54results about How to "Reduce vibration intensity" patented technology

The invention relates to the technical field of hard rock stratum blasting construction, and discloses a hard rock stratum blasting excavation method and a blasting delay time calculation method. The technical problems that in the prior art, in underground engineering drilling and blasting method construction, harmful effects exist, vibration generated by blasting is difficult to control, the surrounding environment is affected, the blasting efficiency is low, the construction period is long, and the engineering cost is high are solved. The method comprises the following steps that the tunneling blasting delay time is calculated, and vertical shaft large-diameter empty hole underholing blasting is carried out; vibration reduction holes are formed in the tunnel and the vertical shaft and between the blast hole and the protection object; and tunnel driving blasting charge and vibration effect test are carried out. The technical level of hard rock stratum blasting excavation construction is improved, and fine design and construction of hard rock stratum blasting and control over harmful effects are achieved.

The invention relates to the technical field of hard rock stratum blasting construction, and discloses a hard rock stratum excavation device based on blasting vibration safety control and a using method of the hard rock stratum excavation device. The technical problems that in the prior art, harmful effects exist in underground engineering drilling and blasting method construction, and control is difficult are solved. The system comprises a blasting structure arranged in a hard rock stratum section and a monitoring module arranged on the earth surface, the blasting structure comprises blast holes and vibration reduction holes, the blast holes comprise slotting holes, auxiliary holes and peripheral holes, eccentric non-coupling vibration isolation charging structures are arranged in the slotting holes and the auxiliary holes, and the vibration reduction holes are arranged in the peripheral holes. Comprising a radial non-coupling charging structure and an axial non-coupling charging structure, an energy gathering cover interval charging structure is arranged in a peripheral hole, a vibration reduction hole is formed between a blast hole in a tunnel and a protection object, and the monitoring module comprises measuring points and vibration meters which are arranged in excavated and non-excavated areas on the two sides of a tunnel face. According to the method, the technical level of hard rock stratum blasting excavation construction is improved, and metro hard rock stratum blasting fine design, meticulous construction and control over harmful effects are achieved.

The present application provides a friction material, a brake friction pad and a preparation method thereof, and a brake friction pair. The friction material includes the following components: 20% to 60% of a first damping material, 8% to 29% of a second damping material, 10% to 20% of an adhesive, 3% to 15% of spherical alumina, 3% to 20% of zirconium silicate, 3% to 10% of stannous sulfide, and 3% to 15% of chromite; wherein the first damping material includes a chrome steel alloy, a manganese copper alloy, and a cast iron alloy; and the second damping material includes vermiculite and porous graphite. The present application uses a first damping material with an excellent attenuation coefficient and an inorganic second material with a porous structure to prepare a friction material; the first damping material can convert external mechanical vibration energy into internal friction heat energy, thereby reducing vibration intensity; the porous structure of the second damping material can absorb and reduce the transmission of brake vibration energy, thereby reducing brake vibration and noise.

The invention relates to the technical field of ceramic production. The invention discloses an artistic silicon carbide ceramic blank pressing device which comprises a base, a workbench is arranged on the base, an L-shaped frame is arranged at the side end of the workbench, a driving assembly is arranged on the L-shaped frame, a spinning machine is arranged on the driving assembly, and a rotating table is arranged below the driving assembly and detachably arranged at the top of the workbench. A stirring assembly is arranged at the side end of the rotating table, a limiting assembly is arranged at the side end of the stirring assembly, a working device is arranged at the side end of the limiting assembly, a linkage assembly is arranged at the side end of the working device, and the working device comprises a triggering assembly and a matching assembly. Through work of the limiting assembly and the working device, the mold can automatically rotate in the opposite direction during blank pressing, meanwhile, the vibration strength of the mold in the rotating process is reduced, and convenience and practicability are greatly improved.

