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435 results about "Master cylinder" patented technology

In automotive engineering, the master cylinder is a control device that converts force (commonly from a driver's foot) into hydraulic pressure. This device controls slave cylinders located at the other end of the hydraulic system.

Intelligent control method and system for extrusion forming of aluminum profile

The invention relates to an intelligent control method and system for extrusion forming of an aluminum profile, and the method comprises the following steps: carrying out acoustic emission sensor array measurement and preprocessing on a mold inlet region of the aluminum profile in an extrusion process, and obtaining a preprocessed acoustic emission signal sequence; performing time-frequency domain energy distribution analysis on the acoustic emission spectrum to generate an acoustic emission energy spectrogram; carrying out material flow stability analysis based on the spectrogram to obtain a flow analysis result; if the flow instability degree exceeds the target stability range, multi-constraint optimization calculation is conducted on the main cylinder pressure and the extrusion speed based on the analysis result, and optimization control parameters are obtained; and finally, closed-loop feedback control is performed on the extruder through a distributed PID controller, so that the material flow stability is kept in a target range, intelligent high-precision forming control is realized, and the problem that in the traditional extrusion process, the material flow stability is often influenced by factors such as the extrusion speed, the main cylinder pressure and the mold design is solved. And a flow instability phenomenon is easy to occur.
Owner:ZHAOQING KEDA MASCH MFG CO LTD

Electric hydraulic brake

An electric hydraulic brake includes: wheel brakes configured to braking force to wheels of a vehicle; a reservoir storing brake oil; a master cylinder connected to the reservoir, and operated in conjunction with a main brake motor to generate pressure of the brake oil; a first controller configured to control the main brake motor; a hydraulic controller including a pump configured to form pressure of the brake oil in conjunction with an auxiliary brake motor, and a hydraulic block configured to selectively transmit the pressure of the brake oil formed in the master cylinder or the pump to the wheel brakes; and a second controller configured to control the auxiliary brake motor when the master cylinder or the first controller malfunctions. The hydraulic controller is provided with an auxiliary flow path to transmit the brake oil from the reservoir to the pump directly through the auxiliary flow path.
Owner:HYUNDAI MOBIS CO LTD

Control device for a bicycle

A control device includes a housing having a base portion and an extension portion. The base portion of the housing has an inward facing side and an outward facing side. The control device includes a lever coupled to and pivotable relative to the housing, and a master cylinder portion supported by the housing. The master cylinder portion has a hollow fluid cylinder. The control device also includes a piston assembly supported by the housing. The piston assembly is movable relative to the master cylinder portion. At least part of the piston assembly is disposed within the master cylinder portion. The master cylinder portion is angled relative to the outward facing side of the base portion of the housing, such that the first end of the fluid cylinder is closer to the outward facing side than the second end of the fluid cylinder is relative to the outward facing side.
Owner:SRAM LLC

Oil reservoir assembly for vehicle

The present disclosure in some embodiments provides an oil reservoir assembly for a vehicle, the assembly comprising: a first oil reservoir formed with an outlet; a second oil reservoir spaced apart from the first oil reservoir in a lateral direction and in front of the vehicle, in fluid communication with a master cylinder, and having an inlet; a connecting member connecting the outlet and the inlet to convey a working fluid from the first oil reservoir to the second oil reservoir and a first rib located inside the second oil reservoir, extending from an upper surface of the second oil reservoir and parallel to a longitudinal direction of the vehicle, and extending in a first direction of the inlet.
Owner:HYUNDAI MOBIS CO LTD

Automobile brake master cylinder

The invention discloses an automobile brake master pump, which comprises a brake pump assembly, a first piston and a second piston, the brake pump assembly comprises a main cylinder, a first piston and a second piston, the main cylinder is provided with an end A and an end B, the first piston is adjacent to the end A, the second piston is adjacent to the end B, a first sealing chamber is formed between the first piston and the second piston, and a second sealing chamber is formed between the second piston and the first sealing chamber. On one hand, the second sealing chamber is compressed to directly increase the pressure, on the other hand, fluid is supplemented to the first sealing chamber through the liquid inlet pipe, the hydraulic pressure of the first sealing chamber is forcibly increased, pressure loss caused by bubbles can be counteracted through superposition of the two, and it is ensured that the first branch pipe and the second branch pipe output enough braking force to the front and rear wheel calipers; brake failure or lag caused by moisture influence is avoided; the basic thrust applied by the push rod and the additional hydraulic increment generated by the electromagnet form a synergistic effect, and the pressure of the first sealing chamber and the second sealing chamber is remarkably amplified.
Owner:ANHUI DONG LI AUTO PARTS CO LTD

