272results about How to "Avoid bumping" patented technology

This invention discloses an automatic material stacking system for shaft components in a mesh belt isothermal normalizing furnace, relating to the technical field of shaft component stacking equipment. It includes a stacking platform with a hinge structure. The two halves of the hinge are rotatably connected by a rotating shaft. The two ends of the rotating shaft slide up and down along second guide rails. Two second guide rails are fixedly connected to both sides of the stacking frame. Each half of the hinge is fixedly connected to two traction ropes. The two traction ropes of the left half of the hinge are wound around two third rollers, and the two traction ropes of the right half of the hinge are wound around two first rollers. A third motor drives the two first rollers and the two third rollers to rotate synchronously. The rotating shaft is connected to two traction ropes, which are wound around two second rollers. A second motor drives the two second rollers to rotate synchronously. The stacking platform opens, closes, and rises and falls under the action of the traction ropes. A material frame is located below the stacking platform. This invention has a simple structure, is easy to operate, can replace manual stacking, save labor, and improve production efficiency.

The utility model discloses an aluminum ingot demolding anti-collision device which comprises an aluminum ingot mold conveying mechanism, a plurality of aluminum ingot molds distributed at equal intervals are arranged on the aluminum ingot mold conveying mechanism in the path direction of the aluminum ingot mold conveying mechanism, and an aluminum ingot receiving mechanism is arranged below the output end of the aluminum ingot mold conveying mechanism. The aluminum ingot die conveying mechanism and the aluminum ingot receiving mechanism are driven by a driving mechanism at the same time, and the aluminum ingot receiving mechanism comprises a rack. According to the aluminum ingot mold, the demolded aluminum ingots can be separated from one another and cannot collide with one another to cause damage, the two sides of the aluminum ingots can be limited through the grooves, and the supporting plate is made of rubber materials, so that when the aluminum ingots fall onto the supporting plate, rigid collision cannot be generated, and a good buffering effect is achieved.

The present disclosure provides a transport vehicle for transporting a heater, comprising a vehicle frame, a fixing plate is arranged on the vehicle frame, a circular groove for accommodating a ring-shaped heater is arranged on the fixing plate, a plurality of fixing columns are arranged in the circular groove, and each fixing column can clamp the ring-shaped heater with the inner circumferential surface of the circular groove. In the present disclosure, the heater is clamped between each fixing column and the circular groove and the fixing plate to limit the relative position of the heater and the fixing plate, so as to avoid the heater from falling off or sliding off the fixing plate during the movement of the transport vehicle. Therefore, the present disclosure avoids the problems of employee scalding and heater bumping or damage during the traditional carrying process, thereby reducing the maintenance time and cost caused by equipment damage and improving the overall carrying efficiency.

The utility model discloses a kind of feeding and discharging devices for sorting, it is related to sorting equipment field, including base, base top is provided with roll lever conveyor and roll lever sorting machine, the feed end of roll lever conveyor is provided with feeding hopper, feeding hopper is fixed in base top, chute is opened on the two side walls of feeding hopper, feeding hopper is provided with poking mechanism inside, poking mechanism includes two mounting seats, mounting seat is slidably connected in chute, rotatingly connected with poking shaft between two mounting seats, poking plate is fixedly connected on poking shaft, the mounting seat of one side is fixedly connected with motor, the output end of motor is fixedly connected with poking shaft. Advantageous effect lies in: the rotation of poking plate is utilized when feeding, so that apple can only be moved to roll lever conveyor in single layer form, avoid apple stacking on roll lever conveyor, so as to avoid apple rolling and produce knock, reduce the damage rate of apple.

This application relates to a connection structure between the car frame and the car bottom of a backpack frame lifting platform, including a car bottom welding assembly and a lower beam welding assembly. The car bottom welding assembly includes a car bottom plate and several connecting vertical tubes disposed within the car bottom plate. The lower beam welding assembly includes a support frame, lower beam cantilever arms disposed on both sides of the support frame, bottom angle steel disposed on the lower beam cantilever arms, connecting side tubes disposed on both sides of the support frame and connected to the bottom angle steel, and at least one connecting central tube disposed in the middle of the support frame. The connecting central tube, connecting side tubes, and connecting vertical tubes are detachably connected. By setting up the car bottom welding assembly, the lower beam welding assembly, and the detachably connected connecting vertical tubes, connecting side tubes, and connecting central tubes, a split splicing connection between the car frame and the car bottom is achieved, thereby avoiding the wear and damage problems caused by integral structures during transportation, and making installation, maintenance, and parts replacement more convenient, solving the problem of lack of flexibility in the integral connection structure of the prior art.

