651 results about "Gear pump" patented technology

The invention relates to the technical field of logistics warehouse storage equipment, in particular to a speed reduction control method for a high-speed motor driven hydraulic system, which comprises the following steps: S1, the output torque of a high-speed motor is transmitted to a gear pump through a motor shaft, a planetary reducer and a planet carrier in sequence to drive the gear pump to work; s2, acquiring a three-phase current instantaneous signal and a direct current bus voltage signal, and performing preprocessing and frequency spectrum conversion to determine a current frequency spectrum; s3, in the current frequency spectrum, extracting an energy value in a preset frequency band with the meshing frequency and harmonic waves of the planetary gear as the center, and calculating to obtain a disturbance characterization value of the planetary gear; s4, determining a torque smooth adjustment coefficient according to the planet wheel disturbance characterization value; and S5, dynamically adjusting a dynamic response parameter of a torque control ring of the high-speed motor according to the torque smooth adjustment coefficient. The problems that in the prior art, a high-rotating-speed motor and a hydraulic pump are not matched in rotating speed, and mechanical disturbance is difficult to restrain are solved.

The invention discloses an aviation fuel gear pump confidence degree evaluation method based on the Bayesian theory. The method comprises the following steps: step 1, firstly, determining Weibull distribution as a theoretical basis of reliability modeling according to the life characteristics of the aviation fuel gear pump, and providing probability model support for subsequent analysis; 2, on the basis of Weibull distribution, adopting a Bayesian method to fuse historical data and field test data, and achieving point estimation and interval estimation of shape parameters and scale parameters of the aviation fuel gear pump; and step 3, based on the point estimation and the interval estimation, constructing an MTBF confidence interval and verifying by adopting a Bootstrap method, and finally completing quantitative evaluation of the reliability confidence of the aviation fuel gear pump. According to the method, the specific problems of low evaluation precision, poor confidence interval reliability and insufficient historical data utilization rate of a traditional method under the small sample condition are solved.

The invention belongs to the technical field of lifting tools, and particularly discloses a lifting device oil way system, a lifting device, a jack, a pressing machine and a crane. The oil way system of the lifting device comprises a lifting oil cylinder, an oil tank, a first oil inlet way, a second oil inlet way and an oil return pipeline, the first oil inlet path is an oil inlet path of the gear pump assembly; and the second oil inlet path is an oil inlet path of the plunger pump assembly. When the lifting device is in the no-load or low-pressure condition, the gear pump assembly can rapidly pump in much hydraulic oil with small pressure so that the lifting device can rapidly ascend or descend, the defect that in the prior art, the displacement speed of a hydraulic lifting pump is low under the no-load or low-pressure condition is overcome, and the user experience is improved; when the hydraulic lifting pump is in a high-pressure condition, the plunger pump assembly can pump high-pressure hydraulic oil into the lifting oil cylinder so that the lifting oil cylinder can ascend or descend slowly, the lifting device can move slowly, and the normal use requirement of a user is met.

The disclosure discloses an oil circuit system, a lifting device, an electric jack, a press, a crane, and a tire mounting / dismounting and transport apparatus. The oil circuit system comprises a lifting oil cylinder, the tank, the first oil feed line, the second oil feed line, the oil inlet / outlet line, the pressure relief line, the oil return line, the first valve, the second valve; the first oil feed line is the gear pump assembly oil feed line; and the second oil feed line is the plunger pump assembly oil feed line. Under no-load or low-pressure conditions of the lifting device, the gear pump assembly can quickly pump a larger volume of low-pressure hydraulic oil, enabling quick lifting or lowering of the lifting device. Under high-pressure conditions, the plunger pump assembly can quickly pump higher pressure hydraulic oil to the lifting oil cylinder to enable slow lifting or lowering.

