741results about How to "No movement" patented technology

The invention discloses applicable classification method for mining under the shallow bedrock of thin seam keeping water conditions. Apply to thin seam overlying shallow bedrock aquifer water loose the protection of water resources. At first according to the feature of structure or Shallow bedrock, the height of leading water crevasse under different mining height is analyzed and calculated. The estimate formula: HL=9.29M+10.6 can be used to determine the height HL of leading crevasse water under the shallow bedrock of thin seam to the different mining height M. The mining waterproofing security coal rock pillar protector thickness of the thin bedrock shallow submersion coal bed long well working surface is 10 m. According to the classification situation of loose water-bearing stratum water body, the bedrock thickness which is needed is determined under the condition of different mining height. According to classification situation and mining height, mining is separated into reinsurance water mining according to the bedrock thickness. This method has good water resources protection effect, is safe in production, and has high coal resource returns-ratio.

The invention relates to a diamond grinding material sequential arraying system and a method, belonging to the field of grinding material and tool manufacturing. The system comprises a cylinder sleeve (3) and a piston (4). The piston (4) which can move up and down is arranged in the cylinder sleeve by a piston rod (1), the cylinder sleeve is sealed with the piston by a sealing ring (5), an elastic plate (6) is fixed at the lower end face of the cylinder sleeve by a screw (7) and a pressing plate (8), and stepped holes are sequentially arrayed in the elastic plate. The system further comprises a worktable (14) and a supporting plate (12) arranged on the worktable (14) by a magnet block (13). With low cost and easy popularization, the system and the method can effectively, accurately and sequentially array and distribute diamond grinding materials.

The invention discloses a CNC (Computer Numerical Control) board splitting production method without NPTH (Non Plating Through Hole) hole positioning, which is used in single PCS (pieces) shipment production in the manufacturing process of printed circuit boards, and because secondary forming is adopted, when CNC board splitting is carried out on a single PCS board, at least four groove angles of NPTH grooves distributed on the single PCS board are selected as forming positioning holes for board splitting, and remained reserved connecting positions of appointed areas are split. At least four NPTH groove angles in the PCS board are selected for positioning, PIN holes are arranged in the position tangential to the groove angles, and the PIN holes need to be distributed at four edges of the PCS board to the greatest extent so as to ensure that the PCS board does not move in four directions. The diameter of a selected pin is 0.05mm smaller than the diameter of a PIN hole drilling tool. Compared with a PTH (Plated Through Hole) hole positioning mode, the method disclosed by the invention makes a finished product do not have the problems of hole wall pull break, pad abrasion, poor solderability, hole copper fracture and the like. Compared with a gummed paper sticking positioning mode, the method disclosed by the invention makes the finished product have a more stable size and have no off tolerance, and the board splitting efficiency is effectively improved.

The invention provides a pneumatic pipeline robot system based on pneumatic tendon, which comprises a first supporting module, a stretching module and a second supporting module successively connected with each other, wherein the pneumatic tendon is served as the stretching module. The pneumatic pipeline robot system based on the pneumatic tendon provided by the invention is based on a bionic wriggling mode, adopts an external air source, is in a multi-section wriggling form and utilizes the simple and easy as well as practicable pneumatic pipeline robot with pneumatic element design; the structure is simple; the operation is easy; through a bending pipeline, and the matching of the corresponding operation mechanism, the monitoring and maintenance of the pipeline can be realized. The pneumatic pipeline robot system based on the pneumatic tendon provided by the invention has the advantages of high power, excellent dynamic characteristics, excellent sealing property and application to various pipeline environments.

