46 results about "Chamber design" patented technology

This application relates to the field of fermenters, specifically a high-efficiency insulated fermenter. The fermenter comprises a closed fermentation chamber formed by the fitting of tank walls. This closed fermentation chamber has an inlet and an outlet, and multiple temperature sensors are axially arranged within the fermentation chamber. The tank wall adopts a five-layer composite structure, comprising, from the inside out: a material contact layer, a heat storage and temperature control zone, a main insulation layer, a vacuum insulation layer, and an outer protective layer. The heat storage and temperature control zone employs a multi-chamber design and is equipped with an independent temperature control actuator. The vacuum insulation layer and the outer protective layer work synergistically to maximize the suppression of heat conduction. This fermenter, by optimizing the tank wall structure, improves the temperature control accuracy and insulation performance during the fermentation process, ensuring uniform and efficient fermentation of the material within the closed fermentation chamber. The tank wall is composed of a multi-layer composite structure.

The utility model provides a liquid expansion mandrel fixing device for processing a hard chromium plated ball, which belongs to the technical field of hard chromium plated ball processing, and comprises a mandrel main body, and the inner part of the mandrel main body is divided into cavities and is used for realizing uniform expansion; a filling hole is formed in one side of the core shaft main body and is used for filling a hydraulic medium into the core shaft main body; a sealing screw is arranged at an opening of the filling hole; an expansion chamber and a compression chamber are arranged in an inner cavity of the mandrel body, the compression chamber is arranged on one side of a center shaft of the mandrel body, and a linkage structure is arranged in the compression chamber and used for clamping a ball. The utility model provides a liquid expansion mandrel fixing device for processing a hard chromium plated ball, which can solve the problems that the clamping force is concentrated on a local area and a plating layer is easy to crush due to the single-cavity design of the existing liquid expansion mandrel.

The multifunctional treatment device comprises a cleaning machine shell, the cleaning machine shell is a cavity shell of a rectangular structure, a water feeding opening is formed in one side of the cleaning machine shell, a master pump machine is assembled in the water feeding opening, the exterior of the water feeding opening is connected with a water supply pipe, and the water supply pipe is connected with a water pump. The cleaning machine shell is provided with a first cleaning chamber and a second cleaning chamber. The multifunctional treatment device relates to the technical field of traditional Chinese medicine treatment, adopts the design of double cleaning chambers, performs different cleaning operations according to different task types, adopts the same master control to control the double cleaning chambers, and is more compact in structure and more convenient to use. And an ultrasonic auxiliary cleaning effect and a cleaning water stirring effect are correspondingly set, so that the cleaning is more convenient, the cleaning water stirrer can be controlled to work according to task requirements, and more energy conservation and environmental protection are achieved.

The invention relates to the technical field of coating processing, and discloses a gas supply device for supplying special gas to a coating cabin, the device mainly comprises a main special gas holder, a standby special gas holder, a pre-filled buffer tank and a gas flow dispersion component, the main special gas holder and the standby special gas holder are connected with the pre-filled buffer tank through a pneumatic three-way valve to form a double-gas-source gas supply system; when the pressure of the main special gas holder is insufficient, the pneumatic three-way valve is automatically switched to the standby special gas holder, the pre-filled buffer tank preferentially releases stored high-pressure gas in the process, gas is continuously supplied to the coating cabin through the gas supply main pipe, and the problem of gas pressure fluctuation caused by valve switching in the traditional design is completely avoided. The pre-filled buffer tank adopts a coaxial double-chamber design and comprises a high-pressure chamber on the outer layer and a pressure stabilizing chamber on the inner layer, the high-pressure chamber is connected with a pneumatic three-way valve, the pressure stabilizing chamber is communicated with the coating cabin through a gas supply main pipe, an annular metal isolation plate is arranged in the pressure stabilizing chamber, and automatic balance of gas pressure is realized through an automatic adjusting mechanism.

