34results about How to "Uniform braking force" patented technology

The invention discloses a bidirectional compression type shoe gap adjuster, comprising a coupling head, a first cylinder, a second cylinder, a third cylinder and a hollow end cover which are connected in sequence; an adjusting nut is arranged inside the second cylinder, and a pull rod is arranged inside the first cylinder; a screw rod penetrates through the first cylinder, the second cylinder and the third cylinder; a first spring is sheathed on the pull rod, and a second spring is sheathed on the screw rod; one end of a operating lever is hinged on the coupling head, the lever body thereof penetrates through a lateral through hole of the coupling head and a transverse through hole of the pull rod simultaneously, and the other end of the operating lever is connected with a control lever through a control lever mounting hole. Besides, the control lever is used for adjusting the magnitude of force applied by first spring and the second spring on the adjusting nut; acted by the bidirectional force applied by the two springs, the adjusting nut moves between the first cylinder and the second cylinder and engages with or disengages from the two springs. The bidirectional compression type shoe gap adjuster is suitable for rail wagon brake devices, has a simple structure, and can adjust shoe gap automatically and precisely so as to provide even brake force for rail vehicles.

The invention relates to a rough-surface braking and linkage device and belongs to a power transmission device for machinery power, in particular to the braking or linkage device of machinery. The device consists of two working parts which are mutually separated; and the working surfaces of the two working parts are arranged opposite to each other. One working surface is provided with curved surfaces that are spaced in convex and concave arrangement; and the other working surface is provided with a roller. And a base of the working surface is connected with a telescopic pressure-cylinder push rod which is in a same axial direction with a rotary part. The invention has the advantages of simple structure, no wearing, no heating on the combined surface when braking or linkage and large transmission moment.

The invention discloses a mute trundle with a brake structure. The mute trundle comprises a trundle frame body, a trundle body is installed on the trundle frame body, a brake ring is arranged on the side wall of the trundle body, a plurality of swing assemblies are evenly distributed on the trundle frame body around the circle center of the brake ring, and elastic mechanisms are arranged on the swing assemblies. A brake pad is mounted on the elastic mechanism, a ring body mounting seat is arranged on the wheel carrier body, a rotating ring is mounted on the ring body mounting seat, a first hinge end is arranged on one side of each swing assembly, and a plurality of second hinge ends with the same number as the swing assemblies are evenly distributed on the rotating ring around the center circumference of the rotating ring. By means of the structure, braking stress of the trundle can be even, damage caused by too large stress of part of the trundle is prevented, meanwhile, remote control of the power mechanism can be controlled, rapid braking can be achieved in emergency situations, noise generated between the brake pad and the brake ring is reduced after braking, noise pollution is reduced, and troubles to people are reduced.

A brake for the shuttle of circular loom is composed of base, axle fixed to base, spring installed to axle, supporter and dual-surface ox leather fixed to the top end of said supporter. Its advantages are convenient exchange and high braking effect.

The invention relates to the field of power transmission and distribution facilities, in particular to an integrated adjustable locking wire pulling device. The integrated adjustable locking wire pulling device comprises a base and a winding roller rotationally matched on the base; a first connecting part used for being detachably connected with the ground is assembled on the base; a rope is wound around the winding roller, a second connecting part is installed at the outer end of the rope, the second connecting part is used for being detachably connected with a to-be-installed part on an electric pole/iron tower, and the height of the to-be-installed part on the electric pole/iron tower is larger than the height of the installation position of the first connecting part and the ground; and the integrated adjustable locking wire pulling device further comprises a brake assembly, and the brake assembly is used for locking and unlocking rotation of the winding roller in the rope unwinding direction. By the adoption of the scheme, the length of a temporary stay wire can be conveniently adjusted so as to meet the requirements for stay wires with different lengths in the construction process, and due to the fact that the integrated adjustable locking wire pulling device can be detachably connected with the ground and the electric pole/iron tower, recycling of the integrated adjustable locking wire pulling device is facilitated.

