187results about How to "Avoid friction" patented technology

The utility model provides a mechanical sealing element, which belongs to the technical field of mechanical sealing elements and comprises a sealing rotor and a static ring, the sealing rotor is fixed on a rotating shaft, the static ring is fixed on an equipment shell, a plurality of grooves are circumferentially arranged at one end of the static ring, limiting elements are mounted in the grooves, and the limiting elements are fixed on the static ring. The limiting piece is used for being connected with an equipment shell and limiting axial rotation of the static ring. The groove is formed in the end of the static ring, the limiting piece protruding outwards is installed in the groove and used for connecting the static ring with the equipment shell, the limiting piece and the equipment shell are fixed in an interference mode, and the stability of the static ring is improved.

The invention is suitable for the technical field of communication antenna installation, and provides a device for adjusting the declination angle of a communication antenna, which comprises a main shaft and a bottom bracket fixed on the main shaft, a plurality of installation shafts are annularly and uniformly fixed at the upper end of the bottom bracket, and the side walls of the plurality of installation shafts are rotatably connected with screw rods; the communication antennas are rotationally connected to the multiple mounting shafts, and the sliding sleeves are slidably connected to the multiple mounting shafts; and the multiple sliding sleeves are rotationally connected with connecting rods. When the threaded sleeve moves to the tail end of the screw rod and the screw rod continues to rotate, the screw rod can overcome the friction force of the friction assembly and drive the threaded sleeve to rotate, so that the threaded sleeve is prevented from rigidly colliding with the screw rod and being damaged; the downward inclination angles of the plurality of communication antennas can be respectively adjusted in a manner that the pushing mechanism pushes the different lifting sliding plates to move upwards and the driving shaft rotates, so that the steps of adjusting the downward inclination angles of the plurality of communication antennas are simplified, and the operation is simple.

The utility model discloses a water-driven self-pressure-relief buried telescopic sprinkling irrigation device, and belongs to the technical field of agricultural irrigation. The water-driven self-pressure-relief buried telescopic sprinkling irrigation device comprises an outer pipe assembly, an inner pipe is arranged in the outer pipe assembly in a sliding mode, the upper end and the lower end of the inner pipe are fixedly provided with a spray head and a sliding base respectively, the sliding base divides the interior of the outer pipe assembly into a first inner cavity and a second inner cavity, and the spray head extends to the exterior of the outer pipe assembly; a self-pressure-relief assembly is arranged in the sliding seat in a sliding mode, and a plurality of connecting holes matched with the self-pressure-relief assembly are formed in the sliding seat. According to the technical scheme, the buried telescopic sprinkling irrigation device can be driven up and down through water resources, and meanwhile, pressure self-relief can be achieved.

The utility model relates to the technical field of intelligent closestools in bathroom accessories, and provides a swingable water type switching cleaning device which comprises a spray rod body, a spray head mechanism and a driving unit, and the cleaning device is provided with a water conveying pipe; the spray head mechanism comprises an inner core assembly, the inner core assembly is communicated with the water conveying pipe, and the inner core assembly comprises at least two nozzles with different water types; the driving unit drives the inner core assembly to rotate. On the basis, different requirements of different users on the water spray collecting and dispersing degree, the cleaning area and the like can be met.

The invention belongs to the technical field of welding jigs, and particularly relates to a supporting frame welding device for furniture design and production, which comprises an annular connecting seat, a first mounting seat, a clamping piece and a first driving assembly, in the welding process, the position of the first sliding seat in the middle can be adjusted, the position of the first mounting seat can be changed, the supporting position of a welded cross rod can be changed, the stability of the welded cross rod is improved, the situation that the welding quality is reduced due to inclination of the welded cross rod caused by center-of-gravity shift is avoided, and the welding quality is improved; the position of the first sliding base can be adjusted, welding work of polygonal supporting frames with different edge numbers is completed, and the applicability of the welding device is improved; and the distance between the second sliding seat and the axis of the annular connecting seat is adjusted through the second adjusting assembly, polygonal supporting frames of different sizes are welded, and the applicability of the welding device is improved.

