116results about How to "Prevent sideways" patented technology

The invention discloses a driving anti-slip control method and device of a four-drive electric vehicle. The control method comprises the following steps of detecting wheel speeds of four vehicle wheels of the electric vehicle and the depth of an accelerator pedal; according to the vehicle speeds of the vehicle wheels, estimating the vehicle speed of the electric vehicle, determining the road conditions of the electric vehicle according to the wheel speeds of the vehicle wheels and the vehicle speed, and obtaining demand torque of the electric vehicle according to the depth of the accelerator pedal, wherein the road conditions comprise the low tire-road friction starting pavement, the joint pavement and the bisection pavement; conducting driving anti-slip control on the vehicle wheels respectively according to the road conditions and the demand torque. By means of the driving anti-slip control method, it can be guaranteed that after the electric vehicle enables the anti-slip function, the rear vehicle wheels do not turn very fast, the electric vehicle does not skew, the yaw velocity is within a certain range, ground adhesive force can be utilized to the greatest extent, and the capability for the electric vehicle to get rid of the trouble is improved.

Provided is a height self-adjusting bogie of a railway wagon. The two ends of side frame components of the bogie are arranged on wheel axle components in a bearing mode, height self-adjusting devices are arranged between a swing bolster and the side frame components, each height self-adjusting device comprises a bearing support plate installed on a central square frame through bearing springs, struts are arranged on the two sides of each bearing support plate, each strut is sleeved with a tapper sleeve assembly, a middle support plate is stacked on each bearing support plate, the two sides of the middle support plate are arranged on outer taper sleeves of the tapper sleeve assembly in a sleeved mode respectively, a limiting frame is arranged on the upper portion of the middle support plate, the two sides of the limiting frame are arranged on the struts in a sleeved mode respectively, convex rings are arranged on the bottom face of the limiting frame, through holes are formed in the center of the middle support plate and the center of the bearing support plate respectively, a pull rod is installed in the through holes, the upper end of the pull rod is hinged to the hinge end of a left crank throw and the hinge end of a right crank throw, the free ends of the left crank throw and the free ends of the right crank throw are each provided with upper rolling wheels and lower rolling wheels, limiting rolling shafts are arranged in the middle of the left crank throw and the middle of the right crank throw, a return spring is arranged below the middle support plate, the upper surface of the middle support plate abuts against the lower rolling wheels, the upper rolling wheels abut against the inner surface of the swing bolster, and the swing bolster is arranged on the struts in a sleeving mode. The height self-adjusting bogie of the railway wagon is suitable for railway wagons.

The invention discloses a double feedback hydraulic control one-way throttle governing combination valve which comprises a valve body. A first oil channel and a second oil channel for passing high-pressure oil are connected in series on the valve body. The valve body is also provided with a throttle valve for switching on or off the first oil channel and the second oil channel, a one-way valve is arranged in parallel between the first oil channel and the second oil channel, and the valve body is also provided with two feedback oil ports for controlling the opening status of the throttle valve. The combination valve adopts two hydraulic pressure signals to control the size of a throttle orifice; the one-way valve and the throttle valve are integrated into a whole; the throttle valve works while doing the forward movement, and the one-way valve works while doing the backward movement; and the two pressure signals have no impact on the one-way valve. Thus, the throttle orifice works and the drilling rate is slower when a core is drilled during the coring process; and the one-valve works to realize rapid drilling and retreating when the rapid drilling and retreating is required.

