35results about How to "Reduce job cycle time" patented technology

The present invention provides a highly efficient development environment that can easily verify the performance, processing load, and display status of an embedded device and shorten the cycle time of development. It includes a display unit (107), a central operation unit (105), a rendering operation unit (106), and a storage unit (101). The central operation unit (105) interprets the content described in the command address in the storage unit (101) at each predetermined operation unit clock, and performs various operation processes. The rendering operation unit (106) shares the memory unit (101) with the central operation unit (105) and performs rendering operation processing. The display unit (107) and the rendering operation unit (106) share the specified storage space starting with the display address in the storage unit (101), and display on the display device ( 108) on. Furthermore, it is allowed to provide the storage unit (101) and / or the central processing unit (105) outside the status display device.

The invention relates to a ventilation system, in particular to an underground blind tunnel ventilation system. Local ventilating fans of the system are arranged in a crossdrift, one inlet-outlet of the local ventilating fans is formed in a working face range of a blind tunnel through a drainage air barrel, the other inlet-outlet is connected to a branch barrel with an opening facing the wind direction and a branch barrel with an opening opposite to the wind direction in the crossdrift through a tee joint respectively, an air channel switching valve plate for opening and closing the two branch barrels is installed at the position of the tee joint, a smoke dust sensor is arranged at the rear end of the drainage air barrel, a smoke dust sensor is also arranged at the front end close to the drainage air barrel, of the blind tunnel, and the smoke dust sensors are connected with a fan control module through data lines. The problem that traditional system smoke dust air flows are in relatively-balanced low-efficiency state is solved, smoke dust close to the head-on position performs outwards diffuses and moves to an effective suction distance or effective range of the air barrel so as to effectively improve the smoke dust explosion efficiency in blind tunnel tunneling operation work.

The invention discloses a bucket special for an excavator. The bucket comprises an outer bucket body and an inner bucket body mounted in the outer bucket body through a compressed spring; an outward-extending convex edge is formed on the flaring end of the inner bucket body, the outer bucket body comprises an outer bucket plate and a pair of outer side plates arranged on the two sides of the outer bucket plate, the inner bucket body comprises an inner bucket plate corresponding to the outer bucket plate and a pair of inner side plates corresponding to the outer side plates, the outer bucket plate comprises an outer arc plate, a first outer straight plate and a second outer straight plate, the first outer straight plate and the second outer straight plate are located at the two ends of the outer arc plate, and are tangent to the outer arc plate, and a plurality of through holes are formed in the outer arc plate. Surface adhesive materials in the bucket can be effectively unloaded thoroughly, the work circulation time of the excavator is reduced, and the effective capacity of the bucket is improved.

A single-pump hydraulic control loop of a key drilling action of a cutting drill rig comprises a load-sensitive variable pump, a load-sensitive multi-way valve, a rotary motor, a propulsion oil tank, a drilling logic control block, a rotation guide handle, a propulsion guide handle, and a hydraulic oil tank. An oil inlet of the load-sensitive variable pump is connected with the hydraulic oil tank. An oil outlet and a load-sensitive opening of the load-sensitive variable pump are connected with an oil inlet and a load-sensitive opening of the load-sensitive multi-way valve respectively. Each valve pressure difference compensator of the load-sensitive multi-way valve is provided with an external control opening. The external control openings are connected with the drilling logic control block. The rotation guide handle and the propulsion guide handle are connected with the drilling logic control block or a guide control opening of the load-sensitive multi-way valve. The double-pump hydraulic control loop has the advantages that power head rotation-proportion-controlled propulsion is achieved, high-speed rotating with propulsion prior to rotation is achieved, fast rod lifting while retaining certain rotation speed is achieved, and the like.

