66results about How to "Improve shock absorption efficiency" patented technology

The invention discloses a damping base for a large mechanical equipment distribution box, and relates to the technical field of damping equipment. The damping base for the large mechanical equipment distribution box comprises a box body, a threaded rod is rotationally arranged in an inner cavity of the box body, a first fixed block is fixedly installed at the middle portion of the surface of the threaded rod, a first sliding block is arranged on the surface of the threaded rod and is located on the side, far away from the middle portion of the surface of the threaded rod, of the first fixed block in a sliding manner, a second fixed block is fixedly installed on the surface of the threaded rod and is located on the side, far away from the middle portion of the surface of the threaded rod, of the first sliding block, and a nut is in threaded connection to the surface of the threaded rod and is located on the side, far away from the middle portion of the surface of the threaded rod, of the second fixed block; damping in different manners is achieved through three springs, and therefore the damping effect of the device is better, damping of mechanical devices is facilitated, damping of the damping device is more stable and lasting, the damping efficiency is improved, and the service life of distribution box elements is guaranteed.

The invention discloses an enlarged cross-shaped steel SRC column with multistage composite dampers. The enlarged cross-shaped steel SRC column comprises an enlarged cross-shaped steel SRC column bodyand a U-shaped base, the middle of the bottom face of the enlarged cross-shaped steel SRC column body is fixedly connected with the center of the inner bottom surface of the base, and the two sides of the bottom face of the enlarged cross-shaped steel SRC column body are connected with the inner bottom face of the base through two rubber sliding pads; and the two sets of multistage composite dampers are connected with the positions between the column foot side walls, corresponding to the two rubber sliding pads, on the two sides of a column foot and the inner walls on the two sides of the base correspondingly, and the two sets of multistage composite dampers are symmetrically arranged with respect to the line of centers of the upper bottom face and the lower bottom face of the enlarged cross-shaped steel SRC column body. According to the enlarged cross-shaped steel SRC column with the multistage composite dampers, the outer sides of the column bottom face and the base are separated through the rubber sliding pads to form a half swing column, the ground vibration effects are separated from the column to reduce the ground vibration acceleration speed input into the column, damage tothe column is reduced, the dampers with two level energy dissipation devices are arranged at the column foot, and the higher vibration damping efficiency can be achieved.

The invention relates to an energy dissipation supporting system capable of magnifying displacement of a damper. The energy dissipation supporting system comprises a steel support, a supporting pivot,and a swinging arm; the steel support and the swinging arm are connected into a whole through the supporting pivot, the swinging arm is centered on the supporting pivot and can swing in the plane where the steel support is located, one end of the swinging arm is connected with a frame beam, and the other end of the swinging arm is connected with the damper; the damper is placed horizontally, andthe other end of the damper is firmly connected with the bottom end of the steel support. The two ends of the swinging arm are confined to move only on the plane of the steel support, floor displacement is first transmitted to one end of the swinging arm which is connected to frame beamto make the frame beam to generate horizontal movement around the supporting pivot, thus the other end of the swinging arm is driven to also generate horizontal movement around the supporting pivot, by using the length difference between the two ends of the swinging arm and the supporting pivot, displacement atthe other end of the swinging arm is magnified, and meanwhile, displacement of the damper connected to the swinging arm is magnified. According to the energy dissipation supporting system capable of magnifying displacement of the damper, the use range of the damper is greatly expanded, and supporting and arrangement are very flexible.

The invention provides a lead alloy shearing-type damper used for support column-type electric equipment. The damper comprises a central shaft, a barrel body and a lead alloy component, wherein the central shaft is slidably sleeved in the barrel body; a first groove is formed in the outer wall of the central shaft; a second groove is formed in the inner wall of the barrel body; the first groove corresponds to the second groove in position, and a cavity is defined by the first groove and the second groove; the lead alloy component is embedded in the cavity and is matched with the cavity in shape; the first end of the central shaft is placed out of the barrel body, and is used for being connected with the electric equipment; and the barrel body is used for being connected with the base of the electric equipment. In the lead alloy shearing-type damper, the first groove is formed in the outer wall of the central shaft of the damper; the second groove which corresponds to the first groove in position is formed in the inner wall of the barrel body; the lead-aluminum alloy component is embedded in the cavity formed by the second groove and the first groove; and when the central shaft and the barrel body are diastrophic, seismic energy can be effectively absorbed after the lead-aluminum alloy component is shorn.