The invention discloses a height self-adjusting device of a railway wagon. The height self-adjusting device of the railway wagon comprises a bearing support plate installed on a central square frame through bearing springs, struts are arranged on the two sides of the bearing support plate, each strut is sleeved with a tapper sleeve assembly, a middle support plate is installed on the bearing support plate in a stacking mode, the two sides of the middle support plate are installed on outer taper sleeves of the tapper sleeve assembly in a sleeved mode, a limiting frame is arranged on the upper portion of the middle support plate, the two sides of the limiting frame are arranged on the struts in a sleeved mode respectively, convex rings are arranged on the bottom face of the limiting frame, through holes are formed in the center of the middle support plate and the center of the bearing support plate respectively, a pull rod is installed in the through holes, the upper end of the pull rod is hinged to the hinge end of a left crank throw and the hinge end of a right crank throw, the free ends of the left crank throw and the free ends of the right crank throw are each provided with upper rolling wheels and lower rolling wheels, limiting rolling shafts which can form limiting with the limiting frame are arranged in the middle of the left crank throw and the middle of the right crank throw, the left crank throw and the right crank throw are located on the upper portion of the middle support plate, a return spring is arranged below the middle support plate, and the upper surface of the middle support plate abuts against the lower rolling wheels. The height self-adjusting device of the railway wagon is suitable for railway wagons.

The invention discloses a collision energy absorption device of an emergency lane. The collision energy absorption device mainly comprises a fastened barrier, constraint enclosing walls and an energy absorption baffle, wherein the energy absorption baffle has the function of absorbing energy, the constraint enclosing walls can prevent vehicles from tilting, and the fastened barrier can stop vehicles out of control, so that the vehicles cannot continue to go forward . A set of collision energy absorption device is mounted at the tail end of the emergency lane, when a vehicle runs down a long slope, the brake of the vehicle is invalid, and the vehicle is forced to run into the emergency lane, so that vehicles running at different speeds can be guaranteed to be braked by a braking bed of the emergency lane in a limited distance at first, and then are forced to pass through the collision energy absorption device mounted at the tail end of the emergency lane, and finally, the vehicles stop safely and reliably.

The inorganic material is prepared from, by weight, 30-90 parts of specially-made cement, 0.1-20 parts of an accelerator, 6-35 parts of stone powder, 0.4-26 part of bentonite, 0.2-10 parts of sulfate,0.1-15 parts of a water reducing agent, 0.1-18 parts of silicon-calcium powder, 0.1-17 parts of an early strength agent, 0-10 parts of fine powder, 0-5 parts of iron powder, 0.2-20 parts of fly ash and 0.3-11 parts of gypsum. A vertical anchor rod hole is drilled in a coal-rock mass by using an anchor rod drilling machine, an anchor rod is inserted into the anchor rod hole, inorganic materials are mixed according to a water-cement ratio of (0.28-0.4): 1, and grouting is performed by using the anchor rod to reinforce the coal-rock mass. The inorganic material has the effects of preventing fireand ensuring safe production of a coal mine and roadway utilization; repeated roadway repair is completely eradicated, slope deviation and roof fall are prevented, operation is easy, and safety and reliability are achieved; and the inorganic material is economical and applicable.

The invention relates to a device of a sheet pile conveying system of a building material press, in particular to a lifting device for building material press rails. The lifting device comprises the rails. The rails comprise the fixed rails and the lifting rail, the lifting rail is located below a fixed work table on the lower part of the press and is in butt joint with the fixed rails at the two ends. A hydraulic cylinder is arranged on the bottom of the lifting rail. According to the invention, a pass-type trolley can convey sheet piles for an upper pressurization type press, the requirement of the continuous production process can be met, the production efficiency can be improved, the structure is simple, maintenance is convenient and the service life is long.

The invention provides an automatic deviation rectifying system and tires applying the same. The automatic deviation rectifying system comprises a plurality of tires, collecting devices, an offset device and a controller, and the collecting devices are arranged in the tires respectively; the acquisition device is configured to acquire data in each tire and connect the data with the controller; wherein the offset device is configured to detect the offset of the vehicle, and the acquired offset comprises a displacement path, an offset amount and an offset trend; and the acquisition device and the bias device are respectively in control connection with the controller. By adopting the tire pressure detection mechanism and the detection table, the change of the table pressure can be detected, afault signal is sent to the controller or the control unit, and the controller or the control unit processes the existing fault, so that the fault of lateral deviation or turnover of a vehicle is prevented.

