41results about How to "Eliminate installation gaps" patented technology

The invention discloses a thermal deformation suppression middle type high-speed crown block gantry five-axis machining center. A workbench is directly cast on a base; a left bridge and a right bridge are installed on the two sides of the base; linear guide rails are installed on the left bridge and the right bridge correspondingly; a cross beam is installed on the left bridge and the right bridge through X-axis sliding blocks on the two sides; the middle of the cross beam is hollowed-out; four guide rails are arranged on the upper side and the lower side of the cross beam; and a left sliding base and a right sliding base are installed in the middle of the cross beam through the sliding blocks. A left ram and a right ram are connected into a whole through a Y-axis sliding block and a connection board, four linear guide rails are arranged on the rams, and the rams are installed in the middle of the left sliding base and the right sliding base through Z-axis sliding blocks. The middle type design of the movement components in the thermal deformation suppression middle type high-speed crown block gantry five-axis machining center effectively conduct temperature rise generated by movement, so that structural deformation is uniform and influence of thermal deformation on the precision machining of products is reduced. The thermal deformation suppression middle type high-speed crown block gantry five-axis machining center is stable in operation and performance and suitable for precision machining in the automotive die field.

A suspension assembly for an automotive vehicle includes a fixed bracket, a suspension arm mounted between two mounting flanges of the bracket, a spacer mounted in a bore of a flange of the bracket, and an articulation shaft mounted through the flanges, the suspension arm. and the spacer. The spacer includes an inner ring in which the articulation shaft is mounted An end face of the inner ring is adapted to be pressed, along a longitudinal axis of the shaft, against a lateral face of the suspension arm. The spacer includes, between its inner ring and the bore in which the spacer is mounted, a deformable sleeve, deformable along die longitudinal axis under a shear effort and adapted to slide with respect to the inner ring or to the bracket, along the longitudinal axis.

The invention belongs to the technical field of computers and particularly relates to the ruggedized computer case. The ruggedized computer case is characterized in that two sides of a printed board are connected with a wedge-shaped locking device, the wedge-shaped locking device is fixedly connected with a case body through a guide groove formed in the case body and comprises a wedge-shaped block, a left moving slide block, a right moving slide block, a locking screw and a guiding groove plate, the locking screw is sleeved with the guiding groove plate, the right moving slide block and the wedge-shaped block respectively, the left moving slide block and the right moving slide block are connected with the surface of the wedge-shaped block and can slide along the surface of the wedge-shaped block, the wedge-shaped block is fixedly connected with the guiding groove plate, and the guiding groove plate is matched with a guiding groove. The ruggedized computer case has the advantages that the case can be resistant to long-term vibration and impact and can ensure that electronic devices are not fatigue and are not damaged, and the service life is prolonged.

The invention relates to the technical field of vehicles, in particular to a power battery pack and a vehicle. The power battery pack comprises an outer shell with a cavity and a module contained in the cavity, the outer shell comprises an upper shell body and a lower shell body with an upward opening, the upper shell body comprises a plate body and an outer edge, and the outer edge extends downwards from the periphery of the plate body and inclines outwards. The plate body covers the opening of the lower shell through the outer edge, the lower shell comprises a boundary beam and a mounting box mounted on the boundary beam, in the height direction, the top wall of the boundary beam is flush with the top wall of the mounting box to jointly form the opening of the lower shell, and the top wall of the boundary beam is arranged adjacent to the top wall of the module. According to the power battery pack, through the structure, the top wall of the boundary beam is lifted, the required heightof the outer edge of the upper shell is reduced accordingly, the adverse effect that the cross sectional area of the outer edge is gradually reduced along with the increase of the height is weakened,and the space utilization rate of the cavity is increased.

A positioning and clamping device comprises a clamp body, a compression nut, a compression sleeve and an expansion sleeve. The clamp body is a stepped shaft, and an external thread is arranged on the cylindrical surface of one end of the clamp body. The compression sleeve is a hollow cone. The expansion sleeve is a cylinder, and an inner hole of the expansion sleeve is conical in the axial direction. Two or more expansion grooves A are uniformly distributed in the cylinder wall of the expansion sleeve. Workpieces are arranged on the outer circle of the expansion sleeve and jointly penetrate through the external thread end of the clamp body to be attached tightly to the step surface. The compression sleeve is installed in the conical hole of the expansion sleeve. The compression nut is connected with the external thread end of the clamp body, and the conical surface of the compression sleeve can squeeze the expansion sleeve to expand outwards by screwing the compression nut, so that clamping and positioning of the workpieces are achieved. A double-conical-surface expansion squeezing structure is adopted, so that no-fit-clearance positioning and clamping of the workpieces are achieved; in addition, the overall structure is scientific and reasonable, installation and using are convenient, the repeated positioning precision is high, and the manufacturing cost is low; the positioning and clamping device can be widely used for grinding or turning various workpieces with inner holes in a matched mode.

