71results about How to "Large impact load" patented technology

The invention discloses a high-toughness casting aluminum alloy containing the following components in percentage by weight: 9.5-11.0 percent of Mg, 0.1-0.4 percent of Ti, 0.1-0.3 percent of RE, 0.15-0.30 percent of Si and the balance of Al and unavoidable trace impurities, wherein the content of single elements in the trace impurities is less than 0.10 percent, and the total content of the trace impurities is less than 0.50 percent. The invention also discloses a preparation method of the high-toughness casting aluminum alloy. The high-toughness casting aluminum alloy has the advantages of high tensile strength, high elongation, low price of raw materials, short production flow, easy control on the process flow and the like, and complicated smelting equipment and subsequent thermal treatment hot standby are not needed; on the premise of satisfying the mechanical properties of the members, the overall production cost is lower.

The invention provides an electric multistage actuating cylinder retracting and releasing locking device which comprises an outer cylinder, a middle cylinder, an inner cylinder, a screw and a two-stage steel ball lock mechanism mounted on the outer side of the screw. The outer cylinder, the middle cylinder and the inner cylinder are three coaxial sleeves which are sequentially embedded mutually, the middle cylinder and the inner cylinder are fixedly connected with the two-stage steel ball lock mechanism respectively, and the steel ball locking mechanism drives relative motion of upper and lower locking sliders and upper and lower sliding sleeve through joint action of the screw and upper and lower elastic elements so as to realize locking and unlocking of upper and lower steel balls; a steel ball lock is a mechanical lock, so that the device can bear high impact load in a locked state; an internal thread of the lower sliding sleeve does not be meshed with an external thread of the screw when a multistage actuating cylinder is at a fully-retracted position, and after the middle cylinder and the inner cylinder complete locking through an upper-stage steel ball lock mechanism, the inner cylinder drives the lower sliding sleeve to move upwards so as to be meshed with the screw to complete unfolding of the middle cylinder, so that due to this stage-by-stage unfolding mode, the multistage actuating cylinder is long in unfolding stroke and needless of manual operation in the process of retracting and releasing.

This electric braking device transmits power generated by an electric motor to a pressing member and causes pressing force to be generated by the pressing member with respect to a friction member. The electric braking device includes a lock mechanism. A locked state (in which movement of a locked section in a direction in which pressing force decreases is impossible) is achieved in the lock mechanism by: performing “supplied power amount reduction control” in which the amount of power supplied to the electric motor is reduced while a locking member is maintained in a lockable position; causing the locked section to move in the direction in which pressing force decreases; and causing the locking member and the locked section to engage. When performing supplied power amount reduction control, the amount of power supplied is first reduced by a large reduction gradient and then reduced by a small reduction gradient.

The invention relates to a high-speed strong impact testing machine which comprises a workbench, an impact table, a lifting device, a rack, a top plate, a first acceleration device and a second acceleration device, the rack and the top plate are connected through a guide column. The guide column is further connected with a workbench and an impact table. One end of the lifting device is arranged onthe top plate; the other end of the lifting device can be connected with or make contact with or be separated from the workbench, one end of the first acceleration device is arranged on the top plate, the other end of the first acceleration device can be connected with or be separated from the workbench, one end of the second acceleration device is arranged on the rack, and the other end of the second acceleration device can make contact with or be separated from the impact table. Three impact effects of light impact, medium impact and high-strength impact can be achieved.

The invention discloses a discharge coil for an electromagnetic riveter, wherein the center of the coil is a core tube, an initial end of a copper strip is welded with the core tube, the core tube is The invention discloses a discharge coil for an electromagnetic riveter, wherein the center of the coil is a core tube, an initial end of a copper strip is welded with the core tube, the core tube issiating hole at the center of the coil improves heat dissipation conditions of the coil and reduces the temperature rise speed of the coil; the whole coil is packaged in the shell so as to ensure thatdiating hole at the center of the coil improves heat dissipation conditions of the coil and reduces the temperature rise speed of the coil; the whole coil is packaged in the shell so as to ensure thatthe coil can bear larger impact load; and the design of a partition improves the insulating property of the coil. the coil can bear larger impact load; and the design of a partition improves the insulating property of the coil.urrounded by layers of the copper strip wrapped by glass fabric, the continuous copper strip forms a cake-shaped disc in a shell, a round insulating board is arranged on the cake-shaped disc, the censurrounded by layers of the copper strip wrapped by glass fabric, the continuous copper strip forms a cake-shaped disc in a shell, a round insulating board is arranged on the cake-shaped disc, the center of the insulating board is a through hole matched with the upper end of the core tube, a supporting plate is arranged on the insulating board, an insulating layer is arranged on the supporting plater of the insulating board is a through hole matched with the upper end of the core tube, a supporting plate is arranged on the insulating board, an insulating layer is arranged on the supporting plate, a connecting line is fixedly connected with a countersunk nut on the shell, and the supporting plate is supported against two countersunk square nuts. The invention also discloses a method for prote, a connecting line is fixedly connected with a countersunk nut on the shell, and the supporting plate is supported against two countersunk square nuts. The invention also discloses a method for producing the discharge coil. The countersunk nuts are adopted, so the external dimension of the coil is reduced and the coil can be conveniently arranged into a small-scale electromagnetic riveter; a raducing the discharge coil. The countersunk nuts are adopted, so the external dimension of the coil is reduced and the coil can be conveniently arranged into a small-scale electromagnetic riveter; a rad