The invention relates to a generator set shock absorption and noise reduction method based on noise source recognition. The method comprises the steps that a preset noise source is collected, a presetmatrix is established, and a noise reduction plan is preset; a noise detection module is arranged, and a noise monitor is connected with the corresponding position of the generator set; operating thegenerator set, detecting noise and establishing a detection matrix; comparing the detection matrix with a preset matrix; and selecting a corresponding noise reduction plan according to the detectionresult. According to the invention, different types of standard noise sources are pre-recorded; taking the noise source as a judgment reference; according to the method, the preset matrix is set to store the specified parameters in the noise into the sound source library, the types of the detected noise can be accurately judged by sequentially comparing the detected noise with the preset noise, the specific noise reduction method is used in a targeted mode according to the types of the noise, and the shock absorption efficiency of the method on the generator set can be effectively improved.

The invention provides a mechanical equipment damping device which comprises an upper mounting plate, a lower mounting plate, an upper damping mechanism, a middle damping mechanism and a lower damping mechanism, wherein the upper damping mechanism comprises a first rubber column and a first spring; the middle part of the first rubber column is provided with a first through hole for containing the first spring; the middle damping mechanism comprises a first damping block and a second damping block; a staggered superposition structure is arranged between the first damping block and the second damping block; the lower damping mechanism comprises a second rubber column and a second spring; the middle part of the second rubber column is provided with a second through hole for containing the second spring; the upper mounting plate and the first damping block are respectively provided with a first spring mounting part; the lower mounting plate and the second damping block are respectively provided with a second spring mounting part; and the upper mounting plate and the lower mounting plate are respectively provided with a connecting hole. The mechanical equipment damping device is simple in structure and convenient for mounting, and can enhance the damping efficiency and increase the compression resistance; and the mechanical equipment damping device can implement multistage damping on mechanical equipment.

The invention belongs to the technical field of anti-seismic safety and particularly relates to a multidimensional composite tensile-bearing-type anti-seismic joint device. The multidimensional composite tensile-bearing-type anti-seismic joint device is constituted by a special-shaped steel base, an anchoring component, a spherical cage universal coupling, damping and energy-consumption tensile-bearing rods, a bolt, an aluminum alloy cover plate, a rubber damping pad and rubber strips. The anchoring component and a concrete beam are poured together, so that the special-shaped steel base and the concrete beam are connected into a whole; one end of the aluminum alloy cover plate is connected with the special-shaped steel base through screws, and gaps between the aluminum alloy cover plate and the special-shaped steel base are filled with the rubber strips. The special-shaped steel base and a net-shaped composite damping and energy-consumption unit are connected through the spherical cageuniversal coupling, and the composite damping and energy-consumption unit is constituted by a large quadrilateral structure constituted by the damping and energy-consumption tensile-bearing rods, andthe rubber damping pad arranged in a quadrangle in a filled mode. Multidimensional change of anti-seismic joint deformation can be achieved in the vibrating direction, the material property is sufficiently utilized, the anti-seismic and damping efficiency is improved, and the good composite damping effect is achieved.

The invention discloses a novel drive motor for an electric vehicle, and belongs to the technical field of electric vehicles. The novel drive motor for the electric vehicle comprises a protective caseand a motor body. One end of a piston rod away from a piston cylinder penetrates through a baffle plate to be connected with a damping clamp plate. A heat exchange jacket is connected on the outer wall of the motor body. A stirring component is connected on the outer wall, which is arranged in the heat exchange jacket, of a first drive shaft. A heat dissipation component is connected on one end,which is arranged in the protective case, of the first drive shaft. When the motor body generates heat, the first drive shaft drives the stirring component to stir the coolant inside the heat exchangejacket, the first drive shaft also drives the heat dissipation component connected with the first drive shaft to work to dissipate the heat from the heat exchange jacket and the motor body. When themotor body sloshes, the damping clamp plate gives it a buffering force so that the piston cylinder continuously draws out and discharges the coolant inside the heat exchange jacket to speed up the heat exchange of the coolant so that the cooling and damping efficiency of the motor body can be improved.