The invention provides a device and a method of flexible installation for installing a vehicle main dashboard and a vice-dashboard. The vice-dashboard component comprises a vice-dashboard main body and a triangular connecting piece. The flexible installation device comprises an installation part of the main dashboard for installing the vice-dashboard component. The installation part comprises elastic stoppers. Due to the fact that only the front end of the vice-dashboard main body is abutted against the elastic stoppers, joint of the vice-dashboard main body and the installation part of the main dashboard is realized, and installation and fixing position of the vice-dashboard main body relative to the installation part of the main dashboard is adjustable with the aid of the elastic stoppers.

The present invention discloses a suspension device (10) for suspending a ceiling light (26), monitor (28, 30), camera, or other medical device at a selectable height from a ceiling structure (12). A hanger tube (20) has a selected portion enclosed by a receiving element (42) having a varying inner diameter generally conforming to a truncated cone. A mounting plate (14) is rigidly connected to the top structure (12) and the receiving element (42). The mounting plate (14) has an opening, and one end of the hanging pipe (20) passes through the opening. A wedge-shaped element (48) has a varying outer diameter generally conforming to a truncated cone. The wedge-shaped element (48) is compressively inserted into the receiving element (42) and wraps a selected portion of the hanging pipe (20) so that the selected portion of the hanging pipe (20) is in the receiving element (42). The element (42) is squeezed and clamped.

A longitudinal member for retaining a stiffening spine and holding a wiper blade for a windscreen wiper of a window of a motor vehicle is disclosed. The member defines at least one longitudinal housing for receiving the spine and at least one longitudinal housing for receiving a heel of the wiper blade, at least one of the housings being delimited at least partly by a bottom wall and two side walls linked to the bottom wall, where the side walls have planar inner faces converging towards one another away from the bottom wall.

The invention relates to a base plate bearing device. The bearing device includes a load bearing frame, a plurality of base plate detaining units are arranged on the circumference of the load bearing frame, insulating support parts are arranged on the base plate detaining units, the insulating support parts comprise a first part corresponding to the surface of a base plate and a second part corresponding to the side face of the base plate, the base plate detaining units comprise a first area corresponding to the surface of the base plate and a second area corresponding to the side face of the base plate, the first part is arranged in the first area in an embedded mode, and the second part is fixedly connected to the second area. The base plate bearing device has the advantages that the first part of the support parts and the first area of the base plate detaining units are arranged in an embedded mode, the installation gap between the support parts and the base plate detaining units is eliminated, and the risk of fragmentation caused by the base plate being inserted into the gap is reduced.

The invention provides an electric brake actuator integrating a force sensor and a ball screw. A ball screw assembly is located in a shell; a nut is cylindrical and the screw is shell-shaped; spiral semicircular grooves are machined in the inner surface of the nut and the outer surface of the screw respectively; the radiuses of the spiral semicircular grooves in the inner surface of the nut and the outer surface of the screw are the same and spiral angles are the same; and after the spiral semicircular grooves in the inner surface of the nut and the outer surface of the screw are matched to form a round spiral groove, a closed spiral rolling path is formed and a ball rolls in the closed spiral rolling path. According to the electric brake actuator, the force sensor and the ball screw are integrated; the force sensor is located in an inner hole of the ball screw so that the loss in a force transmission process is reduced; and the measurement precision is improved to 3 per mill from 1% in the prior art. The electric brake actuator also has the advantages of simple structure and easiness in realization.

The invention provides an automatic clamp for external holding positioning and end face pressing for a thin-wall sleeve, and belongs to the field of machining. According to the automatic clamp, a clamp body is arranged on a transition flange, the left end of the clamp body is provided with a circular hole, and the right end of the clamp body is provided with a conical hole; an external holding elastic sleeve is concentrically arranged in the clamp body, the left end of the external holding elastic sleeve is matched with the circular hole of the clamp body, and the right end of the external holding elastic sleeve and the conical hole of the clamp body form a conical surface holding-tightly structure; a column body of a pressing rod is matched with an inner hole at the left end of the external holding elastic sleeve, a disc spring is arranged between the column body of the pressing rod and the inner hole at the left end of the external holding elastic sleeve, a rod body of the pressing rod extends out of the clamp body through a through rectangular groove in the external holding elastic sleeve and the clamp body, and the pressing rod is connected with a machine tool pull rod throughusing a screw; an end face pressing sleeve concentrically sleeves on the clamp body, and L-shaped through grooves on the pressing sleeve is buckled with the rod body of the pressing rod; an internal supporting ring, an external supporting ring and supporting rods form a frame to sleeve on the two sides of the external holding elastic sleeve and the pressing rod; and the thin-wall sleeve is placedin an inner hole of the right end of the external holding elastic sleeve, and is axially positioned by the external supporting ring, the external holding elastic sleeve holds the thin-wall sleeve by the pressing rod through the disc spring, the end face of the thin-wall sleeve is pressed by the end face pressing sleeve at the same time, and the problem of clamping deformation of the thin-wall sleeve is solved.

