Adjustment device for disk brake mechanism

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

 

The invention relates to an adjusting device for a disk brake, in particular pneumatically driven disk brake mechanism in accordance with the restrictive part of paragraph 1 of the claims.

Adjusting device for a disk brake mechanisms exist in different variants of execution. From DE 102004037771 A1 it is known adjusting device for a disk brake mechanism, and in this case a link to the full text of this document. This adjusting device is designed to pneumatically driven disk brake, in particular, in an embodiment with a sliding caliper. It can also be used in pneumatically driven disk brake mechanisms with a fixed caliper or swivel the caliper.

Pneumatically operated disk brake mechanisms are, however, standard equipment options heavy-duty trucks.

This disk brake mechanisms for the formation of the required clamping force necessary mechanical transmission, since the force is pneumatically loaded brake cylinder is limited by the pressure level (currently about 10 bar) and the limited dimensions of the brake cylinder. Have known at the present BP is two pneumatically driven disk brake mechanisms are gear ratio from 10:1 to 20:1. The stroke of the brake cylinder ranges from 50 to 75 mm, and thus the length of stroke of the clamp for the implementation clamp brake pads and the brake disc is approximately 4 mm

The thickness of the friction material of the brake pads is about 20 mm; as it has two pads, thereby excluding depreciation disc, the wear of approximately 40 mm, This value is much higher above the stroke length when the clamp. Therefore, there is a need for brake adjustment by means of the device according to the wear of the linings. Prior art include automatic adjusting device wear by which to achieve that so-called air gap, i.e. the gap between the brake lining and the brake disc in an unusable state, regardless of the state of wear and behavior brake lining wear, is kept at a constant level.

Very often in trucks you can find the disc brake mechanisms having a knob, concentric located in the hollow space of the threaded plunger and eccentric through the drive element (for example, switching fingers or gear)driven from the brake lever. During braking is connected to the piston rod of the brake cylinder brake the second lever performs a rotational movement. Before, mechanism connecting the controller (for example, switching plugs and switching fingers or gears), the rotational movement of the lever will be entered into the controller, must be overcome so-called free running. This move to the magnitude of the so-called air gap is critical, because in the process, the regulatory process is not activated, and stroke when the clip is, thus, the magnitude of the air gap. After overcoming this free motion controller is translated into rotational motion, and due to the connection with the screw plunger or tube begins the process of adjustment.

DE 102004037711 A1 describes a controller provided on Fig. It mainly contains the following functional elements:

shaft 2

- snap ring 3

- axial bearing 5

the sleeve collar or spacer 19

- switching fork or drive ring 6

- ball clutch 7

- cone clutch 17

a cylindrical spring 12.

Document DE 102004037711 A1 is given here as a reference. The adjusting device must perform basically two functions:

1) automatic adjustment of the air gap,

2) manual adjustment mechanism controller when replacing brake pads.

When installing new is almaznyh lining stops, which press the pads to the brake disc must be returned to its original position. This is accomplished by reverse rotation of the threaded plungers (pipe thread or set screws), which during use of the brake mechanism by operating in automatic mode adjustment device, in accordance with the amount of wear of the pads, turned up.

When rotated in the opposite direction of the set screws should pay attention to the fact that this should not apply too much force, exceeding limitations. If this happens, then there is a risk that the adjustment mechanism after replacing the brake pads will not work, because the force of the clamping set screws with a limit more than created an adjusting device time adjustments.

As mentioned previously, when installing new pads installation screws by turning manually on the controller is disposed in the initial position. Because visual inspection of the corresponding end position of the set screws is not possible, you mechanical evident limit reverse rotation.

The present invention consists, therefore, in the creation of the adjusting device with limit reverse rotation, and separazione drawbacks are eliminated or substantially reduced, and also create additional benefits.

The problem is solved by means of the adjusting device with signs of paragraph 1 of the claims.

The task is also solved by a disk brake mechanism with signs of paragraph 8 of the claims.

Between the adjusting device, which is performed with the capability to insert the set screw and the set screw is a locking device, which forms a limiter in the tangential direction relative to the direction of rotation for the set screw. In the preferred embodiment, ensure that when you return the set screw to its original position by the adjusting device prevents the clamp spindle lock, because the limiter in the tangential direction breaks the rotational movement.

