42results about "Metal chainmaking tools" patented technology

The utility model discloses a chain connecting pin dismounting device which comprises a working table, supporting legs are vertically and fixedly connected to the periphery of the bottom of the working table, universal wheels are arranged at the ends, away from the working table, of the supporting legs, a pair of supporting frames are oppositely arranged on the working table, the supporting frames on the two sides are connected through a threaded driving rod, and a driving motor is arranged on the supporting frame on one side. An output shaft of the driving motor is connected with the threaded driving rod; the threaded driving rod is movably connected with a one-way hydraulic device, the threaded driving rod rotates to drive the one-way hydraulic device to do linear motion, the telescopic direction of a piston rod in the one-way hydraulic device faces the workbench, one end of the piston rod is connected with a pressing rod, and a plurality of through holes are formed in the positions, opposite to the one-way hydraulic device, of the workbench. A collecting mechanism is arranged at the bottom of the workbench opposite to the through hole. According to the utility model, the connecting pin between the chain rings can be quickly and efficiently disassembled and assembled when the chain rings are added.

The utility model relates to the technical field of chain link disassembly, in particular to a transmission chain link disassembly tool which comprises a fixing frame, a moving hole is formed in the fixing frame, sliding blocks are symmetrically installed in the moving hole in a sliding mode through an installation assembly, and rectangular driving levers are fixedly installed on the upper surfaces of the two sliding blocks. A threaded rod is rotatably mounted on the lower surface of the fixing frame through a support assembly, the threaded rod is sleeved with a moving block in a threaded mode, supporting rods are rotatably mounted on the two side faces of the moving block, and the ends, away from the moving block, of the two supporting rods are rotatably connected with the lower surfaces of the two moving blocks correspondingly. The two rectangular driving levers are inserted into gaps of other chain links on the two sides of a chain link to be detached, then the chain link needing to be maintained can be detached conveniently through mutual cooperation of the threaded rod, the moving block, the supporting rod and the sliding block, operation is easy, time and labor are saved, and the hand of a maintainer can be effectively protected.

The utility model relates to the technical field of chain production and maintenance, in particular to a limiting sliding block convenient to disassemble and assemble a chain. According to the technical scheme, the device comprises a cuboid-shaped main body matching supporting plate made of stainless steel materials, and the front side and the rear side of the main body matching supporting plate are each provided with a cylindrical matching disassembly and assembly stabilizing column which is symmetrical and integrally formed. The right side of the matched disassembly and assembly stabilizing column exceeds the plane where the right side end face of the main body matched supporting plate is located, and a standby disassembly and assembly avoiding space is formed between the right side of the main body matched supporting plate and the matched disassembly and assembly stabilizing column. The utility model has the advantages that: the whole structure is relatively simple, when in use, the device can be arranged on a sliding guide rail on a maintenance device to be matched for use, and can be matched with a plurality of limiting sliding rails to be spliced for use as required, so that the disassembly and assembly use requirements of chains with various specifications can be met.

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 chains, in particular to a special tool for connecting a chain of a packaging section, and adopts the technical scheme that the special tool comprises a hook, a screw sleeve, a fixed plate, a screw rod and a movable plate, support plates are respectively welded on two sides of the bottom of the fixed plate, and bearings II are respectively embedded into the two support plates; a screw rod is fixedly installed on inner rings of the two second bearings, the two threaded sleeves are connected with the screw rod in a meshed mode, hooks are installed at the bottoms of the two threaded sleeves respectively, sliding blocks are installed at the tops of the two threaded sleeves respectively, a screw hole is formed in the movable plate, the screw rod is connected with the screw hole in a meshed mode, and a first bearing is installed on the top of the fixed plate. The bottom of the screw rod is fixedly connected with an inner ring of the first bearing, a first hand wheel is installed on the top of the screw rod, and a movable hole is formed in the movable plate on one side of the screw rod. The chain fixing device has the advantage that a worker can conveniently move the two ends of the chain to proper positions for connection and fixation.

The invention relates to a tool for driving a chain pin out of a chain link, comprising a handle body (10) which extends along a longitudinal axis (A) and has a positioning element (11) at a first end along the longitudinal axis (A), and a pressing-out device (20) with an upper (21) and a lower (22) projection, which in each case delimit an intermediate element (23) connecting the two projections (21, 22), wherein through bores (24, 25) coaxial with one another are provided in the two projections (21, 22) and a driving screw (30) with a press ram is screwed into the upper projection (21) at its end oriented towards the lower projection (22). This tool is intended to have good manual applicability, even for chains of different types, while at the same time having very small dimensions and being easy to transport, and in particular to enable machining of very narrowly constructed chain types. According to the invention, this is achieved by the fact that the handle body (10) has, at the first end along the longitudinal axis (A), a guide device (14) extending the handle body (10), in which guide device the pressing-out device (20) is mounted so as to be movable along the longitudinal axis (A) of the handle body (10) between a first position in which the positioning element (11) and the intermediate element (23) of the pressing-out device (20) form a chain space (40) for positioning the chain link (50), and a second position in which the pressing-out device (20) is spaced from the positioning element (11).

