614 results about "Kinetic friction" patented technology

A method of additive manufacturing a part having integrated passages is provided. In one aspect, the method includes forming a part having a near net shape by moving a friction stir tool to deposit a filler material in a predetermined formation. The tool can include a rotating spindle having a channel configured to hold the filler material. The method can include machining the near net shape part to form a plurality of grooves extending into a surface of the part, the plurality of grooves sized and shaped to each receive a tube. The method can include placing a tube into each of the plurality of grooves and moving the tool across the surface of the part and depositing additional material configured to secure the tubes within the plurality of grooves. The method can include machining the additional material deposited over the tubes to a predetermined shape.

The invention relates to the technical field of friction coefficient measuring devices, and discloses a device for testing the friction coefficient of an anti-skid coating of a cultivation work ship deck. Comprising a testing platform, a friction coefficient testing mechanism arranged below the testing platform, a driving mechanism arranged on the testing platform and used for driving the friction coefficient testing mechanism to horizontally move, and a partition assembly and a water spraying assembly arranged in the middle of the lower surface of the testing platform; through the arrangement of the high-pressure nozzles, in the moving process of the testing platform, high-pressure gas can automatically clean a deck testing area through the high-pressure nozzles, dust attached to the surface of a deck is effectively removed, manual pre-cleaning is not needed, the testing efficiency is remarkably improved, meanwhile, seawater is sprayed to the designated testing area through the water spraying assembly, and the testing efficiency is improved. The environment of the residual seawater on the deck in the actual operation of the cultivation work ship is accurately simulated, and the technical problems that an existing portable sliding friction instrument needs to be manually cleaned and cannot simulate the residual seawater environment are solved.

The invention relates to the field of low-temperature liquid conveying equipment, and discloses a rotor supporting system of a low-temperature liquid pump, which is arranged on a pump rotating shaft and is used for supporting a rotor. The system includes a fixed bearing bushing, a swivel bearing bushing, and a flexible coupling bushing ring. The fixed bearing bushing is fixedly mounted in a bearing supporting seat of the pump body; the rotating bearing bush is arranged on the pump rotating shaft in a sleeving mode, and a sliding friction pair is formed between the rotating bearing bush and the fixed bearing bush. And the flexible connecting bushing ring is arranged between the rotary bearing bushing and the pump rotating shaft and is in interference fit with the rotary bearing bushing and the pump rotating shaft respectively. Through the flexible connection bushing ring, the thermal deformation difference of materials in a low-temperature environment can be absorbed, starting impact and operation friction damage are reduced, and therefore stable supporting and long-term reliable operation of the low-temperature liquid pump rotor are achieved.

The invention relates to the technical field of stress detection equipment, and discloses building steel structural member stress detection equipment which comprises a base, an adjusting ring is fixedly arranged on the base, and a first detection piece for detecting stress at the two ends of a steel structural member is arranged on the adjusting ring; the adjusting ring is provided with a second inspection part for detecting the stress of the middle section of the steel structural part, and the adjusting ring is provided with a pushing part for enabling the steel structural part to move; the J-shaped connecting groove is matched with the pulley, non-impact conversion from horizontal movement to vertical movement is achieved, jumping generated during lifting of the placing piece is avoided, the size design of the avoiding groove provides an independent movement space for the first sensor, the movement interference risk is thoroughly eliminated, sliding friction is converted into rolling friction through bearing matching of the pulley and the rotating shaft, and the stability of the sensor is improved. And through the symmetrical layout of the connecting grooves, the stress on the two sides of the placing piece is balanced, side inclination during lifting is avoided, and it is ensured that the posture of the steel structural piece is stable.

The invention discloses a detachable soft gasket and method for thin plate grinding deformation control. The soft gasket structurally comprises a friction adsorption enhancement layer, a micropore vibration reduction layer and an elastic supporting layer which are detachably connected in sequence from top to bottom. In the soft gasket, the elastic supporting layer provides flexible buffering, the micropore vibration reduction layer absorbs machining vibration through a closed-cell micropore structure, the friction adsorption enhancement layer enhances the adsorption force and stability through non-uniform waveform raised grains and conical grooves, the bottom of the friction adsorption enhancement layer is designed in a sealed mode, grinding fluid permeation is effectively prevented, and all the layers cooperate with one another to improve the machining precision. The soft gasket is designed to be of a multi-layer structure, machining deformation is effectively reduced by providing a positioning reference, and the problems of initial deformation, end face jumping and planeness out-of-tolerance of the thin plate caused by a traditional rigid fixing or adsorption mode can be remarkably solved.

