42results about How to "No turning" patented technology

The invention belongs to the technical field of aviation and space, and particularly relates to a high pressure annular jet pump suitable for a pumping pressure type supply system. The high pressure annular jet pump comprises an inlet section pipe, a mixing section pipe, a throat pipe, a diffusion section pipe and an outlet section pipe which are sequentially arranged in the flowing direction of main fluid. The high pressure annular jet pump is characterized by further comprising step section pipes which are sequentially arranged between the inlet section pipe and the mixing section pipe; each step section pipe comprises a convergence section pipe and a straight section pipe; each straight section pipe is provided with a spraying nozzle for providing high pressure fluid. The high pressure annular jet pump is compact in structure, light in weight, good in anti-cavitation performance and capable of meeting the requirement for normal work under the working conditions of high rotating speed and low inlet pressure.

The invention discloses a fully mechanized coal mining hydraulic support column, relates to the technical field of the fully mechanized coal mining hydraulic support column, and is capable of solving the technical problems that an existing test-bed of a fully mechanized coal mining hydraulic support column is short in loading travel, difficult to adjust the position of the center line of a tested column, is incapable of adjusting the testing length of the test-bed and the like. The test-bed of the fully mechanized coal mining hydraulic support column comprises a first hydraulic oil cylinder, a cross beam, a front beam, a first guide holder, a second guide holder, a movable tail beam and a second hydraulic oil cylinder, wherein the movable tail beam is provided with a driving device, the test-board is further provided with a support trolley and a horizontal guiding device which moves along a ground guide rail, therefore the long-stroke loading of the test-bed of the fully mechanized coal mining hydraulic support column, and the automatic adjustment of the position of the center line of the tested column and the testing length can be comprehensively realized.

The invention relates to a locking device for a plug-in connection between a plug and a socket. According to the invention, an actuator (4) and a blocking slide (6) are provided, wherein the actuator (4) can be rotated about an axis of rotation, the blocking slide (6) can be moved between an unlocking position and a locking position in the longitudinal direction of the blocking slide, and the actuator (4) and the blocking slide (6) are designed in such a way and interact with each other in such a way that a rotation of the actuator (4) is always accompanied by a longitudinal movement of the blocking slide (6) and vice versa, wherein a longitudinal movement of the blocking slide (6) by means of a rotation of the actuator (4) is always possible, while conversely a rotation of the actuator (4) by means of a longitudinal movement of the blocking slide (6) is possible only outside of the locking position. Thus, simple and economical axial locking that cannot be manipulated is enabled.

The invention relates to the field of production equipment, in particular to a positioning device for PA nylon rods, which includes a supporting mechanism and a clamping mechanism. Lifting and lifting assembly, the clamping mechanism includes a first clamping mechanism and a second clamping mechanism that are symmetrically arranged, and the first clamping mechanism includes a V-shaped first clamping mechanism that interferes with the cylindrical side of the nylon rod. The clamping part and the first drive assembly that drives the first clamping part to travel in the direction perpendicular to the axis of the nylon rod, the second clamping mechanism includes a V-shaped second clamping mechanism that interferes with the cylindrical side of the nylon rod part and the second drive assembly that drives the second clamping part to travel in the direction perpendicular to the axis of the nylon rod. The present invention ensures that the nylon rod will not rotate during the cutting process, reducing unnecessary cost waste. Increase productivity.

The invention discloses a scattering type periodic structure damping vibration reducing lathe cutter rod. By means of the scattering type periodic structure damping vibration reducing lathe cutter rod, the problem of lathe cutter vibration in lathing is solved, vibration energy can be made to be attenuated in the lathing process, propagation of mechanical waves is inhibited, noise is reduced, themachining stability is improved, and the scattering type periodic structure damping vibration reducing lathe cutter rod is made to have vibration isolation performance within the forbidden band frequency range utilizing the frequency band gap characteristic of a periodic structure. The technical scheme of the scattering type periodic structure damping vibration reducing lathe cutter rod is that the scattering type periodic structure damping vibration reducing lathe cutter rod comprises a cutter rod base body and a cutter head which are connected into a whole, the peripheral surface of the cutter rod base body is evenly provided with multiple rows and columns of damping scattering bodies in a period distribution manner, the cutter rod base body and the damping scattering bodies form the scattering type periodic structure, in the lathing process, the vibration energy generated at the cutter head position is delivered to the damping scattering bodies, inhibiting effect is performed on elastic waves within the forbidden band range utilizing the damping scattering bodies, so that the vibration energy is converted into heat dissipation to realize inhibiting of lathing vibration.