The invention provides a friction material, a brake friction pad, a preparation method of the brake friction pad and a brake friction pair. The friction material comprises the following components: 20%-60% of a first damping material, 8%-29% of a second damping material, 10%-20% of an adhesive, 3%-15% of spherical aluminum oxide, 3%-20% of zirconium silicate, 3%-10% of stannous sulfide and 3%-15% of chromite. Wherein the first damping material comprises chromium steel alloy, manganese copper alloy and cast iron alloy; the second damping material comprises vermiculite and porous graphite. The friction material is prepared from the first damping material with an excellent attenuation coefficient and the inorganic second material with a porous structure; the first damping material can convert external mechanical vibration energy into internal friction heat energy, so that the vibration strength is reduced; the porous structure of the second damping material can absorb and reduce transmission of brake vibration energy, so that brake vibration and noise are reduced.

The utility model discloses a screening device for fish feed particles, and relates to the technical field of screening devices. The vibrating screen comprises a supporting frame and a screen connected to the inner wall of the supporting frame in a sliding mode, a discharging hopper is arranged on the supporting frame in a communicating mode, and the vibrating screen further comprises an adjusting portion arranged on the supporting frame; the vibrating part is arranged on the screen mesh; wherein the adjusting part is located above the oscillating part, the screen only slides on the supporting frame in a very small range, the adjusting part comprises a power assembly, and the power assembly is installed at the top of the supporting frame and comprises a rotary disc arranged on the supporting frame. According to the fish feed particle screening device, by arranging the adjusting part, the problems that when an existing fish feed particle screening device is used, the oscillation strength is inconvenient to adjust, the screening strength is difficult to adjust according to fish feed particles with different sizes and hardness, and particles are damaged due to too strong oscillation or screening is not thorough due to too weak oscillation are solved.

The modularized filtering device for the air compressor comprises a protective shell, a ventilation cover is fixedly installed on the upper end face of the protective shell, a limiting supporting ring is installed on the inner side of the upper end of the protective shell, a filtering net is arranged on the upper end face of the limiting supporting ring, and a first damping sealing ring is arranged on the side edge of the upper end face of the filtering net. A partition mounting frame is mounted on the inner side of the first damping sealing ring, and a plurality of bidirectional ventilation mechanisms are fixedly mounted at the upper end of the partition mounting frame. A first supporting spring is arranged in the middle of the upper end face of the partition mounting frame, an air guide frame is fixedly mounted on the outer side of the middle of the partition mounting frame, and a vibration motor is fixedly mounted on the upper end face of the air guide frame. Air entering the air compressor is filtered, the filtering pressure of a filter element of the air compressor is effectively reduced, the service life is prolonged, dust blockage is avoided, the air compressor can be self-sealed, and the sealing effect of the air compressor is kept when the air compressor is not used.

The utility model relates to condensate pump technical field discloses a variable frequency condensate pump damping device, including cylindrical sealing box, four square distribution's baffle are fixedly connected with in the cylindrical sealing box, be provided with four cuboid sealing space between four baffle, each baffle with the semicircle arc sealing space of cylindrical sealing box inner wall is provided with, the inside of four cuboid sealing space is filled with a plurality of glass beads, the baffle outer wall with the cylindrical sealing box inner wall all are provided with T -shaped sliding slot, T -shaped sliding slot inner wall slidingly connected with T -shaped sliding block, fixedly connected with semicircle arc iron sheet between similar two T -shaped sliding blocks, fill a large number of glass beads in semicircle arc sealing space and four cuboid sealing space inside, when vibration energy transmission, glass beads pass through intergranular impact, friction and the contact with the space inner wall, quickly convert vibration energy into heat energy consumption, weaken vibration intensity from the source.

The utility model relates to the technical field of compressors, in particular to a novel inner exhaust pipe assembly and a compressor. The compressor comprises a compressor body, the compressor body comprises a pump body and an air outlet pipe, and the novel inner exhaust pipe assembly is arranged between the pump body and the air outlet pipe. The novel inner exhaust pipe assembly comprises a metal cover plate; the first connecting pipe is connected with the metal cover plate; the second connecting pipe is used for being connected with an air outlet pipe; the single-spiral elastic pipe is connected with the first connecting pipe and the second connecting pipe, and the single-spiral elastic pipe comprises a plurality of circular rings which are connected end to end; the first connecting pipe, the second connecting pipe and the single-spiral elastic pipe are made of Bundy pipes and are of an integrally-formed structure so that high-pressure gas generated in the compressor can be exhausted. The inner exhaust pipe effectively solves the technical problems that in the prior art, the inner exhaust pipe is high in manufacturing cost due to the complex structural form, and the installation efficiency is low due to the cumbersome installation process.