Preferred embodiments of the invention are presented in the dependent claims.

Because the rotation in the opposite direction of the adjusting screw is carried out by means of the adjusting device, and the control or regulating device is in direct engagement with the screw, it is possible to limit reverse rotation by means of the regulator, it is not necessary in the implementation of dorogostoyaschih changes.

When the screw reaches the installation position of the plates, the regulator is most put into the set screw. The set screw performs relative to the connecting ring of the knob rotation. Between the end side of the adjusting screw and the knob is made with the possibility of deformation or displacement shaped blocking element. The connecting ring regulator has in the preferred embodiment, for example, similar to the teeth of the saw, designed for the locking element, the front teeth.

If the set screw is rotated in the opposite direction, at the end of the adjustment is in contact with the blocking element. The blocking element by means of the end faces of the adjusting screw axially deformed or shifted until then, until the occurrence of the profile ring gear o ring. Since the connecting ring through the bushing flange and the thrust ring regulator mounted on the disc brake mechanism, for example on its head, the set screw can no longer be rotated in the opposite direction. Through this implemented acting in the direction of the periphery of the limiter reverse. Jamming the set screw can be, thus, prevent the network. Upon actuation of the brake mechanism set screw may otvincivatmisa from the controller without overcoming great friction or clamping forces limiter.

An alternative embodiment of the invention provides for the presence of end teeth on the adjusting screw. When this set screw is engaged with the end teeth when reaching the set position of the plates directly in the face teeth of the connecting ring on the regulator. As a consequence, the set screw can no longer be rotated in the opposite direction. Because in this version of the solution, the limiter acts in the tangential direction, jamming does not occur. Thus, using little effort it is possible to Unscrew the screw from the bracket. The mechanism of automatic control is provided, thus, without restrictions.

The axial mobility of the blocking element, for example, due to the presence of at least one protrusion that is engaged with the recess of the bushing of elastic material. The blocking element can contain springy hooks intended for insertion into engagement with the corresponding recesses of the connecting ring.

The disc brake mechanism, in particular a pneumatically actuated control is implemented, the disc brake mechanism, contains the above-described adjusting device.

The invention is explained in more detail with reference to the drawings showing the following:

figure 1 - caliper disk brake mechanism in partial section, with the mounting screw and the adjusting device in accordance with the invention,

2 is a first preferred embodiment of the adjusting device in accordance with the invention, in partial section,

figure 3 is a perspective view of the first preferred variant the execution of the blocking element,

4 is a second preferred embodiment of the adjusting device in accordance with the invention, in partial section,

5 is a perspective view of a second preferred variant of execution of the blocking element,

6 is a third preferred embodiment of the adjusting device in accordance with a third preferred implementation of the blocking element, in partial section,

Fig.7 is a perspective view of a third preferred variant of execution of the blocking element,

Fig - fourth preferred embodiment of the adjusting device in accordance with the fourth preferred implementation of the blocking element, in partial section,

Fig.9 is a perspective view which otwartego preferred options for performing the blocking element,

figure 10 - the fifth preferred embodiment of the adjusting device in accordance with the invention, in partial section,

11 is a perspective view of the adjusting screw with the teeth,

Fig - adjusting device in accordance with the prior art, in partial section,

Fig - disc brake mechanism, schematically.

Items with the same or similar functions are indicated on the figures the same reference position.

When explaining the construction and operation of the pneumatic disc brake according pig reference should be made to the corresponding description DE 19729024 C1. On Fig presents the following components: disc brake mechanism 20, the brake disc 21, the support plate 22 of the disc brake mechanism, the brake pads 23, the yoke 24, the set screws 25 and 26, the lugs 27, the chain wheel 28, the chain 29, the Cam 30 and the rotating lever 31 having a drive element 32, which is in interaction with the switching fork adjusting device 1. The adjusting device 1 is in this case in the adjusting screw 25.

Such adjusting device 1 will be explained hereinafter in more detail. The adjusting device 1 is also suitable for disc brakes, activated by electrodepot the La.

Figure 1 shows the support plate 22 of the disc brake mechanism 20 in a partial section, with a set screw 25 and the adjusting device 1 in accordance with the invention, which is placed in the set screw 25. The set screw 25 bottom provided with a stop 27 (see also Fig), and here he is shown in the initial position for the installation or changing pads.

