44results about How to "Smooth overhaul" patented technology

The invention discloses a maintenance method for a frame roller of a roughing mill, which uses a roughing mill frame roller maintenance fixture which comprises a push-pull trolley, a roller replacing hook, a roller replacing rail mechanism, a transverse moving trolley, a lifting device and the like. The maintenance method includes: integrally demounting the frame roller before lifting, erecting arail of the roller replacing rail mechanism below a frame roller mounting position, pushing the transverse moving trolley right below the frame roller, descending the frame roller on the transverse moving trolley, pulling out the frame roller along the roller replacing rail mechanism to a position above the transverse moving trolley, and using the lifting device for lifting before rotating at a certain angle, so that the push-pull trolley can be pulled out of a roughing mill gateway for maintenance and replacement. Using the maintenance method can realize demounting and lifting of the roughing mill frame roller, enable the demounting and lifting process to be convenient and quick, increase maintenance speed and reduce labor intensity. Therefore, continuity, high efficiency, stability and smoothness of hot rolling production can be guaranteed, high efficiency, orderliness and high quality of maintenance can be guaranteed, and online maintenance time for the frame roller is shortened.

The invention relates to a novel car coupler tail frame conveyor for a wagon. The novel car coupler tail frame conveyor for the wagon comprises a motor reducing gear 1, a driving chain wheel 2, a driven chain wheel 3, a chain 4, a supporting chain row 5 and a frame 6, and is characterized in that the car coupler tail frame conveyor drives the driving chain wheel 2 to run through the motor reducing gear 1, so as to enable a car coupler tail frame to convey with the running of the supporting chain row 5. The novel car coupler tail frame conveyor provided by the invention has the advantages as follows: the conveying of the car coupler tail frame is enabled to achieve automatic flow line production.

The invention relates to a novel rail wagon coupler overhauling conveying line. The conveying line comprises a to-be-overhauled whole-set coupler storage rack 1, a coupler disassembling platform 2, a coupler knuckle lock conveying cart 3, a coupler knuckle conveying cart 4, a coupler pusher conveying cart 5, a coupler yoke overhauling conveying line 6, a coupler body overhauling conveying line 7, a coupler complete-set assembly test bed 8, an assembled complete-set coupler storage rack 9 and a crown block 10. The rail wagon coupler overhauling conveying line is characterized in that the coupler yoke overhauling conveying line 6 and the coupler body overhauling conveying line 7 respectively convey disassembled components of couplers to component conveying lines to be overhauled, and then the components are assembled in complete sets. The rail wagon coupler overhauling conveying line has the main advantages that automatic line production is formed for overhauling of the main components; and time for overhauling is shortened.

A combined low-voltage control switchgear belongs to the technical field of low-voltage control switchgear, and in particular relates to a combined low-voltage control switchgear. The invention provides a combined low-voltage control switch cabinet with safe use, convenient operation and convenient maintenance. The present invention adopts the following technical scheme. The present invention includes a cabinet body. The upper end of the cabinet body is the main busbar room, the front part of the cabinet body is the switch room, the side part of the cabinet body is the cable room, and the rear part of the cabinet body is the auxiliary busbar room. The vertical auxiliary busbars in the busbar room are connected to the horizontal main busbars in the main busbar room; the switch room includes multiple switch chambers arranged vertically, each switch chamber includes a fixed bracket box, and the front side of the fixed bracket box is a movable The fixed bracket box is fixed with a vertical busbar with a plug at the front end, the vertical busbar is connected to the auxiliary busbar, and the plug corresponding to the vertical busbar on the movable bracket box is provided with a plug chuck. The clip is connected to the input terminal of the circuit breaker through the inner drain bar.

The invention relates to a novel wagon hook body conveyor which comprises a motor reducer 1, a drive chain wheel 2, a driven chain wheel 3, a chain 4, a supporting chain row 5 and a machine frame 6. The novel wagon hook body conveyor is characterized in that the wagon hook body conveyor drives the drive chain wheel 2 to operate through the motor speed reducer 1, so that a wagon hook body is conveyed along with the operation of the supporting chain row 5. The novel wagon hook body conveyor mainly has the advantage of achieving automatic flow process of conveying the wagon hook body.

The invention provides a control device for an elevator informing an expert of the elevator and a user of the elevator after completion of automatic recovering work when diagnosis operation is automatically performed not depending on inspection by the expert of the elevator and it is recovered from operation-halt. The control device for the elevator according to the present invention is provided with a means for making the elevator to operation-halt when a magnitude of shaking of a predetermined value or more is sensed; and a means for automatically performing diagnosis operation when it becomes operation-halt and recovering it from operation-halt. Further, the device is provided with a means for informing existence of execution of inspection by the expert after the diagnosis operation.

The invention provides an equipment box cabinet component suitable for all-terrain overhaul for shared towers. The equipment box cabinet component comprises an equipment box cabinet, rails, an overhaul platform, a running platform and a line wall; the rails are connected between the tops of two adjacent towers, between the top of the tower and the running platform and between the top of the towerand the overhaul platform; the equipment box cabinet are arranged on the rails and can horizontally move among the towers along the rails or vertically move along the towers; the line wall is arrangedon the running platform, the line wall is inserted into the equipment box cabinet; and when the tower equipment is overhauled, the tower equipment can be repaired without applying for line power failure or climbing, thereby avoiding the impact of the overhaul process on the reliability of the power line and power loss, and the equipment box cabinet component is suitable for performing smooth overhaul on the equipment built on towers in dangerous areas such as steep slopes.