Hydraulic support multi-objective optimization control method for temporary support of mine roadway tunneling

The invention belongs to the technical field of mining machinery automation control, and relates to a hydraulic support multi-objective optimization control method for temporary support of mine roadway tunneling, which comprises the following steps: constructing a state vector and a continuous state equation of a hydraulic support system and discretizing to obtain a discrete state space model; displacement and pressure synchronous tracking of the hydraulic support system is taken as a target, a model prediction controller is adopted to carry out rolling optimization search of a control quantity under a variable constraint condition, an expansion state observer is combined to estimate total disturbance of the hydraulic support system in real time, the total disturbance is fed forward and compensated into the model prediction controller, and a final control quantity is generated; and constructing an asymmetric coupling synchronous network by taking the master cylinder as a benchmark, and forming cooperative control of the master cylinder and the slave cylinder by adopting a synchronous deviation mechanism and a final control quantity to finish multi-objective optimization control of the hydraulic support. According to the invention, safe, efficient, stable and energy-saving accurate control of a single hydraulic column and multi-target cooperative control of pump-controlled multiple hydraulic columns can be realized.
Owner:CHINA UNIV OF MINING & TECH (BEIJING)

Rear cover assembly structure and method for line control brake system and master cylinder assembly

The invention relates to a rear cover assembly structure and method for a line control brake system and a master cylinder assembly. The rear cover assembling structure comprises a main cylinder, a rear cover and a steel wire clamping ring. A main cylinder hole is formed in one end of the main cylinder, the inner diameter of the main cylinder hole is gradually reduced from outside to inside, and a first annular groove is concavely formed in the inner side wall of the main cylinder hole; the rear cover is embedded in the main cylinder hole, and the outer side wall of the rear cover is matched with the inner side wall of the main cylinder hole; a second annular groove and a mounting groove are further formed in the outer side wall of the rear cover, and the mounting groove is used for mounting an O-shaped ring. A main cylinder and a rear cover are fixed through a steel wire clamping ring, a first annular groove is formed in a cylinder hole of the main cylinder, a second annular groove is synchronously formed in the outer circle of the rear cover, after assembly, one part of the steel wire clamping ring can be clamped in the first annular groove of the cylinder hole of the main cylinder, and the other part of the steel wire clamping ring can be clamped in the second annular groove in the outer circle of the rear cover. And the axial fixation between the rear cover and the main cylinder is realized.
Owner:辰致科技有限公司

A hose and tube assembly for an automotive ABS master cylinder

The application discloses a kind of hoses and oil pipe assembly for automobile ABS brake master cylinder, belong to automobile parts technical field.Hose for automobile ABS brake master cylinder includes in turn from inside to outside: inner rubber layer, intermediate framework layer and outer rubber layer;The rubber of inner rubber layer includes: EPDM raw rubber, liquid ethylene-propylene rubber, carbon black N550, white carbon black, antioxidant 445, stearic acid, 14-40B and crosslinking aid TAIC;Intermediate framework layer is made of yarn knitting;The rubber of outer rubber layer includes: EPDM raw rubber, white carbon black, carbon black N550, stearic acid, zinc oxide, insoluble sulfur, accelerator TBZTD and phenolic adhesive resin.The application is applied to the aspect of automobile ABS brake master cylinder connecting pipe, solve the problem that existing ABS brake master cylinder oil pipe for automobile is strong, loud noise, with high temperature resistance, high pressure resistance, good bending resistance, reduce noise characteristics.
Owner:QINGDAO SUNSONG CO LTD

