35results about How to "Instantaneous gear ratio constant" patented technology

The invention discloses a valve capable of changing a gas flow direction and relates to the technical field of valves, in particular to a valve capable of changing the gas flow direction. The valve comprises a rotary control device and a transmission control device. The valve body is arranged below the rotary control device which comprises a driving wheel, a fixed sleeve, a transmission gear, a fixed shaft, a built-in rack and a spindle sleeve. The spindle sleeve is arranged in the driving wheel, the fixed shaft is arranged in the transmission gear, and an air flow adjusting device is arrangedbelow the transmission control device. The valve capable of changing the gas flow direction improves the service performance of equipment greatly while increasing a structure. The improved equipmentcan be connected to a plurality of pipelines simultaneously to achieve a splitting operation. A guiding and adjusting operation to gas can be carried out in the valve body, so that the flow directionof gas is changed. Pavement of the pipelines and huge application of the valve bodies are reduced as much as possible, so that the using demand of people is met effectively.

The high-precision and fast measuring device for the diameter of shaft parts is characterized by a pair of left-end movable bayonet and right-end movable bayonet that can slide toward each other along the diameter direction of the measured shaft to form a bayonet-type probe. Between the moving bayonets, a grating measuring device for measuring the relative sliding distance between the left end moving bayonet and the right end moving bayonet is installed. The grating measuring device is composed of a grating ruler and a grating head. The moving direction is set in parallel and is fixedly connected with the right-end movable bayonet, and the grating head arranged opposite is fixedly connected with the left-end movable bayonet. The invention can realize fast and accurate measurement of the diameter of shaft parts, and can directly display the measurement results on the computer screen to realize the functions of data storage and transmission; it can also calculate the shaft parts by processing and analyzing the measurement data Data information such as cylindricity and conicity.

The invention provides a transmission mechanism of a crawler-type machine. The transmission mechanism of the crawler-type machine comprises a power input device, a first hydrostatic transmission system, a second hydrostatic transmission system, a first planetary transmission mechanism, a second planetary transmission mechanism, a first power output device, a second power output device and a reversing device, wherein the first hydrostatic transmission system and the second hydrostatic transmission system are connected with the power input device, the first planetary transmission mechanism and the second planetary transmission mechanism are in transmission connection with the first hydrostatic transmission system and the second hydrostatic transmission system, the first power output device is connected with the first planetary transmission mechanism, the second power output device is connected with the second planetary transmission mechanism, and the reversing device is connected with the first planetary transmission mechanism or the second planetary transmission mechanism. According to the transmission mechanism of the crawler-type machine, high precision equipment is not needed for controlling the power output quantity of the two sides of the machine, and the cost is greatly reduced; meanwhile, due to the fact that the mechanical transmission efficiency usually can reach over 90%, waste of energy is avoided. Therefore, by means of the transmission mechanism of the crawler-type machine, the problems that in the prior art, the cost of the transmission mechanism is high, and the efficiency is low can be solved.

The invention discloses a rotatable omni-directional electroplating device for electronic elements. The rotatable omni-directional electroplating device includes a main body frame, pressure-bearing springs and an electric rotary table, the main body frame is internally provided with a power output device, and the upper portion of the main body frame is provided with a supporting base; an operationplatform is arranged on the upper portion of the supporting base, and a fixed bearing is arranged inside the operation platform; and the fixed bearing is internally provided with a bearing column, the upper portion of the bearing column is connected with an outer surround, the lower end of a built-in base is internally provided with a positioning block, and the upper end of a moving rotary tableis internally provided with a positioning socket. According to the rotatable omni-directional electroplating device for the electronic elements, compared with existing ordinary electroplating devices,the use performance of the rotatable omni-directional electroplating device is greatly improved while increasing the structure, the improved rotatable omni-directional electroplating device has a better and more comprehensive electroplating capability and a bidirectional staggered rotation capability, the machining efficiency of the electronic elements is indirectly improved, and the use demandsof people is effectively met.