The utility model belongs to the technical field of cabin door hinges, and particularly relates to a new energy pure electric rear cabin door hinge which comprises a hinge base and a hinge rod body, the hinge rod body is formed by combining a straight-line-section rod body, a bent-section rod body and an inclined-section rod body, and the hinge rod body is formed through extrusion of a die-casting die. A first locking adjusting opening is formed in the surface of the linear section rod body, and a hinge groove is formed in one end of the bent section rod body. According to the new energy pure electric rear cabin door hinge, firstly, through precise design of a lubricating system, continuous lubrication of the hinge is ensured, abrasion is remarkably reduced, the service life is prolonged, and the reliability of the hinge is improved; secondly, excellent sealing performance is provided through the combination of the sealing ball and the sealing ring, leakage of lubricating oil is effectively prevented, cleanliness of the system is kept, and maintenance cost is reduced; in addition, according to the design, the environmental adaptability is improved, meanwhile, the user experience is improved, noise and vibration are reduced, and the attractiveness of the vehicle is kept.

The application provides an automatic flame polishing method for a quartz wafer, which comprises the following steps: placing a quartz wafer to be polished on a clamp, wherein the clamp comprises a roller provided with a groove, and the edge of the quartz wafer is placed in the groove; controlling a polishing gun to be aimed at the surface of the quartz wafer; and controlling the polishing gun to spray a flame and automatically polish the quartz wafer according to a set moving track while the roller drives the quartz wafer to rotate. Compared with traditional manual polishing, the method has high efficiency, stable polishing, uniform appearance of the polished quartz wafer, and good consistency, so that the processing yield is improved. Moreover, the quartz wafer is driven to rotate by the roller, so that the bumping problem caused by repeated clamping during the polishing process of the quartz wafer is avoided.

The utility model belongs to the technical field of aluminum profiles, and particularly relates to an efficient traction device for aluminum profile production, which comprises a conveying frame, a servo motor is fixedly mounted on one side of the conveying frame, a rotating rod is connected to the output end of the servo motor, and a conveying belt is connected to the surface of the rotating rod. A fixing frame is fixedly installed on one side of the top of the conveying frame, and a motor is fixedly installed on one side of the fixing frame. After one end of an aluminum profile is fixed, a motor is started to drive a sliding block to move through a lead screw, the moving sliding block can drive the aluminum profile clamped and fixed in a protective shell to move, the extruded and formed aluminum profile is pulled out, and in the pulling process of the aluminum profile, an electric push rod is started to drive a lifting plate to do lifting motion; and the lifting plate can make contact with the bottom of the drawn aluminum profile, the other end of the aluminum profile is lifted, the situation that the other end of the drawn aluminum profile deviates and collides is avoided, and the aluminum profile drawing effect is improved.

The utility model provides a multifunctional double-cavity vacuum coating device which comprises a spraying chamber and a vacuum coating chamber, the vacuum coating chamber is arranged at the top of the spraying chamber, and the vacuum coating chamber is communicated with the spraying chamber through a through hole. A rotating frame is arranged in the spraying chamber, the rotating frame is connected into the spraying chamber through a guide column, the guide column is vertically connected into the spraying chamber, the rotating frame is in driving connection with a driving device, and the driving device drives the rotating frame to ascend into the vacuum coating chamber for vacuum coating. According to the utility model, priming paint coating, vacuum coating and finishing paint coating are integrated into one device, so that workpiece carrying is reduced, workpiece collision is avoided, the surface quality of workpieces is improved, and the production efficiency is improved. The spraying chamber and the vacuum coating chamber which are arranged up and down can reduce the occupied area of equipment, and the rotating frame keeps rotating at a constant speed in the spraying process, so that spraying is more uniform, and the quality of workpieces is improved.

The utility model relates to a water circulation device and a fish tank, and aims to provide higher ornamental value while circulating filtration of water, the device comprises a container, a base, a suction part and a water feeding pipe, the bottom of the container is provided with a water outlet and a water feeding port, the suction part conveys the water at the bottom of the container to the upper part through the water feeding pipe, and circulating flow of the water is realized. A supporting piece is arranged at an opening of the container, plant landscaping or a filtering medium can be used for filtering and purifying a water body, meanwhile, nutrients are provided for aquatic plants, a mutualistic ecological system is formed, the base protects the container and accommodates the suction piece, the structure is simple, and maintenance is easy. And the design of the detachable butt joint piece facilitates cleaning and later maintenance.

