11results about How to "Simple and compact structure" patented technology

The application discloses a high-reliability long-service-life compensator for spacecraft thermal control and a preparation method, relates to the field of space temperature control fluid loop compensators, and comprises a storage tank body, an upper cover and a bellows assembly. The upper cover is welded to one end of the storage tank body, and the bellows assembly is welded to the other end of the storage tank body. The bellows assembly is located inside the storage tank body and is used for connecting a thermal control fluid loop. A liquid cavity is formed in the bellows assembly, the liquid cavity is communicated with the thermal control fluid loop, and an air cavity is formed between the bellows assembly and the storage tank body. The main function of the compensator is to reduce fluid loop pressure fluctuation, prevent cavitation caused by excessively low inlet pressure of the loop pump, and compensate for the reduction of liquid working medium caused by long-term operation, maintenance and micro-leakage of the system. The product provided with a liquid level sensor also has a liquid level display function.

The application discloses a rail polishing unit and a rail polishing trolley, and the rail polishing unit comprises a suspension assembly, a unit frame assembly, a motor mounting platform, a motor guide assembly, a polishing motor, a polishing grinding wheel, a lifting driving mechanism and a deflection driving mechanism. The suspension assembly is connected with a trolley frame, and the unit frame assembly is slidably connected with the suspension assembly. The motor mounting platform is hinged with the lower part of the unit frame assembly, and the motor guide assembly is connected with the motor mounting platform. The polishing motor is slidably connected with the motor guide assembly, and the polishing grinding wheel is connected with the output shaft of the polishing motor. The two ends of the lifting driving mechanism are respectively hinged with the polishing motor and the motor mounting platform. The two ends of the deflection driving mechanism are respectively hinged with the trolley frame and the motor mounting platform. The application can solve the technical problems of the existing rail polishing unit, such as large space occupation, large lifting resistance, low polishing efficiency and poor maintainability.

The application discloses a grinding device for hardware tool manufacturing and relates to the field of hardware machining equipment.The device comprises a hanging bracket, a grinding belt, a roller, a power motor, a servo motor and a distance adjusting, lifting, pressure regulating and separating assembly.The grinding belt is arranged around the outer side of the roller, and the servo motor is a common power source.The distance adjusting assembly adjusts the distance between the rollers through a worm and a two-way screw rod, and is suitable for different curved radii;ball screws cooperate with locking structures to drive the rotary seat to move, and a pressure spring is used for adjusting the pre-tightening force of the grinding belt.The separating assembly is provided with a ratchet and pawl structure, and the device can automatically slip and protect when the load is overloaded during roller distance adjustment.The device can switch between single power and two kinds of adjustment modes of roller distance and sand belt tension, simplifies the device structure, solves the problems of different steps and poor adaptability of traditional devices, and can meet the grinding requirements of workpieces with different hardness and radii.

The application provides an automatic sand belt changing mechanism of a robot terminal sand belt machine, which comprises a frame body, a rotating assembly installed in the middle of the frame body, a stand installed on the top of the rotating assembly, and a plurality of belt changing assemblies installed on both sides of the stand. The belt changing assembly comprises a vertical plate fixedly installed on the side wall of the stand, a carrier fixed on the top of the vertical plate, a carrier vertically and slidably installed on the bottom of the vertical plate, and a lifting part connected to the carrier on the bottom of the vertical plate. An avoidance wheel is fixed on the carrier, and a supporting wheel is slidably installed on the avoidance wheel along the axial direction. The supporting wheel is used for preloading of the annular sand belt. The supporting wheel is elastically connected to the carrier through a first spring. A sliding part is arranged between the supporting wheel and the avoidance wheel, and an oil injection part is connected to the sliding part. The automatic sand belt changing mechanism can perform the whole process of automatic old sand belt unloading and automatic new sand belt sleeving, and does not need manual intervention in the whole process, thereby greatly shortening the downtime of the sand belt changing and effectively improving the operation rate of the automatic polishing workstation.

The application discloses a multifunctional industrial robot gripper, and belongs to the technical field of robot end actuators, which comprises a mechanical arm connecting frame and a cylinder clamping mechanism arranged below the mechanical arm connecting frame, the cylinder clamping mechanism can rotate around its own axis; a clamping ring assembly is arranged on the cylinder clamping mechanism, a plurality of clamping heads are arranged on the clamping ring assembly in a circumferential direction, and the clamping heads can be switched by rotating around the own axis; the clamping ring assembly is driven to move towards or away from each other by a forward and reverse screw rod, so as to clamp an object to be clamped; a camera assembly is arranged in the cylinder clamping mechanism, and the camera assembly is driven to rotate around its own axis by a driving mechanism, so as to change an observation angle. The application realizes the integration of the clamping head switching, clamping and visual observation structure, and improves the adaptability of the gripper to multiple types of objects.