This utility model discloses a precision fertilizer application device for agriculture, which includes a main frame, a hopper, and at least one fertilizer application mechanism. The main frame has a traction rod at its front end for connecting to a tractor, wheels in the middle, and a hopper fixed to the top by a support rod; the bottom of the hopper is connected to a discharge pipe. The fertilizer application mechanism includes a base plate, a discharge assembly, a wheel, a shaft, a vertical plate, and a motor. The discharge assembly consists of two interlocking circular shells forming a cavity with an inlet and an outlet; the wheel is coaxially positioned within the cavity, with radial partitions equidistantly spaced along its arc-shaped outer edge, forming independent chambers separated from the inner wall of the shells. This independent chamber design forcibly separates the fertilizer, eliminating pulsed fertilizer application and significantly reducing the fluctuation rate of the unit fertilizer application rate; the motor speed corresponds linearly to the fertilizer application frequency, adapting to real-time tractor speed changes to ensure precise "one fertilizer per hole" positioning; the interlocking shells are quickly disassembled and reassembled with bolts, facilitating the cleaning of compacted fertilizer and reducing the risk of bearing corrosion failure.

The utility model relates to food processing machinery technical field discloses a snowflake chicken fillet forming die, including frame, the top of frame is slidably installed with telescopic processing platform, the top of frame is fixed with mounting bracket, the inside installation of mounting bracket has extrusion pneumatic cylinder, the other end of extrusion pneumatic cylinder is connected with the lower press frame that penetrates mounting bracket, the top of extrusion pneumatic cylinder is fixed with top plate, the inside of mounting bracket both sides is all fixed with support rod. This snowflake chicken fillet forming die, through first placing lower mould on telescopic processing platform, moving telescopic processing platform to lower mould below, through extrusion pneumatic cylinder to push lower press frame to press down, and push upper mould to extrude lower mould, utilize the snowflake chicken fillet shape of upper mould inner chamber design, ensure that the raw material in lower mould keeps size shape uniformity, improve the appearance quality and standardization degree of product, improve production efficiency, reduce artificial cost, be suitable for large -scale industrialized production.

The invention relates to the technical field of labeling inspection devices, and discloses a labeling inspection device for packaging spleen aminopeptide freeze-dried powder finished products. Comprising a packaging bottle conveying belt, a detection assembly, a receiving and feeding assembly, a material distributing cavity, a telescopic material blocking plate, a material guiding plate, a material stirring block, a qualified product conveying belt, a width adjusting assembly, an arc-shaped material guiding channel, an elastic buffering cover, a finished product conveying belt and a packaging bottle limiting base, and the detection assembly is installed on a conveying path of the packaging bottle conveying belt; the receiving and feeding assembly is arranged at the discharging end of the packaging bottle conveying belt. By integrating various detection means such as an industrial camera, a bar code scanner and a color sensor, all-directional detection of packaging bottle labeling is achieved, and it is ensured that the labeling quality meets the standard. And meanwhile, qualified products and defective products are automatically separated, the sorting efficiency is greatly improved, and manual intervention is reduced. A double-layer material distribution cavity design is adopted, and products of different qualities are collected through a finished product material passing layer and a defective product storage layer respectively.

The invention relates to the technical field of stress simulation, and discloses a movable fire resistance test furnace with a stress simulation device, which comprises a test furnace, a first test tank and a second test tank, a tension test rod and a torsion test rod are symmetrically arranged in each of the first test groove and the second test groove, a driving assembly and a clamping assembly are arranged in the test furnace, and the driving assembly comprises eight positioning blocks; through the design of the double independent test grooves, different temperatures or the same tensile force can be synchronously applied, a contrast test can be carried out on two samples, and contrast data of fire resistance and stress performance can be rapidly obtained. Self-adaptive adjustment is achieved through cooperation of the helical tooth transmission rod and the arc-shaped helical rack set, even if one side of the special-shaped sample is clamped firstly, the clamping plate on the other side can still be driven to continuously move till the special-shaped sample is stably fixed, the clamping universality and stability are greatly improved, and it is guaranteed that the special-shaped sample is stressed in a balanced mode in the testing process.

