440 results about "Single hole" patented technology

The invention discloses a single-hole pressure adjusting method, device and equipment for a water curtain test of an underground water-sealed cave depot and a storage medium, and relates to the technical field of geological engineering.The method comprises the steps that firstly, a rock mass acoustic impedance spectrum is collected, intrinsic mode decomposition is carried out to extract geologic feature components, and the rock mass acoustic impedance spectrum is obtained; processing the target pressure value, the current pressure value and the geologic feature component by using a pressure-opening coupling model based on acoustic feature extraction, time sequence dynamic analysis and physical constraint decoding to obtain a reference valve opening; then, a water curtain hole valve is adjusted according to the reference valve opening degree, and the pressure change acceleration is monitored in real time; calculating an opening compensation increment and a damping attenuation coefficient based on the pressure change acceleration, and further generating a target valve opening; and finally, the valve is adjusted to the target opening degree, so that the water curtain hole reaches the target pressure value. According to the invention, high-precision self-adaptive adjustment of the pressure of a single water curtain hole can be realized in the water curtain test of the underground water-sealed cave depot.

The invention discloses a single-hole cluster test method, device and equipment for cave depot water curtain holes and a storage medium, and relates to the technical field of underground engineering and water sealing.The method comprises the steps that a test instruction input by a user is received; when the test instruction is a single-hole water injection fallback test instruction, sending a single-hole water injection fallback test control signal to a programmable logic controller of the target water curtain hole through an OPC server so as to perform a single-hole water injection fallback test and collect first test data; when the test instruction is a water curtain effectiveness test instruction, water curtain effectiveness test control signals are sent to programmable logic controllers of all the water curtain holes through the OPC server, so that water curtain effectiveness tests are carried out on all the water curtain holes, and second test data are collected; and obtaining a test result according to the first test data and the second test data. According to the application, remote data acquisition and test control of the water curtain hole cluster can be realized without entering the cave depot by field personnel, and meanwhile, the test efficiency and the data accuracy are improved.

The invention provides a 3D printing composite hollow structure generation method based on space curve alternate connection, and relates to the technical field of 3D printing, the method comprises the following steps: layering and discretizing a target 3D model along a printing direction, and intercepting sections layer by layer; according to the fact that the topological state of each layer of section is non-porous or single-hole, if the section is non-porous, two points are taken from each layer of section, and the two points divide a single contour into two parts to form a contour 1 and a contour 2; if the cross section is a single-hole cross section, extracting an external boundary as a contour 2 and an internal hole boundary as a contour 1 to form a nested structure; in a three-dimensional space, generating a surface 1 formed by F parameterized space curves fi for the contour 1 of all layers, and generating a surface 2 formed by G parameterized space curves gi for the contour 2; each space curve fi and the contour 1 of the nth layer intersect at a point Pn, i, and each space curve gi and the contour 2 of the nth layer intersect at a point Qn, i; k-L alternately connects the paths, and K lines and L lines are combined to generate differentiated textures.

The utility model relates to the technical field of piezoelectric pumps, in particular to a novel fluid conveying device, which is characterized in that a vibration component is matched with a pump seat groove to define a pump cavity, the pump cavity is communicated with the outside through a pump inlet and a pump outlet which are arranged on a pump seat, and a first one-way valve and a second one-way valve are respectively arranged at the pump inlet and the pump outlet. The circulation holes in the first one-way valve and the second one-way valve are of a porous structure, and the pumping capacity of the fluid conveying device can be improved by increasing the total length of the edges of the circulation holes compared with a single-hole design with the same area. The fluid conveying device adopts a single-pump-cavity design, so that the overall size of the pump body can be obviously reduced, the pump inlet and the pump outlet are formed in the pump base and are provided with the first one-way valve and the second one-way valve respectively, and effective pumping-in and pumping-out of fluid in the same pump cavity are achieved; the fluid path is simplified, meanwhile, the turning process of the fluid is reduced, and therefore energy loss in the fluid pumping process is reduced.

