15results about How to "Guaranteed support rigidity" patented technology

The invention belongs to the technical field of precision sensors, and discloses a novel silicon resonance accelerometer structure based on lever difference. The structure comprises an upper layer, a middle layer and a lower layer, the middle layer is a monocrystalline silicon micro-mechanical structure and comprises a mass block, an amplification lever structure, a double-end fixed tuning fork type resonator and the like; through a central anchor point and two amplification lever structures with opposite force transmission directions, the stress difference of the two resonators is realized, the number of supporting anchor points is reduced, the resonators are in a thermal expansion free state under a temperature change working condition, the thermal stress influence is reduced, and the temperature performance is improved; meanwhile, the area of the stress isolation frame is reduced, the difficulty of the processing technology is reduced, and the engineering application of the silicon resonance accelerometer to an ultra-precise system is promoted.

The utility model discloses a single-side double-layer electric protective door for a horizontal machining center. The single-side double-layer electric protective door comprises a supporting seat, a driving mechanism, a transmission mechanism, an outer side protective door and an inner side protective door, the outer side protective door is higher than the inner side protective door, and the outer side protective door and the inner side protective door are the same in width. The driving mechanism comprises a servo motor, a speed reducer, a large driving wheel and a small driving wheel, and the tooth number of the large driving wheel is twice that of the small driving wheel; the transmission mechanism comprises a driven wheel, a long transmission belt, a short transmission belt, an outer transmission support and an inner transmission support, the long transmission belt is connected between the large driving wheel and the driven wheel, and the short transmission belt is connected between the small driving wheel and the driven wheel. The device has the advantages that the large door opening range and the small door opening and closing occupied space can be achieved, clamping of large parts and the small machine tool occupied area are guaranteed, control is easy, cost is low, installation and adjustment are easy, and the door opening range can be controlled according to the size of the parts.

According to the transmission-type low-temperature lens thermal unloading structure provided by the invention, a flexible structure is adopted between a lens and a lens frame to be matched with low-temperature glue, and an unloading ring and Bipod laminated structure is adopted between lens groups, so that the surface shape and center deviation requirements of the whole lens assembly under low temperature and gravity are ensured. The main structure comprises a single-group lens assembly, a Bipod internal support, a support ring, an unloading ring and a Bipod external support. Each single lens assembly is composed of a lens, a lens unloading frame, an annular rubber pad and a pressing block. The single lens assembly is connected through an unloading ring and Bipod stacked structure, in order to ensure the mechanical property of the whole lens assembly, two supporting rings are added, and the overall rigidity is increased by reducing the span of Bipod; the external support of the whole lens assembly adopts a Bipod flexible support, so that the influence of the external support on the lens assembly at a low temperature is reduced.

This invention discloses a gas turbine cylinder block machining positioning device, belonging to the field of machining clamping technology. The gas turbine cylinder block includes an outer cylinder, an inner cylinder, a star-shaped support, and a support ring. Multiple height-adjustable support mechanisms include support seats and movable supports. The movable supports are provided with normal positioning parts and tangential positioning parts. The top protection mechanism includes a guide plate, a first variable diameter plate, multiple sector plates, and multiple second positioning parts that can move synchronously radially. The guide plate is provided with multiple first straight grooves and second straight grooves. The first variable diameter plate is provided with multiple first arc-shaped grooves and connected to a second drive assembly. The multiple sector plates are stacked, and the sector plates are provided with first pins that cooperate with the first straight grooves and first arc-shaped grooves and second pins that cooperate with the second straight grooves. This invention uses height-adjustable support mechanisms to position the outer cylinder, resist shear force and axial force, and ensure support rigidity. It also cooperates with the top protection mechanism to make the axes of the support ring, outer cylinder, and inner cylinder collinear.

The present invention belongs to the field of underground engineering technology, and specifically relates to an assembled foundation pit steel support structure and a construction method thereof, including a crown beam, a prefabricated steel support, a temporary locator, and a vertical construction error adjuster for adjusting the vertical construction error of the prefabricated steel support; the prefabricated steel support is composed of two end segments and a plurality of intermediate segments arranged between the two end segments, which are sequentially spliced ​​through connecting joints; the end of the end segment is cast with end concrete, and the end of the end segment and the end concrete are partially extended into the crown beam, and the end concrete and the crown beam are integrally cast and formed; one end of the vertical construction error adjuster is connected to the enclosure structure, and the other end is connected to the end segment through a temporary locator. The present invention can not only realize the rigid connection between the prefabricated steel support segments and between the prefabricated steel support and the crown beam, thereby ensuring the integrity and safety of the foundation pit, but also accurately adjust the vertical construction error through the vertical construction error adjuster to achieve precise construction.

