93results about How to "Reduce size requirements" patented technology

The invention provides an integrated manufacturing tool and method for a large heat dissipation structure, and belongs to the field of laser machining and manufacturing. According to the size of selective laser melting forming equipment, on the premise that the integrity of the special structure of the part is guaranteed, an area with the low laser welding difficulty is selected for cutting, segmented selective laser melting forming manufacturing is conducted, then laser welding is conducted, and multi-laser-process composite manufacturing of the large-size part is achieved. In the selective laser melting forming process, allowance reserving and arc starting and stopping plate design are conducted on a welding area, allowance is removed after welding, and the consistency of the welding seam quality is guaranteed; in the welding process, the welding gun posture and welding parameters are optimized, pollution of splashing to a gun head is improved, and the stability of a welding pool is improved; a part is subjected to heat treatment after selective laser melting forming and laser welding, a special tool is adopted, welding thermal stress is eliminated, and deformation of the part in the heat treatment process is reduced.

The high-temperature-rise combustion chamber comprises a sudden expansion diffuser, a cartridge receiver, a combined air atomizing nozzle and a flame tube and can solve the problems that in the prior art, a high-temperature-rise combustion chamber of a small and medium-sized turbojet engine is low in fuel oil supply pressure and fuel oil flow is increased, so that fuel oil atomization is poor, the combustion efficiency is low, and the combustion efficiency is low. And the service life of the flame tube is difficult to meet the requirement due to great reduction of the cooling air quantity and increase of the cooling air temperature. An overall layout form of fuel oil radial grading and axial grading is innovatively adopted, and swirlers used for assisting fuel oil atomization all adopt a beveling hole mode; space compound angles are innovatively adopted for cooling holes in the flame tube, and the overall layout form of different sizes and different hole pitches is adopted in different areas. Fuel oil atomization quality and efficient combustion under various working conditions can be improved, the service life of the flame tube is prolonged, and meanwhile the machining process of the swirler is simplified due to the fact that the swirler adopts an inclined hole mode.

The invention relates to a ship flue gas desulfurization and decarburization system based on ultrasonic enhancement and an adjusting method.The ship flue gas desulfurization and decarburization system based on ultrasonic enhancement comprises a desulfurization mechanism, a decarburization mechanism and an analysis mechanism, and the flue gas output end of the desulfurization mechanism is connected with the flue gas input end of the decarburization mechanism; a lean amine input end of the decarburization mechanism is connected with a lean amine output end of the analysis mechanism, a rich amine input end of the analysis mechanism is connected with a rich amine output end of the decarburization mechanism, and ultrasonic enhanced mass transfer components are arranged in respective reaction areas of the desulfurization mechanism, the decarburization mechanism and the analysis mechanism. Therefore, the dispersion effect of corresponding reaction materials in the reaction area is accelerated, and the mass transfer efficiency of the corresponding reaction materials is further improved. Ultrasonic waves can improve the analysis rate of the rich amine solution and reduce the requirement for the equipment size.

The invention belongs to the technical field of cable insulation evaluation, and provides an on-service cable insulation evaluation method and system fused with multivariate target optimization in order to solve the problem that it is difficult to comprehensively and accurately evaluate the cable insulation state in the prior art. The active service cable insulation evaluation method fused with multivariate target optimization comprises the following steps: determining a time domain incident signal and a frequency domain incident signal; variational mode decomposition is carried out on the measured time domain reflection signal to obtain a time domain actual reflection signal; designing a cable propagation filter by using an initial propagation constant, and estimating a time domain reflection signal by combining a frequency domain incident signal; determining a target function according to energy and position differences between the estimated time domain reflection signal and the actual time domain reflection signal, and optimizing a propagation constant in a set range to minimize a target function value under each frequency; and calculating a dielectric loss factor according to the optimized relationship between the propagation constant and the dielectric constant, and evaluating the cable insulativity.

The present invention relates to the field of environmental monitoring technology, and specifically discloses an atmospheric pollen online detection system, including a sampler, a transferor and an analyzer, wherein the sampler is used to collect pollen, the transferor is used to transfer the sampling carrier on the sampler to the analyzer, the analyzer is used to analyze the pollen conditions on the sampling carrier, the sampler includes an isolation cover and a sampling carrier placement table installed in the isolation cover, the isolation cover includes an upper part and a lower part, and also includes a push block that drives the upper part or the lower part to move, the push block is used to engage or separate the upper part with the lower part after moving, and an elastic member is connected between the push block and the isolation cover; and also includes a storage mechanism for storing the sampling carrier, the storage mechanism includes a storage plate, and the storage plate is provided with a plurality of glass slide storage positions. This scheme is used to solve the collision problem or the problem of poor sealing effect caused by the difficulty in adjusting the moving path of the isolation cover when it is closed in the prior art.

