46 results about "Bell jar" patented technology

The invention discloses an easy-to-clean antibacterial ceramic tile glazing device, relates to the technical field of glazing equipment, and aims to solve the problem that the glaze pouring range cannot be adjusted in the ceramic tile glazing process, so that the rotation consumption of glaze liquid is relatively large. According to the invention, a double-side glazing area is formed through the structural design of combining a glaze outlet flat nozzle with a glaze guide bar I and a glaze guide bar II which have the length equal to the diameter of a bell jar disc and are arranged in a crossed manner, and the glaze outlet flat nozzle structure is used for forming glaze liquid outlet limitation to form flat glaze distribution; the glaze liquid is continuously and bidirectionally applied in a double-side glazing area formed by the glaze guide bar I, the glaze guide bar II and the bell jar disc, and the glaze liquid and the double-side glazing area are combined to jointly form double-side continuous and uniform application so as to achieve absolute limitation on the glaze outlet amount and the glaze outlet area; namely, the continuous to-be-glazed ceramic tile can be subjected to double-side continuous glazing operation under the double limitation of the glaze output amount and the glaze output area in the glazing process, and the glazing device is suitable for glazing ceramic tiles with different sizes.

The invention relates to the technical field of electrolyte cleaning, and discloses an electrolyte cleaning system which comprises an anode unloading station, a tipping station, an anode scrap loading station, a pre-crushing station, a driving part, a shearing part, a hammering part, a cleaning part, a positioning part, a collecting part, a self-grinding part and an electrolysis bin, and the driving part is sequentially connected with the anode scrap loading station, the pre-crushing station, the shearing part, the hammering part and the cleaning part in series. The collecting part is located below the tipping station, the anode scrap loading station, the pre-crushing station, the shearing part, the hammering part and the cleaning part, a conveying piece is arranged between the autogenous grinding part and the electrolysis bin, the bottom surface of the driving part is slidably connected with a catenary, the lower end of the catenary is provided with a catenary bell jar, the catenary bell jar is detachably connected with a guide rod of an anode scrap group, and the hammering part is arranged right opposite to an output port of the shearing part. The cleaning part is arranged right opposite to an output port of the hammering part; the positioning parts are respectively arranged in the pre-crushing station, the shearing part, the hammering part and the cleaning part; electrolytes on the surfaces of multiple anode scrap groups can be cleaned at the same time, and the cleaning efficiency is improved.

The utility model provides a flange used for a bell jar standing cavity and the bell jar standing cavity, and the flange used for the bell jar standing cavity comprises an annular flange main body and an external connection part used for being connected with an external base, the external connecting part is arranged on the outer side wall of the flange main body; an annular butt joint groove used for being in butt joint with a bell jar standing cavity is formed in the upper end of the inner side wall of the flange body, and the bottom wall of the annular butt joint groove is connected with the inner side wall of the flange body through a first inclined face. The first inclined face is used for being matched with the bottom end face of the bell jar standing cavity to form a first groove used for welding when the bell jar standing cavity is embedded in the annular butt joint groove. According to the utility model, the effective length of the weld joint at the joint of the flange and the bell jar standing cavity is increased, so that the stress level of the weld joint in unit length is effectively reduced, the connection stability between the flange and the bell jar standing cavity is enhanced, and the overall rigidity of a final product is improved.

The utility model belongs to the technical field of detection equipment, and discloses a bell jar coaxiality and flatness detection device, which comprises a base, a center rod is arranged on the base, two extension rods are horizontally arranged on the center rod, and dial indicators are arranged at the end parts, far away from the center rod, of the extension rods; the center rod is connected with the base through a bearing; the extension rod is connected with the center rod through a screw arranged on the center rod in a penetrating mode. The two extension rods are positioned on the same central surface of the central rod; a boss is arranged on the base, and the outer edge of the boss is circular; the device can efficiently detect the coaxiality and flatness of the bell jar, and is simple in structure and convenient to operate.

The application discloses a kind of methods for detecting the transmittance of quartz reaction chamber of epitaxial equipment, including but not limited to esther200C, esther200L, LPE 3061S and LPE2061S epitaxial equipment, use external color camera with PLC industrial computer equipment to shoot the image of bell jar observation window and temperature measurement window area, select the light transmission area for analysis, divide the effective light transmission area into several microcircuits, calculate the RGB value of observation hole in each microelement area and the average value ratio of blue component and green component. By comparing the difference between the RGB value in the region and the standard value, and comparing the B / G ratio with the standard value set, the state of bell jar transmittance is identified.

