12b) axially outside of the grooves (10, 11), and wherein the outer race comprises a substantially constant thickness in the area of the first part of the outer shell (12a). In order to provide a simple rolling bearing that is inexpensive to produce and fits in a standard installation space, the invention proposes that the ratio for each groove between a radial wall thickness (B) of said groove and an axial wall thickness (A) of said groove is in the range from 0.5 to 1.5, wherein the radial wall thickness (B) corresponds to the smallest radial wall thickness of the outer race, and wherein the axial wall thickness (A) corresponds to the smallest axial distance of the groove from an adjacent end face (14, 15) of the outer race.

The invention relates to a peak force tapping and twisting resonance combination method based on an atomic force microscope technology. According to the method, a combined mode of a peak force tappingmode and a torsional resonance mode is used for performing imaging and sample physical property measurement and representation, the peak force tapping mode is utilized to control the interaction between a tip and a sample, and the torsional resonance mode is utilized to measure transverse physical properties of the sample while the peak force tapping mode works. Through the method, the defect that the torsional resonance mode has a special requirement on the sample is overcome, and the problem that the vertical interaction force between the tip and the sample is large in the torsional resonance mode is solved.

The invention provides engineering surveying equipment for urban and rural planning, which comprises a bracket, the bracket comprises an annular seat body, the annular seat body is provided with supporting legs, the annular seat body is provided with a rotating ball in a ball socket matching manner, and the rotating ball is provided with a bearing plate for bearing a measurement equipment body above the annular seat body, the rotating ball is provided with a gravity block below the annular seat body, and a fine adjustment device is arranged between the gravity block and the rotating ball, so that the technical problem of improving the leveling precision is solved.