The invention discloses a heat accumulation device comprising a heat accumulation space, a heat accumulation medium, a heat transmission input device, a heat exchange output device and a heat preservation structure wherein the heat accumulation medium, the heat transmission input device and the heat exchange output device are arranged in the heat accumulation space and the heat preservation structure is located outside the heat accumulation space; the heat accumulation space consists of a plurality of layers of serially connected heat accumulation space units and heat insulation layers between the adjacent heat accumulation space units; and the heat transmission input device and the heat exchange output device are used for carrying out heat transmission and heat exchange in the heat accumulation space, and layered input/output control is carried out on the top and the bottom of the heat accumulation device. Made of low-cost materials such as concrete, magnesia, ceramic, metal plate and the like, the heat accumulation device has low construction cost, stable performance and better performance cost ratio, and is particularly suitable for massively popularizing solar energy.

An auto bamboo curtain braider includes the pusher, the drive gear, the up-down changing thread device, the giving bamboo strip device. The drive gear includes the clutch, the bent axle and the chain wheel. Especially, the changing thread device is set between the big chain wheel and the front thread pole. So the thread can crisscross to four directions, and the bamboo strip would not be bent in the process of the braiding. It can be used for the bamboo strip of 0.8-4.2mm thickness and 1300-2600mm length. So it can assure the bamboo curtain not loosen in the production and transportation.

The invention provides a board double-end cutting and edge aligning device. The board double-end cutting and edge aligning device is simple in structure, manual pushing is replaced, a board can be conveniently fixed and positioned, the two ends of a board are subject to cutting and edge aligning at the same time, and cut edge alignment is ensured. The board double-end cutting and edge aligning device comprises two bases arranged on a base seat, sliding blocks are arranged at the bottom of one base, sliding rails matched with the sliding blocks are arranged on the base seat, and each base comprises a mounting box; a bottom plate is arranged on each mounting box, and a discharging mechanism parallel to the cutting direction is arranged on each bottom plate; a saw blade driven by a motor, an air cylinder for lifting the saw blade and a positioning air cylinder connected with a positioning block are arranged in each mounting box; a saw groove allowing each saw blade to pass through and a positioning hole allowing each positioning block to pass through are formed in each bottom plate; a limiting plate is arranged at the position, parallel to each saw groove, of the outer side of each saw groove, and a compressing mechanism is further arranged at the position, corresponding to the outer side of each limiting plate, of each bottom plate, and a pushing mechanism is further arranged at the rear end of each bottom plate; a rear sliding plate is arranged at the position, corresponding to the rear side of each saw groove, of each base, and the rear end of each rear sliding plate inclines downwards; and a receiving box is arranged on the rear side of each base.

A vibration isolating device in which, even if the angular difference between a normal vibration input direction and a maximum input direction is greater, a pressure-joint section of an elastic body is not displaced from a specified position in a bracket tube section. [MEANS FOR SOLVING PROBLEMS] A rubber elastic body (18) is vulcanized and joined to the outer peripheral surface of an inner tube (16), end sections of a pair of pressure-joint sections (26) of the elastic body (18) are pressure-joined to the inner peripheral surface of a bracket tube section (12), and the elastic body (18) is pressure-fitted into a circular tube-like bracket tube section (12). Projection-like bends (34) projecting in an L shape with a height H greater than the plate thickness of the bracket tube section (12) are formed at those radially inner sections of the bracket tube section (12) that are in contact with the end sections of the pair of pressure-joint sections (26), the projection-like bends (34) being each formed in the axis direction (S), across the entire width of the bracket tube section (12).

The invention relates to a modular PCB testing jig. The modular PCB testing jig comprises a testing module, a pin plate module, a supporting plate module and a covering plate module. The testing module comprises a testing platform, a support, a counter, a control board and a testing instrument. The pin plate module comprises a base, a pin plate, a sponge pad and a lower surrounding frame, wherein detection pins, spacers and springs are arranged on the pin plate, the base plate is provided with an air exhaust hole communicated with a vacuum extraction assembly, and the lower surrounding frame and the pin plate form a first containing cavity. The supporting plate module comprises a supporting plate, a sponge pad, a counter contact, an upper surrounding frame assembly, wherein the supporting plate is arranged in the first containing cavity, the upper surrounding frame assembly and the supporting plate define a second containing cavity for containing a PCB, and the supporting plate is provided with pin holes. The upper end faces of the pin plate and the supporting plate are both provided with a layer of copper foil. The covering plate module comprises an air cylinder and a cover plate fixed to a piston rod of the air cylinder, and pressing rods and a counter contact touch pin are arranged at the lower end of the cover plate. The modular PCB testing jig is compact in structure, convenient to maintain, accurate in test, high in automatic degree and capable of meeting the demand for large-scale test.

