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37results about How to "Play the role of anti-slope" patented technology
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Rope guide device with adjustable rope guide device and pressing wheel type rope pressing device
InactiveCN107601333ANovel structureStrong resistance to cable pullWinding mechanismsSprocketEngineering
The invention discloses a rope guide device with an adjustable rope guide device and a pressing wheel type rope pressing device. The rope guide device comprises the rope pressing device and a thread guide mechanism; the rope pressing device is connected to the thread guide mechanism through a pin shaft, the rope pressing device is connected with the thread guide mechanism through a spring, a pressing wheel is pressed on a steel wire rope on the last circle of a winding drum, the thread guide mechanism is provided with an adjustable rope guide device, the thread guide mechanism is connected tothe front face of the rope outlet position of the winding drum, a small chain wheel is connected to one end of a thread shaft of the thread guide mechanism, and is connected with a large chain wheel through a chain, the large chain wheel is connected to a joint shaft, the joint shaft is connected to one end of a winding cylinder shaft of an electric hoist through a screw, a tensioning device is connected to the chain, and a chain breaking or falling circuit breaking switch is arranged on the tensioning device.
Owner:乐弍妹
Hoist rope guide device with pressing wheel type rope pressing device
The invention discloses a hoist rope guide device with a pressing wheel type rope pressing device. The hoist rope guide device comprises the pressing wheel type rope pressing device and a thread guidemechanism; the pressing wheel type rope pressing device is connected to the thread guide mechanism through a pin shaft, the pressing wheel type rope pressing device is connected with the thread guidemechanism through a spring, a pressing wheel is pressed on a steel wire rope on the last circle of a winding drum, the two ends of the thread guide mechanism are connected to the front face of the rope outlet position of the winding drum through bolts, one end of a thread shaft on the thread guide mechanism is connected with a small chain wheel, the small chain wheel is connected with a large chain wheel through a chain, the large chain wheel is connected to one end of a winding drum shaft of the electric hoist, a tensioning device is connected to the chain, and a chain breaking or falling circuit breaking switch is arranged on the tensioning device.
Owner:乐弍妹
Rope guide with rope pressing device and threaded guide mechanism
InactiveCN107539898AMove the same distanceNo horizontal scrollingWinding mechanismsGear wheelEngineering
Owner:乐弍妹
Coiled tubing tractor and working method thereof
The invention provides a coiled tubing tractor and a working method thereof. The coiled tubing tractor is connected between an underground power drilling tool and a coiled tubing, and is characterizedby comprising a shell, a rotor and a steering system, the rotor and the steering system are arranged in the shell, and the rotor can rotate at a high speed under the impact action of high-pressure drilling fluid to generate power; and the steering system comprises a main steering shaft 14, an auxiliary steering shaft 16 and a crawling wheel 13 and is used for changing the output direction of power so as to drive the coiled tubing to advance in a horizontal well. Cable power supply is not needed, the possibility of underground accidents is reduced, and hydraulic driving is adopted, so that energy can be effectively saved; when the coiled tubing works, the tubing does not rotate, so that the wheel type tractor with larger traction force is adopted in the coiled tubing work; and when the coiled tubing is used for horizontal well drilling operation, the coiled tubing tractor can also play a role of a centralizer, and the coiled tubing can be effectively centered, so that abrasion is reduced.
Owner:YANGTZE UNIVERSITY
Rope guider with rope pressing device and guide rod type adjustable rope guide mechanism
InactiveCN107539907AMove the same distanceNo horizontal scrollingWinding mechanismsGear wheelEngineering
Owner:乐弍妹
Rope guide with sleeve pipe type rope-pressing machine and guide rod type adjustable rope-guiding device
The application discloses a rope guide with a casing type rope pressing device and a guide rod type adjustable rope guiding device, including a casing type rope pressing device and a guide rod type thread guiding mechanism; the casing type rope pressing device The fixed seat in the device is connected to the front of the reel by bolts, and the casing on the sleeve type rope pressing device is pressed on the wire rope on the reel; the guide rod type thread guide mechanism is connected to the front of the reel by bolts and is in the Below the casing type rope pressing device; the guide rod type thread guide mechanism has an adjustable guide rope device; one end of the threaded shaft on the guide rod type thread guide mechanism is connected to a small sprocket; the small sprocket The large sprocket is connected by a chain; the large sprocket is connected to one end of the reel shaft of the electric hoist; a safety cover is installed outside the small sprocket, the large sprocket and the chain.
