616 results about "Working pressure" patented technology

The invention relates to the technical field of petrochemical equipment sealing, in particular to a flange sealing performance evaluation method based on bolt axial stress, which comprises the following steps: establishing a nonlinear stress relationship between a gasket and bolt axial force; establishing a relationship between the axial stress of the bolt and the sealing contact stress of the contact surface of the gasket under different working pressures; constructing a three-dimensional model of a real sealing surface; establishing a three-dimensional model of the sealing surface contact process; obtaining the change of a leakage gap between the contact surfaces under different contact stresses, and establishing a relation model of the leakage gap of the contact interface and the sealing contact stress; establishing a quantitative evaluation model among the sealing contact stress, the leakage clearance and the leakage rate; obtaining the contact stress under the actual working condition, and calculating whether the corresponding leakage rate meets the tightness judgment standard or not so as to judge the sealing state of the flange. The invention aims to solve the technical problem that the metal sealing performance of in-service flange connection cannot be quantitatively and online evaluated in the prior art.

The invention belongs to the technical field of shoe sole waste recycling treatment, and discloses a shoe sole processing waste recycling device which comprises a crushing box, two groups of crushing rollers are rotatably arranged on the inner side of the crushing box, linkage pressure applying assemblies are arranged on the two sides of the crushing rollers, and each linkage pressure applying assembly comprises two groups of limiting guide columns. According to the crushing device, through cooperation of structures such as the linkage pressure applying assembly and the crushing rollers, power can be provided for the pressure applying device when the crushing rollers rotate, it is guaranteed that downward pressure is provided while the crushing rollers rotate, and the crushing efficiency is improved; and therefore, the problems that the normal crushing treatment is influenced due to accumulation or clamping stagnation caused by the fact that rubber cannot be quickly concentrated between the crushing rollers, and the working pressure of workers is greatly increased are effectively solved.

The invention relates to the technical field of energy storage and heat dissipation, and discloses a centralized energy storage power station heat dissipation system. A data acquisition module of the system obtains historical operation data at different altitudes and generates a historical cooling parameter set; a feature analysis module extracts features from the features to obtain a historical feature parameter set, and a trend change feature matrix is established according to the historical feature parameter set; the pressure adjusting module constructs a pressure control space based on the matrix, and determines a feature early warning index set by calculating the parameter aggregation degree of historical abnormal events; the heat dissipation execution module extracts real-time characteristic parameters to establish state vectors, and calculates the position deviation degree between the state vectors and the early warning index set to generate real-time pressure regulation factors. The pressure adjusting module generates a pressure control model in combination with real-time adjusting factors, historical characteristic parameters and a trend matrix and outputs cooperative control parameters of the variable-frequency screw pump and the gear pump, precise adjustment of the working pressure of the cooling liquid is achieved, and efficient and stable operation of the energy storage power station is guaranteed.

The invention relates to the technical field of compressor temperature control, and discloses a compressor temperature control system capable of preventing generation of condensate water, which comprises a sensing module, an execution module and a controller. The sensing module is used for collecting air temperature, relative humidity, system working pressure and circulating oil temperature parameters of the compressor in real time. The controller is configured to calculate the current pressure dew point of the system based on the air temperature, the relative humidity and the working pressure of the system; the pressure dew point serves as a floating lower limit, a preset system optimal working temperature upper limit serves as a fixed upper limit, and a dynamic safe working interval is determined; finally, a cooling unit and a heating unit in the execution module are cooperatively controlled to work according to the relation between the circulating oil temperature and the dynamic safety working interval. By establishing the dynamic safety lower limit changing along with the working condition, the problem that the compressor is prone to generating condensate water under the high-humidity or low-load working condition to cause oil emulsification is effectively solved, and accurate and energy-saving temperature control is achieved.