Vehicle braking system and vehicle having the same

The present invention provides a vehicle braking system and a vehicle. The vehicle braking system (1) comprises a brake fluid control assembly (100), connecting oil pipes (300), and a brake master cylinder assembly (200). The brake fluid control assembly comprises an oil circuit block (110) and a pressure booster (120). The pressure booster is mounted on the oil circuit block. Oil circuit block ports (111) are provided on the side of the oil circuit block, and one end of each connecting oil pipe is connected to an oil circuit block port, and the brake master cylinder assembly and the brake fluid control assembly are arranged separately. Assembly ports (210) are provided on the outer circumferential surface of the brake master cylinder assembly, and the other end of each connecting oil pipe is connected to an assembly port. The brake master cylinder assembly communicates with the brake fluid control assembly by connecting oil pipes, and both the brake master cylinder assembly and the pressure booster can be driven to output brake fluid from the oil circuit block.
Owner:BYD CO LTD

Anti-lock device for wheel and brake system equipped with such device

The invention relates to an anti-lock device (1) for a wheel, which is arranged in a hydraulic pressure circuit between a master cylinder (2) and at least one brake caliper (3) of the wheel, in particular for an aircraft. According to the invention, the device comprises: a centrifugal element (4) attached to a rim (5) of the wheel and movable from a retracted position when the wheel is rotated at a speed below a threshold rotational speed to a deployed position due to centrifugal force when the wheel is rotated at a speed beyond the threshold rotational speed; a pressure regulating system (6) comprising a hydraulic inlet (6a) connected to the master cylinder (2) and a hydraulic outlet (6b) connected to the hydraulic inlet of the brake caliper (3), the pressure regulating system (6) is movable between a hydraulic circuit closed position when the centrifugal element (4) is in the retracted position and a hydraulic circuit open position driven by the centrifugal element (4) in the deployed position.
Owner:BELLINGER HOLDINGS

EMB structure capable of achieving mechanical supercharging and pressure relief backup

The invention relates to an EMB structure capable of achieving mechanical pressurization and pressure relief backup, and belongs to the field of automobile brake-by-wire systems. A main cylinder structure is inserted into a transmission mechanism of an EMB and a pedal simulator structure, when an EMB motor rotates, a push rod pushes a piston to compress oil in a main cylinder, then a caliper piston is pushed to achieve clamping of calipers, and meanwhile an oil outlet hole is reserved in the main cylinder of the EMB and connected to a main cylinder of the pedal simulator. Through opening and closing of the electromagnetic valve and plugging and communication of an oil return hole in the pedal simulator structure, the functions of mechanical backup and emergency pressure relief of braking force are achieved, and the safety redundancy of vehicle braking is greatly improved. Efficient electric control braking, failure redundancy and safe pressure relief are achieved in a single structure, and the reliability is remarkably improved.
Owner:JILIN DONGGUANG AOWEI AUTOMOBILE BRAKE SYST

Rolling back safety warning method and system based on millimeter wave radar evaluation detection

The application provides a vehicle coasting safety early warning method and system based on millimeter wave radar evaluation detection, and belongs to the technical field of vehicle braking control; the method comprises the following steps: when a vehicle is in a potential coasting working condition, a millimeter wave radar is activated to detect an obstacle behind the vehicle, and a relative distance and a relative speed are obtained; a micro-motion feature accumulation analysis is performed on a return signal to identify the type of the obstacle; a dynamic risk evaluation factor is calculated according to the relative distance, the relative speed and the type of the obstacle, and when the dynamic risk evaluation factor exceeds a threshold value, a hierarchical early warning is performed; and a driver intention recognition model is constructed through a negative correlation between a brake master cylinder pressure change rate and the relative speed to inhibit false early warning. The application can effectively distinguish between static obstacles and dynamic obstacles while avoiding misjudgment of the driver intention, and thus ensures the accuracy and intelligent level of the coasting early warning.
Owner:CHERY AUTOMOBILE CO LTD

A machining positioning jig for a brake master cylinder

The utility model provides a kind of brake master cylinder machining positioning jig, it is related to positioning tooling technical field, including bottom plate, first positioning block, second positioning block and first pressure cylinder are set on bottom plate, first positioning block is opened with U-shaped gap, second positioning block is in convex type, first pressure cylinder is set in the side of second positioning block away from first positioning block, the piston rod of first pressure cylinder sets first pressing block. When using, one end of pump body is placed in U-shaped gap, and the middle position of pump body is placed in second positioning block, control first pressure cylinder to press pump body in first positioning block, i.
Owner:安思通(厦门)制动科技有限公司