The adjusting device 1 has the following structural elements, which in this case does not show all: lead screw and drive axle at its upper end; a thrust ring 3 for fixing the adjusting device 1 in the support plate 22 of the disc brake mechanism; a sleeve 4 with the shoulder, that without the ability to scroll is connected to the thrust ring 3 and has an upper flange located underneath the surface of the raceway for the balls of the thrust bearing; drive ring connected to the switching device, which is connected to the rotating lever 31; ball coupler with coupling ring 8, which communicates with the sleeve 14 of elastic material; and a cylindrical spring, which is located in the hub 14 of elastic material and is based on the shaped washer. The General principle of operation of the adjusting device 1 is described in detail in DE 102004037771 A1, with reference to figure 5, which here is given a hint.

Contact cfig, 4, 6 and 8, which show the first, second, third and fourth embodiments of the, as examples, in partial section, of the adjusting device 1 in accordance with the invention, the first, second, third and fourth variants of execution of the blocking element 5 in accordance with the invention.

Between the lower side of the connecting ring 8 and the upper side of the adjusting screw 25 is located a locking device. In these proposed versions of the locking device has, accordingly, made with the possibility of deformation or displacement shaped blocking element 5. The connecting ring 8 knob 1 preferably contains the same teeth of the saw, designed for the locking element, the end teeth. If the set screw is rotated in the opposite direction, at the end of the adjustment is in contact with the blocking element 5. The blocking element 5 through the end faces of the adjusting screw 25 is axially deformed or shifted until then, until the introduction of the profile ring gear o ring 8. Since the connecting ring 8 is fixed by means of the bushing flange and the thrust ring 3 regulator 1, the set screw 25 can no longer be rotated in the opposite direction. Through this re the current occurs in the direction of the periphery of the limiter reverse. Thereby can be prevented from jamming the set screw 25. Upon actuation of the brake mechanism set screw 25 may at any time by the controller 1 without overcoming great friction or clamping forces to otvincivatmisa from limiter.

Corresponding locking elements 5 are presented in figure 3, 5, 7 and 9 as the first, second, third and fourth embodiments.

Various locking elements 5 are respectively located inside the protrusions 6 for connection without the possibility of rotation passing in the axial direction of the slots 33 of the sleeve 14 of elastic material. As a result, the locking elements 5 are arranged on the spring sleeve 14, respectively, with the possibility of axial displacement.

The blocking element in accordance with the first variant of execution according to Fig 3 has the outer periphery of springy hooks 7, intended for insertion into engagement with the corresponding grooves of the connecting ring 8.

Figure 5 presents the second preferred embodiment of the locking element 5, the hooks 7 are installed respectively on the elastic earrings 9.

7 shows the third preferred embodiment of the locking element 5. Here is shown the teeth of the toothed profile 10 on the outer periphery and located within the and elements 11 return spring for engagement with a set screw 25.

Fig.9 illustrates the fourth preferred embodiment of the locking element 5. The teeth of the toothed profile 10 are located at the outer periphery. This blocking element 5 is, for example, the static ring.

The next option is the implementation of the placing face of the teeth on the adjusting screw 25, and this option is presented in figure 10 and 11. This decision set screw 25 by means formed therein from the front side of the ring gear 12 when reaching the set position of the plates engages directly with the relevant mounted on the end side of the gear ring connecting ring 8 on the controller 1. As a consequence, the set screw can no longer be rotated in the opposite direction. As and when this solution limiter works in the tangential direction, then there is no jamming and thus, it is possible to Unscrew the set screw 25 with the application of a small force limiter. The operation of the automatic control system is provided, thereby, without restrictions.

The invention is not limited to the above-described variants of execution. It can be modified within the framework of the attached claims.

1. The adjusting device (1)designed to adjust the wear deceleration is different pads (23) pneumatically driven disk brake mechanism (20) with the brake disk (21) and driven by a rotating lever clamping device, which is performed with the possibility of introducing a set screw (25) disk brake mechanism (20), and the adjusting device (1) contains a connecting ring (8) for connection with the sleeve (14) of elastic material, which is in engagement with a set screw (25), and screw (25) and an adjusting device (1) is a locking device, which forms a limiter in the tangential direction relative to the direction of rotation for the set screw (25), characterized in that the locking device is located between the connecting ring (8) and installation screw (25) and contains a blocking element (5)which are fixed against rotation and with the possibility of axial displacement or axial deformation is installed on the sleeve (14) of resilient material and includes springy hooks (7), which are intended for introduction into engagement with the corresponding recesses of the connecting ring (8).