The invention discloses a drilling automatic positioning device and method for a tunneling and drilling jumbo. The device comprises a drilling supporter, a distance measuring sensor, an advancing beam positioner, displacement sensors, an angle sensor, a laser alignment part, an interactive display terminal, a controller and a handle. The distance measuring sensor is used for determining a position relation among the tunneling and drilling jumbo, an advancing beam and an operation roadway face; the displacement sensors are respectively arranged on a near-slope oil cylinder, a telescopic oil cylinder, a pitch oil cylinder, a compensating cylinder and a lift cylinder; the angle sensor is arranged on a rotary oil cylinder; the interactive display terminal is used for the display of data and the selection and setting of a hole arrangement mode; the controller is used for receiving an instruction and driving a hydraulic valve, controlling strokes of oil cylinders, calculating the position and pose of the advancing beam by the measured data of the sensors, and finally determining the position of a drill; the handle is used for controlling the operation of the jumbo. According to the device and the method, drilling automatic positioning is realized according to the hole arrangement mode, the automation degree of the drilling jumbo is improved, the technical requirements on operators are reduced, the efficiency of tunnel operation is improved and the service lives of a drill pipe and the drill are prolonged.

The invention provides a plank cutting and edge trimming device. The device is simple in structure; manual pushing is replaced; and a plank can be cut, fixed and positioned conveniently, so that the cutting effect is excellent, the operation is convenient, the security coefficient is high, and cut edges are enabled to be flush. The device comprises a base, wherein the base comprises an installation box; a base plate is arranged on the installation box; a saw blade, a cylinder and a positioning cylinder are arranged inside the installation box; the saw blade is driven by an electric motor; the cylinder is used for raising the saw blade; the positioning cylinder is connected with a positioning block; a saw groove and a positioning hole which allow the saw blade and the positioning block to pass through are formed in the base plate; a limiting plate is arranged at the outer side of the saw groove and is parallel to the saw groove; a pressing mechanism is also arranged corresponding to the outer side of the limiting plate on the base plate; a pushing mechanism is also arranged at the rear end of the base plate; a rear sliding plate is arranged corresponding to the rear side of the saw groove on the base; and the rear end of the rear sliding plate inclines downwards.

The invention relates to the field of structural tests, particularly a loading positioning device for compressed column tests in civil engineering, which is especially suitable for secondary loading of compressed columns under the coupled actions of load and environment. The loading positioning device comprises a vertical elevation system, a positioning auxiliary frame and a horizontal movement and fixation system, wherein the vertical elevation system is composed of an I-shaped lower bottom plate, an I-shaped upper bottom plate, an airbag with a single-side notch, an inflation tube, an eduction tube, a check valve, an inflation cylinder, a vertical guide rod, a vertical guide sleeve and a stopper. The loading positioning device can quickly, accurately and stably aim at any preset loading position at one time; and the loading positioning device can horizontally and vertically move freely to satisfy the loading demands of compressed columns in different sizes and different structures, and ensure the compressed columns to be always vertical and stable in the positioning process.

