JP3280970B2 - Brake units for railway vehicles - Google Patents

Abstract

A braking unit, useful in particular as a shoe brake unit, has a brake cylinder (8), a lead-screw (4) actuated lift regulator (5) and at least one nut. The brake cylinder (8) is excentrically arranged to the axis (6) of the lift regulator (5) and is coupled to the housing (17) of the regulator by a multiplication gear (15, 23, 22). The coupling is ensured by a cardan joint having a frame (16) that surrounds the housing (17) of the regulator. The housing (17) of the regulator is pivotably coupled around an axis of rotation (19) to the frame (16) of the cardan joint by bolts (18a, 18b) and the frame (16) of the cardan joint is pivotably coupled around an axis of rotation (21) to the multiplication gear (15, 23, 22) by bolts (20a); both axes of rotation (19 and 21) are perpendicular to each other and to the axis (6) of the lift regulator (5). The cardan coupling allows bending loads on the lead-screw (4) and skewing stresses on the coupling spots of the lift regulator (5) to be avoided, even with laterally movable wheel-sets and with a standing or lying arrangement of the shoe brake unit.

Description

Description: The present invention relates to a brake unit for a railway vehicle, which is provided with a lift adjuster, wherein the brake unit is provided with a brake block guided by a swing lever. If the axial direction of the lift adjuster extends substantially in the direction in which the brake block is pressed against the tread of the railcar wheel to be braked, and the brake unit is configured for disc brake application, Instead of the brake block, a brake rod for a disc brake is hinged in place of the brake block, and a brake cylinder that is eccentrically arranged with respect to the axis of the lift adjuster is provided. A sleeve-shaped adjuster casing used as a force introducing member; The adjuster casing is pivotable about a rotational axis perpendicular to the axial direction of the lift adjuster relative to the transmission, and the lift adjuster is A spindle, wherein the screw spindle at the front end is non-rotatable about an axis coaxial with the axis of the lift adjuster, but at least in a plane defined by this axis and the longitudinal direction of the rocking lever. The brake unit is hingedly connected to the brake block when configured as a block brake unit and to the brake rod when configured for brake application of a disc brake, and the lift adjuster is It is of the type having at least one nut which is screwed to a screw spindle.

Such a brake unit configured as a block brake unit is known, for example, from US Pat. No. 3,888,483. In this known block brake unit, the transmission is configured as a transmission lever, the transmission lever being rotatable in equilibrium with the axis of the rail vehicle wheels at one end, the brake cylinder unit at one end, the brake cylinder at the other end, and the center. The region is hinged to the regulator casing near the hinge connection to the casing. The forward end of the screw spindle is likewise hinged to the lower end of a rocking lever so that it can pivot about a pin parallel to the axis of the railcar wheels, and the upper end of the rocking lever rotates through the parallel pin Possibly mounted on the casing of the block brake unit. From the above-mentioned publication, the front end of the screw spindle is guided by a rocking lever in a circular path about its casing bearing during the braking and releasing process, while the central area of the screw spindle is covered by the regulator casing. Due to the hinged connection to the transmission lever, it is guided on a circular path centered on the bearing of the transmission lever on the housing; the screw spindle therefore has its own axis and rocking lever during the braking and releasing process and It can be seen that the pivoting movement takes place in a plane defined by the longitudinal direction of the transmission lever parallel to this. Thus, the end of the lift regulator remote from the brake block should be able to perform a considerable relative movement relative to the casing in this plane. In the known block brake unit, the lift regulator, which is configured as various known lift regulators with two nuts which are screwed in instead of detents, is used for its operation. A stop device having a stop play corresponding to the desired lift of the lift adjuster, which is arranged between the lift adjuster and the casing near the end of the lift adjuster remote from the brake block, and thus the stop device Must also be able to receive the relative lateral movement of the lift regulator relative to the casing. For this purpose, the stop device projects radially in the part of the lift regulator and has two housing-fixed ring stops with an axial play corresponding to the target lift and an additional radial play. It has a stopper ring engaged between them. When the end of the lift adjuster is displaced in the radial direction, its axial direction also changes relative to the casing, so the stopper device is configured to automatically adjust to a spherical surface,
For this purpose, according to an exemplary embodiment, the stop ring is mounted on the part of the lift regulator that supports the spherical bearing with the aid of the spherical bearing. The spherical bearing has a spherical band-like outer surface,
It has a fixed bearing ring in said part of the lift adjuster, the center of this sphere being located in the center plane of the stop ring and on the axis of the lift adjuster. A stopper ring is rotatably supported on a corresponding inner surface on the outer surface of the ball band. However, this spherical bearing is not very suitable for transmitting forces (which extend in the axial direction of the lift adjuster and thus in the direction of the stop of the stop device), and high surface pressures can occur on the spherical bearing.