The invention discloses an air pressure monitoring module for a 104 distribution valve. The module comprises an air path plate installed between a main valve part and a middle body of the 104 distribution valve. A first main air hole, a second main air hole and a third main air hole formed in the main valve part are communicated with a first auxiliary air hole, a second auxiliary air hole and a third auxiliary air hole of the middle body through a first connecting hole, a second connecting hole and a third connecting hole formed in the air path plate respectively. A first detection channel communicated with the first connecting hole, a second detection channel communicated with the second connecting hole and a third detection channel communicated with the third connecting hole are arranged in the air path plate. The air pressure monitoring module for the 104 distribution valve is simple and compact in structure and can be additionally installed between the main valve part and the middle body of the 104 distribution valve directly to lead out an air path connecting a train pipe, a braking cylinder and an auxiliary air cylinder of a railway vehicle for air pressure detection; an original braking pipeline of the railway vehicle does not need to be refitted, so that the workload is small; the module can be additionally installed on the existing railway vehicle directly, so that compatibility is high; the number of connecting portions is small, so that sealing is convenient, and the hidden danger of leakage is small.

The invention discloses a rack roller overhauling fixture for a rough mill. The rack roller overhauling fixture comprises a trolley, a roller replacement hook, a roller replacement rail mechanism, a translational trolley, a lifting device and the like. When the fixture is used for overhauling, a rack roller is wholly disassembled and lifted; a rail of the roller replacement rail mechanism is erected below a rack roller mounting position; the translational trolley is pushed to a position right under the rack roller; the rack roller is lowered onto the translational trolley, is pulled out to a position above the translational trolley along the roller replacement rail mechanism, and then rotates a certain angle after being lifted by the lifting device; and the trolley can be pulled out of a mill house by a roller replacement trolley of the rough mill for overhauling and replacement. The rack roller of the rough mill can be disassembled and listed, and the disassembly and lifting processes are convenient and fast; and the rack roller is disassembled and conveyed to the outside for overhauling, so that overhauling speed is increased, and labor intensity is reduced. Therefore, by the fixture, the continuity, high efficiency, stability and direct motion of hot rolling production can be ensured; the high efficiency, sequence and high quality of the overhauling are ensured; and the online overhauling time of the rack roller is shortened.

The invention relates to a gas rice steaming oven. The defect that a heater of an existing rice steaming oven is inconvenient to overhaul is overcome. According to the gas rice steaming oven, an installation frame is arranged at the lower end of an oven body, a first heat insulation plate is arranged on the installation frame, a heater and an ignition device are fixed to the installation frame, a controller and a handle are fixed to the first heat insulation plate, the oven body is provided with a sliding rail, a sliding groove matched with the sliding rail is formed in the installation frame, the installation frame can be conveniently drawn out of the oven body when the heater is overhauled, and the heater is quite convenient to overhaul; the oven body is further provided with a supporting plate, the supporting plate is provided with a gas inlet hole and plays a role in supporting the installation frame after the installation frame is inserted into the oven body, the installation frame is firmly fixed, and the stability of the rice steaming oven is improved.

The invention discloses a classroom lighting intelligent control lighting system, which comprises an intelligent system control box body, an inspection port is opened on the top of the intelligent system control box body, and a sealed door is movably installed inside the inspection port, and the inspection port A circular placement groove is provided on the front side of the inner wall, an extruding device is fixedly installed inside the circular placement groove, and a circular groove is provided on the front side of the airtight door. In this invention, by setting the intelligent system control box body, inspection port, sealed door, circular placement groove, extrusion device, extrusion spring, moving block, connecting block, push-pull handle, pushing block, circular groove, fixing mechanism, The combination of pneumatic cylinder, piston, extrusion rod, circular stopper, fixed rod, limit groove, limit block, strip groove, hinged seat and lifting groove solves the troublesome process of existing maintenance, which is not conducive to For the problem of quick maintenance, the classroom lighting intelligently controls the lighting system, which has the advantage of quick maintenance.

A sliding type direct-current energy dissipation device unit fixing device comprises a main body; the main body is fixedly connected to an energy dissipation device frame; at least one set of sliding rail beams are fixed to the upper side of the main body; and a direct-current energy dissipation device unit is arranged above the sliding rail beams in a sliding mode so as to slide to a preset position above the sliding rail beams to be installed. A rear fixing plate is arranged at one end of each sliding rail beam, and the rear fixing plates are connected to the energy dissipation device frame, matched with the direct-current energy dissipation device unit and used for playing a role in guiding and positioning when the direct-current energy dissipation device unit is installed. According to the sliding type direct-current energy dissipation device unit fixing device, the purpose of flexible installation, overhaul and replacement of the direct-current energy dissipation device unit is achieved, the device is simple in structure, convenient to assemble, detachable, easy to operate and store, safe and reliable, and various operations such as installation, overhaul and replacement of the direct-current energy dissipation device unit can be completed rapidly, safely and stably.