360results about "Chain links" patented technology

A pushing chain for a villa elevator relates to the technical field of pushing chains and comprises a pushing chain body, the pushing chain body comprises a first chain plate and a second chain plate, limiting grooves are formed in the upper portions of the front ends of the first chain plate and the second chain plate, limiting blocks are arranged on the upper portions of the rear ends of the first chain plate and the second chain plate, and the limiting grooves are used in cooperation with the limiting blocks. First protrusions extending forwards are arranged at the bottoms of the front ends of the first chain plate and the second chain plate, first connecting holes are formed in the first protrusions, second protrusions are arranged at the rear ends, where the inner sides of the lower portions of the limiting blocks are located, of the first chain plate or the second chain plate, and second connecting holes are formed in the second protrusions. The second protrusions are bent and translated towards the outer side relative to the first chain plates or the second chain plates, the translating distance is the same as the thickness of the first protrusions, and the second protrusions of the first chain plates and the second chain plates are opposite in direction relative to the first protrusions. The device is used for being installed on the side face of the villa elevator car and has the advantages of being simple in structure, small in occupied space, high in speed, large in load, low in maintenance cost, safe and reliable.

The present invention provides a closed anti-disconnection and noise-reducing micro cable carrier. A limiting structure is provided between two adjacent chain links. The limiting structure includes a limiting groove provided on one of the chain links, and a limiting block provided on the adjacent other chain link and adapted to be connected with the limiting groove. The limiting block has a first surface opposite to the bottom wall of the limiting groove. By providing a damping member on one of the first surface and the limiting groove, the damping member is adapted to slide and friction with the mating surface opposite thereto when the limiting block rotates, and the damping member has elasticity. In this way, before the limiting block rotates to contact the side wall of the limiting groove, its contact speed and collision force with the side wall of the limiting groove will be reduced due to the action of the frictional force and the elastic damping force. Compared with the prior art, this has a better noise reduction effect.

The abrasion-resistant chain is formed by connecting a plurality of chain link units in series, one end, provided with an end piece, of a pin shaft is provided with an oil injection hole channel, the oil injection hole channel is arranged in the axial direction of the pin shaft, one end, away from the end piece, of the oil injection hole channel is provided with an oil outlet channel communicated with the oil injection hole channel, and the oil outlet channel is arranged in the direction perpendicular to the axial direction of the pin shaft. The two ends of the oil outlet channel penetrate to the outer wall of the pin shaft. A plugging assembly is arranged at the end, close to the end piece, of the oil injection hole channel and comprises a clamping piece, a pressing piece and a spring. A through hole is formed in the center of the clamping piece, the clamping piece is arranged on the inner wall of the oil injection hole channel, and a clamping groove is formed in the bottom of the through hole; the pressing piece comprises a pressing part, a middle plate and a first connecting part arranged between the pressing part and the middle plate, and a sealing block is arranged below the middle plate; the pressing piece is rotationally arranged in the oil injection hole channel, the middle plate is slidably located in the through hole, the spring is located between the pressing part and the clamping piece, and the sealing block abuts against the side wall of the clamping groove.

A band includes at least three members pivotably connected to one another so as to be pivotable between open and closed positions. A first member includes first and second permanent magnets disposed at opposite ends thereof, a second member includes a third permanent magnet and a third member includes a fourth permanent magnet. The first and second members are configured such that when they are pivoted with respect to each other past a threshold position toward the closed position, they are biased toward the closed position by forces created by the first and third magnets and when they are pivoted with respect to each other past the threshold position toward the open position, they are biased toward the open position by forces created by the first and third magnets. The first and third members are similarly biased by forces created by the second and fourth magnets.

The utility model relates to the technical field of plate-type chains, in particular to a guide plate-type chain with lubrication. According to the technical scheme, the chain comprises inner chain links and outer chain links which are evenly distributed, guide boss structures are arranged on outer chain plates of the outer chain links, and the outer side positions of the guide boss structures exceed the plane where the outer side end faces of pin shafts on the inner chain links and the outer chain links are located. The outer side of the guide boss structure is of a spherical surface structure, a matching receding plane is arranged on the outer side of the guide boss structure, a lubricating matching safety groove is formed in the matching receding plane, and a lubricating grease arrangement limiting groove is formed in the lubricating matching safety groove. The guide device has the advantages that the guide device can be conveniently replaced in the later use process, maintenance is more convenient, production cost is low, the main body guide position of the guide device is provided with a lubricating structure, lubricating grease can be stored in cooperation, and lubricating smoothness in the guide use process is better.