It has to be mentioned that other types of lift regulators with threaded spindles for similar block brake units and often with only one screwed nut rather than detent are sometimes used, This lift regulator is likewise provided with a stop for the functionally necessary casing at the end remote from the brake block. When the above-mentioned known block brake unit is used for braking a railroad vehicle wheel which moves laterally to a considerable extent, the brake block of the block brake unit may also perform a considerable lateral movement at the time of lateral movement. For example, in the housing of the block brake unit, it can be received by a suitable, laterally moving bearing of the rocking lever. In this case, the screw spindle has a considerable lateral movement at the front end, while the bearing of the regulator housing on the transmission lever does not allow such a lateral movement. The screw spindle therefore assumes a lateral position in the housing of the block brake unit together with the overall post-lifting regulator, which results in diagonal loads and pressures on the brake block or the bearings on the rocker lever and on the bearings on the transmission lever. There is. Since the transmission lever is usually configured as a double arm, the lift adjuster is located between the two transmission lever-arms and hinged to both arms with the adjuster casing,
With a lifting regulator in an oblique position, an additional bending moment occurs during braking, in particular on its screw spindle. However, known lift regulators with threaded spindles are not well suited for receiving such lateral loads and bending moments, and such loads can lead to malfunctions or even breakage, for example, due to breakage of components. is there.

As can be seen from the above-mentioned US Pat. No. 3,883,333, it is customary for a block brake unit of the above type to be arranged upright on a vehicle, the rocking lever and the transmission lever extending at least in planes parallel to one another. However, recently, for assembly reasons, the transmission lever is arranged at a position rotated 90 ° about the axis of the lift adjuster together with the brake cylinder, and the swing lever and the transmission lever extend in a plane that intersects at almost right angles It may be advantageous to do so; such an arrangement is called horizontal. In this horizontal configuration, the front end of the screw spindle during the braking and releasing process is forcibly guided, as described above, also in a circular orbit about the swing lever suspension in the block brake unit or also in the vehicle frame. On the other hand, the hinged connection of the regulator housing to the transmission lever brings the regulator housing into a horizontal circular track of the transmission lever centered on a vehicle- or housing-fixed bearing. As a result, the lift adjuster and, in particular, its screw spindle carry out a three-dimensional pivoting movement, to which the above-mentioned stop device can be driven without force, but this movement is likewise transverse to the lift adjuster and its screw spindle. -And bending loads with the consequent dangers mentioned above.

Brake units are already known for tightening disc brakes, which have a configuration very similar to a block brake unit, but instead of a brake block, a brake application rod or brake rod for a disc brake (Zuspanngestaenge) ) Is hinged to the forward end of the screw spindle. Even with such a brake unit, the lateral and / or bending moment in the lift regulator can have adverse consequences.

Furthermore, brake units, in particular block brake units, are known which are not equipped with a transmission, for example a transmission lever, but rather with a wedge transmission (for example with a turning wedge according to DE-AS 2730959). In this case, the lift adjuster may be guided to move parallel to this axis near both ends, or may be guided by a swinging lever or a control lever, and the guides at both ends may be different from each other. . In all these wedge transmissions, it is common to provide the wedges with rolling guides or rolling action parts instead of sliding guides. For example, according to DE-AS2730959 described above, a regulator casing used as a force introducing member for a lift regulator is provided with protruding pins on both sides, and rolling bearings are disposed on the pins, and the outer ring is a lift regulator. The wedge surfaces of the two turning wedge members provided on each side of the abutment can abut and roll.
In such a (block-) brake unit, too, the lateral movement of the railcar wheels to be braked, or in a horizontal installation, in particular by the wedge action itself, the bending regulator with the dangerous consequences mentioned above on the lift regulator and especially on its screw spindle. And lateral loads occur.

The object of the invention is to use a brake unit of the type described at the outset with simple means, in which the lift regulator and in particular its screw spindle is mounted vertically or horizontally, irrespective of the vertical installation and the large railcar wheels to be braked. The configuration is to at least sufficiently avoid lateral force and bending stress even when lateral movement is possible.

This object is achieved according to the invention in that the frame member (16) is pivotable about the rotation axis (21), so that the adjustment is carried on the frame member (16) so as to be pivotable about another rotation axis (19). Container casing (17) is frame member (1
6) can be swiveled about the rotation axis (21) together with the other rotation axis (19) in the direction of the rotation axis (21) and the axial direction (6) of the lift adjuster (5). It is substantially perpendicular to this and is solved by the fact that the adjuster casing (17) is connected to the transmission (15, 23, 22) via the frame member (16). In this case, no force which induces undesired stresses on the lift adjuster is introduced at the point of transfer of the force from the transmission to the lift adjuster, and is known,
The front end of the threaded spindle can also be displaced slightly laterally, as is usually provided by manufacturing play, and can still be pure if it is mounted laterally via a rocking lever. Only longitudinal forces can be transmitted through the lift regulator and its screw spindle.