A kind of converging type pressure increasing gerotor pump.This application relates to the improvement of gerotor internal gear pump structure.By staggered compensation, avoid the flow pulsation caused by pump cavity volume change, and then realize the output pressure boost, and run smoothly.This application includes high pressure pump body, low pressure pump body and main shaft, the axis of outer rotor A and outer rotor B is arranged on one side of the main shaft, the axis of high pressure pump outer rotor is arranged on the other side of the main shaft, and the axis of outer rotor A is + alpha angle relative to horizontal line, the axis of outer rotor B is - alpha angle relative to horizontal line, alpha = 360 ° / 2N, N is the number of inner rotor teeth.This application adopts the ingenious design of rotor eccentric installation, realizes the pressure boost of pump, and the staggered compensation solves the flow pulsation caused by pump cavity volume change, provides stable flow for high pressure booster pump inlet.This application can be widely used in new energy vehicles, wind power, air conditioning, generator, industrial production, chemical industry, petroleum, metallurgy, water treatment and other fields, for conveying various liquids.

The novel 20Kw aluminum alloy PTO gear box comprises a front box cover, an input shaft and a large gear, a rear box cover is installed on the outer side of the rear end of the front box cover, a vent valve is arranged in the upper end of the front box cover in a communicating mode, and an output shaft is installed in the upper end of the rear box cover; an input shaft is installed in the lower end of the front box cover in a penetrating mode, and the rear end of the input shaft is connected with a bearing. A large gear is installed on the outer side of the input shaft. The utility model belongs to the technical field of PTO gear boxes, and aims to solve the problems that in the prior art, a hydraulic system of a tractor is small in flow, a power output shaft and a gear pump are difficult to install, and a small-power gear box is insufficient in power, so that the flow of the gear pump connected with the small-power gear box is insufficient. The technical effect is that the problems that the flow of a hydraulic system of the tractor is small, the power output shaft and the gear pump are difficult to install, and the flow of the gear pump connected with a small-power gear box is insufficient due to insufficient power of the small-power gear box are effectively solved.

This utility model provides an internal gear pump with crescent-shaped blocks, including a pump body, a pump cover, an internal gear ring, and an external gear meshing with the internal gear ring. An outer crescent-shaped block and an inner crescent-shaped block are disposed between the internal gear ring and the external gear. The outer crescent-shaped block has an outer arc surface that can engage with multiple tooth tips of the internal gear ring. The inner crescent-shaped block is composed of a first inner crescent-shaped block and a second inner crescent-shaped block, both of which have inner arc surfaces that can engage with multiple tooth tips of the external gear. A positioning pin is installed between the first and second inner crescent-shaped blocks. A pin hole is provided at one end of each of the first and second inner crescent-shaped blocks near the positioning pin for installing a rotating pin. The first and second inner crescent-shaped blocks can rotate around the rotating pin. A notch is provided in the middle of the outer crescent-shaped block corresponding to the positions of the two positioning pins. Rubber rods and springs are provided between the outer crescent-shaped block and the first and second inner crescent-shaped blocks to compensate for the radial clearance between the inner and outer crescent-shaped blocks.

The utility model provides a gear pump with high sealing performance, and belongs to the technical field of gear pumps. The problem that in the prior art, a gear pump is insufficient in sealing performance is solved. The pump comprises a pump head and a pump shell, the pump head is connected with one side of the pump shell, a first cam rotor and a second cam rotor are arranged in the pump head, one side of the pump shell is fixedly connected with a pump side cover, a driving shaft and a driven shaft are arranged in the pump shell, and the driving shaft and the driven shaft are longitudinally arranged. The end of the driving shaft and the end of the driven shaft are fixedly sleeved with a driving gear and a driven gear respectively, the portion, on one side of the driving gear, of the driving shaft is fixedly sleeved with a first sealing ring, one end of the driving shaft extends out of the pump side cover, and the other end of the driving shaft is connected with a first cam rotor. A third sealing ring is fixedly sleeved on the driving shaft on one side of the first shaft connecting bearing, the third sealing ring is fixedly attached to the end face of the outer side of the pump shell, a second sealing ring is fixedly sleeved on the driven shaft on one side of the driven gear, the other end of the driven shaft extends into the pump head and is connected with a second cam rotor, and a second shaft connecting bearing is fixedly sleeved on the driven shaft. A fourth sealing ring is fixedly arranged on the driven shaft on one side of the second shaft connecting bearing in a sleeving mode and fixedly attached to the end face of the outer side of the pump shell. The sealing structure has the advantage of being good in sealing performance.

