Disk brake with lock fixing movement converting cartridge

FIELD: transport.

SUBSTANCE: invention relates to the automotive industry, particularly, to disk brakes of vehicles. The disc brake comprises a floating clamp, a brake piston driven by a motion converter cartridge, the rear part of the latter being thrust against the bottom of a seat made in the said clamp for the cartridge and including a control shaft extending through the seat bottom. The front part of the cartridge rests against the brake piston. The named part of the cartridge includes a pusher fitted with a disk interacting with a control shaft disk by means of balls located between disks with a possibility of rolling along the paths designed as inclined surfaces for the conversion of the rotary motion of one disk with reference to another into the translational movement of the pusher. The cartridge is locked in its seat by a yoke resiliently pressed against the seat wall. The pusher disk has longitudinal grooves interacting with lock cores and thus holding the pusher from rollover with ensuring freedom of its translational movement.

EFFECT: simplification of fabrication of the brake bracket due to minimising of the quantity of parts of the movement conversion cartridge is achieved.

7 cl, 12 dwg

 

The technical field to which the invention relates.

The invention relates to a disk brake, contains floating bracket covering the brake disc, provided with a stationary pad and forming a cylinder in which is located the brake piston, provided with a movable block and advanced to compress the brake disk, and:

- brake piston is actuated by a hydraulic actuator and the Parking brake system acting on the brake piston by means of transforming the movement of the cartridge (the motion Converter), which converts the movement of rotation located on the bracket of the brake lever in the forward movement of the brake piston,

the cylinder has a front part in which is located the brake piston, and a rear portion forming a socket in which is transforming the movement of the cartridge having an axisymmetric shape and adjacent to the movable block and the bottom of the cylinder,

cartridge hermetically passed through the axial hole made in the bottom of the cylinder, for connecting its shaft control lever Parking brake.

The level of technology

Such a disc brake is known and described in the publication EP 1936227. This publication relates in particular to a method of Assembly of the disk brake, in particular, Assembly converts the movement of the cartridge, which is converts rotational movement of the brake lever in the forward movement of the brake piston to turn off or deactivate the Parking brake.

In the known construction the rear part of the cartridge contains a pin mounted in the slot in the bottom of the slot, intended for installation of the cartridge in the cylinder bracket brake. This design is relatively complicated to manufacture and installation, and the pin when the Parking brake is exposed to significant torque forces.

More decision on the publication EP 1936227 shown in Fig.1, which shows the cylinder 300 disc brakes, which is not shown in the drawing, the piston driving Shoe brakes. The piston is actuated by the brake fluid pressure supplied to formed in the cylinder 300 camera 301. The camera 301 is also transforming the movement of the cartridge 310, converts the moving body control Parking brake motion compression brake disc. The cartridge 310 is located in the continuation of 302 cylinder 300 and tightly put through the hole 304 in the bottom 303 302 continue cylinder for connection to a cartridge outside of the Parking brake lever associated with body control Parking brake. The turning movement of the lever translates the cartridge in the forward movement of the piston is mechanically communicated to him by the plunger of the cartridge, which, in turn, compensates for wear of the brake pads.

On the component from which the image, shown in Fig.2 shows the construction of the known cartridge 310, consisting of a support 311, Cup-ended sleeve 312 and is equipped with a pin 313 to lock from turning.

In support 311 is the top gear axis 314, provided with a disk 315, under which is placed a washer 316, allowing the disk 315 when it is turned to slide relative to the bottom support 311; gear axis 314, relying on the sleeve 312, exits through the bottom of the continuing 302 of the cylinder for connection to Parking brake lever.

From the front side in the disk 315 is made of a groove of variable depth, interacting with balls 317 held by the holder 318. Balls 317 also interact with another disk 319, in which you have grooves corresponding to the grooves in the disk 315. On disk 319 there are speakers in the side part 320 included in the notches 321, made in support 311 to hold the disk 319 from turning, while leaving him the freedom of translational motion and directing its movement along the axis of the Chuck 310.

Disk 319 moves the plunger 322 converts the movement of the cartridge, which acts on the piston brakes.

Collected in the node details 311-322 held by the holder 323, and between these parts and the holder is spring 324 compression. The holder 323 is attached to the support 311 and on it sits a spring holder 325 for attaching the cartridge 310 in which Neste, formed by the continuation of 302 cylinder; then in a blind hole 305 in the bottom 303 302 continue cylinder set pin 313 to lock the rear part which converts the movement of the cartridge 310 from turning, as discussed above.

The objective of the invention

The task underlying the present invention is to simplify the manufacture of the bracket brakes, reducing the number of parts in the composition converts the movement of the cartridge, and to reduce the cost of manufacturing and installation brackets.

Disclosure of the invention and its advantages

To this end offered a disc brake of the type specified above, characterized in that converts the movement of the cartridge (transducer motion) is:

- back, resting in the bottom slot of the cylinder and includes:

- lock to lock from turning, made in the form of a ring, which rests on the bottom of the socket around is made in the bottom of the axial bore and which is at least one rod with a cylindrical lateral surface, directed forward parallel to the axis of the Chuck, and

a control shaft connected to the Parking brake lever and consisting of a sleeve passing through the ring, and disk located in front of the ring within the perimeter defined by the rod of the castle, and the disc is on the front sides of the inclined surface;

- the front part, rests on the brake piston is installed with the possibility of translational movement relative to the cylinder, but are fixed against turning, and includes:

- plunger, is provided (second) disk interacting with the (first) drive shaft control by moving balls located between the sloping surfaces of the two disks, for converting the relative rotational motion between the two disks in the forward movement of the pusher for influencing the brake piston and the edge of the second disc is made of at least one axial groove, which in interaction with placed in it a rod lock locks the plunger from turning,

- ring (casing) that is holding the plunger in the cylinder by a spring holder, and

- return spring located between the yoke and the plunger for resisting forward movement created by the disks and balls;

and the fact that the cylinder at its rear end forming a socket for transforming the movement of the cartridge has at least one longitudinal groove accommodating the rod of lock that the other site is a part of the axial groove of the second disk.

