275results about How to "Reduce friction damage" patented technology

The invention discloses a coal briquette forming device and method, and belongs to the technical field of coal briquette machining.The coal briquette forming device comprises a rack, the rack comprises an upper beam, a lower beam and a supporting rod used for connecting the upper beam and the lower beam, and the coal briquette forming device further comprises a downward pressing part, the lower pressing part comprises a first oil cylinder fixedly arranged on the upper beam and a pressing head arranged at the end part of a piston rod of the first oil cylinder; the stirring heat preservation hopper is fixedly arranged on the side edge of the upper beam and is used for stirring and mixing the pulverized coal; the feeding hopper is arranged on the lower beam in a sliding mode, a pre-extrusion assembly is arranged in the feeding hopper, and a second oil cylinder used for driving the feeding hopper to move transversely is arranged on the lower beam; the mold cavity is formed in the lower beam; according to the coal briquette stacking device, the compactness of briquettes can be conveniently improved, the briquettes can be automatically stacked, the briquettes are effectively prevented from loosening, the rejection rate of the briquettes is reduced, and the processing quality and processing efficiency of the briquettes are improved.

The utility model relates to the technical field of coal analysis equipment, and discloses a cover opening and closing device. The cover opening and closing device comprises a non-metal clamping block, a clamping driving part and a cover screwing part. Wherein the non-metal clamping block is used for clamping a bottle body. The clamping driving part is connected with the non-metal clamping block and used for driving the non-metal clamping block to tightly hold or loosen the bottle body. And the cap screwing part is used for clamping the bottle cap so as to open or close the bottle cap. The non-metal clamping block is arranged and used for clamping the bottle body, and when the bottle body and the non-metal clamping block move relative to each other, compared with a metal clamping block, the non-metal clamping block can reduce friction damage to the bottle body and reduce the damage degree of the bottle body; the problems that in the cap opening and closing process of a cap opening machine in the prior art, the damage degree of a coal bottle is serious, and the service life of the coal bottle is shortened are solved.

The invention discloses a roller type double-movable finger clip precision dibbler, and belongs to the technical field of seeding equipment, a seed taking assembly of the roller type double-movable finger clip precision dibbler comprises a shifting piece, a second elastic element and a finger clip buckle, the finger clip buckle comprises two finger clips, namely a driving finger clip and a driven finger clip, the middle parts of the two finger clips are hinged, and the hinged point is fixed on a seed metering disc; the second elastic element is used for pushing the heads of the two finger clamps to rotate in the direction away from each other. In the rotating process of the seed-metering disc, when the finger clip rotates to enter the seed-metering opening, the driven finger clip rotates to discharge seeds under the action of the second elastic element, and when the finger clip leaves the seed-metering opening, the cam drives the driving finger clip to rotate, so that the head part of the driven finger clip extends into the shell. According to the invention, seeds are clamped and protected by the two finger clips after being obtained by the finger clips, so that the seeds are separated from the inner wall of the shell, and therefore, when the finger clips continue to rotate, the seeds do not generate dynamic friction with the inner wall of the shell any more, so that the seeds are protected, the friction damage to the seeds is reduced, and the survival rate of the seeds is increased.

The invention discloses an inclined pile guide frame and a steel casing based on the inclined pile guide frame, and relates to the technical field of building construction, the inclined pile guide frame comprises a steel casing body and a guide frame assembly used for guiding the steel casing body; according to the inclined pile guide frame for the lower steel casing, the guide frame assemblies, the longitudinal beams and the second short beams are welded to form the inclined pile guide frame for the lower steel casing, and in the steel casing lowering process, the four lowering assemblies are controlled to operate synchronously through the linkage assembly; the lowering assembly is matched with the hooking assembly, so that the lowering speed and depth of the sectional type steel casing bodies can be accurately controlled, the multiple steel casing bodies can be synchronously welded in the lowering process to form the complete steel casing, and compared with a traditional mode that welding is conducted firstly and then overall lowering is conducted, the requirement for hoisting equipment is lowered, and the production efficiency is improved. And adjustment is easy, safety is high, meanwhile, cost and difficulty of links such as transportation are reduced, and high economic value is achieved.