The present disclosure provides a solution for a system and a method for converting heat into work. The solution makes use of a nozzle, in which pressurized heat transfer liquid (HTL) and a Liquid-Vapor-Phase-Changing (LVPhC) working fluid is about the same pressure are mixed to form a LVPhC-HTL mixture, which in turn undergoes evaporation and isothermal or quasi-isothermal expansion while flowing in the nozzle that results in acceleration of the mixture. The accelerated mixture is ejected from to thereby rotate a turbine and produce work from the generated kinetic energy. The LVPhC is separated from the mixture and condensed after its ejection from the nozzle and its pressure is elevated back to the working pressure in the nozzle. The present solution exploits the thermodynamic advantages of each phase of the LVPhC.

The invention relates to the technical field of high-end equipment manufacturing, in particular to a friction stir welding system pressure control method and system, electronic equipment and a storage medium, and the method comprises the steps that real-time sensor data in the welding process is obtained, and a controller preset algorithm module is used for analyzing and processing to obtain a real-time pressure value; and meanwhile, a plurality of modules such as a self-adaptive control algorithm module, a pressure prediction model, an online parameter identification model, a multi-mode switching module, an abnormal prediction model and an equipment health state evaluation model are further arranged to realize dynamic adjustment and control. The effects that the working pressure value of the friction stir welding system can be continuously and dynamically adjusted, the welding process is kept stable, self-adaptive control and precise control are achieved, the welding quality stability is improved, abnormity is early warned, parameters are adjusted, and the fault-tolerant threshold value is dynamically adjusted to maintain the control precision are achieved.

The invention relates to a valve arrangement (1; 81; 91) with several functional modules arranged in series from the group: valve disc group (8), safety valve group (7), throttle valve (171), wherein the valve disc group (8) has one or more valve discs (101, 102), each with at least one electrically controllable valve (103, 104) which is connected to an electrical supply line (17) and to a fluid supply line (18), wherein the throttle valve (171) is arranged upstream of the safety valve group (7) between a fluid connection (36) and the fluid supply line (18) of the valve disc group (8), wherein the safety valve group (7) has two safety valves (51, 52) which are designed to influence a fluid flow between the fluid connection (36) and the fluid supply line (18),wherein the safety control (7) is designed for the safety-oriented blocking of electrical control signals for the safety valves (51, 52), wherein the throttle valve is designed for a temporary reduction of a working pressure in the fluid supply line (18), and wherein a valve control (5) is designed to control the valve disc group (8) and the safety valve group (7).

The invention discloses a self-adaptive parameter control system and method for a halfpace field rice transplanter based on full-hydraulic transmission, particularly relates to the technical field of hydraulic parameter control, and aims to solve the technical problem of dynamic power competition between a walking system and a planting device when the full-hydraulic transmission rice transplanter works in a halfpace field. Working pressure signals of a walking motor and a planting device are monitored in real time, the divergence degree of envelope lines of the two pressure signals is calculated so as to recognize the power competition state of a system, and when power competition is detected, the required power of two execution mechanisms is dynamically calculated, and a hydraulic pump displacement distribution coefficient is generated; and then the interaction characteristics of the outlet pressure of the main pump and the output flow signal and the transmission characteristics of the pressure signal of the executing mechanism are fused, the dynamic balance degree of the system is generated, the displacement distribution coefficient is corrected, and finally the opening degree of the walking motor and the proportional valve of the planting device is synchronously adjusted based on the corrected coefficient. Accurate distribution and dynamic balance control of the power of the hydraulic system are achieved.

Disclosed is a rupture disc assembly for use in making a temporary seal in a vessel such as a casing string. The rupture disc assembly may include a rupture disc having a side surface that has a shallow angle taper inward towards a bottom surface of the rupture disc, and a mounting apparatus to support the rupture disc so that the rupture disc forms the temporary seal. When a disc working pressure is applied to a top surface of the rupture disc, engagement / force transmission between the rupture disc and the mounting apparatus produces enough radial compression in the rupture disc due to the shallow angle taper to significantly mitigate or cancel tensile stresses thereby avoiding the rupture disc from breaking. The rupture disc may be configured to break when the rupture disc is subjected to a disc working pressure that is greater than the disc rupture pressure, thereby removing the temporary seal. An axial abutment surface feature may be provided which is configured and operable to limit downward axial movement of the rupture disc relative to said disc support mechanism and thus be operable to restrict the amount of compression said tapered wall surface of said disc support mechanism can exert on said at least a portion of said rupture disc when the top surface of the rupture disc is subjected to said hydraulic pressure within the well.