Thus, the retention of the plunger, i.e., the movable nut converts the movement of the Chuck from turning (Phi is sacia rotation) is achieved directly by the bracket, and converts the movement of the cartridge, is provided with a lock installed in the rear of transforming the movement of the cartridge, i.e., in its rear part, for locking the plunger from turning, and the lock is locked from turning due to its pairing with the slots of the socket bracket.

Accordingly, a significant advantage of the invention is the exception to the design of the rear casing of the cartridge, and a pin mounted in a hole in the bottom bracket of the rear holder from turning. This casing or yoke rear part of the cartridge is replaced with a simple back support formed by the castle. The exception cage rear improves the ability of the braking system to drain the brake fluid, as proposed in the invention converts the movement of the cartridge does not contain any components with closed cavities. It also simplifies the manufacture of the shroud and reduces the length of the cylinder, or the notches in the bracket in which is located the bullet.

The invention simplifies the Assembly of the cartridge, which is conducted in the framework of the technological process of Assembly of the brake, eliminating the use of special equipment to receive the cartridge Assembly. The clip is not already latched on the back of the Chuck body, which eliminates the risk of the formation of burrs.

Finally, the invention can be implemented in relation to the pistons or plungers of smaller diameter than the Oia with pistons or plungers, currently in use, at a constant generated by their efforts.

In a preferred embodiment of the invention:

- chamber cartridge in the bracket and the drive of the pusher having three longitudinal groove

the castle has three longitudinal rod,

the grooves are evenly distributed around the circumference, i.e., are arranged at equal angular distances from each other and are located opposite each other, and the rods are respectively the location of the slots and are included in the corresponding longitudinal groove of the socket and into the corresponding groove of the disk drive pusher.

These three longitudinal groove made in the slot of the bracket, and the drive of the pusher, in collaboration with three longitudinal rods of the castle perfectly keep the plunger from turning, while allowing you to avoid the problems associated with considerable torque that can be applied to the plunger by means made in the form of a ball transfer connection between the disks. This excellent fixation from turning also favors the reverse movement of the pusher when you turn off the Parking brake.

In another preferred variant of the invention, the lock consists of a ring of three longitudinal bars located on the ring parallel to the axis of the Chuck, and a sleeve projecting out of the ring with the opposite crucial the pits side and partially passing through the bottom slot of the cylinder, moreover, the focus ring in the bottom of the socket around is made in the bottom of the axial bore creates a support for the drive shaft of the control.

In this embodiment, the lock ensures the balancing of forces, as transmitted by the transducer motion of the castle, and passed the lock on the socket bracket, simultaneously performing the function of a bearing support for the rear part of the inverter movement, i.e. to the drive shaft control. This detail is especially simple to manufacture, and because when it is locked between the plunger and the socket brackets, exposed to only a very small cutting efforts, this detail is easily made from plastic.

Power perceived by the rods of the castle and then sent to the socket clips distributed on the surfaces of large area, resulting in concentrated forces, and hence the contact stresses are low. This is especially important for the longevity of this part and all of the disk brake Assembly.

In another preferred variant of the invention, the longitudinal groove of the socket has the contour of the cross section in the shape of an arc of a circle, and the rod of the castle has a rectangular cross section, one side of which is curved in an arc, the radius of which is essentially equal to the radius of the arc of the groove into which the rod passes at least part of the cross-section et the th slot. The slots and tabs of this form is very simple in manufacture, in particular with regard to the execution of each groove by mechanical processing.

Curved shape mating with each other, are forms of arcs of circles, homothetic with respect to each other and having the same center of curvature, which allows to take into account the differences, however small that may exist between the inner surface of the groove of the socket and the outer surface of the rod.

In this context, another preferred embodiment of the invention provides for the presence of the disk drive pusher at least one groove of rectangular cross-section.

Thus, each rod lock has a generally rectangular cross section with two straight sides and two opposing curved sides, one of which is convex and facing the groove slot of the bracket, and the other is concave and repeats the convex shape of the bottom of the return groove in the disk pusher.

In fact, the groove in the bracket and a corresponding, i.e., opposite him, the notch in the disk drive pusher complement each other, forming a slot of a corresponding rod of the castle. Since the drive of the pusher is installed with the possibility of translational movement along the rods of the castle, running lateral sides of each PA is in the drive of the pusher in the form of flat surfaces, which are either parallel to the axis of the median plane of the rod, or oriented along radii passing through the axis of the slot in the bracket, is appropriate.

The bottom of the groove in the drive of the pusher may be flat, and then the corresponding rod side of the castle will be flat. This facilitates the manufacture of either the mold or molds, or groove, by means of mechanical processing, if such machining is performed directly on the disk pusher.

The length of the longitudinal protrusion, which is, therefore, oblong execution is the rod (crest), especially when there are multiple longitudinal ribs, which preferably is three, perfectly provides the direction of movement of the plunger, i.e. the smoothness of the forward movement, and fixation (from turning) of the pusher in the bracket. Rods, bent forward, allow to reduce the axial length of transforming the movement of the cartridge, and not to the detriment of the quality of the direction of movement of the pusher.

In yet another preferred embodiment of the invention the nest cartridge has a shelf made to stop him contour of the shroud, and a circumferential groove, made under the spring holder.