Owner:乐弍妹
Rope guide with pressing wheel type rope pressing device and guiding rod type adjustable rope guiding device
The application discloses a rope guide with a pressure wheel type rope pressure device and a guide rod type adjustable rope guide device, including a rope pressure device and a guide rod type thread guide mechanism; the fixed seat in the rope pressure device passes through Bolts are connected to the front of the reel, and the pressure wheel in the rope pressing device is pressed on the steel wire rope of the last circle of the reel; the guide rod type thread guide mechanism is connected to the front of the reel and is located Below; the guide rod type thread guide mechanism has an adjustable guide rope device; one end of the thread shaft on the guide rod type thread guide mechanism is connected to the small sprocket; the small sprocket is connected to the large sprocket through a chain The large sprocket is connected to one end of the reel shaft of the electric hoist; a safety cover is installed outside the small sprocket, the large sprocket and the chain.
Owner:乐弍妹
Rope guider with pressing wheel type rope presser and adjustable rope guiding device
InactiveCN107539899ANovel structureStrong resistance to cable pullWinding mechanismsSprocketEngineering
The application discloses a rope guide with a pressure wheel type rope press and an adjustable rope guide device, comprising a rope press device and a thread guide mechanism; the rope press device is connected to the thread guide mechanism through a pin shaft On the upper side, the rope pressing device is connected with the thread guiding mechanism through a spring, so that the pressing wheel is pressed on the wire rope of the last circle on the reel; the thread guiding mechanism is provided with an adjustable rope guiding device; the thread The guide mechanism is connected to the front of the rope outlet of the reel; one end of the threaded shaft on the threaded guide mechanism is connected to the small sprocket; the small sprocket is connected to the large sprocket through a chain; the large sprocket is connected to the electric hoist One end of the reel shaft; a safety cover is installed outside the small sprocket, the large sprocket and the chain.
Owner:乐弍妹
Rope guide with guide rod type adjustable rope-guiding device and press wheel type rope-pressing device
InactiveCN107601327AMove the same distancePlay the role of anti-slopeWinding mechanismsSprocketEngineering
The invention discloses a rope guide with a guide rod type adjustable rope guiding device and a press wheel type rope-pressing device. The rope guide comprises the rope-pressing device and a guide rodtype thread guide mechanism. A fixed seat in the rope-pressing device is connected in front of a winding drum through bolts, and a press wheel in the rope-pressing device presses the last circle of asteel wire rope on the winding drum. The guide rod type thread guide mechanism is connected in front of the winding drum and located below the rope-pressing device. The guide rod type thread guide mechanism is provided with the adjustable rope-guiding device. One end of a thread shaft on the guide rod type thread guide mechanism is connected with a small chain wheel, and the small chain wheel isconnected with a large chain wheel through a chain. The large chain wheel is connected to a connector shaft. The connector shaft is connected to one end of a winding drum shaft of an electric hoist through a screw. A tensioning device is connected to the chain and provided with a chain-breaking or off-chain cut-out switch.
Owner:乐弍妹
Rope guider with casing pipe type rope presser and guiding rod type thread rope guiding device
The application discloses a rope guide with a casing type rope pressing device and a guide rod type threaded rope guiding device, including a casing type rope pressing device and a guide rod type thread guiding mechanism; the casing type rope pressing device The fixed seat in the reel is connected to the front of the reel by bolts, and the sleeve on the sleeve type rope pressing device is pressed on the wire rope on the reel; the guide rod type thread guide mechanism is connected to the front of the reel by bolts. And it is directly below the sleeve type rope pressing device; one end of the threaded shaft on the guide rod type thread guide mechanism is connected to the pinion; the pinion is engaged with the bull gear; the bull gear is connected through a flat key Connected to the joint shaft; the joint shaft is connected to one end of the reel shaft of the electric hoist with screws, and the two are connected by a coaxial line.