The invention discloses a mining method for a hanging wall surrounding rock broken inclined medium thick orebody. Stope division is carried out on the orebody along the orebody trend, broken ores aretransported in stages, subsections are divided within the stages, sublevel drift mining method is adopted in advance for stoping and filling of the orebody close to the hanging wall, the drift too plates of at one ends of all sublevel mining drifts close to a heading wall are interconnected to form a slope, thus making preparations for trench ore-drawing and enabling trench ore-drawing at all subsections, then a bottom-up stoping sequence is employed for stoping and filling of each subsection orebody, thereby effectively solving the problem of potential safety hazard when a carry scraper enters a stope for a long time. In addition, implementation of downward fan-shaped medium-deep holes improves the rock drilling efficiency and safety, all construction guarantees no destruction to the hanging wall broken surrounding rock, also a rock drilling gallery is employed as the air-return way, and the problem of difficult ventilation is effectively solved. The method provided by the invention generally shows significant security measures in ore drawing, rock drilling and ventilation of middle-low grade hanging wall surrounding rock broken inclined medium thick stable orebodies.

The invention discloses a bucket for an excavator. The bucket comprises a bucket plate, side plates symmetrically arranged on two sides of the bucket plate, bucket teeth arranged at one end of the bucket plate, and a scraper unit mounted at the other end of the bucket plate, wherein the scraper unit includes a base plate fixedly arranged at a free end of the bucket plate, a lead screw assembly mounted on the base plate, a motor assembly mounted at one end of the base plate for driving the lead screw assembly, a first cover for covering the motor assembly and the lead screw assembly, a second cover for covering an opening end of the first cover, a scraper arranged in an accommodating cavity defined by the bucket plate and the side plates for removing attached matters on the inner wall of the bucket plate, and a connecting rod for connecting the scraper with the lead screw assembly. The bucket for the excavator can effectively scrape off the attached matters on the inner wall of the bucket plate to improve the effective volume of the bucket.

The present invention provides a cylindrical material spinning device which is formed at a cylindrical material protruding edge portion and will not deform and fall off from a tension giving mechanism even a larger tension is put in an axial direction of the cylindrical material and a spinning method. The spinning device has the tension giving mechanism (4) which applies the tension to the axial direction of the cylindrical material (1) through the protruding edge portion (11) formed at an opening end portion of the cylindrical material (1); and a supporting mechanism (5), wherein the protruding edge portion (11) of the cylindrical material (1) is clamped between the supporting mechanism and the tension giving mechanism (4), and ironing is performed while the tension is applied to the axial direction of the cylindrical material (1) when the protruding edge portion (11) of the cylindrical material (1) is clamped between the tension giving mechanism (4) and the supporting mechanism (5).

The invention discloses an excavator bucket capable of preventing soil adhesion. The excavator bucket comprises an external bucket body, a internal bucket body, a baffle ring and a cam unit. The internal bucket body is hinged inside the external bucket body; the baffle ring is mounted at the flared end of the external bucket body and used for guiding materials into the internal bucket body; and the cam unit is mounted on the external bucket body to make the internal bucket body swing back and forth inside the external bucket body. The excavator bucket capable of preventing soil adhesion can unload the soil in the bucket effectively, and shorten the working time of an excavator, and the effective bucket capacity of the excavator bucket is improved.

A double-pump hydraulic control loop of a key drilling action of a cutting drill rig comprises a double linkage load-sensitive variable pump set, a double oil intake linkage load-sensitive multi-way valve, a rotary motor, a propulsion motor, a drilling logic control block, a rotation guide handle, a propulsion guide handle, and a hydraulic oil tank. An oil inlet of the double linkage load-sensitive variable pump set is connected with the hydraulic oil tank. An oil outlet and a load-sensitive opening are connected with an oil inlet and a load-sensitive opening of the double oil intake linkage load-sensitive multi-way valve respectively. Each valve pressure difference compensator of the load-sensitive multi-way valve is provided with an external control opening. The external control openings are connected with the drilling logic control block. The rotation guide handle and the propulsion guide handle are connected with the drilling logic control block or a guide control opening of the load-sensitive multi-way valve. The double-pump hydraulic control loop has the advantages that power head rotation-proportion-controlled propulsion is achieved, independent load-sensitive control of rotation and propulsion is achieved, propulsion speed is increased, and the like.

