31results about How to "Avoid unbalanced load phenomenon" patented technology

The invention relates to a conveying device suitable for collecting floating objects and water plants and a front cabin collecting system. The conveying device comprises a driving shaft, a transmission shaft, motors, chain wheels, transmission chains and conveyer belts, wherein the conveyer belts are row chain type conveyer belts; the transmission chains are hollow pin shaft chains. The conveying device further comprises supporting strips, supporting poles and steel hook sheets, wherein the supporting strips are positioned between the two chain wheels on the same side and are used for supporting the hollow pin shaft chains; the supporting poles are positioned in the row chain type conveyer belts and are used for supporting the row chain type conveyer belts; the steel hook sheets can be arranged on the row chain type conveyer belts in a detached manner; the supporting strips comprise supporting bodies which are arranged in the length direction of the hollow pin shaft chains, and convex strips arranged on the supporting bodies; rollers of the hollow pin shaft chains are erected on the convex strips. According to the conveying device and the front cabin collecting system disclosed by the invention, under the assistance of the supporting strips and the supporting poles, the stability of the conveying device is improved, the occurrence of an eccentric load phenomenon caused by too wide conveyer belts is avoided, and the service life of the conveying device is prolonged.

The invention provides a supporting roller brake device used for a coil stripping trolley, comprising a hydraulic cylinder, a fork head and a brake part; wherein, the brake part comprises an inclined wedge block and a pair of brake arms which are pivotally and rotatablely connected with the fork head; each brake arm is pivotally and rotatablely connected with a bracket which is fixed on the supporting frame of the trolley respectively; the supporting roller brake device also comprises a self-adaptive floating system which is arranged between the hydraulic cylinder and the supporting frame of the trolley and comprises a pair of connecting shafts and a pair of supporters; each connecting shaft is respectively connected with one side of the hydraulic cylinder; each supporter is respectively connected with the supporting frame of the trolley; the connecting shafts are pivotally and rotatablely connected in the holes arranged on the supporters correspondingly. According to corresponding mechanic principle, the invention reconstructs the whole assembly and local assembly of the supporting roller brake device system. The novel supporting roller brake device of the coiling stripping trolley effectively solves the offset load phenomenon of the piston rod of the hydraulic cylinder and avoids a series of equipment failure and accidents caused by the offset loads.

The invention relates to the field of optical glass milling and grinding equipment, in particular to a gantry type five-axis linkage optical glass milling and grinding machine which comprises a machine body, stand columns, a crossbeam, a rotary workbench, a machine body base and a workbench base. The first supporting column is connected with a first ram through an X-axis feeding mechanism, and the second supporting column is connected with a second ram through an X-axis feeding mechanism. A third ram is perpendicularly arranged on the crossbeam. The third ram is connected with the crossbeam through a Y-axis feeding mechanism. The Y-axis feeding mechanism is provided with a Y-direction sliding seat. The third ram is connected with the Y-direction sliding seat through a Z-axis feeding mechanism. A swinging head and an A-axis feeding mechanism for controlling the swinging head to swing are mounted on the third ram. A tool disc is mounted on the swinging head. The rotary workbench is provided with a C-axis feeding mechanism. The machine body is of a gantry type structure, the structure is simple, maintaining and debugging are convenient, and rigidity and reliability are high; one-time clamping of a workpiece can be achieved, the machine has multiple purposes, and the machining quality and production efficiency of the workpiece are improved.

The invention discloses an energy-saving and environment-friendly concrete mixing ship. The ship comprises a ship body, a concrete production system and a living building; the concrete production system comprises a stirring main building, an aggregate building, an aggregate feeding system, an aggregate batching system and a waste concrete treatment system; the stirring main building comprises a left-line stirring chamber and a right-line stirring chamber, and a left-line aggregate transition middle storage cabin and a right-line aggregate transition middle storage cabin are arranged between a dust removal deck and a weighing deck which correspond to the left-line stirring chamber and the right-line stirring chamber; a left-line stirring main machine and a right-line stirring main machine are arranged on the stirring deck corresponding to the left-line stirring chamber and the right-line stirring chamber; the aggregate building comprises a left-line aggregate chamber and a right-line aggregate chamber which are symmetrically arranged along the central axis of the ship body; the aggregate feeding system comprises a material receiving mechanism, a material conveying mechanism and a material distributing mechanism; the aggregate batching system comprises a left-line batching mechanism, a right-line batching mechanism and a transfer batching mechanism; the waste concrete treatment system comprises two flushing pipelines, a sewage chute, a sewage treatment device, a vibrating screen, a sewage tank, a filter press and a filter pressing clear water tank. The working environment can be improved, the aggregate of the left-line aggregate bin and the right-line aggregate bin can be consumed in a balanced mode, and continuous concrete production is achieved.