The utility model discloses a position-variable double-arm structure and an arch frame trolley. The position-changeable double-arm structure is arranged on a trolley body of the lagging jack trolley and comprises a first arm frame and a second arm frame. Wherein the first arm frame can horizontally rotate and pitch up and down on the first rotary table seat; the second arm frame can horizontally rotate and pitch up and down on the second rotary table seat; and at least one of the first rotary table seat and the second rotary table seat can move left and right relative to the vehicle body, so that at least one of the first arm frame and the second arm frame can move left and right relative to the vehicle body. The utility model solves the problems of large volume, high cost, longer construction time and low construction efficiency caused by unreasonable structure arrangement of the existing tunnel vertical arch frame equipment.

The invention provides a cone yarn contact pressure control system and method.The cone yarn contact pressure control system comprises a complete machine head, a cone machine compressed air channel, a cone machine single spindle and a control system, the cone machine single spindle comprises a groove drum, a groove drum transmission mechanism and a cone yarn pressurization mechanism, and the cone yarn pressurization mechanism comprises a cone yarn cradle, a balance air cylinder, a tension spring and a cone yarn cradle swing assembly; the device is characterized in that a compressed air channel of the winding machine comprises a low-balance air pressure air channel and a high-balance air pressure air channel, an electromagnetic valve arranged on each balance air cylinder comprises two air inlets and an air outlet, and the two air inlets are respectively communicated with the low-balance air pressure air channel and the high-balance air pressure air channel through connecting pipelines. The air outlet is communicated with an air inlet of the balance cylinder. The electromagnetic valve is controlled by a control system and used for periodically and alternately inputting balanced air pressure gas or high-balanced air pressure gas into the balanced air cylinder when the cone yarn is wound in an overlapping area, variable accurate control over the cone yarn contact pressure is achieved, and the cone yarn anti-overlapping effect and the cone yarn quality are improved.

The invention relates to the technical field of concrete pipe pile forming, in particular to concrete pipe pile forming equipment. A body is included; two groups of supporting seats are fixedly mounted in the machine body; each group of supporting seats comprises two bases; a rotating wheel is rotationally connected between the two bases; the cover plates are arranged to be matched with the machine body, so that the machine body can be sealed by the cover plates in the overturning and closing process of the two cover plates, and then an external steam pipe is controlled to convey steam into the sealed machine body, so that a tubular pile mold placed in the machine body can be heated, and solidification delay of concrete in a cold environment due to too low temperature is prevented; compared with a heating box heating mode, the steam serves as a heat transfer medium, so that the steam is in direct contact with the pipe pile mold, heat energy can be quickly and effectively transferred to the pipe pile mold and internal concrete, the heating speed is high, and the concrete filling and forming efficiency is effectively improved; and electric energy is not consumed in the heating process, so that the energy consumption is reduced.

The knurled guide shaft sleeve comprises a guide sleeve, a first knurled sleeve is fixedly connected in the guide sleeve, one end of the first knurled sleeve is fixedly connected with a shaft sleeve, a spacer bush oil passing gap is formed between the shaft sleeve and the guide sleeve, and a spacer bush inner wall oil storage space is formed in the shaft sleeve. A second knurled sleeve fixedly connected with the guide sleeve is fixedly arranged at the end, away from the first knurled sleeve, of the shaft sleeve, the outer diameter of the shaft sleeve is smaller than the outer diameter of the first knurled sleeve and the outer diameter of the second knurled sleeve, and a second oil inlet hole is formed in the shaft sleeve. When the oil conveying channel is blocked, the guide sleeve can supply lubrication normally without generating violent friction, buffer time is provided for maintenance of workers, and then the occurrence rate of friction damage is remarkably reduced.