The invention discloses a coloured spun yarn production equipment base with a shock absorption function. The coloured spun yarn production equipment base with the shock absorption function comprises a base main body and struts, wherein a first cushion block is installed above the base main body, and a buffer box is installed below the base main body; a longitudinal limit block is arranged on the first cushion block, and a transversal limit block is installed at the outer side of the longitudinal limit block; first springs are connected to the inner wall of the buffer box, and second springs are fixed to the bottom surface of the buffer box; a support box is installed at the upper ends of the second springs, and support columns are installed in the support box; and third springs are connected below the support columns, and a bottom plate is fixed to the bottom ends of the third springs. The coloured spun yarn production equipment base with the shock absorption function is simple in structure, and convenient and fast to operate; the springs are arranged in both transversal direction and longitudinal direction, and four first springs are arranged, uniformly distributed on the inner wall of the buffer box, and capable of carrying out great buffer on transversal shock.

The invention discloses a damping cushion mechanism used for an elevator, and relates to the technical field of elevators. A hollowed-out groove is formed in the middle of a base. Two damping plate springs are mounted at the upper end of the base through fixing bolts. The upper ends of the two damping plate springs are connected with a first damping device. The upper end of the first damping device is connected with two damping connectors. A second damping device is mounted at the upper ends of the two damping connectors. A damper is arranged between the two damping plate springs. The two ends of the damper are connected with the upper surface of the base and the bottom of the first damping device correspondingly. By adoption of the damping cushion mechanism used for the elevator, the damping efficiency is improved, the service life is prolonged, operation is easy and convenient, use is convenient, and time can be saved.

The invention discloses a lathe tool damping device, and belongs to the technical field of mechanical equipment. The lathe tool damping device comprises a tool bar and a tool bar mounting seat; one end of the tool bar mounting seat is provided with a mounting groove for mounting the tool bar, and an opening of the mounting groove is provided with a fixing part for fixing the tool bar; the tail part of the tool bar is fixed in the mounting groove, a tool bar extension section is fixedly arranged at the rear end of the tool bar, a movable gap is formed between the tool bar extension section and the inner wall of the mounting groove, and the tool bar extension section is connected with a swing damping device; and the swing damping device comprises a swing rod, a connecting rod, an n-shaped supporting frame, a friction roller and an arc-shaped damping face. According to the device, the influence of vibration of a lathe on the tool bar can be reduced, vibration of the tool bar can be damped at the same time, the damping effect is better, and thus the influence of vibration on processing of the tool bar is reduced, and the processing precision can be effectively guaranteed.

The invention discloses a damper. The damper comprises a center shaft, a cylinder body and a lead element, wherein the center shaft is rotatably sleeved in the cylinder body, moreover, a first groove is arranged at the outer wall of center shaft, a second groove is arranged at the inner wall of the cylinder body, the first groove is opposite to the position of the second groove and the first groove and the second groove are surrounded into a cavity; the first groove and the second groove are both in a square shape; the lead element is arranged in the cavity in an embedded mode and matched with the shape of the cavity; the first end of the center shaft is located outside the cylinder body and used for being connected with an electrical equipment; the cylinder body is used for being connected with an electrical equipment bracket. According to the damper, by mutual matching between the first groove and the second groove which are both in a square shape, stress area of the lead element is increased, when the center shaft and the cylinder body moves mutually crisscross, shearing force of the lead element is increased, so that under the condition of small area of the lead element, the yield force is increased, the distribution area of the stress flow is also increased, more earthquake dynamic energy is able to be absorbed continually, and the damping efficiency of the damper is improved.