A large long cylindrical multi-station horizontal extrusion hydraulic press

The present invention belongs to the technical field of extrusion hydraulic presses, and specifically discloses a large-scale long-cylinder multi-station horizontal extrusion hydraulic press, comprising a base, a column, a front beam, a rear beam, a slider, a return cylinder, a main cylinder, a punch assembly, and a die assembly; the column is fixed between the front beam and the rear beam; the main cylinder and the return cylinder are used to drive the slider to reciprocate; the punch assembly comprises a punch structure, a slide, a slide, and a punch switching cylinder, the slide is fixed on the slider, and the punch switching cylinder is fixed on the slide; the punch structure is arranged on the slide; the slide is vertically slidably connected to the slide; the punch structure comprises a roughing punch and a stretching punch; the punch switching cylinder is used to drive the slide to move vertically; the die assembly comprises a stretching die and a clamping die structure, and the clamping die structure is used to install the stretching die. By providing a roughing punch and a stretching punch, and using a punch switching cylinder to drive the roughing punch and the stretching punch to move vertically, the corresponding punches are moved to the working position, thereby realizing a rapid conversion of the roughing or extrusion process.
Owner:CHONGQING JIANGDONG MACHINERY

ABS device for a hydraulic braking system of a bicycle, motorcycle or light vehicle

An ABS device for a hydraulic braking system of a bicycle or motorcycle, in particular for bicycles, comprises an electrically actuated valve unit (13) which is switchable between a first operating state in which a master cylinder (2) associated with a brake lever is in contact with an actuating cylinder (3) of a brake device and a second operating state in which the connection is interrupted and the actuating cylinder (3) of the brake device is in contact with a fluid accumulator (9).An electronic control (E) is designed to control the position of the moving element (11) of the fluid accumulator (9) both during activation of the ABS function and during deactivation of the ABS function in order to effect: a non-abrupt, but progressive, change in the pressure (CP) in the line (8) connected to the actuating cylinder (3) of the brake device (F), as a function of the rotational speed (ω) of the wheel (R1) to which the brake device is assigned, and as a function of a second parameter, which is the pressure (CP) in the actuating cylinder (3) of the brake device or the deceleration of the vehicle, which is detected or calculated from a sensor assigned to the vehicle.
Owner:BLUBRAKE SRL

Bicycle hydraulic braking system of the disc type and related components and methods

A hydraulic disc braking system is disclosed. The system has a manually operated control device for a cyclist to issue a braking command. The system has a master cylinder assembly having a membrane dividing the hydraulic fluid tank into a variable volume filled chamber and a complementarily variable volume empty chamber. A membrane detector senses the presence of the membrane relative to a predetermined position in the tank and / or a meter measures the distance of the membrane from the ceiling of tank.
Owner:CAMPAGNOLO SRL

HYDRAULIC UNIT OF AN ELECTRONICALLY CONTROLLED BRAKING SYSTEM

Hydraulic unit of an electronically controlled brake system, comprising a modulator block (80) with several receiving bores (164, 181 to 185) in which several valves (64, 81 to 84) and pressure sensors (85a, 85b) coupled to a master cylinder (20) are installed to control hydraulic brake pressure supplied to vehicle wheels, wherein passages (180) connecting the receiving bores are formed in the modulator block (80) and the passages (180) are formed such that they are divided into two layers (P1, P2), wherein the receiving bores (164, 181 to 185), in which an inlet valve (81), an outlet valve (82), a start valve (83), a simulation valve (64), a pressure sensor (85a, 85b) and a switching valve (84) are installed, are formed in one surface of the modulator block (80) and the receiving bore (186), in which a shut-off valve (86) is installed, is formed in the other surface of the modulator block (80), wherein the multiple receiving bores (164, 181 to 185) formed in a surface of the modulator block (80) have installed the inlet valve (81), the outlet valve (82), the start valve (83), the simulation valve (64), the pressure sensors (85a, 85b) and the switching valve (84) in this order.
Owner:HL MANDO CORP PYEONGTAEK-SI

