36results about How to "Uniform axial force" patented technology

The invention relates to a positioning and bonding technology of a truncated-cone-shaped composite material part and a truncated cone-shaped metallic part. The technology comprises: the modification of a numerical control presser used for positioning and bonding, the manufacture of tooling for locking and positioning, trial assembly, glue application, official assembly, curing and the like. The technology adopts the specially designed tooling for locking and positioning and solves the technical problem of precise positioning in bonding process; the numerical presser is adopted to press assembly parts and as the axial force imposed by the numeric presser is even and stable, axial displacement generated during the traveling process of heat insulating sleeves of the assembly parts is prevented so as to guarantee the axial positioning and the consistency in axial degree of products after bonding; the technology adopts the numerical presser to press the assembly parts and has high precision in axial positioning, and the effective displacement quantity of the truncated-cone-shaped composite material part can be precisely controlled so as to guarantee that the square erection of the truncated cone-shaped composite material part can cross the distance up to the bottom of the truncated cone-shaped metallic part. The technology is used and promoted in practice, with a one-time bonding qualified rate up to over 99 percent, thereby greatly saving raw materials.

The invention belongs to a steel truss support capable of windowing and a steel truss barrel structure including the same. A node plate (7) is connected with a framed beam (5) and a frame column (6), two ends of a long inclined support (2) are respectively connected with a support rod (8), and the support rod (8) is connected with an end plate (9) and is respectively connected with the framed beam (5) and the frame column (6). A horizontal support (3) is connected with a vertical support (4), the connecting position between the horizontal support (3) and the vertical support (4) is connected with the long inclined support (2), and a short inclined support (1) is respectively connected with the node plate (7) and the long inclined support (2). Connectors of the short inclined support (1), the long inclined support (2), the horizontal support (3), the vertical support (4), the support rod (8) and the end plate (9) are prefabricated by a factory. The steel truss support improves the bearing capacity of the structure by increasing width and thickness of supporting flanges, a window can be arranged at a position where the support is arranged, and the economic benefit and the applicability are improved while steeling using amount is saved.

The invention discloses a bracket weaving method and a bracket made by the method. The method uses a cylindrical fixture, takes any position point as a reference as a starting point, and makes the wire alternately bend up and down along a diagonal direction through a positioning pin. Folding movement and winding movement up and down through the positioning pin along the direction of the circumferential dividing line, and through the crossing between the wires to form a woven net with a combination of benzene ring structure and rhombus structure. The vertical straight rods in the benzene ring structure are parallel to the axis of the stent. After the stent is released from the sheath to the human cavity, due to the existence of the vertical straight rods, compared with the prior art, the stent will not be shortened too much in the longitudinal direction. The point on the vertical straight rod is only subjected to the force along the axis of the stent, thereby reducing the transverse stretch of the whole stent and reducing the shortening rate of the stent.

The invention discloses a deep foundation pit steel pipe internal support prestress applying device. By designing the bolt sleeve type support device, compared with the steel welding reinforcement method, the axial force is more uniform, and the device is detachable and convenient for assembly and transportation. The bolt-type struts are inserted into the sleeve group arrangement, and the prestress can be gradually applied to the design value by using the jack multiple times at different points in time. Corresponding to different support force requirements, use the corresponding steel pipe, and formulate the bolt diameter and length, the number of sleeves, the number of ribs, etc. through calculation, and the design prestress application requirements can be achieved when using the corresponding torque. The device has strong practicability, safety and reliability, simple construction, easy installation and dismantling, high efficiency and less material consumption.

The invention relates to a crushing equipment for sintered cake in a steel plant, that is, a single-roller crusher. it Including the frame, there is a rotating main shaft on the frame, and a plurality of toothed rollers with single teeth are arranged on the main shaft, and a plurality of single teeth are evenly distributed along the circumference of the toothed rollers, and an alloy hammer head is fixed on the side of each single tooth tip , the main shaft is supported on the bearing seats installed on both sides of the frame, the main shaft is driven by the driving mechanism and the reduction mechanism, the toothed rollers start from the transmission direction, and each toothed roller is evenly offset from the previous toothed roller starting from the second toothed roller Installed at a certain angle; the offset angle is equal to the angle between two single teeth on the toothed roller divided by the number of toothed rollers. On the premise of ensuring the high temperature resistance and wear resistance of the equipment, more attention is paid to the research on the service life of the equipment. By changing the installation angle of the toothed rollers, the axial force is very uniform, and the difference between the axial force and the radial force is reduced. The phenomenon that the shaft breaks evenly improves the stress on the main shaft and the life of the main shaft, thereby improving the overall life of the equipment.