Provided is a special-shaped guide hopper suitable for a novel pressure vessel system. A collection barrel is installed on the inner side of a pillar of a novel blow-off valve and communicated with alateral guide cover, and then a special-shaped device which can meet special requirements of the novel blow-off valve and has collection and guide functions is formed. The whole structure is simple and practical. The material passing rate is high. There are fewer residues in the hopper, and no material accumulates in the hopper.

The invention discloses an air conditioning system for a railway vehicle. The air conditioning system mainly comprises an air duct, an air conditioning unit, a controller and a drain pipe, the air duct is located on an indoor roof. The air-conditioning unit is arranged in the middle of the air duct; the controller is used for controlling the air-conditioning unit to work; the drainage pipe is used for draining rainwater and condensate water of the air conditioning system out of the automobile. According to the air-conditioning system, the air duct below the air-conditioning unit is integrated to the air-conditioning unit, so that the mounting gap between the air-conditioning unit and the air duct is eliminated, the clear height in a vehicle is increased, the design of the air duct is simplified, and the comfort of a passenger room is improved. Therefore, according to the air conditioning system of the railway vehicle, the structural design of the air conditioning system can be simplified, the comfort degree of a passenger room is improved, and the problems in the field at the present stage are solved.

The invention discloses a mounting mechanism and radiotherapy equipment. The mounting mechanism comprises two side supports which are separately connected with two sides of a radiation head, a top support which is connected with the tops of the side supports and a positioning support, wherein the top support is connected with the top of a machine frame; the positioning support is connected with the machine frame and is located between the side supports and the machine frame; and the thickness of the positioning support is adjustable. In the radiation head mounting process based on the mountingmechanism disclosed by the embodiment of the invention, favorable mounting rigidity can be obtained, and besides, favorable mounting accuracy can be guaranteed; and in the mounting process, repeatedly assembling and disassembling the radiation head is not needed, the mounting process is notably simplified, and the mounting difficulty is reduced.

The invention discloses a seat sliding rail universal unlocking structure. The seat sliding rail universal unlocking structure includes a left sliding rail assembly and a right sliding rail assembly,wherein the structure of the left sliding rail assembly is the same with the structure of the right sliding rail assembly. The left sliding rail assembly comprises a lower rail and upper rails. The lower rail and the upper rails are slidably connected. A locking mechanism is arranged between the lower rail and the upper rails. The locking mechanism further includes an unlocking handle for unlocking the locking mechanism. The unlocking handle comprises a rotating connecting rod and a universal connecting mechanism. The two ends of the rotating connecting rod are connected with the two upper rails through the universal connecting mechanism. The universal connecting mechanism comprises a ball head, a spherical bushing and a maintaining frame. According to the seat sliding rail universal unlocking structure, synchronous unlocking of sliding rails with the inner sides and the outer sides of different heights / different back and forth / different heights and different back and forth is achieved; the spherical bushing extrudes the maintaining frame through a self extruding spring, clearance after the left sliding rail assembly and the right sliding rail assembly are installed can be eliminated through the ball head and the connecting rod, the influence on the sliding rails due to the mounting position deviation of a skeleton can also be reduced, and the internal stress in a system afterthe whole seat is fixed is eliminated; and the seat sliding rail universal unlocking structure is simple in structure, good in synchronization and smooth in unlocking.

The invention relates to a blade radial rotation angle measuring device, which is used for measuring and recording a rotation angle corresponding to the radial direction of a blade during blade torque measurement, and belongs to the field of geometric quantity measurement. According to the device, a fixed shaft is matched with a blade torque measuring device, a rotary drive plate is used for installing a circular grating ruler for angle measurement, a reading head is installed at the end of the fixed shaft, and the radial structural symmetry of a rotary part of the device is guaranteed. The rotating drive plate is used for positioning and clamping the blades, and a symmetrical structure is designed, so that additional torque brought to the device in the rotating process is avoided. The angle of the original position is controlled by using the rotating drive plate and a group of magnets with seats of the fixed shaft, so that the consistency of the initial measurement angles after different paddles are clamped is ensured, and the repeatability of angle measurement is ensured. The spring plunger is used for eliminating a gap needed by clamping and a tiny angle difference generated during forward and reverse rotation switching, and the accuracy of blade angle measurement is guaranteed.