The invention belongs to the technical field of water treatment, and particularly relates to an integrated microbial culture water treatment system which comprises a filter box, a fermentation box, a treatment box and a filter tank, a fine filter screen and a coarse filter screen are mounted on the upper side and the lower side of an inner cavity of the filter box respectively, and the lower side of the filter box is connected with a sewage inlet pipe; the sewage inlet pipe is located on the lower side of the coarse filter screen, a first communicating pipe is arranged on the upper side of the filter box, located on the upper side of the fine filter screen and connected with a treatment box, and a second communicating pipe is connected to the bottom of the fermentation box and communicated with the treatment box. A fixed seat is connected to the lower end of the left side of the treatment box through bolts, an aeration generator and an aeration pipe are installed on the fixed seat, the aeration generator is located on the outer side of the treatment box, pollutants in water are utilized or converted by microorganisms, the concentration of the pollutants is reduced, then the pollutants are filtered through a filtering tank, free microorganisms are removed through a filtering membrane, and the pollutants are purified. Therefore, water treatment is completed.

The utility model discloses switch electromagnetic valve and damping adjusting device belong to electromagnetic valve technical field, and the design is for solving the problem that existing electromagnetic valve is driven by magnetic force entirely and so on cone rod. The utility model discloses switch electromagnetic valve includes: valve body, valve piece group, control valve body, including control valve main part and installation column, and the control valve main part is opened with valve body recess along the axial direction, and the lateral wall on valve body recess is opened with radial through -hole, control valve core is arranged in valve body recess in one end, spring is abutted to control valve core in one end, and spring and control valve body are located the opposite sides of control valve core respectively, valve bush, electromagnetic base and valve seat. The utility model discloses switch electromagnetic valve and damping adjusting device, and spring can provide auxiliary driving force for control valve core, need not drive by magnetic force entirely, and the energy consumption is low, and the performance requirement of magnetic force driving device is low, and the response speed of control valve core is fast, and the service life of this switch electromagnetic valve is long, the structure is more simple, and the use is more comfortable, and the use cost is low.

This invention provides an airtightness testing mechanism and device. The airtightness testing mechanism includes a main body, a plug connected to the main body, and a surrounding portion at least partially surrounding the plug. A test chamber is formed between the surrounding portion and the plug, with an open vent at the end of the test chamber away from the main body. The plug seals the opening of the product, and the surrounding portion supports the outer surface of the product. An air passage is provided inside the airtightness testing mechanism, and the test chamber communicates with the outside of the mechanism through the air passage. When performing an airtightness test on a product, the plug seals the opening of the product, and the surrounding portion supports the outer surface of the product. Then, the test chamber is evacuated or inflated to test whether the tested part of the product leaks. Compared with the prior art, the airtightness testing mechanism of this invention does not require separate plugs and seals, resulting in a simpler and more compact structure and reduced manufacturing costs.

The application provides an energy-saving speed-regulating blade adjusting device of an industrial fan, which comprises a fan shell and a speed-regulating blade module. A fan main shaft is arranged at the central position inside the fan shell. The speed-regulating blade module comprises a hub base fixedly installed at the end of the fan main shaft. A plurality of groups of blade mounting seats are embedded in the inner circumferential direction of the hub base. An adjusting blade is rotatably assembled in each group of blade mounting seats through a rotating pin shaft. An annular gear ring is arranged coaxially with the fan main shaft in the hub base. A driving gear is meshingly matched with the inner side of the annular gear ring. A speed-regulating driving motor is connected to the input end of the driving gear. A locking assembly is further arranged on the outer side wall of the hub base. The application has the following beneficial effects: the full-internal structure is adopted, the internal space of the fan is fully utilized, the overall size of the fan is not changed, the universality is high, the air volume and air pressure are accurately controlled by adjusting the blade inclination angle, the fan is efficiently operated, the useless power consumption is reduced, the energy-saving effect is remarkable, the supporting limiting and locking structure is stable and reliable in operation.

This utility model discloses a motor with a universally adjustable shaft, belonging to the field of motor technology. It includes a motor body and a universal joint head, which consists of a universal ball cover, a limiting ring, a star-shaped body, and an output shaft. The front end of the drive shaft has a first connecting spline, and the rear end has a connecting through hole. The universal ball cover is fixed to the drive shaft by connecting bolts, and its internal spherical cavity has an outer raceway. The limiting ring has a limiting ball groove and nests universal adjusting balls. The star-shaped body has an inner raceway, which cooperates with the universal adjusting balls and the outer raceway to form a rolling channel. The output shaft is connected to the star-shaped body by a spline. Universal adjustment of the output shaft is achieved by the rolling of six universal adjusting balls within the inner and outer raceways, and the drum-shaped structure of the limiting ring prevents axial displacement. This utility model achieves universal adjustment of the output shaft and has the advantages of a simple and compact structure, stable and reliable transmission, easy disassembly and maintenance, and high transmission efficiency.

The utility model relates to vehicle assembly technical field discloses a kind of air inlet valve mounting bracket, including shroud part and connecting part;Shroud part includes the U-shaped extension piece extending from front end to rear end;The front end of U-shaped extension piece is hinged with protective plate;At least one side surface of U-shaped extension piece is provided with through-hole;The bottom surface rear end of U-shaped extension piece is provided with opening;One end of connecting part is installed in U-shaped extension piece by at least two mountings, and it is located above opening and below through-hole position, and the other end extends to rear end direction and exceeds shroud part. Overall structure is simple and compact, and the degree of integration is higher, simplifies assembly process, improves assembly efficiency, occupies area to adapt to the compact layout demand of vehicle, and less material and standard part is used, and it is light in weight, low in cost;Structural strength is big, and reliability is high, and it can be ensured to keep continuous installation stability.