The utility model relates to the technical field of medical treatment, and discloses a drug transdermal tester with a shock absorption function, which comprises a detector, the top of the detector is fixedly connected with a detection platform, the right side of the top of the detection platform is fixedly connected with a placing base, the bottom of the placing base is fixedly connected with a servo motor, and the servo motor is fixedly connected with a damping device. The output end of the servo motor is fixedly connected with a rotating disc, the inner wall of the rotating disc is fixedly connected with a first rotating shaft, the left end and the right end of the first rotating shaft are rotationally connected with connecting shafts, the ends, away from each other, of the two connecting shafts are rotationally connected with sliding blocks, and the bottoms of the two sliding blocks are slidably connected with the front side and the rear side of the top of the containing base correspondingly. According to the utility model, the servo motor outputs power to drive the turntable to rotate, and the connecting shaft drives the sliding block to slide back and forth on the top of the placing base in a reciprocating manner, so that the clamping plate connected with the sliding block moves synchronously, and the clamping plate can rotate around the rotating shaft II according to the profile of a sample.

The utility model discloses a buffering mechanism for preventing an oil supply pipeline from jumping disorderly, which comprises a steel pipe, the middle part of the steel pipe is provided with a buffering mechanism, and the buffering mechanism comprises a rubber corrugated pipe, two rubber pipes, two heat shrink tubes and two SAE flanges; the rubber corrugated pipe is connected between the two rubber pipes, the outer surface of the connecting position of the rubber corrugated pipe and the rubber pipes is sleeved with a heat shrink pipe, the heat shrink pipe shrinks after being heated to fixedly connect the rubber corrugated pipe and the rubber pipes, and the ends, away from the direction of the rubber corrugated pipe, of the two rubber pipes are fixedly connected with one end of the steel pipe through SAE flanges respectively. The utility model has the advantages that the rigid requirement on the original material is changed into the flexible requirement, the static and dynamic displacement, vibration and collision strength among the four oil supply pipelines are reduced, the sound generated by the collision of the oil supply pipelines is greatly reduced, the noise is reduced, the maintenance frequency of equipment is reduced, the safety coefficient of the equipment is improved, and the service life of the equipment is prolonged. And the stability of normal operation of the oil supply pipeline is improved.

The utility model relates to the field of engines, and discloses a supercharger oil return pipe, an engine and a vehicle, the oil return pipe comprises a plurality of hard pipes and hoses which are connected end to end, the hard pipes comprise middle hard pipes which are located in the middle of the oil return pipe, and the two ends of the middle hard pipes are connected to the hoses respectively. A fixing clamp used for being fixed to a fixing structure is installed on the peripheral wall of the middle-section hard pipe so that the middle-section hard pipe can be fixed to the fixing structure through the fixing clamp. The hard pipes and the hoses are alternately connected, when an engine vibrates, vibration energy is absorbed through the rebound resilience of the hoses, the vibration strength of the oil return pipe is relieved, and the oil return pipe is prevented from cracking due to vibration. Moreover, the fixing clamp capable of being fixed to a fixing structure is installed on the peripheral wall of the middle section hard pipe located in the middle, the oil return pipe is further reinforced, vibration of the oil return pipe is reduced, the situation that the oil return pipe cracks due to violent vibration is avoided, the oil return pipe does not need to be frequently replaced, and the maintenance cost is reduced.

This utility model discloses a motorhome chassis frame, belonging to the field of motorhome manufacturing technology. The utility model includes a chassis frame, spring shock absorbers, and a row of reinforcing ribs. The two ends of the row of reinforcing ribs are respectively connected to the interior of both sides of the chassis frame. Mounting plates are provided at both the front and rear ends of the chassis frame. Rectangular grooves are formed within the mounting plates, and support seats fit within these grooves. The support seats have openings within them. The two ends of the spring shock absorbers are respectively connected to the rectangular grooves and the tops of the support seats. This utility model, through the sliding cooperation structure of the slider and the groove, combined with the elastic support of the spring shock absorbers, allows the support seats to adaptively adjust in the vertical direction, effectively absorbing vibration and impact energy during vehicle operation. When the wheels encounter bumps, the support seats drive the slider to slide up and down within the groove, causing the spring shock absorbers to compress or extend, converting the impact force into elastic potential energy and releasing it slowly. This significantly reduces the vibration intensity transmitted to the frame and extends the service life of the chassis frame.