The utility model discloses a battery piece glue supplementing device. The device comprises a supporting assembly which is connected with an external fixing piece and is suspended; the optical detection assembly is fixedly arranged on the supporting assembly; the glue supplementing assembly comprises a glue injection barrel, a gear pump and a glue supplementing needle tube, the glue injection barrel is connected with the supporting assembly, the input end of the gear pump is connected with the glue injection barrel, the output end of the gear pump is connected with the glue supplementing needle tube, and the gear pump is used for conveying glue in the glue injection barrel to the glue supplementing needle tube; the glue supplementing assembly fixing support is connected with the supporting assembly, a gear pump and a glue injection barrel are borne above the glue supplementing assembly fixing support, a sliding block, a sliding block rail and a sliding block driving component are arranged below the glue supplementing assembly fixing support, and the sliding block is connected with a glue supplementing needle tube and the sliding block driving component; and the upper computer is in communication connection with the optical detection assembly and the sliding block driving component and is used for receiving the glue supplementing area of the battery piece transmitted by the optical detection assembly and controlling the sliding block driving component to move the glue supplementing needle tube to the glue supplementing area. According to the invention, the photo-sensitive resist which is frequently washed off in the developing process is supplemented, and the yield of the battery piece is improved.

The utility model discloses an online purification device for a hydraulic station, which relates to the technical field of purification of hydraulic stations, is used for solving the problems in the prior art and comprises a purification device frame, a water absorption filter, a precision filter and a control cabinet are arranged on the purification device frame, the water absorption filter is connected with an oil inlet pipe, and the precision filter is connected with an oil outlet pipe. The water absorption filter is connected with the precision filter through a pipeline, and the end of the oil inlet pipe is an oil inlet pipe opening; a variable frequency gear pump, an oil inlet sampling valve, an oil inlet window and a first pressure sensor are sequentially arranged on the oil inlet pipe from an oil inlet pipe opening to the water absorption filter; according to the scheme, online purification is conducted, the structural design is reasonable, the matching effect is good, the cleanliness and the water content of the purified oil product can be obviously improved, the oil product quality is guaranteed, meanwhile, energy consumption is reduced, manual guarding is not needed, the energy consumption is reduced, and the production efficiency is improved. And the labor intensity of workers is reduced.

This disclosure provides a process. In one embodiment, the process includes providing an apparatus. The apparatus includes (A) a passage having side walls having an interior for receiving a first flowstream (FFS1), and the passage having an inlet end and an outlet end on the opposite side. The apparatus includes (B) a gear pump assembly. The gear pump assembly includes (i) a housing, (ii) a gear chamber within the housing, (iii) an inlet for fluid communication of the passage with the gear chamber, (iv) a plurality of meshing gears mounted to rotate within the gear chamber, the gears having teeth that engage with each other within the chamber, and each gear having a pivot axis, and (v) an outlet for fluid communication with the gear chamber. The apparatus includes (C) one or more injectors upstream of the gear pump assembly for adding a second fluid to the first flowstream (FFS1). Each injector is located in a side wall. The process includes introducing the second fluid into the FFS1 from each injector located in its respective side wall, and supplying the FFS1 and the second fluid into the inlet. This process includes mixing a second fluid with FFS1 in a gear chamber to form a mixed fluid flow stream (mFFS), and discharging the mFFS from an outlet.

This invention relates to the field of transformer technology and discloses a transformer with a rapid oil drainage structure, including a transformer body. An oil tank groove is formed on the inner wall of the transformer body. A support frame is fixedly mounted at the bottom of the transformer body, and an auxiliary frame is fixedly mounted at the bottom of the support frame. A motor is fixedly mounted on the inner wall of the auxiliary frame, and a transmission rod is fixedly sleeved on the output shaft of the motor. An oil inlet plate is fixedly mounted on the top of the transmission rod, and the bottom of the oil inlet plate is rotatably connected to the bottom of the inner wall of the oil tank groove. A guide groove is formed on the inner wall of the oil inlet plate. By employing a three-layer oil drainage pipeline consisting of an upper pressure-sensing electric valve, a middle electromagnetic ball valve with a throttle valve, and a lower rotating oil inlet plate and a one-way gear pump, synchronous oil flow can be achieved in emergency scenarios, improving the oil drainage efficiency compared to traditional structures. The lower rotating oil inlet plate, combined with a silicone scraper, can scrape away deposited impurities at the bottom of the oil tank, and the negative pressure suction of the one-way gear pump reduces the residual oil rate.