The invention relates to the technical field of embroidery equipment, in particular to a mixed embroidery device and an embroidery machine, the mixed embroidery device comprises a crossbeam, and the crossbeam is connected with a plain embroidery machine head and a taping embroidery machine head; the plain embroidery machine head comprises a plain embroidery machine shell and a plain embroidery needle bar frame moving on the plain embroidery machine shell; the taping embroidery machine head comprises a taping embroidery machine shell, a needle rod assembly, a presser foot assembly and a material disc assembly. The presser foot assembly comprises a presser foot tube and a presser foot rotation driving mechanism for driving the presser foot tube to rotate; the charging tray assembly comprises a charging tray pipe and a charging tray driving mechanism for driving the charging tray pipe to rotate, and the charging tray driving mechanism comprises a charging tray driving motor; the mixed embroidery device further comprises a main shaft; and a charging tray driving output shaft of the charging tray driving motor is arranged between the main shaft and the girder. According to the hybrid embroidery device, the head distance between the machine heads can be smaller, so that more machine heads can be installed in a limited space.

The invention relates to the technical field of electronic products, and discloses a mounting assembly for a middle frame and electronic equipment. The mounting assembly for the middle frame comprises a mounting piece and an elastic piece, one part of the mounting piece is accommodated in the accommodating groove of the middle frame and is used for mounting a key of the middle frame; and when the mounting piece is accommodated in the accommodating groove, at least one part of the elastic piece is elastically extruded between the mounting piece and the groove side wall of the accommodating groove. According to the mounting assembly provided by the invention, the key can be firmly mounted in the middle frame without shaking, meanwhile, the processing requirement on the size of the middle frame is low, and the mounting assembly is convenient to disassemble and assemble.

The invention provides a preparation method of multi-size patterned white bamboos, which comprises the following steps: selecting mature bamboos with intact appearance, cutting the bamboos into required sizes, and polishing off a wax coat on the surface and a thin film in the bamboos; then carrying out drying treatment at the temperature of 80 to 110 DEG C, wherein the drying time is 24 to 72 hours; putting the bamboo wood into an alkaline solution, soaking for 10-20 minutes at normal temperature, taking out and airing, and coating the surface of the bamboo wood with a bleaching solution; the bamboo wood is placed under a light source for illumination, and photocatalytic oxidation is conducted till the whole color or the local color of the bamboo wood becomes white; and then the bamboo wood is placed in an organic solvent, after ultrasonic cleaning is conducted for 5-10 min, natural drying is conducted, and the white bamboo wood is obtained. The preparation method of the multi-size patterned white bamboo wood is simple in process and not limited by the size of raw materials, the overall white bamboo wood can be prepared, the local patterned white bamboo wood can also be prepared, the structural integrity of the bamboo wood can be kept while high whiteness (larger than or equal to 90%) is achieved, and the prepared white bamboo wood is high in mechanical strength.

The application discloses a device and method for bending and deforming micro-nano samples in-situ in an electron microscope, and belongs to the field of scanning / transmission electron microscope accessories and micro-nano material mechanical property measurement research. The device comprises four parts, namely a supporting part, a driving part, a bending loading part and a sample stage part. One end of the nano material is fixed to a suspended part at the front end of the sample stage, and the other end is a free end. The free end of the nano material is pushed by the bending loading part driven by the heating and bending bimetallic strip, so that the nano material achieves the bending and deformation effect. The application separates and fixes the bimetallic strip and the sample, solves the problems of poor mechanical stability and easy movement of the sample in the deformation process of the in-situ bending nano material, improves the stability of the fixed sample and in-situ imaging, realizes the bending and deformation of the sample, and simultaneously observes the structural evolution of the material in the deformation process. While realizing the bending and deformation of single / multiple nano wire shafts, the structural evolution of the material in the deformation process is observed in-situ.

