115results about How to "Avoid excessive wear" patented technology

The present invention discloses a grinding device for processing a brake disc, which relates to the technical field of brake disc processing, and comprises a box body and a brake disc body. A placing table is rotatably installed on the top of the box body, and the brake disc body is installed on the top of the placing table. A fixed frame is fixedly installed on one side of the box body, and a mobile frame is arranged on the fixed frame. A first cross bar is arranged on one side of the mobile frame, and a grinding component for grinding the upper and lower surfaces of the brake disc body is arranged on the first cross bar. The grinding device for processing a brake disc realizes reciprocating and uniform grinding of the brake disc body by a surface grinding piece through a series of mechanical linkage structures driven by a driving motor. This mechanized grinding method is more accurate and stable than manual operation, and effectively improves the grinding efficiency and quality.

The invention relates to the technical field of life cycle traceability, in particular to a full life cycle traceability system and method based on intelligent washing. The method comprises the following steps: acquiring washing clothes and user information, generating an RFID identification code, binding the RFID identification code with the user information, creating a user-clothes binding relationship, performing digital mirror image copying on the binding relationship, generating a clothes data file in combination with a database chain technology, and predicting the service life of the clothes by analyzing clothes state data and predicting the service life of the clothes. And making a personalized washing plan. And executing the washing plan and monitoring the washing result, and finally updating the clothes data file according to the washing effect to generate a washing traceability file. According to the invention, safer and more accurate full-life-cycle traceability operation is realized.

This invention relates to the field of flatbed semi-trailer technology and discloses a transversely retractable low-bed semi-trailer, including a vehicle body assembly. A traction rotating body and a ladder assembly are respectively provided at both ends of the vehicle body assembly. A rotating hinge is hinged to one end of the traction rotating body near the vehicle body assembly. A second hydraulic cylinder is hinged to one end inside the traction rotating body. Gooseneck opening and closing beams are hinged to both sides of the traction rotating body, and opening and closing connecting arms are hinged to the gooseneck opening and closing beams. This invention uses the movable ends of the first hydraulic cylinders at both ends of the top of the vehicle body assembly to drive the connecting rod to rise and fall, allowing the bottom ball of the connecting rod to extend to the bottom of the vehicle body assembly for support. This reduces wear on the bottom of the vehicle body assembly during retraction and opening / closing, achieving smooth retraction and opening / closing of the vehicle body assembly. Simultaneously, it avoids the problem of severe wear caused by high-load retraction and opening / closing of the opening and closing components inside the traction rotating body.

The invention relates to the technical field of grinding, in particular to a motor shell polishing and grinding device which comprises a shell, a first grinding assembly and a second grinding assembly are arranged in the shell, and the first grinding assembly and the second grinding assembly are arranged in a bilateral symmetry mode and are the same in structure. The first grinding assembly comprises an upper chain wheel and a lower chain wheel which are arranged in a vertically spaced mode, the axis of the upper chain wheel and the axis of the lower chain wheel both extend in the front-back direction, the upper chain wheel and the lower chain wheel are jointly sleeved with a chain, and a plurality of grinding units are evenly distributed in the circumferential direction of the chain. Each grinding unit comprises a plurality of supporting shafts extending in the front-back direction, the supporting shafts are evenly distributed in the up-down direction and fixedly arranged on the chain, the number of the supporting shafts is larger than or equal to four, rotating rollers are rotationally arranged on the supporting shafts located at the uppermost end and the lowermost end in the same grinding unit, and the two rotating rollers are jointly sleeved with a grinding belt. The service life of the polishing belt is prolonged.