The draught fan damping device comprises a damping unit, a first machine foot plate and a second machine foot plate, wherein the first machine foot plate and the second machine foot plate are parallel to each other. Each vibration reduction unit comprises at least three layers of coaxial vibration reduction cylinders and a plurality of connecting rings, the end faces of every two adjacent layers of vibration reduction cylinders are connected through one connecting ring, and every two adjacent connecting rings are connected with the two end faces of the same vibration reduction cylinder correspondingly. The first machine foot plate is connected with the vibration reduction cylinder on the innermost layer, is positioned outside the vibration reduction cylinder on the innermost layer and is used for mounting a fan; the second machine foot plate is connected with the vibration reduction cylinder on the outermost layer, located outside the vibration reduction cylinder on the outermost layer and used for being connected with the installation platform. The vibration of the fan is transmitted to the vibration reduction cylinder on the innermost layer from the first machine foot plate, sequentially transmitted to the vibration reduction cylinder on the outermost layer from inside to outside and then transmitted to the second machine foot plate, under the vibration reduction device with the same height, the transmission path of the vibration can be enlarged by more than three times, the good effect on energy consumption and attenuation of low-frequency vibration is achieved, and the service life of the fan is prolonged. The longitudinal space can be fully utilized, and the applicability of the device is improved.

The invention relates to the technical field of constructional engineering, in particular to a waterproof curtain and a construction method thereof.The waterproof curtain comprises a plurality of waterproof plates and a plurality of jacking parts, the waterproof plates are sequentially in butt joint to form a wall type waterproof structure, and each waterproof plate comprises at least one rigid supporting layer and at least one waterproof layer which are arranged in the thickness direction of the waterproof plate; the rigid supporting layer and the water-resisting layer are both made of degradable materials. Each jacking piece is of a wedge-shaped structure with the tip facing downwards, the upper ends of the jacking pieces are fixed to the lower ends of the water stop plates in a one-to-one correspondence mode, the water stop plates can be conveniently pressed into the ground through the jacking pieces, the supporting rigidity of the water stop plates is guaranteed through the rigid supporting layers, and the waterproofness of the water stop plates is guaranteed through the water-resisting layers; the rigid supporting layer and the water-resisting layer are both made of degradable materials and can be naturally degraded underground, the water stop plate does not need to be pulled out after the foundation pit is backfilled, and secondary disturbance caused by pulling out the water stop plate to the soil body is avoided.

The utility model relates to water treatment equipment field, a horizontal ceramic flat plate membrane component, including support foot square tube and frame square tube, frame square tube forms the frame structure of rectangle, and four support foot square tubes are located at the corner of frame structure respectively, four support foot square tubes and the inside of frame square tube intercommunication, one of support foot square tube is as water production pipeline, another of support foot square tube is as aeration pipeline, and the rest two support foot square tubes are closed, install several aeration pipes in frame structure, and the inside of frame square tube is connected with the aeration pipe and the end, install the membrane group guard board of four periphery frames on frame structure top, install several ceramic membrane sheets in the inside vertical of membrane group guard board enclosure, and every ceramic membrane sheet all is provided with water collecting port, and the water collecting port is connected with water production pipeline through frame structure, the ceramic flat plate membrane component improves the pollution resistance, easy maintenance, structural stability, and high loading density.

The utility model discloses a thin-wall part numerical control machining supporting device which comprises a base, the base is installed on a machine tool base in a sliding mode, a supporting frame is arranged on the base, a supporting sleeve is installed on the supporting frame, an installation hole b and an installation hole c are formed in the two sides of the supporting sleeve respectively, and the installation hole b and the installation hole c are both used for being connected with a supporting rod. A supporting part is arranged at the end of the supporting rod and used for supporting the wall face of the thin-wall part. The supporting device has the advantages that by adjusting the position of the base on the machine tool base, the supporting part can support thin-wall parts with different diameters, meanwhile, the supporting rod is selectively installed in the installation hole b or the installation hole c, the outer portion or the inner portion of the thin-wall part can be supported, and the supporting device is convenient to use. And the supporting sleeve can be adjusted up and down on the supporting frame, so that the thin-wall parts with different heights are supported, and the universality is improved.

The application relates to the technical field of centrifugal pumps, in particular to an energy-saving centrifugal pump with low radial force, which comprises a pump body, a pump shell is fixedly arranged on the pump body, a pump shaft is installed in the pump shell, an impeller is installed on the pump shaft, an auxiliary shaft support mechanism is also installed in the pump shell, the pump shaft is assisted and supported through the auxiliary shaft support mechanism, the auxiliary shaft support mechanism is connected with a self-locking assembly, the auxiliary shaft support mechanism drives the self-locking assembly to move, thereby realizing the locking of the auxiliary shaft support mechanism, the auxiliary shaft support mechanism is also connected with a wheel body fixing mechanism, an auxiliary shaft support frame is arranged in the pump shell, when the impeller is installed on the pump shaft, the impeller can drive the auxiliary shaft support frame to move, thereby making the auxiliary shaft support frame contact with the pump shaft from the periphery of the pump shaft, so that the pump shaft can be well assisted and supported, even if the bearing is worn, the pump shaft will not appear the phenomenon of deviation, and the support stiffness of the pump shaft is fully ensured.