The invention relates to the technical field of vehicle electric doors, in particular to an automobile side door double-lead-screw driving mechanism and a vehicle. According to the automobile side opening door driving mechanism, the double-screw-rod driving design is adopted, the output gears in the gear box are radially arranged along the axial circumference of the input gear, the screw rods are synchronously driven to do spiral motion, compared with a single-screw-rod driving scheme, the two screw rod nuts are fixedly connected or are an integrated part, the guidance quality of the screw rod nuts is better, and the service life of the screw rod nuts is prolonged. The working stability and smoothness of the driving mechanism can be greatly improved, and the size and manufacturing precision requirements of the lead screw mechanism can be reduced; the driving force of the motor is converted to the double-end gears to be output after passing through the input gears in the gear box, the gear box can provide the reduction ratio and can achieve same-direction and same-speed output of the two output end gears, then synchronous driving of the double-lead-screw mechanism is achieved, the driving force of the system can be greatly improved, and the user experience is improved.

The embodiment of the invention discloses a data sending node, a data sending method, a network-on-chip, a chip and electronic equipment, relates to the technical field of computers, and can greatly reduce the mutual influence of data transmission performance between different data streams while effectively reducing the data cache space of a data receiving end. The node is arranged in a network on chip, and comprises a first monitoring module configured to monitor a data sending condition of a data sending node to target type data and a token release condition of a data receiving node to the target type data, and the target type data comprises one of write data and read response data; the determination module is coupled with the first monitoring module and is configured to determine whether the data receiving node has data congestion according to the data sending condition and the token release condition; and the pause module is coupled with the determination module and is configured to pause to send the target type data to the data receiving node under the condition that the determination module determines that the data receiving node has the data congestion.

According to the technical scheme, the dry-type transformer capable of preventing breakdown is characterized in that the dry-type transformer comprises a plurality of windings arranged side by side and two iron yoke assemblies located at the upper ends and the lower ends of the windings respectively, and the windings comprise low-voltage windings and high-voltage windings which are coaxially arranged and distributed inside and outside; an inter-phase insulating partition plate is arranged between every two adjacent windings, a high-low voltage partition plate is arranged between the low-voltage winding and the high-voltage winding, and the problems that in the prior art, the occupied space is large, and the breakdown phenomenon is likely to happen are solved.

The utility model relates to a protective bottom pocket for construction of a bridge fabrication machine, which comprises a foldable bottom pocket and a protective cover, the middle unit comprises a positioning column and a middle bottom pocket, and the positioning column is connected with the middle bottom pocket and extends in the vertical direction; the folding unit comprises a tension cable, a positioning piece and a folding bottom pocket; one end of the tensioning cable is connected with the positioning column, the other end of the tensioning cable is connected with the folding bottom pocket, and the folding bottom pocket is hinged to the edge of the middle bottom pocket; the positioning piece is connected with the tensioning cable and the positioning column and is used for changing the inclination angle of the folding bottom pocket; the suspension beam is connected with the reverse hook beam through a suspension rod and located below the bottom die platform. The suspension beam extends along the longitudinal direction of the bridge body; the walking device is movably mounted on the suspension beam in the length direction of the suspension beam; and the lifting device is arranged on the walking device and is connected with the positioning column. According to the utility model, the overhead working amount is reduced, and the requirement on the size of a ground working platform is low.

The utility model relates to the technical field of electrical equipment, in particular to a copper bar assembly. According to the technical scheme, the device comprises a fixing frame, a screw rod, a supporting frame and a clamping sleeve, sliding grooves are formed in the two sides of the inner wall of the fixing frame, sliding blocks are slidably installed in the sliding grooves, the supporting frame is installed on the outer wall of one end of each sliding block, the screw rod is rotatably installed in the sliding grooves, and connecting blocks are in threaded connection with the outer walls of the two sides of the screw rod; and connecting frames are installed on the outer walls of the two sides of the fixing frame correspondingly, by arranging the screw rods, the connecting blocks and the fixing blocks, the effect of improving the copper bar fixing efficiency is achieved, the copper bars are extruded and fixed, the position stability of the copper bars is guaranteed, and the fixing efficiency of the copper bars is guaranteed.

The present invention relates to a high-preload torsion shear type high-strength single-sided self-tightening bolt and a method for using the bolt. The structure comprises a bolt body, a threaded sleeve is sleeved on the bolt rod of the bolt body, the two ends of the bolt rod are respectively a bolt head and a plum blossom head, a nut is installed on the bolt rod close to the plum blossom head through a thread, a first sleeve, a second sleeve, a third sleeve and a shear washer are sleeved on the bolt rod in sequence from the bolt head to the plum blossom head, an annular circular arc groove is provided on the inner circumferential wall of the first sleeve; the threaded sleeve is located in the third sleeve, when the plum blossom head of the bolt body is subjected to an axial force, the annular circular arc groove is deformed outwardly, the threaded sleeve may be positionally offset relative to the third sleeve, and at the same time, the threaded sleeve and the third sleeve exert pressure on the shear washer, and the third sleeve enters the inner cavity of the shear washer; the present invention can simply and quickly realize single-sided tightening operation, and the preload force and bearing capacity can meet the requirements of connection tightening in the steel structure design standard.