2. The device according to claim 1, characterized in that the blocking element (5)intended for connection with the fixation of the rotation of the sleeve (14) of the elastic material includes at least one protrusion (6)intended for introduction into engagement with the recess (33) of the sleeve (14) of the elastic material.

3. The adjusting device (1), is intended is to adjust the brake lining wear (23) pneumatically driven disk brake mechanism (20) with the brake disk (21) and driven by a rotating lever clamping device, which is performed with the possibility of introducing a set screw (25) disk brake mechanism (20), and the adjusting device (1) contains a connecting ring (8) for connection with the sleeve (14) of elastic material, which is in engagement with a set screw (25), and screw (25) and an adjusting device (1) is a locking device, which forms a limiter in the tangential direction relative to the direction of rotation for the set screw (25), characterized in that the locking device is located between the connecting ring (8) and installation screw (25) and contains a blocking element (5)which are fixed against rotation and with the possibility of axial displacement or axial deformation is installed on the sleeve (14) of resilient material and comprises a gear profile face of the teeth of at least one tooth intended for introduction into engagement with the corresponding recesses of the end teeth of the connecting ring (8), and contains at least one element (11) recoil.

4. The device according to claim 3, characterized in that the blocking element (5)intended for connection with the fixation of the rotation of the sleeve (14) of the elastic material includes at least one protrusion (6), designed to bring the Oia in engagement with the recess (33) of the sleeve (14) of the elastic material.

5. The adjusting device (1)designed to adjust the brake lining wear (23) pneumatically driven disk brake mechanism (20) with the brake disk (21) and driven by a rotating lever clamping device, which is performed with the possibility of introducing a set screw (25) disk brake mechanism (20), and the adjusting device (1) contains a connecting ring (8) for connection with the sleeve (14) of elastic material, which is in engagement with a set screw (25), and screw (25) and adjusting the device (1) is a locking device, which forms a limiter in the tangential direction relative to the direction of rotation for the set screw (25), characterized in that the locking device is located between the connecting ring (8) and screw (25) and contains end teeth, which are formed on the end of the set screw (25)facing to the connecting ring (8), the connecting ring (8) the corresponding edge teeth for insertion into the mesh.

6. The disc brake mechanism (20), in particular pneumatically operated disk brake mechanism containing the adjusting device (1) according to any one of claims 1 to 5.



 

Same patents:

FIELD: transport.

SUBSTANCE: invention relates to machine building, particularly, to disc brakes. Air controlled disc brake comprises support, brake cylinder and self-booster. Brake support comprises brake shoes arranged on clamp side and counteraction side. Brake cylinder can be loaded with compressed air to generate braking force and to act on clamp for clamping the brake shoe. Said clamp comprises rotary brake lever. Brake shoe on clamp side can displace both parallel with brake disc rotational axis and with brake disc friction surface. Self-booster features boost factor selected so that brake automatically releases after braking. Said factor is smaller than or equals 2.2.

EFFECT: higher reliability, safe and faultless design.

13 cl, 5 dwg

FIELD: transport.

SUBSTANCE: set of invention relates to automotive industry, particularly, to disc brakes. Adjustment device comprises connecting sleeve. Connecting sleeve consists of the sleeve and connecting insert to be fitted axially therein with geometrical closure, and disc brake. Pneumatic disc brake comprises adjustment device with connecting sleeve.

EFFECT: better operating performances, compact and strong device.

8 cl, 5 dwg

FIELD: transport.

SUBSTANCE: invention relates to automotive industry. Device for control over air-operated disc brake lining and brake disc wear comprises clamp arranged to be actuated by rotary lever. Pressure device can be fitted in disk brake setscrew and mounted at disk brake mechanism by means of thrust ring. Thrust bearing is arranged axially on one side of drive ring while bearing ramp clutch with free running function is arranged on opposite side. Said clutch comprises bearing, drive ring arranged on one axle between thrust bearing and clutch bearings ion drive side, and coupling ring on power takeoff side. Taper bush is arranged between said coupling ring and cylindrical spring sleeve. Torque-dependent clutch with retaining section is fitted on axle between said taper bush and spring sleeve. Air operated disc brake incorporated abode described adjustment device.