The invention relates to the technical field of rotary kiln sealing, in particular to a sealing device for a waste tire regeneration rotary kiln, which comprises a kiln body, a screw conveyor for feeding materials into the kiln body and a material receiving device for receiving the materials in the kiln body, a feeding cover on the screw conveyor extends into the kiln body, and a sleeve is welded on the feeding cover; a discharging cover stretching into the material collecting device is welded to the end, close to the material collecting device, of the kiln body, and the sleeve and the discharging cover are each sleeved with a sealing mechanism. According to the sealing device, the sealing flexible connecting piece and the supporting assembly are arranged, so that the whole fixing ring frame can be driven to rotate through the sealing flexible connecting piece and the supporting assembly when the kiln body rotates, and in addition, the packing is fixed to the feeding cover through the steel wire rope, so that the rotation of the packing is small; according to the utility model, the axial and radial displacement of the kiln body in the rotation process is avoided, a certain force is applied to the packing, and the packing is stressed and deformed, so that the influence of the displacement on the sealing is reduced.

This utility model belongs to the field of crane technology, specifically a crane for large water meter testing. It includes a crane body with an oil tank fixedly attached to its top. The oil tank has an oil inlet at its top. A first oil pump is connected to the side wall of the oil tank. A connecting plate is connected to the bottom of the first oil pump. Multiple brushes are fixedly attached to the bottom of the connecting plate. The brushes are arranged through the crane body. A fixing plate is provided at the bottom of the crane body. A first servo motor is fixedly attached to the side wall of the fixing plate. A drive wheel is fixedly attached to the output end of the first servo motor. The drive wheel and the crane body are in a rolling connection. The brushes and the drive wheel are correspondingly arranged. A cable reel is fixedly attached to the bottom of the fixing plate. A second servo motor is fixedly attached to the side wall of the cable reel. A pair of lifting ropes are slidably connected to the bottom of the cable reel. A hook is fixedly attached to the bottom of the lifting ropes. Multiple first circular holes are opened inside the crane body.

The invention discloses a chemical mechanical polishing composition suitable for silicon-based device planarization in the field of semiconductor manufacturing and application of the chemical mechanical polishing composition. The chemical mechanical polishing composition comprises an oxidizing agent, polyethylene glycol grafted silica sol, a complexing agent, bipyridine and derivatives thereof, a corrosion inhibitor, a surfactant and deionized water. The silica sol in the polishing composition is the silica sol with the surface grafted by polyethylene glycol, and the polyethylene glycol grafted silica sol is matched with bipyridine and derivatives thereof, so that the effects of improving agglomeration of silica sol particles, reducing surface defects after polishing and reducing silica sol particle residues on the surface of a material after polishing can be achieved.

The present invention discloses a microorganism dust-free culture device, which comprises: an outer box body, the periphery of the bottom end of the outer box body is connected with the ground through columns; the mixing adjusting mechanism comprises a motor arranged in the center of the top of the outer box body, an output shaft of the motor penetrates through the outer box body and extends to a rotating shaft in the inner box body, a stirring rod matched with the rotating shaft is installed on the outer wall of the rotating shaft, and the output shaft of the motor is in transmission connection with a rotating wheel through a first conveying belt; and one end of the rotating wheel is in transmission connection with a first movable shaft fixed on the first rotating teeth through a second conveying belt. The technical problems that a workbench and equipment need to be cleaned regularly in the microorganism culture process, however, the regular cleaning operation is inconvenient, the working efficiency is reduced, and meanwhile normal culture work is affected if nutrient substances are not in uniform and effective contact with microorganisms in the culture process are solved.