The utility model discloses a flexible photovoltaic support in the technical field of solar photovoltaic, which comprises at least two groups of photovoltaic supports which are longitudinally arranged, connecting pieces are arranged in the longitudinal direction, a plurality of groups of photovoltaic supports are connected through the connecting pieces, each group of photovoltaic supports at least comprises two bases, two inhaul cables and a photovoltaic assembly, the bases are transversely arranged, and the photovoltaic assemblies are arranged on the bases. The lower ends of the bases are fixed on the ground, the bases are connected through the inhaul cables, the photovoltaic modules are fixed on the inhaul cables, the connecting pieces comprise span stabilizing pieces and connecting ropes, the span stabilizing pieces are connected between the inhaul cables arranged on each group of photovoltaic supports side by side, and the connecting ropes are used for connecting the span stabilizing pieces on two adjacent groups of photovoltaic supports. According to the flexible photovoltaic support, the technical problems that a certain safety risk exists and the labor intensity and the installation difficulty are increased due to the fact that an installation instrument needs to be manually lifted on a mountainous region to pre-tighten a steel rope in an existing device are solved, and the installation difficulty and the labor intensity are reduced, and the installation cost is reduced.

A robot sweeper includes a main body, a pair of drive modules, and a cleaning module. The drive modules are respectively pivotally connected to the main body. The drive modules include a roller set and a drive device. The drive device is mechanically connected to the roller set and configured to drive the roller set to rotate about a first axis. The cleaning module is connected to the main body and at least partially located between the roller sets along the first axis.

The utility model discloses a degradable PLA (polylactic acid) coated paper cup forming mold, and relates to the technical field of paper cup production. The device comprises a supporting cylinder, the top of the supporting cylinder is rotationally connected with a rotating disc, a plurality of separable molds are arranged at the top of the rotating disc, elastic pushing assemblies are arranged on the two sides of each separable mold, jacking assemblies are arranged at the bottoms of the separable molds, and locking assemblies are arranged at the pushing ends of the elastic pushing assemblies. According to the paper cup separating device, the separating assembly is driven, after the locking assembly unlocks the elastic pushing assembly, the elastic pushing assembly pulls the separable mold outwards and enables the separable mold to be separated, at the moment, a paper cup can be separated from the inner wall of the separable mold, then the jacking assembly jacks the paper cup upwards, and the paper cup can be separated from the inner wall of the separable mold. By means of the arrangement, when the paper cup is demoulded, friction force and obstruction from the inner wall of the separable mould can be avoided, and the risks of local tearing and deformation caused by uneven stress of the paper cup are effectively reduced.

The utility model belongs to the field of engineering construction, and particularly relates to a fixing device capable of being quickly assembled and disassembled on a round rod, the device comprises a detachable shell part and an internal assembly part, the detachable shell part comprises a top cover, a conical shell and a detachable bottom cover, and the internal assembly part comprises an upper baffle, a lower baffle, a small ball and an auxiliary spring. The upper baffle and the lower baffle both comprise poking pieces, a longitudinal opening allowing the poking pieces to slide up and down is formed in the conical shell, the round rod is rapidly locked by the small ball through the acting force of the lower baffle and the auxiliary spring, the poking pieces of the upper baffle fluctuate downwards, and the device is rapidly unlocked. The nut is simple in structural design, does not need external tools, is convenient to disassemble and assemble, is suitable for any angle, can be replaced and maintained, can replace the function of a nut in many aspects, is also suitable for a smooth round rod which is not suitable for the nut, greatly saves time, improves the disassembly and assembly efficiency of an operator, and reduces the labor intensity of the operator. And an inexperienced person in daily life can also conveniently use the device.

