40results about How to "Reduce the number of spare parts" patented technology

The invention discloses a crusher, which comprises a crusher drive and transmission device, wherein the crusher drive and transmission device comprises a driver, a first flat key, a second flat key, a hydraulic coupler, a hydraulic coupler protective cover, a first spline, a gear coupling and a gearbox, wherein the driver is connected with the hydraulic coupler through the first flat key; the hydraulic coupler is connected with the gearbox through a second flat key; the hydraulic coupler protective cover covers the hydraulic coupler and is connected with the gearbox and the driver respectively; the gear coupling is connected with the gearbox through the first spline; the gearbox is connected with a gearbox suspending bracket; and the gearbox comprises a cover plate on the top, a baffle plate on the bottom, a first oil release hole formed on the side wall of the gearbox, and a second oil release hole formed on the side wall of the gearbox of the crusher. The crusher is hardly deformed, high in safety and low in cost, spare parts of the gearbox are reduced, the using state of the crusher can be monitored in real time, and special casting equipment is not needed.

The invention discloses a synchronous assembly and disassembly device for rotating and static ring components of a stern shaft sealing device. The synchronous assembly and disassembly device comprisesa threaded bushing, a support, lug rings, a screw, a pin and a gasket, and peripheral equipment comprises a rotating ring component, a static ring component, an end cap and a main shaft, wherein thesupport is formed in the way that two semi-rings are gathered and then fixed to the main shaft; the threaded bushing is axially limited by the lug rings; the screw is in threaded match with the innerhole of the threaded bushing; the lug rings are in threaded connection with the screw and the rotating ring component; a spring is mounted between the static ring component and the end cap; the pins sequentially penetrate the static ring component and the end cap; a threaded hole matched with the screw is formed in the front end of the pin; together with the threaded bushing, the screw penetratesthe gasket and then is connected with the pin; the screw is rotated to adjust the pre-tightening force between the static ring component and the end cap; and after the static ring component and the rotating ring component are in contact, the screw, the threaded bushing and the gasket are detached to finish assembly. The problem that a conventional stern shaft sealing device is difficult to mount and dismount due to pre-positioning of an electric compensation function can be solved.

The invention discloses an implementing method of protecting an IEGT (injection enhanced gate transistor) based on a relay protection tripping signal, belonging to the field of control. The implementing method comprises the steps of: introducing a 'tripping' control signal of a breaker into logic trigger conditions of a blocking IEGT triggering pulse module to form a mode of new logic trigger conditions of the blocking IEGT triggering pulse module together with original logic trigger conditions, outputting a 'blocking IEGT triggering pulse' signal through the blocking IEGT triggering pulse module after a microcomputer protection device outputs the 'tripping' control signal, before the 'tripping' mechanical action of the breaker, shielding/blocking the triggering pulse of the IEGT in a frequency convertor so as to turn off the IEGT and avoid the impact on the IEGT caused by a di/dt current mutation value impact, and to protect the IEGT. The protection action mechanism of the implementing method is cleverly set and easily achieved, and according to the protection action mechanism, the needed time of an on-site repair process is shortened greatly, the production can be resumed quickly and the production/maintenance cost can be lowered. The implementing method can be widely applied to the control/protection field of the driving system of a rolling mill set.

The invention discloses a laser cutting machine which comprises a pedestal, a material feeding platform and a moving platform, wherein a workpiece to be machined is arranged on the material feeding platform; the bottom of the material feeding platform is connected with the moving platform through material feeding platform guide rails in a sliding manner; the moving platform is fixedly arranged on the pedestal; laser cutting systems are separately arranged on two sides of the pedestal; and the laser cutting systems comprise laser devices, X shafts, Y shafts and Z shafts. The laser cutting machine is simple in structural principle; the shortcomings of an original common single-laser-head machine tool are overcome; and a double-laser-head synchronous cutting system and a double-laser-head asynchronous cutting system are integrated. By the use of the characteristics of the laser cutting machine, the original procedures of overturning, clamping and the like are canceled; and meanwhile, by the use of novel material feeding and discharging driving supporting batten devices, a lifting table, a working table and a hydraulic device in the conventional machine are eliminated.