The utility model relates to the field of water gap processing device discloses a connecting rod drive's rotary water gap breaking device, including base, the top fixedly connected with first base and second base of base, the inside of first base and second base all is provided with rotation structure, the rotation structure includes push cylinder, the piston rod end fixedly connected with first connecting rod of base, the one end rotationally connected with second connecting rod of first connecting rod away from push cylinder, the one end rotationally connected with third connecting rod of second connecting rod away from first connecting rod, the one end fixedly connected with rotating shaft of third connecting rod away from second connecting rod, the one end fixedly connected with fixed base of rotating shaft, in the utility model, the mutual cooperation between push cylinder, first connecting rod, second connecting rod, third connecting rod and rotating shaft drives fixed base to rotate, and the product water gap of claw fixing is broken down successfully, and simple, convenient operation improves installation efficiency and work efficiency.

The invention discloses injection molding equipment for inverter inner plastic part production and relates to the technical field of injection molding, the injection molding equipment comprises a bottom plate and a control panel, and the outer surface of the bottom plate is fixedly connected with the back face of the control panel. The rotating rod is driven to rotate in the feeding hopper, and the four special-shaped rods are driven to rotate in an inner cavity of the feeding hopper while the rotating rod rotates, so that when plastic particles enter the heating box through the feeding hopper, the plastic particles can be rotationally stirred through the special-shaped rods; and meanwhile, the cleaning assembly can be driven to rotationally rub the inner wall of the feeding hopper while the rotating rod rotates, so that the plastic particles are prevented from being adhered to the inner wall of the feeding hopper.

The invention discloses movable slitting equipment for production and processing of high-temperature-resistant insulating silica gel, and relates to the technical field of silica gel slitting and processing, the movable slitting equipment comprises a rack assembly, a slitting assembly, an anti-reversion assembly and an adsorption assembly, the slitting assembly is located above the rack assembly, and the anti-reversion assembly is located on the front side of the rack assembly. When the device is used, the effect of pressing insulation silica gel and then tensioning the insulation silica gel towards the two sides is achieved, so that the insulation silica gel is difficult to further deform when being subjected to cutting force, the size precision of a slit silica gel product is ensured, the high-quality production requirement is met, the smoothness in the silica gel pressing and stretching process is ensured, the friction damage is reduced, and the production efficiency is improved. According to the silica gel slitting device, the stability of silica gel in the slitting process is guaranteed, the function is practical, meanwhile, in the multiple times of slitting process, the stability of the silica gel which is tensioned, unfolded and then adsorbed and fixed can be guaranteed, and the high-quality production requirement is met.

The utility model discloses a rhizome medicine soaking device for agricultural production, which belongs to the technical field of agricultural production equipment and structurally comprises a medicated bath box, two adjusting frames are fixed at the top of the medicated bath box, sliders are in sliding fit with the inner sides of the two adjusting frames, a lifting plate is fixed between the two sliders, and a plurality of groups of cargo carrying frames are fixed on the lower surface of the lifting plate. A top plate is arranged at the top of the cargo carrying frame, a plurality of rotating rollers are rotationally connected to the inner bottom of the cargo carrying frame, a discharging plate is slidably matched with the lower surface of the top plate, a transverse plate is fixed to one side of the discharging plate, and one end of the transverse plate penetrates through the top plate and is fixedly provided with an end plate. According to the rhizome medicine dipping device for agricultural production, automatic salvage of rhizomes can be achieved, workers can conveniently load and unload the rhizomes, and the rhizome medicine dipping device can be suitable for large-scale rhizome medicine dipping treatment.

The invention aims to provide the cardio-pulmonary resuscitation equipment integrating pressing, ventilation, defibrillation and monitoring functions, a back plate and a chest strap are arranged on the lower portion of a rack, a pressing unit and a breathing unit are arranged on the upper portion of the rack, a bag strap is arranged in the chest strap, a plurality of defibrillation electrodes and ECG electrodes are arranged on the inner surface of the chest strap, and the bag strap and the ECG electrodes are connected with each other. The bag belt is inflated to wrap the chest of the patient and meanwhile presses the defibrillation electrode and the ECG electrode to be tightly attached to the skin of the patient. According to the scheme, pressing, ventilation, defibrillation and monitoring functions are integrated into an integrated structure, and different functions work cooperatively, so that the efficiency of equipment is greatly improved, and the operation convenience is improved. Meanwhile, front-back pressing and circumferential contraction are combined together, the pressing unit inflates the bag belt while pressing the chest of the patient, and the bag belt tightly wraps the chest of the patient, so that higher intrathoracic pressure change, larger blood flow and higher autonomous circulation recovery rate are provided.