In yet another preferred embodiment of the invention the clip is a product made is of an elastic steel, made generally conical shape and having a base in the form of a ring, from which emerge the petals, United with a split rim, and an intermediate petals having free ends and mating with spring holder.

Such holder and its interaction with one hand, with the ledge, and on the other hand, with the County groove in which is located a spring holder, provide excellent stopping converts the movement of the cartridge in its slot by a geometric circuit and rigid attachment of the cartridge to the housing bracket. This stopper can not open spontaneously. To open it you will need a special tool, such as a sleeve acting on the ferrule conical shape for the gradual release of petals clip that allows movement back to take the rim and release it from the groove. Installation is carried out in the same conditions by performing actions in reverse order.

In General, disc brake equipped with such a transformative movement cartridge, easy to manufacture and assemble due to the small number of parts. The invention provides an excellent functioning brakes and ensures its reliability.

Brief description of drawings

Below the present invention is explained in more detail with reference to the accompanying drawings on which is shown:

in Fig.1 is a view in continue the nom cut the cylinder disc brakes, equipped converts the movement of the cartridge known from the prior art,

in Fig.2 - exploded view converts the movement of the cartridge shown in Fig.1,

in Fig.3 is a schematic longitudinal section of the bracket brake cover brake disc, brake piston, but without converting the motion of the cartridge,

in Fig.4A, 4B or two made at various angles of view in the perspective proposed in the invention converts the movement of the Chuck,

in Fig.5 is a view in longitudinal section of the cylinder brackets proposed in the invention of the brake showing in the negative shape of the internal volume of the cylinder bracket brake

in Fig.6A, 6B is made in two different angles of view in perspective of the castle, holding the transformative movement of the Chuck from turning,

in Fig.7 is a schematic view in plan of the castle that is installed in the bracket,

in Fig.7A is a detail view of the rod of the lock shown in Fig.7,

in Fig.7B is a detail view of the castle at the level of the axial groove,

in Fig.8 is a perspective view of the pusher.

The implementation of the invention

To simplify the description proposed in the invention of the disk brake as longitudinal orientation adopted the axial direction along the axis x-x shown in Fig.3, and to the left in the drawing is the front side, and the right - rear side, so that timesnowonline 5 front side face to the brake Shoe 4, and back to the slot 113 in the bracket 100. Similarly, the front part which converts the movement of the cartridge is on the side of the brake piston, and the back - side of the bottom of its slot in the bracket.

As shown in Fig.3, the object of the invention is a disk brake 1, associated with the hydraulic brake system and the control system Parking brake. Floating bracket 100 covers the brake disc 2 and is provided with a fixed block 3 and the movable block 4, i.e., is the backbone for these pads. The movable block moves the brake piston 5 located in the cylinder (or the housing 110 of the bracket 100. The cylinder 110 restricts hermetically isolated chamber 111 connected via inlet 112 to the circuit of the brake system, not shown. In this hermetically isolated chamber 111 is also transforming the movement of the cartridge 200 (Fig.4A, 4B), resting in the bottom 114 of the slot 113 in the cylinder bracket. A slot 113 is a continuation of the cylinder 110. In the bottom 114 nests made the hole 115 through which hermetically displayed end of the cartridge 200 for providing transmission of motion connection with the lever 120 of the Parking brake, which is connected with the governing body Parking brake and rotational motion (rotation) which is converted into reciprocating movement transmitted to the brake parsing.

Converts the movement of the cartridge 200 shown in Fig.4A, 4B, includes a shaft 210 control connected to the Parking brake lever, perceiving the movement of the body control Parking brake, the holder 220, the retaining balls, castle 230 to lock from turning, the pusher 240 converts the movement of the cartridge, the spring 250 is compressed and the clip 260 is mounted on the transformative movement of the cartridge 200 in the collection and allows you to fasten it in the slot 113, locking the cartridge from translational movement by means of a spring clip 201.

The cartridge 200, namely its follower is prevented from turning in the socket 113 lock 230, rods 233 are rigidly fixed in the corresponding grooves 119 made in the wall of the slot 113. Part of the transformative movement of the cartridge, with the exception of the pusher 240, fixed against translational movement pressed against the ledge 117 clip 260 and unclenched her spring holder 201. The cartridge 200 has a lock 230 to lock from turning, consisting of rings 231, protruding from his back sleeve 232 and projecting from the forward rod 233. This castle 230 surrounds, or accommodates, mounted to rotate a shaft 210 control formed by a cylindrical sleeve 211, located rotatably in the sleeve 232 of the lock and provided with a drive (first drive) 212, which Sarug the adjacent ring 231 of the lock 230. For sleeve 232 is a ring 214 seal, providing leak-proof installation sleeve 232 in the hole 15. Sleeve shaft 211 210 control passes through the stepped portion of the hole 115 (this part is not shown) or stick out. At the end of the shaft has a profile 213, in particular a toothed profile for mounting a brake lever associated with the governing body handbrake.

Front of ring is provided ferrule 220 with balls located between the disk 212 and the disk 242 and forming thus a tool to convert rotation of the shaft 210 in the forward movement of the pusher 240. In practice, the front surface of the first disk 212 and the rear surface of the second disk 242 is made of a groove of variable depth. These grooves correspond to each other and combined in pairs to accommodate the balls held by the holder 220, so that the rotation of the disc 212 (having freedom of rotation) relative to the disk 242 (fixed from rotation) caused the translational movement of the disc 242, and hence the pusher 240.