EFFECT: precise adjustment, perfected manual return mechanism.

9 cl, 6 dwg

FIELD: transport.

SUBSTANCE: adjustment device intended for compensate for brake-shoe lining and air-operated disk brake disk is activated by rotary lever. Pressure device can be fitted in disk brake setscrew and mounted at disk brake mechanism by means of thrust ring. Axial bearing is fitted axially on driven ring side while coupling with ball ramp with free running function. Said coupling comprises balls, driven sleeve located on drive side between axial bearing and its balls and clutch ring arranged on power takeoff side. Tape coupling is arranged between said clutch ring and cylindrical spring guide sleeve. Said clutch ring forms turn working angle (αA) confined by at least one thrust.

EFFECT: compact design, ruled out clutch ring slip.

8 cl

FIELD: machine building.

SUBSTANCE: adjustment device for tuning to wear of brake pads and brake disk of pneumatic disk brake is brought into action with pressure device by means of a rotating lever. Pressure device has the possibility of being introduced to an adjustment screw of disk brake. Axial bearing is installed along the axis on the side of a drive ring, on the opposite end of which there installed is a ball coupling with a ramp for balls with free travel function. The above coupling with ramp includes balls, drive sleeve located on the drive side along the axis between axial bearing and its balls, and coupling ring located on power takeoff side. Conical coupling is located between coupling ring located on power takeoff side and guide sleeve of spring for cylindrical spring. Conical coupling has coupling ring located on power takeoff side and conical sleeve connected to guide sleeve. Clamping balls are located between coupling ring and conical sleeve.

EFFECT: creation of a compact design and improvement of operating reliability of the device.

10 cl, 6 dwg

FIELD: transport.

SUBSTANCE: invention relates to rolling stock brake systems. Disc brake comprises friction unit. Friction unit is composed of radial double-row thrust bearing with medium ring making the brake disc rigidly fitted on mounted axle while two thrust rings make linings. Said linings are pressed to medium ring by levers coupled with brake cylinder. Outer surface of medium ring and inner surfaces of thrust rings have taper grooves to accommodate the balls.

EFFECT: reduced thermal load and wear of disc brake friction pair.

4 dwg

FIELD: transport.

SUBSTANCE: proposed disk brake block comprises two flanges with appropriate friction linings to allow friction against disk. Said flanges are articulated on ends of two levers driven by brake force source that comprises first piston displacing along first axis A. Brake block comprises also assembly to automatically control the gap between friction linings and said disk. First piston transmits braking force to pusher arranged inside aforesaid source to increase and transmit said force via said assembly and, along second axis B perpendicular to said first axis A, to ends of said levers perpendicular to those where said flanges are articulated with.

EFFECT: higher operating performances.

12 cl, 7 dwg

Disk brake // 2331804

FIELD: engines and pumps.

SUBSTANCE: disk brake comprises a housing with a cramp enveloping the disk brake, a leader coupled with the brake lever, two blocks with friction linings and a nut set up to reciprocate. The leader coupled with the brake lever is furnished with an additional opposite-direction threaded section. The nut is coupled with the leader additional section connected to the brake lever. The movable block is fixed on the nut. The cramp is arranged on the housing to move parallel to the disk rotation axis. The housing is made up of two segments rigidly interconnected and enveloping the brake disk. Note that every segment is furnished with a hole, corresponding to the shape of blocks with linings, to accommodate the latter to move parallel to the disk rotation axis. The leader coupled with the brake lever is made up of a cylinder and a shaft with a larger and smaller diameter opposite-direction outer threads. The space between the cylinder with the thread and the shaft with the opposite thread direction accommodates an inner thread nut coupled with the leader shaft linked with the brake lever, its cylinder being in contact with the cramp inner thread.

EFFECT: longer life, higher efficiency and lower steel intensity of the brake.

5 cl, 1 dwg

FIELD: transport mechanical engineering.