The invention relates to a six-degree-of-freedom parallel dynamic platform. The six-degree-of-freedom parallel dynamic platform comprises a display device (1), an operation platform (5), an upper platform (3), an execution mechanism (32), a lower platform (21) and a control system (33); the display device (1) and the operation platform (5) are respectively arranged on the upper platform (3); two ends of the execution mechanism (32) are respectively fixed on the upper platform (3) and the lower platform (21); and the control system (33) is located in the lower platform (21). With the six-degree-of-freedom parallel dynamic platform of the invention adopted, defects in the prior art can be eliminated, and simulation experience of an operator and the reliability of the mechanism can be enhanced, and up-and-down, left-and-right and front-and-back translation and rotation can be realized. The six-degree-of-freedom parallel dynamic platform has the advantages of stable movement and convenient operation, and can bearing a large load.

The invention relates to a clamping device of a cloth roller on a grey cloth rolling machine, comprising a support, an end cover, an inclined sleeve and a shaft; the shaft is installed on the support by a bearing; the clamping device is characterized in that: one end of the shaft is provided with a plane and a square groove and further equipped with a guide sleeve, the guide sleeve is sheathed on the shaft, the plane of an inner bore of the guide sleeve is coincident with the plane on the shaft and the cylindrical surface of the inner bore of the guide sleeve is partially coincident with the cylindrical surface of the shaft, and one end surface of the guide sleeve is an inclined plane that is not vertical to the axial line of the guide sleeve. Compared with the prior art, the clamping device of the invention has the advantages that: during the rotation of the cloth roller, a square shaft head can not shift in the square groove of the shaft and has no impact and noise; when the shaft rotates till the opening of the square groove faces downwards, the guide sleeve can bear the weight of cloth rolls and the cloth roller, therefore, parts are not easily to be damaged and are durable; the shaft and the guide sleeve are both simple in shape and easy to be processed and the whole device has convenient installation and dismantlement and easy to be maintained.

The invention discloses a press-mounting machine for assembling rollers of a belt conveyor. The press-mounting machine comprises a bracket body consisting of a base, supporting posts and a top plate; a vertical hydraulic cylinder is arranged at the upper part of the bracket body; a piston rod of the hydraulic cylinder extends downwards; the rod head of the piston rod is provided with a pressing head; guide rails are arranged on the base of the bracket body; plate trailers running along the guide rails are arranged on the guide rails; and jacking heads corresponding to the pressing head are arranged on the plate trailers. The press-mounting machine is used for assembling the rollers, the plate trailers loaded with the rollers are integrally pushed into preset positions of the bracket body, the upper ends of the rollers are enabled to be aligned with the pressing head, the pressing head is driven to push fittings, such as bearings, into the rollers by using the hydraulic cylinder, and the plate trailers are pushed out of the bracket body for unloading and reloading after the press-mounting is finished. The press-mounting machine for assembling the rollers of the belt conveyor has the advantages that the operation is simple, the labor intensity is low, the working efficiency is further increased, the placement of workpieces is accurate, the migration cannot occur during press-mounting, and thus, the product quality is stable.

The invention discloses a 3D printer and a horizontal movement method of the 3D printer. The 3D printer comprises a rack, a horizontal movement mechanism installed on the rack, and a printer head installed on the horizontal movement mechanism. The 3D printer is characterized in that the horizontal movement mechanism comprises a Y-axis first sliding rod, a Y-axis second sliding rod, Y-axis sliding bases, an X-axis sliding rod arranged between the two Y-axis sliding bases, an X-axis sliding base arranged on the X-axis sliding rod and a synchronous belt transmission mechanism, wherein the Y-axis first sliding rod and the Y-axis second sliding rod are arranged in parallel, and each Y-axis sliding rod is provided with the corresponding Y-axis sliding base; the printer head is arranged on the X-axis sliding base; the synchronous belt transmission mechanism comprises four guiding wheels, driving wheels, driven wheels, a motor and a horizontal synchronous belt; one end portion of the horizontal synchronous belt is fixedly connected to one side of the X-axis sliding base; and the other end of the horizontal synchronous belt is sequentially connected to the second guiding wheel, the Y-axis second driving wheel, the Y-axis second driven wheel, the fourth guiding wheel, the third guiding wheel, the Y-axis first driven wheel, the Y-axis first driving wheel and the first guiding wheel in a wound manner and then is fixedly connected to the other side of the X-axis sliding base.