The present invention provides a water head regulating device for a water turbine, comprising a water head body, both sides of which are provided with regulating mechanisms, and the regulating mechanisms include a first box, a first clamping block, a sliding rod, a first slider, a limiting rod, a second clamping block and a fixing rod. The present invention drives the first threaded rod to rotate by a handle, the first threaded rod drives the first fixing plate to move, the first fixing plate drives the first clamping block to move, and through the coordinated use of the second clamping block, when the first clamping block movement belt completely fixes the rotating shaft, the purpose of tightening or accurately regulating the water head body can be achieved, and the problem that the existing water turbine, due to the lack of a corresponding positioning mechanism, is prone to displacement of the water head under the scouring of the water body during long-term use, and each time the height is adjusted, it is necessary to use large equipment such as a crane, which is inconvenient for users to use.

The invention discloses a transformer shell pipeline protection framework, and relates to the technical field of transformer shell framework structures. Comprising a framework body installed in a transformer shell, and a pipeline protection assembly is arranged on the side face of the framework body; the pipeline protection assembly comprises a first spherical arc-shaped piece, a second spherical arc-shaped piece and a third spherical arc-shaped piece, wherein an arc-shaped sliding cavity is formed in the first spherical arc-shaped piece; and the second spherical arc-shaped piece is movably installed in the arc-shaped sliding cavity, and the second spherical arc-shaped piece can slide out of one end of the arc-shaped sliding cavity and then is inserted into the other end of the arc-shaped sliding cavity. By arranging the pipeline protection assembly, during assembling, a pipeline can be installed in the first spherical arc-shaped piece, and the second spherical arc-shaped piece is rotated to slide out of one end of the arc-shaped sliding cavity and then is inserted into the other end of the arc-shaped sliding cavity, so that a closed-loop structure is formed by the second spherical arc-shaped piece and the first spherical arc-shaped piece; and then the second spherical arc-shaped piece is ejected and fixed through the ejection column, and therefore local coating and limiting of the pipeline are achieved.

The present invention relates to the technical field of casting, and in particular to a casting device for the production of molds for seamless steel pipes, comprising a cover plate, a positioning plate, a second cylinder, a third cylinder, a sand sleeve and a locking assembly; the cover plate is plugged into the upper sand box; the cover plate is connected to the positioning plate; a positioning hole is provided on the positioning plate; the positioning plate is slidably connected to the cylinder two; the cylinder three is fixedly connected to the cylinder two, and the cylinder three passes through the positioning hole. Through the cooperation of the cover plate and the positioning plate, the sand sleeve can be aligned with the riser by manually inserting the sand sleeve into the positioning hole, thus avoiding many problems caused by the misalignment of the sand sleeve with the riser. At the same time, the positioning plate used for positioning the sand sleeve is also used for blocking and limiting the cylinder two, thus avoiding the problem that the cylinder two and the cylinder three crush the sand mold block two due to the difficulty in controlling the direction of the force due to excessive force.

This utility model discloses a backrest lock, including a base plate. A locking hook and a locking plate are movably disposed on the base plate. The end of the locking plate has a pull head for connecting and cooperating with an external car pull rod, so that when the pull rod is pulled, the locking plate swings to release the restriction on the swing of the locking hook. The inner wall of the locking hook has a positioning strip for synchronously moving along the swing trajectory of the locking hook when it swings. The inner wall of the base plate has a positioning structure that works in conjunction with the positioning strip to guide the swing trajectory of the locking hook and limit the direction of the hook's swing, and an auxiliary structure that works in conjunction with the positioning structure to limit the wobbling or loosening of the locking hook when it is subjected to vibration and to improve the smoothness of the hook's swing. This utility model solves the problems of unstable hook swing trajectory and insufficient positioning accuracy in traditional backrest locks, easy loosening or wobbling of the locking hook under vibration, and insufficient smoothness of the hook's swing leading to operational jamming.