The invention relates to the technical field of braking equipment, and discloses a self-adjusting drum brake comprising a braking base plate assembled on an automobile chassis, two brake shoes symmetrically mounted on the base plate, brake pads assembled on the outer sides of the brake shoes, a brake drum assembled on an automobile hub, a parking lever hinged to the corresponding brake shoe, and aparking pull wire connected with the parking lever. Connecting blocks are connected to the inner sides of the two brake shoes. The displacement of a positioning sliding block changes the angle of adjusting arms so that supporting arms expands the brake shoes on the two sides, and thus adjustment of fit clearance is completed. The force strength is high, slipping is avoided, thus the adjustment sensitivity of the fit clearance is improved to enable the fit clearance value to be maintained within the optimal reasonable range, so that the braking performance of an automobile is kept in the bestcondition, the braking performance of the automobile equipped with the self-adjusting drum brake is maintained within the optimal range all the time while driving safety is improved, it is ensured that hub braking force on the two sides is balanced during high-speed emergency braking of the automobile, and accordingly braking safety of the automobile is improved.

For the yarn that is prone to falling off, the falling off can be released, so that the braking force can be reliably applied to the yarn. The braking surface of at least one of the brake main body and the brake pad of the brake device includes the top surface of the plurality of protrusions formed on at least one of the brake main body and the brake pad. The convex portion extends in a direction transverse to the running direction of the yarn, and at least one is formed on one of the upstream side and the downstream side of the above-mentioned running direction from the center of the brake main body or the brake plate, and a plurality of them are formed on the other side. .

The invention provides a pair of elevator safety tongs with a high safety performance. The pair of elevator safety tongs with the high safety performance comprises a tong seat, a U-shaped spring arranged in the tong seat, two groups of oscillating type clamping mechanisms symmetrically arranged in the U-shaped spring, and a lifting mechanism connected onto the two groups of oscillating type clamping mechanisms. An opening for an elevator guide rail to pass through between the two groups of oscillating type clamping mechanisms is formed in the tong seat; and the two groups of oscillating type clamping mechanisms provides an inward pressing force through the U-shaped ring. According to the pair of elevator safety tongs with the high safety performance provided by the invention, a structure that the two groups of oscillating type clamping mechanisms are symmetrically arranged in the tong seat is adopted, so that when major failures such as overspeed and rope breakage occur on an elevator,clamping blocks of the oscillating type clamping mechanisms oscillate upwards relative to guiding blocks so as to clamp the elevator guide rail, the problem that wear is easy to cause due to direct sliding contact of the guiding blocks and wedge-shaped blocks in the prior art is effectively solved, the service life is long, a braking force is transferred to the clamping blocks through oscillatingarms arranged reasonably so as to be effectively ensured to be balanced, clamping surfaces always tightly fit to an outer side surface of the elevator guide rail, and a braking effect is good.

The invention relates to a disc brake and a vehicle. The brake comprises a brake caliper body, a first brake block, a brake disc, a motor, a lead screw mechanism, a cross arm, a first piston and a second piston, wherein the cross arm can axially move and is fixed in the brake caliper body; the lead screw mechanism comprises a lead screw and a nut; the nut is fixed to the cross arm; one end of thelead screw extends into the brake caliper body and is in threaded fit with the nut; the first piston and the second piston are symmetrically arranged on the side, away from the nut, of the cross arm with respect to the central axis of the first brake block; and the motor is used for driving the lead screw to rotate, so that the nut pushes the cross arm to move in the axial direction of the lead screw, and the first piston and the second piston jointly push the first brake block to move so as to press the brake disc. According to the technical scheme, the first piston and the second piston jointly push the first brake block, so that the first brake block is uniform in stress distribution and can be in uniform contact with the brake disc, the brake stability is improved, and rapid abrasion of the first brake block can be prevented.

The present invention relates to a casing brake assembly for applying a frictional force to a tubular or bag-shaped packaging casing being arranged on a filling tube of an apparatus for filling and closing said tubular or bag-shaped packaging casing, like a clipping machine, for limiting the movement of said tubular or bag-shaped packaging casing at least while being filled, the filling tube has a longitudinal axis. The casing brake assembly comprises at least one braking body which is reversibly movable between a release position, in which the braking body is at least partially moved away from the filling tube and a brake position in which the braking body at least approximately completely surrounds the filling tube, and which comprises at least two free ends. The casing brake assembly further comprises at least two support elements for supporting and reversibly moving the at least one braking body.