Small-table-board ultrahigh-pressure extrusion hydraulic press

The invention belongs to the technical field of hydraulic equipment, and particularly discloses a small-table-board ultrahigh-pressure hydraulic extrusion press which comprises a hydraulic system, an electrical system, a supercharger and a hydraulic body. The hydraulic body comprises a rack, a liquid filling device, an upper cross beam, a main cylinder, a return cylinder, an abutting mechanism, a pressing head and a workbench. The pressurizer is used for pressurizing liquid of the hydraulic system and conveying the liquid into the liquid filling device; a big-end-down stepped hole is formed in the rack; a cylinder body of the main cylinder is of a big-end-down protruding structure, a through hole matched with the small end of the cylinder body is formed in the upper cross beam, and the small end of the cylinder body of the main cylinder is embedded into the through hole. The periphery of the upper cross beam is fixed in a small hole of the stepped hole; the cylinder body large end of the main cylinder is matched with the large hole of the stepped hole, and the upper side of the cylinder body large end can abut against the top of the large hole of the stepped hole; the abutting mechanism can jack up the main cylinder upwards. And the return cylinder is mounted on the main cylinder. The pressurizer is adopted to provide ultrahigh pressure, the use pressure is improved, the cylinder diameter of the main cylinder is reduced, and the device is more suitable for large-tonnage small table tops.
Owner:CHONGQING JIANGDONG MACHINERY

Brake master cylinder with novel cup pin structure

The utility model relates to a brake master pump with a novel cup pin structure, which comprises a pump body and an oil cup, an oil receiving port is arranged on the pump body, an oil receiving nozzle is arranged on the oil cup, the oil receiving nozzle is inserted into the oil receiving port, a connecting through hole is arranged on the oil cup, a connecting pin hole is arranged on the pump body, the oil cup is connected with the pump body through a cup pin, and the cup pin penetrates through the connecting through hole. The cup pin is matched with the connecting pin hole in a pin joint mode, the oil cup is provided with a front supporting foot and a rear supporting foot, the connecting through holes are formed in the front supporting foot and the rear supporting foot respectively, the connecting pin hole is located between the front supporting foot and the rear supporting foot, and the connecting pin hole and the connecting through hole form a pin joint channel. The oil cup and the pump body are fixedly connected and assembled through the cup pin joint structure, the cup pin and the connecting pin hole are through holes, machining is easy, the manufacturing cost is low, pin joint assembly is easy and convenient, various problems caused by the adoption of fastening screws, screw holes and the like are avoided, the machining cost is reduced, and the assembly structure is simplified. In addition, the structure of the cup pin is optimized, so that the cup pin is convenient to assemble and not easy to separate.
Owner:ZHEJIANG JISHANG AUTOMOBILE PARTS

Drawworks hydraulic brake performance assessment system

A drawworks brake performance assessment system (115, 215, 315) comprising a drawworks (116, 216, 316) comprising a rotatable spool (220, 320); a braking system comprising a rotor (232, 332) associated with the rotatable spool and at least one hydraulic disc brake (234,334) comprising a master cylinder assembly (236, 336) and a caliper assembly comprising a caliper (242, 342) and opposing brake pads, wherein the master cylinder assembly is operable with the caliper assembly to manipulate one of the opposing brake pads to apply a clamping force to the rotor; and a brake sensor system (160, 260, 360) comprising a sensor (264, 364) and an operations module (272, 372), the sensor being operable to measure a displacement distance between one of the opposing brake pads and a surface of the rotor, and to output corresponding sensor data to the operations module that is operable to receive and process the sensor data and to determine one or more performance characteristics of the braking system based on the sensor data.
Owner:NABORS DRILLING TECHNOLOGIES USA INC

Press-fitting limiting tool for elastic cylindrical pin of brake master cylinder

The utility model discloses a brake master cylinder elastic cylindrical pin press-fitting limiting tool which comprises a fixing plate, and a fixing base, a top limiting structure and a lateral limiting structure are fixed to the fixing plate. The top limiting structure is located on one side of the fixed base, and the lateral limiting structure is located on the other side of the fixed base. The fixed base comprises a first base, a fixed seat is fixed to the first base, a top groove is formed in the first base, a first limiting plate is arranged in the top groove, the lower end of the first limiting plate is located in the top groove, the upper end of the first limiting plate abuts against the fixed seat, and the upper end of the first limiting plate is fixed to the fixed seat through a bolt; one end of the fixing base abuts against the first limiting plate, a limiting groove is formed in the other end of the fixing base, a second limiting plate is fixed in the limiting groove, and the second limiting plate is parallel to the first limiting plate. The press fitting device is high in universality, can be suitable for press fitting of brake master cylinders of different models, and has the advantages of being simple in structure, ingenious in design and the like.
Owner:CHONGQING YUANJI AUTOMOBILE PARTS MFG CO LTD