The invention discloses a vehicle-mounted pavement crack detection system verifying device based on gear driving and aims at solving the verifying problem of a width variation crack detection result of a vehicle-mounted pavement crack detection system. The vehicle-mounted pavement crack detection system verifying device based on gear driving is mainly composed of a base (1), a bearing seat (2), amotor (3), a clockwise triangular prism rotary shaft (4), a counter clockwise triangular prism rotary shaft (5), a straight gear (6) and a bearing (7). The system provides a vehicle-mounted pavement crack detection system verifying device based on gear driving which is small in space occupation, simple in structure, high in verifying precision, easy and convenient to operate, easy to mount, low incost and reliable in property.

The invention discloses a crane with a stable structure for assembling a building. The crane comprises a foundation support, a driving gear and a rotating shaft. The top of the left end of the foundation support is provided with an electromotor, and the bottom end of the electromotor is internally provided with fixing screws. The top of the foundation support is provided with a main body shell, the left side of the lower end of the main body shell is internally provided with a fixing bearing, the driving gear is movably arranged on the right side of the fixing bearing, and the top end of the driving gear is movably connected with a reducing gear. The right side of the reducing gear is movably provided with a transmission gear, and the bottom of the transmission gear is movably connected with a braking disc. The rotating shaft is movably arranged on the right side of the main body shell, and the outer side of the rotating shaft is provided with a shaft sleeve. The front end and the rearend of the electromotor are both provided with three fixing screws and are connected with the top of the foundation support so that the electromotor can be arranged on the foundation support more firmly, the electromotor generates strong vibration in work, and the electromotor is fixed through the multiple screws so that the vibration of the electromotor can be relieved.

The invention discloses a gantry rolling type concrete coating equipment, relates to the technical field of concrete coating equipment, in particular to a gantry rolling type concrete coating equipment, comprising a supporting stretching mechanism and a smoothing mechanism, the supporting pulling A suspension mechanism is arranged under the front end of the stretching mechanism, and a material shaft mechanism is arranged above the supporting and stretching mechanism. The left and right ends of the guide shaft are provided with connecting seats, the upper end of the smoothing block is provided with a connecting shaft, and the rear of the smoothing block is provided with supporting wheels. The gantry rolling concrete film coating equipment greatly improves the performance of the whole device while increasing the structure. The improved equipment can not only realize independent power control, but also perform smoothing operations after film coating to maintain the upper surface of the concrete. The flatness effectively meets people's needs.

The present invention relates to an obstacle-free carbon-free trolley with a "∽" shape walking. The potential energy bracket 4 is installed with a wire wheel bracket 3 and a secondary fixed pulley 1 through a wire wheel shaft 14. The front wheel bracket 6 is installed with a front wheel 7 through a front wheel steering shaft. Drive wheel 20 and driven wheel 11 are installed on the drive shaft 16, pinion 12 is installed on the drive shaft 16, bull gear 13 and small pulley 17 are installed on the bobbin shaft 14, and large pulley 18 is installed on the axle that is connected with crank connecting rod 9. The small gear 12 meshes with the large gear 13, the small pulley 17 is connected to the large pulley 18 through the belt 19, one end of the wire rope 22 is connected to the potential energy block 2, the wire rope 22 is wound around the secondary fixed pulley 1 and wound in the winding groove 15, and the wire rope 22 The other end of the pin is positioned through the wire hole on the secondary fixed pulley 1. The invention utilizes the falling potential energy of the potential energy block to convert into the kinetic energy of the trolley, and through gear meshing and belt transmission, the trolley avoids obstacles periodically and remotely according to a predetermined track, and the structure is simple and convenient.

The invention discloses a device for controlling the posture of a projectile. The device for controlling the posture of the projectile comprises a guide rail; a groove is formed in the guide rail; a sliding strip is embedded in the groove; a thread channel is formed in the length direction of the sliding strip; the sliding strip is connected with a lead screw through the thread channel; a plurality of sawteeth are arranged sequentially on the upper surface of the sliding strip; the sliding strip is engaged with an incomplete gear through the sawteeth; the incomplete gear is connected to a fixing ring through two connecting rods; a rudder shaft is sleeved with the fixing ring; and rudder pieces are connected to the two ends of the rudder shaft correspondingly. Pneumatic control force is generated by changing the deflection angles of the rudder pieces, and the purpose of controlling the posture of the projectile is achieved, and the rudder pieces are simple in structure, convenient to mount and low in cost; and screw transmission and incomplete gear transmission are adopted, the structure is compact, response is rapid, transmission is efficient and accurate, and the constant instantaneous transmission ratio is achieved.