The invention relates to the technical field of robot welding guns, in particular to a robot welding gun neck capable of reducing wire feeding resistance. The robot welding gun neck comprises an outer pipe and an inner pipe, the inner pipe is a special-shaped pipe, a wire feeding channel extending in the axial direction of the inner pipe is arranged on the upper portion of the inner pipe, and a notch is formed in the bottom side of the wire feeding channel; a set of idler wheels are arranged in the wire feeding channel, and welding wires can penetrate through cavities between the idler wheels and the notches. The structural form of the inner pipe and the outer pipe is adopted, the special grooves are designed in the inner pipe to serve as wire feeding channels, the roller sets are placed in the grooves, sliding friction with large resistance in the wire feeding process is changed into rolling friction with low resistance through the roller sets, and therefore the wire feeding stability is improved.

The invention relates to the technical field of belt conveyor rollers, in particular to a transmission roller structure and a belt conveyor thereof, the transmission roller structure comprises a rack, and the rack is connected with a roller body; the driving assembly is used for driving the roller main body to rotate; the friction assembly is used for enhancing the friction force between the belt and the roller; the tensioning force self-adjusting assembly comprises an inertia energy storage mechanism, a vibration energy storage mechanism, a storage mechanism and an adjusting mechanism; and the cleaning assembly is used for cleaning the friction assembly by using the air in the storage mechanism. Inertial energy and vibration energy of roller movement are converted into compressed air to be stored through the inertial energy storage mechanism and the vibration energy storage mechanism, the friction assembly is dynamically adjusted in combination with the adjusting mechanism, self-adaptive adjustment of friction force is achieved, belt slipping is effectively avoided, and the conveying reliability is improved.

The invention provides a plate tension-compression buckling-restrained clamping device and a working method, relates to the field of tension-compression tests, and aims to solve the problem that data errors are easy to introduce by adopting a buckling-restrained structure during compression of a plate in a tension-compression cycle test. The elastic piece acts on the lower clamping plate through elastic force, so that the working area continuously restrains the parallel section of the sample, buckling instability of the parallel section in the thickness direction during compression is prevented, it is guaranteed that deformation is in-plane deformation all the time, the sample slides relative to the working area during tension and compression circulation, and sliding friction force can be reduced through the antifriction layer at the contact position of the lower clamping plate. The constraint force transmitted by the elastic piece is measured by the force sensor in real time, and the data can reflect the constraint strength and potential friction influence, so that subsequent correction of compression deformation data is facilitated, and errors are reduced.

The invention relates to the technical field of structural engineering, in particular to a stable friction damper with segmented positive and negative stiffness characteristics and a modeling method of the friction damper. The friction damper comprises supports, and a pre-compression spring assembly, a lever assembly, a viscoelastic damper assembly and a rotating friction assembly which are arranged between the supports; the pre-compression spring assembly is used for achieving the negative stiffness effect, the lever assembly plays a role in increasing the force and the negative stiffness effect, and the pre-compression spring assembly and the lever assembly form a stable triangular deformation structure. The rotating friction assembly is used for providing friction damping force and guaranteeing the stability of the structure when the pre-compression spring assembly and the lever assembly rotate relatively. The viscoelastic damper assembly is used for applying vibration reduction control force to the structure when small-amplitude vibration of the structure is not enough to drive the friction surface to slide. The invention further provides a corresponding modeling analysis method, and the dynamic behaviors of the device in different working stages are accurately described.

The invention discloses a hot die forging press with a pneumatic friction clutch, which relates to the technical field of hot die forging presses and comprises a machine body, the pneumatic friction clutch, a lower template, an upper template, a lower die, an upper die, a moving mechanism and a spraying mechanism. By arranging the moving mechanism and the spraying mechanism, formed materials can be automatically taken out conveniently, unprocessed materials can be automatically placed into an inner cavity of the lower mold, the material taking and placing process is automatic, a worker does not need to intervene between the upper mold and the lower mold of the equipment for dangerous operation, and production safety is guaranteed while the working efficiency is improved; and in the automatic material taking process, a release agent in a liquid inlet pipe is conveyed into a displacement plate and sprayed out through a spray head, the release agent is automatically sprayed to the lower mold and the upper mold, and the design is convenient for automatically spraying the release agent to the lower mold and the upper mold.