The invention discloses a damping machine frame of a microcomputer magnetic-actuation button attaching machine. The damping machine frame of the microcomputer magnetic-actuation button attaching machine comprises a base. The top of the base is provided with two symmetrical connecting grooves. A stress plate is installed above the base. The bottom of the stress plate is fixedly connected with two symmetrical support columns. The bottom ends of the two support columns are in inserted connection with the inner surfaces of the connecting grooves through a buffering piston. The bottom of the buffering piston is fixedly connected on the inner surfaces at the bottoms of the connecting grooves through a first spring. The top, through a connecting rod, of the base is fixedly connected with a bearing plate positioned between two support columns. The damping machine frame of the microcomputer magnetic-actuation button attaching machine is capable of, through installing a sliding chute and a connecting plate, performing a function of sliding unloading force on the inner surface of the sliding chute while a force unloading plate is extruded by the stress plate, through the sliding unloading force, avoiding a force unloading structure from being damaged by an impact force generated by vibration, and through the sliding unloading force, achieving an effect of guaranteeing a damping effect aswell as protecting a buffering structure in the greatest degree, thereby achieving an effect of long-term use conveniently.

The invention discloses a frictional damping shock absorption device for electrical equipment. The electrical equipment is pillar type electrical equipment, the device is located between the electrical equipment and an equipment support, and the device comprises a cylinder, a transmission shaft arranged coaxially with the cylinder, upper and lower frictional assemblies arranged symmetrically and coaxially, and a coaxial connecting rod located on one side of the inner wall of the cylinder, wherein the upper and lower frictional assemblies are composed of an inner ring and an outer ring with conical surfaces attached. According to the shock absorption device, the damping performance of the damping device is effectively improved through the two modes of friction and damping, and the service life of the damping device is greatly prolonged.

The invention discloses an aerial cable shock absorber with insulation performance. The aerial cable shock absorber comprises a base, wherein the base is fixedly connected with an electric pole for connecting cables; the base is connected with a shock absorber through a connecting rod; the shock absorber comprises a fixed plate, first springs connected onto the fixed plate and plastic rings connected onto the first springs; one side of the fixed plate is connected with a supporting plate parallel to the fixed plate; the supporting plate is connected with the connecting rod; one end of the connecting rod is articulated with the base, and the other end of the connecting rod is articulated with the supporting plate; two sides of the fixed plate are connected with the first springs respectively; each of the first springs is provided with the corresponding plastic ring respectively; the first springs positioned on the same side of the fixed plate are connected with the cables through the corresponding plastic rings; and the plastic rings are connected onto the cables in a sleeving manner. The two cables are connected together through the fixed plate and the first springs, the two cablesplay a role of interaction under the effect of the first springs, and simultaneously, the effect of shock absorption is achieved.

The invention discloses a damping base for a large mechanical equipment distribution box, and relates to the technical field of damping equipment. The damping base for the large mechanical equipment distribution box comprises a box body, a threaded rod is rotationally arranged in an inner cavity of the box body, a first fixed block is fixedly installed at the middle portion of the surface of the threaded rod, a first sliding block is arranged on the surface of the threaded rod and is located on the side, far away from the middle portion of the surface of the threaded rod, of the first fixed block in a sliding manner, a second fixed block is fixedly installed on the surface of the threaded rod and is located on the side, far away from the middle portion of the surface of the threaded rod, of the first sliding block, and a nut is in threaded connection to the surface of the threaded rod and is located on the side, far away from the middle portion of the surface of the threaded rod, of the second fixed block; damping in different manners is achieved through three springs, and therefore the damping effect of the device is better, damping of mechanical devices is facilitated, damping of the damping device is more stable and lasting, the damping efficiency is improved, and the service life of distribution box elements is guaranteed.

The invention discloses a damping device used for forging and belongs to the technical field of forging and pressing equipment. According to the provided damping device used for forging, different damping structures are adopted, and normal use of the damping device is ensured. The damping device comprises a groove excavated in the ground. A concrete layer is arranged on the periphery and the bottom surface of the groove. A hard rubber pad, a lower supporting column and an upper supporting column are sequentially arranged in the groove from bottom to top. An enclosing wall is arranged on the peripheries of the outer sides of the upper supporting column and the lower supporting column. A gravel layer is filled between the outer layer of the enclosing wall and the side wall of the groove. The multiple sets of damping structures are arranged between the upper supporting column and the lower supporting column. Each damping structure comprises a main damping plate. The two ends of each main damping plate are connected with the upper supporting column and the lower supporting column correspondingly. An auxiliary damping plate is further connected to each main damping plate. The other end of each auxiliary damping plate is connected with the upper supporting column or the lower supporting column. The damping device used for forging is suitable for forging equipment.