High-sealing automobile brake master cylinder

The high-sealing automobile brake master pump comprises a pump body, an oil tank is fixedly arranged at the upper end of the pump body, a first piston and a second piston are arranged in the pump body, a first sealing chamber is formed between the first piston and the second piston, a push rod is arranged at the right end of the pump body, and the left end of the push rod is fixedly connected with the right end of the first piston; a first reset spring is arranged between the left end face of the first piston and the right end face of the second piston, a second reset spring is arranged on the left end face of the second piston, a third piston is arranged at the left end of the second reset spring, and a second sealing chamber is formed between the third piston and the second piston. A supercharging device is arranged at the left end of the pump body, a switch device is arranged at the right end of the pump body, an annular brush is arranged at the right end of the switch device, and when the push rod moves, dust and impurities attached to the outer surface of the push rod are brushed off through the annular brush. According to the technical scheme, the structure design is reasonable, output pressure is sufficient, braking performance is good, the dustproof effect is good, the service life is long, and practicability is good.
Owner:WENZHOU DONGQI AUTO PARTS MFG CO LTD

Brake master cylinder

The utility model provides a brake master cylinder, and belongs to the technical field of brake equipment. The problem that an existing brake master cylinder is low in continuous braking response speed is solved. The brake master pump comprises a pump body and a columnar piston, a concave hole is formed in the end portion of the inner end of the piston, a first side hole, a second side hole and a third side hole are formed in the side wall of the concave hole in the radial direction in a penetrating mode, and an oil supplementing spring, a cylindrical oil supplementing valve element, a pressure relief valve element and a pressure relief spring are sequentially arranged in the concave hole in the direction from a brake cavity to an oil inlet cavity. The pressure relief valve element can move under the elastic action of the pressure relief spring, the end, facing the pressure relief valve element, of the oil supplementing valve element is located between the first side hole and the second side hole, sealing is formed between the outer side of the end and the side wall of the concave hole, an annular protruding shoulder is further arranged on the inner wall of the concave hole, and the first side hole is located between the protruding shoulder and the second side hole. The oil supplementing valve element can abut against the convex shoulder under the elastic force effect of the oil supplementing spring to form sealing. The brake master cylinder has the advantage of high continuous brake response speed.
Owner:YUHUAN AOHENG MASCH CO LTD

Antilock brake system (ABS) module for vehicles with integrated DC-DC converter

The present invention relates to an anti-lock braking system (ABS) module (200) for a vehicle having an integrated DC-DC converter (114). The ABS module (200) comprises at least one pump (102) connectable to a brake master cylinder (104), at least one electric motor (106) for operating the at least one pump (102), at least one valve (108) in fluid communication with the at least one pump (102), and a control unit (110) powered by a main power supply (112) through the DC-DC converter (114) to operatively control the at least one electric motor (106) and the at least one valve (108), characterized in that the DC-DC converter (114) is integrated within the control unit (110). In an embodiment of the invention, the electric power supplied to the at least one electric motor (106) and the at least one valve (108) is through the DC-DC converter (114).
Owner:ROBERT BOSCH GMBH

Pressurizing brake master cylinder

The utility model provides a supercharging brake master cylinder, and belongs to the technical field of brake systems. The problem that the critical pressure of opening of an adjusting valve element in an existing supercharging brake master cylinder cannot be adjusted is solved. The pressurizing brake master pump comprises a pump body and a columnar piston, an inner cavity of the pump body is sequentially divided into a brake cavity, an oil supplementing cavity and an oil inlet cavity by the piston from inside to outside, and an axial hole communicated with the brake cavity is formed in the inner end of the piston in the axial direction. A first side hole communicated with the oil supplementing cavity and the axial hole and a second side hole communicated with the oil inlet cavity and the axial hole are formed in the side portion of the piston, a valve element and a spring are arranged in the axial hole, the axial hole penetrates through the piston, the inner side of the outer end of the piston is in threaded connection with an adjusting seat, and the two ends of the spring abut against the valve element and the adjusting seat respectively. The outer end of the adjusting base is provided with an adjusting groove used for allowing a tool to be inserted and driving the adjusting base to rotate in the circumferential direction. The supercharging brake master cylinder has the advantage of being convenient to adjust.
Owner:YUHUAN AOHENG MASCH CO LTD