The invention provides a preparation and application method of a solid super-lubricating two-dimensional material, the two-dimensional material is prepared through a one-dimensional amorphous crystal self-stripping layer, the preparation process is very simple and environment-friendly, water can be used as a solvent, low-cost large-scale preparation is easy to realize, and the solid super-lubricating two-dimensional material has very high quality and monolayer property. The two-dimensional material has extremely weak interlayer acting force, shows excellent solid super-lubrication performance, and can realize the super-lubrication behavior that the friction coefficient of a sliding part is lower than 0.01 in an atmospheric environment, and the interlayer adhesive force is 40-80% of that of graphite. The friction wear of the sliding part can be greatly reduced, and the friction material is suitable for various sliding friction parts, such as bearings, sliding blocks and micro-electro-mechanical systems.

The utility model provides a quick-release inclined hoisting device for a foundation pit engineering supporting pipe. Comprising an inclined hoisting body, a fixing assembly used for fixing the foundation pit engineering supporting pipe is arranged on one side of the inclined hoisting body, the distance between two fixing plates can be adjusted by rotating a first threaded rod, and a second threaded rod, a friction block, a limiting rod and a limiting plate are arranged; a second threaded rod is rotated, and a friction block is pushed to move in the direction of the foundation pit engineering supporting pipe through rotation of the second threaded rod, so that the foundation pit engineering supporting pipe is fixed through the two fixing plates, and the foundation pit engineering supporting pipe is further fixed through movement of the second threaded rod and the friction block; and a plurality of grooves are formed in the surface of the friction block, other objects can be better grasped through the rough surface, the friction force is increased, and the fastening effect on the foundation pit engineering supporting pipe is improved.

The utility model aims to provide a novel water cup holder with a 2K clamping jaw matched with a rubber spring for noise reduction. The novel water cup holder is used for solving the problems that an original center control water cup holder is large in noise and poor in stability, and vibration noise generated by vibration friction between the clamping jaw in the water cup holder and a cup stand movement area needs subsequent oil coating treatment. The highlight upper cover plate is connected with the water cup bracket through welding; the 2K clamping jaw is connected with the water cup bracket 4 in a clamping mode, meanwhile, the 2K clamping jaw can rotate around a shaft A on the 2K clamping jaw, and the rubber spring is connected with the 2K clamping jaw in a clamping mode and is clamped in the water cup bracket at the same time. The 2K clamping jaw has the advantages that the 2K clamping jaw has a buffering function, vibration noise generated when a cup and other used articles are fixed can be effectively reduced, and the soft material can guarantee better friction force to achieve the function of stabilizing the articles.

The utility model relates to the technical field of mold guide pillars, in particular to a square guide pillar structure of a mold, which comprises a guide pillar body, a locking mechanism and a connecting mechanism, the center of the surface of the bottom end of the guide pillar body is provided with a first thread groove, and the locking mechanism is provided with a second thread groove. A locking mechanism is installed on the surface of the bottom end of the guide column body and can rapidly assemble and splice the square guide column, so that the square guide column is more convenient to assemble, and a connecting mechanism is installed on the surface of the outer side of the guide column body and adopts a rolling connection mode of rollers. Relative movement between connecting parts is achieved through rolling of the wheels, rolling friction is relatively small, and abrasion and energy loss are easier to reduce compared with sliding friction. According to the utility model, the square guide pillar can be quickly assembled through the matching of the locking mechanism and the connecting mechanism, and more stable and more accurate movement can be provided.

The utility model relates to the technical field of cutting equipment, in particular to a feeding device and a cutting machine, the feeding device comprises a base, a clamping assembly and a guide roller device, the clamping assembly is arranged on the base and used for clamping materials, the guide roller device is arranged on one side of the clamping assembly, and the guide roller device is arranged on the other side of the clamping assembly. The guide roller device comprises a guide roller body and a support assembly, and the support assembly guides the guide roller body to move up and down. In the return stroke process of the feeding device, the guide roller body can be lifted upwards, so that materials are supported, a certain space is generated between the materials and the base, friction between the materials and the base is avoided, friction force between the materials and the base is converted into rotating friction of the guide roller, and the material conveying efficiency is improved. Therefore, the problem that the materials are dragged back in the return process is effectively avoided, the feeding efficiency is improved, and the materials are protected.