The utility model relates to the technical field of flow regulation, in particular to an automatic flow regulation device of a bell jar type gas flow standard device, which comprises an automatic regulation device mounting total component, and a support plate is fixedly connected to the inner ring surface of the automatic regulation device mounting total component. According to the automatic flow adjusting device of the bell jar type gas flow standard device, through dislocation of a first circulation opening and a second circulation opening, the flow can be opened and closed, the flow can be adjusted, and therefore efficient automatic flow adjustment can be conducted; the clamping plate is fixedly connected with the surface of the side edge of the automatic adjusting device installation total component, the reset spring is inserted into the surface of the inner ring of the clamping plate in a limiting mode, and the automatic adjusting device installation total component can be installed in the bell jar type gas flow standard device in a clamping mode after the transmission rod is pushed by the reset spring.

The utility model provides an annular waste heat recovery system of a bell jar type annealing furnace. Comprising an annealing furnace, a first heat exchange tile block and a second heat exchange tile block are clamped to the bottom of the inner wall of the annealing furnace through clamping rods, and rectangular heat exchange grooves are formed in outer side shells of the first heat exchange tile block and the second heat exchange tile block at equal angles; mounting grooves matched with the clamping rods are formed in the inner wall of the first heat exchange tile block and the inner wall of the second heat exchange tile block at equal angles, hole grooves are formed in the middle sections of the mounting grooves, and the hole grooves located in the first heat exchange tile block and the second heat exchange tile block penetrate through the first heat exchange tile block and the second heat exchange tile block correspondingly; and heat exchange holes are formed in the top ends of the mounting grooves. The annular waste heat recovery system of the bell jar type annealing furnace solves the problems that an existing bell jar type annealing furnace is single in structure and high in energy consumption, waste heat of the annealing furnace is difficult to recycle, and energy is wasted.

The utility model belongs to the technical field of anode lifting appliances, and particularly relates to a double-pull anode lifting appliance device, which comprises a bearing beam and a main lifting lug, a dismounting structure is arranged below the bearing beam, the dismounting structure comprises a dismounting mechanism and an adjusting mechanism, the dismounting mechanism comprises an adjusting box, an adjusting plate, a pull rod, a wedge-shaped plate and a mounting block, the inner wall of the adjusting box is slidably connected with two ends of an adjusting plate, and one side of the adjusting plate is connected with one end of a pull rod. According to the double-pull anode lifting appliance device, an anode bar can be quickly and conveniently disassembled and assembled, the stability of the anode bar after being fixedly installed can be effectively improved, an installation block and a bell jar can be quickly and conveniently disassembled and assembled, then the double-pull anode lifting appliance device can be better used, and the problems that the bell jar, the installation block and the anode bar cannot be quickly and conveniently disassembled and assembled, and the service life of the bell jar, the installation block and the anode bar is shortened are solved. And the problem that the anode bar cannot be stably fixed through the stainless steel round steel pipe is solved, and the working efficiency of the lifting appliance device is improved.

The invention discloses a welding seam reinforcing process for a bell jar standing cavity and application of the welding seam reinforcing process, and the welding seam reinforcing process comprises the steps of pretreating the surface of a welding seam and reinforcing the welding seam by adopting a non-metal composite material. After the battery production equipment is reinforced through the weld joint reinforcing technology, the corrosion resistance, the pressure resistance, the fatigue resistance and the mechanical performance of the equipment can be remarkably improved, preventative reinforcement can be conducted on the production equipment, and service life prolonging reinforcement can be conducted on in-service production equipment.

A positioning device of an epitaxial furnace comprises a first positioning piece, a second positioning piece and a third positioning piece, the first positioning piece is fixed to the top surface of a flange through a connecting structure, and a mounting hole is formed in the positioning piece; the second positioning piece is located in the mounting hole, and the second positioning piece is used for fixing the distance between the top surface of the downstream end of the quartz cylinder and the top surface of the flange, so that the quartz cylinder is positioned at the corresponding position. The distance between the top surface of the downstream end of the quartz cylinder and the top surface of the downstream end of the quartz bell jar is fixed by arranging the first positioning piece fixed on the top surface of the flange and positioning one end in the mounting hole of the first positioning piece and positioning the other end on the top surface of the downstream end of the quartz cylinder; therefore, the position of the quartz cylinder can be quickly fixed at the corresponding position, the position of the quartz cylinder does not need to be adjusted for multiple times, the positioning accuracy of the position of the quartz cylinder is improved, and the positioning accuracy of the position of the reaction chamber and the production process efficiency are further improved.