The utility model discloses an intelligent cleaning robot with a flexible anti-collision device, which comprises an intelligent cleaning robot main body, and a support framework is sleeved on the outer wall of the intelligent cleaning robot main body. When the flexible anti-collision intelligent cleaning robot is used, the outer wall of the intelligent cleaning robot body is sleeved with the supporting framework, and the elastic buffering effect of the anti-collision annular air bag pieces which are arranged at the top and the bottom of the supporting framework and are in the protruding state is utilized, so that the intelligent cleaning robot body can achieve good flexible anti-collision protection on dynamic obstacles; according to the intelligent cleaning robot, collision injury to people or animals caused by the intelligent cleaning robot can be avoided, an annular rubber strip is embedded in the outer side wall of an anti-collision annular air bag piece, an annular piezoresistor is installed in the annular rubber strip, when collision occurs, the anti-collision annular air bag piece is pressed in a certain direction, the resistance value of a corresponding area is changed, and the collision damage to the human body or animals is avoided. And the collision direction is positioned and the collision strength is determined by calculating and analyzing the current difference through the controller.

The invention discloses a pipeline welding butt joint device, and belongs to the technical field of hydraulic engineering pipeline welding. The pipeline butt joint mechanism is arranged at the upper end of the carrying plate and comprises a sliding rail, two axial limiting assemblies and a double-end lead screw, and the two axial limiting assemblies are symmetrically installed on the sliding rail in a sliding mode and used for clamping and axially limiting the welding end of a pipeline; the two ends of the double-end lead screw are in threaded fit with the two axial limiting assemblies correspondingly. The pipeline rotating mechanism is arranged at the upper end of the carrying plate and comprises two circumferential limiting assemblies, and the two circumferential limiting assemblies are symmetrically arranged and used for clamping and rotating the non-welding end of a pipeline; through the overall structure arrangement, stable placement of the pipeline is completed, continuous and stable rotation of the pipeline in the circumferential direction is achieved, the problems of uneven rotating speed, shaking and deviation caused by manual rotation of the pipeline are avoided, and the circumferential weld forming quality and welding consistency are remarkably improved.

The utility model discloses an unmanned plane landing anti -thrust device belongs to unmanned plane technical field, the device is in the abdomen of large fixed wing unmanned plane, including anti -thrust board and two groups of drive adjusting mechanism, the anti -thrust board is paddle formula arc structure, and the bottom surface is equipped with longitudinal fairing and is made with carbon fiber composite material, and the angle on the board is equipped with pressure sensor, drive adjusting mechanism contains support, connection hanging cylinder, drive assembly, axle seat, connecting seat and connecting rod assembly, can drive anti -thrust board and realize 0 degree 90 degree angle adjustment, and sensor feedback signal reaches controller, and controller receives unmanned plane flight system landing information and controls motor, forms closed loop control. The device utilizes the airflow to generate the reverse thrust and shortens the brake distance, and the anti -thrust board is horizontal when not working and does not influence the flight, and is light in weight, and the adjustment is accurate, and is convenient to maintain, is applicable to the safe landing of large fixed wing unmanned plane.

The application discloses a multifunctional antibacterial coating bone implant device based on a selective vacuum perfusion process and a preparation method thereof. The method comprises the following steps: 1) pretreating a titanium alloy base; 2) performing anodic oxidation treatment on the pretreated titanium alloy base to construct a nanotube structure on the surface of the titanium alloy base; 3) selectively coating the treated titanium alloy base with a hydrogel adhesive, then immersing the titanium alloy base in a povidone iodine mixed solution to perform vacuum perfusion, and performing post-treatment, then again performing selective coating, immersing the titanium alloy base in a solution containing a bone growth promoting factor to perform vacuum perfusion, and performing post-treatment, then again performing selective coating, immersing the titanium alloy base in a solution containing a blood vessel growth promoting factor to perform vacuum perfusion, and performing post-treatment; and 4) encapsulating the obtained sample surface with an in-situ self-polymerized polydopamine layer, washing and freeze-drying. The bone implant device has antibacterial, bone growth promoting and blood vessel growth promoting functions, and can greatly improve the curative effect on bone fracture symptoms accompanied by infection.