The utility model provides a kind of damping mechanism for ball mill, comprising: base, below the barrel of corresponding ball mill;Several damping components are located on the base, each the damping component includes upper and lower sequentially connected roller, upper and lower telescopic damping spring, upper and lower telescopic air bag, several air bags are respectively connected exhaust device and inflator, the roller is arranged on the barrel outer wall, several damping springs and several air bags are equipped with follow-up plate, the follow-up plate side is equipped with trigger, the base is equipped with several pressure boost trigger devices below the follow-up plate and corresponding several triggers, the pressure boost trigger device is used to trigger the inflator and corresponding air bag inflation;The damping strength of several damping components can be adjusted to increase with the increase of vibration intensity of different parts of barrel, to improve the overall damping effect of damping mechanism.

The utility model provides a connecting hose applied to vibration equipment, and relates to the technical field of pipelines. The connecting hose applied to the vibration equipment comprises a hose body, the hose body comprises an inner layer and an outer layer, the inner layer is a silica gel layer, the outer layer is a PVC layer, the hose body is provided with a limiting assembly, the limiting assembly is sleeved with a clamping assembly, one end of the clamping assembly is provided with a connector, and the other end of the clamping assembly is provided with a connecting rod. A fixing assembly is arranged at the other end of the clamping assembly, a buffering piece is arranged between the clamping assembly and the fixing assembly, and a damping piece is arranged on the clamping assembly. The hose damage frequency can be reduced, and the hose service life is prolonged.

The invention relates to the technical field of house building construction, and provides a house building carrying frame which comprises a carrying frame body, a lifting unit and a rope winding unit. The lifting unit comprises a lifting base vertically connected to the carrier body in a sliding mode and a working carrying table laterally connected to the lifting base in a sliding mode. The rope winding unit comprises a main bearing rope connected to the working carrying table, an auxiliary pull rope elastically connected to the lifting base and a driving mechanism used for driving the main bearing rope and the auxiliary pull rope to be synchronously wound / unwound. A plurality of safety supports are fixed to the carrier frame body and arranged at intervals in the height direction. A positioning component is fixed to the side face of the working platform deck and used for being matched with the safety support for abutting and limiting when the lifting unit falls accidentally. On the basis, the situation that the lifting platform directly falls off when the pull rope is broken accidentally can be reduced, and potential safety hazards are reduced.

The utility model relates to the related technical field of drill rod power tongs, in particular to a drill rod power tong safety protection device which comprises a pneumatic control assembly, an adjusting rod is arranged on one side of the pneumatic control assembly, a driving motor is arranged on the top of the pneumatic control assembly, a transferring air cylinder is fixedly connected to one side of the bottom of the pneumatic control assembly, and a brake disc is fixedly connected to one end of the pneumatic control assembly. A brake band is rotationally connected into the brake disc, a cleaning assembly is arranged on the brake disc, a conveying assembly is arranged at one end of the transferring air cylinder, a set of supporting rods are fixedly connected to the bottom of the brake disc, and a buffering assembly is fixedly connected to the bottoms of the supporting rods and used for reducing impact force generated when the drill rod power tongs are used. The cleaning assembly is used for cleaning slurry on the drill rod in the brake disc, and when the drill rod power tongs are used, vibration of the drill rod power tongs in use can be reduced through the buffer assembly, so that the stability in use is improved. Compared with the prior art, the use convenience and stability of the drill rod power tongs are improved.

The invention discloses a backlight device, a display panel and a display device. The device comprises a light source, a back plate, a reflecting film and a light guide plate, the back plate comprises a concave structure, the reflecting film is fixed to the bottom of the concave structure through first colloid, the light guide plate is connected with the back plate through second colloid, the light guide plate is arranged on the side, away from the back plate, of the reflecting film, and the light source is fixed to the side of the concave structure. The projection area of the reflecting film at the bottom is smaller than that of the light guide plate at the bottom, and the second colloid is located at the bottom except the projection area of the reflecting film. By adopting the device, the vibration intensity of the light guide plate can be reduced, the inertia acting force between the light guide plate and the reflecting film is reduced, white spots and other defects of the backlight device are avoided, and the quality of the backlight device is ensured.

