9results about How to "Big work schedule" patented technology

The invention relates to a dual-mode magnetorheological damper for vibration reduction. The dual-mode magnetorheological damper comprises a large-displacement shear damping part and a small-displacement extrusion damping part. The large-displacement shear damping part comprises a first piston rod, an inner cylinder and an outer cylinder which are sleeved from inside to outside, the first piston rod is sleeved with a piston, the ends, right facing the small-displacement extrusion damping part, of the inner cylinder and the outer cylinder are provided with cover plates, the other ends of the inner cylinder and the outer cylinder are provided with upper end covers, and the end of the first piston rod penetrates out of the upper end covers. The piston is located in a space defined by the inner cylinder, the upper end cover and the cover plate and forms a gap with the inner wall of the inner cylinder. The small-displacement extrusion damping part comprises a second piston rod and an inner sleeve which are sequentially sleeved from inside to outside, the inner sleeve is sleeved with a first magnet exciting coil, a plurality of piston discs are arranged in the length direction of the second piston rod, an upper base is arranged at one end of the inner sleeve, a lower base is arranged at the other end of the inner sleeve, and a plurality of annular partition discs are arranged on the inner wall in the length direction of the inner sleeve; the piston discs and the annular partition discs are arranged in a staggered mode. According to the invention, low-frequency large-amplitude vibration and high-frequency small-amplitude vibration can be effectively damped.

The invention provides a crawler-type low-temperature coal bed gas drilling machine which comprises a crawler chassis assembly, a mast assembly arranged on the surface of the crawler chassis assembly, a power head assembly arranged on one side of the mast assembly, an inner mast arranged at one end of the mast assembly, a pulley yoke assembly arranged at one end of the inner mast, and a bracket assembly installed on one side of the bottom of the mast assembly. A clamping shackle device is installed on one side of the surface of the power head assembly, a tool crane is arranged on one side of the inner mast, a coring crane, a tool winch and a coring winch are installed on the surface of the mast assembly, an engine shield assembly is arranged on the surface of the crawler chassis assembly, and a cab assembly is installed on one side of the crawler chassis assembly. According to the crawler-type low-temperature coal bed gas drilling machine, the drilling machine meets drilling modes of various construction technologies, the main machine adopts a wheel type walking mode, and the crawler-type low-temperature coal bed gas drilling machine has the advantages of being good in maneuverability, high in operation efficiency, good in drilling quality, low in pollution and the like.

The drilling and cutting machine comprises a rack, a clamp structure, an X-direction driving module and a machining unit, the rack comprises a feeding table and a supporting frame arranged on one side of the feeding table, and the clamp structure is used for clamping materials placed on the feeding table and moves along the supporting frame under driving of the X-direction driving module; the machining unit is used for machining the materials clamped by the clamp structure and comprises an upper cross beam, a lower cross beam, a Y-direction driving module, an upper machine head and a lower machine head, and the lower machine head is arranged on the lower cross beam; the spindle set and the gang drill set are mounted on the mounting plate, and the spindle set is located on the side, away from the clamp structure, of the gang drill set. According to the main shaft machine, the main shaft set is located on the side, away from the clamp structure, of the gang drill set, so that a worker can visually observe the working state of the main shaft set which is relatively prone to damage in the working process, and when the main shaft machine needs to be overhauled or replaced, disassembly of the worker and installation of the main shaft machine after maintenance or replacement are better facilitated.

The embodiment of the invention provides a rear non-independent integral axle suspension system. The rear non-independent integral axle suspension system comprises a rear axle, a shock absorber assembly and a control arm assembly. The two ends of the rear axle are connected with hub supports, and the shock absorber assemblies are connected to the hub supports. The control arm assembly comprises a V-shaped thrust rod and two lower longitudinal arms; the two lower trailing arms are arranged in the longitudinal direction of the automobile body and connected to the two ends of the rear axle, and the two lower trailing arms are located on the inner sides of the hub supports. The V-shaped thrust rod is arranged between the two lower trailing arms, and the V-shaped vertex of the V-shaped thrust rod is in flexible connection with the middle of the rear axle. In the embodiment of the invention, the suspension system is composed of the rear axle, the shock absorber assembly and the control arm assembly which are formed by hot gas bulging, the V-shaped thrust rod is mainly formed by cutting, bending and welding a round pipe, the process is simple and few, and forming is easy. Compared with a traditional five-connecting-rod and three-connecting-rod mechanism, a Panha rod is omitted, space and material cost are saved, and meanwhile the same lateral supporting performance is guaranteed through optimization of the control arm assembly.