The invention belongs to the technical field of power system stability analysis, and particularly discloses a pumped storage power station stability analysis and surge chamber design optimization method, which comprises the following steps of: constructing a plurality of nonlinear mathematical models of different surge chamber arrangement forms; determining the stability domain of the nonlinear mathematical model in the speed regulator parameter space based on the bifurcation theory and the time-varying six coefficients; comparing the size and range of the stability domain of the nonlinear mathematical model in the arrangement form of the upstream series double surge chambers and the upstream and downstream double surge chambers to obtain a comparison result; preliminarily screening an arrangement form providing a maximum stability domain as a candidate scheme based on a comparison result; and carrying out dynamic response process analysis on the candidate scheme, determining a target arrangement form with a maximum stability domain and optimized dynamic response characteristics, and obtaining a final optimized design scheme. By means of the method, potential safety risks and later high transformation cost can be avoided, and the operation stability of the pumped storage unit under the complex working condition is improved.

The utility model discloses a steam turbine high pressure cylinder rear shaft seal body and contain the shaft seal body's axle end seal structure, wherein, steam turbine high pressure cylinder rear shaft seal body includes the shaft seal main part, the annular seal key of section is L type, steam turbine high pressure cylinder rear axle end seal structure includes end take steam seal body, and rear shaft seal body, and the inner wall of end take steam seal body, and every circle steam seal block installation groove all have inserted steam seal block, form SSR chamber between second compartment and steam cylinder body, and form CF chamber between end take steam seal body, shaft seal main part, rotor axle and steam cylinder body. Advantage: the utility model sets up two independent chambers of SSR chamber and CF chamber, effectively reduces the pressure that end take steam seal body suffered, and steam leakage amount is reduced greatly, breaks through the steam leakage bottleneck of traditional single chamber design, and L type seal's metal face contact is matched with steam cylinder body seal groove, can adapt to steam cylinder body thermal deformation, maintains the stability of sealed clearance, avoids the clearance increase due to deformation.

The utility model belongs to the technical field of aging instrument equipment, and particularly relates to a thermal desorption tube aging instrument which comprises an aging oven, a heating module and a gas path system, the aging oven is of a split type and comprises a lower fixing box and an upper mounting cover. The upper mounting cover comprises a mounting plate, an arc-shaped groove and at least two hook parts; the arc-shaped groove is formed in the lower surface of the mounting plate and is used for embedding the adsorption pipe; the hook parts are distributed on the peripheral side of a notch of the arc-shaped groove and are used for jointly supporting the same adsorption pipe; the lower fixing box comprises a fixing plate and a groove formed in the upper surface of the fixing plate. According to the utility model, through the design of the split type aging oven, one lower fixing box corresponds to a plurality of upper mounting covers during actual aging operation, so that the purpose of quickly mounting / removing the adsorption tubes of the same upper mounting cover can be achieved no matter before cleaning or after cleaning, the preparation time before cleaning and after cleaning is greatly shortened, and the production efficiency is improved. The operation process is simplified, and meanwhile the working efficiency is improved.

This application relates to the field of soft oxygen chamber design, and provides a composite cabin fabric structure for the transparent window of a soft oxygen chamber. The structure includes two transparent outer layers and a mesh interlayer sandwiched between the two transparent outer layers. The mesh interlayer has multiple mesh openings, the width of which gradually increases from one side of the mesh interlayer to the other. In the assembled state, the narrowest opening of the mesh opening is located on the side of the soft oxygen chamber closest to the outside. Based on this, user privacy can be protected during the use of the soft oxygen chamber, making it valuable for promotion and application.

The utility model relates to the technical field of purification devices, and discloses a calcium carbide furnace tail gas mixing type purification device which comprises a purification chamber, a partition plate is fixedly connected to the inner wall of the purification chamber, a filtering assembly is arranged at the top end of the inner wall of the purification chamber, and a connecting pipe is fixedly connected to the bottom end of the partition plate. An air inlet pipe is fixedly connected to the outer wall of the connecting pipe, bent pipes are fixedly connected to the two ends of the connecting pipe, piston rods are arranged at the bottom ends of the bent pipes, plugs are fixedly connected to the top ends of the piston rods and used for plugging the bent pipes, and linkage assemblies are arranged at the bottom ends of the piston rods and used for connecting the bent pipes with the connecting pipe. The outer wall of one piston rod is connected with the bent pipe through a lifting assembly. According to the utility model, the purification device adopts a multi-chamber design, and when the solution and the activated carbon layer are replaced, the plug is matched with the piston rod to realize non-stop operation, so that the purification continuity is guaranteed, the efficiency is improved, and the pollution is reduced. Meanwhile, part abrasion is relieved through segmented relay purification, the service life of the device is prolonged, and the maintenance cost is reduced.