The utility model discloses a single battery and relates to the technical field of batteries, the single battery comprises a shell and a cover plate assembly, the end part of the shell is provided with an opening, the outer side wall of the shell at the opening is shrunk inwards, the cover plate assembly is welded at the opening of the shell, and a welding bulge is formed between the cover plate assembly and the shell, the thickness of the welding protrusion is smaller than or equal to the maximum distance that the outer side wall, at the opening, of the shell shrinks inwards. In the technical scheme provided by the embodiment of the invention, the welding bulge formed by welding the cover plate assembly and the shell is arranged at the sunken position of the shell, and the welding bulge does not exceed the outer surface of the shell, so that the situation that the battery cannot be flatly placed due to the convex position of the welding bulge when the battery is laterally placed is avoided; and the outer coating film at the welding bulges is abraded due to overlarge local stress, so that the problem that the outer coating film is seriously abraded due to large contact local stress of the welding bulges between the adjacent battery monomers when a plurality of battery monomers form a module is solved.

The utility model provides a tricycle brake disc relates to brake disc technical field, including the support shell, the top fixedly connected with two support blocks of support shell, the top of support block is established with the axle hole, the bottom fixedly penetrates to the bottom of support shell of axle hole, the top of support shell is provided with the rotating lever, the top fixedly connected with the rotating plate of rotating lever, two the top of rotating plate is provided with the support plate, the inner wall rotationally connected with the axle of axle hole. The utility model, through fixedly connecting two support blocks in the top of support shell, and establishing the axle hole in the top of support block, makes rotating lever can drive rotating plate to carry out effective rotation control, the rotary connection of rotating plate and support plate makes whole brake system can realize more even brake force distribution, especially, in the design, the inner wall fixedly connected baffle of brake shell's one side, and fixedly connected through the spring, makes baffle can rebound quickly in the brake process, ensures that the contact of brake shoe and brake disc is more even.

This utility model discloses a pulse dust collector, belonging to the field of dust removal technology. It aims to solve the problem that in existing pulse dust collectors, the filter bags wear down when handling dust-containing gas. Furthermore, the different sizes of dust particles entering the dust collector cause the filter bags to wear down even faster when filtering large dust particles, ultimately affecting the dust removal efficiency of the pulse dust collector. The device includes a pulse dust collector body, with a high-pressure air pump installed at the upper end. A filter mechanism is installed at the air inlet at the lower end of the pulse dust collector body. The filter mechanism includes a connecting plate connected to the lower front side of the pulse dust collector body. A dustproof net is fixedly connected to the middle of the connecting plate. Mounting blocks are fixedly connected to the upper and lower ends of the left and right sides of the connecting plate. Support blocks are fixedly connected to the four corners of the left and right front sides of the pulse dust collector body at the air inlet.

The utility model belongs to the field of wood processing, and particularly relates to a plate punching fixing structure which comprises a fixing table, a square window is vertically formed in the middle of the fixing table in a penetrating mode, a funnel-shaped recycling plate is fixed to the lower end face of the middle of the fixing table and located at the lower end of the square window, and sliding grooves are formed in the two sides in the square window. A plurality of supporting frames are slidably arranged in the sliding groove at equal intervals, a supporting plate is embedded in the front end face of the fixing table, a plurality of cross-shaped connecting rods are sequentially connected to the two sides of the rear end face of the supporting plate, connecting screw rods vertically penetrate through the two ends of the supporting frames, and the upper ends of the connecting screw rods penetrate through the centers of the cross-shaped connecting rods; by means of the multiple crossed connecting rods, the supporting frame can be conveniently adjusted at equal intervals, excessive abrasion caused by the fact that the punches make contact with the fixing table during punching is avoided, meanwhile, by means of the funnel-shaped recycling plate, the quality and precision of punched holes are improved, and meanwhile the working efficiency of punching is improved.

The utility model relates to the technical field of cutter grinding devices, and discloses a grinding device for cutter machining, which comprises a workbench, a first motor is fixedly connected in the workbench, a threaded rod is fixedly connected to the output end of the first motor, a threaded sleeve is in threaded connection with the outside of the threaded rod, and a second motor is fixedly connected to the threaded sleeve. First hinge blocks are fixedly connected to the two sides of the threaded sleeve correspondingly, adjusting rods are rotationally connected to the interiors of the first hinge blocks, the other ends of the two adjusting rods are rotationally connected to the interiors of second hinge blocks correspondingly, and moving plates are fixedly connected to the upper portions of the two second hinge blocks correspondingly. The sides, away from each other, of the two moving plates are fixedly connected with second motors. According to the tool clamping device, a tool can be effectively driven to rotate after being clamped, the product quality and the machining efficiency are improved, chippings, dust or sputtering objects generated in the tool grinding process can be effectively prevented from splashing out, and the working safety is improved.