Sensor fitting for a hydraulic brake system or clutch system

The present invention relates to a sensor assembly (100) for a hydraulic braking or clutch system, in particular of a handlebar-controlled vehicle, especially a bicycle. The sensor assembly (100) comprises: a lever (102) for actuating the sensor fitting (100) with a spring device receptacle (134), and an actuating means receptacle (132); a housing (106) in which a piston (114) is arranged to be slidable; a printing piece (104); an actuating device (138) with an actuating means (116) which is received in the actuating means receptacle (132); a spring assembly (158) which is received in the spring assembly receptacle (134); wherein a first end (166) of the spring assembly (150) is supported on the pressure piece (104) and a second end (162) of the spring assembly (158) is supported on the actuating means (116).
Owner:GUSTAV MAGENWIRTH GMBH & CO KG

Vehicle brake-by-wire mechanism

The utility model provides a vehicle brake-by-wire mechanism which enables a brake system to be high in integration degree, accurate in brake force and easy to control and install. The mechanism comprises a lead screw motor assembly, a spring assembly and a brake master cylinder assembly, the lead screw motor assembly comprises a lead screw motor, a motor support and a guide rail. The spring assembly comprises a spring upper end cover, a compression spring, an end cover, a piston and a spring base; the upper end cover of the spring is meshed on a screw rod of the screw rod motor and is limited to rotate through a guide rail mounted on the motor bracket, so that the upper end cover moves left and right on the screw rod; the compression spring is arranged between the spring upper end cover and the spring base and is compressed or restored according to the left-right movement of the spring upper end cover; the piston moves left and right in the cylinder body of the spring base and rubs with the inner wall of the cylinder body so as to reduce vibration of the spring in the braking process. The top of the spring base is provided with an end cover through a screw, piston installation is facilitated, and meanwhile the main cylinder is pulled reversely to release braking force.
Owner:BEIJING INST OF TECH

Part assembly tool

The utility model relates to the technical field of tools, and provides a part assembling tool which comprises a pipe body positioning seat, a pushing driving mechanism and a part positioning seat, and the pipe body positioning seat is used for bearing a pipe body; pushing driving mechanisms are arranged at the two ends of the pipe body positioning seat; a part positioning seat is arranged between the pipe body positioning seat and each pushing driving mechanism, part inserting holes are formed in the part positioning seats, the pipe bodies located on the pipe body positioning seats are used for being clamped between the part positioning seats at the two ends, and after the pushing driving mechanisms extend, the part inserting holes are formed in the part positioning seats. The push rod is used for pushing the part located in the part inserting hole to leave the part inserting hole and be inserted into the pipe body. By means of the technical scheme, the problems that in the production process of the brake master cylinder in the related technology, when parts need to be inserted into a pipe body, operation is generally completed manually by operators, time and labor are wasted, the labor intensity is large, and the working efficiency is low are solved.
Owner:HEBEI WEIFU TECH CO LTD

Hot forming equipment with side ejector rod

The invention discloses hot forming equipment with a side ejector rod. The hot forming equipment comprises a main machine frame, a hydraulic system, an upper heating platform, a furnace door assembly, a side ejector rod assembly, a lower heating platform and a hydraulic sliding block. The hydraulic system is mounted at the upper end of the host frame, and a hydraulic main cylinder of the hydraulic system extends to the middle of the host frame through a through hole in the upper end of the host frame and is connected with the hydraulic slider; the upper heating platform is in threaded connection with the hydraulic sliding block; the lower heating platform is screwed at the lower end of the host frame; the furnace door assembly is in threaded connection with four stand columns of the main machine frame. The side ejector rod assembly is installed on the furnace door assembly. According to the hot forming equipment with the side ejector rod, the side ejector rod is designed, so that the hot forming equipment can meet more process requirements, machined parts and molds can be movably positioned in the vertical direction and can also be movably positioned in the horizontal direction in the heating forming process, the functionality of the hot forming equipment is guaranteed, and the hot forming efficiency is improved. And on the premise that heating work is not stopped, the process diversity of the hot forming equipment is greatly improved.
Owner:BEIJING HANGXING MACHINERY MFG CO LTD