14results about How to "Achieve deceleration" patented technology

The invention relates to the technical field of motors, and particularly discloses a driving motor of an electric vehicle, which comprises a motor body, an output shaft is rotatably connected in the motor body, a heat dissipation protective cover is fixedly connected to the right side of the motor body through bolts, and heat dissipation fan blades are fixedly connected to the side wall of the output shaft in the heat dissipation protective cover. A rotating shaft is rotationally connected into the heat dissipation protective cover, the rotating shaft and the output shaft are in transmission connection through a magnetic coupler, and a cleaning driving mechanism is arranged in the heat dissipation protective cover. The rotating shaft is driven to rotate through the magnetic coupler, then the cleaning driving mechanism is driven to operate in cooperation with the planetary gear mechanism, and the operating cleaning driving mechanism can clean the air inlet of the heat dissipation protective cover on one hand and provides power for work of the dredging mechanism on the other hand; therefore, the problems that the air inlet of the protective cover in the motor heat dissipation device is easily blocked by sundries such as soil, the temperature of the motor is possibly increased, and the service life of the motor is influenced can be solved.

The utility model discloses a waste heat steam pipeline safety pressure relief protection device, which relates to the technical field of waste heat steam pipeline safety pressure relief, and comprises a pressure relief valve, a pressure relief pipeline is arranged on the right side of the pressure relief valve, the input end of the pressure relief valve is fixedly connected with the pressure relief pipeline through a flange, and the right side of the pressure relief pipeline is fixedly connected with a protection shell. A pressure relief channel is arranged in the protective shell, the pressure relief pipeline is communicated with the pressure relief channel, the top of the pressure relief channel is round and provided with an arc-shaped groove, an arc-shaped plate is arranged in the protective shell and is in a round labyrinth shape, a pressure relief outlet is formed in the upper right portion of the arc-shaped plate, and a pressure inlet pipeline is fixedly connected to the top of the left side of the pressure relief channel. The input end of the pressure relief valve is connected with the pressure relief pipeline flange, steam enters the protection shell through the pressure inlet pipeline and then enters the middle of the protection shell, steam distribution, speed reduction and noise reduction are achieved through the labyrinth groove formed in the arc-shaped plate, then the steam is discharged from the lower left portion in the protection shell, and the functions of distribution, noise reduction and speed reduction are achieved.

The present application relates to the technical field of impact hammer, in particular to a kind of seat forceless pneumatic impact hammer device, comprising: shell, impact body assembly, hammering piston assembly, impact cylinder.Impact body assembly has elastic member and impact rod, the outer circumferential surface right end of impact rod has first protruding portion.Hammering piston assembly has piston piece, piston piece has main body portion and the impact portion located in the left side of main body portion, piston piece moves towards or away from impact rod, the main body portion and impact cylinder form the hammering piston front gas chamber and hammering piston rear gas chamber of not intercommunication, and impact portion is located in hammering piston front gas chamber.Impact cylinder is located in working chamber and is close to the first installation step of the inner circumferential surface of the side where opening is located;Front gas hole and rear gas hole are provided on impact cylinder, hammering piston front gas chamber is communicated with front gas hole, and hammering piston rear gas chamber is communicated with rear gas hole.In this way, the problem of inconvenient carrying and large back force of pneumatic impact hammer is solved.

The application discloses a kind of automobile parts laser intelligent welding systems, it is related to intelligent welding system technical field, including device shell and the turnover support, buffer intercept mechanism, positioning mechanism, welding mechanism being arranged in device shell;Turnover support, positioning plate is rotationally arranged thereon, and first component, second component to be laser welded are arranged on positioning plate;Buffer intercept mechanism, it drives first component, second component rotation and carries out elastic buffering, deceleration, intercept to rotating first component, second component;Positioning mechanism, it is connected to turnover support and carries out orientation to first component, second component;Welding mechanism, it carries out welding fixed operation to first component, second component.The present application can solve the problem that existing automobile parts welding intelligent welding system is used when component is prone to sudden change of thrust, acceleration effect and occurs shaking, welding place misplacement, the situation that welded position is disconnected, in turn, affects welding quality.