The utility model relates to the technical field of tobacco shred feeding machines, in particular to a feeding nail curtain and a tobacco shred feeding machine with the feeding nail curtain, the feeding nail curtain comprises a lifting belt, the lifting belt is suitable for being arranged between two guard plates of the feeding machine, the interval direction of the two guard plates is a first direction, and the lifting belt extends in a second direction orthogonal to the first direction; the rake assembly is connected to the lifting belt, the rake assembly comprises a plurality of rakes arranged at intervals in the second direction, each of the rakes extends in the first direction, the rakes comprise a plurality of first rakes and a plurality of second rakes, and one or more second rakes are arranged between every two adjacent first rakes at intervals; the second rake is shorter than the first rake in the first direction. According to the feeding nail curtain and the tobacco shred feeding machine with the feeding nail curtain, tobacco shreds can be prevented from being stacked, meanwhile, the tobacco shreds can be prevented from rotating into clusters, and then the shred type structure of the tobacco shreds after the shredding process can be stabilized.

The invention relates to the technical field of machine control, and discloses a robot motion control device and a using method thereof.The self-adaptive structure is arranged above a machine shell and used for controlling robot arms with the corresponding number to machine materials, and the self-adaptive structure comprises an inner pipe, an inner column, a clamping groove, a sleeve, clamping teeth, a moving rod and a shifting block; the inner pipe is rotatably connected to the front wall face of the middle plate and is cylindrical, the rear wall face of the inner pipe can be fixedly connected with the end of the adjusting shaft, the inner column is fixedly connected into a cavity of the inner pipe, the clamping groove is formed in the wall face of the inner column, the sleeve is movably connected to the upper portion of the machine shell and is cylindrical, and the clamping teeth are fixedly connected into a cavity of the sleeve. The moving rod is connected to the wall face of the machine shell in a sliding mode, the shifting block is fixedly connected to the wall face of the moving rod, the sleeve can be connected with the inner pipe in a sleeved mode, the robot arms with the needed number can be automatically adjusted according to the size of an object needing to be machined through the self-adaptive structure to machine the object, and compared with the prior art, the robot arm machining device has higher practicability.

The invention discloses a driving device, a solar tracking support system and a driving method thereof, and the driving device comprises N driving units which are arranged in rows or columns at intervals in pairs, each driving unit comprises a main wheel, and N is a natural number greater than 1; the number of the worm transmission devices is N; the worm transmission device is in meshed transmission connection with the main wheel; the number of the second worms is N; the second worm is in meshed transmission connection with the worm transmission device; joints are fixed at the two ends of the second worm; a coupling; one end of the coupling shaft is connected to a joint at one end of a second worm; the other end of the coupling shaft is connected to a joint at one end of the other adjacent second worm; the (N-1) couplings and the N second worms form an auxiliary shaft under the connection of the joints; the motor is connected with the auxiliary shaft and used for driving the auxiliary shaft to rotate. The bearing capacity can be improved, synchronous rotation is guaranteed, a damper is not needed, and the problems of wind vibration and deflection torsion are solved.

The application discloses a path planning method, a path planning device, a self-moving device and a computer storage medium. The method is applied to the self-moving device, the self-moving device comprises a first front wheel and a second front wheel, the first front wheel and the second front wheel are arranged in a non-parallel manner, and the method comprises the following steps: when it is detected that the self-moving device is located on a slope, the direction of the slope is determined according to the current posture of the self-moving device; the first angle between the direction of the slope and the first front wheel and the second angle between the direction of the slope and the second front wheel are determined; the target motion direction of the self-moving device is determined according to the first angle and the second angle; the slope moving path is planned according to the target motion direction, and the self-moving device is controlled to move along the slope moving path. The method can improve the climbing ability of the self-moving device, and further improve the operation coverage and operation effect.