The present invention relates to a fuel pump configuration structure for a vehicle, which can increase the configuration freedom and design freedom of the fuel pump. The fuel pump arrangement structure is such that in the vehicle, a main frame (41) is arranged along the body center line (110) extending front and rear from the center of the vehicle width direction, and a main frame (41) is installed on the upper part of the vehicle. The fuel tank (24) is integrated with the fuel pump (83), the engine (17) is arranged below the main frame (41), and the throttle body (77) is arranged behind the engine (17), wherein, When viewed in plan, the fuel pump (83) is disposed on the opposite side to the throttle body (77) across the main frame (41), and is disposed parallel to the throttle body (77) in the vehicle width direction.

The invention discloses a conveying-type comb vertical circulation parking method. A vehicle is driven into an intelligent conveying mechanism, and a driver walks to the ground from moving pedals; themoving pedals move to the two ends, and a micro lifting mechanism raises the vehicle and a comb rotating table; the comb rotating table rotates by 90 degrees; a comb hanging basket is in position; acarrying mechanism drives the comb rotating table and the vehicle along a conveying track into a vertical circulation garage, after the carrying mechanism is in place, the micro lifting mechanism is lowered, the comb fork exchange of the comb rotating table and the comb hanging basket is realized, and the vehicle falls from the comb rotating table to the comb hanging basket; after the micro lifting mechanism is lowered, the carrying mechanism drives the comb rotating table to return to the position along the track and moves out of the comb vertical circulation garage; and after the carrying mechanism drives the comb rotating table to return in the position, the comb rotating table is slightly lifted again and rotated to return to the position, the moving pedals return to the positions along a transverse track, the conveying mechanism is slightly lowered to fill-in, and the vehicle parking is finished. The conveying-type comb vertical circulation parking method greatly saves the groundflow space required for the vehicle driving, and the number of parking spaces is doubled.

The invention relates to an adjustable arc building wood formwork. The adjustable arc building wood formwork comprises a plurality of adjusting supports and wood formwork bodies, wherein the adjustingsupports are sequentially connected end to end, and the wood formwork bodies are placed on the adjusting supports; each adjusting support comprises a back ridge and two adjusting pieces; the two adjusting pieces are fixedly arranged on the two sides of the back ridge correspondingly; each adjusting piece comprises two adjusting plates; the two adjusting plates are fixed to one side of the back ridge in parallel and provided with a first hinge hole and a second hinge hole correspondingly; the two adjusting plates in one adjusting support are clamped in the two adjusting plates in the other adjusting support, and the two adjusting supports are connected through a first hinge shaft inserted in the first hinge hole; second hinge shafts are arranged in the second hinge holes; each second hingeshaft is detachably provided with a fixing base; each fixing base is provided with a threaded hole; and a lead screw sleeved with a nut is connected between the threaded hole in one adjusting supportand the threaded hole in the other adjusting support. The purposes that the structure is simple, and the angle between every two connected formwork bodies can be adjusted in a stepless manner are achieved.

The invention discloses a device and method for stripping a communication optical cable. The front end face of a cover body is provided with a transverse cutting assembly, the rear end face of the cover body is connected with a side supporting seat, and the side supporting seat is provided with a plurality of observation holes at intervals; the part, close to the bottom, in the cover body is provided with a rotating assembly, and the outer surface of the rotating assembly is uniformly provided with a plurality of cable grooves; an optical cable needing to be peeled extends into the cable groove through the positioning hole and extends out of the device through the observation hole. A vertical cutting assembly is fixedly connected to the portion, above the rotating assembly, of the cover body, and a vertical cutter is connected to the vertical cutting assembly in a sliding mode. According to the invention, after the skin of the optical fiber is stripped, a worker pulls the optical cable towards one side of the positioning seat, so that each stripped skin can be taken down from the rotating frame, a bare fiber protection sleeve is embedded into the bottom side of each cable groove, and each bare fiber protection sleeve can be embedded into the surface of each optical fiber by rotating a hand wheel; therefore, the device can not only open and pull the optical cable, but also protect the optical fiber, and is convenient to use.