The utility model relates to the stamping field discloses a kind of lateral material pressing mechanism of stamping die. Including lateral material presser and elastic reset piece, the elastic reset piece is opposite with lateral material presser and is used to make lateral material presser reset, lateral material presser is located above positive material presser and is slidably matched with positive material presser, lateral material presser is equipped with inclined wedge upper baffle, inclined wedge upper baffle extends along the sliding direction of lateral material presser, the lateral material presser is slidably matched with inclined wedge upper baffle. The lateral material pressing mechanism of stamping die in the utility model solves the problem that the weight of upper die holder is too large, resulting in high cost of stamping die.

The utility model discloses a fixing device for contact surface modification, which belongs to the technical field of metal processing, and comprises a base, a plurality of positioning plates fixedly mounted above the base, a plurality of combined members for fixing contacts and mounted between every two positioning plates, and the combined members are of detachable structures. The combined member comprises positioning blocks installed on the two sides of the contact, fastening assemblies installed on the outer sides of the positioning blocks, and a contact cushion block installed between the contact and the base. The fixing device for contact surface modification is simple and reasonable in design, simple in structure, easy to manufacture and popularize and low in cost; the use is simple, and the consumption of labor cost is reduced; a plurality of contacts can be processed simultaneously, so that the working efficiency is improved, and the processing period is shortened; a contact gasket is additionally arranged between the contact and the base, so that vibration displacement is reduced; the cross screw and the cubic block are subjected to double fixing guarantee, so that machining failure caused by displacement is prevented; and the requirement on the size of a contact material is low, and common contacts can be used.

The invention discloses an annealing device for silicon wafer coating post-treatment, comprising: an annealing furnace having a feed port, a discharge port, an air inlet assembly and five cavities, the five cavities being a heating transition cavity, a heating cavity, a heat preservation cavity, a cooling cavity and a cooling transition cavity, the horizontal plane projection of the heating cavity being U-shaped; the conveying mechanism comprises a transfer assembly and two conveying assemblies, and each conveying assembly comprises a driving unit and a conveying roller; and the on-off assembly is arranged between the two adjacent cavities and has an intercepting form and a passing form. According to the annealing device for silicon wafer coating post-treatment, the length size of the heat preservation furnace is reduced through the U-shaped heat preservation cavity, connection and disconnection of the two adjacent cavities are controlled through the on-off assembly, heat energy diffusion is reduced, transition is achieved through the heating transition cavity and the cooling transition cavity, the heat energy utilization rate is increased, meanwhile, the material temperature change rate is slowed down, and the service life is prolonged. The annealing quality is improved.

The invention discloses a charger with a folding take-up mechanism, which comprises a first shell and a second shell, and an adjustable gap cavity is formed between the first shell and the second shell. A first metal insertion piece and a second metal insertion piece are installed on the first shell and the second shell in a folding mode respectively, and synchronous adjustment of the distance between the two metal insertion pieces is achieved by adjusting the distance between the gap cavities. And a rotating disc is rotationally mounted on the end surface of one side, far away from the first shell, of the second shell, is connected with a driving take-up mechanism arranged in the first shell and the second shell, and is used for carrying out take-up and pay-off operation on the power line in the rotating process and synchronously driving the first metal insertion sheet and the second metal insertion sheet to be opened or closed. The power line passes through the first housing and extends to the outside. Linkage control of take-up, insertion piece folding and insertion piece interval adjustment is realized through a single rotating disc, and the storage efficiency, the socket adaptability and the carrying convenience are improved while the structure is simplified.

The invention discloses a rotor suspension driving structure and method and a motor, and belongs to the technical field of magnetic suspension drive.The rotor suspension driving structure comprises a rotor suspension assembly and a rotor rotation driving assembly which are arranged on the two radial sides of a rotor, and working air gaps are formed between the rotor suspension assembly and the rotor rotation driving assembly and the rotor; the rotor is made of diamagnetic materials, the rotor suspension assembly below the rotor adopts a permanent magnet array and can be arranged in an Opposite or Halbach mode, passive and stable suspension support is provided for the rotor through magnetic repulsive force, the ratio of the suspension force to the gravity of the rotor is increased along with reduction of the scale, the miniature design of the bearing can be achieved, meanwhile, extra space is not occupied, and the bearing is more compact in structure and more compact in structure. And the size requirement of the motor can be further reduced.