The utility model provides an active liquid supply foam production device which comprises a shell, and an accommodating space is formed in the shell; the driving bubble making gear and the driven bubble making gear are meshed with each other and are rotationally arranged in the accommodating space; a suction cavity is formed in the gear disengagement side in the containing space, and a discharge cavity is formed in the gear engagement side in the containing space. The outer wall of the shell is provided with a foam output port communicated with the discharge chamber and an air inlet communicated with the suction chamber; the active liquid supply device is communicated with the accommodating space, and the mixed liquid is actively fed into the accommodating space through the active liquid supply device; and the output end of the driving device is connected with the driving foaming gear. The active liquid supply device has the advantages that the active liquid supply device can be used for actively supplying liquid to the gear pump for producing foam, so that the liquid supply requirement of the gear pump is met, mixed liquid can be prepared in real time, and the use effect is ensured.

An oil pump for a motor vehicle, in particular an electrically operated gear pump, contains a pump housing that is closed relative to an end side by a housing cover, a shaft which extends in a longitudinal direction and to which a pump wheel is secured. The shaft is mounted on a first bearing and on a second bearing on both sides of the pump wheel. A pressure chamber is formed on a pressure side, and a lubricant channel leads from the pressure chamber to the shaft in a region of the first bearing for the lubrication of the two bearings. Between the shaft and the pump wheel secured to the shaft, at least one longitudinal channel also leads along the pump wheel to the second bearing.

The invention relates to the technical field of gear pumps, in particular to a glue injection device for a gear pump, which comprises an operation table and a glue injection machine, a fixing plate is fixedly arranged at the top end of the operation table, the glue injection machine is mounted in the center of the fixing plate, a positioning mechanism is fixedly arranged in the center of the table top of the operation table, and the positioning mechanism comprises a base plate; a fixing column is fixedly arranged at the top end of the base plate, a dispensing plate is assembled at the top end of the fixing column, feeding mechanisms are arranged on the two sides of the positioning mechanism and comprise main lifting assemblies, the main lifting assemblies are located on the left side of the positioning mechanism, and the top ends of the main lifting assemblies are connected with the front side of the left end of a transmission assembly. The gear pump can be conveniently moved, meanwhile, positioning can be conducted, a glue injection machine at the top end can conveniently inject glue, positioning time is shortened, labor burden caused by manual hand holding is reduced, physical output is reduced, efficiency is further improved, the interval time of glue injection of the gear pump is shortened, and production efficiency is improved.

The utility model provides a gear pump convenient to overhaul, belongs to the field of gear pumps, and solves the problem that the existing gear pump is difficult to overhaul as a pump body and a pump cover are fixedly connected through bolts. A fixing part extends from the pump body, a step is arranged between the fixing part and the pump body, a clamping groove is formed in the fixing part, an installation groove is formed in the pump cover, a sliding groove is formed in the side wall of the installation groove, a limiting gear is installed in the installation groove, the limiting gear is meshed with a rack, the rack is in sliding connection with the sliding groove, the rack penetrates through the clamping groove, and a spline groove is formed in the gear. The pump cover is provided with a torsion grip which is provided with a spline section, and the installation groove is provided with a through groove communicated with the outside. The utility model has the advantages that the pump cover is fixedly connected with the pump body by arranging a gear rack meshing structure in the pump cover, and the pump cover is controlled by twisting the grip, so that the unlocking is quick and convenient, and the maintenance is convenient; and the torsion grip is mounted on the pump cover and is convenient to take, so that the maintenance efficiency is improved.