The present application relates to the field of plate processing device, specifically to a flexible finishing mechanism, by setting the first and second side of the mold body as a smooth surface, used to guide the smooth entry of the plate, avoiding the sharp collision of the traditional disc mold, solving the problem of easy to produce wave under high speed. By setting the first and second torsional spring, used to provide continuous elastic buffer force, compared with linear spring, torsional spring is not easy to fatigue relaxation under long-term alternating load and easy to adjust the preload, solving the problem of unstable processing effect caused by the performance decline of traditional spring. By setting the first bearing, used to change the sliding friction between the first mold body and the plate into rolling friction, by setting the second bearing, used to change the sliding friction between the second mold body and the plate into rolling friction. At least solve one or more of the deficiencies of the existing finishing mechanism in high speed adaptability, adjustment convenience and long-term stability.

The present invention relates to the technical field of inner circle polishing, and discloses an inner circle polishing device for stainless steel products. The device solves the problem that the existing inner circle polishing device for stainless steel products has poor polishing effect and is inconvenient to complete the polishing operation at one time when facing products with complex inner wall shapes. The device pushes the friction wheel assembly to fit the inner surface of the product through a support assembly. A measuring assembly for detecting the inclination of the inner surface of the product along the forward direction is provided on one side of the support assembly (34). After the inclination of the inner surface of the product is measured by the measuring assembly, the telescopic member is controlled to make the assembly frame tilt accordingly at the corresponding position, so as to promote the friction wheel assembly to fit the inner surface of the product, thereby enabling the friction wheel assembly to automatically perform efficient and high-quality grinding and polishing on the composite surface of the product during movement.

The utility model discloses an electric tool. The electric tool comprises a gearbox, a cutting mechanism, a transmission mechanism, a rolling piece and a driving mechanism. The cutting mechanism comprises a blade; the transmission mechanism is movably mounted in the gear box and comprises a connecting piece connected with the blade; the rolling piece is movably propped between the inner wall of the gearbox and the connecting piece, and the peripheral surface of the rolling piece is in line contact or point contact with the connecting piece; the driving mechanism is connected with the transmission mechanism so as to drive the connecting piece to drive the blade to move. According to the electric tool, the rolling piece movably abuts against the position between the inner wall of the gear box and the connecting piece, a friction plate fixed to the inner wall of the gear box in the prior art is replaced, namely sliding friction in the prior art is replaced with rolling friction, surface contact at the contact position is changed into line contact or point contact, friction force is reduced, and the service life of the electric tool is prolonged. Heat generation is reduced, the service life of the rolling piece is prolonged, and the use cost of the electric tool is reduced.

The utility model relates to a flying shear outlet guide groove for high-speed wire rod production, and belongs to the technical field of flying shear outlet guide grooves. Comprising a guide groove body. According to the guide groove, the steel falling groove is matched with the inclined plate, when a sheared head is too short and the length of the sheared head cannot reach the second outlet, the sheared head can fall into the waste hopper through the steel falling groove at the moment, and therefore the phenomenon that the sheared head is left in the guide groove body to cause jamming to a rolled piece which normally passes subsequently is avoided. The steel falling groove provides enough falling space for the sheared head of the rolled piece, and the inclined plate can ensure that the sheared head falls in the inclined direction of the inclined plate. By arranging the small-size triangular guide, the length of an original triangular guide is shortened, and the risk that a rolled piece collides with the small-size triangular guide in the running process is effectively reduced. By arranging the transverse rollers, traditional sliding friction is changed into rolling friction, the friction resistance between a rolled piece and the bottom plate is effectively reduced, and abrasion is reduced.

The invention relates to the technical field of strip steel plate machining, in particular to a limiting device capable of reducing edge abrasion, which comprises a fixed seat, a sliding seat arranged on one side of the fixed seat, detachable bearing seats symmetrically arranged on the outer walls of the upper end and the lower end of the sliding seat, and a vertical guide roller rotationally connected between the two groups of bearing seats. According to the limiting device capable of reducing edge abrasion, in the using process of the limiting device capable of reducing edge abrasion, when the limiting device capable of reducing edge abrasion is used, the edge of a steel plate is in rolling contact with a vertical guide roller, and therefore the edge of the steel plate is prevented from being abraded; the rotation of the vertical guide rollers converts traditional sliding friction into rolling friction, the abrasion degree of the edge of the steel plate and the limiting device is greatly reduced, through the rolling contact design of the vertical guide rollers, the sliding friction of the edge of the steel plate and the limiting device is converted into rolling friction, and the abrasion rate of the edge of the steel plate and the limiting device is remarkably reduced. And meanwhile, the edge loss of the to-be-centered steel plate is reduced.