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 utility model relates to the technical field of chain correction machines, in particular to a right vertical clamp mechanism of a chain correction machine, which comprises a clamp seat and is characterized in that the clamp seat is of a plate-shaped structure, a clamp pair is arranged in the center of the inside of the clamp seat, and a chain is arranged in the center of the clamp pair. The clamp base is integrally formed by a center supporting plate and side plates matched with the two sides of the center supporting plate in an associated mode, mounting grooves are formed in the centers of the tops of the side plates, connecting plates are arranged in the mounting grooves, an air cylinder mounting base is jointly arranged between the inner walls of the connecting plates, and a driving assembly is arranged at the top of the air cylinder mounting base; according to the utility model, the driving assembly and the inner and outer clamps are associated and matched, the air cylinder with smaller thrust is used for clamping the clamp with large acting force, and after a chain reaches a clamping position as required, the air cylinder pushes the inner clamp to enter the outer clamp, so that the inner clamp and the outer clamp are precisely combined in a sliding manner, the production efficiency is improved, and the repeated correction of a chain ring is effectively avoided.

The utility model provides a chain connecting machine for chain repair, which comprises a base, an oil cylinder assembly, a ring breaking mechanism and a ring closing mechanism. The ring breaking mechanism comprises a slideway, a fixed ring breaking die and a sliding ring breaking die; the ring closing mechanism comprises a slideway, a fixed ring closing mold and a sliding ring closing mold; the oil cylinder assembly acts on two sides, one side drives the sliding ring breaking-off die to achieve the effect of breaking off a single ring, and the other side drives the sliding ring closing die to achieve the effect of closing the single ring. The utility model relates to the field of chain repair, in particular to a chain connecting machine for chain repair, which drives a ring breaking mechanism and a ring closing mechanism through reciprocating motion of an oil cylinder to complete a chain ring connecting process, is small in dead weight, convenient to move, capable of moving to a position where a chain needs to be repaired to work, and capable of improving efficiency and reducing cost. The labor is reduced.

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 present invention discloses a device for an automatic reel for anchor cables, comprising a tooling platform, with horizontal support plates welded on the left and right sides of the lower surface of the tooling platform, an external frame welded between the bottom ends of two groups of the horizontal support plates, a rotating shaft installed at the bottom power output portion of the tooling platform, and tires installed at the two power output ends of the rotating shaft. The device for an automatic reel for anchor cables is driven by a bolt fastener connected to the front portion of the clamping double-piece to squeeze downward, and the extrusion block connected by bolts at the bottom will cooperate with the upper semi-arc groove block to squeeze the drive plug-in column, so that the drive plug-in column can be limited and clamped, causing the drive plug-in column to rotate between the extrusion block and the semi-arc groove block without displacement, and the drive plug-in column and the plug-in hole are plug-in-shaped, so that the driving force is transmitted to the docking pillar, so as to realize the curling of the anchor cable and the regulation of the winding plate.

The present invention provides a heavy-duty chain replacement device for replacing the chain within a chain frame, which comprises a mobile trolley, a lifting lead screw, a loading frame, a discharging frame, a driving sprocket, a driving mechanism, a lifting lead screw and a lifting platform; both the loading frame and the discharging frame are arranged above the mobile trolley through the lifting lead screw; the loading frame is of a linear structure, and the outlet of the loading frame contacts one side of the chain frame; the discharging frame has a first discharging frame part and a second discharging frame part connected in an L-shaped structure, the first discharging frame part is located on the upper surface of the chain frame, the lifting platform is arranged above the discharging frame, and the lifting lead screw is arranged between the discharging frame and the lifting platform; the driving sprocket is arranged on the lifting platform, and the output end of the driving mechanism is fixedly connected to the driving sprocket. This device is suitable for the replacement of large-sized and heavy-duty chains, not only with high replacement efficiency, but also capable of reducing operation risks.

An industrial driver apparatus includes a forklift hydraulic motor, a drive shaft adapter, a hydraulic pump, and a frame. The forklift hydraulic motor includes a housing and a drive shaft. The drive shaft adapter is coupled to the drive shaft of the forklift hydraulic motor and adapts the drive shaft of the forklift hydraulic motor to a dimension of a threaded component being driven by the forklift hydraulic motor. The hydraulic pump pressurizes a hydraulic fluid used to drive the forklift hydraulic motor. The frame is coupled to a housing of the forklift hydraulic motor and prevents the forklift hydraulic motor from rotating while the drive shaft rotates the threaded component.