The utility model discloses a meshing type load chain structure and a chain group thereof. The chain structure comprises a first chain A and a second chain B which are oppositely arranged, the first chain A and the second chain B are each formed by connecting a plurality of chain links with two or more inner chain pieces and outer chain pieces in series, wherein the outer chain pieces are connected with the chain links in an end-to-end alternating mode through pin shafts. The inner chain pieces and the outer chain pieces are the same in shape and structure and are in axial symmetry. Each inner chain sheet of the first chain A and the inner chain sheet of the second chain B are oppositely and correspondingly arranged and are meshed with each other; each outer chain sheet of the first chain sheet A and the outer chain sheet of the second chain B are oppositely and correspondingly arranged and are meshed with each other; and the opposite surfaces of the inner chain sheets and the outer chain sheets are parallel and continuous smooth curved surfaces. By the adoption of the chain structure and the chain set, the load generated when the chain structure is used for conducting linear reciprocating transmission in a limited space can be effectively increased, and the mechanical noise problem generated when the chain structure and the chain set are in the working state is remarkably reduced.

The invention relates to a link (10) of an article, particularly jewelry, leather goods, textiles, cosmetics, or furniture, comprising a main body (100) and a separate closure cap (200). The main body (100) has a base portion (110) with an enlarged cross-section, a head portion (120) with a reduced cross-section extending from the base portion (110), and an insertion slot (130) formed in the head portion (120). The closure cap (200) has an internal space (201) and an insertion opening (221) opening into the internal space (201), and is configured to be removably fitted, via its insertion opening (221), onto the head portion (120) to close the insertion slot (130), thereby... The main body (100) and the closing cap (200) together define a closed link (10) when assembled. See Figure 4 for abbreviations.

The invention discloses a single-chain wedge seam self-locking type variable rigid chain and a rigid-flexible converter thereof, the variable rigid chain comprises a plurality of chain link bodies, the plurality of chain link bodies are connected in sequence, and every two adjacent chain link bodies are hinged; each chain link body comprises a chain link base body and a self-locking mechanism, the self-locking mechanism is used for controlling locking and unlocking between every two adjacent chain link bodies, and when the self-locking mechanism is in a locking state, every two adjacent chain link bodies cannot rotate; and when the self-locking mechanism is in an unlocking state, every two adjacent chain link bodies can rotate. The technical effects of the invention are that the whole body adopts a single chain type structure, the volume is compact, the arrangement is flexible, the cost performance is high, a self-locking mechanism is arranged between two adjacent links, the rigid state and the flexible state can be flexibly switched, and the self-locking mechanism performs locking and unlocking by utilizing the wedge seam principle, so that the safety is high. The shearing force borne by the locking structure in the working process of the chain body can be reduced to the maximum extent, the reliability of the chain link locking structure is guaranteed, and the blocking probability is reduced.

The utility model provides a keel chain structure and belongs to the technical field of keel chains. Comprising a plurality of keel units which are hinged and matched end to end, one end of each keel unit is provided with a chain link convex part, the other end of each keel unit is provided with a chain link concave part, and the chain link convex part of one keel unit is hinged to the chain link concave part of the other keel unit through a connecting shaft between every two adjacent keel units; the connecting shaft penetrates through the chain link convex part and the chain link concave part which are connected, the interior of the connecting shaft is hollow and is filled with lubricating oil, a horizontal groove is formed in the surface of the connecting shaft, a ball is embedded in the bottom of the horizontal groove, one part of the ball is located in the cavity of the connecting shaft, and the other part of the ball is located in the horizontal groove and is flush with the outer edge face of the connecting shaft. According to the utility model, the self-lubricating structure is arranged, so that the smooth use effect during long-term use is ensured, each unit is convenient to disassemble and assemble, the later maintenance and the supplement of lubricating oil are facilitated, and the overall use is convenient.