Owner:乐弍妹
Rope guide with sleeve type rope pressing device and guiding rod type adjustable rope guiding mechanism
The application discloses a rope guide with a sleeve type rope pressing device and a guide rod type adjustable rope guide mechanism, including a sleeve type rope pressing device and a guide rod type thread guide mechanism; the sleeve type rope pressing device The fixed seat in the device is connected to the front of the reel by bolts, and the casing on the sleeve type rope pressing device is pressed on the wire rope on the reel; the guide rod type thread guide mechanism is connected to the front of the reel by bolts and is in the Below the casing type rope pressing device; the guide rod type thread guide mechanism has an adjustable guide rope device; one end of the threaded shaft on the guide rod type thread guide mechanism is connected to the pinion; the pinion gear and the large The gears are engaged and connected; the large gear is connected to one end of the reel shaft of the electric hoist; a safety cover is installed outside the small gear and the large gear, and the safety cover is connected to the shell at the end of the electric hoist.
Owner:乐弍妹
Hoist rope guide provided with clamp type rope pressing machine
This application discloses a gourd rope guide with a hoop type rope presser, which includes a rope presser and a thread guide mechanism; The said rope pressing device is connected to the reel in the form of a clamp, and can move left and right along the outer thread rope groove of the reel; the two ends of the thread guide mechanism are respectively connected with the left end seat and the right end of the electric hoist by bolts. Seat connection; one end of the threaded shaft on the thread guide mechanism is connected to the pinion; the pinion is meshed with the bull gear; the bull gear is connected to the joint shaft through a flat key; the joint shaft is connected to the electric One end of the reel shaft of the gourd, and the two are connected by a coaxial line.
Owner:乐弍妹
Hoist rope guide provided with telescoping rope pressing device
The invention discloses a hoist rope guide provided with a telescoping rope pressing device. The hoist rope guide comprises the telescoping rope pressing device and a threaded guide mechanism; the telescoping rope pressing device is connected with the threaded guide mechanism through pin shafts, and then is connected with the threaded guide mechanism through springs; a telescopic pipe on the telescoping rope pressing device press on a steel wire rope on a reel; the two ends of the threaded guide mechanism are fixed in front of the rope discharge part of the reel through bolts correspondingly;one end of a threaded shaft of the threaded guide mechanism is connected with a small chain wheel; the small chain wheel is connected with a large chain wheel through a chain; the large chain wheel isconnected with one end of a reel shaft of an electric hoist; the chain is connected with a tensioning device; and a shutdown switch for chain brakeage or chain disengagement is arranged on the tensioning device.
Owner:乐弍妹
Rope guide provided with rope pressing device
InactiveCN107539911AMove the same distancePlay the role of anti-slopePortable liftingWinding mechanismsSprocketEngineering
Owner:乐弍妹
Rope guide with hoop-type rope pressing device and guiding-rod type adjustable rope guiding mechanism
The present application discloses a rope guide with a hoop type rope pressing device and a guide rod type adjustable rope guiding mechanism, including a rope pressing device and a guide rod type thread guiding mechanism; the rope pressing device is a hoop type, The rope-pressing device is provided with a guide rope opening, and the rope-pressing device is hooped on the outer diameter of the reel, and can move left and right along the outer thread rope groove of the reel; the guide rod type thread guiding mechanism is connected to the reel The front of the barrel where the rope comes out; the guide rod type thread guide mechanism has an adjustable guide rope device; one end of the thread shaft on the guide rod type thread guide mechanism is connected to the pinion; the pinion gear is meshed with the large gear; the large gear It is connected to one end of the reel shaft of the electric hoist; a safety cover is installed outside the pinion and the bull gear, and the safety cover is connected to the shell at the end of the electric hoist.
Owner:乐弍妹
Rope guide device with adjustable rope guide device and casing pipe type rope pressing device
The invention discloses a rope guide device with an adjustable rope guide device and a casing pipe type rope pressing device. The rope guide device comprises the casing pipe type rope pressing deviceand a thread guide mechanism; the casing pipe type rope pressing device is connected to the thread guide mechanism through a pin shaft, the casing pipe type rope pressing device is connected with thethread guide mechanism through a spring, a casing pipe on the casing pipe type rope pressing device is pressed on a steel wire rope on a winding drum, the thread guide mechanism is provided with the adjustable rope guide device, the two ends of the thread guide mechanism are connected to the front face of the rope outlet position of the winding drum through bolts, one end of a thread shaft on thethread guide mechanism is connected with a small chain wheel, the small chain wheel is connected with a large chain wheel through a chain, the large chain wheel is connected to a joint shaft, the joint shaft is connected to one end of a winding drum shaft of an electric hoist through a screw, a tensioning device is connected to the chain, and a chain breaking or falling circuit breaking switch isarranged on the tensioning device.