Disclosed is an ergonomic device for mixing fluids with controlled metering, provided with at least a mixing system adapted to allow an automatic mixing in predetermined quantities of an additive fluid with a primary fluid. The device includes: at least a first coupling flange and a second coupling flange, provided with a plurality of connection systems, which may be located in the zone, and seals adapted to contain fluid leaks; a substantially cylindrical body of the device adapted to house a mixing system; a mixing mechanism consisting of an axis and a plurality of blades; at least one ergonomic grip; possibly an integrated train of reduction gears which transmits the correct torque and number of revolutions to the pump; at least one gear pump or equivalent device; possibly a gearbox; and a final metering nozzle.

The electro-hydraulic integrated push rod comprises a hydraulic cylinder and a drive control assembly which are sequentially connected, the hydraulic cylinder comprises a cylinder barrel assembly, and a piston rod is arranged in the cylinder barrel assembly in a sliding mode; the driving control assembly comprises a driving module, a valve block and an oil tank assembly, and the valve block is mounted at the tail end of the oil tank assembly; the driving module comprises a driving motor, the driving motor is arranged at the rear end of the valve block, a motor shaft of the driving motor penetrates through the center of the valve block to be connected with a bidirectional gear pump, and the bidirectional gear pump is arranged in the oil tank assembly; the system further comprises a PLC control system. The PLC control system comprises a PLC and a power module. The hydraulic cylinder and the driving control assembly are arranged in a split mode, meanwhile, the valve block is arranged on the outer side of the oil tank, the requirements that an electro-hydraulic integrated push rod is compact in structure and easy to disassemble and assemble are met, maintenance and replacement are convenient, and the characteristics that an electric push rod is small in size and flexible in configuration and the characteristics that an oil hydraulic cylinder is stable in work, high in reliability and small in high-speed impact force can be integrated.

The utility model discloses a three-screw deep devolatilization extrusion double-stage unit of a vaporization concentration eliminator, which comprises an upper-stage slit fin type vaporization eliminator, a gear pump and a lower-stage three-screw deep devolatilization extruder. A material discharged from the bottom of the slit fin type vaporization discharger is conveyed into a feeding hole of the three-screw deep devolatilization extruder; the slit fin type vaporization discharger comprises a tank body inner wall, a tank body outer wall and a heating medium jacket, the top of the slit fin type vaporization discharger is provided with a sizing material feeding port, and the bottom of the slit fin type vaporization discharger is provided with a sizing material discharging port and a tank body heating medium inlet; an internal heating unit heating medium inlet and an internal heating unit heating medium outlet are formed in the two sides of the top of the slit fin type vaporization ejector, and a tank body heating medium outlet and a devolatilization opening are formed in the two sides of the slit fin type vaporization ejector. The three-screw deep devolatilization extrusion two-stage unit is more efficient in the aspects of extrusion amount and residual volatile component indexes and higher in heat exchange efficiency.

The invention discloses a device and a method for preparing diacetate fiber tows with adjustable total denier. The device comprises a dissolving kettle, a filtering system, a gear pump, a pressure sensor, a spinneret cap assembly, a channel, a wire feeding roller and a motor. Wherein the spinneret cap assembly is provided with an adjustable opening adjuster, and the number of the fan-shaped adjusting units is increased or decreased to control the effective opening number of the spinneret orifices, so that the total denier number of tows is continuously adjusted. And in cooperation with rotation speed adjustment of the gear pump, the production requirements of tows of different specifications can be met, and efficient and flexible preparation of the tows with multiple total deniers is achieved. The method comprises the steps of dissolving, filtering, spinning and total denier adjusting, and accurate control over the total denier number is achieved by synchronously adjusting the number of the fan-shaped adjusting units and the rotating speed of the gear pump. The device is compact in structure, convenient to adjust, good in sealing performance and suitable for large-scale production of the diacetate fiber tows.

The invention discloses a cigarette making machine glue supply device and method, and belongs to the technical field of tobacco machinery. The device comprises a glue barrel, a movable barrel cover unit and a glue solution conveying unit. The movable barrel cover unit comprises a cover body, a sealing gasket, an electromagnetic valve, an air pressure adjusting pump and a liquid level detector, and reliable sealing and bubble elimination are achieved by establishing a negative pressure environment. And the glue solution conveying unit is used for conveying the glue solution to the glue supply gear pump. The glue barrel is rapidly replaced through the design of the movable barrel cover, potential safety hazards caused by traditional disassembly and cleaning are avoided, and the glue barrel has the advantages of being safe to operate and easy and convenient to maintain.