The utility model discloses a material compacting device of loader, including compaction device, the bottom surface fixed connection of compaction device has the connecting disc, the bottom surface fixed mounting of connecting disc has the mounting disc, the bottom surface fixed connection of mounting disc middle has the thread bush, the inside thread connection of connecting sleeve has the compaction board, still include: the both sides surface symmetrical of thread bush is provided with the fixed assembly that penetrates, wherein, the fixed assembly that penetrates includes the connecting sleeve fixed connection with thread bush, wherein, the inside fixed assembly that penetrates is connected with the thread penetration rod, the both sides surface sleeve of thread penetration rod is equipped with rubber ring, one side surface of rubber ring is fixedly connected with connecting sleeve, through setting up the fixed assembly that penetrates, when can be more convenient to the compaction board replacement, can make to the compaction board replacement speed to a certain extent to improve to can, thereby reduce the downtime and the increase of time cost.

The utility model discloses a damping type ruggedized display, which relates to the technical field of display screens, and comprises a display screen and a fixing box, the back of the display screen is fixedly connected with a rear shell, the rear shell is shaped like a prismatic table, and the back of the rear shell is fixedly connected with a connecting block. During use, through the arrangement of the connecting block and the fixing box, the connecting block is movably inserted into the fixing box, and meanwhile through the vertical damping assembly, the first damper and the vertical sliding assembly which are connected into the fixing box, when the display screen and the connecting block are vibrated in a compartment, the connecting block can be subjected to transverse and vertical damping buffering in the fixing box; in this way, the vibration strength borne by the display screen can be effectively reduced, the display screen is prevented from being damaged due to strong vibration, the damping effect and reliability of the displayer are improved, the rear shell of the display screen is in a frustum-like shape, the structural strength of the rear shell can be enhanced, and therefore the display screen is reinforced, and the service life of the displayer is prolonged. And the reliability and the firmness of the display screen are further improved.

The utility model belongs to the technical field of dam body construction, and solves the technical problem of being convenient for workers to use and transfer. A tamping device for dam body filling construction of a pumped storage power station comprises a U-shaped bottom plate, a U-shaped frame is fixedly connected to the middle of the U-shaped bottom plate, two sliding rods are fixedly connected between the top and the bottom of the inner side of the U-shaped frame, the circumferential surface of each sliding rod is slidably sleeved with a fixing block, and round holes matched with the sliding rods are formed in the two fixing blocks; the same rammer compactor body is fixedly connected to one sides of the two fixing blocks, convex rods are fixedly connected to the two sides of the outer wall of the rammer compactor body, and a lifting mechanism is arranged at the top of the U-shaped bottom plate. According to the rammer compactor, vibration force borne by arms during operation of workers is reduced, the problems of numbness, fatigue and the like of the arms are effectively solved, meanwhile, the rammer compactor body can be easily lifted by the lifting mechanism, flexible movement is achieved by matching with the wheels, and the problems that traditional rammer compactor is heavy and difficult to transfer are solved.

The utility model discloses a damping shock absorber compression valve seat based on powder metallurgy, and relates to the technical field of machine manufacturing. The shock absorber compression valve seat comprises a lower valve seat body, an upper valve seat body is fixedly connected to the top of the lower valve seat body, a buffering assembly and a reinforcing assembly are fixedly connected into the lower valve seat body, and a damping rod slides in a damping sleeve and is matched with the synergistic effect of a damping spring, a damping ring and a damping hole; external vibration energy can be converted into mechanical energy for movement of the damping rod and energy loss for flowing of fluid, when the damping rod is impacted, elastic deformation of the damping spring can preliminarily buffer vibration, the damping ring slides in the first damping hole to enable the fluid to flow in the hole channel to generate damping force, the vibration strength is further weakened, and the damping effect is improved. The influence of external vibration on the valve seat and connected equipment is reduced, the operation stability of the equipment is improved, and the firmness degree of connection between the upper valve seat and the lower valve seat is enhanced through clamping connection of the reinforcing block and the upper valve seat positioning groove.

