20results about "Metal chainmaking tools" patented technology

The utility model discloses a chain dismounting device which comprises a flexible clamping mechanism and a dismounting mechanism. The flexible clamping mechanism comprises a left flexible clamping assembly and a right flexible clamping assembly, each flexible clamping assembly comprises a clamping seat and a plurality of clamping rods elastically arranged on the inner side of the clamping seat, the chains are elastically clamped through the clamping rods on the inner sides of the two flexible clamping assemblies, and the two clamping seats are driven by the driving assembly to get close to each other or get away from each other. The dismounting mechanism comprises a dismounting supporting plate, the middle section of the dismounting supporting plate is in threaded connection with a vertically-extending ejection screw, the bottom of the ejection screw downwards extends out of the lower portion of the dismounting supporting plate, the ejection screw is rotated downwards, and a chain pin of the chain is downwards ejected out through the bottom end of the ejection screw. Compared with the prior art, the chain dismounting device has the following advantages that accurate positioning and clamping and efficient and lossless dismounting of various chains with different sizes can be achieved, the dismounting work efficiency is improved, and potential safety hazards are eliminated.

An automatic assembling machine for a pintle chain comprises the pintle chain and a machine frame, the pintle chain comprises more than two pintle chain pieces, the pintle chain pieces are connected through pin shafts, each pintle chain piece comprises two parallel first outer chain pieces with a first interval, one ends of the two first outer chain pieces are connected through a connecting piece, and the other ends of the two first outer chain pieces are connected through a pin shaft. The other ends of the two first outer chain pieces are connected with two parallel second outer chain pieces with a second interval through inclined faces, and the second interval is larger than the first interval. The machine frame is provided with an automatic pintle chain piece feeding device, an automatic pintle chain piece positioning device, an automatic pin shaft feeding device, an upper pin shaft riveting head device, a lower pin shaft riveting head device and a pintle chain driving device. The automatic assembling performance of the pintle chain is achieved through the pintle chain piece automatic feeding device, the pintle chain piece automatic positioning device, the pin shaft automatic feeding device, the pin shaft upper riveting head device, the pin shaft lower riveting head device and the pintle chain driving device.

The utility model relates to the technical field of loop chain hydraulic shear equipment, and discloses a loop chain hydraulic shear which comprises a hydraulic cylinder body, a knife rest is fixedly connected to the outer wall of the hydraulic cylinder body, a movable knife is installed in the hydraulic cylinder body, and a fixed knife matched with the movable knife is fixedly connected to the outer wall of the knife rest. Round shafts are fixedly connected to the outer walls of the two sides of the tool rest, the tool rest is movably connected with an overturning frame through the round shafts, sliding grooves are formed in the outer walls of the two sides of the overturning frame, sliding blocks are slidably connected to the outer walls of the sliding grooves, movable tightening hooks are fixedly connected to the outer walls of the bottoms of the sliding blocks, and the two movable tightening hooks are symmetrically distributed on the two sides of the movable cutter and the two sides of the fixed cutter. According to the utility model, the swing of the loop chain during shearing can be effectively avoided, the shearing efficiency and precision are improved, and meanwhile, due to the protection effect of the protective cover, the operation risk is greatly reduced, and the requirements of the shearing work of the loop chain of the underground coal mine scraper conveyor on the safety and reliability of equipment are met.

The invention relates to the technical field of chain machining, and discloses a multi-specification handheld chain joint disassembling device which comprises an assembling table, a joint disassembling mechanism and a positioning mechanism, a semi-open assembling cavity of the assembling table is used for laterally placing a chain, and a multi-specification ejector pin of the joint disassembling mechanism is switched through an adjusting disc and is driven by an electric cylinder to press downwards; a side supporting assembly and a side pushing assembly of the positioning mechanism clamp the rollers through rolling wheels and ejector balls, the distance between the rolling wheels is controlled through an adjusting screw rod, and pin shafts of the rollers with different diameters are made to be aligned with ejector pins all the time. And the pin shaft falls into the blanking cavity through the nail removing groove of the base, so that quick, accurate and safe joint disassembly of the chain with multiple specifications is realized. The invention solves the problems of difficulty in controlling manual impact, easiness in causing deformation of a chain plate, breakage of a pin shaft, injury to hands due to non-uniform tightness of a riveting head, potential safety hazards, low efficiency and poor quality in the process of disassembling and riveting the chain package product.