The disk 242 has an axial grooves 243, which are rods 233 castle 230, and thus communicates with the rods 233, with no possibility of rotation relative to them, but at the same time having the opportunity slip them relatively in the axial direction, i.e. in the direction of the axis of the Chuck. As it is to have the rods 233 fixed in the grooves 119 of the slot 113 in the bracket 100, the second disk 242 thereby locked from turning.

The plunger 240 converts the movement of the cartridge continues forward sleeve 241, has an internal thread 245 with the formation of the nuts used to compensate for wear of the brake pads by theoretically irreversible rotation mechanism, which is in itself known and is not discussed here.

In Fig.5 in the negative shows the shape of the internal volume of the bracket 100 on the level of the cylinder 110 and the slot 113 with axial grooves 119 and the opening 115 in the bottom 114 of the slot 113. The ledge 117 serves as a surface for the lock ring for the district groove 118 in which is located a spring holder 201.

In Fig.6A, 6B shown in the isometric orientation lock 230, shown in two different views. Castle 230 consists of a ring 231, which is parallel to the axis X-X are the rods 233c cylindrical surface and which continues serving back sleeve 232. Cross-sectional shape of the clamping rods 233 castle can be compared with a curved rectangle, large inside 233a which is angled inwards towards the axis X-X, has a radius of curvature extending from the axis X-X, and most of the outer side 233c which mates with the wall of the corresponding groove 119 and has a very pronounced curvature. Curved side 233a, 233c are connected with straight sides 233b, 233d, the landmark is a private radially or parallel to the radial direction, passing through the middle of the cross-section of the corresponding terminal. The rods 233, the number of which is equal to three, evenly distributed around the circumference of the ring, i.e., are arranged at equal angular distances from each other.

In Fig.7 shows the end view of the transducer movement in the state, when his castle 230 and the pusher 240 is installed in the slot 113 of the bracket 100, and the drawing is visible in the form of a groove 119 in the slot 113, the shape of the rod 233 castle 230 and the shape of the groove 243 in the ROM 242 of the pusher 240.

As noted above, the fixing of the transducer movement in the bracket is provided with a lock 230, in this case, three rod from which to simplify the drawing only shows two.

The rods 233 have a cylindrical surface, oriented in the axial direction, parallel to the axis X-X, and curved rectangular cross-section, consistent with the shape of the groove 119 of the bracket, and the shape of the groove in the disk 242 pusher 240.

The groove 119 is the contour of the cross section in the shape of an arc of a circle, the radius of which is smaller than the radius of the slot 113. Part of the rod 233, a member of the slot 119, has the contour of the cross section in the shape of an arc of a circle, forming a rounded side 233a of the cross-section of the rod with identical, or more precisely homothetic, the radius extending from the same center of curvature as the radius of the groove 119.

Side 233b and 233d rod was rectilinear in cross-section, ie, flat, and parallel to the median plane of the rod 233 passing through the axis X-X. the Parties 233b, 233d can also be flat and can be oriented radially, i.e., can pass through the axis X-X. This option is not shown.

The cross-section of the rod 233 is beyond the contour of the ring 231 is not only a party 233a, but also partly by the parties 233b, 233d. The fourth side 233c shown in the drawing curved. It can also be rectilinear in cross-section, i.e., flat.

Rod 233 fixed in the groove 119, directs the translational movement of the ring 242, in which the rod is side 233c and part of their parties 233b, 233d.

The groove 243 has a cross-section corresponding to the cross section of the rod 233. The cross-sectional shape of the groove 243 is U-shaped, with the sides 243b, 243d of the groove 243 correspond to the sides 233b, 233d rod 233 and the bottom of the form 243c of the groove 243 corresponds to the shape of the face 233c rod 233; in this example, the side 233c is made curved, for example along the arc of a circle centered on the axis X-X; not shown in the drawings, the embodiment of the invention the bottom 243c of the groove may be rectilinear in cross-section, and the side 233c of the rod in this case is straightforward, making it easier to perform groove 243 the method of machining, if the PA is not formed in the process of injection molding. Detail the shape of a rod 233 and groove 243 is shown in Fig.7A and 7B.

In Fig.8 shows an isometric projection of the pusher 240 having the disk 242, a rear surface, provided with grooves of variable depth, the drawing is not visible (the grooves of variable depth in themselves known) and in which there are notches 243, performed throughout the thickness of the disk 242 for receiving rods 233, as described above. The disk 242 continues forward cylindrical sleeve 241, which is outside of a spring 250 compression (Fig.4A, 4B) and the front end of which has an internal thread 245 for automatic wear compensation.

In the rear surface of the disc 242 of the plunger 240 is made of a groove of variable depth, complementing its location and shape of the grooves of variable depth (not visible) in the first disk 212 of the shaft 210 of the control. Rolling placed in the cage of balls equal in number to, for example, three, matching the grooves of the disk 212 of the shaft 210 and control disk 242 pusher 240 rotational movement of the drive shaft 212 210 control is converted into reciprocating movement of the pusher 240 through additional interaction of the inclined surfaces formed by the grooves, as is in itself known. On the cylindrical sleeve 241 pusher mounted return spring 250 compression, rests with the one from the pile, in the ROM 242, and on the other hand - in the base 261 of the shroud 260, also mounted on the sleeve 241 of the pusher 240.