The invention relates to a tractor chassis gear shifting valve group which comprises a proportional pressure reducing valve, an electromagnetic clutch valve, a logic valve, an overload valve and a logic valve pressure regulating valve. The logic valve is arranged in a main oil way of the hydraulic system and used for controlling system pressure. The logic valve pressure regulating valve is connected with the logic valve and is used for regulating the working pressure of the logic valve; the proportional pressure reducing valve is arranged on the main oil way and used for controlling the opening and closing states of the gear shifting clutch. The electromagnetic clutch valve is arranged in the main oil way and is used for performing clutch control on the gear shifting system; the overload valve is connected to the lubrication heat dissipation oil way and used for conducting pressure protection on the lubrication heat dissipation system. The stability of pressure and flow change can be improved, and the reliability of the power shifting valve group of the tractor is improved.

The invention discloses an intelligent anti-impact control method for a mining remote water seal system. The method aims to solve the problem of water hammer impact caused by quick opening of a valve during remote quick water injection. The method comprises the steps that after a remote water injection instruction is received, a pneumatic valve is controlled to be opened; in the valve opening process, real-time pressure data in the water supply pipeline are obtained; and based on the real-time pressure data, the opening process of the pneumatic valve is intelligently adjusted so as to restrain pressure impact in the pipeline. The method is characterized in that the opening rate of the valve is nonlinearly adjusted according to the pressure safety margin ratio among the real-time pressure, the set maximum safety pressure threshold value and the target steady-state working pressure through a self-adaptive rate feed-forward control model. According to the invention, active suppression can be realized at the initial stage of water hammer impact formation, the pressure peak value is limited within a safety threshold value, and safe, rapid and self-adaptive anti-impact water injection control is realized.

The invention discloses a gas heating diffusion welding process for a titanium alloy hollow structure. The gas heating diffusion welding process comprises the steps that a skin containing an edge pressing area is formed; processing the framework; the skin and the framework are assembled; the edge pressing area of the skin is sealed in a welding mode and connected with an air pipe; putting the structure into a mold; putting the mold into a press machine, and connecting an air pipe with an air path system; the gas path system introduces gas to wash the structure; the pressure of the introduced gas is kept positive, and the introduced gas is heated by the gas path system; after the gas is heated to the working temperature, the pressure of the press machine is set to be working pressure; increasing the pressure of the introduced gas, and keeping until the welding is finished; heating of the introduced gas is stopped, the air pressure of the introduced gas and the pressure of the press machine are kept unchanged, and the introduced gas is cooled; and cooling the structure to room temperature. A gas heating mode is adopted, the equipment requirement is reduced, meanwhile, deformation in the forming process can be eliminated by adopting the skin to integrally cover the framework, and the forming quality is improved.

The utility model relates to a high-power box-type liquid-cooled brake resistor, the resistor takes away heat through cooling liquid, the resistor comprises a shell, a resistor unit and a mounting plate, the mounting plate is mounted in the shell, the resistor unit is mounted on the mounting plate, the resistor further comprises a water inlet, a water outlet, a water passing plate and a water channel, the water inlet and the water outlet are installed on the shell, the water passing plate and the water channel are installed inside the shell, the water channel is connected with the water passing plate, one end of the resistor unit is placed in the water channel, and the cooling liquid sequentially passes through the water inlet, the water passing plate, the water channel and the water outlet. According to the utility model, the water channel is arranged, the integrated flow guide (anti-backflow design) design is adopted in the shell, the cooling liquid passes through the tubular resistor from bottom to top, and the temperature controller and the pressure monitoring instrument are arranged, so that the heat dissipation function is exerted to the utmost extent; by arranging the reinforcing ribs, the pressure bearing capacity of the shell can be enhanced, and the deformation amount of the shell in the working pressure bearing process is reduced.