The invention relates to a measuring device, particularly to a device for measuring a contact force of a foot of a human body. With the measuring device, problems that costs for manufacturing the existing force-measuring platform and force-measuring shoes are high and the pressure sensor can not measure contact force information effectively in different motion states can be solved. A three-dimensional force sensor and two one-dimensional force sensors are arranged between a bottom steel plate and a top steel plate; a roller pin row structure is arranged right above one of the two one-dimensional force sensors and below the top steel plate; and a roller row gasket is arranged between the roller pin row and the top steel plate. The other one of the two one-dimensional force sensors is arranged below calcaneus, is installed in a circular groove of a bottom carbon plate and is fixedly connected with the bottom steel plate. A rear CM clamp groove is fixedly installed on a lower end surface of the top steel plate by a CM cover plate and is arranged right above one of the two one-dimensional force sensors. A tightening reed is arranged below a foot arch. The device provided by the invention is used for measuring the contact force of the foot of the human body.

The invention discloses a novel rubber suspension assembly, and belongs to the technical field of manufacture of vehicle parts. The novel rubber suspension assembly is characterized by comprising a rubber suspension fixing and welding plate (1) and a rubber suspension main welding and balancing beam (4) which are mutually arranged in parallel, wherein a rubber suspension main spring (3) is mounted between the rubber suspension fixing and welding plate (1) and the rubber suspension main welding and balancing beam (4); a supporting frame is arranged on the left side of the upper part of the rubber suspension main spring (3), a supporting frame is arranged on the right side of the upper part of the rubber suspension main spring (3), the two supporting frames are connected with two end parts of the rubber suspension fixing and welding plate (1) respectively, and a rubber suspension auxiliary spring (2) is vertically arranged at the middle position of the corresponding supporting frame; the lower part of the rubber suspension main spring (3) is connected to the middle position of the rubber suspension main welding and balancing beam (4).The novel rubber suspension assembly is light in structure, long in service life and convenient to maintain and preserve, and the novel rubber suspension assembly conforms to light weight requirements.

The invention discloses an optical mirror magnetic suspension supporting device. The optical mirror magnetic suspension supporting device comprises an axial electromagnetic guiding device, a radial electromagnetic guiding device and an optical mirror fixing device. In the axial electromagnetic guiding device, electromagnets I are uniformly mounted on a bottom plate at the lower end of the opticalmirror fixing device, and permanent magnets I are uniformly mounted at the bottom of the optical mirror fixing device. In the radial electromagnetic guiding device, electromagnets II are uniformly mounted on the inner sides of vertical mounting plates on the edge of an electromagnet mounting frame through screws, and permanent magnets II are uniformly mounted on the outer wall of the optical mirror fixing device through set screws. The side face of an optical mirror to be processed is limited and fixed to the optical mirror fixing device through locking screws. The optical mirror magnetic suspension supporting device can implement height supporting and posture adjustment on the mirror in the optical primary mirror processing process. The supporting device is effectively protected against damage caused by processing impact or vibration through flexible supporting. Meanwhile, the problems of friction, leakage, stagnation and the like occurring through an original supporting method are solved. The optical mirror magnetic suspension supporting device is easy to maintain and convenient to operate.

The invention discloses a high-toughness casting aluminum alloy containing the following components in percentage by weight: 9.5-11.0 percent of Mg, 0.1-0.4 percent of Ti, 0.1-0.3 percent of RE, 0.15-0.30 percent of Si and the balance of Al and unavoidable trace impurities, wherein the content of single elements in the trace impurities is less than 0.10 percent, and the total content of the trace impurities is less than 0.50 percent. The invention also discloses a preparation method of the high-toughness casting aluminum alloy. The high-toughness casting aluminum alloy has the advantages of high tensile strength, high elongation, low price of raw materials, short production flow, easy control on the process flow and the like, and complicated smelting equipment and subsequent thermal treatment hot standby are not needed; on the premise of satisfying the mechanical properties of the members, the overall production cost is lower.

The present invention discloses a multifunctional double-swing rod impact tester. According to the multifunctional double-swing rod impact tester, a removable swing rod position limitation mechanism is arranged on the host machine rack, a lifting system and a braking system are connected through a swing shaft and are arranged on the top end of the host machine top end, the upper swing rod is suspended on the middle of the swing shaft so as to achieve the lifting and the braking of the double-swing rod system, the upper swing rod and the lower swing rod form a hinged connection in the double-swing rod system, the lower end of the lower swing rod is connected with a pendulum, the hinged connection position of the upper swing rod and the lower swing rod is provided with an angle adjusting device, a buffer device is arranged between the upper swing rod and the lower swing rod, a measurement system is arranged on the base through a buffer pad, and a high speed sensor and a high speed data acquisition device are adopted to display the change curve of the force values in the horizontal direction and the vertical direction along with the time, the change of the variant feature point along with the time and the like through a computer during the impact process. The present invention provides the multifunctional double-swing rod impact tester with characteristics of high impact force, good buffer effect and safety on operators.