The utility model discloses a cleaning mechanism of a forming machine, which belongs to the technical field of forming machine cleaning and comprises a forming machine body and a cleaning mechanism main body arranged on the forming machine body. The cleaning mechanism body comprises a cleaning piece used for cleaning the forming machine body, a driving piece used for driving the cleaning piece to move and a mounting frame used for mounting the driving piece. A mounting plate is arranged on the forming machine body, and the mounting frame is detachably connected with the mounting plate; the output end of the driving part is in transmission connection with the cleaning part so as to drive the cleaning part to reciprocate in the direction parallel to the to-be-cleaned surface of the forming machine body. Compared with a manual cleaning mode and a traditional mechanical cleaning mode, the cleaning mechanism of the forming machine with the structure has the advantages that the cleaning efficiency is greatly improved, the cleaning time is shortened, and continuous and stable operation of the forming machine is guaranteed.

This utility model relates to the field of soil research technology and discloses an equidistant sampling device suitable for the study of soil pollutants in agricultural land. It includes a support plate with a scale fixedly connected to its top. Two I-shaped grooves are formed at the top of the support plate, and two I-shaped sliders are slidably connected to the inner walls of the two grooves. Two pedals are fixedly connected to the tops of the two sliders. The operator first determines the sampling interval according to the research requirements. Then, the operating parameters of the bidirectional motor, such as speed and direction of rotation, are set via the control panel. After starting the bidirectional motor, its output drives a bidirectional screw to rotate. Due to the bidirectional thread characteristic of the bidirectional screw, the two moving sleeves connected to the surface of the bidirectional screw will move in opposite directions at equidistant intervals along the screw. The operator can then observe the position of the pointer on the scale.

The present application relates to a clutch assembly (200) comprising: a drive hub (210) having a spline configured to be coupled to a gearbox (130); a clutch housing (220) coupled to the drive hub and having an end face (222) defining an opening (223) therein; a clutch hub (230) provided within the clutch housing and having a portion extending beyond the opening, the clutch hub being rotatable relative to the clutch housing in a slipping state; a primary seal (240) disposed between the clutch housing and the clutch hub; an amount of a cleaning compound (250) disposed between the clutch housing and the clutch hub; and an end washer (260) coupled to the clutch hub and facing the end face, the end washer and the end face defining a cleaning gap (261) therebetween such that rotation of the clutch hub relative to the clutch housing causes some cleaning compound to exit from the clutch housing through the cleaning gap.

A detent device for a toner container includes a detent main body (1-3), and a detent mouth (1-1) which is located at one side of the detent main body (1-3) and has a U-shaped, C-shaped, V-shaped, L-shaped, groove-shaped, trapezoidal or curved structure. A rotating disc for a toner container includes a rotating disc main body (3-8), a detent device mounted on the rotating disc main body (3-8) and includes a detent mouth (1-1), a fixed gear (7) connected with the rotating disc main body (3-8), a detent gear (5) linked with the detent device, and a bridge gear (6) engaged between the detent gear (5) and the fixed gear (7). A conveying device for a toner container includes the rotating disc. The present invention has a good structural sealing performance, is simple, and has less abrasion between parts; key structures are not damaged; and the maintenance cost is reduced.