The clip 260 is a product made of elastic steel, made in a generally conical shape and having a front ring that forms the basis of 261 from which emerge the petals 262 connected in pairs with the two parts of the split facing outward flanges 263 and intermediate lobes 264 having free ends. Spring holder 201 is installed in the holder 260 petals around 262, 264 and between them in order to keep the Converter 200 of the movement in its socket 113, made in the bracket 100. To install the clip split the rim 263 and a spring holder 201 in a known manner squeeze through a tool in the form of a sleeve. Spring holder 201 holds the clip 260, interacting with the wall of the circumferential groove 118, and the split rim 263 is placed in the slot 113 to rest on the ledge 117 in the bracket 100, as provided by the build process described in the publication EP 1936227 that the above link. Thus, the cartridge 200 is held in its socket 113 from moving in one direction due to the emphasis slotted flanges 263 in step 117, and from the offset in the opposite direction by a spring holder 201 is fixed in the circumferential groove 118, so that the freedom of movement have only the shaft 210 of the management and the pusher 240.

In a sense the barely 240 (Fig.7) made one or more longitudinal grooves 243, providing fixation of the follower from turning in the socket 113 and the freedom of translational movement of the pusher. The rods 233 cover, or cover, the rear part of the cartridge at the level of the edge of the disk 212 and the disk, forming a ring which is placed in the balls and which is also held (radial offset) rods, which is important for manufacturing Assembly, which is transforming the movement of the cartridge, and greatly facilitates the installation of the cartridge in the slot 113.

After installing the cartridge 200, the shaft 210 of the control and drive 212 have a rotational degree of freedom, so that rotary motion of the shaft 210 of the control leads to a rotation of its drive 212 relative to the disk 242, combined with the pusher 240, causing the pusher 240 is reported translational movement transmitted to the brake piston 5.

The plunger 240 converts the movement of the cartridge adjacent to the back of the brake piston 5 by means not shown in the drawing, the wear of the brake pads, located in the plunger 240 and forms a nut as the threaded element of the pair having an internal thread. Compensation for wear of the brake pads is known to the specialist, by extension nuts when released the Parking brake.

The cartridge 200 is composed of a small number of parts and is a prefix will is Ino the assembled host, ready to install in the groove (slot) in the bracket brake 100. Such installation of the cartridge does not preclude the subsequent installation of a brake piston and not difficult, and does not violate subsequently draining the fluid from the braking system.

The present invention relates to disc brakes of motor vehicles.

A list of reference designations

1 Disc brake

2 Brake disc

3 Fixed block

4 Movable block

5 Brake piston

17 Circumferential groove in the socket

100 Bracket

110 Cylinder

111 Piston camera

112 Supply

113 Jack

114 the bottom of the nest

115 a hole in the bottom of the nest

117 Ledge

118 Circumferential groove

119 Longitudinal groove

120 Parking brake Lever

200 Converts the movement of the cartridge (transducer motion)

201 Spring holder

210 Shaft control

211 Cylindrical sleeve

212 the First disk

213 Profile

214 Ring seal

220 Clip

230 Lock to lock from turning

231 Ring

232 Sleeve

233 the Locking rod

233a Side of the rod 233

233b Side of the rod 233

233c Side of the rod 233

233d Side of the rod 233

240 Pusher converts the movement of the Chuck

241 Sleeve

242 the Second disk

243 Axial fixing groove

243b Side groove 243

243c Hundred is it groove 243

243d Side groove 243

245 Nut

250 Return spring

260 Clip

261 Base

262 Petal

263 Split rim

264 Intermediate petal

300 Cylinder

301 Luggage

302 Continuation of cylinder

304 a hole in the bottom 303 of the Bottom

305 Blind hole

310 Converts the movement of the Chuck

311 Bearing

312 Sleeve

313 Pin

314 Transmission axis

315

316 Washer

317 Balls

318 Clip

319

320 Protruding portion

321 Neckline

322 Pusher converts the movement of the Chuck

323 Clip

324 compression Spring

1. Disc brake, contains floating bracket (100), covering the brake disc (2) with fixed nuts (3) and forming a cylinder (110), which is the brake piston (5), provided with a movable block (4) and advanced to compress the brake disk, and:
- brake piston (5) is driven by the hydraulic drive and the Parking brake system acting on the brake piston by means of transforming the movement of the cartridge (200), which converts the movement of rotation located on the bracket (100) of the lever (120) Parking brake in the forward movement of the brake piston (5),
- cylinder (110) has a front part in which is located the brake piston (5), and the posterior portion forming the slot (113), which is pre brazowy movement of the cartridge (200), having an axisymmetric shape and attached to the moving block (4) and the bottom of the cylinder,
cartridge (200) hermetically passed through the axial hole (115) made in the bottom (114) of the cylinder for connection of its control shaft with lever (120) Parking brake
characterized in that:
A) transforming the movement of the cartridge (200) is:
- back, resting in the bottom (114) of the slot (113) of the vehicle and includes:
castle (230) to lock from turning, made in the form of a ring (231), which rests on the bottom of the slot (113) made around in the bottom of the axial bore (115) and which is at least one rod (233) with a cylindrical lateral surface, directed forward parallel to the axis of the Chuck, and
the shaft (210) control connected to the Parking brake lever and consisting of a sleeve (211) through the ring (231), and disk (212) located in front of the ring (231) within the perimeter defined by the rod (233) of the castle, and the disk (212) has on the front side sloping surface;
- the front part, rests on the brake piston (5) that is installed with the possibility of translational movement relative to the cylinder (110), but recorded from turning and includes:
- the pusher (240), supplied (second) disk (242) interacting with (first) disk (212) of the shaft (210) management posredstvennyh balls located between the sloping surfaces of the two disks (212, 242), for converting the relative rotational motion between the two disks (212, 242) in the forward movement of the pusher (240) for influencing the brake piston (5), and the edge of the second disk (242) completed at least one axial groove (243), which in cooperation with placed in it a rod (233) castle (230) fixes the plunger from turning,
- clip (260) holding the pusher (240) in the cylinder (110) by means of a spring clip (211), and
- return spring (250) located between the yoke and the plunger (240) to counteract the forward movement created by the disks (212, 242) and balls;
B) cylinder (110) at its rear end forming a slot (113) for converting the movement of the cartridge (200) has at least one longitudinal groove (119), enclosing the rod (233) castle (230) that the other site is a part of the axial groove (243) of the second disk (242).