Owner:乐弍妹
Rope guider with casing pipe type rope pressing device and guide rod type thread guide mechanism
The application discloses a rope guide with a casing type rope pressing device and a guide rod type thread guiding mechanism, including a casing type rope pressing device and a guide rod type thread guiding mechanism; in the casing type rope pressing device The fixed seat of the fixed seat is connected to the front of the reel by bolts, and the sleeve on the sleeve type rope pressing device is pressed on the wire rope on the reel; the guide rod type thread guide mechanism is connected to the front of the reel by bolts and It is directly below the casing type rope pressing device; one end of the threaded shaft on the guide rod type threaded guide mechanism is connected to the small sprocket; the small sprocket is connected to the large sprocket through a chain; the large chain The wheel is connected to one end of the reel shaft of the electric hoist; a safety cover is installed outside the small sprocket and the large sprocket, and the safety cover is connected to the shell at the end of the electric hoist.
Owner:乐弍妹
Rope guide device with casing pipe type rope-pressing device and thread guide mechanism
InactiveCN107539910ANovel structureStrong resistance to cable pullWinding mechanismsEngineeringScrew thread
The present application discloses a rope guide with a casing type rope pressing device and a thread guide mechanism, including a casing type rope pressing device and a thread guiding mechanism; the casing type rope pressing device is connected to the On the thread guide mechanism, the sleeve type rope pressing device is connected with the thread guide mechanism through a spring; the sleeve on the sleeve type rope pressing device is pressed on the steel wire rope on the reel; The thread guide mechanism is provided with an adjustable guide rope device; the two ends of the thread guide mechanism are respectively connected to the front of the rope outlet of the reel by bolts; one end of the thread shaft on the thread guide mechanism is connected to a pinion; the small The gear is meshed with the large gear; the large gear is connected to one end of the reel shaft of the electric hoist; a safety cover is installed outside the small gear and the large gear, and the safety cover is connected to the shell at the end of the electric hoist.
Owner:乐弍妹
Rope guider with clamp type rope pressing device
The application discloses a rope guide with a hoop type rope pressing device, which includes a rope pressing device and a thread guide mechanism; the rope pressing device is a hoop type, and a rope guide opening is provided on the rope pressing device , the rope pressing device is connected to the reel in the form of a clamp, and can move left and right along the outer thread rope groove of the reel; the two ends of the thread guide mechanism are respectively connected with the left end seat and the right end seat of the electric hoist by bolts connection; one end of the threaded shaft on the thread guide mechanism is connected to the small sprocket; the small sprocket is connected to the large sprocket through a chain; the large sprocket is connected to one end of the reel shaft of the electric hoist; the small chain A safety cover is installed outside the wheel and the large sprocket, and the safety cover is connected to the shell at the end of the electric hoist.
Owner:乐弍妹
Hoist rope guider with clamp type rope pressing device
The invention discloses a hoist rope guider with a clamp type rope pressing device. The hoist rope guider comprises the rope pressing device and a guide rod type thread guiding mechanism. The rope pressing device is in a clamp type. The rope pressing device is provided with a rope guiding port. The rope pressing device is connected to a coiling block and can move left and right along a coiling block outer thread rope groove. The guide rod type thread guiding mechanism is connected to the front of the rope discharging position of an electric hoist through a bolt. One end of a thread shaft on the guide rod type thread guiding mechanism is connected with a small chain wheel, and the small chain wheel is connected with a big chain wheel through a chain. The big chain wheel is connected to oneend of a coiling block shaft of the electric hoist. The chain is connected with a tensioning device. The tensioning device is provided with a chain breaking or chain disengaging cut-out switch.
Owner:乐弍妹
Rope guide with pressing wheel type rope-pressing device and guide rod type thread rope-guiding device
InactiveCN107539915ANovel structureStrong resistance to cable pullWinding mechanismsEngineeringWire rope
This application discloses a rope guide with a pressure wheel type rope pressure device and a guide rod type threaded rope guide device, including a pressure wheel type rope pressure device and a guide rod type thread guide mechanism; the pressure wheel type rope pressure device The fixed seat in the drum is connected to the front of the reel by bolts, and the pressure roller in the pressure roller type rope pressing device is pressed on the steel wire rope of the last circle of the reel; the guide rod type thread guide mechanism is connected to the reel by bolts. The front is directly below the rope pressing device; one end of the threaded shaft on the guide rod type threaded guide mechanism is connected to the pinion; the pinion is meshed with the bull gear; the bull gear is connected to the pinion through a flat key On the joint shaft; the joint shaft is connected to one end of the reel shaft of the electric hoist with screws, and the two are connected by a coaxial line.
