22results about How to "Improve braking performance" patented technology

The utility model discloses a brake disc casting mold which comprises a pouring cup and a mold core, the transverse pouring gates comprise the first transverse pouring gate and the second transverse pouring gate, the first transverse pouring gate is connected with the pouring cup and extends outwards in the first direction, the second transverse pouring gate is connected with the pouring cup and extends outwards in the second direction, and a first included angle space is formed between the first transverse pouring gate and the second transverse pouring gate; the cavity is provided with a first inlet and a second inlet, and the first inlet and the second inlet are symmetrically distributed on the two sides of the cavity relative to the center of the cavity; wherein the mold cavity comprises a first mold cavity, the first mold cavity is arranged in the first included angle space, the first cross gate is connected to a first inlet of the first mold cavity through the first flow gate, and the second cross gate is connected to a second inlet of the first mold cavity through the second flow gate. The brake disc casting mold is excellent and stable in mechanical property, the brake performance of a whole vehicle can be improved, meanwhile, defective products can be reduced, and the production and management cost of an enterprise is reduced.

The utility model belongs to the technical field of automobile brake equipment, concretely relates to a flange plate brake structure, including combination disc and the friction piece and brake caliper of setting on combination disc, combination disc includes first brake disc, second brake disc and circumferential connecting block, the circumferential connecting block is set as multiple blocks, and is fixed between first brake disc and second brake disc, first brake disc and second brake disc concentricity arrangement, multiple the circumferential connecting block is first brake disc or second brake disc as the center of circle and presents the circular distribution. The utility model discloses the cooperation structure of combination disc and friction piece, when brake caliper action, can make first half friction ring and second half friction ring on friction piece alternate and brake pad contact, realize the heat dispersion when continuous braking, again with the cooperation of rotating circumferential connecting block guarantee first brake disc and second brake disc heat conduction to first half friction ring and second half friction ring, reduce the heat saturation effect, keep stable brake effect.

The utility model provides a tricycle brake disc relates to brake disc technical field, including the support shell, the top fixedly connected with two support blocks of support shell, the top of support block is established with the axle hole, the bottom fixedly penetrates to the bottom of support shell of axle hole, the top of support shell is provided with the rotating lever, the top fixedly connected with the rotating plate of rotating lever, two the top of rotating plate is provided with the support plate, the inner wall rotationally connected with the axle of axle hole. The utility model, through fixedly connecting two support blocks in the top of support shell, and establishing the axle hole in the top of support block, makes rotating lever can drive rotating plate to carry out effective rotation control, the rotary connection of rotating plate and support plate makes whole brake system can realize more even brake force distribution, especially, in the design, the inner wall fixedly connected baffle of brake shell's one side, and fixedly connected through the spring, makes baffle can rebound quickly in the brake process, ensures that the contact of brake shoe and brake disc is more even.

The invention discloses a double-acting type motor disc brake device which comprises a driving module, a transmission module and an execution module. The driving module is composed of a motor, a bevel gear and a shell, the direction of torque output by the motor is changed through the bevel gear, and the torque is transmitted to the transmission module; the transmission module is composed of a gear, a transmission shaft and a bearing and used for increasing torque and transmitting the torque to the execution module. The execution module is composed of a threaded rod, brake pads and a bearing, threads on the left side and the right side of the threaded rod are opposite in rotating direction, torque drives the threaded rod to rotate and drives the two brake pads to move oppositely, and a brake disc is extruded to complete the braking action. The single motor is used for achieving simultaneous opposite movement of the brake pads on the two sides, and deformation caused by extrusion of the brake pads is avoided.

The utility model relates to a rear brake stroke guaranteeing tool, which is clamped on a vehicle handle, measures the swing displacement of a brake handle by taking the vehicle handle as a reference, and structurally comprises a clamping part which is connected with the vehicle handle in a clamping manner, and a measuring part which is positioned on a swing displacement path of the brake handle and measures the displacement of the brake handle. According to the utility model, the clamping part at the front end of the clamp is clamped on the handlebar of the electric vehicle, the scales on the left side and the right side are read, applicable brake requirements are set for different vehicle types, the brake is adjusted to the appointed scale position of the hand brake, and the rear brake stroke in the production and manufacturing process of the electric vehicle is consistent.