2. Disc brake on p. 1, characterized in that:
- the slot (113) of the cartridge (200) in the bracket (100) and the drive (242) of the pusher (240) having three longitudinal groove (119, 243),
castle (230) has three longitudinal rod (233),
- grooves (119, 243) evenly distributed around the circumference and are arranged opposite each other, and rods (233) are respectively the location of the grooves (119, 243) and included in the appropriate food the capacity groove (119) of the slot (113), and in a corresponding groove (243) disk (242) of the pusher (240).

3. Disc brake on PP.1 and 2, characterized in that the lock (230) consists of a ring (231), three longitudinal rods (233), located on the ring parallel to the axis of the Chuck and sleeve (232), protruding from the ring (231) with opposite rods (233) side and partially passing through the bottom of the slot (113) of the cylinder (110), and the focus ring (231) in the bottom of the slot (113) made around in the bottom of the axial bore (115) creates a support disk (212) of the shaft (210) management.

4. Disc brake on p. 1, characterized in that a longitudinal groove (119) of the slot (113) has the contour of the cross section in the shape of an arc of a circle, and the rod (233) of the castle has a rectangular cross section, one side of which is curved in an arc, the radius of which is essentially equal to the radius of the arc of the groove, in which the rod (233) passes through at least part of the cross-section of the groove (119).

5. Disc brake on p. 1, characterized in that the disk (242) of the pusher (240) has at least one groove (243) of rectangular cross-section.

6. Disc brake on p. 1, characterized in that the slot (113) of the cartridge (200) has a ledge (117) made to stop him contour (263) clip (260), and a circumferential groove (118), made under the spring holder (201).

7. Disc brake on p. 1, characterized in that the ferrule (260) is a product made from progay steel made generally conical shape and having a base (261) in the form of a ring, from which emerge the petals (262), United with split rim (263), and intermediate lobes (264) having free ends and mating with a spring holder (201).



 

Same patents:

FIELD: transport.

SUBSTANCE: disc brake comprises floating clamp, brake piston driven by motion converter cartridge rear part of the latter being thrust against the bottom of seat made in said clamp for cartridge and including control shaft extending through seat bottom. Cartridge is locked by yoke resiliently pressed against sear wall. Cartridge pusher has lengthwise ledges composed of rods fitted in seat lengthwise slots. Anti-strain device is arranged between pusher rods and clamp seat slots. This device comprises ring with lugs distributed in circle in compliance with arrangement of rods. Said lugs have cylindrical tabs bent as said lengthwise ledges to lock the pusher and to allow its translation.

EFFECT: simplified production of brake clamp.

8 cl, 10 dwg

FIELD: machine building.

SUBSTANCE: invention relates to machine building. The connector assembly used for force transfer includes the housing, which contains a part of the rotating disk. The housing is fitted with plate element, coolant duct, and inlet and outlet holes. The plate element with the force transfer surface contacts through the circular zone of the lateral surface with the rotating disk for deceleration of relative rotation of the housing and disk. The coolant duct is partially formed by the side of the plate element counter to the force transfer surface. Through the inlet hole water enters the coolant duct, and through the outlet hole water leaves the coolant duct. The internal lateral surface of the plate element counter to the force transfer surface, comprises multiple hemispherical recesses, intended for forming of turbulence and a secondary turbulent water flow in the coolant duct for improvement of heat exchange between the plate element of the housing and water, flowing through the coolant duct.

EFFECT: device cooling improvement is achieved at the expense of increase of heat transfer coefficient.

11 cl, 8 dwg

FIELD: transport.

SUBSTANCE: invention relates to railway transport, specifically to braking systems of rail vehicles. The parking brake includes braking cylinder with piston actuated by working fluid, as well as with parking brake having control lever installed with rotation possibility which rotation is transferred to shaft. The piston actuates piston rod of wheel brake cylinder which rod is coaxial with braking cylinder axis. The shaft is installed with possibility to turn perpendicular to braking cylinder axis via shaft bearing in body. Control lever is intended to initiate shaft rotating movement which is transformed into parallel to braking cylinder axis linear movement of support roller installed with possibility to rotate by means of support roller bearing on parallel to shaft axis of rotation by means of cam. The cam has working surface interacting with radial outer surface of support roller during clamping or releasing travel of parking brake. Cam working surface is made as portion of cylinder surface circumference the central axis of which performs circular trajectory of movement around shaft axis during clamping or releasing travel of parking brake.

EFFECT: higher efficiency factor of device.

13 cl, 6 dwg

FIELD: machine building.

SUBSTANCE: invention refers to an adjustment device for a disk brake mechanism. The adjustment device (1) is intended to control wear of brake pads (23) and pneumatically controlled disk brake mechanism (20) with a brake disk (20). The adjustment device (1) is actuated by a rotating lever of a clamping device. The clamping device can be inserted into an adjustment screw (25) of the disk brake mechanism (20). The adjustment device (1) comprises a connection ring (8) for coupling with a bush (14) made from resilient material which is engaged with the adjustment screw (25). A blocking unit is installed between the adjustment screw (25) and the adjustment device (1) and forms a limiter in the tangential direction in relation to the direction of rotation for the adjustment screw (25).

EFFECT: limitation of return rotation of the adjustment screw is provided.