The invention discloses shock absorbing shoes of women. The shoes comprise soles, the soles are provided with toe caps and soles, venting holes are formed in the toe caps, lace holes are formed in uppers, the lower sides of the soles are provided with non-slip patterns, the soles are provided with heels, airbags are mounted in the heels, the airbags are fixed inside the heels by shock absorbing columns, the rear sides of the uppers are provided with shoe hooks, the insides of the toe caps are provided with soft cushions, hollow sweat-absorbent layers are disposed on the inner sides of the uppers, insoles are disposed on the upper sides of the soles, sweat-absorbing layers are disposed on the upper layers of the insoles, and airbag layers are disposed on the heel portions of the insoles. The shoes adopt double damping of the shock absorbing columns and the airbags so that a person can feel no vibration when walking.

The invention relates to the technical field of textile machinery, and discloses a textile dryer with fast drying function, which includes a body, one side of the body is provided with a material inlet, and the other side of the body is provided with a discharge port. The inside of the feeding port is provided with woven cloth, both sides of the woven cloth are provided with rollers, the top of the body is provided with a first fan, and one side of the first fan is provided with a second fan. A fan, a third fan is arranged on one side of the second fan, an infrared heater is fixed on the inner bottom wall of the body, and the infrared heater includes a heating quartz tube, an electric heating wire and a cooling quartz tube. The textile dryer with fast drying function can effectively increase people's work efficiency, reduce the drying time of weaving cloth, and increase people's benefits. The moisture generated during drying is collected, and then passed through the desiccant Dry the gas, reduce people's cost.

The invention discloses forging equipment, belongs to the technical field of forging equipment, and aims to provide forging equipment of which two ends are stressed uniformly to prolong the service life of the forging equipment. The forging equipment comprises a forging and pressing device and a groove, wherein concrete layers are arranged on the periphery and the bottom surface of the groove; a hard rubber pad, a lower brace and an upper brace are arranged in the groove; a damping structure is arranged between the upper brace and the lower brace; a wall is arranged on the peripheries of the outer sides of the upper brace and the lower brace; the forging and pressing device is mounted on the upper brace; space between the outer layer of the wall and the side walls of the groove is filled with a sand stone layer; the forging and pressing device comprises a rack, a hydraulic cylinder and guide tracks; a pressing block is arranged between the two guide tracks; an end of a hydraulic shaft is connected with a connecting block; connecting rod mechanisms are symmetrically arranged on the left side and the right side of the hydraulic shaft; middles of three connecting rods of each connecting rod mechanism are hinged together; and ends of the three connecting rods of each connecting rod mechanism are respectively hinged to a rack, a connecting block and the pressing block. The invention is suitable for the forging equipment.

The invention relates to the technical field of damping devices, in particular to a damping device and an auxiliary trainer applying the same. A first spiral groove and a second spiral groove are formed in the fixing rod; the upper sealing telescopic column slides in the first spiral groove in a matched mode through an arranged first sliding column, and the lower sealing telescopic column slides in the second spiral groove in a matched mode through an arranged second sliding column. The upper sealing telescopic column and the lower sealing telescopic column both move downwards in a one-way mode. A damping cylinder is further installed on the outer side between the upper sealing telescopic column and the lower sealing telescopic column in a sleeving mode. A damping device is further arranged in the damping cylinder and located between the upper sealing telescopic column and the lower sealing telescopic column. The handle drives the damping cylinder to reciprocate under the action of the damping device so as to stretch the ligament; the distance between the upper sealing telescopic column and the lower sealing telescopic column is gradually reduced along with downward movement of the upper sealing telescopic column and the lower sealing telescopic column, the larger the compression degree of the damping device is, the tensile strength of the ligament is gradually improved, and the larger the force required for breaking through damping is. The ligament stretching efficiency is improved, and the safety of stretching training is further improved.