An electric drive filter performance test bench comprises a test medium box and a pollutant medium box, and the pollutant medium box is communicated with the test medium box through a pollutant conveying pipeline. A test pipeline is further communicated with the test medium box, one end of the test pipeline is arranged in the test medium box and communicated with a filter to be tested, the other end of the test pipeline is communicated with the test medium box, and an absolute pressure sensor, a gear pump set, a system filter, a flow meter and an adjusting valve are sequentially installed on the test pipeline. A sampling port is also arranged on the test pipeline at the absolute pressure sensor; a first three-way valve and a second three-way valve are respectively arranged on the test pipeline at two sides of the system filter; the test pipeline between the absolute pressure sensor and the gear pump set is provided with a preparation port, and a preparation pipeline is communicated between the preparation port and the test medium box. According to the invention, the actual working state of the electric filter can be well simulated, so that the performance of the electric filter under the actual working condition can be reflected to the greatest extent.

An internal gear pump, a hydraulic system and a vehicle. The internal gear pump comprises: a housing, a ring gear, a gear and a partition block. The ring gear is rotationally mounted in the housing; the gear is eccentrically engaged with the ring gear, such that an accommodating space is formed between the ring gear and the gear; the partition block is mounted in the accommodating space and divides the accommodating space into a first chamber and a second chamber, a first oil groove is provided between the ring gear and the housing at a position corresponding to the first chamber, and is in communication with the first chamber; and a second oil groove is provided between the ring gear and the housing at a position corresponding to the second chamber, and is in communication with the second chamber.

The utility model relates to the technical field of lubricating oil filling, and discloses a subway train lubricating oil intelligent filling device which comprises a cabinet body, an oil drum is installed at the bottom end in a cabinet body cavity, and a serial port display screen, a self-reset switch and an emergency switch are arranged at the top end of the cabinet body. The execution module comprises a direct-current brushless motor and a bidirectional gear pump; the control module comprises a single chip microcomputer and a double-gear rotary switch; the power module comprises a graphene lead-acid battery pack, a double-control air switch and a power adapter; and a signal acquisition module. The signal collecting module is used for collecting information of all the modules, the power module is used for supplying power, the control module is used for operating and controlling equipment, the execution module is used for controlling in and out of lubricating oil, all the modules are matched with one another through the reasonable structural design, and the device is small in structure, high in oil injection efficiency and high in use convenience.

This invention provides a pressure plate structure for a glue applicator, a glue applicator, and a method for isolating the pressure plate sealing ring from the glue. The pressure plate structure for the glue applicator includes a pressure plate assembly and a sleeve; the sleeve is fitted onto the pressure plate assembly; the pressure plate assembly includes a pressure plate body, a pressure plate base plate, a first sealing ring, a gear pump, and a fluid channel; the gear pump is mounted on the pressure plate body, the pressure plate base plate is located at the bottom of the pressure plate body, and the first sealing ring is installed between the pressure plate body and the pressure plate base plate; the outer diameter of the first sealing ring is larger than the outer diameters of the pressure plate body and the pressure plate base plate; one end of the fluid channel is located at the bottom of the pressure plate base plate, and the other end of the fluid channel passes sequentially through the pressure plate base plate and the pressure plate body and is connected to the gear pump. This invention uses a sleeve design to ensure a tight fit between the sleeve and the pressure plate, achieving the effect of preventing the glue from contacting the pressure plate sealing ring, thereby protecting the sealing ring and improving the overall working efficiency of the glue applicator.