The invention discloses a one-time hole aligning operation type drilling, grouting and anchoring all-in-one machine and a construction method. The drilling, grouting and anchoring all-in-one machine comprises a propelling beam, a bolting and grouting device, a station switching device, a propelling device and a supply device. The bolting and grouting device comprises an anchoring agent spraying pipe. The station switching device comprises a station switching device I and a station switching device II, and the station switching device I can be switched between a drilling state and an anchor rod mounting state; the second station switching device can be switched between the first state that the drill rod hole and the surrounding rock preset hole are coaxial, the second state that the spray pipe hole and the surrounding rock preset hole are coaxial and the third state that the spray pipe hole and the surrounding rock preset hole are staggered simultaneously. The first station switching device and the second station switching device work cooperatively, it is ensured that drilling, anchoring agent injection and anchor rod installation share the same axis positioning reference all the time, seamless connection of procedures is achieved, and equipment displacement or repositioning is not needed in the whole process. The device has the advantages that the construction direction is adjusted at a time, the integrated operation of drilling, anchoring agent injection and anchor rod installation is completed in sequence, and the convenience during single-hole operation is improved.

The invention discloses a surface mine blast hole explosive cartridge inserting device, which belongs to the technical field of blasting engineering construction equipment and comprises a traveling mechanism, a control mechanism and an explosive cartridge inserting mechanism. The cartridge inserting mechanism adopts a vertically arranged inserting pipe, can accommodate all cartridges required by single-hole blasting at one time, and is temporarily supported by an elastic check ring at the front end; after the pushing-in assembly drives the whole inserting pipe to be inserted downwards to the bottom of a hole, the abutting-in assembly fixes the explosive cartridge at the uppermost end, then the inserting pipe moves upwards, and the explosive cartridges are sequentially pushed out and filled in the hole. By means of the device, overall lowering and sequential filling of the cartridges are achieved, the technical problems that traditional manual single-cartridge filling is low in efficiency, the cartridges are prone to being damaged, and the arrangement sequence in holes is prone to being disordered are solved, and the charging efficiency, safety and reliability are remarkably improved.

The invention relates to a single-hole deep and shallow layered grouting device and method.The single-hole deep and shallow layered grouting device comprises a grouting pipe, an annular bag, a high-pressure hose, a grout non-return structure and bag fixing structures, the bag fixing structures are arranged on the outer side of the grouting pipe side by side, and the annular bag wraps the outer side of the grouting pipe; the side end of the annular bag is fixed to the grouting pipe through the two bag fixing structures, the grout non-return structure is connected to the side end of the high-pressure hose, and the other side end of the high-pressure hose penetrates through the bag fixing structures to communicate with the annular bag. The method preferably adopts a single-hole segmented grouting process to seal and fill the surrounding rock cracks of the roadway, indirectly increases the filling rate of the cracks, improves the overall stability of the roadway to the greatest extent, prolongs the service life of the roadway service, and is suitable for popularization and use.

The invention provides a gas blasting parameter prediction and hole arrangement design method based on a back propagation neural network. The method comprises the following steps: S1, obtaining physical and mechanical parameters of a rock mass in a blasting area; s2, carrying out a single-hole gas bursting test, and determining an optimal resistance line; s3, the step S1 and the step S2 are repeated in different sites, corresponding data are counted, and a database is established; s4, constructing and training a back propagation neural network, and predicting reasonable gas blasting parameters by inputting training data; and S5, optimizing hole arrangement design according to a network prediction result, and determining hole depth, hole pitch and hole pitch. According to the method, the blasting parameters are accurately predicted, the rock mass parameters and the site conditions are combined, the hole distribution parameters are reasonably designed, the rock breaking cost is remarkably reduced, the rock breaking efficiency is improved, and then the economic benefits of blasting operation are optimized.

The invention relates to the technical field of punching machining, in particular to wind power flange machining punching equipment which comprises a workbench, a mounting frame is fixedly mounted on the upper surface of the workbench, a hydraulic cylinder is arranged on one side of the mounting frame, a punching rod is fixedly mounted at the telescopic end of the hydraulic cylinder, and the end of the punching rod is sleeved with a punching head. The punching head and the punching rod are fixed through a pin shaft, a fixed opening is formed in the upper surface of the working table, movable openings which are symmetrically distributed are further formed in the upper surface of the working table, and the punching device further comprises a fixing unit which is arranged in the mounting frame. A hydraulic cylinder is accurately fixed through the fixing unit, a punching head can be flexibly replaced, a flange is stably fixed through a gear and clamping unit, punching is completed through driving of the hydraulic cylinder, waste is discharged through a fixing opening, and after a single hole is machined, the rotating unit drives the flange to rotate, and secondary punching is conducted after the positioning unit conducts calibration and positioning. And the punching precision and the machining efficiency are effectively improved.