The invention relates to a shaft sleeve for a motor rotor, which comprises a shaft sleeve body, a through hole is arranged in the center of the shaft sleeve body; Positioning groove, the limiting groove is set in a depression toward the axis of the shaft sleeve body, the inner end surface of the limiting groove is an arc-shaped structure with the opening facing outward, the diameter of the limiting groove is 2.5mm, and the height of the limiting groove is 1cm‑ 1.5cm. The invention has the advantages of simple structure and ensuring the connection reliability between the shaft sleeve and the motor housing.

The invention discloses cable press-fitting equipment, and belongs to the technical field of press-fitting equipment. The equipment comprises a workbench, a first supporting plate and a shell, whereinthe first supporting plate is fixedly mounted above the workbench through a screw, and the shell is located at one side of the first supporting plate; the shell is welded to the upper surface of theworkbench, and a second supporting plate is arranged above the shell in a sliding mode; a fixed pipe is integrally formed above the second supporting plate, a portal frame is fixedly installed on theworkbench through a screw, a press-fitting mechanism is fixedly installed on the inner side of the portal frame through a screw, and a sliding mechanism is arranged in the shell. According to the invention, through the arrangement of a fixed rod and the sliding mechanism, a cable connector lug is conveyed to the position below the press-fitting mechanism, thereby improving the press-fitting quality of a cable, and improving the press-fitting efficiency of the cable.

The invention relates to the technical field of motor shafts, and discloses a connecting structure for machining a driving motor shaft, which comprises an outer cylinder, and a plurality of clamping nuts meshed with the bottom tooth surface of a bottom tooth surface rotating cylinder are driven to rotate by rotating the bottom tooth surface rotating cylinder, so that the clamping nuts move along a threaded rod in the rotating process; the multiple movable heads can be adjusted in the same direction along the threaded rod, the effect that multiple machining shafts can be clamped or disassembled at the same time is achieved, the efficiency of batch production is improved, the multiple clamping nuts are moved to different positions by rotating the clamping nuts at different positions, and the machining efficiency is improved. Therefore, the effect that the multiple moving heads and the multiple fixed heads which are used in pairs clamp motor shafts of different specifications is achieved, the function of machining the multiple motor shafts by starting the motor at a time is achieved, the starting frequency of the motor is reduced under the condition that the same number of machining shafts are machined, and the service life of the motor is prolonged.

The invention discloses a spotlighting LED lamp comprising a shell. A cover plate is arranged at the bottom of the shell and is a transparent glass cover plate. A cover lid is arranged at the top of the shell and is overall cylindrical. The lower end of the cover lid is fixedly connected with the outer surface of the shell. A lamp pole is arranged in the shell and is vertically arranged in the middle of the shell, and the stretching end of the lamp pole is fixedly connected with the lower surface of the top of the cover lid. An LED lamp body is connected to the lower end of the lamp pole. A rotary assembly is arranged in the cover lid and is in matched connection with the shell. A lampshade is arranged in the shell and is in matched connection with the rotary assembly. The inner wall of the lampshade is coated with reflection materials. The problems that when an LED lamp needs to be replaced, the position of a light source changes, the spotlighting effect becomes poor, and in the priorart, light rays are adjusted only by changing the luminance of the light rays for different work are solved.