The utility model relates to a transmission chain link disassembling tool which comprises a fixing frame and a sliding groove, a transverse rod is arranged in the sliding groove, two sliding blocks are arranged in the sliding groove and distributed in the length direction of the transverse rod, a driving mechanism is arranged at the bottom of the fixing frame, the top of each sliding block is fixedly connected with a movable rod, and a spring rod is fixedly connected to the inner side wall of each movable rod. A limiting groove is formed in the top of the movable rod, a limiting block is arranged above the contact rod, a movable block is arranged in the limiting groove, transverse plates are hinged to the front side wall and the rear side wall of the movable block, a threaded rod is rotationally arranged at the bottom of the limiting groove, and a positioning groove is formed in the lower end face of the limiting block. The device has the advantages that the chain links to be detached can be in a loose state, a worker can conveniently detach the chain links needing to be maintained, the worker can conveniently insert the movable rod into a gap between the two chain links for limiting, and then the device can conveniently drive the chain links at the position of the movable rod to be close to each other.

The application discloses a transmission chain dismounting tool, and belongs to the technical field of mechanical maintenance tools. The tool comprises a supporting assembly, a tensioning assembly and a driving assembly. The tensioning assembly is provided with two groups of linear sliding rails arranged in parallel, and at least two tensioning arms are slidably arranged on each sliding rail. The driving assembly is arranged on the supporting assembly and is used for driving the two groups of sliding rails to move synchronously towards or away from each other. Corresponding tensioning arms on different sliding rails can be horizontally aligned to form a clamping unit. During use, the clamping unit can be clamped into the rollers of multiple rows of transmission chains at the same time, and the synchronous tensioning or releasing of the multiple rows of chains can be realized under the action of the driving assembly. The problems that the multiple rows of chains can only be dismounted and mounted step by step, the efficiency is low, and there are hidden dangers in the prior art are solved, the maintenance and equipment downtime are significantly shortened, the risk that the chains are unevenly stressed and fall off is avoided through mechanical synchronous driving, the operation safety is greatly improved, and the tool is suitable for the dismounting and mounting operation of single-row and multiple-row chains.

The utility model discloses a novel chain cutter which comprises a main body, a handle, a positioning seat, an ejector pin, a screw rod, a supporting column, an anti-falling sleeve and a ball, an axially extending containing cavity and a strip-shaped groove are formed in the middle of the main body, the positioning seat is installed at the bottom of the containing cavity, and the screw rod penetrates through the tail of the main body to enter the containing cavity. A cavity is formed in the front end of the screw rod, the tail of the ejector pin is inserted into the cavity, the ejector pin is installed at the front end of the screw rod through the anti-falling sleeve, and the ball is located in the cavity and abuts against the tail of the ejector pin and the bottom of the cavity; the front end of the ejector pin is aligned with the strip-shaped groove; the supporting column is mounted on the main body, and the upper end of the supporting column forms a supporting fulcrum for the ejector pin; the upper end of the handle is mounted at the bottom of the main body; and the positioning seat is provided with a plurality of positioning pieces for positioning the chain left and right. The chain cutting-off device is ingenious in structural design, capable of achieving positioning and cutting-off of the chain and convenient to use.

The utility model belongs to the technical field of mechanical tools, and discloses a chain truncation dismantling tool which comprises a bottom plate, a first clamp and a second clamp are installed on the bottom plate, the first clamp and the second clamp are parallel to each other, and the second clamp is provided with a fork opening. The first clamp is fixedly provided with a hollow top cylinder, the front end of the top cylinder is provided with a top nozzle, the position of the top nozzle corresponds to the fork opening, the tail end of the top cylinder is fixedly provided with a nut, the nut is in threaded connection with a top rod, the front end of the top rod is integrally connected with an ejector pin, and the ejector pin is matched with the top nozzle in a sliding mode. Due to the adoption of the structural design, the pin shaft can be violently ejected out of the chain by completely depending on the rotating and advancing force between the nut and the ejector rod, and the position of the pin shaft of the chain is easy to determine under the effect of the fork entry, so that the pin shaft of the chain is beneficial to operation, convenient, safe, labor-saving and high in applicability.

The utility model relates to the technical field of battery production equipment maintenance, in particular to a plate chain production line driving chain maintenance tool. Comprising two clamping pieces, the two clamping pieces are in sliding connection with the sliding rod and are in threaded connection with threaded sections on the two sides of the two-way screw correspondingly, each clamping piece comprises a hook plate, each hook plate comprises a vertical part on the lower side and a straight part on the upper side, a clamping groove is formed in the lower end of the vertical part of each hook plate, and a connecting block is fixed to the end, away from the vertical part of each hook plate, of the corresponding straight part of each hook plate; the sliding rod penetrates through the connecting block, and the two-way screw is in threaded connection with the connecting block. Due to the fact that the hook plate comprises the vertical portion on the lower side and the straight portion on the upper side, and the two-way screw and the sliding rod are both connected with the connecting block fixed to the straight portion of the hook plate, when the two connecting ends of the chain are pulled close through the two clamping pieces, the operation space above the two connecting ends of the chain can be reserved, and when the two connecting ends of the chain are connected, the operation space is not limited. The roller of the chain can be conveniently installed, and the two ends of the pin shaft of the chain can be conveniently upset.