The invention discloses a prospecting drilling method for a steeply inclined ore deposit, which comprises the following steps of: firstly, carrying out comprehensive geological survey, acquiring and analyzing geological structure, rock characteristics and ore body distribution, designing a drilling path, downwards drilling on the ground according to a design scheme to form a main drill hole, then forming branch holes at different positions of the main drill hole, and finally, carrying out drilling on the main drill hole. And after exploration of each branch hole is completed, hole sealing operation is carried out. The comb-shaped exploration branch hole structure can obtain geological information of the ore body from multiple angles and positions, compared with traditional single-hole exploration, the shape, thickness change, grade distribution and the like of the ore body can be known in detail, exploration blind areas are effectively reduced, exploration precision is improved, exploration of multiple positions can be completed in the one-time drilling process through the one-hole multi-branch design, and the exploration efficiency is improved. The exploration efficiency is greatly improved, and the exploration time and cost are reduced.

1. Name of the design product: Electrical connector assembly. 2. Use of the design product: This design product is used for electrical connection, and Component 2, Component 3, and Component 4 are used in cooperation with Component 1. 3. Design key points of the design product: Lies in the shape. 4. Picture or photo that best shows the design key points: Perspective view of Combined State 1. 5. Other situations that need to be explained - Component description: This design product includes Component 1 (plug), Component 2 (single - hole socket), Component 3 (four - hole socket), and Component 4 (docking plug). Combined State 1 (plug + single - hole socket) is the situation when Component 2 is used in cooperation with Component 1, Combined State 2 (plug + four - hole socket) is the situation when Component 3 is used in cooperation with Component 1, and Combined State 3 (plug + docking plug) is the situation when Component 4 is used in cooperation with Component 1.

The utility model relates to a multi-channel single-hole puncture outfit with large-angle swing. The multi-channel single-hole puncture outfit comprises a sealing assembly and an imbedding assembly, the sealing assembly and the imbedding assembly are connected in a detachable mode. The sealing assembly comprises a plurality of instrument channels, a ventilation assembly and a sealing body; the instrument channel and the ventilation assembly are installed on the top face of the sealing body. In the multiple instrument channels, at least one instrument channel is a short instrument channel with the short length, and the remaining instrument channels are long instrument channels with the long length. The sealing device has the advantages that the long instrument channel is formed in the upper portion of the sealing body, the requirement for multi-directional swinging of instruments in the operation process is met, and the operation flexibility of the instruments in the operation process is improved.

The invention discloses a computer hard disk bracket machining device and method, and particularly relates to the technical field of computer hard disk bracket machining, the computer hard disk bracket machining device comprises a rack, a three-axis module is arranged in the rack, a mounting seat is arranged on the three-axis module, a clamping assembly is arranged on the mounting seat, and a drill bit assembly is arranged on the clamping assembly; the drill bit assembly comprises a drill bit base, a grinding sleeve, a drilling drill bit sleeve, a locking cover and a center shaft. The center shaft is installed in the middle of the top end of the drill bit seat, a drilling drill bit sleeve is inserted into the center shaft, and the ruler diameter of the drilling drill bit sleeve is gradually increased from bottom to top to form a multi-stage drilling structure. Polishing sleeves are arranged between the drill bit seats and the drilling drill bit sleeves and between the drill bit seats and the drilling drill bit sleeves, the polishing sleeves are inserted into the center shaft, the ruler diameters of the polishing sleeves are gradually increased from bottom to top, the polishing sleeves are matched with the corresponding drill bit seats / drilling drill bit sleeves in size, and a multi-stage polishing structure is formed. By means of the drill bit assembly integrating the multi-stage drilling drill bit sleeve and the grinding sleeve matched with the multi-stage drilling drill bit sleeve in size, the single-hole machining and grinding efficiency is greatly improved.