The present invention discloses an active bending section, an insertion part and an endoscope, and relates to the technical field of medical devices. The active bending section of the present invention includes a plurality of serpentine segments, and two adjacent serpentine segments are connected to each other; the active bending section also includes a traction rope assembly, the traction rope assembly includes a traction rope and an outer tube, the proximal end of the traction rope is connected to the handle of the endoscope, the distal end of the traction rope extends to the distal end serpentine segment, and the distal end of the traction rope is fixedly connected to the distal end serpentine segment; the outer tube is sleeved outside the traction rope, the outer tube and the traction rope are gap-matched, and from the proximal end to the distal end, the outer tube extends from the proximal end serpentine segment at least to the serpentine segment adjacent to the proximal end serpentine segment. The active bending section of the present invention can make the serpentine segment at the distal end of the outer tube bend first, and this bending mode is conducive to reducing the bending radius of the active bending section during the bending process, and can reduce the difficulty of operation when used by doctors during surgery.

A seamless steel pipe conveying and unloading device belongs to the technical field of steel pipe conveying devices. It includes a drive shaft; drive wheels spaced at intervals along the length of the drive shaft; driven wheels rotating to the left of the drive wheels; a conveyor belt fitted between each drive wheel and driven wheel; and a crossbeam fixed to the frame via a crossbeam support arm within the conveyor belt cavity corresponding to each conveyor belt. The driven wheel shaft is connected to the left end of the crossbeam via a driven wheel shaft left-right adjustment mechanism. The key feature is the inclusion of a steel pipe lifting and unloading mechanism, mounted on the driven wheel shaft. When the conveyor belt carrying the seamless steel pipe is turning and changing direction while passing the driven wheel, the seamless steel pipe is picked up and lowered by the steel pipe lifting and unloading mechanism. Advantages: It prevents premature wear, breakage, deformation, and detachment of the pads, effectively protects the service life of the conveyor belt and driven wheels, reduces the workload of equipment maintenance personnel, and saves on equipment maintenance costs.

The present invention discloses a metamorphic grabbing mechanism with automatic adjustment function, wherein the metamorphic grabbing mechanism is installed in pairs on the transverse movement mechanism of the racking device, and the metamorphic mechanisms used in pairs perform synchronous reverse rotation, and the transverse movement mechanism includes a plurality of transverse movement devices connected by transmission, and the transverse movement device located at the top of the transverse movement mechanism includes a base and a connecting plate, and a pair of lugs are arranged on the upper surface of the base, and a base shaft is arranged on the lug, and an electromagnet clamp is arranged below the connecting plate, and the base shaft arranged on the lug passes through the connecting hole of the electromagnet clamp and is supported on the lug at both ends, and one end of the connecting plate is connected to the lifting device of the racking device. The present invention uses a pair of gear sets to drive a 3x speed mechanism to complete the equipment in the channel for the left and right rows of shelves, which greatly simplifies the complexity of the structure and the difficulty of assembly compared with the commonly used two sets of speed increasing mechanisms to complete the 3x speed mechanism.

The present invention discloses a snake-bone assembly component, an active bending section, an endoscope and an assembly method, and relates to the technical field of medical devices. The snake-bone assembly component includes a rivet, which is used to connect two adjacent snake-bone sections of the active bending section. The snake-bone assembly component also includes a damping member, which is at least located at the connection between two adjacent snake-bone sections at the proximal end of the active bending section. From the proximal end to the distal end, the friction force generated by the damping member gradually decreases, and the damping member has a first state and a second state. The friction force generated by the damping member in the first state is greater than the friction force generated in the second state. When the active bending section changes from a straight state to a bent state, at least one group of damping members on the active bending section switches from the first state to the second state. The snake-bone assembly component can make the distal end of the active bending section bend first and the proximal end bend later; and when the active bending section is bent, it also has the advantages of applying less force to the traction rope and being easy to achieve large-angle bending.