The utility model discloses a tread pattern and a cross-country muddy ground tire, which comprises a plurality of transverse grooves which are transversely arranged on a tread in a penetrating manner, and each transverse groove is of a wave-shaped structure with two opposite opening directions; the transverse pattern groups are arranged between every two adjacent transverse grooves; the middle longitudinal groove longitudinally penetrates through the middle parts of the transverse pattern groups; the middle part of the middle longitudinal groove is an equidistant part which is not changed in width and is arranged in an inclined structure, and the upper end and the lower end of the middle longitudinal groove are expanding parts which are in an expanding shape from inside to outside; the shoulder longitudinal groove longitudinally penetrates through the two sides of the transverse pattern group and is of a three-folded-section structure; and the transverse pattern groups are divided by the middle longitudinal grooves and the shoulder longitudinal grooves to form middle pattern blocks and shoulder pattern blocks which are arranged in a central symmetry structure. Compared with the prior art, the utility model has the beneficial effects of not only being capable of keeping strong braking performance in severe road conditions such as mountainous regions, deserts, muddy lands and the like, but also having good drainage and mud discharge capabilities.

The utility model discloses a porous heat dissipation type automobile brake pad, which belongs to the field of automobile brake pads and comprises a friction material layer, a plurality of inclined holes are arranged on the front surface of the friction material layer, a plurality of vertical through holes are arranged at the top and the bottom of the friction material layer, the vertical through holes are communicated with the inclined holes, and a plurality of transverse through holes are transversely arranged on the friction material layer. A plurality of inclined holes are formed in the front face of the friction material layer, a plurality of transverse through holes are formed in the front face of the friction material layer and communicated with the inclined holes, a plurality of through grooves are formed in the rear portion of the friction material layer, a transition layer is fixedly installed on the rear side of the friction material layer, a back plate is fixedly installed on the rear side of the transition layer, the through grooves are located on the rear portions of the inclined holes, and honeycomb holes are formed in the circumferential portion of the transition layer. The inclined holes are communicated with the multiple vertical through holes and the multiple transverse through holes, the heat dissipation effect of the friction material layer can be improved, the honeycomb holes of the transition layer are matched, good heat dissipation is achieved, good braking performance is kept, the through grooves are communicated with the inclined holes, powder generated by friction can fall off, and braking is prevented from being affected.

The utility model discloses a conical braking device, and relates to the technical field of braking. Comprising a motor body, the middle of the motor body is provided with an axial rod, the lower portion of the axial rod is sleeved with a spring, the lower portion of the axial rod is provided with a pointing pin, the motor body is provided with a conical brake disc through the pointing pin, the conical brake disc is arranged on the outer side of the spring, and the bottom end of the axial rod is provided with a mounting tailstock which is provided with a conical friction plate. The spring stretches out and draws back in the vertical direction and is used for driving the conical brake disc to move in the vertical direction, and the pointing pin plays a role in guiding the spring. Through the integral arrangement of the device, the strong braking effect on the motor body is realized in a narrow space, so that the transmission accuracy of the motor body is ensured, the installation condition of small occupied space is realized, the device has the advantages of strong braking effect, compact structure, easiness in manufacturing and low cost, and the applicability is improved.

The invention provides a dual-motor anti-backlash heavy-load numerical control rotary table, and belongs to the field of numerical control machine tools, the dual-motor anti-backlash heavy-load numerical control rotary table comprises a main base body, a base protection top block is fixedly connected to the top surface of the main base body through a horizontal bolt, and a working platform is horizontally arranged on the top surface of the base protection top block. The rotary table can accurately rotate and position according to a preset angle, and a high-precision machining reference is provided for a workpiece, so that the size precision and the shape precision of a machined part are remarkably improved, and the requirement for high-precision machining is met. For example, in the machining process of aerospace parts, the rotary table can ensure that the machining precision reaches the micron level for machining of some holes, contours and other characteristics with extremely high precision requirements, the quality and performance of the parts are effectively improved, overall workpiece machining can be more accurate and efficient, and the machining efficiency is improved. And multiple directions can be expanded to meet the machining requirement, the bearing capacity is greatly improved, and the range of the types of machined workpieces is further widened.