The invention discloses a sewage treater base with a shock absorption function. The sewage treater base comprises a containing box; a bottom plate matched with the containing box is stored in the containing box; the middle of the upper surface of the bottom plate is fixedly connected with a treater body; two symmetrical first sleeves are fixedly inlaid in the upper surface of the bottom plate; anda supporting plate is stored on the lower portion of the bottom plate, and two symmetrical through holes are formed in the upper surface of the supporting plate. According to the sewage treater basewith the shock absorption function, second sleeves are arranged, and first springs and third sleeves are matched for use so that the shock absorption performance of the sewage treater base can be effectively enhanced, and the stability of the sewage treater base is improved; second springs are arranged, thus the sewage treater base can conduct secondary shock absorption, and the shock absorption efficiency of the sewage treater base is improved; and sliding plates are arranged, second sliding blocks and second sliding grooves are matched for use, thus lateral deviation of connecting rods in the shock absorption process can be effectively avoided, normal using by people is effectively ensured, and market promotion is facilitated.

The invention discloses a damping base for mechanical equipment, and relates to the technical field of mechanical equipment accessories. The damping base for the mechanical equipment comprises a box,a separating plate is fixedly installed in an inner cavity of a bottom box, a first threaded rod and a second threaded rod are arranged on the two sides of the bottom of the separating plate, the first threaded rod is located on the right side of the second threaded rod, the top ends of the first threaded rod and the second threaded rod penetrate a base plate of the separating plate and extend tothe upper portion of the separating plate, the surface, located at the lower portion of the bottom box, of the first threaded rod is sequentially and fixedly provided with a first belt wheel and a second belt wheel from top to bottom, the surface, located at the lower portion of the separating plate, of the second threaded rod is fixedly provided with a third belt wheel, and a rotating motor is fixedly installed on the right side of the box. According to the damping base for the mechanical equipment, the first threaded rod and the second threaded rod rotate to drive a threaded plate to rise, aspring is pressed, and therefore elasticity of the spring on a lifting plate is changed; and by means of the design, an operator can conveniently adjust the damping amplitude of the device, and the damping efficiency is improved.

The invention discloses a damping and refrigeration integrated high-power high-frequency induction power supply device. The device comprises a damping part, a power supply cabinet and a refrigeration part, wherein the damping part comprises a longitudinal damping part; the longitudinal damping part comprises a longitudinal damping shell, a longitudinal damping buffer piece and a liquid return piece, the longitudinal damping buffer piece is arranged on the longitudinal damping shell, and the liquid return piece is arranged on the longitudinal damping buffer piece; the refrigeration part comprises a water cooling part and a circulating air cooling part; and when the longitudinal damping shell is vibrated, a cooling liquid injected into the longitudinal damping shell is extruded by the longitudinal damping buffer piece to enter the water cooling piece to cool the power supply cabinet, the cooling liquid flowing out of the water cooling piece enters the circulating air cooling piece to push circulating air in the cabinet to dissipate heat, and the cooling liquid flowing out of the circulating air cooling piece flows back into the longitudinal damping shell through the liquid return piece. The device is novel in design thought, reasonable in structural design, simple in structure, high in damping efficiency, high in refrigerating efficiency, low in manufacturing and using cost and suitable for popularization and use, and additional energy supply is not needed for damping and refrigerating.

The invention provides a spiral friction damping device for electrical equipment. The electrical equipment is pillar type electrical equipment. The damping device is positioned between the electricalequipment and an equipment support, wherein the device comprises a vertically-arranged barrel, a transmission shaft axially arranged in the barrel and a damping assembly arranged around the transmission shaft; the damping assembly comprises an elastic assembly and vertical friction assemblies positioned at the two ends of the elastic assembly; the friction assemblies comprise the upper friction assembly and the lower friction assembly which are symmetrically arranged; and the upper friction assembly and the lower friction assembly are composed of an inner ring and an outer ring which are attached through conical surfaces correspondingly. According to the spiral friction damping device, the damping performance of the damping device is effectively improved, and the service life of the damping device is greatly prolonged.