This application relates to the field of cutting tool technology, and provides a metal cutting tool with a vibration damping component, comprising a tool head and a tool shank. The tool head includes an insert and a shank, the insert being mounted on the shank, and the shank being mounted on the tool shank. A first vibration chamber is formed in the shank, and a second vibration chamber is formed in the tool shank. The first and second vibration chambers are in communication. A first damping block is disposed in the first vibration chamber, and a second damping block is disposed in the second vibration chamber. An abutment block and a first telescopic spring are disposed between the first and second damping blocks. Based on this, the first and second damping blocks move under the action of damping oil, and the abutment block and the first telescopic spring achieve a buffering effect of mutual collision, absorbing and canceling the vibration energy, thereby eliminating vibration energy and achieving the effect of vibration reduction.

The utility model belongs to the technical field of unmanned plane, concretely relates to an unmanned plane brake wheel, including fork arm, wheel shaft, wheel hub, tyre, bottom cover, brake drum, brake shoe and rocker, the utility model discloses a brake component is integrated in the wheel cavity of wheel hub, has reduced the volume and weight of overall structure, meets the requirement of unmanned plane to light weight and compact structure, has improved the flight performance and endurance of unmanned plane, again adopts the brake mode of brake shoe and brake drum friction, can provide greater braking force, ensures that unmanned plane can stop rapidly and effectively when needing to brake, and realizes the transmission of brake line tension to brake shoe action through rocker, rotating rod and other components, and its structure is simple, transmission efficiency is high, reduces the possibility of energy loss and fault occurrence, and is easy to maintain and overhaul, reduces use cost.

The utility model discloses a buffer rack and a stamping system for winding and receiving materials. A rack is provided with a feeding end and a discharging end; the feeding conveying assembly comprises a first conveying roller, a first clamping device and a first pressing roller. The first clamping device drives the first pressing roller to move towards the first conveying roller. The first power device drives the first transmission roller to rotate; the discharging conveying assembly comprises a second power device, a second conveying roller, a second clamping device and a second pressing roller. The second clamping device drives the second pressing roller to move towards the second conveying roller. The second power device drives the second transmission roller to rotate; the first sensor, the second sensor, the third sensor and the fourth sensor are used for detecting the material belt. By the adoption of the scheme, the buffering frame and the stamping system for winding and receiving the materials are provided, the feeding conveying assembly and the discharging conveying assembly are arranged to control conveying of the two sides of the material belt at the controllable speed, and the sensors are arranged to control the conditions of the material belt at the feeding end side and the discharging end side.

The application discloses a flexible opening and closing control method of an electromagnetic valve based on speed feedback and belongs to the field of electromagnetic valve control. Different driving voltages are respectively used to drive each stage of the controlled electromagnetic valve, and each driving voltage is connected to the controlled electromagnetic valve through switching of a switching switch. A magneto-electric vibration speed sensor is installed on the controlled electromagnetic valve, and the magneto-electric vibration speed sensor converts the vibration signal of the controlled electromagnetic valve into an electric signal reflecting the moving speed of the valve core. The moving speed of the valve core is detected in real time through the magneto-electric vibration speed sensor, and the speed feedback controller is fed back, so that the starting time and the ending time of the negative voltage loading of the opening movement and the starting time and the ending time of the high voltage loading of the closing movement can be accurately controlled, the deceleration of the opening and closing movement of the electromagnetic switch valve is realized, and flexible opening and closing are realized.

The utility model relates to the technical field of stop valves, and discloses a high-pressure stop valve, which comprises a valve body, a valve rod, a valve clack, a valve cover and a valve seat, an inlet flow channel and an outlet flow channel are arranged at two ends of the valve body, an overflow port communicated with the inlet flow channel and the outlet flow channel is arranged in the valve body, the valve cover is arranged at the valve neck end of the valve body, and the valve rod is arranged on the valve seat. A valve hole is formed in the middle of the valve cover, the valve rod penetrates through the valve hole, and the bottom end of the valve rod extends into the outlet flow channel to be in linkage connection with the valve clack, and is characterized in that a buffer plate is fixedly arranged in the inlet flow channel, a plurality of buffer holes are formed in the buffer plate in a penetrating mode, and a rubber sleeve is fixedly arranged on the surface of the buffer plate in a sleeving mode; and the edge of the rubber sleeve is in contact with the inner wall of the inlet runner. The high-pressure stop valve solves the problem that when a high-pressure stop valve in the prior art is rapidly closed, a water hammer effect can be generated, and a pipeline and a valve are unfavorable.