The invention belongs to the technical field of zero carbon / negative carbon park negative carbon, and discloses direct air carbon capture equipment, a process flow and a control method, the equipment comprises a low energy consumption adsorption unit, a heat and vacuum coupling desorption enrichment unit, a gas storage unit, an automatic control unit and an energy comprehensive supply unit. The invention aims to provide a device for preparing high-purity CO2 by direct air carbon capture based on an alkali metal-based adsorption material. The technical core is to design two closed desorption enrichment units: an improved concave-convex tabletting shutter valve and high-pressure low-temperature steam form mechanical and gas dual isolation; the concentrated tunnel type desorption chamber designed for the adsorption material module is provided with high-pressure and low-temperature steam blowing, a turbulent flow fan and a single outlet / inlet sealing door. According to the direct air carbon capture device and process, the technical problems that CO2 is difficult to enrich, low in purity, high in cost and energy consumption, limited in scale and the like are effectively solved.

The invention discloses a downward moving type conical diaphragm jigger, which relates to the technical field of preparation equipment and comprises a rack, a first-stage jigging chamber box body, a second-stage jigging chamber box body, two excitation system screens, two tailing channels, two vertically adjustable gate mechanisms, a screening channel excitation system, two drum membranes, a seesaw frame, an eccentric connecting rod mechanism and a motor. According to the downward moving type conical diaphragm jigger, through the overall compact structure matching design, the occupied area is small, efficient mineral separation is achieved, through the unique seesaw linkage structure and the serial jigging chamber design, operation is stable and reliable, maintenance is convenient, long-term fault-free operation can be achieved, and through the combination of the two-stage jigging function and the screening function, the working efficiency is improved. Minerals with a wide particle size range can be effectively treated, the separation precision is high, and the recovery effect is good.

The efficient extraction and separation integrated system comprises a main shell, a liquid supply chamber and a plurality of partition plates, a cracking chamber is formed between every two adjacent partition plates, a cracking tank and a combination tank are installed in each cracking chamber from top to bottom, the cracking tanks are communicated with the combination tanks, and the combination tanks are communicated with the main shell. A conical discharging bin of an integrated structure is arranged at the bottom of the combining pipe, a sunken part which is sunken upwards is arranged at the bottom of the conical discharging bin, and the magnetic device is arranged outside the sunken part. Cross contamination between samples and environmental pollution can be avoided, efficient capture, thorough washing and sufficient elution of magnetic beads are ensured by combining the unique conical cavity design and the movable magnetic device, so that target products with higher purity and more stable yield are obtained, operation is easy and convenient, reliability is high, a user only needs to add the samples and consumables, and the cost is low. The technical requirements for operators are reduced, and the system structure is simpler and higher in reliability compared with a large robot workstation.

An oil supply structure arranged on a portable bag sealing machine comprises a machine head, a handle is arranged above the machine head, an oil storage cavity and an installation chamber are arranged in the handle, and an oil pump is arranged in the installation chamber. The handle is detachably provided with a handle upper cover used for opening and closing the oil storage cavity to be communicated with the outside and a handle side cover used for opening and closing the installation chamber to be communicated with the outside, the two ends of the oil pump are communicated with the oil storage cavity and the machine head through hoses respectively, and starting and stopping are controlled through the control module. The oil pump handle is compact and reasonable in structural design, integrates multiple functions of an original handle, has the oil storage function through the design of the internal oil storage cavity, facilitates communication between the oil pump and the oil storage cavity by arranging the oil pump in the installation chamber of the handle, guarantees efficient storage and conveying of lubricating oil, and improves the service life of the oil pump. And the installation space is further saved.