The present invention discloses a drag-reducing and friction-reducing bionic texture for wading, comprising a base material and a plurality of bionic protrusions provided on the surface of the base material. The bionic protrusions are generally fan-shaped columns, and a curved groove is provided downwardly at the top of the fan-shaped column. The curved groove has a concave steep slope on the side close to the axis of the fan-shaped column, and a concave gentle slope on the side close to the arc surface, forming a vortex groove as a whole. The intersection of the plane passing through the axis of the fan-shaped column and the curved groove is defined as a longitudinal section. All longitudinal sections of the fan-shaped column are the same. The top curve of the longitudinal section is a concave steep slope curve near the center of the fan-shaped column, and a gentle slope curve on the other side. Because the curved groove has a significant vortex effect, the drag-reducing and friction-reducing bionic texture can form a vortex in the seawater environment by flowing seawater, thereby forming a roller effect, converting sliding friction into rolling friction, and enhancing the fluid dynamic pressure effect, with a friction coefficient reduction rate of more than 60%.

The utility model relates to a continuous beam swivel spherical hinge device, which belongs to the technical field of bridge construction, and comprises an upper spherical hinge, a lower spherical hinge, a rotating ball and a positioning shaft, the rotating ball is connected with the lower spherical hinge, one side of the lower spherical hinge facing the upper spherical hinge is provided with an accommodating groove, the rotating ball is arranged in the accommodating groove, and the rotating ball protrudes out of the accommodating groove and is in rolling connection with the upper spherical hinge; the rotating ball is arranged between the upper spherical hinge and the lower spherical hinge, the positioning shaft is arranged on the lower spherical hinge and extends out of the lower spherical hinge to be connected with the upper spherical hinge, and the positioning shaft is located on the same central axis of the lower spherical hinge and the upper spherical hinge. In order to prevent the upper spherical hinge from intensively acting on the lower spherical hinge, the rotating shaft is arranged to enable the upper spherical hinge to uniformly act on the lower spherical hinge, so that the friction force in the rotating process is uniformly distributed, the rotation is smooth, and the friction force in the transferring process is further reduced.

This utility model discloses a displacement-amplified composite friction damper. The upper connecting plate has three sets of equidistant axial connecting ends at its bottom; three sets of equidistant extension plates are located above the core plate, and friction shear components are installed on both sides of the core plate; a lever plate is installed between the axial connecting ends and the extension plates; connecting shafts pass through the axial connecting ends and the extension plates respectively to reinforce the installation of the lever plate; large side plates are fixed at both ends of the lower connecting plate, and the large side plates are tightly fitted to the core plate through the friction shear components. After being amplified by the lever plate, the relative displacement between the upper and lower connecting plates will be greater than the displacement generated by the original building structure. In the small displacement stage: the vulcanized rubber layer absorbs energy through elastic deformation, and the friction plates and steel plates remain relatively stationary, achieving low-frequency vibration isolation. In the large displacement stage: when the vulcanized rubber layer reaches its deformation limit, the steel plate and friction plates begin to slide and rub, significantly improving energy consumption efficiency and adapting to extreme conditions such as earthquakes. The overall structure is simple and easy to install.

The invention discloses a high-stability PE film continuous blow molding production device, and belongs to the technical field of blow molding production device.The high-stability PE film continuous blow molding production device comprises a device body, a moving mechanism is connected to the outer portion of a rotating shaft, and a limiting mechanism used for limiting a first scraper is connected into a supporting frame; the exterior of the supporting frame is connected with an opposite mechanism, and a driving mechanism used for driving the inclined plate to incline is installed in the device body. Rapid disassembly-free cleaning of the first roll shaft is achieved through the moving mechanism, a bidirectional lead screw is used for driving a sliding block to drive a first scraper to abut against the roll shaft, residues are removed in combination with rotation friction of the first roll shaft, productivity reduction caused by disassembly shutdown is effectively avoided, and the technical problem that a traditional cleaning mode is long in time consumption is solved; a first support and a fixing shaft of the limiting mechanism are matched with a sliding plate, the first scraper is precisely guided, it is ensured that the cleaning process is stable, the roller shaft is prevented from being damaged, and the service life of equipment is prolonged.