The invention relates to a mounting rack for honing a pump body. The mounting rack for honing the pump body comprises a base frame, wherein a left cantilever is fixed on the left side of a front end surface of the base frame; a right cantilever is fixed on the right side of the front end surface of the base frame; sections are respectively arranged on the left cantilever and the right cantilever; a mounting table is fixed in the middle of the left cantilever; a gripping opening is fixedly formed in the front end of the left cantilever and is provided with a chute; a connecting block is fixed at the front end of the right cantilever and is hinged to a front stopping rack; an oblique pressing block which is matched with the chute is arranged at the left end of the front stopping rack; and a left stopping block and a right stopping block are arranged in the middle of the front stopping rack. The mounting rack for honing the pump body is convenient to fix, simple in structure and low in manufacturing cost and is mounted firmly; side plates and supporting columns are fixed by upper clamping blocks and lower clamping blocks, so that the side plates and the pump body on the side plates can slide on the left cantilever; the mounting rack is convenient to adjust; and the left cantilever with the section and the right cantilever with the section are fixed firmly, and cannot rotate.

The invention discloses an omnidirectional neck exerciser capable of performing neck exercise on the premise of protecting the cervical vertebra. The whole instrument is worn under the head and can enclose the shoulder and neck, and the main parts are as follows: a left neck support and a right neck support are encircled into a heart shape through a connecting shaft and can be opened and closed, the front half part is linear, and the rear half part is arc-shaped and is connected with an arc-shaped pillow support; the shoulder enclosure adopts a structure for enclosing a shoulder and a neck, and each part can be opened and closed around a connecting shaft; the left piece of the positioning piece is provided with a round hole, and the right piece is hook-shaped and connected with the lower jaw abutting plate through connecting screws; the arc-shaped elastic columns are arranged on the front side and the rear side respectively. During assembly, the neck support and the lower jaw abutting plate are adjusted by inserting the positioning pieces into the corresponding positioning holes in the neck support, and the upper end and the lower end of each elastic column are fixed to the corresponding clamping openings of the neck support and the shoulder fence through the clamping pins respectively. When in use, the right positioning piece is unhooked from the connecting screw, the whole instrument is opened towards two sides around the connecting shaft, then the instrument is sleeved from the back of the neck from the opening, and finally the right positioning piece hooks the connecting screw, so that the whole instrument encloses the shoulder and the neck, and then the neck can be exercised.

The invention provides a lower roll quick dispatch mechanism, which relates to a quick dispatch mechanism of the lower roll of a novel roll bending machine, and belongs to the technical field of roll bending machines. The invention aims at providing a quick dispatch mechanism which can realize lower roll quick dispatch of the roll bending machine and can solve the problem of positioning the lower roll; the technical proposal adopted is that: a quick dispatch bearing body with a U-shaped groove is fixed at the left end of the low roll, the bearing is sheathed on the left spindle head of the lower roll and is located in the U-shaped groove of the quick dispatch bearing body, an opening is arranged on the outer end face of the quick dispatch bearing body, and the quick dispatch bearing body is fixed in a groove corresponding to a frame by the opening. The lower roll quick dispatch mechanism can be widely applied to roll bending machines.

The invention relates to a shaft body machining tool. The shaft body machining tool comprises a lathe base and a cutter arranged on the lathe base. A shaft body fixing plate is arranged on the lathe base. A shaft body mounting cavity is formed in the bottom of the shaft body fixing plate. A shaft body positioning plate is arranged on the shaft body fixing plate. Two rotating wheels are arranged inside the shaft body positioning plate. A vertical positioning channel is formed between the two rotating wheels. A positioning rod is arranged in the positioning channel. The positioning channel formed in the shaft body positioning plate and the shaft body mounting cavity formed in the shaft body fixing plate are located on the same straight line. The end of the positioning rod corresponds to the shaft body mounting cavity. When the cutter below the shaft body fixing plate is used for machining a shaft body, the two rotating wheels on the shaft body positioning plate drive the positioning rod engaged with the two rotating wheels to move downwards and stretch into the shaft body mounting cavity to abut against the end of the to-be-machined shaft body, so that the to-be-machined shaft body is positioned; and when the cutter on the lathe base is used for machining the shaft body, the shaft body cannot rotate or loose; and the tool is simple in structure and good in shaft body positioning effect.

