47results about How to "Braking force is strong" patented technology

The invention discloses a tight braking device for a numeric control rotary table. The tight braking device comprises a base, an oil cylinder, an oil separator and a first annular friction plate, wherein the first annular friction plate is fixedly arranged on a rotary disk; a piston hole is formed in the base; a piston of the oil cylinder extends into the piston hole; the oil cylinder is connected with the oil separator; the first annular friction plate is positioned between the base and the oil cylinder; and a second annular friction plate is arranged between the first annular friction plate and the oil cylinder and is fixedly arranged on the base. The tight braking device has the advantages that the oil cylinder directly acts on the second annular friction plate; the second annular friction plate is fixed on the base; the base is immovable and constraints the circumferential direction of the second annular friction plate; during tight braking, the oil cylinder and the second annular friction plate are positioned in a communicated static state; and when the first annular friction plate which is fixed with the rotary disk together is simultaneously subjected to action forces of two friction surfaces, a braking force is greater and the tight braking reliability is high. Therefore, the rigidity of the numerical control rotary table is improved and the guarantee for machining workpieces with high precision by the machine tool is provided.

The invention relates to a screw pump reverse rotation preventing braking method. An upper cover (1), a centrifugal support (2), centrifugal blocks (3), brake pads (4), limiting bolts (5), a connecting bolt (6), a circular nut (7), a spring (8), PTFE pads (9) and an outer shell (10) are included. A centrifugal braking system is composed of the centrifugal support (2), the centrifugal blocks (3), the brake pads (4), the limiting bolts (5), the connecting bolt (6), the circular nut (7), the spring (8) and the PTFE pads (9). During braking, the centrifugal blocks (3) are used for driving the brake pads (4) to rub with the inner wall of the outer shell (10) for braking. The centrifugal braking system can be arranged at the outer portion of a screw pump drive head together with the outer shell(10) and the upper cover (1) and can also be integrated into the screw pump drive head, a shell of the screw pump drive head serves as a friction face, and accordingly, the work effect of the centrifugal braking system is guaranteed.

A front drive bridge of a roadlouse relates to the front bridge structure of an automobile, which is characterized in that a steering knuckle is in U-shaped structure; two U-shaped openings of two U-shaped brackets are sheathed together by the dynamic matching of pin rolls; the bottom part of the internal U-shaped bracket is fixed on the flange of a bridge shell; the bottom part of the external U-shaped bracket is fixed on the shell of an external semi-shaft; a braking mechanism is a dish braking mechanism; the U-shaped supporting seat of the dish braking mechanism is fixed on the shell of the external semi-shaft; the disk of the disk braking mechanism is fixed on the rotating hub seat of the external semi-shaft. The front drive bridge has the advantages that the U-shaped steering knuckle and the disk braking mechanism are simultaneously used in the front drive bridge of the roadlouse; when the two are matched to be used in the front bridge to steer, the braking speed is greatly quickened; braking force is also increased; the operation is flexible and the security is better. While the use of the U-shaped steering knuckle leads the mounting of a three-pin universal joint to be possible. The three-pin universal joint has the characteristics of small size, large transfer torque and constant speed drive. The front drive bridge has the advantages of flexible steering, fast braking speed, large braking force and large transfer moment to improve the comprehensive property of the roadlouse.

The invention discloses a belt type braking device for an anchor machine. The belt type braking device comprises a left braking belt and a right braking belt which are hinged together and are arranged on an anchor machine braking hub in an embracing mode. One end of the left braking belt is fixedly connected with an anchor machine frame through a pin shaft group. The other end of the left braking belt is connected with one end of the right braking belt through a second pin shaft group. The tail end of the right braking belt is fixedly connected with a crank assembly through a third pin shaft group. The crank assembly is in transmission connection with a piston rod of a braking oil cylinder. According to the device, the shortcoming that manual locking is needed in traditional belt type braking is overcome, and the safety of the anchor machine braking device is improved.