This utility model relates to the field of chemical reactor technology, and particularly to a chemical reactor with vibration damping and noise reduction functions. It includes a fixed ring, with three support rods fixedly connected to the outer surface of the fixed ring. Each of the three support rods has a vibration damping and noise reduction structure fixedly connected to its lower end. A chemical reactor body is fixedly sleeved inside the fixed ring. A first mounting plate and a second mounting plate are fixedly connected to the outer surface of the chemical reactor body, with the first mounting plate located below the second mounting plate. A control mechanism is fixedly mounted on the upper end of the first mounting plate. This utility model's chemical reactor with vibration damping and noise reduction functions, through the synergistic action of dampers and springs, significantly reduces the vibration intensity transmitted to the fixed block, reduces the propagation of vibration to the ground and the vibration amplitude of the chemical reactor body, effectively suppresses noise generated by vibration, ensures continuous operation of the chemical reactor body in a quiet and stable state, extends the service life of the equipment, and improves the production environment.

This invention relates to the field of storage technology and discloses a protective device for a storage server and a storage server cabinet. The device includes a fixed frame with a movable frame inside, the movable frame being detachably connected to the chassis. Both the fixed and movable frames are U-shaped structures. The device also includes an auxiliary fixing mechanism and a buffer support mechanism. The buffer support mechanism includes an inclined guide groove disposed on the side wall of the movable frame, with two symmetrically arranged inclined guide grooves on the same side of the movable frame. The side wall of the fixed frame is provided with a support shaft that slides along the inner side of the inclined guide groove. This invention, through the cooperation of the inclined guide groove and the support shaft driven by a return spring, converts vertical vibration into horizontal elastic potential energy, achieving efficient multi-dimensional buffering and significantly reducing the risk of data loss due to hard drive vibration. For chassis of different weights, it provides direct push-in or step-by-step lifting installation schemes, and the rotating connection of the support shaft makes assembly smooth and convenient.

The utility model discloses a portable concrete pump pipe floor fixing device, which relates to the technical field of pump pipe floor fixing devices, and comprises a bottom plate, the upper surface of the bottom plate is fixedly connected with a support plate, the upper surface of the support plate is fixedly connected with a top frame, the upper surface of the bottom plate is provided with a plurality of bolt holes, and the top frame is fixedly connected with the bottom plate. The inner wall of the top frame is slidably connected with two U-shaped rings, the surfaces of the U-shaped rings are in threaded connection with nuts, limiting structures are arranged on the two sides of the bottom plate, each limiting structure comprises two inner grooves, the two inner grooves are formed in the two sides of the bottom plate, expanding grooves are formed in the two sides of the top frame, and the expanding grooves are in threaded connection with the limiting structures. According to the portable concrete pump pipe floor fixing device, the effect of connecting and limiting two fixing devices is achieved, the problem that after a concrete pump pipe is used, when the fixing device needs to be transferred, the fixing device is not convenient to move is solved, and the fixing device is convenient to use. And the working intensity is improved due to the fact that personnel need to carry singly for many times.

The invention provides an intelligent active suspension system which is applied to rotating equipment or vibrating equipment, the intelligent active suspension system comprises an air spring, a monitoring module, a control module and an execution module, and the air spring is used for supporting a main body of the rotating equipment or the vibrating equipment; the monitoring module is used for monitoring operation parameters of the rotating equipment or the vibrating equipment in real time; the control module is used for processing the operation parameters monitored by the monitoring module and formulating a control strategy; and the execution module is used for adjusting the air spring to inflate or deflate according to the control strategy output by the control module. The air spring supports equipment by means of internal air pressure, durability and reliability of a suspension system are improved, fatigue damage is reduced, and a stable vibration control effect can be kept in the long-time operation process. Through the monitoring module, the control module and the execution module, the air spring can be adjusted in real time for inflation and deflation, the vibration intensity and amplitude of the equipment are effectively reduced, and the operation stability of the equipment is improved.