The invention relates to the technical field of hydraulic machine devices, in particular to a four-corner leveling device of a novel rapid hydraulic machine. The four-corner leveling device comprises an oil cylinder, a piston rod, a piston and a flange. Leveling cylinders are arranged below the piston and fixedly installed on the four corners of the lower end of a hydraulic machine body. Displacement sensors are arranged at the bottom portions of the leveling cylinders and connected with a control assembly. By the adoption of the structure, when sliding block assemblies of the hydraulic machine move downwards to be combined with a die, adjustable threaded rods on the four corners of the sliding block assemblies make contact with the four leveling cylinders, workpieces to be pressed are prevented from unbalance loading, it is guaranteed that the thickness of the pressed workpieces is uniform and the same, pressed product scrap is avoided, product quality is effectively improved, and production cost is reduced.

The invention relates to a suspension type ground friction conveying line. An auxiliary track installing support is fixedly installed on the outer side of a main track installing column, a main track is fixed on the main track installing column and suspended above plant area ground, a straightening track is fixed on the auxiliary track installing support, walking wheels are arranged in the main track, every two adjacent walking wheels are connected through a connecting rod, a straightening wheel is arranged in the straightening track, the walking wheels and the straightening wheel are installed on a workpiece support, a driving friction wheel and a driven friction wheel are installed on the main track installing column, and the connecting rod is located between the driving friction wheel and the driven friction wheel. According to the suspension type ground friction conveying line, the total installing height is reduced, the problem that paint is sprayed on a conveying line body at a paint spraying station is avoided, maintenance and safety are enhanced, and an auxiliary walking track is installed additionally simultaneously to avoid an eccentric load.

The invention discloses a hydraulic cylinder arrangement control mechanism for a shielding tunneling machine. The hydraulic cylinder arrangement control mechanism comprises a shield body, a partitionplate, hydraulic cylinders, a supporting frame and a push-and-pull device; the supporting frame is arranged inside the shield body and fixedly connected with the shield body, the partition plate is arranged in the shield body, multiple groove holes are formed in the supporting frame in the extension direction of the axis of the shield body, and formed in the supporting frame around the axis of theshield body, the hydraulic cylinders penetrate through the groove holes, one ends of the hydraulic cylinders are backed on the side face of the partition plate, and the other ends of the hydraulic cylinders are jacked on duct pieces through support boots; the hydraulic cylinders are arranged around the axis of the shield body, one end of the push-and-pull device is hinged to hydraulic cylinder bodies, the other end of the push-and-pull device is hinged to the supporting frame, and the push-and-pull device is used for rotating the hydraulic cylinders around the axis of the shield body for adjustment. By means of the hydraulic cylinder arrangement control mechanism for the shielding tunneling machine, when a shield propelling system tunnels a compound stratum, the positions of the hydrauliccylinders can be changed at the right time, layout optimization is achieved, and thus the shield tunneling efficiency is improved.

The invention relates to a multi-axle vehicle experiment bench capable of realizing dynamic load simulation and a working method thereof. The multi-axle vehicle experiment bench comprises a chassis, a data acquisition system, a whole vehicle controller and a dynamic load adjusting device, the chassis controls the movement state and posture change of the whole vehicle through the suspension system, the steering system, the braking system and the driving system; the dynamic load adjusting device is installed on the chassis and comprises an upper layer load adjusting mechanism and a lower layer load adjusting mechanism which drive balancing weights on the load adjusting mechanisms to move in the transverse direction and the longitudinal direction respectively. The data acquisition system comprises a wheel corner sensor, a vehicle speed sensor, a yaw velocity sensor, a whole vehicle transverse acceleration sensor and a whole vehicle longitudinal acceleration sensor; the whole vehicle controller controls the dynamic load adjusting device to work according to set simulation working conditions and collected whole vehicle dynamic parameters, and changes of dynamic loads between all axles and left and right wheels are adjusted in real time. The experiment bench can truly and reliably simulate the dynamic load, the engineering application range of the experiment bench is expanded, and the simulation range of the experiment bench to the load change of the whole vehicle is expanded.

The invention discloses a method for improving the mechanical property of 45Cr-3Mo-B alloy. The method is characterized by comprising the steps that the 45Cr-3Mo-B alloy is prepared from, by mass, 0.41 part of C, 0.24 part of Si, 0.67 part of Mn, 0.93 part of Cr, 0.021 part of S, 0.023 part of P and the balance Fe; steel is prepared by the raw materials through a conventional method and then processed through subcritical quenching heat treating; the technology comprises the steps that oil quenching is performed at the temperature of 750 DEG C-850 DEG C for 13 min; oil cooling is performed at the temperature of 550 DEG C-600 DEG C for 2 h; water quenching is performed at the temperature of 700 DEG C-770 DEG C for 13 min; water cooling is performed at the temperature of 560 DEG C-600 DEG C for 2 h.