The invention discloses a putting device and clothes processing equipment. The putting device comprises a first putting unit, a second putting unit and a power unit which is in transmission connection with the first putting unit and the second putting unit through a first clutch mechanism and a second clutch mechanism. The first putting unit comprises a putting cavity, a rotating piece rotationally arranged in the putting cavity and an elastic piece capable of being bent and deformed. The rotating piece comprises a rotating shaft, the elastic piece is connected with the side wall of the rotating shaft and extends towards the periphery, and the extending tail end slidably abuts against the side wall of the throwing cavity; the rotating piece is in transmission connection with the power unit, and the axis of the rotating shaft and the axis of the throwing cavity are eccentrically arranged, so that the elastic piece bends and deforms along with rotation of the rotating shaft. In the invention, the power unit can control one of the first putting unit and the second putting unit to put, the volume of the closed space between the two elastic sheets in the putting cavity is continuously changed by utilizing the bending deformation of the elastic sheets, the clothes treating agent can be sucked / discharged, and the automatic putting function is realized.

The present invention discloses a control method and system for an out-of-furnace heat preservation roller table. The method includes: arranging a first heat detector beside the starting roller of the heat preservation roller table and a second heat detector beside the end roller of the heat preservation roller table. The first heat detector is close to the heating furnace, and the second heat detector is close to the rolling mill; when the first heat detector detects a billet, switching the roller speed in the heating furnace to keep it synchronized with the speed of the heat preservation roller table; when the current billet enters the rolling mill along the heat preservation roller table and receives a signal of steel biting, switching the speed of the heat preservation roller table to keep it synchronized with the rolling mill speed; when the second heat detector detects the arrival of the falling edge of the signal, increasing the speed of the heat preservation roller table to make the next billet move forward quickly along the heat preservation roller table until the arrival of the next steel biting signal. By specifically adjusting the speed of the heat preservation roller table, the present invention avoids roller wear and power loss, saves the cost of replacing rollers and spare parts, and reduces work delays and time delays.

The utility model relates to the technical field of electric bicycles, and discloses a self-balancing control electric bicycle which comprises a frame, a driving assembly and a saddle are arranged on the top of the frame, and a fixed connection plate is fixedly connected to the side wall of the frame. According to the chain oiling device, the electric push rod extends through the timing switch, so that lubricating oil flows onto a chain after passing through the oil discharge pipe when air in the air cavity is pressed into the oil storage box, and therefore regular oiling and oiling of the chain can be achieved; the problem that the chain is excessively worn due to oil shortage caused by the fact that an electric bicycle user forgets to coat the chain with oil for a long time is solved; when the rainwater sensor senses that rainwater exists on the saddle, the miniature air pump is turned on, external air is fed into the heating pipe to be matched with the heating piece to be heated, then the air is blown to the saddle from the air blowing head, air blowing and water removal on the saddle can be achieved, and therefore the rainwater on the saddle can be removed when it rains; the trouble that a user of the electric bicycle for controlling self-balance needs to find a rag to wipe rainwater is saved.

The application relates to the technical field of insulator manufacturing, and discloses a roughing device for an electric porcelain insulator blank, which comprises a rack, a mold is rotationally connected to the upper surface of the rack, and a lifting frame is slidably connected to the outer surface of the rack; an adjusting shaft is rotationally connected to the outer surface of the lifting frame, a first roughing cutter and a second roughing cutter are fixedly connected to one end of the adjusting shaft, and a first adjusting assembly is arranged at the other end of the adjusting shaft and used for controlling the rotating angle of the adjusting shaft. The roughing device for the electric porcelain insulator blank can effectively solve the problem that, when the cutting amount of the blank is large, the cutting resistance of the roughing cutter is large, the roughing cutter vibrates, scratches, unevenness, burrs and other defects appear on the surface of the blank, the surface flatness is reduced, the size precision of the electric insulator blank is reduced, and the electrical performance and appearance of the insulator are affected.