The application relates to the technical field of coating processing, and discloses a gas supply device for supplying special gas to a coating cabin, which mainly comprises a main special gas tank, a standby special gas tank, a pre-charging buffer tank and a gas flow dispersion assembly; the main special gas tank and the standby special gas tank are connected with the pre-charging buffer tank through a pneumatic three-way valve, forming a double-gas-source gas supply system; when the pressure of the main special gas tank is insufficient, the pneumatic three-way valve is automatically switched to the standby special gas tank; in this process, the pre-charging buffer tank preferentially releases the stored high-pressure gas, and the coating cabin is continuously supplied with the gas through a gas supply main pipe, so that the problem of gas pressure fluctuation caused by valve switching in the traditional design is completely avoided. The pre-charging buffer tank adopts a coaxial double-chamber design, including a high-pressure chamber in the outer layer and a pressure stabilizing chamber in the inner layer; the high-pressure chamber is connected with the pneumatic three-way valve; the pressure stabilizing chamber is connected with the coating cabin through the gas supply main pipe; and the pressure stabilizing chamber is provided with an annular metal isolation plate, and the gas pressure is automatically balanced through an automatic adjusting mechanism.

The invention belongs to the technical field of converter steelmaking, and particularly relates to a device and method for reducing steel ladle roughing slag through a double-chamber series-connection restraining cover. Resistance columns are arranged in the circumferential direction of a refractory cover body, and a steel slag chamber, a built-in exhaust pipe and a molten steel chamber are sequentially arranged in the refractory cover body from top to bottom; the steel slag chamber and the molten steel chamber are connected through the built-in exhaust pipe, an opening of the molten steel chamber is arranged downwards, the external exhaust pipe is detachably arranged on the refractory cover body and communicated with the steel slag chamber, meanwhile, a gate valve is arranged on the external exhaust pipe, and a molten steel inlet communicated with the molten steel chamber is formed in the side wall of the refractory cover. The structure effectively inhibits formation of eddy current in a nozzle area in the later pouring period of the steel ladle, the double-chamber design of the molten steel chamber and the steel slag chamber effectively prevents slag entrapment and slag discharge when molten steel enters the nozzle, the phenomenon of slag entrapment and slag discharge in the later pouring period is eliminated, the influence on the quality of the molten steel in the later pouring period is reduced, the steel ladle pouring residue is remarkably reduced, and the service life of the steel ladle is prolonged. And the metal yield and the production efficiency are improved.

A high-pressure airless spraying machine with a material leakage protection function comprises a machine shell, a speed reducing motor and a plunger pump, the speed reducing motor and the plunger pump are installed on the machine shell, a positioning seat is arranged in the machine shell and arranged in the direction from the speed reducing motor to the plunger pump, a rotatable large gear is arranged on the positioning seat, a connecting rod is arranged above the large gear, and the connecting rod is connected with the positioning seat. The rear end of a plunger rod of the plunger pump is in transmission connection with a shaft end gear of the gear motor through the connecting rod and the large gear, an anti-splashing baffle is further arranged at the position, close to the connecting rod, of the plunger rod, and a first material cavity is formed in the end, close to the plunger pump, of the positioning base. A first through hole is formed in the bottom of the first material cavity and penetrates through the machine shell. And the design of the anti-splashing baffle is adopted, when leaked paint splashes, the anti-splashing baffle plays a blocking role, the design of the material cavity is adopted, the leaked paint can be discharged from the through hole of the material cavity in time, and the gear motor is prevented from being burnt down.

The invention discloses a staged combustion chamber design method and device, a storage medium and electronic equipment. The method comprises the steps that a one-dimensional model of an axial staged combustion chamber is built, disturbance parameters are set according to the one-dimensional model, the disturbance parameters comprise pressure waves and entropy waves, and system attribute parameters are preset; respectively constructing a pressure pulsation model, a density pulsation model and a speed pulsation model according to the disturbance parameters and the system attribute parameters; constructing a disturbance matrix and a disturbance column vector according to all the pressure pulsation models, the density pulsation models and the speed pulsation models; system simulation parameters are calculated according to the disturbance matrix and the disturbance column vector, the system simulation parameters comprise the oscillation angular frequency, the oscillation growth rate and the vibration mode space distribution, the one-dimensional model and the system attribute parameters are adjusted according to the system simulation parameters, and the corrected system attribute parameters serve as combustion chamber design parameters.