The utility model provides a feeding conveying chain, which relates to the technical field of conveying chains, and comprises first chain plates, second chain plates and semicircular fixing pins, two semicircular fixing pins are arranged between any pair of adjacent first chain plate and second chain plate and are distributed in a central symmetry manner; one opposite ends of the two semicircular fixing pins are fixedly connected with limiting columns used for limiting the position of the first chain plate or the second chain plate, the limiting columns are provided with semicircular grooves matched with the contours of the other ends of the semicircular fixing pins, and by arranging the two semicircular fixing pins, the relative position of the first chain plate and the second chain plate can be limited; and by arranging the limiting columns, the semicircular fixing pins are prevented from falling off from the chain plates, and by arranging the inserting grooves and the inserting blocks, axial displacement between the two semicircular fixing pins is prevented.

The utility model discloses a drag chain link plate connecting structure, which belongs to the technical field of drag chain part equipment, and comprises an upper cover plate and a lower support plate which are used for connecting a left drag chain unit and a right drag chain unit, a separation sheet is clamped between the upper cover plate and the lower support plate, the two ends of each drag chain unit are provided with circular link plates which are clamped in a mutually aligned manner, and the circular link plates are connected with the upper cover plate and the lower support plate. Wherein an arc-shaped protrusion is machined at one end of the inner side face of the chain link plate located on one side, a rectangular groove is machined in the other end of the inner side face of the chain link plate located on one side, a rectangular protrusion is machined at one end of the outer side face of the chain link plate located on the other side, an arc-shaped groove is machined in the other end of the outer side face of the chain link plate located on the other side, and guide grooves are formed in the middle positions of the surfaces of the arc-shaped protrusion and the rectangular protrusion. According to the connecting structure, on one hand, the connecting stability between the adjacent drag chain link plates is improved through the embedded magnetic attraction ring structure, meanwhile, the guiding structure is specially designed to guide rotation of the drag chain link plates, the dislocation phenomenon after long-time use is reduced, and the working stability and reliability of the drag chain are improved.

The utility model relates to the technical field of special-shaped chains, in particular to a special-shaped chain. According to the technical scheme, the special-shaped chain comprises a special-shaped chain body, the special-shaped chain body comprises a plurality of special-shaped chain blocks, each special-shaped chain block comprises a connecting tail block, a connecting head block is arranged on the rear side of each connecting tail block, a connecting groove is formed in the rear side of each connecting head block, and first pin holes are formed in the left side and the right side of each connecting tail block in a penetrating mode. According to the special-shaped chain, the plurality of special-shaped chain blocks, the fixing blocks, the connecting plates, the triangular blocks, the connecting pins, the pin heads, the pin caps and the U-shaped limiting blocks are arranged, so that the special-shaped chain bodies with different lengths can be combined according to requirements, can be connected end to end, can be quickly disassembled and assembled, can be disassembled and assembled without a tool, is convenient to maintain, and is convenient to use. The maintenance efficiency is improved, the connecting plates can be limited by arranging the inserting grooves to the blocking pieces, connection is more stable, and convenience is provided during disassembly by arranging the lug plates to the hook plates.

To provide a chain that allows easy insertion and removal of pins without a special tool so as to facilitate assembly or maintenance in any location. The chain includes a plurality of pairs of inner link plates, a plurality of pairs of outer link plates, a plurality of pins including at least one joint pin, and a plurality of bushings, with the pins being inserted through the bushings. The joint pin includes an outer pin that is cylindrical and has an internal thread, and an inner pin that has an inserted portion with an external thread, which is inserted into the outer pin, and a head that protrudes from the outer pin. The inner pin includes a portion serving as a retainer that retains the outer link plate.

The present invention provides a high-speed, high-load and silent drag chain, which is formed by splicing a plurality of chain links. Adjacent two chain links are rotationally connected through a connecting shaft assembly. The chain link includes: a chain link body; an elastic member, which is detachably mounted on the chain link body and is elastically deformed under pressure when adjacent two chain link bodies rotate. Since the elastic member can adopt a material with better elasticity, when the drag chain moves at high speed, the elastic member can provide a large buffering force, thereby achieving silence. In addition, when the elastic member is damaged, it can be replaced separately, reducing the maintenance cost; the elastic member has a first deformation state driven by the chain link body and moving towards the direction close to another chain link body, and a second deformation state of continuing to deform after abutting against another chain link body, that is, the elastic member can buffer the impact force of the drag chain twice. Compared with the prior art, the silent effect is better, and the V-shaped or O-shaped second elastic part has the advantages of simple structure and low production cost.