The utility model discloses an automatic rotating floating adjusting device for an automobile door of an automobile assembly line, which relates to the field of automobile assembly and comprises a support frame, a lifting platform is arranged at the top end of the support frame in a lifting manner, a first rotating shaft is rotatably connected in the lifting platform, and clamping hands for clamping the automobile door are arranged at two ends of the first rotating shaft. Telescopic mechanisms are arranged in the two clamping hands, at least two shaft sleeves are fixed to the outer side of the first rotating shaft, connecting arms are fixed to the outer sides of the two shaft sleeves, the connecting arms are supported at the bottom end of the vehicle door, and a pressure sensor is embedded in the lower surface of the lower pressing plate, so that the clamping force can be monitored in real time, and it is ensured that the vehicle door cannot be damaged due to improper force in the clamping process; and the telescopic mechanism can be adaptively adjusted according to the thicknesses of different vehicle doors, the application range is wider, high-precision positioning and angle adjustment of the vehicle doors can be achieved through the automatic rotating and telescopic adjusting mechanism, perfect matching of the vehicle doors and a vehicle body is ensured, and the assembly quality is improved.

The utility model belongs to clutch placement technical field especially is a kind of clutch rack, including base, the top of base is fixedly connected with four support rods, two placing plates are fixedly connected on four support rods, the top of placing plate and base is all fixedly connected with multiple placing table, the top of placing table is movably placed with clutch body, positioning clamping mechanism is arranged between the placing table and clutch body, the bottom of base is rotatably connected with four universal wheels, supporting fixed mechanism is provided on the base. The utility model structure design is reasonable, by the combination linkage of positioning column, pressing plate and two arc clamps, the positioning clamping fixation of clutch body up and down and left and right can be carried out, avoid the risk that the jolt of moving makes clutch body knock and fall, improve the stability and security when clutch body shifts.

The utility model discloses a waterproof coiled material automatic stacking machine capable of preventing a waterproof coiled material from rolling, belongs to the technical field of waterproof coiled material stacking, and solves the problems that in the overturning process of a bearing frame of an existing device, the waterproof coiled material can roll in the bearing frame, then the waterproof coiled material rolls into a storage box from the bearing frame, and the waterproof coiled material cannot be stored in the storage box. The waterproof roll stacking device comprises a lifting transmission belt, a conveying table is arranged on the right side of the lifting transmission belt, a linear driving assembly is arranged on the left side of the lifting transmission belt, a bearing frame is placed below the linear driving assembly, and a stacking assembly is assembled on the linear driving assembly; and the stacking assembly comprises a mounting plate, a connecting plate, a guide frame, a first hydraulic rod, a hinge seat, a rotating plate, a rotating roller, a shaft rod and a double-shaft hydraulic rod, so that the waterproof coiled materials vertically fall off, the falling distance of the waterproof coiled materials is shortened, the situation that the waterproof coiled materials roll in the bearing frame is avoided, and then the situation that the waterproof coiled materials are damaged due to collision is avoided.

The utility model relates to the technical field of metal mold rust removal, in particular to a metal mold surface rust removal device which can enlarge the operation space when a placing frame is taken and placed, prevent the operation space from being limited and prevent personnel and a metal mold from being collided. Comprising a rust removal barrel, the bottom of the rust removal barrel communicates with a discharge pipe, a control valve is arranged on the discharge pipe, a placement frame is placed in the rust removal barrel, a plurality of placement grooves are formed in the placement frame, two sets of grips are symmetrically arranged at the top end of the placement frame, and two sets of supporting plates are symmetrically and fixedly welded to the lower portions of the outer walls of the left end and the right end of the rust removal barrel. T-shaped supporting seats are fixedly connected to the outer sides of the two sets of rotating shafts correspondingly, electric push rods are fixedly installed on the two sets of T-shaped supporting seats correspondingly, the output ends of the two sets of electric push rods are fixedly connected with T-shaped bolts correspondingly, the two sets of T-shaped bolts are inserted into the positioning holes of the two sets of supporting plates correspondingly, and electric telescopic rods are fixedly installed on the two sets of T-shaped supporting seats correspondingly and used for metal mold rust removal.

The application provides a horizontal food steaming and sterilizing pot, and belongs to the technical field of steaming and sterilizing pots, which comprises a horizontal pot body and a lower pot seat mechanism, the lower pot seat mechanism is installed at the bottom of the outer side wall of the horizontal pot body, and one end of the horizontal pot body is provided with a sealing cover mechanism; the lower pot seat mechanism is started to move downward, the bottom of the steaming and sterilizing pot is opened, the height of the lower pot seat mechanism is leveled with the ground, the sterilizing rack loaded with food is directly pushed onto the lower pot seat mechanism, then the lower pot seat mechanism is reset by being started again, the sealing cover mechanism is started to buckle and fix between the horizontal pot body and the lower pot seat mechanism, the feeding and sealing operations can be completed, the demand for manpower and the bracket type transfer tool is reduced, the feeding and discharging operation efficiency is improved, manual pushing operation is not needed, the manpower consumption is further reduced, and the inner wall of the sterilizing pot can be effectively prevented from being bumped during the pushing process.