The invention relates to an electric hydraulic ring-plug pump, and belongs to the technical field of hydraulic power element structures. A bearing, an oil distribution sleeve, a spring, a ring plug, a guiding ring, a tilting disc, a driving ring, a tilting disc, a guiding ring, a ring plug, a spring, an oil distribution sleeve, a spring, a ring plug, a guiding ring, a tilting disc, a driving ring, a tilting disc, a guiding ring, a ring plug, a spring, an oil distribution sleeve and a bearing sequentially sleeve a hydraulic pump stator of the electric hydraulic pump from left to right, and abut against each other. The electric hydraulic pump disclosed by the invention is simple in structure and adopts few movable parts, so that the reliability of the electric hydraulic pump is improved, and the cost of the electric hydraulic pump is reduced; the electric hydraulic pump is a two-way hydraulic pump; the distance between a high-pressure oil cavity and a low-pressure oil cavity is long, and equal to the heights of the two ring plugs, and the internal leakage between the high-pressure oil cavity and the low-pressure oil cavity is small; the rigidity of the springs of the hydraulic pump is high, so that the self-sucking capability of the hydraulic pump is high; the electric hydraulic pump is provided with few rotating parts, so that the rotating inertia is small.

The invention relates to a leakage-proof V-shaped ball valve which comprises a valve body, a valve seat, a V-shaped ball body, a valve rod and a 90-degree drive device. The leakage-proof V-shaped ball valve is characterized in that upper filler and lower filler are installed in a groove-shaped filler box; an upper adjusting block and a lower adjusting block are installed between the upper filler and the lower filler; a disc spring is installed between the upper adjusting block and the lower adjusting block; a left-hand thread is arranged on the lower portion, in contact with the valve rod, of the upper adjusting block; a right-hand thread is arranged on the upper portion, in contact with the valve rod, of the lower adjusting block; the portions, combined with the upper adjusting block and the lower adjusting block; of the valve rod are provided with threads matched with the left-hand thread of the upper adjusting block and the right-hand thread of the lower adjusting block; a gland is installed on the outer wall of the groove-shaped filler box through the threads; and a cushion block presses the upper filler, the upper adjusting block, the disc spring, the lower adjusting block and the lower filler under the action of downward force of the gland. The leakage-proof V-shaped ball valve has the advantages that automatic compensation is conducted after filler abrasion, a dual seal function of combination of soft seal and metal seal is achieved between the valve rod and the filler, the leakage prevention property is good, and the service life is long.

A ring plug type electro-hydraulic actuator belongs to the technical field of hydraulic power. A bearing, an oil distribution sleeve, a spring, a ring plug, a guide ring, a swash plate, a driving ring, a swash plate, a guide ring, a ring plug, a spring, an oil distribution sleeve, a spring, a ring plug, a guide ring, a swash plate, a driving ring, a swash plate, a guide ring, a ring plug, a spring, an oil distribution sleeve and a bearing are sequentially arranged on a hydraulic pump stator from left to right in a sleeving manner, a piston of a piston rod assembly is arranged in an oil cylinder in a seal sliding manner, a piston rod at one end of the piston rod assembly penetrates through a through hole in the center of a seal end cover in a seal sliding manner, and a piston rod at the other end of the piston rod assembly penetrates through a through hole in the center of a connector end cover in a seal sliding manner. The ring plug type electro-hydraulic actuator is high in integration degree, rapid in piston rod action and reaction and high in conversion efficiency, and belongs to a mechanical, electrical and hydraulic integrated product. Internal leakage between high and low pressure oil cavities is little, and the self-sucking capability is strong.

The invention provides a grinding device for the side of a cylindrical rock specimen and a method for using the same. The grinding device includes a base, a stable support, a clamping column and a grinding rod. A motor and a limit expansion rod are arranged in the base. The entire device is supported and fixed by a stable pillar, and the clamping pillar is fixed between the bases for firmly clamping the rock specimen. The grinding rod is evenly arranged around the clamping pillar for grinding the side of the rock specimen. The method includes clamping the rock test piece, installing a grinding rod, adjusting the position of the rock test piece, grinding the rock test piece, and picking up the rock test piece. The side grinding device for the cylindrical rock test piece and the use method thereof in the present invention are not easy to damage the rock test piece , practical and efficient, with a high success rate of production, and can be ground at one time to produce rock specimens with precise diameter and smooth surface, which lays the foundation for laboratory rock mechanics tests and is of great significance to the prevention and control of mine disasters.