The invention discloses an excavator bucket. The excavator bucket comprises a bucket plate, side plates formed on both sides of the bucket plate, and a bucket tooth mounted on the bucket plate. The bucket plate comprises an arc plate, a first straight plate and a second straight plate; the first straight plate and the second straight plate are located at the two ends of the arc plate correspondingly and are both tangent to the arc plate; the bucket tooth is mounted at the free end of the first straight plate; and a forced soil unloading unit is arranged in an accommodating chamber defined by the bucket plate and the side plate. The excavator bucket can unload soil in the bucket effectively, and shorten the working time of an excavator, and the effective bucket capacity of the excavator bucket is improved.

The invention discloses a large cross-section weak surrounding rock tunnel three-step and six-part short-distance construction method, which comprises the steps as follows: (1) annularly excavating an upper step of an upper part arc pilot tunnel, transferring excavated earthwork of the upper step to a lower step; (2) excavating a left part of a middle step about 4.5-5 meters behind the upper step, and transferring excavated earthwork to the lower step; (3) excavating a right part of the middle step about 3-4 meters behind the left part of the middle step, and transferring excavated earthwork to the lower step;(4) excavating a left part of the lower step about 6-8 meters behind the left part of the middle step or about 3-4 meters behind the right part of the middle step, and conveying excavated earthwork of the left part of the lower step out of the tunnel; (5) excavating a right part of the lower step about 3-4 meters behind the left part of the lower step, and conveying excavated earthwork of the lower step out of the tunnel; and (6) excavating the rest part of the tunnel bottom about 20-25 meters behind the right part of the lower step, excavating continuously according to the steps in a circulating and interlacing manner, and finally realizing tunnel excavating construction. The method can be used for building a large cross-section tunnel in a safe, rapid and economic manner.

A hybrid core drive device according to an embodiment is provided with: a cylinder tube; a first cover member at one end of the cylinder tube; a second cover member at the other end; a rod which has a connection part to which the core is connected at one end of the cylinder tube, has an annular flange on the second cover member side, and penetrates the first cover member; the nut is fixed on the rod; a screw shaft penetrating the second cover member and the nut and provided so as to be insertable into the rod; a motor that rotates the screw shaft; a piston which is provided in the cylinder tube, through which the rod passes, and which is capable of sliding relative to the cylinder tube and the rod; and a connection part capable of connecting a pipe for supplying the operating fluid to a region surrounded by the cylinder tube, the first cover member, and the piston.

The invention discloses a control method for reducing the overflow protection time of a hydraulic system. In a working stroke of a hydraulic cylinder, when the system pressure value is greater than the set value P2, the PLC electric control unit calculates the instantaneous time of the system pressure value Pt Change rate Kt, when the instantaneous change rate Kt is less than the set value A0, that is, the system pressure rises slowly, it is determined that the hydraulic cylinder moves to the maximum stroke position, and the PLC electronic control unit issues an instruction to de-energize the corresponding electromagnet and stop the power supply. Oil, using this control method, no matter how the load changes, it can always make the piston rod move in place, and at the same time reduce the high pressure overflow time, reduce useless power and heat, improve the efficiency of the hydraulic system, reduce the oil temperature, reduce the operating cycle time, and improve the operating efficiency. Beats, improve work efficiency.

The present invention provides an electronic parts installation apparatus, capable of stably and accurately recognizing hold mode of the electronic parts. The apparatus includes a substrate holding part; a member supply part for supplying the electronic parts; a loading head having an adsorption nozzle; a loading head shifting mechanism capable of locating the loading head arbitrarily; a filming unit arranged on the loading head to film the electronic part absorbed by the adsorption nozzle; a filming reflection mirror extended between the member supply part and the substrate holding part and having only one reflecting plane; and an image processing device for judging the position and angle of the absorbed electronic part relative to the absorption nozzle according to the filming image of the electronic part obtained through reflection of the filming reflection mirror, wherein the reflecting plane of the filming reflection mirror is an inclined plane which adopts a bisecting line between a central line of the adsorption nozzle and the line of sight of the filming unit as its perpendicular line.