A jig for rapidly removing stamping knife aluminum slag comprises a bottom plate, a knife fixing device and two sliding rails are arranged on the bottom plate, the two sliding rails are arranged in parallel, each sliding rail is provided with two sliding blocks, a driving device is arranged on the bottom plate, the power output end of the driving device is connected with the sliding blocks, and the power output end of the driving device is connected with the sliding blocks. The upper side of each sliding block is fixedly provided with a vertical guide rod, each guide rod is sleeved with a supporting sleeve, the supporting sleeves are detachably connected with the guide rods, the portions, on the upper sides of the supporting sleeves, of the guide rods are sleeved with guide sleeves, the upper sides of the guide sleeves are fixedly connected with mounting plates, and the mounting plates are arranged on the guide rods in a sleeving mode. A motor is mounted on the upper side of the mounting plate, and an output shaft of the motor penetrates through the mounting plate downwards and then is connected with a brush head. The rodless air cylinder and the motor are adopted to drive the brush head to move and rotate, automatic reciprocating cleaning is achieved, stamping knife aluminum slag can be rapidly and effectively removed, and the cleaning efficiency is greatly improved.

This utility model discloses a cargo sorting conveyor belt diversion device, which includes a conveyor belt: an image size detector and a control box are fixedly mounted on the surface of the conveyor belt by bolts; a material-distributing plate is installed on the top of the conveyor belt; a material box is arranged on the outer side of the conveyor belt; a diversion hopper is rotatably connected to the surface of the conveyor belt via a rotating shaft; a horizontal plate is welded to the bottom of the conveyor belt; two symmetrically arranged vertical rods are welded to the bottom of the horizontal plate; a U-shaped locking block and a strip plate are arranged below the horizontal plate; and a force-bearing plate is welded to the bottom of the diversion hopper. This utility model uses a frame plate to drive the strip plate to move horizontally, causing the strip plate to push the force-bearing plate and drive the diversion hopper to rotate on the surface of the conveyor belt. Subsequently, the frame plate returns to its original position, and the diversion hopper swings back to its original position under gravity. This achieves the purpose of swinging the diversion hopper to improve the uniformity of cargo distribution when entering the material box, avoiding the need for subsequent shaking of the material box for even distribution.

The utility model discloses a full-automatic bolt derusting machine, and relates to the technical field of bolt derusting, the derusting machine comprises a derusting box, the side wall of the derusting box is communicated with a feeding box, the side wall of the feeding box is communicated with a soaking box, a plurality of fixing rods are arranged at the bottom in the derusting box, the tops of the fixing rods are fixedly provided with angle steel slideways, and the angle steel slideways are fixedly connected with the bottom of the derusting box. Grinding wheels are symmetrically and movably arranged on the two sides of the angle steel sliding way, the bolt rust removal device further comprises a feeding mechanism and an adjusting mechanism, the feeding mechanism used for moving bolts subjected to rust removal maintenance to the angle steel sliding way is arranged in the feeding box, and the adjusting mechanism capable of adjusting the distance between the grinding wheels is arranged in the rust removal box. According to the bolt derusting machine, the effect of conveniently derusting bolts of different specifications is achieved, a rotating handle is rotated to drive a two-way lead screw to rotate, so that a threaded block is driven to move, a gap between two polishing wheels is adjusted to adapt to the bolts of different specifications, the bolts are prevented from being excessively abraded or damaged in the derusting process, and the derusting quality of the bolt derusting machine is improved.

The invention provides a multifunctional nodular cast iron straight pipe special coating production line, and belongs to the technical field of waste gas treatment. Comprising a preheating device, a spraying device, a curing device and a waste gas treatment device, the preheating device is connected with the spraying device, the spraying device is connected with the curing device, the spraying device is connected with the waste gas treatment device, and the waste gas treatment device comprises supporting legs. By arranging the gear motor, the filter cylinder and the cylinder body, when the waste gas treatment device runs, the gear motor drives the filter cylinder to rotate, so that activated carbon is turned over, waste gas turbulence is promoted, the gas-solid relative speed is increased, the mass transfer process is enhanced, pollutants are more quickly diffused to the surface of the activated carbon to be adsorbed, the adsorption rate is increased, and the waste gas retention time is shortened; the activated carbon is fully overturned to be in contact with the waste gas, local premature saturation can be avoided, the adsorption capacity of the activated carbon is fully utilized, more waste gas can be treated under the condition of the same use amount of the activated carbon, and the operation economy and the waste gas treatment effect are improved.