An investment cast, stainless steel chain link for use a part of a chain. The chain link includes a pair of spaced first and second sidebars that each extend between forward and rear ends of the chain link. A reinforcing rib is formed on each sidebar and is flush with the forward and rear ends of the chain link. A barrel is formed at the rear end of the sidebars. The forward end of the sidebars includes either a first or a second attachment boss. The first attachment boss includes a pin head receptacle that allows the head of the chain pin to be flush with an outer surface of the first attachment boss. A retaining pin extends through the second attachment boss to prevent axial movement of the chain pin. In one embodiment, the chain pin is rotatable and, in another embodiment, the chain pin is prevented from rotating.

The utility model relates to the technical field of furrowing machine chains, in particular to a machine chain structure of a furrowing machine chain, which comprises an inner chain plate and an outer chain plate, the inner chain plate is provided with two fixing grooves, the inner chain plate is fixedly connected with rubber sleeves through the fixing grooves, the outer chain plate is provided with four rotating grooves, and first rivets are rotatably connected in the rubber sleeves on the left side and the right side. The outer chain plates located on the left side and the right side are rotationally connected with first rivets through the rotating grooves, the two rubber sleeves located in the middle are internally and rotationally connected with second rivets, and the outer chain plate located in the middle is rotationally connected with the second rivets through the rotating grooves. The second rivet can be locked by penetrating the connecting pin shaft through the connecting pin hole, the connecting pin shaft is prevented from being dislocated through the limiting block, the limiting block is fixed through the buckle and the spring, the device can be rapidly mounted and dismounted, the device is not prone to falling off after being mounted, and the working efficiency of the ditcher during maintenance or repair can be effectively improved.

The application provides a rigid chain for a lifting platform, which comprises a first chain and a second chain arranged at intervals, the first chain and the second chain each comprise a plurality of chain links connected in sequence, each chain link comprises a first chain plate and a second chain plate arranged oppositely, adjacent chain links are movably connected through a pin shaft, the first chain plate and the second chain plate each have a first arc surface, a second arc surface and a third arc surface arranged towards the other chain, a plurality of clamping teeth are arranged at intervals on the third arc surface, when the first chain and the second chain are converted between a horizontal storage state and a vertical bearing state, in the vertical bearing state, the clamping teeth on the first chain and the clamping teeth on the second chain are engaged with each other to limit the first chain and the second chain from separating in a direction away from each other, and the application solves the problems of insufficient stability of the existing rigid chain in the vertical bearing state and poor tightness of the double-chain connection.

The present invention relates to a composite elongated body (3), comprising high performance polyethylene HPPE filaments (2) having a tenacity of at least 0.6 N / tex and a polymeric composition throughout (10) the composite elongated body, wherein the polymeric composition comprises a thermoplastic ethylene copolymer and a lubricant; and wherein the thermoplastic ethylene copolymer is a copolymer of ethylene and wherein said polymeric composition has a peak melting temperature in the range from 40 to 140°C, measured in accordance with ASTM E794-06. The present invention further relates to a lengthy body, an article and a crane comprising the composite elongated body; a method of manufacturing a composite elongated body; a method of manufacturing a lengthy body; and use of a polymeric composition.

The utility model provides a kind of multiple combination sealing type roller chain, belong to roller chain technical field.It includes pin shaft and respectively the outer chain plate of being set in the both ends of pin shaft, bushing is set in pin shaft, bushing both ends are respectively set with inner chain plate, roller is set in bushing, clearance fit is formed with lubricating portion between pin shaft and bushing, oil supply path is equipped in pin shaft with lubricating portion intercommunication, bushing both ends are respectively equipped with combination sealing assembly, combination sealing assembly includes the first sealing structure being arranged between bushing and outer chain plate, second sealing structure is also equipped between outer chain plate and inner chain plate outside the first sealing structure side.Lots of sealing structures form multiple sealing barrier in bushing end portion, ensure that can effectively block particle impurity and seawater penetration, can effectively prolong the retention time of lubricating oil, significantly improve the sealing effect and sealing life of bushing end portion.