SUBSTANCE: disc brake can be used in wheel brake systems of transportation vehicles with automatic compensation of wear of contact surfaces of shoes and disc. Disc brake has disc with shoes, hydraulic cylinder with sealing ring and piston, which piston interacts with one shoe and which connected cinematically with parking brake drive by means of rod mounted coaxially in cavity of piston. Disc brake also has balls disposed uniformly along circle of piston. Balls are placed into separator for interaction with cone-shaped surface made outside rod and with internal surface of piston; the surfaces form wedge-shaped space. Separator is made for longitudinal movement along rod and it is compressed motionlessness against glass with cup, which glass is fixed in case of hydraulic cylinder. There is clamping spring in the cup. Glass with cup is mounted in cavity made at end of rod.

EFFECT: simplified design; reduced labor input; improved reliability operation; reduced pressure losses of brake fluid.

7 cl, 6 dwg

The invention relates to drum brakes for vehicles, and is intended to compensate for wear of the brake linings on drum brakes

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: invention relates to machine building, particularly, to combine brake cylinders. Combined brake cylinder comprises cylinder of working braking mechanism, an active working brake, driven by working fluid displaced by piston and braking mechanism cylinder with spring energy accumulator, a passive parking brake. Piston of aforesaid braking mechanism cylinder with spring energy accumulator and rod of cylinder of working braking mechanism piston are aligned. In case piston stroke in aforesaid braking mechanism cylinder with spring energy accumulator increases power transfer ratio increases as well. Rail mounted vehicle disc type braking mechanism support unit incorporates said combined braking cylinder.

EFFECT: compact design, maximised force of braking.

25 cl, 15 dwg

FIELD: transport.

SUBSTANCE: invention relates to rolling stock brake systems. Disc brake comprises friction unit. Friction unit is composed of radial double-row thrust bearing with medium ring making the brake disc rigidly fitted on mounted axle while two thrust rings make linings. Said linings are pressed to medium ring by levers coupled with brake cylinder. Outer surface of medium ring and inner surfaces of thrust rings have taper grooves to accommodate the balls.

EFFECT: reduced thermal load and wear of disc brake friction pair.

4 dwg

FIELD: machine building.

SUBSTANCE: proposed device comprises two levers arranged on opposed outer surfaces of casing and system of seals. Brake caliper levers are driven eccentrically by crank. Crank is fitted on eccentric shaft end side. Seal between casing and lever represents tight seal and comprises partially elastic bellow secured to case on one side, and, on opposite side, to brake caliper lever.

EFFECT: improved operating performances.

10 cl, 3 dwg

FIELD: transport.

SUBSTANCE: lifting machine comprises motor to drive lifting machine shaft 14. Machine brake 20 applies braking force to disc 22 coupled with machine shaft 14 to decelerate or stop said shaft. In compliance with one version, brake 20 actuates shifting element 38 to apply shifting pressure to tong-type braking mechanism to apply braking force to disc 22. Brake drive 48 with deformable material displaces to counteract shifting pressure to control adhesion between braking mechanism 32 and disc 22. Controller varies braking force applied to disc 22 to control input force on said deformable material. Position of braking element relative to rotary part is defined using material input signal magnitude.

EFFECT: higher operating performances.

19 cl, 5 dwg

FIELD: security facilities, blasting.

SUBSTANCE: invention refers to armoured machinery and can be used in chassis of military caterpillar vehicles equipped with fire protection facilities. The chassis of a military caterpillar vehicle contain a frame, a power unit, a power gear including a fan drive with a friction clutch and a cooling system with a fan, and fire protection equipment with an automatic control unit. The fan is secured on a driving hub made with a friction surface. A pressure plate is designed so as to interact with the friction surface of the driving hub. A driven hub is made as a whole with a body of a bearing and is equipped with a cartridge located in its inner cavity and able to rotate around its axis. A chamber forming container is assembled in the cartridge; and an exploder as a source of pneumatic energy is installed in the said container. At that the container is designed with an orifice hole communicating the inner cavity of the container with the chamber and rigidly connected to the driven hub. A feature of electric blasting of the charge of an explosive substance of the exploder is secured to a flange of the container. The said feature is made as a lock with a core. The core is electrically connected with the said automatic control unit, and the lock is equipped with a spring which presses the core to a detonating cap of the exploder.

EFFECT: improvement of fire extinguishing efficiency in a motor-transmission compartment of chassis of a military caterpillar vehicle with hydro mechanic transmission.

2 dwg

Up!