The utility model discloses a tar collecting structure of a gas diffusion bell jar, which relates to the technical field of gas furnace equipment transformation and comprises a diffusion pipe and a rainproof cap, the rainproof cap is positioned above a diffusion port of the diffusion pipe, and a conical cap for collecting tar is arranged in the rainproof cap. The edge of a bottom opening of the conical cap is fixedly connected with the periphery of the inner wall of the rainproof cap, a circle of the bottom opening of the rainproof cap is fixedly connected with an annular groove, a plurality of through holes are formed in the side, close to the bleeder, of the annular groove, and the through holes fixedly communicate with chutes. According to the coal gas tar collecting device, coal gas rises into the rain-proof cap through the diffusing opening and then is blocked by the conical cap, tar is condensed, the tar slides down into the annular groove under the action of gravity and then flows back into the diffusing pipe through the through holes and the chutes, and therefore the good coal gas tar collecting effect is achieved.

This invention relates to the field of mechanical automation assembly and coking equipment technology, specifically to a coal charging hole cover assembly device and method for use in sealed coke oven environments. It includes an annular rotary base and indexing turntable, a traveling pallet equipped with positioning columns and pneumatic self-centering claws, multiple workstations, and an industrial control computer. The device utilizes the indexing turntable to drive the clamped coal charging hole cover blank, which sequentially flows between workstations such as tamping and filling, welding, feeding and grinding, and bell jar testing. Its core is to achieve continuous flow of the workpiece based on a single reference point using the traveling pallet, and to utilize a positive pressure dustproof air curtain to blow away scattered refractory dust. This invention abandons the traditional multiple lifting method, overcomes the secondary clamping errors caused by realignment in harsh environments, ensures the cleanliness of the clamping surface, and improves the dimensional and positional accuracy of the workpiece throughout the assembly process.

The utility model discloses a bell jar uniform cup and a bell jar type glaze pouring device.The bell jar uniform cup comprises a cup body and a discharge port, the cup body is provided with a cup opening, the cup opening is used for allowing glaze slip to flow in, the discharge port is formed in the side wall of the cup body, and the discharge port is used for discharging the glaze slip. The discharge outlet is formed in the side wall of the cup body, so that the glaze slip outflow mode is changed, the glaze slip flows out of the discharge outlet of the cup body, floating objects are effectively blocked in the cup body, the glaze pouring quality is improved, the structure is simple, and practicability is high.

The application discloses a kind of ultrafine grain LED brass preparation methods, comprising the following steps: S1: smelting cast H65 brass ingot, ingot is used semi-continuous casting process;S2: head and tail of brass ingot is removed;S3: after heating and heat preservation to brass ingot, hot rolling is carried out;S4: after hot rolling, rough rolling is carried out to the roll of milling face;S5: after annealing to the roll of annealing, it is washed and cut edge and is carried out medium rolling;S7: after remaining bottom material is carried out air cushion furnace annealing;S8: after the roll of air cushion furnace annealing is carried out, it is cleaned and washed, and after shearing, ultrafine grain brass strip can be obtained.The semi-continuous casting process is used, and the roll is annealed very uniformly by cooperating bell jar furnace and air cushion furnace, so that the grain size of LED brass product is very uniform, and 90% of the grain size is controlled in 1-2um.

This utility model discloses a calibration and bell-jar verification system for a wet gas flow meter based on a standard device combination, relating to the field of gas flow measurement technology. The bell-jar type gas flow standard device and the gas-liquid dual-purpose standard metal measuring vessel are sequentially connected by a first solenoid valve, a pressure sensor, a first temperature sensor, a wet gas flow meter, a flow regulating valve, and a fourth solenoid valve. The wet gas flow meter has a branch circuit. The inlet end of the gas-liquid dual-purpose standard metal measuring vessel is connected to a water tank via a pipeline. The outlet end of the gas-liquid dual-purpose standard metal measuring vessel is equipped with a drain valve and a three-way valve. The three-way valve is connected to a narrow-mouth bottle and the water tank via flexible conduits. An electronic balance is installed at the bottom of the narrow-mouth bottle. This utility model enables full-range calibration of the wet gas flow meter, calibration of the 0.2-grade standard wet gas flow meter, and verification and inspection of the bell-jar type gas flow standard device without disassembling the pipeline.