The utility model relates to the field of clothes rails, in particular to a clothes rail with a protection function, which comprises a clothes rail body and two end plates, the clothes rail body is detachably mounted between the two end plates through a plug-in component, a protection component is detachably mounted at the top of the clothes rail body, fixing components are arranged on the end plates, and the protection component is detachably mounted on the top of the clothes rail body. The clothes rail has the advantages that the surface of the clothes rail body can be effectively protected, so that serious abrasion between the surface of the clothes rail body and the surface of a clothes hanger is effectively prevented, long-term use of the clothes rail body is facilitated, the clothes rail body is convenient to disassemble and assemble, maintenance and replacement are convenient, rubber protection strips are convenient to replace, and the clothes rail is convenient to use and suitable for popularization.

The invention discloses a robot mowing machine system which comprises a robot mowing machine working in a working area limited by a boundary line; a charging station; the user terminal is connected with the robot mower and is used for setting working parameters of the robot mower, and the working area is divided into a main working area and a secondary working area; when the robot mower is located in the main working area, the robot mower works according to a first working state based on the setting of the user terminal; and when the robot mower is located in the secondary working area, the robot mower works according to a second working state based on the setting of the user terminal. According to the invention, the work of the robot mower can adapt to different working areas and different mowing scenes.

The present application relates to tap processing technical field, specifically to tap chip machine, the inside of machine tool equipment is provided with drive assembly, the front end of drive assembly is provided with polishing clamping disc, the front end of polishing clamping disc is uniformly fixed and installed with multiple clamping shells, the both ends of each clamping shell are slidably installed with moving clamping rod, one end of each moving clamping rod is fixedly installed with clamping block in clamping shell, the other end of each moving clamping rod is rotatably installed with push rod, every two corresponding push rods are rotatably connected, a plurality of limiting holes are uniformly formed on each polishing clamping disc, the hinged end of every two corresponding push rods is installed with sliding rod in limiting hole, and a limiting shell is fixedly sleeved on each sliding rod and located at the rear side of polishing clamping disc. By polishing the edge of tap, the edge burrs of batch taps can be polished and removed, effectively avoiding defects such as scratches and indentation on the surface of workpiece thread during tapping, thereby prolonging the overall service life of tap.

The utility model belongs to the technical field of cement transport vehicles, and discloses a mining cement mixing transport vehicle which comprises a frame and a double-brake guarantee mechanism, a front drive axle, a power source and a rear drive axle are sequentially installed on the frame from front to back, and normally-closed brakes are installed on the front drive axle and the rear drive axle respectively. Each normally-closed brake comprises a brake body, a brake cavity is formed in each brake body, a plurality of brake discs which are coaxially arranged in sequence are installed in each brake cavity, and a spring brake assembly used for pressing or loosening the brake discs is arranged on one side of each brake disc. Hydraulic oil ways are formed between the peripheral walls of the spring brake assemblies and the inner wall of the brake cavity and communicate with a hydraulic oil way on the frame; according to the utility model, the normally closed brake is adopted, and a double-brake guarantee structure is arranged, so that the safety performance of the vehicle in a flameout state or under the condition of sudden failure is guaranteed in all directions, and the stability and reliability of the brake function are guaranteed.