The invention discloses an anti-wear strain clamp, and relates to the technical field of strain clamps. The invention aims to solve the technical problem of electric leakage and short circuit caused by abrasion and fracture of an outer layer of a wire due to swinging and friction of the wire in a traditional wire clamp. The device comprises a lifting part, a clamping part and a force unloading assembly which are integrally formed, a U-shaped lock is arranged outside the clamping part, and the lower end of the U-shaped lock is movably connected with a clamping block; the force unloading assembly comprises a lining movably connected to the interior of the clamping part, first sliding blocks are fixed to the two sides of the lining, and first sliding grooves matched with the first sliding blocks are formed in the inner walls of the two sides of the clamping part. A second sliding block is fixed to the upper end of the clamping block, a second sliding groove matched with the second sliding block is formed in the lower end of the U-shaped lock, and the side edge of the clamping block is subjected to rounding treatment. According to the technical scheme, sliding friction between the wire and the clamping part is transferred into relative movement between the lining and the clamping part, and the friction mode between the clamping block and the wire is converted into rolling friction, so that the abrasion probability of the wire is remarkably reduced, and the safety of the fixed wire is ensured.

The utility model provides a round-bar-shaped material conveying device with a material rolling function, which comprises a conveying mechanism, a plurality of round-bar-shaped material placing grooves are sequentially arranged on the conveying mechanism along the conveying direction of the conveying mechanism, and the width of the round-bar-shaped material placing grooves in the material conveying direction is larger than the diameter of round-bar-shaped materials. A material rolling plate is further fixedly arranged on the conveying path of the round-rod-shaped materials. The upper surface of the rolling plate is provided with at least one upslope section inclining upwards in the material conveying direction, the horizontal height of the lower end of the upslope section is larger than or equal to the horizontal height of the groove bottom of the round-bar-shaped material containing groove and smaller than the horizontal height of the upper end of the upslope section, and the upper end of the upslope section is lower than the upper edge of the groove wall of the round-bar-shaped material containing groove. The upslope section is provided with a section of slope surface which is higher than the groove bottom of the round-rod-shaped material containing groove and forms rolling friction with materials, and the length of the section of slope surface is larger than or equal to the perimeter of the round-rod-shaped materials. According to the utility model, the material can roll in the conveying process, so that the peripheral surface of the round bar-shaped material can be comprehensively observed and detected.

The invention relates to a prefabricated building wallboard connecting piece capable of dissipating energy and a prefabricated building wallboard, the prefabricated building wallboard connecting piece comprises a plurality of first connecting pieces and a plurality of second connecting pieces, and the first connecting pieces and the second connecting pieces are arranged at the top of the wallboard and used for connecting the wallboard and an upper floor beam slab; the first connecting piece comprises a first supporting groove and a first supporting piece, the first supporting piece is matched with the first supporting groove in an inserted mode, and the first connecting piece is configured to be in sliding friction between the first supporting groove and the first supporting piece and generate friction damping when the upper floor beam plate and the wall plate are relatively close to each other; the second connecting piece comprises a second supporting groove and a second supporting piece, the second supporting piece is matched with the second supporting groove in an inserted mode, and the second connecting piece is configured to be in sliding friction between the second supporting groove and the second supporting piece and generate friction damping when the upper floor beam plate and the wall plate are relatively away from each other; the two connecting pieces generate friction damping in the vertical direction and the horizontal direction.

The utility model provides a kind of pulley for heat exchanger internal support plate, belong to heat exchanger support plate technical field.Solve the prior art, the edge of support plate and the inner wall of shell are directly contacted and produce sliding friction, which leads to low operating efficiency and causes scratches on the inner wall of shell, even permanent damage.The utility model discloses a plurality of slides, the plurality of slides are circumferentially arranged at the edge of support plate, the inner side of slide is connected with the edge of support plate, the outer side of slide is rotatably connected with roller, and the roller is rolling fit between the inner wall of heat exchanger shell.It is mainly used for the assembly of support plate during the manufacture and repair of heat exchanger.

This utility model relates to the field of pipe processing technology and discloses an inlaid roller mold for preventing damage to the surface of pipe fittings during bending. The mold includes a base, a mounting plate fixedly mounted on the top of the base, an L-shaped plate fixedly mounted on the top of the mounting plate, a cylinder fixedly mounted on the top of the base, two bending rollers symmetrically arranged on the front side of the L-shaped plate, an adjustment component on the rear side of the L-shaped plate, and a lifting component at the output end of the cylinder. This utility model avoids sliding friction between the mold and the pipe fitting by using rollers to contact the pipe fitting surface, thus preventing surface damage. Furthermore, the rollers act as guides during bending, ensuring the pipe fitting moves along a preset bending path. The rollers also distribute the concentrated pressure during bending to multiple contact points, preventing localized deformation or damage to the pipe fitting. The distance between the two bending rollers can be adjusted to accommodate different bending sizes.