The utility model relates to a feeding device on a wire pipe joint processing line, which comprises a feeding channel which is transversely and obliquely arranged, a vertical right baffle plate is inserted into a trough at the upper part of the feeding channel, and a vertical left baffle plate is inserted into a trough at the lower part of the feeding channel; a longitudinal cylindrical right balancing weight and a longitudinal cylindrical left balancing weight are formed on the left side of the lower end of the right baffle and the right side of the lower end of the left baffle correspondingly, the upper ends of the right baffle and the left baffle extend out of the feeding channel correspondingly to form a cylindrical annular right shaft sleeve and a cylindrical annular left shaft sleeve, and a right hinge shaft and a left hinge shaft are inserted into the right shaft sleeve and the left shaft sleeve correspondingly; the two ends of the right hinge shaft and the two ends of the left hinge shaft are inserted and fixed to arc-shaped side supports respectively, and the side supports are fixedly connected to the outer walls of the front side and the rear side of the feeding channel respectively. A buffer and retention structure is arranged in the feeding channel, so that the speed of the connecting pipes in the feeding channel can be reduced, and the connecting pipes can be output from the feeding channel one by one.

This utility model discloses a high-rigidity double-gear planetary reducer, including a sun gear, a planet carrier, and at least three double-gear planetary gears. The double-gear planetary gears include a large gear and a small gear. The sun gear meshes with the large gear, and the small gear meshes with an internal gear ring. A housing is connected to the bottom of the internal gear ring, and a crossed roller bearing is provided between the housing and the internal gear ring. A gear shaft is fixedly connected to the sun gear, and a wiring hole is provided through the gear shaft and the sun gear. A hollow structure coaxially connected to the wiring hole is provided between the planet carrier, the internal gear ring, the housing, and the crossed roller bearing. This utility model has the characteristics of achieving a suitable speed ratio in a single-stage reduction and allowing for hollow wiring.

The application relates to the field of engineering machinery, and discloses a control method and a control device for hoisting equipment and the hoisting equipment. The hoisting equipment comprises a driving mechanism and an executing mechanism. The control method comprises the following steps: obtaining a preset position and an actual position of the executing mechanism; performing forward movement processing on the preset position to obtain an expected position; performing feedback control on the deviation between the expected position and the actual position to obtain a feedback frequency; and controlling the driving mechanism to work according to the feedback frequency to drive the executing mechanism to act. The scheme can reduce control errors.

The utility model relates to the technical field of energy batteries, and discloses an energy storage device, which comprises a box body, a connecting body and batteries, the connecting body is arranged in the box body, a plurality of connectors are arranged on the connecting body, the batteries are arranged in the box body, and the plurality of batteries are inserted into the plurality of connectors in a one-to-one correspondence manner. The connector is arranged in the box body, the connectors are arranged on the connector, so that the batteries are inserted into the connectors in a one-to-one correspondence mode, the batteries are connected and assembled conveniently through the insertion mode between the batteries and the connectors, and when a certain battery in the box body is subjected to thermal runaway, a defective battery can be quickly pulled out from the connectors conveniently, so that the thermal runaway of the battery in the box body is avoided, and the service life of the battery is prolonged. A defective battery is isolated in time, influence on other batteries is avoided, loss caused by thermal runaway is reduced as much as possible, and the whole energy storage device is not scrapped.

The invention relates to the technical field of wind power generation, and discloses a mechanical variable-pitch protection system and a wind turbine generator. The mechanical variable-pitch protection system comprises an energy storage device, a transmission device, a transmission shaft, a main shaft and blades which are connected in sequence; the variable pitch driving mechanism is connected with the energy storage device through the transmission device and connected with the blades. The mechanical variable-pitch protection system has a first state that blades rotate to drive a main shaft to rotate, a transmission shaft rotates, a transmission device acts, and kinetic energy is stored in an energy storage device; and in the second state, when the control module receives a shutdown signal and a failure signal of the electrically-driven variable pitch system, the energy storage device releases energy, and the blades are driven to rotate to the 90-degree feathering position through the transmission device and the variable pitch driving mechanism. According to the mechanical variable-pitch protection system, when the wind turbine generator set is shut down emergently and the electric drive variable-pitch system fails, the blades are driven to rotate to the 90-degree feathering position, energy input is reduced, speed reduction of the wind turbine generator set is achieved, and overspeed and accidents are prevented.