The present invention relates to a pneumatic vibration coffee picking machine, which belongs to the technical field of coffee machine picking equipment. It includes a shell, a pneumatic vibrator, a slider, a connecting rod, and a clamping head; the rear end of the shell is provided with a quick connector, which is connected to the pneumatic vibrator through a pipeline, and the connecting pipeline is provided with an on-off valve and a speed regulating valve in sequence; a connecting piece is hinged on the piston rod of the pneumatic vibrator, a slider is slidably installed on the front end of the shell, a connecting rod is hinged on the slider, the rear end of the connecting rod is inserted into the connecting piece, and a clamping head is provided at the front end of the connecting rod. The present invention drives the clamping head to swing up and down through the pneumatic vibrator to shake the coffee branches, thereby vibrating the coffee fruit down, effectively improving the efficiency of fruit farmers picking coffee fruit. The pneumatic vibrator has a longer working stroke and a smaller volume. Compared with the crank remote lever mechanism, it is conducive to realizing the miniaturization of the coffee picking machine. At the same time, the swing amplitude of the clamping head can be adjusted by sliding the slider, and the swing frequency can be adjusted by rotating the speed regulating valve to meet the picking of fresh coffee fruit in different maturity conditions.

The drilling and cutting machine comprises a rack and a machining unit, the rack is provided with a feeding table used for containing materials, the machining unit is used for drilling and cutting the to-be-machined materials placed on the feeding table, the machining unit comprises an upper cross beam, a lower cross beam, a Y-direction driving module, an upper machine head and a lower machine head, the upper machine head is arranged on the upper cross beam, and the Y-direction driving module is arranged on the lower cross beam. The Y-direction driving module can drive the lower machine head to move along the lower cross beam, the lower machine head comprises a main shaft set, a gang drill set and a dust suction hood, the main shaft set comprises a main shaft, the gang drill set comprises a gang drill motor and gang drills driven by the gang drill motor, and the dust suction hood is provided with a dust suction opening, a dust outlet and a dust removal channel communicating the dust suction opening with the dust outlet. When the gang drill group and the main shaft group in the lower machine head generate chippings in the machining process of drilling or slotting the materials, the dust hood can absorb the chippings generated when the gang drill group and the main shaft group work, and guarantee is provided for stable work of the drilling and cutting machine.

This utility model discloses an adjustable chandelier balancer, including a mounting base, a winding wheel movably mounted within the mounting base, a cable wound on the winding wheel, a spring winding wheel mounted on one side of the winding wheel, and a spring mounting wheel movably mounted on the mounting base corresponding to the spring winding wheel. A constant force spring is wound on the spring mounting wheel, one end of which is fixed to the spring winding wheel. A gravity braking mechanism is also installed within the mounting base. When the chandelier is adjusted, the constant force spring provides a stable basic recovery force through an S-shaped winding method, while the gravity braking mechanism provides dynamically adjustable additional braking force, which is increased when pulling down and released when rising, finding a perfect balance point that matches the weight of the chandelier, thereby achieving dynamic balance throughout the entire stroke. This utility model greatly reduces the reliance on on-site fine adjustment of the spring preload, avoids the technical problems of chandelier rebound or slippage, is simple to operate, and provides consumers with a better user experience.

The invention provides a built-in multi-direction adjustable shape correction tool suitable for an annular piece and a shape correction method, and belongs to the field of mechanical part shape correction tools. The problems that an existing built-in annular piece shape correcting tool mostly adopts the structure of a central stand column and a sleeve, the structure is complex, the stroke range of the tool is reduced due to the existence of the central stand column, the overall size of the tool is large, and operation is inconvenient are solved. Comprising a faceplate, a plurality of pairs of supporting rods and a plurality of top blocks, each pair of supporting rods are symmetrically arranged relative to the center of the faceplate, all the supporting rods are evenly distributed in the circumferential direction of the side face of the faceplate, the top end of each supporting rod is connected with one top block, the outer side face of each top block is an arc face, and a hollowed-out part is arranged in the center of the faceplate. The tool is mainly used for carrying out rapid multi-direction comprehensive correction on a large batch of annular pieces under conventional conditions.