A steam compressor, specifically a multistage centrifugal compressor which could have an operating pressure between 0.2 bar and 12 bar and be used in industrial processes with heat pumps or for the mechanical compression of steam in general.The present invention is to improve the state of the art for steam compressors by means of an optimized architecture that minimizes the manufacturing cost, such that it makes it comparable to that of a fan, without compromising its typical performance.

The invention provides a rubber and plastic sealing element performance simulation analysis method and device for a piston rod, and belongs to the technical field of rubber and plastic sealing element performance analysis. The method provided by the invention comprises the following steps: under the maximum working pressure, carrying out simulation analysis of first-direction movement; determining a maximum deformation parameter according to an analysis result; updating the piston rod simulation model according to the maximum deformation parameter; the working pressure is unloaded to a plurality of first horizontal working pressures, simulation analysis is conducted on second direction movement under the first horizontal working pressures, and the second direction is opposite to the first direction; determining the deformation change of the rubber and plastic sealing element according to multiple simulation analysis stress-strain results in the second direction; and determining the performance change of the rubber and plastic sealing element in the reciprocating motion process of the piston according to the input pressure of the piston rod simulation model and the deformation change of the rubber and plastic sealing element. The simulation analysis method and device for the performance of the rubber and plastic sealing element of the piston rod are used for accurately evaluating the performance of the rubber and plastic reciprocating sealing element in a typical aviation hydraulic product.

The application discloses a kind of high-pressure fuel filter prediction model construction method and flow prediction method, including two prediction models, method specifically includes: using computational fluid dynamics method carries out fluid dynamics simulation calculation to high-pressure fuel filter, constructs working condition sample data set;The size of filter hole, quantity, filter working pressure, fuel viscosity and filter pressure drop are used as input variable, and filter flow is used as output variable, two new high-pressure filter general nonlinear flow prediction models are established using artificial neural network and regression prediction method respectively, the flow characteristics of different models of filter in working interval can be accurately predicted using the neural network prediction method proposed in the application at any working condition point, and the error is low;The flow of different models of filter under different conditions can be quickly and accurately obtained, the accuracy meets the engineering needs, while greatly shortening the experimental time and calculation time, saving design cost.

A hydraulic circuit and control method for achieving rapid actuation of an AGC cylinder in a rolling mill, comprising first to fifth check valves, first to fourth servo valves, first to second hydraulically controlled check valves, a solenoid reversing valve, and first to second displacement sensors. The method comprises the following steps: before the hydraulic pump station is started, the control signals of the first to fourth servo valves are set to 0, and the solenoid reversing valve is de-energized. Upon startup of the hydraulic pump station, the oil source pressure Ps increases. When Ps exceeds 5 MPa, the first servo valve and displacement sensor, along with the operating-side AGC cylinder engagement position, close the loop and control the piston of the operating-side AGC cylinder to retract to 2 mm from its highest position. The third servo valve, second displacement sensor, and transmission-side AGC cylinder operate similarly. The control signals of the second and fourth servo valves remain 0, and the solenoid reversing valve remains de-energized. After Ps reaches the system's rated operating pressure, the first and third servo valves are used to control the roll gap to a preset position. The motion displacement curves of the operating-side and transmission-side AGC cylinders are set, and the rolling mill is put into operation in the set operating mode.