Disclosed are a descaling unit arrangement method for jet descaling and a jet descaling method for decaling unit arrangement. The descaling unit arrangement method for jet descaling includes: sequentially setting at least one first mix jet descaling unit for clearing the upper surface of a metal sheet, a first low-pressure flushing unit for flushing the upper surface of the metal sheet, a first turning roll for turning the metal sheet for the first time, at least one second mix jet descaling unit for clearing the lower surface of the metal sheet, a second low-pressure flushing unit for flushing the lower surface of the metal sheet, and a second turning roll for turning the metal sheet for the second time. The descaling unit arrangement method for jet descaling and the jet descaling method for decaling unit arrangement have the advantages that the upper and lower surfaces of the metal sheet can be descaled efficiently and continuously in a green manner, the metal sheet is kept stable constantly in the descaling process, vibration is low, and the requirement for tension level of a unit is low.

The invention discloses an universal gripper for a vehicle door. The universal gripper is characterized in that the universal gripper comprises a mechanical arm body, a first tail end execution unit,a second tail end execution unit and a third tail end execution unit are arranged on the mechanical arm body; the first tail end execution unit is fixedly connected with the mechanical arm body; the second tail end execution unit is connected with the mechanical arm body through a width and thickness double-freedom-degree moving device; and the third tail end execution unit is connected with the mechanical arm body through a width, thickness and height three-degree-of-freedom moving device. The universal gripper for the vehicle door has the advantages that the universal gripper is suitable forany three-hole positioning part, and is particularly suitable for vehicle body door parts, and the gripping point of the gripper adapts to the change of the position, the size and the plate thicknessof a positioning hole.

The invention relates to a combined connector accessory and application. The combined angle-adjustable connector accessory is divided into a first-stage assembly and a second-stage assembly. The first-stage assembly is of a tubular structure, one end of the first-stage assembly is connected with a corresponding connector through a thread, a 45-degree included angle is formed between the wire outlet direction of the tail end of the first-stage assembly and the center line of an original tube structure, and the first-stage assembly is connected with the second-stage assembly in a quick-release installation mode. One end of the second-stage assembly is of a pipe structure, the other end is of a single-arm structure, and a 45-degree included angle is formed between the wire outlet direction ofthe tail end of the single-arm structure and the center line of the original pipe structure. According to the combined type connector accessory assembly for multi-angle wire outlet installation of the wire harness of the connector and the using method, the installation angle of the wire harness can be changed on the same connector accessory by adjusting different installation angles between the connector accessory assemblies, and therefore the combined type connector accessory assembly can adapt to different design installation angles such as a straight type, a 45-degree angle and a 90-degreeangle.

The embodiment of the invention provides a controller board card for a reactor protection system of a nuclear power plant and a control method. The controller board card comprises a memory and a processor. The memory is used for storing application information including a unique address of a current controller board card, information of a controllable device of the current controller board card, and information of a function set for a port of the controllable device by the current controller board card. The processor is used for setting an address for the port of the controllable device according to the unique address of the current controller board card after the current controller board card is inserted into the controllable device and setting the function for the port of the controllable device based on the information of the function set for the port of the controllable device. Therefore, the types and the number of the controller board card as well as the spare part number of the controller board card can be reduced; and management and maintenance of the reactor protection system of the nuclear power plant can be simplified.

The invention discloses a rotary lifting device for repairing a coke oven door. The rotary lifting device comprises a main frame, a docking mechanism, a rotating mechanism, a lifting mechanism, a traveling mechanism and a control system, wherein the docking mechanism and the rotating mechanism are arranged on the main frame; the main frame is connected with the traveling mechanism by virtue of the lifting mechanism; the traveling mechanism can move along a ground guide rail; and the control system controls each mechanism to finish the actions such as docking and clamping, rotating, lifting, elevating and traveling of a traveling trolley on the coke oven door. Compared with the prior art, the rotary lifting device disclosed by the invention has the beneficial effects that 1) the device is suitable for two different bolt structures of a pressing mode and a rotating mode; 2) a main frame of a single-side frame structure is adopted, each part of the oven door is convenient to maintain, and the maintenance efficiency is high; 3) the operation is stable and reliable; 4) the lifting action is realized by virtue of retraction and rotation of a folding arm, and the operation is stable and reliable; 5) the left and right folding arms synchronously retract, so that the oven door is lifted to a proper height, and the working conditions are improved; and 6) a set of device can be shared on the machine and coke side, and the cost is saved.