The invention discloses an anti-falling device for dendrobium cultivation. The anti-falling device for dendrobium cultivation comprises anti-sliding bases, supporting rods, rotating limiting devices,an upper installing frame and a lower installing frame, wherein spring installing plates are installed on the inner surfaces of the lower installing frame, limiting springs are installed at the ends,away from the lower installing frame, of the spring installing plates, flowerpot supporting plates are installed at the tail ends of the limiting springs, a flowerpot is arranged in the middles of theflowerpot supporting plates, and the supporting rods are installed at portions of the four corners of the lower installing frame; the anti-sliding bases are installed at the tail ends of the supporting rods, and the supporting rods at the upper portion of the lower installing frame are connected through the upper installing frame; the rotating limiting devices are installed in the middles of thefour edges of the upper installing frame, rotating bolts are installed in the middles of the rotating limiting devices, and rotating nuts are installed at one ends of the rotating bolts. By means of the anti-falling device for dendrobium cultivation, flowerpots can be conveniently placed, and through the rotating limiting devices at the upper ends, main dendrobium stems with different sizes can besupported for preventing dendrobium from falling.

The invention discloses a weld-line movement-controlled tailor-welded blank stamp-forming device, relating to tailor-welded blank stamp-forming devices. The weld-line movement-controlled tailor-welded blank stamp-forming device aims at solving the problem that the traditional tailor-welded blank stamp-forming device cannot control a weld line to move to a correct position through regulating a blank-holding force of a blocking blank holder and regulating a holding force of the weld line and cannot flexibly control a blank-holding force on a blank at two sides of the weld line. A female die is mounted on the upper end faces of two female die cushions; a holding block can move up and down along the die cavity of the female die under the driving of a piston rod of a third hydraulic cylinder; a holding pin inserts into one of grooves; a first blank holder and a second blank holder are arranged above the female die and are used for positioning a tailor-welded blank; the upper end face of the first blank holder is connected with a piston of a first hydraulic cylinder; the upper end face of the second blank holder is connected with a piston of a second hydraulic cylinder; and a control system is used for adjusting the motion of the three hydraulic cylinders through controlling the on/off of each hydraulic valve component in a hydraulic system. According to the invention, the inflow volume of blanks at the two sides of the weld line of the tailor-welded blank can be effectively controlled.

The invention belongs to the technical field of medical apparatus and instruments, and discloses a cardiovascular intervention curer. The cardiovascular intervention curer comprises a puncture device and a fixing device, wherein the puncture device comprises a needle tube, a diaphragm bursting tube is arranged at the top of the needle tube, a needle head is installed at one end of the diaphragm bursting tube, which extends out of the needle tube, a push rod is installed in the needle tube, a push plate is arranged at one end of the push rod, a rubber plug is fixedly installed at the other end of the push rod, a through hole is formed in the rubber plug, an elastic seal diaphragm is arranged on the through hole, a wire guiding hole is formed in the push rod, a catheter is connected with the top of the needle tube, the catheter is connected with a collection bag, a flow control valve is arranged on the catheter, the fixing device comprises a base seat and an upper arc plate installed on the base seat, an arc-shaped groove is formed in the top of the base seat, a hand holding portion is arranged in the middle of the base seat, a fixing portion is arranged at the bottom of the base seat, and two fixing bands are respectively arranged on two sides of the fixing portion. The puncture device is fixed on the fixing device, and a doctor can hold the fixing device in hand for puncturing and then fixes the fixing device, and therefore the doctor can conveniently and accurately operate the cardiovascular intervention curer, and collects blood in the collection bag, and furthermore an operation surface of the doctor can not be polluted.