The utility model discloses a multipurpose test field for agricultural technology development belongs to multipurpose test field technical field field, including test basin, the inside fixed cross bulkhead of test basin, and one side of cross bulkhead is inserted and is connected with no.

The invention discloses a finger vein recognition method based on compact binary coding learning, and relates to the technical field of mode recognition and image processing. The method comprises the following steps: extracting a finger vein texture difference vector, learning a mapping function, mapping and integrating features, calculating and splicing histograms block by block, matching features, and identifying finger veins. Existing algorithms have two main defects: (1) most of current methods highly depend on a rich priori knowledge base, which not only increases the complexity of implementation, but also is likely to be significantly influenced by adverse factors; and (2) the sample size of the existing finger vein database is small, and the finger vein recognition method based on deep learning is limited in practical application. According to the method, the recognition accuracy of finger vein recognition can be effectively improved under the condition of few samples, and meanwhile, the adaptability and generalization are high. Therefore, the method has certain application value and significance.

The utility model provides a novel villa elevator structure which comprises two guide rail supports and a machine frame system, the two guide rail supports are fixedly connected to the two opposite corners of an elevator shaft respectively, and a lift car is connected between the opposite sides of the two guide rail supports in a sliding mode. The elevator frame system comprises a car, a counterweight machine is fixedly connected to the bottom of one side of the car and located on one side of the inner wall of the elevator shaft, and a car frame is fixedly connected between the bottom, the front face and the back face of the car through bolts. The top-hung right-angle door opening structure with the traction ratio of 1: 1 is formed by the rack system and the upper beam body of the suspension bridge frame, so that a counterweight machine and a guide wheel above the car frame are omitted, the relative distance between the counterweight machine and the car is compressed, the saved space is transferred into the effective utilization space of the car, and the service life of the car is prolonged. The optionality of the elevator structure is improved, the requirement of the elevator for the size of the shaft is reduced, and the utilization efficiency of the shaft is improved.

The utility model discloses a modularization-free battery pack integration device, which comprises a battery pack box body, a battery cell accommodating cavity is arranged in the battery pack box body, and a battery cell mounting space is reserved on one side, close to the battery pack box body, of the battery cell accommodating cavity; the expansion part is arranged in the battery cell mounting space so as to expand when being separated from a vacuum environment; and the anti-expansion end plate is arranged at the end part of the battery pack box body so as to prevent expansion in the battery cell accommodating cavity. By utilizing the non-modular battery pack integration device disclosed by the utility model, the space utilization rate can be improved, the production efficiency can be improved, the cost can be reduced, the installation difficulty and the welding and size requirements on the box body can be effectively reduced, and the process equipment requirements of the battery pack in production and manufacturing can be reduced.

The utility model discloses a wharf extending device which comprises a cable-stayed steel wire rope, a leaning ball and an overhanging platform, the overhanging platform is connected with a mooring bollard on a wharf through the cable-stayed steel wire rope, one end of the overhanging platform abuts against the quay wall of the wharf, and the other end of the overhanging platform is used for supporting the leaning ball. The overhanging platform is hung on a mooring bollard of a wharf through the cable-stayed steel wire rope, and the local width of the wharf is increased by means of the overhanging platform, so that an installation foundation extending outwards from the wharf is provided for the leaning ball, and the requirement for the size of the leaning ball is effectively reduced; and berthing requirements of ships with protruding accessory equipment at the outer plate waterline such as FPSO and the like are met.

The invention belongs to the technical field of multi-leaf collimators, and particularly relates to a multi-leaf collimator blade driving method and a driving structure. The driving structure comprises a constant-torque fixed-rotating-speed motor, a plurality of transmission subsystems and a plurality of blades; the plurality of transmission subsystems are in one-to-one correspondence with the plurality of blades of the collimator; a single constant-torque fixed-rotating-speed motor is used as a power source, power is transmitted to collimator blades through transmission subsystems in one-to-one correspondence with a plurality of blades of the collimator, and the collimator blades are driven to complete linear motion; the power input ends of the transmission subsystems are connected in parallel. The driving blades only need a single high-power motor and are greatly different from a traditional multi-blade collimator, and the number of the blades of the traditional multi-blade collimator is the same as that of the motors for driving the blades. According to the driving structure, the moment of motion of the blades can be increased in a larger range, the motion speed is higher, the requirement for the size of the motor is greatly lowered, the requirement for the performance of the motor is lowered, and a large power change range is not needed.