Owner:乐弍妹
Rope guiding machine with guide rod type adjustable rope guiding device and clamp type rope pressing device
InactiveCN107601329ANovel structureStrong resistance to cable pullWinding mechanismsEngineeringMechanical engineering
The invention discloses a rope guiding machine with a guide rod type adjustable rope guiding device and a clamp type rope pressing device. The rope guiding machine includes a rope pressing unit, and aguiding rod type thread guiding mechanism. The rope pressing unit is of a clamping type and a rope guiding hole is formed in the rope pressing unit. The rope pressing unit is clamped on the outside diameter of a coiling block in a sleeving mode and can move left and right along an outer thread rope groove of the coiling block. The guiding rod type thread guiding mechanism is connected with the front of a coiling block rope outlet position. The guiding rod type thread guiding mechanism is provided with the adjustable rope guiding device. One end of a thread shaft of the guiding rod type threadguiding mechanism is connected with a small chain wheel. The small chain wheel is connected with a big chain wheel through a chain. The big chain wheel is connected with a joint shaft. The joint shaft is connected with one end of a coiling block shaft of an electric hoist through a screw. A tensioning gear is connected with the chain. A cut-out switch of chain cutting or chain dropping is installed on the tensioning gear.
Owner:乐弍妹
Multi-effect lifting pressurizing device for drilling tool
InactiveCN104533314AExtended service lifeAvoid breakingDrilling rodsConstructionsPressure differenceMulti effect
The invention provides a multi-effect lifting pressurizing device for a drilling tool, and relates to a drilling assisting device. The multi-effect lifting pressurizing device for the drilling tool comprises a cylinder sleeve and a hydraulic conversion device; the cylinder sleeve is a hollow cylinder body of which two ends are opened; the hydraulic conversion device comprises a telescopic joint, a telescopic rod, a lower joint and a sealing ring I; the telescopic joint is fixed to the top part of the telescopic rod; the lower joint is fixed to the bottom part of the cylinder sleeve; the telescopic rod passes through the lower joint, and the tail part of the telescopic rod is inserted into a cavity in the cylinder sleeve; the sealing ring I is arranged at the tail part of the telescopic rod and is in contact with the inner wall of the cylinder sleeve. According to the multi-effect lifting pressurizing device for the drilling tool, the pressure difference is generated by reducing, then the pressure is transmitted to a drill bit through the telescopic rod and a telescopic rod, the uniformly-downwards power is continuously applied to the drill bit, and the rigid pressure of a drill collar to the drill bit is converted into hydraulic pressure; therefore, the drill bit can be protected well by the uniform pressurizing, and as a result, the purposes of high speed and low cost can be achieved.
Owner:刘岩
Rope guide with clamp type rope pressing device and adjustable rope guiding mechanism
InactiveCN107539895ANo horizontal scrollingPlay the role of anti-slopeWinding mechanismsEngineeringPinion
This application discloses a rope guide with a hoop-type rope pressing device and an adjustable rope guiding mechanism, including a rope pressing device and a thread guide mechanism; the rope pressing device is a hoop type, and the rope pressing device There is a guide rope opening on the top, the rope pressing device is connected to the outer diameter of the reel, and can move left and right along the external thread rope groove of the reel; the thread guide mechanism is connected to the front of the reel; the thread The guide mechanism has an adjustable guide rope device; one end of the threaded shaft on the thread guide mechanism is connected to the pinion; the pinion is meshed with the large gear; the large gear is connected to one end of the reel shaft of the electric hoist; A safety cover is installed outside the pinion and the bull gear, and the safety cover is connected to the shell at the end of the electric hoist.