The invention discloses a vertical servo hydraulic tool rest, which comprises a base, cylindrical vertical shafts, a drive system, inner gear rings, tool stages and a braking and loosening component, wherein the inner sides of the lower ends of the tool stages are fixedly with a movable fluted disc respectively, while upper ends are fixedly connected with the inner gear rings; fixed fluted discs are arranged on the upper end face of the base between the movable fluted discs and the vertical shafts; meshing teeth are arranged on the upper end faces of the movable fluted discs and the fixed fluted discs; the inner gear rings and the tool stages are driven by the drive system to rotate; the drive system comprises a speed reducer, a servo motor, a drive gear and a transmission gear; the speed reducer and the servo motor are connected with each other and are arranged below a bearing block; the drive gear is arranged above the bearing block, and is connected with an output shaft of the speed reducer; and the transmission gear is arranged on the bearing block, is externally meshed with the drive gear and is internally meshed with the inner gear rings. The vertical servo hydraulic tool rest has the characteristics of small moment of inertia, stable rotation, large output torque and relatively larger braking torque.

The invention relates to an electronic parking braking system with double-piston calipers. The electronic parking braking system comprises an EPB actuator and the double-piston calipers, and the EPB actuator is used for driving the double-piston calipers. The system further comprises an electronic control unit used for controlling the current direction and intensity of a motor in the EPB actuator. The electronic parking braking system which is of the structure and is provided with the double-piston calipers is adopted, as the calipers used are double-piston calipers and are different from single-piston calipers used in the current market, the double-piston calipers can provide larger brake force in the same hydraulic system, and therefore the double-piston calipers are used in medium and large vehicles and other vehicles high in requirement for brake performance more frequently. By means of the provided EPB actuator and the double-piston caliper parking mode, the application field and range of novel EPB are enlarged.

The invention relates to a novel line wheel structure. The structure comprises a line wheel supported on a main shaft through a front bearing and a rear bearing, a brake pad assembly located in an inner cavity of the line wheel and an adjusting button assembly and is characterized in that a partition board for dividing the inner cavity into a front cavity and a rear cavity is arranged in the innercavity of the line wheel, a shaft hole allowing the main shaft to penetrate through is formed in the middle of the partition board, a front shaft sleeve and a rear shaft sleeve axially extend out ofthe front and rear cavity sides of the partition board along the shaft hole, and the front bearing and the rear bearing are mounted in the front and rear shaft sleeves; besides, the brake pad assemblycomprises a front brake pad assembly mounted in the front cavity and a rear brake pad assembly mounted in the rear cavity, and the adjusting button assembly is abutted against the front brake pad assembly. With the adoption of the structure, the front brake pad assembly is mounted in the front cavity, the rear cavity extends to the non-winding area of the line wheel, so that more rear brake pad assemblies can be mounted in the rear cavity, and higher brake force can be obtained. Meanwhile, the front and rear bearings are mounted in the front and rear shaft sleeves, the coaxiality of the two bearings can be ensured, and the brake stability of the line wheel is better.

The invention provides a hub motor integrated system which is arranged in a dual wheel. The system comprises a hub motor, a speed reducer and a brake. The brake is a drum brake and comprises a brake drum connecting piece, a brake shoe, brake wheel cylinders, a brake drum and a brake bottom board. The specially-manufactured drum brake is adopted for substituting an existing disc brake of a heavy load vehicle, brake force is large, the drum brake is more suitable for braking a rear wheel of the heavy load vehicle, and the application range of the hub motor technology is enlarged; and for the heavy load vehicle, the vehicle traveling speed is low, the required brake force is large, under the condition, the durability of the drum brake is higher than that of the disc brake, the brake stabilityof the heavy load vehicle can be improved, and cost is saved as well.