The invention relates to a rigid chain, and belongs to the technical field of transmission chains, the rigid chain comprises a first chain and a second chain, the opposite sides of the first chain and the second chain are mutually engaged to form a rigid chain body, and the opposite sides of the first chain and the second chain are respectively provided with a first rack groove and a second rack groove along the length direction; by the adoption of the structure, the first rack groove and the second rack groove are formed in the opposite sides of the first chain and the second chain, so that the first chain and the second chain can be matched with the driving gear in a meshed mode, and the transmission mode that a traditional rigid chain uses a chain wheel to be meshed with a hole between a splicing shaft is abandoned; by adopting the meshing transmission of the rack groove and the gear, the meshing contact range is expanded, the stress balance in the transmission process is improved, the torsional rigidity in the transmission process can be enhanced, the shaking or tooth disengagement phenomenon in the operation process is avoided, the overall bearing capacity and transmission stability are remarkably improved, and the large-load and high-stability transmission requirements can be met.

To provide a chain that allows a pin to be easily inserted / removed without using a special tool and can be assembled and maintained at any location.SOLUTION: A chain comprises multiple pairs of inner link plates 110, multiple pairs of outer link plates 120, multiple pins 150 including at least one joint pin 150, and multiple bushings 130 into which the pins 150 are inserted. The joint pin 150 has an outer pin 151 that is cylindrical and has a female screw part 152 on an inner surface, and an inner pin 153 having an insertion part 159 with a male screw part 154 that is inserted into the outer pin 151 and a head part 155 that protrudes from the outer pin 151. The inner pin 153 has a fixing function part that fixes the outer link plate 120.SELECTED DRAWING: Figure 2

To provide a high-strength silent chain and a chain drive system. The silent chain is made up of a plurality of link plates pivotably coupled together with connecting pins. The plurality of link plates include two or more types of link plates having different shapes. The link plates of different shapes are designed to have pitch lines at the same height when the link plates sit on a sprocket. The chain drive system includes this silent chain.

The invention relates to the technical field of chain transmission, and provides a link unit which comprises a first chain link and a second chain link, and the first chain link and the second chain link are movably connected. The first chain link is provided with a first matching part, and the second chain link is provided with a second matching part; the first connecting piece is detachably and fixedly connected and matched with the first matching part and the second matching part respectively; the system further comprises a first deployer, and a guide structure is arranged in the first deployer. When the linking unit is in the first state, the first connecting piece is fixedly connected with the first matching part and the second matching part through the guide structure, and the first chain link and the second chain link are locked; when the linking unit is in the second state, the first connecting piece is fixedly connected with the second matching part through the guide structure, and the first chain link and the second chain link are unlocked; it is guaranteed that the link units reliably switch the rigid state and the flexible state, the deployment convenience degree is improved, the failure rate is reduced, and the structural strength after deployment is guaranteed.

The invention relates to the technical field of mechanical transmission, in particular to a precise miniature chain system which comprises pin shafts, the side walls of the ends of the two parallel pin shafts are connected with the side wall of an outer chain plate through spot welding, the pin shafts and the outer chain plate form an outer chain link, the ends of a sleeve A and a sleeve B which are parallel are connected with the side wall of an inner chain plate through annular welding, and the inner chain plate is connected with the outer chain link. The sleeve A is matched with the pin shaft of one outer chain link in an inserted connection mode, the sleeve B is matched with the pin shaft of the other outer chain link in an inserted connection mode, the sleeve A, the sleeve B and the inner chain plates form the inner chain links, the inner chain plates are arranged between the two outer chain plates, the inner chain links and the outer chain links are alternately connected to form the whole chain, and the inner chain links and the outer chain links are respectively introduced into the manufacturing process of ring welding and spot welding. The problem that connection is not firm due to the fact that the interference magnitude of fit between whole chain components of a micro chain is small is effectively solved, and the service life of the chain is prolonged.

The invention discloses a CVT (continuously variable transmission). Telescopic one-way ratchets are arranged at the two ends in a steel chain unit hole, and a spring is arranged between the two one-way ratchets to achieve the telescopic effect. A plurality of positive and negative ratchets can axially stretch out and draw back the chain units and are connected into a complete steel chain through pin shafts. Forward and reverse one-way ratchets capable of axially stretching out and drawing back on the steel chain and one-way ratchets fixed on left and right cone discs of the driving and driven reducing wheels are in transmission in a right-angle-to-right-angle meshing mode, and the problem that the CVT does not slip during stepless speed change is solved.