This application discloses a method for obstacle crossing of a self-moving device and the self-moving device itself. The self-moving device includes a device body and a robotic arm connected to the device body. The robotic arm includes an operating structure, a working arm, and a joint assembly. The operating structure, the working arm, and the device body are connected via the joint assembly. The obstacle crossing method of the self-moving device includes: if a target obstacle is detected, defining a support area on the upper surface of the target obstacle; controlling the joint assembly to rotate so that the operating structure contacts the support area, and using the operating structure as a fulcrum to lift the device body; controlling the joint assembly to rotate to drive the device body to rotate, so that the device body is positioned on the upper surface of the target obstacle. For obstacles that cannot be directly crossed by the walking component, crossing the target obstacle can be achieved by supporting and lifting the device body with the robotic arm.

The utility model relates to the technical field of twill roll rotary discharging devices, and discloses a twill roll rotary discharging device which comprises supporting legs, a base fixedly connected to the upper sides of the supporting legs, a rolling table fixedly connected to the upper side of the base, cloth fixedly connected to the rolling table, supporting rollers fixedly connected to the upper surface of the base and a rotary discharging box. A flattening mechanism and a spreading mechanism are arranged on the upper side of the base, the flattening mechanism is arranged on one side of the spreading mechanism, the flattening mechanism comprises a support, the support is fixedly connected to the upper surface of the base, the flattening mechanism is used for flattening cloth, a user can conveniently cope with more use scenes, the mechanism can adjust the distance between rotating rods, and therefore the cloth can be flattened. The flattening mechanism is used for flattening cloth, so that the flattening force can be adjusted, the spreading mechanism is used for turning over and spreading the cloth during discharging, manual turning operation of workers is replaced by the mechanism, the cloth cannot be gathered during turning through cooperation between spiral blade rods, and the device can run for a long time.

This utility model relates to the field of DC servo driver technology, specifically a DC servo driver, including an interface panel, conductive posts, a housing, a conductive cylinder, a limiting strip, a heat dissipation area, a heat sink, a circuit module mounting plate, a circuit module, a reinforced limiting frame, a limiting groove, threaded holes, and fixing bolts. This utility model has an ingenious structure; the reinforced limiting frame limits the housing, effectively preventing damage to the circuit module during installation and removal, protecting internal components. The device can be fixed with only one bolt, greatly simplifying installation and disassembly compared to the traditional method of using multiple screws, improving maintenance efficiency. Heat sinks are provided on both sides of the housing, working in conjunction with the heat dissipation area on the side plates to accelerate heat dissipation, effectively improving the device's heat dissipation capacity, ensuring stable operation within the normal temperature range, and extending the device's service life.

The invention relates to the technical field of coating spraying detection, and particularly discloses an external wall heat insulation coating spraying detection device based on an overhead working truck, which comprises a truck body, an extension arm is arranged on the truck body, a horizontal adjusting platform is rotatably arranged at the end part, far away from the truck body, of the extension arm, and a mounting platform is rotatably mounted on the horizontal adjusting platform; an adjusting mechanism is arranged on the horizontal adjusting platform, a detection cylinder is arranged on the mounting platform, and a detection assembly is arranged in the detection cylinder; after the operation vehicle body moves to the position below the detection area, the extension arm is controlled to extend the tail end to the target height, the mounting platform is driven to rotate through the adjusting mechanism on the horizontal adjusting platform so that the mounting platform can be kept perpendicular to the wall surface, and then the detection cylinder on the mounting platform is controlled to be close to the wall surface; and detecting the micro-porosity of the coating by using an internal detection assembly.