The invention discloses a special sand tire and wear resistance detection device thereof. The special sand tire comprises a tire body, wherein a tire tread is formed on an outer ring of the tire body,a tire shoulder is formed on an edge of the tire tread, a plurality of pattern blocks are arranged on the tire tread and the tire shoulder, and the pattern blocks are symmetrically arranged on the left side and the right side of the circumferential axis of the tire tread in a staggered mode; each pattern block comprises a tread pattern block group arranged on the tread and distributed along the circumferential direction of the tire, and a tire shoulder pattern block group arranged on the tire shoulder and distributed along the circumferential direction of the tire, and the tail end of the tire shoulder pattern block group extends towards the tire side to form an under-shoulder pattern block. According to the special sand tire, a computer model is established to simulate the size and shapeof a grounding mark, the grounding pressure and distribution condition, and the contact condition of a pattern and a soft pavement of a tire in soft lands such as deserts, sand lands, beaches and thelike so as to design a pattern groove with a U-shaped structure and an undirected blocky pattern block; the passing rate of the special sand tire on a soft road surface is increased, the functions ofwater drainage, mud discharge, sand discharge and the like are improved, stability and the quick turning performance of a vehicle are improved, and meanwhile the control performance of the tire is improved.

The invention relates to a wireless braking system. The wireless braking system comprises a braking control module and a braking realizing module which are connected with each other through a wirelessmode; the braking control module comprises a pedal plate and a first control module; an angle sensor used for detecting a steering angle and an angular acceleration of the pedal plate is arranged onthe pedal plate; the angle sensor is connected with the first control module; the first control module comprises a first micro-control unit and a first wireless communication module connected with thefirst micro-control unit; the braking realizing module comprises a second control module, a motor and a mechanical brake unit which are connected with each other in sequence; the second control module comprises a second micro-control unit and a second wireless communication module connected with the second micro-control unit; and the first wireless communication module is connected with the second wireless communication module. Compared with the prior art, the wireless braking system has the advantages that the oil leaking phenomenon of an oil braking system is avoided and the wiring harnessarranging space of a vehicle compartment is also saved by using an electronic control and mechanical structure combined method.

The invention relates to a braking mechanism, in particular to a cam-type pedal lock braking mechanism. According to the adopted technical scheme, the cam-type pedal lock braking mechanism comprises a pedal part, a braking connecting line and a braking part, and is characterized in that the pedal part comprises a support plate, a pedal plate, a braking line limiting block, a limiting brake rod, a cam rod and a travel switch; the braking part comprises a brake runner, a brake cable, a brake block and a brake pad. The cam-type pedal lock braking mechanism has the advantages that the friction force between the brake pad and a moving part is used for braking, and rotation or rotation trend is stopped by means of mutual friction between a non-rotating element and a rotating element. The cam-type pedal lock braking mechanism has the characteristics of flexibility in braking, simple structure, convenience in adjustment, low cost, high suitability and the like, and a belt axle in a headstock of a machine tool can be used for braking. The cam-type pedal lock braking mechanism has the advantages of compact structure, flexibility in action, convenience in adjustment, great braking force, high braking speed, adjustable braking time, automatic compensation after wear of the brake pad, and the like.

The invention provides a strength enhancing structure of a double-face basin angle gear. The strength enhancing structure of the double-face basin angle gear comprises a power input shaft, a reinforcing shaft, a first bevel gear, a second bevel gear, a driving gear, a driven gear and the double-face basin angle gear. The first bevel gear is arranged at the front end of the power input shaft, the second bevel gear is arranged at the front end of the reinforcing shaft, the driving gear is arranged on the power input shaft, the driven gear is arranged on the reinforcing shaft, the driving gear isengaged with the driven gear, basin angle teeth are arranged on the two faces of the double-face basin angle gear separately and oppositely arranged, the double-face basin angle gear is arranged between the first bevel gear and the second bevel gear, the first bevel gear is engaged with the basin angle tooth on one face of the double-face basin angle gear, and the second bevel gear is engaged with the basin angle tooth on the other face of the double-face basin angle gear. The technical problems that a power input shaft of a differential mechanism of a vehicle is seriously abraded, tooth jumping of a driving bevel gear is likely to happen under the heavy-load condition, and the service life of the differential mechanism is affected can be solved.