The utility model provides a variable-frequency supercharged hot water pump which comprises a mounting shell, air bags are symmetrically connected to the bottom of an inner cavity of the mounting shell, guide holes are formed in the bottom and the two sides of an inner cavity of a mounting plate, friction sleeves are fixedly connected into the guide holes, and transverse sliding grooves are correspondingly formed in the positions, opposite to the guide holes, of the lower surface of a buffer shell. Vertical sliding grooves are correspondingly formed in the positions, opposite to the guide holes, of the side face of the buffer shell, the vertical sliding plates and the transverse sliding plates are slidably connected into the vertical sliding grooves and the transverse sliding grooves respectively, and meanwhile buffer rods are fixedly connected to the positions, opposite to the guide holes, of the surfaces of the vertical sliding plates and the transverse sliding plates. The upper ends of the two sides of the inner cavity of the mounting shell are symmetrically connected with sealing assemblies, and the two ends of the inner cavity of the mounting frame are symmetrically connected with buffer layers. Through the cooperation of the mounting shell, the buffer rod, the friction sleeve, the buffer layer, the vertical sliding plate, the transverse sliding plate, the buffer shell and the reinforcing plate, the shock absorption and noise reduction effects of the variable-frequency booster pump body in use can be effectively enhanced.

The utility model discloses damping type building ceramic tile construction tiling equipment, including vibrating main part, vibrating pad and grip, vibrating pad is provided the bottom surface of vibrating main part, grip is connected to vibrating main part, grip includes support tube, damping subassembly and buffer structure, the front end of support tube is connected with vibrating main part, damping subassembly is sleeved on the support tube, and the buffer structure is connected with the damping subassembly. The supporting pipe and the vibration reduction assembly are sleeved with the buffering structure, the vibration reduction assembly comprises a fixing ring, an elastic connecting column and a cylindrical supporting ring, the fixing ring is located in the supporting ring and arranged on the supporting pipe in a sleeving mode, and the supporting ring is connected with the fixing ring through the elastic connecting column. Vibration generated during working can be reduced through the elastic connecting columns, the buffer structure is supported through the supporting ring of the vibration reduction assembly, when a constructor holds the buffer structure with the palm to flatten ceramic tiles, vibration borne by the palm can be greatly reduced, the situation that the palm of the constructor is numb is avoided, and construction cannot be affected.

The invention relates to the technical field of mechanical arm balance, in particular to an excavator mechanical arm self-weight balance system which comprises a balance detection module, a self-weight balance module and a self-weight balance module. The execution module is connected with the balance detection module and used for controlling balance adjustment of the excavator mechanical arm; the control module is connected with the balance detection module and the execution module and used for determining the output flow speed of hydraulic oil in a hydraulic cylinder according to the variance of the vibration strength of the excavator mechanical arm or determining the damping strength of the excavator mechanical arm according to the average delay duration of action execution of the excavator mechanical arm. And the rigidity of the excavator mechanical arm is determined according to the average delay duration of the action execution of the excavator mechanical arm and the displacement amount of the tail end of the excavator mechanical arm. The operation stability of the self-weight balance system is improved.

The utility model discloses a shield tunneling machine hob isolating ring, which relates to the technical field of isolating rings, and comprises a bearing, the arc surface of the bearing is connected with an isolating ring in a sliding manner, the inner wall of the bearing is provided with a limiting structure, the limiting structure comprises a fixed cover, the lower surface of the fixed cover is fixedly connected with the bearing, and the lower surface of the fixed cover is fixedly connected with the bearing. A threaded rod penetrates through the upper surface of the fixing cover in a threaded mode, a rotating plate is fixedly connected to the upper end of the threaded rod, a limiting plate is slidably connected to the inner wall of the fixing cover, a round hole is formed in the upper surface of the limiting plate and located below the threaded rod, a sliding hole is formed in the upper surface of the limiting plate, and a sliding rod is slidably connected to the inner wall of the sliding hole. According to the shield tunneling machine hob isolating ring, the effect of limiting the position between the bearing in the shield tunneling machine hob and the isolating ring is achieved, and the problem that the bearing is abraded due to the fact that the isolating ring is prone to shaking in the working process of the hob due to the fact that the isolating ring and the bearing are only attached to each other in a single inner and outer shrinkage face mode is solved.