The utility model discloses a disc brake preforming press which comprises a machine frame, a pressing plate is arranged on the machine frame, a die is arranged below the pressing plate, the die comprises an upper die and a lower die, a discharging groove is formed in the lower die, a positioning bottom plate is arranged at the bottom of the discharging groove, and a die lifting device is arranged on the lower die. According to the die, the thickness of the machined brake pad is adjusted by adopting the liftable positioning bottom plate, so that the applicability of equipment is greatly improved. And secondly, through the die and the spreading device, multi-layer and multi-ingredient production of the brake pad is achieved, the brake performance of the produced brake pad is improved, and the service life of the brake pad is prolonged. And secondly, by arranging the steel backing placing device, the automation degree of the equipment is greatly improved, and manual operation steps are effectively reduced. And thirdly, by arranging a controller, the intelligent level of the whole equipment is further improved, and meanwhile the machining precision of products is guaranteed.

The utility model discloses a kind of multi-cylinder high-performance brake caliper, including caliper shell and support, multiple sub-pump cylinder bodies are provided on caliper shell, piston is provided in each sub-pump cylinder body, brake pad assembly is provided on piston, brake pad assembly includes sound-absorbing sheet, metal backplate, heat insulating sheet, heat sink and friction block, the inner end surface of heat sink and friction block is bonded fixed;Limiting recess is provided on the inner end surface of heat sink, heat insulating sheet is embeddedly set in limiting recess, the inner end surface of heat sink and the outer end surface of metal backplate are bonded fixed, the inner end surface of metal backplate and the outer end surface of sound-absorbing sheet are bonded fixed;Positioning plate is integrally provided on the upper end of support, the upper end of metal backplate is provided with positioning sliding block;Positioning lug is provided on the lower end of caliper shell, the lower end of metal backplate is provided with guide through-hole, positioning lug one end passes through guide through-hole setting.The above technical solution, structure design is reasonable, braking performance is stable, brake pad heat dissipation performance is good, heat insulation effect is good and practicality is good.

The invention discloses a mechanical braking and in-cylinder compression release braking combined control method and system, and relates to the technical field of service braking. Comprising the following steps: collecting historical data, setting an activation condition, dividing scenes according to a vehicle speed difference value, a road gradient and a road adhesion coefficient, marking priorities, and generating scene labels; the method comprises the following steps: collecting real-time data of a vehicle, a driving condition and operation, and preprocessing the collected real-time data; according to the technical key points, historical data are analyzed, labels are given to different scenes, the problems that in the current brake technology, the starting precision is insufficient, and the applicable scene is single are solved, braking can be accurately started under various conditions, data are collected through active input, automatic judgment and scene adaptation, and the braking precision is improved. Scenes are divided in combination with the vehicle speed difference, the gradient and the road condition, response is rapid, accuracy is high, false triggering can be effectively avoided, meanwhile, an accurate scene basis is provided for a subsequent control strategy, and the method has a good use prospect.

The utility model relates to the field of braiding machines, and particularly discloses a braiding machine spindle which comprises a first plate body, a second plate body and a connecting column, the connecting column is fixed between the first plate body and the second plate body, and the second plate body is provided with a brake assembly and a brake triggering piece used for triggering the brake assembly. The connecting column is slidably sleeved with a winding sliding block and a transmission sliding block, the winding sliding block is close to the second plate body, a first elastic piece is arranged between the winding sliding block and the second plate body, the transmission sliding block is connected with an elastic assembly and a linkage assembly, the transmission sliding block is in linkage with the brake triggering piece through the linkage assembly, and the elastic assembly is used for moving the transmission sliding block. The winding sliding block is pulled by the first elastic piece to be away from the transmission sliding block, and the transmission sliding block moves under the elastic force of the elastic assembly and drives the brake triggering piece to brake. The brake device has the advantages of being stable and durable in structure and high in brake precision.