The unfolding mechanism for the barrier plate of the roadblock vehicle is suitable for being arranged between a vehicle body of the roadblock vehicle and the barrier plate so as to open or close the barrier plate of the roadblock vehicle, and is characterized by comprising a support big arm, an unfolding arm and a driving arm, one end of the support big arm is suitable for being hinged to a vehicle body of the roadblock vehicle, the other end of the support big arm is hinged to one end of the unfolding arm through a first knuckle bearing, and the other end of the unfolding arm is provided with a second knuckle bearing suitable for being hinged to the inner side of a baffle of the roadblock vehicle through the second knuckle bearing. One end of the driving arm is suitable for being hinged to a vehicle body of the roadblock vehicle, and the other end of the driving arm is hinged to the side wall of the support large arm so as to drive the support large arm to rotate.

The invention provides a polyester fabric crease-resistant winding device, and relates to the technical field of fabric winding, the polyester fabric crease-resistant winding device comprises a fixed box, a suspension chain transmission mechanism assembled on the fixed box, a plurality of clamping assemblies arranged at intervals and arranged below the suspension chain transmission mechanism in a transmission manner, a crease-resistant assembly arranged on the fixed box, and a winding drum detachably arranged on the fixed box; a polyester fabric is clamped below the clamping assembly; a mounting seat for assembling the winding drum is fixedly arranged on the fixed box, so that the winding drum can be mounted on the fixed box and dismounted from the fixed box; the polyester fabric moves along the suspension chain transmission mechanism under the action of the clamping assembly, so that the polyester fabric is wound in a vertical state, the phenomenon that the polyester fabric droops or is not flat due to the direct action of gravity is avoided, and when the polyester fabric is wound in the vertical state, the polyester fabric can be continuously wound under the action of the gravity. And the polyester fabric can keep better tension and flatness, wrinkles and pits are reduced, and therefore the overall winding quality is improved.

The invention relates to the technical field of water purification assemblies, in particular to a negative hydrogen ion water quality purification device which comprises a base, a containing groove is formed in the base, a filtering unit is arranged in the containing groove, a dismounting and mounting device is arranged on the base, and a butt joint device is arranged on the base. The dismounting and mounting device comprises two magnets I which are respectively arranged at the two ends of the placing groove, two magnets II which are used for being attracted with the two magnets I are respectively and fixedly mounted at the two ends of the filtering unit, and sealing rings are fixedly mounted on the magnets II; two clamps are symmetrically and fixedly mounted on each magnet I, and a plurality of buckles matched with the clamps are fixedly mounted on the outer side wall surface of the filtering unit. The invention aims to provide the negative hydrogen ion water quality purification device so as to reduce the operation difficulty when the filter element is replaced.

The present invention discloses a toggle switch group lock head assembly with a positioning device, comprising a lock head, a lock core and a key matched with the lock core, the lock core is arranged inside the lock head, and a handle, a lock fork and a mounting seat are sequentially sleeved on the outside of the lock head from top to bottom, the handle and the lock fork are connected to the lock head through axial serrations, a retractable lock tongue is arranged at the bottom of the lock core, a lock tongue groove matched with the lock tongue is provided on the lock head and the mounting seat, a positioning hole is arranged inside the mounting seat, a positioning steel ball, a spring A and a set screw C are arranged in the positioning hole from inside to outside, and a positioning groove matched with the positioning steel ball is provided on the outside of the lock head. The toggle switch group lock head assembly of the present invention is composed of a lock head, a lock core, a lock tongue, a key, a handle, a lock fork and a mounting seat, and has a simple structure. The lock tongue is driven to retract and retract by twisting the key, thereby changing the state of the lock head assembly, realizing the control of the toggle switch group, and improving the reliability of the lock switch action.

The utility model discloses a crucible forming double-station hydraulic machine, which relates to the technical field of crucible manufacturing equipment and comprises a mold base and first hydraulic machines arranged at two ends of the top of the mold base along the length direction of the mold base. A locking mechanism is arranged at the bottom end of the interior of a storage groove in the mold base, a driving mechanism is connected to the upper portion of the locking mechanism, the driving mechanism is driven by the locking mechanism, the multiple first limiting plates can be driven to be spliced and separated, the first limiting plates are separated during demolding, the contact area between the mold and a finished product is reduced, and the production efficiency is improved. Therefore, friction force is reduced, the demolding process is smoother, the demolding speed is increased, the second hydraulic machine can eject out a finished product, friction force generated by direct ejection in a traditional demolding mode is avoided, and the outer arc wall of the finished product is further protected against damage.