According to the preparation method of the woven preform based on resin powder filling, thermoplastic resin powder is heated to a semi-molten state through a resistance wire in the three-dimensional weaving process, so that the thermoplastic resin powder is attached to the surface of a yarn bundle, and hot-pressing curing can be directly carried out after the preform is formed; compared with the traditional process, the method has the advantages that the near-net forming advantage of the weaving process is reserved, the resin impregnation process can be avoided, the production efficiency is improved, the rapid forming is realized, the problems of non-uniform resin impregnation, large pore volume, glue shortage and the like caused by poor resin fluidity can be avoided, the quality of the woven composite material product is improved, and the mechanical property of the finished product is guaranteed.

According to the cotton bale lifting carrier, two lifting plate shafts are symmetrically arranged on a lower frame of the carrier, lifting plates are installed at the two ends of each lifting plate shaft, each lifting plate is of an arc-shaped surface structure, the lifting plates on the two lifting plate shafts are symmetrically arranged, the arc-shaped surface structures are arched inwards, and a cotton bale carrying cavity is formed in the inner side of each arc-shaped surface structure; the two lifting plate shafts are provided with the auxiliary turnover devices for controlling the lifting plates to turn forwards and backwards, the lifting plates are arc-shaped faces in an outer drum shape, pure rolling is formed between the lifting plates and the arc-shaped faces of the cotton bales, it can be guaranteed that the lifting plates and the cotton bales are tightly combined and do not slide, and friction damage to packaging materials on the outer surfaces of the cotton bales during movement can be reduced; the lifting cotton bale carrier mounted on the elevated track can grab and clamp cotton bales, air transportation of the cotton bales is stably achieved, and the cotton bales are unloaded after the cotton bales arrive at places.

The invention discloses a novel lithium battery folding device, comprising a left and right pushing mechanism of a bevel blade pressure block, an unlocking roller mechanism and a folding action mechanism, wherein the left and right pushing mechanism of the bevel blade pressure block is fixed to a first up and down pushing device by screws, and the left and right pushing mechanism of the bevel blade pressure block comprises an adjusting nut, a left and right pushing device, a bevel blade upper pressure block mounting seat, a bevel blade adjusting block and a bevel blade upper pressure block; the folding action mechanism is fixed to the mounting base plate by bolts; the folding action mechanism comprises a folding roller, a roller connecting rod, a guide rail mounting vertical plate and a fourth up and down pushing device; the unlocking roller mechanism is fixed to the guide rail mounting vertical plate by bolts; the unlocking roller mechanism comprises an unlocking roller, an unlocking roller mounting plate, a connecting plate, a first linear motion pair mechanism and a third up and down pushing device; the invention has fewer adjusting mechanisms, reduces the workload of debugging personnel, has high folding quality and high folding efficiency.

This utility model discloses a low-friction high-speed rotating motor rotor assembly structure, including a shaft and a rotor. The rotor is sleeved on the shaft, and a stator is sleeved on the rotor. A connecting ring sleeve is sleeved on the shaft, and a liquid storage cavity is formed in the connecting ring sleeve. The liquid storage cavity contains lubricating oil and a sponge sleeve. Multiple protrusions are circumferentially fixedly connected to the shaft, and multiple strip grooves are formed circumferentially on the shaft. In this utility model, the shaft rotates at high speed, driving the protrusions to rotate at high speed as well. The protrusions can squeeze the sponge sleeve, and the squeezed lubricating oil falls into the strip grooves. The lubricating oil can lubricate and cool the shaft. Some of the lubricating oil flows from the strip grooves into the vertical grooves, and then into the ring grooves, cooling and lubricating the rotor. This avoids the rotor working in a high-temperature environment for a long time, reduces frictional damage caused by high-speed rotation, and improves the service life of the rotor.

