101results about How to "Reduced wear damage" patented technology

An electrical card connector (100) includes a housing (1) having a rear wall (11), and first and second side walls (12 and 13) substantially parallel extending forwards form the rear wall; a shielding member (5) covering on the housing and defining a receiving cavity together with the first and second side walls for receiving an electrical card (6), the receiving cavity having a font entry from which the electrical card is inserted into the receiving cavity; and a number of terminals (2) disposed in the housing and each having a contact portion (22) extending into the receiving cavity for contacting the electrical card. The shielding member is provided with a pair of guiding plates (56) at the front entry of the receiving cavity and disposed between the first and second side walls for guiding the electrical card into the receiving cavity.

The invention relates to a steam washing machine with a hanging-type clothes hanger. According to the technical scheme provided by the invention, the steam washing machine with the hanging-type clothes hanger comprises a box body, wherein a steam generator is arranged in the bottom of the box body, a washing room used for accommodating clothes is arranged in the box body, and outer jet holes are arranged on the wall of the washing room, communicated with the steam generator and used for spraying steam into the box body. The steam washing machine is characterized in that a hanging rod is arranged at the upper part of the washing room, and at least one clothes hanger is arranged on the hanging rod; at least one jet cylinder with hollow interior is vertically arranged at the bottom of the washing room, the jet cylinders are arranged under the clothes hangers and are in one-to-one correspondence with the clothes hangers, the lower ends of the jet cylinders are communicated with the steam generator, and inner jet holes are densely distributed all over the body of the upper part of the steam spray cylinder. The invention has smart and reasonable structure, high automation degree and favorable washing effect and can realize soft washing and reduce the wear damage to clothes by a large extent.

A security barrier apparatus which may be used in conjunction with an existing security gate or may be used as a stand-alone security barrier gate. The system uses a passive restraining device comprising a bollard having at least one catch horn extending therefrom which engages a corresponding structure on the gate to restrain the gate when impacted.

The invention discloses a correction mechanism on silicon wafer etching equipment, and relates to the technical field of silicon wafer production equipment. The correction mechanism comprises a base,a supporting seat, a conveying roller, a driving device, a conveying belt, a slide holder, a sliding seat, a correction mechanism and a guide wheel. The passive part of the correction mechanism is pushed by the trigger plate of the slide holder; a first gear with the diameter smaller than that of a rotating column is driven to rotate under transmission teeth on the rotating column (according to the transmission ratio principle in a mechanical transmission system, the rotating angle of the first gear equivalent to a small gear is larger than that of the rotating column equivalent to a large gear); the guide wheel is driven by the rotating part connected with the first gear to move in the arc direction from front to back along the arc end face of the silicon wafer, and front-back and left-right position correction of the silicon wafer is achieved. Besides, a second gear rotates along connecting teeth under the rotation of the rotating part, so that the guide wheel is driven to rotate. The static friction between the guide wheel and the silicon wafer is changed into dynamic friction, and the abrasion damage of the guide wheel to the silicon wafer is greatly reduced.

A composite locking upright having low weight and great rigidity for installation into a playing surface with built-in sleeves. The composite locking upright supports and secures a net at a net playing height for athletic sports such as, volleyball, tennis, and badminton. The composite locking upright may have a composite tube, a metallic tube, an upper protective collar, a lower protective collar, and a locking tool. The composite tube may be made of a light-weight, fiber-reinforced composite. The metallic tube is extendable and retractable from the composite tube and may be made of a light-weight, rigid metal. The protective collars may protect the composite tube substantially preventing damage to the reinforcing fibers during installation and setup. The locking tool locks the metallic tube with respect to the composite tube and thereby fixes a net at a playing height.

A composite locking upright having low weight and great rigidity for installation into a playing surface with built-in sleeves. The composite locking upright supports and secures a net at a playing height for athletic sports such as, volleyball, tennis, and badminton. The composite locking upright may have a composite tube, a multi-material tube, an upper and a lower protective collar, and a locking tool. The composite tube may be made of a light-weight, fiber-reinforced composite. The multi-material tube may be made at least in part of the same material and may incorporate at least one abrasion resistant area, which may be a partial or full thickness insert and may be, but is not necessarily, formed of a metal. The multi-material tube is extendable and retractable from the composite. The locking tool locks the multi-material tube with respect to the composite tube and thereby fixes a net at a playing height.

An electrical card connector (1) includes a housing (10) having a main body (13), and first and second sidewalls (11,12) substantially parallel extending forwards form opposite ends of the main body; the main body defining a receiving cavity together with the first and second sidewalls for receiving an electrical card, a plurality of terminals (20) disposed in the housing and each having a connect portion (21) extending into the receiving cavity for contacting the card, and a pair of switching terminals (41, 42) engaged with the housing and each defining a contacting portion to connect with each other, and a cover (50) engaged with the housing and covering onto the contacting portions of the switching terminals.

Rotary shaft (220), housing (250) and packaging type seal (230) together form seal cavity (260). Seal cavity throat protector (200) in cavity (260) protects seal (230) against damaging materials from the region of impeller (210). Such material is directed away from seal (230) along spiral groove(s) (280) on inner surface of protector (200) with the assistance of flushing fluid entering cavity (260) via bore (270) and passing to inner surface of protector (200) via radial bores therethrough.

An electrical card connector (1) includes a housing (10) having a main body (13), and first and second sidewalls (11,12) substantially parallel extending forwards form opposite ends of the main body; the main body defining a receiving cavity together with the first and second sidewalls for receiving an electrical card, a plurality of terminals (20) disposed in the housing and each having a connect portion (21) extending into the receiving cavity for contacting the card, and a pair of switching terminals (41, 42) engaged with the housing and each defining a contacting portion to connect with each other, and a cover (50) engaged with the housing and covering onto the contacting portions of the switching terminals.