The invention relates to an installation system of a crystalline silicon solar panel. The installation system of the crystalline silicon solar panel comprises a roof beam, a first metal frame, a second metal frame, two overturning sealing frames, a penetrating screw and an abutting assembly. Crystal silicon plates are mounted on the first metal frame and the second metal frame, wherein the first metal frame and the second metal frame are matched with each other, the penetrating screw is arranged on the first metal frame and the second metal frame in a penetrating mode and fixed to the roof beam, top clamping plates are arranged at the top of the first metal frame and the top of the second metal frame, clamping strips are arranged at the two opposite ends of each top clamping plate respectively, and an inclined binding face is formed between the two clamping strips. The installation system of the crystalline silicon solar panel is relatively tight in installation and convenient for preventing water from entering.

The invention belongs to the technical field of parking spaces, and particularly relates to a fireproof partition wall for electric vehicle parking spaces. According to the technical scheme, the fireproof partition wall for the electric vehicle parking spaces comprises a transverse partition wall body, wherein the transverse partition wall body is connected with a plurality of longitudinal partition wall bodies, the transverse partition wall body and the plurality of longitudinal partition wall bodies define a plurality of electric vehicle parking spaces with one side being open, and mounting seats are connected between the transverse partition wall body and the ground and between the longitudinal partition wall bodies and the ground correspondingly. The electric vehicle parking space partition wall can block fire spreading.

The invention discloses a surface tube assembly for a guardrail, which comprises a surface tube and an expansion joint. The surface tube is provided with a slope at one end, and the bottom of the surface tube is provided with a groove. The ends are respectively inserted into the grooves of the two surface pipes, and the two surface pipes are butted on the inclined surface. Fasteners are installed on the expansion joints. The inner wall of the groove of the surface pipe is tightly connected. The surface pipe assembly has the advantages of simple structure, convenient installation and effective improvement of connection strength.

The invention provides a shear resistant expansion bolt, and belongs to the technical field of mechanical structure design. The shear resistant expansion bolt comprises an inner core, an inner seam bushing, an outer seam bushing and a nut; the inner core comprises a rod body of which the outer diameter is changed in the axial direction, an outer threaded segment is connected with the end, with larger outer diameter, of the rod body to adapt to the mounting nut, and a pulling assembly is connected with the end, with smaller outer diameter, of the rod body to pull the rod body in the axial direction; the inner seam bushing sleeves the inner core, the inner diameter of the inner seam bushing is matched with the outer diameter of the rod body of the inner core, and the sizes of the outer diameters of all sections of the inner seam bushing in the axial direction are same; the outer seam busing sleeves the inner seam bushing, and the inner diameter of the outer seam bushing is matched with the outer diameter of the inner seam busing; strip-shaped through holes in the axial direction are formed in the inner seam bushing and the outer seam bushing respectively. The shear resistant expansion bolt structure can eliminate the mounting gap of the bolt, improve the reliability of shear structure assembly, and meet structure assembly requirements of bearing shearing loads.

The invention provides a method and device for integrating a kitchen range on a cabinet table top and relates to the technical field related to kitchen utensils. According to the technology, the height of a furnace end and a switch device of the kitchen range is increased by thickness of the cabinet table top, and the position, where the kitchen range is installed, of the cabinet table top, a furnace end hole is formed in the cabinet table top corresponding to the size, the shape and the position of the furnace end, a switch hole is formed in the cabinet table top corresponding to the size, the shape and the position of the switch device, the kitchen range is arranged below the cabinet table top, a furnace end can extend out of the furnace end hole, the switch device extends out of the switch hole, the furnace end and the switch device are fixed on the cabinet table top, so a kitchen range panel is integrated on the cabinet table top, the cabinet table top and the kitchen range panel are combined into one, an installation gap between the kitchen range panel and the cabinet table top is eliminated, cleaning is facilitated, and production and installation cost is low, and maintenance, disassembly and assembly are simple.