The invention discloses a method for replacing a chain of a coiling elevator, which comprises the following steps of: 1, determining an initial position, and adjusting the position of a trolley to a descending position to ensure that the trolley is accurately in place; secondly, a safety pin is locked, a balance weight is fixed, and after the trolley reaches the descending position, the chain balance weight safety pin fixing position is inserted; step 3, three-party power failure listing: cutting off a power supply, hanging a warning board, confirming that the equipment is powered off, and forbidding operation of other people; fourthly, the spiral jack is used for synchronous jacking, the spiral jack is used for jacking the trolley, the spiral jack is placed at the designated position, force is evenly applied to jack the spiral jack to about 200 mm, the process is kept balanced, slippage or inclination is prevented, and the chain is in a loose state; 5, pin shaft dismounting and anti-falling control are carried out; a pin puller or a hammer is used for dismantling pin shafts at the lower ends of the trolley and the chain, and the chain and the trolley are disconnected; sixthly, crane hoisting and tool cooperative operation are carried out, the balance weight end chain is lifted through the tool, and the balance weight end chain is stably lifted through a crane and the tool to be loosened; seventhly, a pin shaft at the balance weight end is dismantled; eighthly, a new chain is replaced; and ninthly, the pin shaft is inserted again, the position of the trolley is adjusted, and the equipment returns to the normal state.

A track disassembling device comprises a protective housing, a cleaning component and a lifting pin, wherein the protective housing comprises a shell and a supporting plate, the cleaning component is movably sleeved with the protective housing and comprises a cleaning disc, a positioning rod, a connecting disc, a limit disc, a first spring and a first movable block, and the lifting pin is propped against the cleaning disc. A crank structure is formed by fitting with a connecting rod, a locating pin, a second movable block and other structures through the rotation of a turntable, and the second movable block can make reciprocating movement under the limit of the supporting plate to the second movable block; the second movable block making reciprocating movement can exert pressure on the first fixing component to form an impact when the electric telescopic rod extends, achieving separation from the axis pin.

The utility model discloses an auxiliary chain mounting mechanism, which belongs to the technical field of chain mounting and comprises a first limit component and a second limit component, each of the first limit component and the second limit component comprises a first sleeve and a second chain hook mounted at the top of the first sleeve, the bottom of a first sleeve in the first limiting assembly is connected with an end plate through a second connecting rod, a second screw is installed on the inner side of the end plate, and the bottom of a first sleeve in the second limiting assembly is connected with a second sleeve through a first connecting rod. Due to the fact that the first limiting assembly and the second limiting assembly which are connected through the second screw rod are arranged, and the working space is reserved between the first limiting assembly and the second limiting assembly, chain installation is more convenient, operation is more convenient, and improvement of the chain installation efficiency is facilitated.

The utility model discloses a chain disassembling tool for a cigarette factory. The chain disassembling tool comprises a fixing block, a limiting assembly and a disassembling assembly. The limiting assembly comprises a limiting part and a limiting plate, the limiting part is arranged on the fixing block, the limiting plate is arranged at the top of the fixing block, and the limiting part is used for placing a chain; the dismounting assembly comprises a knocking hammer and a pin shaft, the pin shaft penetrates through the limiting plate and abuts against the chain, and the knocking hammer acts on the pin shaft. During use, an operator firstly places a chain in the limiting part, then the limiting plate is installed on the fixing block, the pin shaft penetrates through the limiting plate to abut against the chain, the operator holds the knocking hammer, and the knocking hammer acts on the pin shaft and further acts on the chain, so that disassembly or assembly operation of the chain is completed. The problem that time and labor are wasted in a traditional chain dismounting and mounting method is solved, displacement caused by the fact that the chain is not reliably fixed in the operation process and potential safety accidents caused by displacement are eliminated, and the accuracy and the success rate are improved.