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 a scraper chain maintenance tool, which belongs to the technical field of scraper chain maintenance and comprises a support, an adjusting component is arranged in the support, a first hook is arranged at one end below the adjusting component, the adjusting component is connected with the first hook through a dismounting component, and a second hook is arranged at the other end below the adjusting component. The adjusting assembly and the second hook are also connected through the dismounting assembly; by arranging the adjusting assembly, the effect that one worker drives the two hooks to move at the same time, so that chains on the two sides are tensioned, and convenience is high is achieved; by arranging the dismounting assembly, the effect that the most suitable hook can be replaced conveniently according to the specification of the chain roller is achieved; a vertical plate, a square rod, a damping block and a fastening spring are further arranged, so that the rotating handle can be fastened conveniently, and the adjusting assembly is prevented from rotating reversely; and by arranging the lubricating opening and the sealing plug cover, the two-way threaded lead screw can be conveniently lubricated, and the working fluency of the double-way threaded lead screw is improved.

A wedge driver and method therefor is presented. A wedge driver can be operably coupled to different ends of a link joiner to drive a wedge therebetween to form a single link. The wedge driver can also drive the wedge out of the link joiner. The present disclosure provides the benefit of allowing the safe and effective removal of the link joiner by preventing violent or forceful decoupling of a link joiner. The wedge driver can include a trunk, a first prong, a second prong, a bolt, and a driver. The driver can be spring enabled, such that the driver can recede into the trunk as the bolt egresses the trunk. A bolt of the wedge driver can push a driver out of the trunk to axially drive the wedge into (or out of) a link joiner without rotating the wedge.

The present invention discloses a disassembly and assembly method for quickly replacing chain links of a large-scale cooler, which relates to the technical field of cooler maintenance. The disassembly and assembly method for quickly replacing chain links of a large-scale cooler according to the present invention includes pre-removing the middle hood and chimney of the cooler → shutting down the machine → removing the upper trolley → removing the upper chain links → reinstalling the new upper chain links and the new upper trolley → replacing the lower chain links and reinstalling the lower trolley → replacing all the remaining chain links and reinstalling the remaining trolleys → reinstalling the hood and carrying out the finishing work → commissioning; two lifting points are respectively arranged at the middle and the tail of the removed middle hood to simultaneously carry out the removal and reinstallation processes of the upper trolleys and chain links of the cooler, so as to improve the replacement speed of the chain links and reduce the production loss during shutdown; after the reinstallation of the upper chain links and the upper trolley is completed, the replacement of the lower and the remaining chain links and the reinstallation of the lower and the remaining trolleys only need to rotate the head wheel twice, which is carried out after rotating the old lower chain links above the cooler, thereby saving the installation time.

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.

The utility model relates to the technical field of chain removal, and in particular to a chain removal device, comprising a device body, the device body comprising a base, a cam, a chuck, a punch and a pressure rod, a through groove is horizontally penetrated inside the base, a reset spring is sleeved on the outer circumferential wall of the end of the chuck away from the output end, the chuck and the reset spring close to the end of the reset spring are located inside the through groove, a fixed shaft is rotatably arranged on a fixed seat inside the end of the base away from the chuck, one end of the fixed shaft passes through the base and extends to the outside thereof, the cam is located inside the base and sleeved on the outer circumferential wall of the fixed shaft, and the cam slot located inside the base matches the chuck structure; the application utilizes the principle of lever, with the help of artificial power input, which is transmitted to the punch through the pressure rod, so that the punch has a forward kinetic energy, thereby accurately removing the chain, and can quickly, accurately and efficiently remove the chain, greatly reducing the waiting time, increasing the efficiency of felling, and is easy to carry and install.

The scraper chain overhauling device comprises supporting pipes coaxially and fixedly connected to the two sides of a transition disc, an adjusting rod is rotatably arranged in the supporting pipes in a penetrating mode, an adjusting disc clamped into the transition disc is fixedly connected to the middle of the adjusting rod, an operation opening is formed in the transition disc, screw rods are fixedly connected to the two ends of the adjusting rod, and sliding blocks are screwed to the screw rods; the sliding block is fixedly connected with a sleeve arranged outside the supporting pipe in a sleeving mode, and a hook is fixedly connected to the sleeve. The adjusting disc is rotated at the operation opening, the adjusting rod and the screw can be driven to rotate synchronously, then the two hooks are driven to move oppositely, the hooks are made to hook the rollers of the chain tightly, and therefore the chain between the two rollers can generate proper allowance, maintenance work can be conducted conveniently, limitation of the operation space is reduced, and operation is easy and convenient.