The invention discloses a shaft furnace magnesium reduction composite tank body structure which comprises a composite tank body (5) and is characterized in that a bell jar valve (6) and a crystallizer (7) are arranged on the lower portion in the composite tank body (5), the composite tank body (5) comprises an outer tank (51), an inner tank (52), a distribution rib plate (53), a closing-in section (54), a supporting plate (55), a slag discharging barrel (56) and a flange (57), the inner tank (52) is connected with the outer tank (51) through the distribution rib plate (53), holes are evenly distributed in the inner tank (52) to guide magnesium steam, and the flange (57) is connected with the outer tank (51) through the supporting plate (55). A supporting plate (55) is arranged at the bottom of the outer tank (51), and the outer tank (51) is connected with a deslagging cylinder (56) and a flange (57) below the supporting plate (55); the inner wall of the bottom of the outer tank (51) is connected with an inclined closing section (54), and the bottom of the closing section (54) is connected with a slag discharging cylinder (56). The structure is easy to manufacture, stable in use performance, long in service life, low in implementation cost, rapid and uniform in heat transfer, small in radiation heat loss and low in operation and maintenance cost, and the product quality and productivity are guaranteed.

The invention provides a high-performance copper-based composite material and a preparation method thereof, and belongs to the field of material preparation. According to the invention, dendritic electrolytic copper powder is used as a matrix, graded SiCp is used as a reinforcing phase, secondary reduced foam iron powder is used as a friction adjusting component, graphite is used as a lubricating component, matrix / component collaborative design of morphology synergy, performance matching, process adaptation and function complementation is adopted, and double-motion mixing, bell jar type pressure sintering and cryogenic circulation grading aging treatment processes are combined, so that the wear-resistant and wear-resistant corrosion-resistant copper alloy material is obtained, and the service life of the wear-resistant and wear-resistant corrosion-resistant corrosion-resistant copper alloy material is prolonged. The technical problems that an existing brake material is high in raw material cost, poor in friction stability, large in brake noise and short in service life are effectively solved. The density of the prepared composite material is larger than or equal to 99.5%, the bending strength is larger than or equal to 430 MPa, the conductivity is larger than or equal to 48.2% IACS, the friction coefficient is stabilized to be 0.33-0.37, the abrasion loss is smaller than or equal to 0.25 cm / MJ, the braking noise is reduced by 15-20 dB, the service life is 30-400 thousand kilometers, and the composite material is suitable for multi-scene braking systems such as high-speed trains, medium-speed trains, subways, heavy machinery and freight trains with the speed being 350 km / h or above.

The utility model belongs to the field of marine science detection equipment, and particularly relates to a releasing device for marine detection equipment. Comprising a swing arm assembly, a telescopic arm assembly and an ocean exploration equipment butt joint assembly, and further comprises a rotary base assembly for supporting the swing arm assembly, and the rotary base assembly comprises a machine base, a hydraulic pump, a bell jar, a motor, a hydraulic motor, a speed reducer, a small gear, a rotary bearing and a rotary machine base. According to the utility model, the rotary base is additionally arranged, so that the omnibearing laying and recovery of the ocean detection equipment are realized, and the flexibility and the application range of the equipment are improved.

The invention provides an underground water organic pollutant sample collection device, and belongs to the technical field of sample sampling. Comprising an air bag pump and further comprises a collecting mechanism, the collecting mechanism comprises an adjusting seat installed at a water outlet of the air bag pump, a plurality of corrugated bottles are installed at the top of the adjusting seat, and an adjusting piece is arranged in the adjusting seat; when water samples at different depths are collected, water is supplied to different corrugated bottles through the adjusting piece. By arranging the adjusting seat, the adjusting piece and the corrugated bottle, when water samples of different depths of the same underground water well are collected, the water samples of different depths are collected in the corrugated bottle through the adjusting piece, a flow channel through which the water samples pass is shorter, and during secondary sampling, pollutants of last sampling are reduced from entering the corrugated bottle for secondary sampling, so that the sampling efficiency is improved. Therefore, the accuracy of detection results is improved.

The utility model provides a bell jar and battery standing control system, which comprises a jar body and a bottom plate, an accommodating space communicated with the outside is formed in the jar body, and the bottom plate is connected with the jar body and is used for sealing the accommodating space; the bottom plate is provided with at least one external pipe opening used for air inlet and / or air outlet, the external pipe opening communicates with the containing space, and the airflow direction of the external pipe opening comprises the direction from the cover body to the bottom plate or the direction from the bottom plate to the cover body. The side, facing the cover body and / or the side, away from the cover body, of the bottom plate is a plane, and the curvature of the plane in any direction is zero. According to the bell jar device, the shape of the bottom of the bell jar device is changed, and the airflow direction of the external pipe orifice of the bell jar body is adjusted to be consistent with the axial direction of the bell jar body, so that the overall production period of the bell jar device is shortened, the production cost is reduced, the overall use strength of the device is improved, the durability of the device is improved, and the user experience is improved.