The invention discloses a switching device for bearing seats. The switching device comprises a bearing cap, wherein an oil hole is formed in the top end of the bearing cap; a sealing cover is connected to the top end of the oil hole in a sleeving manner; two plunger holes are formed in the inner part of the bearing cap; a spring is fixedly connected to the interior of each of the plunger holes; afixing plate is fixedly connected to the upper part of each of the springs; a plunger is fixedly connected to one end of each of the fixing plates; a steel ball is arranged at the tail end of each ofthe plungers; a bearing seat is in bolted connection with the bottom of the bearing cap; a shaft is fixedly connected to the middle of the bearing cap and the bearing seat; an upper cover is arrangedin bearing cover; a bearing is rotatably connected with the interior of the upper cover; a bearing outer ring is arranged in the bearing; a bearing inner ring is arranged below the bearing outer ring;and a rolling body is clamped and connected between the bearing outer ring and the bearing inner ring. According to the switching device for bearing seats, the structure is simple, the operation is convenient, the service life is long, and the switching device is used for realizing the switching among bearing seats and quite suitable for long-time machining occasions.

The invention discloses a heat dissipation LED lamp, and relates to the field of LED lamps, the heat dissipation LED lamp comprises a shell, wherein the whole shell is hemispherical; a cover plate arranged at the bottom of the shell; a lamp post vertically arranged in the shell, wherein the lamp post is slidably connected with the shell, and the lower end of the lamp post is connected with the LEDlamp; a lampshade cover arranged in the shell, wherein the inner wall of the lampshade cover is coated with a reflective material, and the lampshade cover is provided with a plurality of heat dissipation openings; and cooling fans arranged on the outer surface of the cover plate in a central symmetry mode and arranged between the shell and the lampshade cover; wherein a temperature sensor is arranged in the lampshade cover and connected with a central control module, and the cooling fan is electrically connected with the central control module. The problems that a conventional LED does not have a heat dissipation function, the internal temperature rises after the LED is used for a period of time, normal use is affected, and maintenance is not facilitated are solved.

The invention discloses a suction-type rotary sand-blasting and powder-spraying device, and belongs to the field of rotary sand-blasting devices. The suction-type rotary sand-blasting and powder-spraying device comprises a rotary sealing base and a suction-type sand-blasting gun. The rotary sealing base is provided with two independent fluid pipelines, wherein one pipeline is designed on the coreof a central tube, so that when a powder-containing and sand-containing two-phase medium flows passes through the rotary central tube, abrasion is minimized, the abrasion-resistant requirement of a structure allowing powder-containing and sand-containing fluid containing solid particles to pass through at a high speed is met, and suction-type rotary sand-blasting and powder spraying is made possible. High-pressure gas rapidly flows through the suction-type sand-blasting gun to form a negative pressure in a sand suction passageway to enable the solid particles to be sucked into the sand-blasting and powder spraying device, and rotary sand-blasting and powder-spraying are achieved by means of reactive force of a jet flow. Compared with an existing sand-blasting machine, the suction-type rotary sand-blasting and powder-spraying device has the advantages that the material spraying range is wide, materials can be dispersed more uniformly, metering is more accurate, the size is small, and operation is more flexible and convenient.

The invention provides an STM32-based numerical control laser cutting machine device, which comprises a numerical control laser cutting machine body. The numerical control laser cutting machine body is provided with a left slideway and a right slideway; a set of vertically-arrayed holes of a front left square fixing hole, a rear left square fixing hole, a front right square fixing hole and a rearright square fixing hole is formed in the left slideway; a front left square rod is inserted in the front left square fixing hole in a tight fit mode, a front right square rod is inserted in the frontright square fixing hole in a tight fit mode, and the front left square rod and the front right square rod are connected through a front left arc-shaped rod; a rear left square rod is inserted in therear left square fixing hole in a tight fit mode, a rear right square rod is inserted in the rear right square fixing hole in a tight fit mode, and the rear left square rod and the rear right squarerod are connected through a rear left arc-shaped rod; and the front left arc-shaped rod and the rear left arc-shaped rod are connected through a left arc-shaped beam rod. The STM32-based numerical control laser cutting machine device is used for an STM32-based numerical control laser cutting machine.