6 cl, 13 dwg

FIELD: transport.

SUBSTANCE: invention relates to disc brake. Proposed brake comprises brake beam calliper (1) surrounding the brake disc (2) and brake shoe-linings (3) to be pressed against disc (2) both sides, one can be actuated on clamp side by the cam of clamping device brake lever (5) turning about the pin. Besides, this brake comprises the self-reinforcing device that features self-reinforcement factor selected so that after braking this brake releases automatically. Compressed air brake cylinder push-rod can act on lever (5). Said lever (5) thrusts on at least one ball-like support element (10) in calliper (1) that makes the cam pivot pin. Said element (10) abuts on support ball (9) located in direction of push-rod action above support element (10) and positioned in brake plunger (6) connected with lining (3) located on clamp side. Pressure plungers (7) are arranged on both sides of plunger (6) and spaced apart. One end of said pressure plunger rests on clamp (1) while opposite end thrusts via support ball (16) on lining (3). Pressure plunger (7) is secured in guide plate (4) arranged to displace to the axis of brake disc (2) in the brake mechanism shield (8).

EFFECT: optimised design, weight and sizes, higher efficiency.

9 cl, 4 dwg

FIELD: transport.

SUBSTANCE: invention relates to disc brake. Propose brake comprises brake external clamp (1), brake shoe linings (2) to be pressed against brake disc, one being driven by brake lever (5) that turns about clamp cam pin. Brake rod (6) abuts on the clamp from end side, said rod being connected from opposite side to lining (2) from clamp side or to guide plate (9) connected therewith. It comprises two spaced apart pressure rods (4) located in one direction connected to clamp (1) and lining (2) or to guide plate (9), and self-booster. Clamp (1) has hemisphere-shaped bearing seats (13, 15) accommodating plain bearing elements (14, 16) fitted therein for brake lever (5) and pressure rod (4) to thrust by their side bent off lining (2) against clamp (1). Brake rod (6) is coupled with lining (2) and latch.

EFFECT: perfected simple design, lower costs, longer life and higher reliability.

7 cl, 4 dwg

FIELD: automobile production.

SUBSTANCE: disc brake includes a calliper, an actuating mechanism and a fastener to fix an actuating mechanism on the calliper. Functional holes of the calliper and the actuating mechanism serve for connection of the actuating mechanism to a clamping device. The fastener is designed so that the second flange surface in the area located between the second functional hole and the fastener can be bent or deformed against elastic restoring force, and the restoring force can bring the second flange surface in individual sections to the pre-tension state in the direction to the first flange surface. The disc brake calliper, in which the first flange surface between the fastener and the functional holes is not flat. The actuating mechanism of the brake, in which the second flange surface between the fastener and the functional holes is not flat.

EFFECT: improving reliability owing to reducing negative effects on an actuating mechanism and a disc brake.

16 cl, 8 dwg

FIELD: transport.

SUBSTANCE: disc brake consists of shoe body, shoe friction linings, brake disc, mechanism with two bell cranks and springs, brake air cylinder and pins of said bell cranks. Brake disc is fitted at mounted axle of transport facility. Disc brake comprises friction discs arranged at both sides of friction disc that make, along with shoe friction linings, at least three surfaces of friction. Inner friction discs are composed of segments secured at body axle. Outer friction discs are composed of segment rings secured at brake disc axles with straps coupling said segments by screws. Friction discs comprises extra springs fitted at axles to make clearance over friction surface.

EFFECT: higher efficiency of braking, decreased sizes, simplified design, expanded operating performances.

2 dwg

FIELD: machine building.

SUBSTANCE: automatic slack adjuster includes a casing in which there provided is a hole into which a breaking cam shaft is inserted, a worm gear having the possibility of being engaged with a breaking worm shaft, a drive of a slack adjuster, a lever of the breaking drive and an assembly of one-sided coupling. Assembly of one-sided coupling includes a supporting arm, a supporting bracket attached to the supporting arm without any rotation possibility, a side plate, a gear and a one-sided clutch. The supporting arm has a hole into which a break cam shaft is inserted. The hole in the supporting arm is located coaxially to the hole made in the casing. The sided plate and the gear are coaxially pressed between the supporting arm and the supporting bracket so that rotation of the side plate and the gear about a common axis is provided. One-sided latch is located on the supporting bracket and deflected in radial outside direction from one-sided teeth formed on internal radius of the gear. Teeth of the gear on the outside circumference of the gear of the one-sided coupling are engaged with an adjusting screw that will transfer movement of the gear to the slack adjuster drive.

EFFECT: simpler manufacture of a slack adjuster.

8 cl, 7 dwg

FIELD: machine building.

SUBSTANCE: disk braking mechanism with self-boosting includes a clamp of disk braking mechanism, which is retained on a stationary support of disk braking mechanism, with brake pads, a self-boosting device and a brake plunger having the possibility of being brought into action by means of a brake lever, with a clamping device and with an adjustment device to adjust wear rate of brake pad and/or brake disk. Self-boosting device has a pressure plunger that adjoins the brake pad through an expanding support on end surface on the clamp side and that is located with its end zone facing the brake pad in a guide plate movably retained in the braking mechanism support. Expanding support in non-operating position of the self-boosting device is enclosed with sealing structure. Brake pad includes a cavity having a ramp outline, and pressure disk of the brake pad or another disk include a collar on the side facing from the friction pad, with a receiving element having the possibility of retaining pressure plunger.

EFFECT: improving operating reliability and increasing service life.

24 cl, 1 dwg

FIELD: transport.