The utility model relates to pipeline joint technical field, and disclose rail transit elbow joint, include: elbow joint, the inner wall of end portion and elbow joint is slidably arranged, wherein, the connecting pipe is connected with the setting of dismounting component between elbow joint, and the end portion of this connecting pipe has the sealing assembly setting with the inner wall of elbow joint. The outer wall of connecting pipe close to the one end of elbow joint has the first annular groove and second annular groove setting, the inner wall of first annular groove is closely contacted with the end surface of elbow joint and is set. The rail transit elbow joint, realizes firm connection through dismounting component, and in sealing assembly, sealing clamping body protruding end and sealing clamping seat arc sealing groove accurate clamping, increase the contact area, effectively prevent medium leakage, ensure that the sealing performance reliable at joint, and the preliminary contact structure of connecting pipe and elbow joint can also assist positioning, improve the connection accuracy.

The utility model discloses a rotary anti-perching piece which comprises a rotary support, connecting holes are formed in the upper portions of the two sides of the rotary support, pin shafts are fixedly connected into the connecting holes, rotary connecting frames are rotatably connected to the pin shafts, and four anti-perching connecting frames are fixedly connected to the rotary connecting frames in a rectangular array mode. A V-shaped anti-habitat support is fixedly connected between every two adjacent anti-habitat connecting frames, the two ends of the two anti-habitat supports are fixed to the anti-habitat connecting frames to be of an X-shaped structure, and a plurality of reinforcing structures are arranged in the middles of the anti-habitat supports. Through the arrangement, the rotary anti-perching piece disclosed by the utility model can realize 180-degree rotation and high-degree-of-freedom adjustment, so that the anti-perching function is realized.

The application discloses a flood releasing device for hydraulic engineering, which comprises a flood releasing base, a water retaining wall and a flood releasing gate, a flood releasing groove is formed in the flood releasing base, the flood releasing gate is arranged on one side of the flood releasing groove, the flood releasing gate comprises a gate, a portal frame, a screw rod, a driving assembly and a hand wheel, a flood releasing hole is formed in the gate, the portal frame is fixedly arranged on the top of the flood releasing base, a sliding groove is formed in the portal frame and the flood releasing base, and the gate is slidably connected with the sliding groove. The flood releasing device for hydraulic engineering integrates a separate opening and closing assembly on the main gate, when only small flow needs to be released, the heavy main gate does not need to be driven, and only by controlling the opening degree of the cover gate, stepless and fine adjustment of the flow can be realized, the operation response is fast, the energy consumption is low, when large flow needs to be released, the cover gate can be closed first, then the main gate is lifted, full opening degree flow releasing is realized, and the flexibility and working condition adaptability of the flood releasing operation are enhanced.

The utility model discloses a flat steel bundle head pressing machine, and belongs to the technical field of flat steel packing. A head pressing machine for a flat steel bundle can flatten twisted heads on the flat steel bundle and comprises an installation frame, a supporting plate capable of sliding is arranged at the upper end of the installation frame, two supporting rods are fixed to the upper end of the supporting plate, the flat steel bundle is placed on the supporting rods, and two clamping plates capable of synchronously and reversely sliding are arranged on the supporting plate. The sliding direction of the clamping plate is parallel to the sliding direction of the supporting plate. A pressing plate assembly is arranged on the mounting frame and comprises a fixing frame fixed to the upper end of the mounting frame, a pressing plate capable of ascending and descending is arranged on the fixing frame, and the pressing plate can make contact with the upper end face of a flat steel bundle and flatten a twisting head, so that the twisting head cannot interfere with the flat steel bundle at the upper end in the stacking process, and compared with manual knocking of the twisting head, the twisting head is not prone to being damaged. The efficiency is improved, and meanwhile manpower is saved.