The present invention discloses a metal sulfide and its application, and relates to the technical field of sulfides. The metal sulfide of the present invention is a zinc sulfide material, and the zinc sulfide material satisfies the following relationship: 0.2≤span×((I 1 +I 3 ) / I 2 )≤6.3; wherein, the span is the particle size distribution span value of the zinc sulfide material; the I 1 ,I 2 ,I 3 The peak intensities of the diffraction peaks at 26.7-27.1°, 28.4-28.8°, and 30.4-30.8° in the XRD spectrum of the zinc sulfide material obtained by XRD measurement are respectively represented. The metal sulfide of the present invention is applied to the friction material, which helps the friction material to have a small change rate of friction coefficient and a low wear rate under extreme environments such as low temperature and high temperature.

A sample collector rotating disc brake device comprises a rack, the rack comprises a hydraulic bottom plate, hydraulic side plates are fixedly connected to the two sides of the hydraulic bottom plate, a hydraulic cover plate is fixedly connected to the upper ends of the two hydraulic side plates, a hydraulic device is arranged between the hydraulic bottom plate and the hydraulic cover plate and comprises two hydraulic rods, and each hydraulic rod is slidably connected with a ring. The rings are fixedly connected through a ring connecting piece, and the ring connecting piece is fixedly connected with one end of the support; the other end of the support comprises an inverted U-shaped support arranged on the upper side and a forward U-shaped support arranged on the lower side, the end portions of one ends of the forward U-shaped support and the inverted U-shaped support are fixedly connected with stroke tracking devices, the bending positions of the ends connected with the stroke tracking devices are fixedly connected with damping devices, and the damping devices are connected with brake devices; the rotating disc can be positioned, the braking effect is improved, gravity center changes of the rotating disc can be self-adapted, and the height of the support can be adjusted.

The utility model relates to the field of brake shells, and discloses a high-strength brake shell which comprises a shell body and a base layer, radiating fins are fixedly arranged on the two sides of the shell body, reinforcing mechanisms are fixedly arranged on the two sides of the middle position in the shell body, convection holes are formed in the two sides of the upper end and the lower end of the shell body, and the radiating fins are arranged on the base layer. The inner layer is fixedly arranged on the inner surface of the base layer, the sealing layer is fixedly arranged on the inner surface of the inner layer, the reinforcing layer is fixedly arranged on the outer surface of the base layer, and the wear-resistant coating is fixedly arranged on the outer surface of the reinforcing layer. According to the utility model, through the design of the radiating fins and the convection holes, the radiating fins can quickly radiate heat generated when a brake system works, so that the brake system can stably operate in a high-temperature environment, the stability of the brake performance is powerfully ensured, and the radiating fins are matched with the convection holes to form an air circulation channel, so that the air circulation efficiency is improved. And the heat dissipation efficiency is further improved.

The invention discloses a fall prevention column split type oil drilling support frame, which relates to the technical field of drilling derricks, and comprises: a drilling derrick, a platform, and a climbing ladder, wherein the platform is fixedly connected to the drilling derrick, and the climbing ladder is fixed to the side of the drilling derrick, and further comprises: a steel cable, a safety buckle, an anti-fall safety detection component, and a safety processing component, wherein the steel cable is fixed to the drilling derrick. The invention promotes the improvement of the overall protection system through the provision of the safety processing component, and can effectively ensure the safety of workers under various complex working conditions; and the method of stopping the falling of the safety buckle on the steel cable by the cooperation between machines is different from the prior art which relies on electronic equipment and sensors to detect the falling of workers, and is triggered by the influence of centrifugal force on the counterweight block, thereby avoiding the problem that the electronic equipment is easily disturbed in the complex industrial environment of the drilling derrick.