The invention discloses an over-glaze three-dimensional spraying process and equipment thereof, and relates to the technical field of ceramic tile production and processing equipment, and the over-glaze three-dimensional spraying process comprises a flow control mechanism arranged in the middle of a bell jar; an adjusting mechanism is arranged at the top of the bell jar; a flow equalizing mechanism for equalizing the glaze flow is arranged at the top of the adjusting mechanism. According to the technology and equipment disclosed by the invention, the two baffles are driven by the motor to rotate relatively, so that the diffusion area of the glaze curtain on the bell jar can be freely controlled, unnecessary glaze waste is reduced, meanwhile, the rotating baffles can push the arc-shaped flow control plate to vertically move in the second flow control groove, and by utilizing the structure of the two flow control grooves, the glaze can be uniformly dispersed in the arc-shaped flow control plate. Therefore, the quantity of glaze flowing in the middle of the glaze curtain is controlled, the diffusion area of the glaze curtain and the quantity of the glaze in the middle can be synchronously changed, when the same batch of green bricks with different specifications are glazed, glaze waste can be saved, meanwhile, the glaze thickness is uniform, and the working efficiency of equipment is improved.

1. Name of the product in this design: Desk Lamp (Dual Touch Bell Shade - PAROS). 2. Purpose of this design: for lighting. 3. The key design features of this product are its overall shape. 4. The image or photograph that best illustrates the design's key points: a 3D model.

The utility model relates to the technical field of heat treatment equipment, in particular to a bell-type furnace with a rotatable material bearing table, a heating device and a gas circulation structure are arranged in the bell-type furnace, the bell-type furnace comprises a base and a bell-type furnace body, a furnace opening is formed in the bottom of the bell-type furnace body, and a liftable furnace bed is installed on the base. The hearth can be ensured to abut against the furnace opening in a sealed mode after being lifted, and a material bearing table and a driving assembly for driving the material bearing table to rotate in the bell-type furnace are installed on the hearth in a sealed mode. A through hole with the axis in the plumb direction is formed in the middle of the furnace hearth, and the driving assembly is located in the through hole and comprises a slewing bearing installed on the furnace hearth, a gear installed together with the slewing bearing in a matched mode, a rotating shaft driving the gear to rotate and a driving piece driving the rotating shaft to rotate. According to the bell jar furnace with the rotatable material bearing table, the material bearing table can rotate so that materials can be fully and evenly heated, and the contact efficiency of the protective atmosphere and the materials is improved.

The utility model provides a bell jar furnace which comprises a bell jar and a base and further comprises an upper plug box, a middle plug box and a lower plug box, the upper plug box is arranged at the bottom of an opening of the bell jar, and the lower plug box is arranged on the base. The upper plug box and the middle plug box are respectively provided with at least two groups of corresponding taper pins and taper holes and a plurality of groups of corresponding moving contacts and static contacts, and when the taper pins are inserted into the taper holes, the moving contacts are in contact connection with the static contacts; and a moving mechanism is arranged between the middle plug box and the lower plug box, so that the middle plug box can move front and back, left and right and rotate relative to the lower plug box. According to the bell-type furnace provided by the utility model, when the upper plug box and the lower plug box are connected, the taper pin firstly enters the taper hole to realize automatic alignment, when the upper plug box and the lower plug box are inserted for a certain length, the moving mechanism realizes fine adjustment of the positions of the middle plug box and the lower plug box to realize complete alignment, and the movable contact and the static contact are connected to ensure tight fit and good electric conduction; the device completely solves the problem of deformation caused by thermal expansion and cold contraction, and thermal expansion and cold contraction at any angle can be offset.

The invention relates to the technical field of casting smelting processing, in particular to a method for improving the comprehensive performance of a ZL104 casting, ZL104D baked at 300 DEG C and foundry returns are heated to 720 DEG C through a graphite crucible, the Fe element content is strictly controlled, the crucible, a temperature measuring tube and the like used in the smelting process need to be made of graphite materials, and the cost is low. The bell jar, the stirring spoon, the slag beating spoon, the sampling cup and the like must adopt isolation measures to prevent the Fe element from being increased. The microstructure is changed, the internal stress is more uniform, the surface tension is reduced, the mechanical property is improved, and the green conductive oxidation effect is obviously improved.