This utility model provides an explosion-proof power control device, relating to the field of explosion-proof industrial vehicle technology. It includes a sealed explosion-proof power control enclosure, divided into two chambers: Chamber 1 and Chamber 2. Chamber 1 houses a lithium battery pack and a lithium battery fuse electrically connected to the pack. Chamber 2 houses a BMS management system, a lithium battery control contactor group, and a vehicle control system, all electrically connected in sequence. The lithium battery pack is electrically connected to the lithium battery control contactor group. Compared to traditional separate structures, the integrated chamber design of this explosion-proof power control enclosure reduces safety hazards caused by component connections, enabling power supply and control of the entire vehicle in explosive gas-powder composite environments. The simple structural design eliminates the need for complex assembly processes, reducing manufacturing costs. It is suitable for IIB or IIIC level gas-powder composite explosion-proof environments, expanding its application range and demonstrating strong versatility.

This utility model relates to the field of vapor chamber design technology, specifically to a VC vapor chamber. It includes: a middle plate with a receiving groove; a cover plate fixed within the receiving groove, forming a vacuum cavity with the bottom of the receiving groove; a support structure disposed between the cover plate and the bottom of the receiving groove, with gaps between adjacent support structures; and a capillary structure arranged on the side of the cover plate facing the vacuum cavity; the vacuum cavity is filled with a cooling medium. In this application, the vacuum cavity, support structure, and capillary structure constitute the physical basis of the VC vapor chamber. Integrating the traditional middle plate into the VC vapor chamber eliminates the thickness accumulation caused by a separate middle plate, thus reducing the overall thickness of the device.

This utility model discloses a front shaft seal body for a steam turbine intermediate-pressure cylinder and a shaft end sealing structure including the shaft seal body. The front shaft seal body for the steam turbine intermediate-pressure cylinder includes a shaft seal body and an L-shaped annular sealing key. The front end of the shaft seal body has an integrally formed forward-bent section. The front shaft end sealing structure for the steam turbine intermediate-pressure cylinder includes an end-hand steam seal body and a front shaft seal body. Steam seal blocks are embedded in the inner ring of the end-hand steam seal body and in the steam seal block mounting groove of each ring. An SSR chamber is formed between the bent section, the shaft seal body, and the rotor shaft, and a CF chamber is formed between the end-hand steam seal body, the bent section, the rotor shaft, and the cylinder body. Advantages: Compared with the original single SSR chamber, this utility model sets two independent chambers, the SSR chamber and the CF chamber, which effectively reduces the pressure on the end-hand steam seal body, significantly reduces steam leakage, and breaks through the leakage bottleneck of the traditional single-chamber design.

The utility model provides a kind of air-cooled battery cabinet, including cabinet and air cooler, air cooler has in the inside of cabinet, and for the upper and lower setting air inlet chamber and air outlet chamber, air inlet chamber has multiple air inlets in its side upper, air inlet is equipped with sealing ring, air outlet chamber has air outlet in its bottom, air outlet is correspondingly set with the battery pack of the lowermost in cabinet;Multiple air guide chamber, correspondingly located the top of each row battery pack, and have air inlet oppositely arranged air outlet.The temperature consistency of each battery pack is guaranteed by setting multiple rows of battery pack and two side flow channels, combining the upper and lower air inlet and outlet chamber design of air cooler, cold air is shunted to each layer battery by air guide chamber and flow channel, form orderly airflow path, avoid short circuit circulation, avoid local overheating;In addition, air inlet is equipped with sealing ring, front door is closed and closely adheres to air outlet, prevent cold air leakage, ensure that airflow is all used for battery cooling, reduce air cooler energy consumption, improve energy efficiency.

This invention relates to an end effector for collecting poultry eggs in floor-raised breeding farms and its operating method. The end effector includes a support frame, a drive motor, and a first movable support, a fixed support, and a second movable support arranged sequentially along the circumference. Soft fingers are installed on the first movable support, the fixed support, and the second movable support. A driving bevel gear is fixedly mounted on the output shaft of the drive motor. The driving bevel gear meshes with an upper driven bevel gear and a lower driven bevel gear. The upper driven bevel gear is fixed relative to the first movable support, and the lower driven bevel gear is fixed relative to the second movable support. The fixed support is fixed relative to the support frame. This invention utilizes a coaxial reversing bevel gear system to achieve switching between "grabbing" and "turning" functions, solving the problem of collecting buried eggs in floor-raised environments. It has strong environmental adaptability and low noise, employing a tendon rope drive combined with a base chamber design, keeping the power source away from the harsh bedding environment and avoiding mechanical jamming.