The invention discloses a control method for inhibiting aircraft brake pressure overshoot, and aims to solve the problems that aircraft wheels enter a frequent slipping state due to sudden torque change caused by step change of brake pressure, and brake pitching, low brake efficiency and tire wear are extremely easy to occur if pressure is not released in time. Brake pressure acceleration control is carried out, frequent slipping of airplane wheels caused by overshoot change of brake torque can be effectively avoided, meanwhile, left / right brake pressure consistency control is carried out on the basis of the pressure acceleration control, stable and efficient braking can be completed in the normal landing braking process of an airplane, the reliability and safety of a braking system are improved, and the service life of the airplane is prolonged. And the rear brake system with the overshoot suppression control function is added, so that the brake distance is shortened under the same working condition, the speed reduction rate is improved, anti-skid work is avoided, and the brake performance is obviously improved.

An electric push rod brake structure for a medical tower crane comprises a rotary base electric push rod, a pressing arm lever, a spring compensation blocking column, a brake column disc and a hollow rotating shaft, and is characterized in that the rotary base electric push rod is installed on a platform base capable of rotating along the plane of the brake structure, and the other end of the rotary base electric push rod is connected with the pressing arm lever through the rotating shaft; one end of the pressing arm lever is fixed on a fixed rotating shaft vertical to the brake structure base, and the other end of the pressing arm lever is a power driven end connected with the electric push rod; the spring compensation bumping post is of a spring bumping post structure mounted on the pressing arm lever; the center of the brake column disc is fixed on the hollow rotating shaft, and a column body is fixed on the brake column disc. The plug pin type stepped braking structure is achieved through the electric push rod, safety and reliability are achieved, the structure is simple, and installation and control are convenient.

The utility model provides a monorail crane tooth drive unit with multi-stage braking. The monorail crane tooth drive unit comprises a power part, a service braking part and a mounting frame, the power part comprises a driving machine with a brake and a driving gear; the driving gear is arranged on an output shaft of the driving machine in a sleeving manner; the service braking part is connected with the driving gear and is suitable for braking the driving gear; the mounting frame is provided with a space for containing the driving gear and located between the power part and the service braking part, one side of the mounting frame is fixed to the power part, and the other side of the mounting frame is fixed to the service braking part. According to the monorail crane tooth driving unit with the multi-stage braking function, traveling braking is achieved through the traveling braking part, parking braking is achieved through the driving machine with the brake, the two braking modes are combined, the safety of the monorail crane tooth driving unit is greatly improved, and the braking effect is more reliable.

The utility model discloses an electric scooter drum brake with a brake assembly, which belongs to the technical field of electric scooter drum brakes and comprises a drum brake shell, a rotating shaft is rotatably connected to the inner bottom of the drum brake shell, two groups of brake shoes are arranged on the outer wall of the rotating shaft, mounting blocks are arranged on the inner side walls of the two groups of brake shoes, and two groups of springs are arranged in the drum brake shell. An extrusion block is arranged in the drum brake shell, a rotating rod is arranged at the bottom of the extrusion block, one end of the rotating rod penetrates through the inner bottom of the drum brake shell and is connected with a connecting rod arranged outside, cavities are formed in the two brake shoes, and heat dissipation assemblies are arranged in the two cavities; the heat dissipation effect of the brake pad can be improved under the action of the heat dissipation assembly, the brake pad can rapidly dissipate heat after braking is completed, and the braking effect of the brake pad can be improved.

The utility model relates to the technical field of disc brakes, and discloses an oil pressure disc brake special for a wire pulling double-piston road vehicle, which comprises a support, the front surface of the support is fixedly connected with an upper shell, the inner wall of the bottom end of the upper shell is provided with a clamping assembly, the clamping assembly comprises a piston, the piston is arranged on the inner wall of the bottom end of the upper shell, and the piston is arranged on the inner wall of the bottom end of the upper shell. Two groups of brake pads are arranged at the bottom end of the piston, an elastic sheet is arranged between the two groups of brake pads, a second bolt is in threaded connection with the right side of the upper shell, a lower shell is in threaded connection with the bottom end of the second bolt, and the second bolt penetrates through the brake pads and the elastic sheet to be in threaded connection with the lower shell. According to the utility model, the lead is pulled to drive the rotating rod to rotate, so that the pistons are pressed to move inwards, the braking response speed is improved through the technology of pulling the double pistons through the lead, and the stability is provided through the two groups of brake pads, so that the braking distance is reduced, and the riding safety is improved.