The invention relates to a mounting mechanism for T profiles. A half portal frame structure is provided with a main beam; the main beam is provided with two T-shaped mounting mechanisms capable of moving; the T-shaped mounting mechanisms comprise walking cars, and middle column pressing mechanisms connected with the walking cars; rotating mechanisms are arranged between the walking cars and the middle column pressing mechanisms, and are connected with rotating arms; the middle column pressing mechanisms are provided with support platforms and electromagnetic lifting mechanisms matched with therotating arms; the rotating arms are perpendicular to the support platforms; and electric blocks for grabbing the T profiles are arranged at the two ends of the rotating arms. The mounting mechanismcan realize automatic grabbing, positioning, mounting and pressing of the T profiles in use and absorption of mounted steel plates, improves the mounting precision of the T profiles, can adapt to mounting of the T profiles with various specifications in any appointed position, achieves high automation and intelligence degree, effectively improves the positioning and assembly efficiency, greatly reduces the labor intensity of workers, and improves the production efficiency.

To effectively reduce noise caused by an attachment part of a cam chain guide without increasing a pressing force of a cam chain tensioner more than is necessary. A cam chain guide for slidably guiding a cam chain at a valve gear of a four cycle engine is made of resin. An attachment hole for an attachment bolt is provided at an attachment end section for the crankcase. Side surface projections are provided equally spaced at the periphery of an attachment surface surrounding the attachment hole so as to project from a normal surface. Annular recesses are formed at the peripheries of each of the side surface projections. Furthermore, inner surface projections are provided at the inner peripheral surface of the attachment hole equally spaced about the periphery so as to project in a central direction.

The invention discloses a beam target for an ion thruster ground test. With the beam target of the invention adopted, pollution caused by sputtered sediments generated in an ion thruster ground ignition test can be effectively decreased, and sputtered sediments on the beam target can be cleaned with easiness, and the beam target is convenient to use. The beam target of the invention comprises a temperature measuring component, a high-purity graphite target surface, a heat absorbing target body, an insulation supporting column, a reflecting screen and a heating body; the inner surface of the heat absorbing target body is an arc-shaped surface; a plurality of rectangular high-purity graphite blocks are spliced with one another so as to form the high-purity graphite target surface; the high-purity graphite blocks are flatly laid on the inner surface of the heat absorbing target body; the heat absorbing target body is of a tubular fin structure; a heat-conducting medium is communicated with the interior of the tubular fin structure; the heat absorbing target body and the reflecting screen are installed at two ends of the insulation supporting column respectively; and the heating body is installed on the insulation supporting column. With the beam target of the invention adopted, sputtered materials caused by high-energy electronic sputtering can be effectively decreased; the target surface is of an arc-shaped structure, so that the sputtered materials can be deposited near the beam target, and therefore, sediments which are returned to the surface of the ion thruster can be decreased, and the service life of the ion thruster can be prolonged.

The invention relates to a lever system and a domestic vegetable cutting device using the lever system and belongs to the technical field of domestic goods. The lever system and the domestic vegetablecutting device using the lever system aim at solving the problem that at present, people often cut fingers during vegetable cutting, and vegetables are not cut neatly. A supporting system is used forsupporting a swing system and a stepping driving device, the swing system can conduct reciprocating rotation motion around one point on the supporting system, the swing system can drive the steppingdriving device to do synchronous linear motion during swinging, and the swing system is provided with a tool rest sliding sleeve capable of sliding along the swing system. By means of the lever systemand the domestic vegetable cutting device using the lever system, the fingers can be prevented from being cut, and in addition, accurate moving of a mechanical structure is used so that the vegetables can be cut tidily and consistently.

The invention belongs to the technical field of angle displacement measurement, in particular to an integrated triple redundancy angle displacement measurement device, and aims at overcoming the defects in the prior art and meeting the requirements for the measurement of a pivot angle of a spray pipe of a novel servo system and feedback control. The integrated triple redundancy angle displacement measurement device comprises a displacement sensor assembly (1), an upper bolt assembly (2-1), a lower bolt assembly (2-2), an adjusting bolt (3), an upper support lug (4) and a lower support lug (5). The adjusting bolt (3) is provided with a left thread and a right thread. The displacement sensor assembly (1) is a potentiometer type displacement sensor made of high-precision conductive plastics. Three resistor assemblies (12) are evenly distributed on three surfaces of a base (11), and electric brushes corresponding to the resistor assemblies (12) are evenly distributed on three surfaces of a brush holder assembly (15). The brush holder assembly (15) is fixed on a connecting rod (14) through shaft end screws. The integrated triple redundancy angle displacement measurement device has the advantages that an integrated triple redundancy design is adopted so that the adaptive capacity to the environment is high, the service life is long, the requirements for the highly reliable angle displacement measurement of the novel servo system and feedback are met according to various tests and evaluations, and the integrated triple redundancy angle displacement measurement device has great significance for improving the reliability of the system, thereby having great popularization value.