The invention relates to the technical field of hexagonal boron nitride production equipment, in particular to a bell jar furnace for producing hexagonal boron nitride, which comprises a shell, a calcining mechanism is mounted in the shell, the calcining mechanism comprises a furnace platform, the furnace platform is fixedly mounted at the bottom of the shell, and a vertical lifting device is arranged at the top of the furnace platform. A bearing table is arranged on the surface of the vertical lifting device, the guide rail is fixedly installed on the top of the bearing table, a feeding frame is slidably installed in the guide rail, and the hearth is fixedly installed in the shell. Through the arrangement of the calcining mechanism, the gas inlet amount of the gas storage tank can be changed, micro-positive pressure inert atmosphere needs to be maintained for a long time during bell-type furnace production, high-pressure gas of the corresponding volume needs to be accurately supplemented, it is ensured that the hearth pressure is always stabilized in a target interval, oxidation type quality defects are fundamentally avoided, inert gas consumption is reduced, and the operation cost is remarkably saved; severe fluctuation of hearth pressure is avoided, and temperature field uniformity and equipment stability are guaranteed.

The invention relates to the technical field of polycrystalline silicon production devices, in particular to a polycrystalline silicon reduction furnace which comprises a fixing support, a first motor is mounted at the lower end of the fixing support, a base is fixedly connected to the inner side of the fixing support, and a furnace body is mounted at the upper end of the base. A crystalline silicon detection mechanism used for detecting the production state is arranged in the furnace body on the inner side of the base, a U-shaped silicon rod used for adjusting the silicon rod is arranged on the inner side of the base, a bell jar is installed at the upper end of the base, and a spiral sliding groove is formed in the inner wall of the bell jar. A silicon rod detection mechanism used for detecting the production state is arranged on the inner side of the bell jar, the U-shaped silicon rod is driven by the rotating assembly to do circular motion, and the 8-shaped track of the detection assembly is matched, so that the high-temperature-resistant fiber grating sensor can cover the core parts of different areas of the silicon rod, comprehensively captures temperature gradient distribution, and improves the production efficiency. And local data deviation of traditional fixed point detection is avoided.

The utility model discloses an exhaust structure of a bell-type furnace, which relates to the field of bell-type furnaces and is technically characterized in that the exhaust structure comprises a support frame, an exhaust pipe is arranged on one side of the support frame, a cooler is arranged at one end of the exhaust pipe, an exhaust connecting pipe is arranged at one end of the cooler, an exhaust valve is arranged at one end of the exhaust connecting pipe, and an exhaust valve is arranged at the other end of the exhaust connecting pipe. A plurality of connecting branch pipes are arranged at the other end of the exhaust pipe, a mounting cylinder is arranged at one end of each connecting branch pipe, a filter seat is detachably connected to one end of each mounting cylinder, a first connecting cavity communicated with the interior of each mounting cylinder is formed in one end of each filter seat, and a high-temperature-resistant filter screen is arranged in each first connecting cavity. A second connecting cavity is formed in the filtering base, and the technical problems that dust can flow into an exhaust pipe along with waste gas, after the exhaust pipe is used for a long time, the dust can be accumulated in the exhaust pipe, the exhaust pipe is blocked, but an existing exhaust pipe cannot be detached, and dust cleaning is difficult are solved.

The utility model discloses a sealed bell housing with a heat dissipation structure, which comprises a bell housing body and a connecting shaft, the connecting shaft is connected with the bell housing body through a connector, a plurality of groups of heat dissipation holes are arranged on one side of the bell housing body close to the connector, a connecting sleeve is arranged in the bell housing body, and the connecting sleeve is connected with the connecting shaft. The connecting sleeve is provided with evenly-distributed containing grooves, the bell housing body is provided with an oil inlet hole, and the connector is provided with a heat dissipation mechanism used for heat dissipation of the bell housing body. According to the bell-shaped shell, the heat dissipation machine is arranged, exchange between air inside the bell-shaped shell body and outside air can be increased through the multiple sets of heat dissipation holes, heat dissipation is conducted on the interior of the bell-shaped shell body, transferred heat is absorbed through the first heat dissipation fins and the second heat dissipation fins, the heat is exposed in the air, and therefore the heat dissipation efficiency of the bell-shaped shell body can be improved; the service life of the bell housing body is effectively prolonged, and the durability of the bell housing is improved.