The invention discloses a steel rail translation system and a steel rail translation method for the case of a small distance between a steel rail conveying line and the ground. The steel rail translation system comprises a master control module, a first conveying rail, a second conveying rail arranged in parallel to the first conveying rail, and a plurality of transverse travelling mechanisms arranged on the first conveying rail and the second conveying rail, wherein the master control module is used for synchronously controlling each transverse travelling mechanism; each transverse travellingmechanism comprises a sub-control unit, a bearing unit, a translation unit and a lifting unit; each sub-control unit is used for receiving the instruction of the master control module and controllingthe corresponding transverse travelling mechanism; each bearing unit is used for bearing steel rails; each translation unit is used for translating the steel rails on the corresponding bearing unit towards the directions of the first conveying rail and the second conveying rail separately; and each lifting unit is used for placing the steel rails translated by the corresponding translation unit onto the first conveying rail and the second conveying rail separately. The steel rail translation system and the steel rail translation method are applicable to the case of a small distance of not greater than 1000mm between the steel rail conveying line on a welded rail site and a ground elevation.

The invention discloses a hydraulic turbine set vibration detection system and method, on one hand, the hydraulic turbine set vibration detection system comprises a power supply module, a clock module, a communication module and a plurality of data acquisition channels, wherein the data acquisition channels are used for acquiring data obtained by corresponding probes; an acquisition control module used for controlling the data acquisition channels and sorting the acquired data; a central processing module used for processing the arranged data; a data storage module used for storing the data processed by the central processing module. The vibration monitoring system provided by the invention is used for carrying out real-time vibration detection on the hydraulic turbine set, and plays an important role in improving the utilization rate of hydraulic turbine set equipment, carrying out equipment maintenance in a planned manner, improving the water energy utilization rate and the like. After the detection system is used, the normal operation time of the hydraulic turbine set can be prolonged, the equipment operation condition is optimized, and the operation safety of the hydroelectric generating set is improved.

The invention relates to a replaceable type hot-rolled caterpillar band steel outlet guide device. The replaceable type hot-rolled caterpillar band steel outlet guide device comprises a plurality of guide heads (1), a bottom plate (2), a first side plate (5), a second side plate (6) and a plurality of fixing blocks (4), wherein a groove is formed in one end of the bottom plate (2); the end parts of two side walls of the groove are of forklift bucket tooth shaped structures; a plurality of U-shaped grooves (3) are formed in positions, along the opposite ends of the bottom plate, of the bottom of the groove; guide heads are correspondingly inserted into the U-shaped grooves (3); the first side plate (5) and the second side plate (6) are correspondingly and oppositely arranged at the two sides of the bottom plate (2); one end part of the first side plate (5) and one end part of the second side plate (6) are of arc-shaped forklift bucket tooth shaped structures; the end parts of two side walls on the groove in one end of the bottom plate, and the guide heads are on the same plane; and the guide heads (1) are fixed through the fixing blocks (4).

The invention provides a mine detachable mobile power supply center comprising a power supply center body, a feed-out module and a mobile base. The power supply center body and the feed-out module areinstalled on the mobile base. The power supply center body and the feed-out module are connected through a plug-in static contact a plug-in moving contact. The plug-in static contact is installed onthe power supply center body, and the plug-in moving contact is installed on the feed-out module. The mine detachable mobile power supply center can continuously move forward with the advancement of the underground mining working face without repeatedly moving or building a new mining area substation so as to save a lot of manpower, material resources and time cost.

The invention discloses a modular detachable jacket. The modular detachable jacket is composed of a heat conduction piece and a heat tracing piece, the heat tracing piece is embedded into the heat conduction piece, the heat conduction piece is of an attached covering structure, the inner surface of the heat conduction piece is almost completely matched with the outline shape of a heat-traced piece, a main body of the heat-traced piece is wrapped in the heat conduction piece, and a soft heat conduction material is arranged at the joint of the heat conduction piece and the heat-traced piece in afilled mode. The modular detachable jacket wraps the heat-traced piece like an outer sleeve, a gap between the heat conduction piece and the heat-traced piece is further reduced through the soft heatconduction material, the contact area is large, the heat transfer efficiency is high, heat tracing is uniform, and no dead zone exists.