The invention discloses a double-oil-pump power assembly and a double-pump communication control method. The double-oil-pump power assembly comprises a double-oil-cooling-motor assembly, a speed reducer, a double-electronic-oil-pump assembly and a communication oil way. The double-oil-cooling motor assembly comprises a first oil-cooling motor and a second oil-cooling motor which are coaxially arranged in parallel and are respectively connected with two ends of an input shaft of the speed reducer; the speed reducer and the double-oil-cooling motor assembly adopt a common oil cavity design; the double-electronic oil pump assembly comprises a first electronic oil pump and a second electronic oil pump which are independently arranged and provide cooling lubricating oil ways for a first oil cooling motor and a second oil cooling motor respectively. The communicating oil way is used for communicating the two cooling lubricating oil ways, and pressure balance under the normal working condition of the double pumps and flow compensation under the abnormal working condition of the double pumps are achieved. The motor and speed reducer common oil cavity design not only can simplify the design of two motor and speed reducer oil ways and oil cooling systems and reduce the design of speed reducer oil cooling systems, but also can reduce the oil stirring loss of the speed reducer and improve the system efficiency.

The utility model provides a multi-stage rotational flow micro gas turbine combustor, and relates to the field of gas turbines. The multi-stage rotational flow micro gas turbine combustor comprises a combustion chamber and a nozzle installed in the combustion chamber, the combustion chamber comprises a first-stage combustion chamber, a second-stage combustion chamber and a third-stage combustion chamber, and a primary air inlet, a secondary air inlet and a third-stage air inlet are formed in the combustion chamber and used for conveying air into the combustion chamber. Notches are formed in the first-stage combustion chamber and the second-stage combustion chamber; according to the multi-stage rotational flow micro gas turbine combustor, the three-stage combustion chamber design is adopted, the length is decreased in sequence, combustion requirements of different stages can be met, the combustion efficiency is improved, by arranging the spiral scrapers in the combustion chambers, the residence time of fuel and air is prolonged, sufficient combustion is promoted, and the incomplete combustion probability is reduced; and the scraping plate rotates, so that residues on the inner wall of the combustion chamber can be scraped, and the smoke exhaust rate can be increased.

The invention relates to the technical field of lime kilns, and particularly discloses a vacuum annular structure lime kiln which comprises a feeding section, a preheating section, a combustion section and a cooling section, the preheating section, the combustion section and the cooling section are sequentially connected below the feeding section in a sealed mode, the preheating section, the combustion section and the cooling section are annular, and a first heat transfer wall and a second heat transfer wall which are concentrically arranged are arranged in the preheating section, the combustion section and the cooling section; a material channel is formed between the heat transfer wall I and the heat transfer wall II; according to the lime kiln with the vacuum annular structure, through the independent cavity design of the annular material channel, the combustion chamber and the smoke chamber, the whole-process indirect treatment of heating, preheating and cooling of limestone is achieved, the limestone is physically isolated from media such as fuel combustion smoke, combustion air and cooling air all the time, and carbon dioxide generated through decomposition only flows in the closed material channel; mixing dilution is avoided from the source, high-purity carbon dioxide can be obtained without complex separation and purification equipment, the recycling cost is reduced, and meanwhile the resource utilization efficiency is improved.

The utility model relates to the technical field of air spring positioning rings, and discloses an air spring positioning ring which is low in cost, light in weight and easy to install and comprises a positioning ring shell, a connecting ring is integrally formed on the upper side of the positioning ring shell, and a second sealing plane is integrally formed at the lower end of the positioning ring shell. A positioning boss is fixedly arranged at the lower end of the second sealing plane, a plurality of second hollow cavities are formed in the inner side of the positioning ring shell, the inner side of the connecting ring and the inner side of the second sealing plane, and the second hollow cavities are distributed on the inner side of the positioning ring shell at equal intervals according to the circumference. According to the utility model, the wall thickness of the shell is uniformly thinned by the structure, and the integrated injection molding process of plastic materials is matched, so that the injection molding cooling time is effectively shortened, the production efficiency is obviously improved, and the energy consumption is reduced. The design of the second hollow cavity with the right trapezoid section further optimizes stress distribution, the sink mark defect caused by sudden change of the wall thickness is avoided, and light weight and forming quality are both considered.