Owner:乐弍妹
Rope guiding machine with sleeve type rope pressing machine and adjustable rope guiding device
The present application discloses a rope guide with a casing type rope pressing device and an adjustable rope guiding device, including a casing type rope pressing device and a thread guide mechanism; the casing type rope pressing device is connected to the On the thread guide mechanism, the sleeve-type rope pressing device is connected to the thread guide mechanism through a spring; the sleeve on the sleeve-type rope pressing device is pressed on the steel wire rope on the reel; The thread guide mechanism is provided with an adjustable guide rope device; the two ends of the thread guide mechanism are respectively connected to the front of the reel rope outlet by bolts; one end of the thread shaft on the thread guide mechanism is connected to a small sprocket; The small sprocket is connected to the large sprocket through a chain; the large sprocket is connected to one end of the reel shaft of the electric hoist; a safety cover is installed outside the small sprocket, the large sprocket and the chain.
Owner:乐弍妹
Rope guide device with adjustable rope guide device and clamp type rope pressing device
The invention discloses a rope guide device with an adjustable rope guide device and a clamp type rope pressing device. The rope guide device comprises the rope pressing device and a thread guide mechanism; the rope pressing device is in a clamp type, a rope guide opening is formed in the rope pressing device, the rope pressing device is connected to the outer diameter of a winding drum, and can move left and right along a winding drum external thread rope groove; the thread guide mechanism is connected to the front face of the winding drum and is provided with the adjustable rope guide device; a small chain wheel is connected to one end of a thread shaft on the thread guide mechanism and is connected with a large chain wheel through a chain, the large chain wheel is connected to a joint shaft, the joint shaft is connected to one end of a winding drum shaft of an electric hoist through a screw, a tensioning device is connected to the chain, and a chain breaking or falling circuit breaking switch is arranged on the tensioning device.
Owner:乐弍妹
Rope guide with clamp type rope pressing device and adjustable rope guiding device
This application discloses a rope guide with a hoop type rope presser and an adjustable rope guide device, including a rope presser and a thread guide mechanism; the rope presser is of the clamp type, and the rope presser is There is a guide rope opening on the top, the rope pressing device is connected to the outer diameter of the reel, and can move left and right along the external thread rope groove of the reel; the thread guide mechanism is connected to the front of the reel; the thread The guide mechanism has an adjustable guide rope device; one end of the threaded shaft on the thread guide mechanism is connected to the small sprocket; the small sprocket is connected to the large sprocket through a chain; the large sprocket is connected to the coil of the electric hoist One end of the barrel shaft; a safety cover is installed outside the small sprocket, the large sprocket and the chain.
Owner:乐弍妹
Rope guider with rope pressing device and guide rod type thread guide mechanism
InactiveCN107539909AMove the same distanceNo horizontal scrollingWinding mechanismsEngineeringSprocket
This application discloses a rope guide with a rope pressing device and a guide rod type thread guiding mechanism, including a pressing wheel type rope pressing device and a guide rod type thread guiding mechanism; the fixing seat in the pressing wheel type rope pressing device It is connected to the front of the reel by bolts, and the pressure roller in the pressure roller type rope pressing device is pressed on the steel wire rope of the last circle of the reel; the guide rod type thread guide mechanism is connected to the front of the reel by bolts and is located directly below the rope pressing device; one end of the threaded shaft on the guide rod type threaded guide mechanism is connected to the small sprocket; the small sprocket is connected to the large sprocket through a chain; the large sprocket is connected to the electric hoist One end of the reel shaft; a safety cover is installed outside the small sprocket and the large sprocket, and the safety cover is connected to the shell at the end of the electric hoist.
Owner:乐弍妹
Hoist rope guiding device with sleeve-type rope pressing device
The present application discloses a gourd rope guide with a casing type rope pressing device, which includes a casing type rope pressing device and a threaded guiding mechanism; the casing type rope pressing device is connected to the threaded guiding mechanism through a pin shaft, The sleeve-type rope pressing device is connected to the thread guide mechanism through a spring; the sleeve on the sleeve-type rope pressing device is pressed on the steel wire rope on the reel; the two ends of the thread guide mechanism are respectively It is connected to the front of the rope outlet of the electric hoist by bolts; one end of the threaded shaft on the threaded guide mechanism is connected to the pinion; the pinion is meshed with the large gear; the large gear is connected to the joint shaft through a flat key; The joint shaft is connected to one end of the reel shaft of the electric hoist with a screw, and the two are connected by a coaxial line.
Owner:乐弍妹
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