A control method for controlling the operating state of a rotary press (1) for forming tablets (100), wherein the rotary press (1) is a rotary compression turret (2), and includes a die table (3) on which a plurality of dies (4) are provided along the circumferential portion of the rotary compression turret (2), a plurality of lower punches (6) and a plurality of corresponding upper punches (5) associated in pairs with each die (4), the lower punches (6) and the upper punches (5) each having a substantially cylindrical body with contact ends into which a lower compression roller (12) and an upper compression roller (11) respectively abut, and a supply station (7), the control method for controlling the operating pressure of the lower compression roller (12) and the upper compression roller (11) The system comprises a control system (20) for controlling the operation, and includes a detection step in which the supply of powder (50) to the die (4) is blocked during the detection step so that there is at least one empty die (4a), the lower punch (6) and / or upper punch (5) are moved toward the at least one empty die (4a) by the respective lower and / or upper compression means, and a pressure resistance value is measured by the detection means (14) as the value of the pressure applied by the respective lower and / or upper compression means to the corresponding lower punch (6) and / or upper punch (5) as they are moved inside the at least one empty die (4a); and an evaluation step in which the pressure resistance value is processed by the control system (20) to generate a signal relating to the punch operation state.

A method for operating a fluid system, which has a control device with a control functionality and a piezoelectric valve assembly that can be controlled by the control device. The method involves the following steps: providing a target working pressure at the working connection, measurement of the actual working pressure at the working connection by the pressure sensor, transmitting the measurement data to the control device and applying the algorithm to compare the actual working pressure with the target working pressure, activating the at least one integrator to integrate the control deviation of the control voltage (=offset voltage) after the actual working pressure is constant over a certain time period, and changing the control voltage as a function of the determined target / actual deviation taking into account the integrator operation.

A pneumatic clutch control device of a railway vehicle comprises an air supply pipeline and a two-position three-way electromagnetic valve. The air supply pipeline is communicated between a main air reservoir of the railway vehicle air compression system and an air inlet of the pneumatic clutch; two ports of the two-position three-way electromagnetic valve are communicated with the air supply pipeline, and the other port of the two-position three-way electromagnetic valve is introduced into external atmosphere; a pressure switch I is arranged on the air supply pipeline between the two-position three-way electromagnetic valve and the pneumatic clutch; the set value of the pressure switch I is greater than the minimum value of the normal working pressure of the pneumatic clutch; a non-backpressure one-way valve and a pressure stabilizing air cylinder are sequentially arranged on the air supply pipeline between the main air cylinder and the two-position three-way electromagnetic valve; the pressure stabilizing air cylinder is provided with a second pressure switch, and the set value of the second pressure switch is larger than the maximum value of normal working pressure of the pneumatic clutch. And the controller can receive signals of the first pressure switch and the second pressure switch so as to control the two-position three-way electromagnetic valve. The boosting time of the clutch air cavity is shortened, friction plate loss in the boosting process is reduced, and the pressure is more stable when the pneumatic clutch works.

The invention relates to a forklift truck (2) comprising a hydraulic system (10) and at least one hydraulically operated component (30), as well as a method for operating a hydraulic system (10) of the forklift truck (2). The hydraulic system (10) comprises a first hydraulic pump (11), a second hydraulic pump (12), and a hydraulic line system (15). The hydraulic line system (15) is designed and configured to connect the hydraulically operated component (30) selectively either exclusively to the first hydraulic pump (11), exclusively to the second hydraulic pump (12), or simultaneously to both the first hydraulic pump (11) and the second hydraulic pump (12). The first hydraulic pump (11) has a maximum efficiency at a first flow rate (102) and a first operating pressure (101). The second hydraulic pump (12) has a second maximum efficiency at a second flow rate (102) and a second operating pressure (101).The first operating pressure (101) is greater than the second operating pressure (101) and / or the first volume flow rate (102) is smaller than the second volume flow rate (102).

This invention belongs to the field of clamping fixture technology, specifically a clamping fixture for casting production and processing and its operating method. The clamping fixture includes a crossbeam, with a hydraulic cylinder fixedly connected to the top of the crossbeam and a set of hangers fixedly connected to the bottom of the crossbeam. Each set of hangers has a set of crossbars fixedly connected to it, and each set of crossbars is slidably connected to a limiting seat. A movable seat is fixedly connected to the bottom of each of the two limiting seats, and a mounting arm is fixedly connected to the bottom of each of the two movable seats. Mounting plates are fixedly connected to the bottom of opposite sides of each of the two mounting arms. Floating chucks are provided on the mounting plates, and support components are provided on each of the two mounting arms. This invention, by setting multiple sets of floating chucks on the mounting plates on both sides, can tightly fit the outer walls of both sides of the cylinder head, better clamping and fixing the cylinder head. By setting the support components, after the floating chucks clamp the cylinder head, they can support the cylinder head from below, reducing the working pressure of the floating chucks and preventing excessive clamping force from damaging the cylinder head surface.