The utility model relates to the technical field of thread protector machining, in particular to a thread protector discharging and conveying device which comprises a rack, and the rack comprises a transverse part and a lifting part. A first roll shaft is arranged at the end of the transverse part, a motor for driving the first roll shaft is arranged on the rack, a second roll shaft is arranged at the joint of the transverse part and the lifting part, a third roll shaft is arranged at the end of the lifting part, and first limiting ring grooves are formed in the two ends of the first roll shaft, the two ends of the second roll shaft and the two ends of the third roll shaft correspondingly. A conveying belt surrounds the outer sides of the first roller shaft, the second roller shaft and the third roller shaft, the two ends of the conveying belt are provided with limiting strips in concave-convex fit with the first limiting ring grooves correspondingly, and the two sides, located over the second roller shaft, of the rack are rotationally connected with limiting wheels pressed on the conveying belt correspondingly. By means of the mechanical conveying mode, the discharging and transferring efficiency of the thread protector is effectively improved.

The utility model relates to the technical field of vacuum simulation components, and discloses a vacuum experiment environment simulation device which comprises a vacuum tank and a tank door, a protective inner tank for collecting detection objects is arranged in the vacuum tank, a plurality of symmetrically arranged supporting seats are mounted on the inner side of the vacuum tank, and mounting seats are mounted on the periphery of the protective inner tank. Firstly, the protective inner tank is horizontally placed in the vacuum tank, the mounting base on the periphery of the protective inner tank is clamped into the supporting groove to slide in a matched mode, the rail wheel on one side of the sleeving mechanism can slide in the rail groove in a supporting mode, the protective inner tank is pushed into the vacuum tank in a sliding mode, and a detection material is directly placed in the protective inner tank; when the device is used, exploded material scraps can be blocked and collected by the protective inner tank, so that the protective inner tank can be directly and horizontally slid and pulled out for cleaning during subsequent residual material cleaning, the cleaning operation is convenient and rapid, continuous experiment use is facilitated, and the working efficiency of the device is improved.

The utility model discloses a kind of hoisting bucket lever's tool, it is related to excavator technical field, when hoisting bucket lever is carried out to the background technology proposed, it is easy to cause bucket lever to deviate under the action of gravity, cause bucket lever to knock, the problem of low practicality, present and propose the following scheme, including installation mechanism being set to the upper portion of bucket lever, installation mechanism includes mounting seat, the connecting block of triangle and the abutment plate being fixed to the bottom one side outer wall of mounting seat, two suspension assemblies are equipped on mounting seat, two sides of mounting seat bottom are equipped with connecting component, connecting component includes the mounting plate being fixed to the bottom outer wall of mounting seat, the cylinder being connected on the one side outer wall of mounting plate by bolt and the clamping post being fixed to the one end outer wall of cylinder piston rod, adjusting component is equipped in mounting seat bottom. The utility model can support bucket lever when hoisting bucket lever, prevent bucket lever from deviating and knocking under the action of gravity, improve practicality.

The utility model relates to the section bar processing technical field, concretely is a kind of stacking machine for section bar production, including mounting bracket, the top of mounting bracket is fixedly installed with track piece, mounting bracket is fixedly installed with material receiving guide plate above track piece, multiple stacking assemblies are equipped on track piece, the lowest part of the top of track piece is close to material receiving guide plate and is provided with recess for stopping the stacking assembly of not full load, and buffer material receiving assembly for layer-by-layer subsidence material receiving and let stacking assembly full load after separating from recess is equipped on stacking assembly;By setting stacking assembly, buffer material receiving assembly and elastic component, utilize multiple stacking assemblies to sequentially complete moving, material receiving and separation process, realize the continuous stacking of section bar, when material receiving, the buffering effect of layer-by-layer subsidence can be formed, avoid the knock or extrusion deformation of section bar due to the too big drop, and elastic parameter is adjustable, can be adapted to section bar of different weight, size, satisfy diversified production demand, improve equipment versatility.

This utility model discloses a trolley shifter for transporting tunnel boring machines (TBMs), relating to the field of tunnel construction equipment technology. It includes a drive assembly, a shifter assembly, a limit stop assembly, a circular link chain, a driven housing, and a shifter moving frame. The shifter moving frame is fixed to the rear trolley of the TBM. The drive assembly and the driven housing are respectively fixed to both ends of the shifter moving frame. The shifter assembly is located above the shifter moving frame and is rolledly connected to the upper surface of the shifter moving frame. The circular link chain connects to both sides of the shifter assembly and surrounds the drive assembly and the driven housing. The limit stop assembly is located below the shifter moving frame on the side closest to the drive assembly and is fixed to the rear trolley of the TBM. By setting the limit stop assembly, this utility model can stop the transport train after it reaches the shifter's position to prevent it from exceeding the shifter's working range. It also prevents material from falling onto the trolley during the TBM's muck transport system's material unloading process.