The utility model relates to the technical field of chain connection, and discloses an auxiliary device for chain connection. The chain connection auxiliary device comprises two lifting hook assemblies and an adjusting assembly, the two lifting hook assemblies are used for being connected with the two ends of a chain correspondingly, the adjusting assembly is connected between the two lifting hook assemblies, and the adjusting assembly is arranged to be capable of adjusting the distance between the two lifting hook assemblies so as to adjust the relative positions of the two ends of the chain in the horizontal direction. The two lifting hook assemblies can connect the two ends of a broken chain, the adjusting assembly meets the requirements for the tightness and tension of connection of the broken chain by adjusting the distance between the two lifting hook assemblies, and it is guaranteed that the reconnected chain can restore to the state before breaking; according to the chain connection auxiliary device, the two ends of a broken chain can be quickly and effectively connected, so that the broken chain can be conveniently and auxiliarily connected, time and labor are saved, and the chain connection efficiency and safety are improved.

A method of repairing a chain can include aligning an orifice of an outer chain link with an orifice of an inner chain link; inserting a pin through the aligned orifices, the pin having a threaded end opposite a head end; engaging a multi-jack bolt tensioner with the threaded end of the pin, the multi-jack bolt tensioner having a plurality of fasteners; advancing each of the plurality of fasteners to bear against the outer chain link; and forming an interference fit between the pin and the outer chain link at the orifice of the outer chain link as a result of the advancement of the fasteners.

A semi-automatic leaf chain link disassembling machine comprises a leaf chain feeding device, and the leaf chain feeding device is matched with a leaf chain link disassembling device. The plate type chain joint disassembling device comprises a plate type chain flattening device, a plate type chain positioning device, a pin shaft disassembling device and a pin shaft riveting device. The plate chain flattening device comprises a first guide wheel, a second guide wheel and a third guide wheel which are vertically arranged at intervals, a guide rod is arranged at the bottom of the third guide wheel, a chain wheel driven by a second motor is arranged in a gap of the lower side face of the guide rod, and the chain wheel is in meshed connection with a plate chain. According to the device, the leaf chain is introduced into the pin shaft dismounting device, the pin shaft on the leaf chain is quickly dismounted by accurately aligning the leaf chain positioning device with the pin shaft hole, then the punched pin shaft is manually riveted into the pin shaft hole by the pin shaft riveting device, and semi-automatic operation of feeding, pin shaft dismounting and riveting is realized in the whole process; the operation is simpler, more convenient and more efficient.

The utility model belongs to the technical field of chain maintenance, and discloses a quick chain detaching device which is used for detaching a chain and comprises a supporting assembly and an ejection assembly. Wherein the supporting assembly is provided with a through hole, the ejection assembly is in threaded connection with the supporting assembly, the screwing depth of the ejection assembly in the supporting assembly is adjustable in the center line direction of the through hole, the ejection assembly can stretch into the through hole, the ejection assembly comprises a screwing piece, the screwing piece comprises a first equal-diameter section, one end of the first equal-diameter section is connected with an ejection piece, and the other end of the first equal-diameter section is connected with the ejection piece. The ejection piece can eject out a pin shaft connecting two adjacent chain links in the chain, and the first equal-diameter section can stretch into a hinge hole of the two adjacent chain links in the chain. According to the chain quick-detaching device, the situation that the ejection piece is damaged due to the fact that the ejection piece deviates relative to the pin shaft when the chain is detached is avoided, and the detaching efficiency of the chain quick-detaching device is improved.

A wedge driver and method are presented. The wedge driver can be operatively coupled to different ends of a link connection to push a wedge therebetween to form a single link. The wedge driver can also push a wedge out of the link connection. The present disclosure provides an advantage of enabling safe and effective removal of the link connection by preventing violent or forceful disconnection of the link connection. The wedge driver can include a main portion, a first protrusion, a second protrusion, a bolt, and a driver. The driver can be spring-activated such that the driver can retract into the main portion as the bolt exits the main portion. The bolt of the wedge driver can push the driver out of the main portion to axially push (or push) the wedge into the link connection without rotating the wedge.

The invention discloses a system for on-line maintenance of a scraper blade and a chain of an underground coal mine scraper machine, comprising: a tensioning device placed on the side of the scraper blade to be maintained, the direction of the scraper blade being perpendicular to the placement direction of the tensioning device; the maintenance clamping plate is of an n-shaped structure with a downward opening, and the opening of the maintenance clamping plate is used for allowing the bent scraping plate needing to be maintained to stretch in; one side of the maintenance clamping plate is fixedly connected with a connector at the tensioning end of the tensioning equipment; one end of the chain traction rope is fixed to the maintenance clamping plate, the other end of the chain traction rope is fixedly connected with a hook, and the hook is used for being hung on a broken chain needing to be maintained; according to the scraper straightening device, the scraper can be straightened under the condition that a motor is not started, the motor does not need to be started when the scraper is replaced and a broken chain is maintained, and potential safety hazards existing in the prior art are greatly reduced.