The utility model discloses a high-efficiency sectional type inner winding stator structure, which comprises an annular iron core formed by splicing a plurality of stator core blocks, each stator core block comprises an arc-shaped yoke and three tooth columns arranged at the inner arc edge of the arc-shaped yoke at intervals, and the tooth columns are strip bodies with the same width. The opening width of the tooth groove between every two adjacent tooth columns is larger than the width of the tooth columns. The stator core block is reasonable in structural design, the tooth columns are strip bodies with the equal width, and the width of the tooth groove opening is larger than that of the tooth columns, so that the problem that a large space is occupied by independent arrangement of silicon steel sheets when the stator core block is manufactured due to insufficient tooth groove width of a traditional split type module is effectively solved. When the silicon steel sheets are blanked and arranged, the tooth columns on the stator core blocks can be embedded into tooth groove gaps on other stator core blocks to be arranged in a staggered mode, the material utilization rate is remarkably improved, waste of excess materials is reduced, meanwhile, the requirement for the mold size is reduced, and the production cost is greatly reduced. And the whole structure is simple, splicing and winding are easy, and the winding efficiency and the slot fullness rate are effectively improved.

The invention discloses a power device and a manufacturing method thereof. The power device comprises a gallium oxide substrate; the N-type gallium oxide epitaxial layer is located on the first side surface of the gallium oxide substrate; the P-type gallium nitride layer is located on the surface of the gallium oxide epitaxial layer, grooves are formed in the P-type gallium nitride layer, the P-type gallium nitride layer comprises a first region and a second region, the first region is located between the adjacent grooves, and the second region is located at the bottoms of the grooves; the first N-type gallium nitride layer is positioned in the surface of the first region of the P-type gallium nitride layer; the second N-type gallium nitride layer is positioned in the surface of the second region of the P-type gallium nitride layer; the gate dielectric layer and the gate electrode layer at least cover partial regions of the second N-type gallium nitride layer and the first N-type gallium nitride layer; the source electrode layer is electrically connected with the first N-type gallium nitride layer; and the drain electrode layer is electrically connected with one side, far away from the gallium oxide epitaxial layer, of the gallium oxide substrate. The power device combines the advantages of GaN and Ga2O3 materials, and has better performance.

The utility model discloses a transmission system of a hydraulic control double-cavity front retarder. The transmission system comprises an input shaft, an output shaft, a retarder, a torque converter and a lockup clutch. The retarder is installed on the input shaft, the input shaft is connected with a pump wheel cover wheel of the torque converter, the torque converter turbine is connected with the output shaft, the input shaft is connected with the engine, and the output shaft is connected with an input shaft of the gearbox. The retarder comprises a stator, a first rotor and a second rotor, the first rotor and the second rotor are both in running fit with the stator, and the first rotor and the second rotor are fixedly connected; a first oil cavity and a second oil cavity are formed in the retarder, the first oil cavity is located between the first rotor and the stator, the second oil cavity is located between the second rotor and the stator, the first oil cavity is communicated with the second oil cavity, and a retarder oil inlet communicated with the first oil cavity and a retarder oil outlet communicated with the second oil cavity are formed in the stator. By means of the arrangement, the scheme has the larger braking torque, the requirement for the size of the retarder is smaller, and the cost is lower.

The present invention discloses an installation device for an insulating pad, which includes a feed turntable, a mounting mechanism and a detection mechanism. The feed turntable is used for carrying a support cup, the mounting mechanism includes a rotating drive component and a first adsorption component connected to the rotating drive component, the first adsorption component is used for adsorbing the insulating pad carried on the support cup, the rotating drive component is used for driving the first adsorption component to rotate, and the detection mechanism is used for performing position detection on the insulating pad adsorbed on the first adsorption component, so that the rotating drive component can drive the insulating pad to rotate to a predetermined position through the first adsorption component, and the insulating pad can be positioned through the mounting mechanism before being inserted into a battery, thereby realizing disordered feeding of the insulating pad, reducing the specification and size requirements of the support cup, and improving the versatility of the support cup, and the positioning and insertion of the insulating pad can be directly realized through the mounting mechanism, which can improve the installation accuracy of the insulating pad.