The invention discloses a pneumatic pipeline internal traveling device capable of braking reliably, which comprises a frame, a shoe brake, driving wheels and traveling wheels. The frame is provided with two traveling wheels, the shoe brake, the driving wheels and two traveling wheels arranged sequentially in the direction of a central shaft of the frame, wherein seen from the axial direction, the traveling wheels are located at the lower semicircle of the frame, and the shoe brake and the driving wheels are located at the upper semicircle of the frame; on the radial distribution, the two traveling wheels are symmetric around an axis Y and mounted on the frame; the driving wheels are connected with a driving transmission mechanism; the shoe brake is connected with a brake transmission mechanism; a central shaft seat is fixedly connected with the frame central shaft; the frame central shaft is glidingly sleeved with an upper sliding sleeve and a lower sliding sleeve; the lower end of the lower sliding sleeve is fixedly connected with a telescopic rod of a driving cylinder; and the upper end of the upper sliding sleeve is fixedly connected with the telescopic rod of a brake cylinder. A pneumatic motor comprises a pneumatic motor shaft, wherein the pneumatic motor shaft, a rotating shaft and a driving wheel shaft are equipped with chain wheels to transmit power from the pneumatic motor to the driving wheel. The pneumatic pipeline internal traveling device can be used for braking reliably and safely.

The invention provides a powerful balance brake device comprising a brake drum, a bottom plate, a left brake shoe, a right brake shoe and cam mechanisms. The left brake shoe and the right brake shoe are oppositely arranged to form two pairs of opposite end faces, guiding holes are formed in the two end faces of the left brake shoe and the two end faces of the right brake shoe, and one cam mechanism is arranged between each pair of opposite end faces of the left brake shoe and the right brake shoe; and each cam mechanism comprises a cam shaft, a guide shaft and a cam, the cams are arranged on the cam shafts, through holes are formed in the middle portions of the guide shafts, the cam shafts penetrate through the through holes, one end of each guide shaft is inserted into the corresponding guiding hole of the left brake shoe, and the other end of each guide shaft is inserted into the corresponding guiding hole of the right brake shoe. The technical problems that the braking force is small and braking is not sensitive are solved.

The invention provides a powerful cam brake balancing device. The powerful cam brake balancing device comprises a brake drum, a bottom plate, friction plates, a left brake shoe, a right brake shoe andcam mechanisms, wherein the two ends of the left brake shoe and the right brake shoe are separately provided with butt blocks; the butt blocks are provided with cam holes; the left brake shoe is opposite to the right brake shoe to form two pairs of opposite ends; the butt blocks on each pair of opposite ends are arranged in an inner and outer staggered mode; each cam mechanism is arranged betweeneach pair of opposite ends; each cam mechanism comprises a camshaft, an inner cam and an outer cam, wherein the inner cam and the outer cam are separately fixed on the camshaft; the outer cams are eccentrically arranged relative to the inner cams; the outer cams are arranged in cam holes of the outer butt blocks; and the inner cams are arranged in the cam holes of the inner butt blocks. By meansof the powerful cam brake balancing device, the technical problems of low braking force and insensitive braking can be solved.

The invention relates to a hydraulic control acceleration controller of a pipe cleaner. The hydraulic control acceleration controller is used for pipe cleaning construction such as pipeline internal detection, liquid drainage and descaling. According to the technical scheme of the hydraulic control acceleration controller of the pipe cleaner, a radial oil cylinder is arranged at the radial position of a center oil cylinder, a piston rod of the radial oil cylinder extends outwards away from the center oil cylinder, and hydraulic oil is introduced into the side, close to the center oil cylinder,of the radial oil cylinder. A compression spring is arranged in a rod cavity of the center oil cylinder, the hydraulic oil is introduced into the rod cavity, the hydraulic oil of the center oil cylinder communicates with the hydraulic oil of the radial oil cylinder, and a piston rod of the center oil cylinder penetrates through a cylinder cover to extend outwards. A friction head is driven to work through the center oil cylinder and the radial oil cylinder, the acting force of the oil cylinders is amplified through cooperation of the large oil cylinder and the small oil cylinder, and the pipecleaner can be effectively prevented from generating speed impact.