7results about How to "Achieve deceleration" patented technology

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 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 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.

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 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.