The invention discloses a logistics transportation loading and lifting device and method, and relates to the technical field of logistics transportation, the logistics transportation loading and lifting device comprises a base, a top plate is fixedly mounted at the top of the base, a balancing weight is fixedly mounted at the top of the top plate, a support is fixedly mounted at the front part of the top plate, and a protection device is arranged on the left side of the support; a clamping device is arranged on the front portion of the support, a lubricating device is arranged on the top of the support, the protective device comprises a motor, a gear, a chain, an L-shaped rod, a sliding rail, a pulley, a protective plate and a first slope block, the pulley is driven to slide on the sliding rail through movement of the protective plate, and the protective plate extends out to stop people from approaching a dangerous area when goods are lifted. Potential safety accidents are avoided, it is ensured that goods cannot fall onto surrounding personnel, additional protection is provided, accidental injuries are avoided, and the situation that the personnel mistakenly enter a working area to cause the safety accidents is prevented.

This utility model discloses a novel LED backlight module that is convenient for transportation, relating to the technical field of backlight module technology. The utility model includes an outer frame, with a baffle connected to the upper part of the inner side of the outer frame. Buckles are connected to both sides of the baffle, and a cushioning pad is connected to the bottom of the baffle. Through the baffle and buckles, this utility model effectively shields the light-shielding film and the bent flexible flat cable, preventing direct contact and friction with other modules during transportation. Simultaneously, the buckles securely fasten the baffle to the top of the outer frame, and the abutment between the baffle and the inner wall of the outer frame around its perimeter comprehensively restricts the vertical and horizontal displacement of the baffle, ensuring the stability of the protective structure and reducing the risk of damage to the light-shielding film and flexible flat cable. This facilitates the protection of the light-shielding film and flexible flat cable during transportation.

The utility model discloses a calibration device for propulsion beam production, which comprises a measuring frame, two mounting cavities are arranged on the measuring frame, one side of the measuring frame is fixedly connected with a depth graduated scale, and a plurality of calibration assemblies are arranged in the two mounting cavities; the calibration assembly comprises an anti-deviation rod fixedly connected to the inner wall of one side of the installation cavity, the anti-deviation rod is sleeved with a telescopic sleeve in a sliding mode, one end of the telescopic sleeve extends out of the measuring frame in a sliding mode, and one end of the telescopic sleeve is fixedly connected with a rolling wheel. The calibration device for propulsion beam production is convenient to use. And the arranged calibration assembly can measure the inner wall gap of the propelling beam, so that calibration can be performed when the inner wall gaps of different sections of the propelling beam deviate, subsequent use can be facilitated, and friction damage is reduced.

The utility model belongs to the technical field of logistics, and particularly relates to a branch guide structure for flexibly sorting cigarettes, which comprises a support frame, a plurality of groups of conveying main bodies are mounted in the middle of the supporting frame, and the conveying main bodies are rotationally arranged in the middle of the supporting frame; a plurality of groups of storage boxes are fixedly connected to the middle part of the support frame; two groups of first sliding barrels are fixedly connected to the outer wall of the storage box; the bottom wall of the first sliding cylinder is fixedly connected with a first spring. The frame is arranged in a matched mode to extrude the multiple stacked tobaccos downwards, the problem that the tobaccos are prone to being fully stacked when collected in the storage box due to the fact that the tobaccos are different in shape of tobacco leaves and are in a bulged state can be solved, the storage space in the storage box is increased, and meanwhile the frame which can be retracted is arranged, so that the storage box is convenient to store. The problem that the tobaccos falling into the storage box from the top of the conveying main body are blocked by the top of the frame and are bent and damaged can be solved, and the problem that the tobaccos are rubbed and damaged when the frame makes contact with the tobaccos can be solved in cooperation with the rotating wheels.