The invention discloses a control system of an outboard engine and the outboard engine. A multi-sensor module is used for collecting the posture of a ship body, the water pressure of the outboard engine, the navigational speed and the navigational direction; the main control module is connected with the multi-sensor module and used for processing the ship body posture, the outboard engine water pressure, the navigational speed and the navigational direction collected by the multi-sensor module and generating a control instruction. The tilting angle module is connected with the main control module and used for adjusting the pitching angle of the outboard engine according to the control instruction; the vertical lifting module is connected with the main control module and used for adjusting the vertical height of the outboard engine according to the control instruction. According to the control system of the outboard engine, self-adaptive adjustment of the warping angle and the vertical height of the outboard engine can be achieved, so that the operation difficulty is reduced, and the working pressure of a driver is relieved.

The utility model relates to natural gas pipeline production and processing technical field discloses a kind of natural gas pipeline elbow hydraulic forming machine, comprising: rack, the cavity of rack is movably connected with carousel, the top of carousel is provided with lower mould, carousel is discoid;Support, support is fixedly connected in the rear wall top of rack, the bottom of electric cylinder is fixedly connected with upper mould;Automatic structure, automatic structure includes: base plate, trigger block, give way slot and collection groove, base plate is fixedly connected in the cavity of rack, trigger block is fixedly connected in the top of base plate, give way slot is opened in the bottom of carousel, collection groove is opened in the top of carousel, automatic structure can realize automatically and unload the pipeline elbow of pressing molding from device, only need worker to place elbow blank in lower mould top to carry out pressing molding and collect elbow discharged from collection pipe during working process, to make the present scheme not only reduce the working pressure of worker, still can indirectly promote production efficiency.

The utility model discloses an air clamp with stable clamping force, which comprises a base, an air cylinder is fixedly connected on the base, a slot position is arranged on the base, a wedge plate is in sliding contact in the slot position, the wedge plate abuts against the inner wall of one side of the slot position, an output shaft of the air cylinder is connected with the wedge plate, a first clamping plate is in sliding connection in the slot position, and a second clamping plate is arranged in the first clamping plate. The wedge plate and the first clamping plate extend to form wedge blocks, the wedge blocks of the wedge plate abut against the wedge blocks of the first clamping plate, the sliding path of the wedge plate is perpendicular to the sliding path of the first clamping plate, and a clamping area is formed between the first clamping plate and the inner wall of the other side of the groove position. According to the air clamp stable in clamping force, the air cylinder pushes the first clamping plate to clamp a pin through the wedge plate, and the working pressure of the air cylinder is reduced.

A lubricating system is disclosed. The lubricating system includes: at least one first to-be-lubricated component, wherein an inlet of each of the at least one first to-be-lubricated component is connected with a first lubrication oil inlet pipe, and an outlet of the each of the at least one first to-be-lubricated component is connected with a first lubrication oil outlet pipe; and at least one second to-be-lubricated component, wherein an inlet of each of the second to-be-lubricated component is connected with a second lubrication oil inlet pipe, and an outlet of the each of the at least one second to-be-lubricated component is connected with a second lubrication oil outlet pipe. An operating pressure of the each of the at least one first to-be-lubricated component is different from a working pressure of the each of the at least one second to-be-lubricated component.