The utility model provides a lens driving motor, a camera device and electronic equipment. The lens driving motor comprises: a housing assembly having an accommodating cavity; the lens supporting body is movably arranged in the shell assembly; at least one oil storage groove is formed in the outer surface of the guide sliding shaft; and at least one part of the driving assembly is arranged on the shell assembly, and at least the other part of the driving assembly is arranged on the lens supporting body so as to drive the lens supporting body to move along the guide sliding shaft. According to the utility model, the problem of large friction force in the lens moving process in the prior art is solved.

The utility model belongs to high -voltage electric porcelain technical field, concretely is a kind of anti-deformation pottery clay wine jar forming die, including support frame, still include: spraying assembly is set to support frame top inside;Send mud component, is set to support frame top outside;Moving assembly is set to support frame both sides inside;Die is real component, is set to moving assembly moving end;The utility model provides a kind of anti-deformation pottery clay wine jar forming die, before the two sides pottery clay mould is real, and spraying release agent on pottery clay mould inner wall, and release agent can reduce pottery clay and the adhesion of mould, ensure that pottery clay smoothly demould, avoid deformation or damage, secondly, it helps to ensure that pottery clay wine jar keeps stable shape during forming process, avoid partial pressure and deformation, furthermore, release agent can improve demoulding efficiency, reduce friction, to speed up production process, it can also protect mould surface, reduce wear and tear, extend the service life of mould, and reduce maintenance frequency.

The invention belongs to the technical field of textile machinery, and discloses a roller dismounting device and a working method thereof.The roller dismounting device comprises a rack, a controller is arranged on the rack, a working groove is formed in the top of the rack and used for containing a roller, the roller comprises a shaft body and a roller body, the shaft body is sleeved with the roller body, and the shaft body is in interference fit with the roller body; an oil cylinder fixedly connected with the rack is arranged on the left side of the rack in a penetrating mode, the oil cylinder extends into the working groove, and an output shaft of the oil cylinder is fixedly connected with an ejector rod; a plurality of groups of latch holes are formed in the rack and located on the front side and the rear side of the working groove, a limiting latch is inserted into one group of latch holes, a through hole is formed in the limiting latch, and the shaft body is sleeved with the limiting latch through the through hole. The roller dismounting device is specially designed for solving the problem that a roller shaft body and a roller body are in interference fit and are difficult to dismount, the oil cylinder drives the ejector rod to push the shaft body, the roller is dismounted under the action of mechanical force, and the dismounting efficiency is greatly improved.

The invention discloses a neutral terminal welding machine, and relates to the technical field of welding equipment manufacturing, the neutral terminal welding machine comprises a welding table, the top of the welding table is fixedly connected with an electric elevator, one side of the electric elevator is provided with a welding device, the bottom of the welding device is fixedly connected with a welding head, and the bottom of the welding device is provided with a smoothing mechanism; through the arrangement of the smoothing mechanism, the wire harnesses are hinged, opened and closed towards the two sides along with the outwards-turned splayed angles of the two hinged frames, pressing blocks on the left side and the right side press the wire harnesses and push the wire harnesses towards the two sides, the two wire harnesses are tightened and straightened, and therefore the interwoven parts of the two wire harnesses are fully straightened and prevented from being bent; according to the wire harness welding device, the lower welding head is used for welding the interwoven position of the wire harnesses, then the two wire harnesses are automatically tightened while the wire harnesses are clamped and stably welded, the welding accuracy of the wire harnesses is improved, the wire harnesses are straightened together and then welded, and the problem of welding position deviation caused by welding bending and tilting is solved.