The hydraulic cylinder lifting assembly comprises a bottom plate, an outer cylinder body, a piston rod, an inner cylinder body, a manual pump, a gear pump and an electromagnetic valve, an oil storage cavity is arranged between the outer cylinder body and the inner cylinder body, the piston rod is arranged in the inner cylinder body in a sliding mode, the manual pump and the gear pump are respectively communicated with the oil storage cavity, and the electromagnetic valve is arranged in the oil storage cavity. Hydraulic oil in the oil storage cavity is conveyed to a high-pressure area at the bottom of the piston rod; the electromagnetic valve is arranged on the bottom plate and communicated with the bottom of the hydraulic cylinder and the oil storage cavity, and when the electromagnetic valve is opened, hydraulic oil in the high-pressure area flows back to the oil storage cavity through the electromagnetic valve to enable the piston rod to descend. The utility model provides a hydraulic cylinder lifting assembly, which is driven by a gear pump and a manual pump, realizes electric and manual lifting, ensures that the hydraulic cylinder lifting assembly can still be used when electric power is insufficient or electrical faults occur, improves the adaptability and reliability of a forklift, and keeps a simple and compact design at the same time.

The invention provides an efficient colloid mill system which comprises a colloid mill, a discharge port of the colloid mill is connected with a storage tank through a first discharge pipe, the storage tank is connected with a gear pump through a second discharge pipe, and a discharge port of the gear pump is communicated with the colloid mill through a third discharge pipe; an air source processor or a pressure regulating valve is arranged at one end, close to the colloid mill, of the third discharging pipe; an integrated temperature transmitter is arranged at one end, close to the air source processor or the pressure regulating valve, of the third discharging pipe; one end, close to the gear pump, of the third discharging pipe is communicated with a discharging pipe; a discharging ball valve is arranged on the discharging pipe; a second ball valve is arranged on the third discharging pipe between the discharging pipe and the integrated temperature transmitter; therefore, through cooperation of the colloid mill, the storage tank, the gear pump, the air source processor or the pressure regulating valve, the integrated temperature transmitter, the discharging ball valve and the like, one-key production is achieved, manual operation is greatly reduced, production efficiency is improved, and personal errors are completely eradicated.

The application discloses a steering brake system and engineering machinery, the steering brake system comprises a gear pump, the oil outlet of the gear pump is connected with the P port of a priority valve, the EF port of the priority valve is combined with a working system, the CF port of the priority valve is connected with the P port of a steering gear and the P port of a signal control valve respectively, the Ls port of the steering gear is connected with the Ls2 port of the signal control valve, the Ls port of the priority valve is connected with the Ls1 port of the signal control valve, the A port of the signal control valve and the P port of a brake valve are connected with an accumulator respectively, the steering gear is used for controlling a steering oil cylinder to realize steering, the signal control valve is used for controlling parking brake, and the brake valve is used for controlling service brake. The application realizes that working, steering and braking share an oil source, the intermittent working characteristics of the brake system are utilized to avoid mutual interference of the working and the steering when they work simultaneously, and steering and braking performances are ensured.

This disclosure provides a process. In one embodiment, the process includes providing an apparatus. The apparatus includes (A) a passage having an interior for receiving a first flowstream (FFS1) containing a molten polymer composition, the passage having an inlet end and an outlet end on the opposite side. The apparatus includes a gear pump assembly having (B) (i) a housing, (ii) a gear chamber within the housing, (iii) an inlet having a width (Iw) that fluidizes the outlet end of the passage to the gear chamber, (iv) a plurality of meshing gears mounted to rotate within the gear chamber, the gears having teeth that engage with each other within the chamber, and (v) an outlet that fluidizes the gear chamber. The apparatus includes (C) one or more injectors upstream of the gear pump assembly for adding a second fluid to the first flowstream. The second fluid consists of an optional radical-graftable species, an optional curing agent, and a peroxide. The peroxide has an activation temperature. This process includes introducing a second fluid into the FFS1 from each injector at a position upstream of the inlet, and supplying the FFS1 and the second fluid into the inlet. This process includes mixing the second fluid with the FFS1 in the gear chamber to form a mixed fluid flowstream (mFFS), and discharging the mFFS from the outlet into the die head to form a molded article. This process includes passing the molded article through a curing chamber, and crosslinking the polymer in the curing chamber to form a crosslinked molded article (CSA).

1. Name of the product in this design: Hydraulic station cover. 2. Purpose of this design: To prevent damage to the oil pump motor and gear pump caused by impact. 3. The key design feature of this product is its shape. 4. The image or photograph that best illustrates the design's key points: 3D rendering 1.