A vehicle lamp is provided which ensures support rigidity of a substrate connecting portion in a front-rear direction without increasing the number of components. A vehicle lamp (1) includes a light source portion (3), a power supply member (5), a heat dissipation member (4), and a socket (7). The light source portion (3) has a light emitting element (31) and a substrate (32) connected to the light emitting element (31). The power supply member (5) supplies electric power to the light source portion (3). The heat dissipation member (4) has the light source portion (3) mounted thereto. The socket (7) is assembled on a rear side opposite to a front surface (4A) of the heat dissipation member (4) on which the light source portion (3) is mounted. In the vehicle lamp (1), the power supply member (5) is electrically connected to the substrate (32) via a substrate connecting portion (32c). The heat dissipation member (4) integrally has an expansion support portion (42) which supports the substrate connecting portion (32c) at least in a front-rear direction of the heat dissipation member (4).

This invention relates to the field of laser cutting equipment technology, and discloses an intelligent laser cutting device and method for processing seamless steel pipes. The intelligent laser cutting device for processing seamless steel pipes is characterized by comprising: a machine tool body, a laser cutting mechanism, a front-end rotating fixture, a rear-end feed fixture, a control console, and an auxiliary support system; the auxiliary support system includes: a base, a rolling contact module, an avoidance drive module, a height adjustment module, a parameter sensing module, and a control module; the base is movably mounted on the machine tool body along the pipe's moving direction; the rolling contact module is mounted on the base and includes at least two side-by-side support rollers and a spacing drive mechanism for driving the two support rollers to move synchronously towards or away from each other; the avoidance drive module is connected to the base and is used to drive the rolling contact module to switch between a support position and an avoidance position.

The present invention relates to a spindle synchronous transmission device for a double-station multi-wire cutting machine, comprising a main frame, a spindle assembly, a motor, a follower spindle assembly and a synchronous transmission mechanism; the spindle assembly and the follower spindle assembly are respectively arranged between the operation side and the transmission side of the main frame; the spindle assembly and the follower spindle assembly are connected between the sides located on the transmission side of the main frame through a synchronous transmission mechanism; the motors are respectively connected to one end of the spindle assembly located on the transmission side of the main frame and fixedly connected to the main frame. The present invention achieves synchronous operation between the spindle assemblies by adjusting the distribution of the motors and utilizing the synchronous transmission mechanism, thereby reducing the number of motors used; the original spindle assembly is improved in lightweight structure, and on the basis of ensuring the support stiffness of the follower spindle assembly, the influence of the inertia of the mass of the rotating part of the motor during the acceleration and deceleration process is reduced, so that the multi-wire cutting machine can run at a higher routing speed.

The present invention relates to the technical field of gantry processing base bottom, and in particular to a stability support base of a gantry processing center, including a support member, a mounting member and an adjusting member, the support member includes a lower support frame and a lower support box, the lower support box is horizontally arranged above the lower support frame, the top surface of the lower support box is provided with a mounting member, the mounting member includes a mounting frame, a vibration damping member and a first mounting plate, the mounting frame is horizontally arranged on the top surface of the lower support box, and a plurality of vibration damping members are symmetrically and vertically arranged on the top surface of the mounting frame, and the first mounting plate is horizontally arranged above the mounting frame. The present invention overcomes the problems that the height and horizontal position of the processing base of the existing machine tool are fixed, the processing base itself lacks an adjustable support member, cannot be adjusted according to the installation requirements of the machine tool, and cannot meet the requirements of machine tool processing, and at the same time, the base is directly fixed to the body of the machine tool, and the connection between the base and the machine tool body lacks an auxiliary connecting member, which cannot assist in ensuring the stability of the support between the base and the machine tool body.

This invention relates to the field of cementing equipment technology in oil extraction, specifically a casing centralizer for oil extraction cementing. It includes two identical centralizer mounting bases, a first centralizer mounting base and a second centralizer mounting base. Multiple inner constraint spring plates are distributed between the two bases and combined to form a cylindrical frame. Outer main spring plates are correspondingly located on the outer sides of the inner constraint spring plates. The centralizer also includes a curvature adjustment mechanism and wellbore inner diameter detection and control equipment. The curvature adjustment mechanism drives a sliding column via a hydraulic system, pulling a curvature adjustment rope to adjust the distance between the outer main spring plates and the inner constraint spring plates. This centralizer can dynamically adapt to the outer diameter according to the wellbore inner diameter, providing precise and stable adjustment. It reduces downhole movement friction and component wear, ensuring the casing remains centered, effectively improving cementing construction quality and equipment operational reliability, and adapting to complex and harsh downhole conditions.