A clutch assembly having an overall diameter and overall axial length. Both the axial length and the ratio of the length to the diameter are reduced. A translatable clutch piston is in communication with a pressure chamber and is movable between a piston neutral position and a piston activated position in response to air pressure. A cone clutch member is moved from a clutch engaged position to a clutch disengaged position in response to the translatable clutch piston moving from the piston neutral position to the piston activated position. The cone clutch member engages the rotating drive shaft when in the clutch engaged position. A clutch spring member biases the cone clutch member into the clutch engaged position with a clutch engagement force. The clutch spring has a primary spring ratio of a wire diameter to a spring diameter optimized such that a maximum spring force is achieved while minimizing the spring length. A movable carrier member for the spring member has an increased axial length to reduce and limit abrasion damage to the piston and member. The bearing assembly has a reduced axial length limited by the ratio of its length to its inner diameter.

An object of the present invention is to provide a sliding device that can surely reduce damage caused by mutual sliding behavior. To achieve the object, a sliding device in which a screw bolt having a male thread and a nut having a female thread hole in which a female thread is formed on an inner circumference are screwed together in a state capable of screw rotation and applied with repeating screw rotation so that the male thread and the female thread are subjected to a sliding load, wherein when Vickers hardness of a first metal material constituting the male thread of the screw bolt is H1, and Vickers hardness of a second metal material constituting the female thread on the inner circumference of the female thread hole in the nut is H2, |H1−H2|=300 HV0.1 to 350 HV0.1 is employed.

The invention discloses an automatic balancing device for discharging outlet material receiving plates of a parallel-connection mining crusher, and belongs to the field of coal mine mechanical equipment. The automatic balancing device comprises the material receiving plates (1), a rotary bottom plate device (3), a single-chip microcomputer (5) and a supporting seat (8). A hydraulic control device (2) is connected between each material receiving plate and the rotary bottom plate device (3); the rotary bottom plate device (3) is hinged to the supporting seat (8); an inclination angle sensor (4) is arranged on a bottom plate (3-1); each hydraulic cylinder (2-2) is provided with a magnetostrictive displacement sensor (6); the output ends of the inclination angle sensor (4) and the magnetostrictive displacement sensors (6) are connected with the input end of the single-chip microcomputer (5), and the output end of the single-chip microcomputer (5) is connected with control circuits of the hydraulic control devices (2). The automatic balancing device can automatically adjust the balance of the two material receiving plates to reasonably distribute the positions of materials which fall onto a conveying belt, so that the abrasion damage to the conveying belt is relieved. The automatic balancing device for the discharging outlet material receiving plates of the parallel-connection mining crusher is good in adaptability, good in anti-disturbance performance and long in service life.

The invention relates to a convenient-to-clean environment-friendly wallboard with microparticle adsorptivity. The convenient-to-clean environment-friendly wallboard comprises a main body and a guiding rod groove; bolt columns are connected to the left side and the right side of the top end of the interior of the main body, the main body is in threaded connection with the bolt columns, installation plates are installed on the inner sides of the bolt columns, and the main body is tightly attached to the installation plates; movable columns are arranged in the middles of the installation plates,and the movable columns are movably connected with the installation plates; and clamping plates are fixed to the upper ends and the lower ends of the installation plates, and locking plates are arranged in the middles of the inner sides of the clamping plates. The convenient-to-clean environment-friendly wallboard has the beneficial effects that the locking plates can be clamped between the mainbody and the guiding rod groove through movement of a guiding rod between the locking plates and the guiding rod groove, the dust between the main body and the guiding rod groove can be cleaned, the locking plates can be assembled and installed on the main body through the guiding rod, accordingly an adsorption material can be installed between the wallboard and the guiding rod groove, and the phenomenon that the adsorption material falls off can be prevented because the locking plates are clamped between the main body and the guiding rod groove.

The invention relates to a system for preparing semi-coke from low-rank coal. The system comprises an air classification unit, a kneading unit, a tar oxidation unit, a screening unit, a shaping unit,a pyrolysis unit, a coal gas cooling unit, and a residual heat recovery unit. The invention further relates to a method for preparing semi-coke by using the system. The method and the system disclosedby the invention can solve the problems of low pulverized coal ball formation rate, low ball strength, severe gas explosion and a lot of half balls, and thus, the utilization rate of powder can be increased; and moreover, the yield and quality of pyrolytic tar and gas and semi-coke obtained by the method are high.

A vortex-free water pump control valve, comprising: a valve body (1), a valve cover (2), a valve flap (3) and an opening and closing device (4); the valve body (1) is provided with a water inlet (11), a water outlet (12) and an assembly opening (13); the water inlet (11), the water outlet (12) and the assembly opening (13) are in communication with each other at an inner side of the valve body (1); the valve body (1) is provided therein with a valve seat (14); the valve cover (2) is disposed on the assembly opening (13) of the valve body (1) and is provided with a skirt sleeve (21); the valve flap (3) is movably disposed at an inner side of the skirt sleeve (21) of the valve cover (2), and the valve flap (3) is arranged so as to be in transmission connection with the opening and closing device (4); the valve flap (3) is provided thereon with a groove (36) and a 3-15 block copper-zinc alloy guiding block (37) which extends in the axial direction; an inner side wall of the skirt sleeve (21) is plasma-sprayed with a chromium oxide ceramic coating having a thickness of 0.1-0.6 mm; an angle between the axial center line between the water inlet (11) and the water outlet (12) as well as the axial center line of the valve cover (2) is 65±3°; and the opening and closing device (4) is fixed on the valve cover (2).