The invention provides a cognitive training device, which relates to the technical field of cognitive training, and comprises a mounting support part, the mounting supporting part is fixedly connected with a foot lifting auxiliary adapter; a foot lifting cognition adjusting part is mounted on the foot lifting auxiliary adaptive part; the foot lifting cognition adjusting part is fixedly connected with two road surface inclination detecting parts; the foot lifting cognition adjusting part is rotationally connected with a ground auxiliary attaching part. The device can assist in foot lifting height detection and training work, effectively improves the leg control force of a patient, can train the action cognition of the patient, better judges the leg lifting height, effectively reduces the risk of stumbling and the like, and solves the problem that an existing cognitive training device is not provided with a leg lifting assisting cognitive control training structure, and the training effect is poor. The problems that when the legs of a patient cannot be controlled to be too high for a long time, leg lifting obstacles are likely to be caused, and the patient is very likely to be stumbled are solved, and meanwhile an auxiliary slope exercise simulation structure does not exist.

The utility model discloses an adjustable multi -section turning tool for turning processing, the tool holder is provided with the tool bar in the inner wall, the outer wall of tool holder is fixedly connected with the rubber pad in the symmetry, the outer wall of tool holder far away from rubber pad one side is opened the sliding slot in the symmetry, the outer wall of tool holder is opened the horizontal groove, the inner wall screw thread connection of tool holder top has the fixed screw, the utility model relates to turning tool technical field, this tool holder, through the tool bar of multiple groups length from short to long arrangement constitutes multi -section turning structure, can complete to the layered removal of bulky excess in one sequence processing, replaces traditional multi -process tool changing processing mode, and the tool changing frequency and processing time are reduced greatly, through the sliding connection of sliding plate and sliding slot, can expose or shield fixed screw quickly, effectively block turning waste entering screw gap, and can also be removed easily when replacing tool bar, reduce the cumbersome step of cleaning waste.

The present invention provides a combination roller cutter and drill bit capable of ring-shaped rock breaking, wherein the combination roller cutter capable of ring-shaped rock breaking comprises a support tube and a plurality of outer ring cutter heads, wherein the plurality of outer ring cutter heads are fixed to the lower end tube edge of the support tube at intervals along the circumference of the support tube, and the outer ring cutter head comprises a first cutter seat, a first roller cutter, a second cutter seat and two second roller cutters, wherein the first cutter seat is detachably mounted on the lower surface of the support plate, and the first roller cutter is rotatably mounted on the first cutter seat. The present invention effectively protects the first cutter seat and the second cutter seat by providing a combination roller cutter, thereby avoiding serious wear of the first cutter seat and the second cutter seat during the rock breaking process, avoiding the roller cutter from falling during the rock breaking process, ensuring the working efficiency of the rock breaking, and ensuring the normal construction period of the project.

The utility model provides a cold-drawing forming machine for a linear spring, which relates to the technical field of spring processing and comprises a cooling mechanism, and a main body mechanism is arranged at the top of the cooling mechanism. According to the metal wire cold-drawing device, lubricating oil in the cooling box can be cooled under the action of the cooling device, the circulating pump and the cooling pipe, and then the cooled lubricating oil is conveyed to be attached to the surface of a metal wire under the action of the conveying pump, the conveying pipe and the spray head, so that the metal wire is subjected to cold-drawing in the subsequent cold-drawing process; according to the cold-drawing die, friction between the cold-drawing die and the die is reduced, and heat generated by friction can be absorbed, so that the metal wire and the die are cooled, the problem that the cold-drawing die is seriously abraded due to too large friction force and too high temperature is solved, the service life of the cold-drawing die is prolonged, and the using effect of equipment is improved.

This utility model discloses a low-wear dustproof geared motor, including a mounting base. A dustproof device is provided above the mounting base. A drive motor is fixedly connected to the rear of the mounting base. A reduction gear is provided in front of the mounting base. The dustproof device includes a frame. Dustproof nets are fixedly connected around the frame. A fixing block is fixedly connected to the front of the dustproof net. A stabilizing bearing is provided in the middle of the fixing block. A fan is fixedly connected to the middle of the left and right dustproof nets. First mounting blocks are fixedly connected to the four lower corners of the frame. The reduction gear includes a housing. An input rod is provided at the rear of the housing. This structure improves lubrication and reduces overall wear; it also prevents most dust from adhering to the motor and reduction gear, reducing the impact of dust on the device.