The invention relates to an assembled concrete prefabricated component mold, including a mold mechanism and a supporting mechanism; in the invention, the mold adopts an assembled structure, so that when the prefabricated component is molded and demolded, the mold mechanism can be disassembled to achieve convenient disassembly and assembly of the prefabricated At the same time, during the disassembly process, there is no need to carry and flip the prefabricated components, so as to prevent the damage of the prefabricated components. Specifically, the mold consists of No. 1 master mold, No. 2 master mold, No. 1 slave mold and No. 2 Assembling the slave molds, when removing the molds, first disassemble the No. 1 slave mold and the No. 2 slave mold, and then remove one of the No. 1 master mold or No. 2 master mold, so that the demoulding of the prefabricated component can be realized.

The invention discloses a height self-adjusting device of a railway wagon. The height self-adjusting device of the railway wagon comprises a bearing support plate installed on a central square frame through bearing springs, struts are arranged on the two sides of the bearing support plate, each strut is sleeved with a tapper sleeve assembly, a middle support plate is installed on the bearing support plate in a stacking mode, the two sides of the middle support plate are installed on outer taper sleeves of the tapper sleeve assembly in a sleeved mode, a limiting frame is arranged on the upper portion of the middle support plate, the two sides of the limiting frame are arranged on the struts in a sleeved mode respectively, convex rings are arranged on the bottom face of the limiting frame, through holes are formed in the center of the middle support plate and the center of the bearing support plate respectively, a pull rod is installed in the through holes, the upper end of the pull rod is hinged to the hinge end of a left crank throw and the hinge end of a right crank throw, the free ends of the left crank throw and the free ends of the right crank throw are each provided with upper rolling wheels and lower rolling wheels, limiting rolling shafts which can form limiting with the limiting frame are arranged in the middle of the left crank throw and the middle of the right crank throw, the left crank throw and the right crank throw are located on the upper portion of the middle support plate, a return spring is arranged below the middle support plate, and the upper surface of the middle support plate abuts against the lower rolling wheels. The height self-adjusting device of the railway wagon is suitable for railway wagons.

The invention provides a pipe squeezing device for waste recycling. The pipe squeezing device comprises a bottom supporting plate used for supporting the bottom of the device, two side plates, a squeezing cylinder used for squeezing a pipe, an adaptive squeezing mechanism used for squeezing a steel pipe and an arrangement feeding mechanism used for feeding. The two side plates are fixedly connected to the surface of the bottom supporting plate; the squeezing cylinder is fixedly connected between the two side plates; and the adaptive squeezing mechanism is arranged on the squeezing cylinder. The invention relates to the field of pipe squeezing. According to the pipe squeezing device for waste recycling, the specific structure capable of continuously squeezing and cutting the pipes is designed to solve the problems that it is inconvenient to intensively squeeze the pipes and the squeezing difficulty is high during existing pipe squeezing work. Therefore, the problems are solved that a general squeezing machine cannot intensively squeeze the waste pipes, the pipes are embedded into metal wastes in the iron squeezing process of an iron squeezing machine, a lot of space is occupied, and the waste metal packaging effect is affected to a certain extent.

The invention provides a screw clamping device mounted on a screwdriver. According to the adopted scheme, the screw clamping device comprises an outer sleeve, an inner sleeve, a clamping assembly andan elastic compression part; a fastener mounting hole is formed in the upper part of the inner sleeve, and the inner sleeve and the outer sleeve are detachably connected together; the upper part of the clamping assembly is mounted on the lower part of the outer sleeve in an embedded mode and the clamping assembly can slide in the longitudinal direction of the outer sleeve. An opening used for allowing screws to be loaded in is formed in the lower part of the clamping assembly, and the clamping assembly can expand outwards at the opening of the clamping assembly and clamp the screws; and the elastic compression part is mounted in the outer sleeve and located between the inner sleeve and the clamping assembly According to the screw clamping device, the screws can be prevented from falling and laterally deviating due to the lack of magnetic attraction of a screwdriver head, and thus the locking attachment efficiency of the screws and the operability of quick locking adsorption of the screws in a narrow and long space are improved.