SUBSTANCE: disc brake comprises floating clamp, brake piston driven by motion converter cartridge rear part of the latter being thrust against the bottom of seat made in said clamp for cartridge and including control shaft extending through seat bottom. Cartridge is locked by yoke resiliently pressed against sear wall. Cartridge pusher has lengthwise ledges composed of rods fitted in seat lengthwise slots. Anti-strain device is arranged between pusher rods and clamp seat slots. This device comprises ring with lugs distributed in circle in compliance with arrangement of rods. Said lugs have cylindrical tabs bent as said lengthwise ledges to lock the pusher and to allow its translation.

EFFECT: simplified production of brake clamp.

8 cl, 10 dwg

Portable container // 2514443

FIELD: transport.

SUBSTANCE: container comprises control element arranged at separate bed or at container vessel and connected via transfer assembly with container cover, and wheels. Besides, this container comprises the brake composed of a rod arranged in guides elastically connected with control element or transfer assembly to fir in toothed rim at wheel or wheels.

EFFECT: ease of use.

3 cl, 1 dwg

FIELD: machine building.

SUBSTANCE: annular disc brake includes a rotating disc and at least one disc shoe installed on each side of the rotating disc. Brake shoe or shoes on one side are connected to an axially guided load-carrying element of the brake shoe. The brake has a force transfer mechanism creating enhancement of increase in force between the axially driven element and load-carrying element. The method for increasing gripping force of brake shoe in annular disc brake consists in the fact that the first force is generated synchronously with the brake drive; at that, the first force has the direction that is parallel to rotation axis of the rotating disc. Also, rotating torque is generated using the first force; at that, rotating torque has the rotation centre that coincides with rotation axis of the rotating disc. Besides, the second force is generated using rotating torque; at that, the second force has the direction that is essentially identical to the direction of the first force and is higher than the first force. The second force is used for gripping of brake shoes on opposite sides of the rotating disc.

EFFECT: increasing brake compactness and providing uniform distribution of braking force in a circumferential direction of the rotating disc.

20 cl, 12 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed disk brake comprises caliper, holder secured to vehicle, friction appliances arranged on both sides of disk brake, detachable unit to secure friction appliances, and spring secured to friction appliance to joint first and second wings of caliper. Said caliper has extending part to embrace disk brake on both sides and is furnished with hydraulic cylinder with piston. Note here that caliper is arranged to move on the holder, while disk brake can rotate between said extending part and caliper piston. Holder represents a half passing on only one side of disk brake plane, while guide pins are arranged above disk brake perpendicular to its plane. Detachable unit is arranged partially in the first recess arranged in friction appliance one support and, partially, in second recess made in extending part of caliper and/or holder.

EFFECT: improved braking qualities of caliper and reduced weight.

19 cl, 8 dwg

Disk brake // 2363869

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry, particularly, to disk brakes. Proposed disk brake consists of brake caliper and brake throw-in mechanism. The latter is encapsulated into brake caliper and incorporates booster to transmit braking force to push rod arranged to slide in the said brake caliper. It is furnished with pressure plate, fitted on its end on the brake disk side, to transmit braking force to brake disk with the help of brake shoe lining holder and brake shoe lining. Aforesaid pressure plate is jointed to the brake shoe lining holder so that, in applying and releasing the brake, aforesaid push rod shifts from the axis and moves in the brake caliper with the help of aforesaid holder. The latter can move radially and tangentially in the said caliper or said holder. There are appliances to joint the disk brake throw-in mechanism with the push rod pressure plate, on the side opposite the brake shoe lining.

EFFECT: reduces weight, simplified assembly and mounting.

16 cl, 10 dwg

Rear disc brake car // 2193126
The invention relates to transport machinery, namely to the braking system of the vehicle, in particular to the rear brake, and can be used in the Parking brake rear disc brake

Disc brake vehicles // 2113368
The invention relates to disc brakes of vehicles and in particular to the host disk brakes, which contains the friction element and the spring

Disc brake // 2093725
The invention relates to the field of engineering, particularly to disc brakes for vehicles

Disk brake // 2363869

FIELD: automotive industry.

SUBSTANCE: invention relates to automotive industry, particularly, to disk brakes. Proposed disk brake consists of brake caliper and brake throw-in mechanism. The latter is encapsulated into brake caliper and incorporates booster to transmit braking force to push rod arranged to slide in the said brake caliper. It is furnished with pressure plate, fitted on its end on the brake disk side, to transmit braking force to brake disk with the help of brake shoe lining holder and brake shoe lining. Aforesaid pressure plate is jointed to the brake shoe lining holder so that, in applying and releasing the brake, aforesaid push rod shifts from the axis and moves in the brake caliper with the help of aforesaid holder. The latter can move radially and tangentially in the said caliper or said holder. There are appliances to joint the disk brake throw-in mechanism with the push rod pressure plate, on the side opposite the brake shoe lining.

EFFECT: reduces weight, simplified assembly and mounting.

16 cl, 10 dwg

FIELD: engines and pumps.

SUBSTANCE: proposed disk brake comprises caliper, holder secured to vehicle, friction appliances arranged on both sides of disk brake, detachable unit to secure friction appliances, and spring secured to friction appliance to joint first and second wings of caliper. Said caliper has extending part to embrace disk brake on both sides and is furnished with hydraulic cylinder with piston. Note here that caliper is arranged to move on the holder, while disk brake can rotate between said extending part and caliper piston. Holder represents a half passing on only one side of disk brake plane, while guide pins are arranged above disk brake perpendicular to its plane. Detachable unit is arranged partially in the first recess arranged in friction appliance one support and, partially, in second recess made in extending part of caliper and/or holder.

EFFECT: improved braking qualities of caliper and reduced weight.

19 cl, 8 dwg

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