To provide a three-position control device and a three-position control method capable of rapidly and accurately displacing a control object to an intermediate position, and capable of stably maintaining the displaced control object in a stop condition at an intermediate position.SOLUTION: A three-position control device includes a cylinder device, a fluid controller, and a displacement regulating device. The cylinder device displaces a piston to each of a retreating position, an intermediate position, and an advancing position. The cylinder device includes a first fluid chamber for retreating, and a second fluid chamber for advancing. The fluid controller switches the advancing and retreating position of the piston. A second working pressure at displacing from the intermediate position to the advancing position is set to be larger than a first working pressure at displacing from the retreating position to the intermediate position. The displacement regulating device includes a load receiver and energizing means. Energizing force of the energizing means is set to be larger than thrust by the first working pressure and smaller than thrust by the second working pressure.SELECTED DRAWING: Figure 9

The utility model relates to the technical field of cutting devices, in particular to a die-casting aluminum stub bar cutting machine which mainly comprises a cutting device body, an air cylinder is arranged on the cutting device body, a pressing plate is arranged at the arrangement end of the air cylinder, a product and a replacement assembly are arranged on the cutting device body, and the replacement assembly is arranged at the output end of the air cylinder. The replacement assembly comprises a mounting plate arranged at the output end of the air cylinder, a limiting block is arranged on the mounting plate, a through groove is formed in the pressing plate, and the replacement assembly is used for replacing the pressing plate; the dustproof assembly is arranged on the mounting plate, the dustproof assembly comprises a clamping plate arranged on the mounting plate, a rubber plate is arranged on the mounting plate, a convex block is arranged on the rubber plate, and the dustproof assembly is used for preventing dust from entering. According to the die-casting aluminum stub bar cutting machine, the mounting plate is aligned with the containing groove to be placed, and the two-way lead screw is controlled to rotate, so that two sets of limiting blocks can be driven to slide into the through groove, rapid replacement of the pressing plate can be achieved, the working pressure of workers can be relieved, and the replacement difficulty is lowered; and therefore, the device can quickly cut products with different specifications.

The utility model discloses a normalizing furnace for tower crane standard connecting piece production, which relates to the technical field of tower crane standard connecting piece production, and comprises a normalizing furnace assembly, the normalizing furnace assembly is movably connected with a carrier mechanism, and the carrier mechanism is in transmission connection with a driving assembly; a hoisting mechanism is arranged above the normalizing furnace assembly, a cooling assembly is arranged on the inner side of the hoisting mechanism, and a plurality of fans are fixedly connected to the cooling assembly; the third motor drives the second lead screw to rotate, the second lead screw drives the carrier body to move in the direction of the furnace box in the rotating process, the multiple rollers at the bottom of the carrier body can make the carrier body move more smoothly, the working pressure of the second lead screw is reduced, and the inner groove can limit the moving direction of the rollers; the carrier body is prevented from deviating during movement; the second motor drives the first lead screw to rotate, the first lead screw drives the gate to move downwards till the gate is completely attached to the furnace box, a closed space is formed in the furnace box, and the gate can prevent high temperature in the furnace box from being dissipated to the outside.

The utility model discloses a hydraulic element pressure adjusting tool, which relates to the technical field of hydraulic element adjustment and comprises a bottom plate, a first long plate is fixedly mounted at the left end of the outer top surface of the bottom plate, a second long plate is arranged at the right end of the outer top surface of the bottom plate, and a first support plate and a second support plate are fixedly mounted on the outer top surfaces of the first long plate and the second long plate respectively. A reciprocating assembly used for driving the second long plate to move relatively along the outer top face of the bottom plate is arranged on the outer wall of the right side of the first long plate, a bearing assembly used for bearing a test workpiece is arranged on the outer top face of the second long plate, and a pressure sensor is fixedly installed in the center of the outer wall of the right side of the first supporting plate. According to the utility model, through the arrangement of the first bearing block and the second bearing block, the second supporting plate can fix the test workpiece on the second long plate, and the working pressure of the test workpiece is detected under the cooperation of the pressure sensor, so that the test workpiece can be stably tested without generating potential safety hazards after a piston is replaced and the test workpiece is detected.