The invention discloses a damping type servo motor for a driving device, and relates to the technical field of servo motors. Sliding columns are fixedly installed on the adjacent end faces of the two supporting plates, the sliding columns are sleeved with first reset springs, first supports are fixedly installed at the tops of extrusion plates, telescopic columns are fixedly installed at the upper ends of the first supporting plates, the telescopic columns are sleeved with second reset springs, and limiting caps are fixedly installed at the upper ends of the telescopic columns. A supporting column penetrates through the interiors of a supporting base and a limiting cap together, and a connecting plate is hinged to the interiors of a second support and the first supports together, so that when a servo motor runs, bidirectional damping can be achieved, the damping efficiency is improved, the running stability of the servo motor is guaranteed, and the problem that bolts are loosened after long-time use is solved; and therefore, the practicability and convenience in use are improved, the servo motor is further protected, and the service life is prolonged.

The invention discloses a railway track with a damping shock absorption function. The railway track comprises a track body, sleepers and railway ballast. Shock absorption devices are arranged between the sleepers and the railway ballast. Each shock absorption device comprises shock absorption plates and shock absorbers, and the shock absorption plates are arranged at the bearing positions on the two sides of the sleepers. Each shock absorber is provided with a compression guide rod capable of moving vertically and a damping shock absorption chamber, the damping shock absorption chambers are arranged on the lower portions of the shock absorbers, and anti-leakage baffles are arranged at the upper ends of the damping shock absorption chambers. Columnar springs are arranged in the damping shock absorption chambers, one end of each columnar spring is welded to a base of the corresponding shock absorber, and the other ends of the columnar springs are connected to the anti-leakage baffles. Air charging devices are arranged on the two sides of the columnar springs, contact trigger switches are arranged on the air charging devices, and vent holes are formed in one side wall of each damping shock absorption chamber. According to the railway track, the shock absorbing performance can be improved.

The invention discloses an altimeter for forestry design and a working method thereof. The altimeter comprises a measuring body, wherein an angle adjusting mechanism is arranged below the measuring body, the angle adjusting mechanism comprises an angle adjusting chamber, a first support rod is fixed at the outer top end of the angle adjusting chamber, the top end of the first support rod is hingedto one side of the measuring body, a first rotating rod is arranged in the angle adjusting chamber, the two ends of the first rotating rod are rotationally connected with the inner top end and the inner bottom end in the angle adjusting chamber correspondingly, an inclined sliding way is fixed to the outer side of the first rotating rod, and a section of the inclined sliding way is trapezoidal. According to the altimeter, by arranging the angle adjusting mechanism, the measuring body can meet measurement of different angles, an application range is widened, by arranging a height adjusting mechanism, the requirement for different heights of the altimeter can be met, meanwhile, it is guaranteed that the height can still be manually adjusted when power is off or a second motor is damaged, and the use convenience is greatly improved.

The invention discloses a multilayer pressure-reduction magnetorheological damper. The multilayer pressure-reduction magnetorheological damper is characterized in that the multilayer pressure-reduction magnetorheological damper comprises a sleeve, a permanent magnet, fixing mechanisms, a regulating mechanism, a sliding sleeve, a limiting mechanism and a sealing mechanism, wherein the permanent magnet is arranged on the inner wall of the sleeve, an end cover is arranged on the lower part of the sleeve, the fixing mechanisms are arranged at the upper end and the lower end of the magnetorheological damper correspondingly, the regulating mechanism is arranged inside the sleeve, the sliding sleeve is arranged on the outer side of the sleeve, the limiting mechanism is arranged at the bottom of the sliding sleeve and connected with the sliding sleeve, and the sealing structure is arranged on the outer wall side of the upper part of the regulating mechanism. The magnetorheological damper is provided with the two fixing mechanisms so that the reverse rheological damper can be stably mounted at the designated position, a plurality of fixing frames with coils are arranged in the regulating mechanism, thus magnetic force with specified intensity can be provided after electrification, the sliding sleeve and the limiting mechanism are arranged outside the sleeve, and thus the stability of the magnetorheological damper is improved.