Other advantageous brake unit configurations according to the invention are given in the dependent claims.

The present invention will be described with reference to the drawings. FIG. 1a shows an upright block brake unit, FIG. 1b shows a horizontal block brake unit in a schematic side view, and FIG. 2 shows a cross-sectional side view of the block brake unit with a turning wedge transmission. 3 is a horizontal axial cross-sectional view of the lift adjuster of the block brake unit shown on an enlarged scale, FIG. 4 is a cross-sectional view taken along the line AB of FIG. 3 including an adjacent casing area of the brake unit, and FIG. FIG. 6 is an axial cross-sectional view of the adjuster casing and the frame member extending perpendicular to FIG. 3; FIG. 6 is a perspective view of a lift adjuster including the frame member (a front end of a screw spindle is omitted);
FIG. 8 is a sectional view corresponding to FIG. 3 of an example in which the frame member is supported on the adjuster casing with a different configuration, and FIG. 8 is a sectional view corresponding to FIG. 5 of the configuration according to FIG.

The same reference numbers relate to the same or corresponding parts in the figures.

The brake unit according to the invention is particularly suitable for block brake units, but also for tightening disc brakes. FIG. 1a shows an upright embodiment of the block brake unit, in which a brake block 3 suspended via a rocking lever 1 on a support arm 2 fixed to the block brake unit serves as a pressure rod. In the region of the intersection of the axis 6 of the screw spindle 4 and the axis 7 of the brake cylinder 8, which extends substantially perpendicularly at right angles thereto, the lift adjuster itself is not shown in the transmission. And the transmission is driven by a brake cylinder. From FIG. 1, the front end of the screw spindle 4 is guided on a circular orbit 9 by the pivoting lever 1, while the intersection 10 of the axes can be translated in the axis 6 depending on the configuration of the transmission. Or
Or it turns out that it can guide | guide on an arc similarly. The axis 6 must therefore be able to carry out a corresponding pivoting movement as indicated by axis 6 '.

In the horizontal configuration of the block brake unit according to FIG. 1b, the swing lever 1, the support arm 2, the brake block 3, the screw spindle 4 and the lift adjuster 5 correspond respectively to those in FIG. It has been turned horizontally by 90 ° with respect to the drawing plane of 1a, ie the brake cylinder 8 according to FIG. 1b has an axis 7 which extends laterally in the intersection 10 of the axes. Depending on the configuration of the transmission, its hinged connection to the lift adjuster 5 or the guide of this hinge connection, different guide paths for the lift adjuster 5 result here, and the axis 6 is correspondingly pivoted or displaced. You have to follow this.
This pivoting or displacing movement can be different from that of the configuration according to FIG. 1a, and in the brake unit constructed according to the invention, these different guideways have a bending moment or lateral load on the screw spindle 4 or the screw spindle 4 And does not lead to forcing or tightening at the bearings of the lift regulator 5.

2 shows the upright configuration of the block brake unit, that is to say the configuration of FIG. 1a, in which the lift regulator 5 and the brake cylinder 8 are arranged in a housing 11 of the block brake unit. The piston 12 of the brake cylinder 8 is hinged to the pivot wedge 15 via a piston rod 14, and the structure of the transmission corresponds to that of the above-mentioned US Pat. No. 2,730,959. The swivel wedge 15 is formed as a double side wall, and both side walls extend to the side of the annular frame member 16, which surrounds the adjuster casing 17 with play to allow rotation. The regulator casing 17 is provided with pins 18a and 18b projecting upward and downward, respectively.
Are positioned coaxially with a common, substantially vertical axis of rotation 19. The frame member 16 has pins 20a and 20b protruding on both sides.
And these common axes intersect or cross at right angles at least approximately axis 6 with rotation axis 19 as rotation axis 21. Each of the pins 20a and 20b has one rolling bearing 22, and its outer ring is in rolling contact with the wedge 23 of the turning wedge 15. The piston rod 14 has a fork shape and is configured to engage with the frame member 16 from both outer sides. The side wall of the turning wedge 15 is hinged to each fork portion via a pin 24. The two side walls of the pivot wedge 15 are pivotally supported on the casing 11 by further pins 25; the pins 24, 25 extend substantially parallel to the axis of rotation 21 and the pins 24 are close to the front wedge surface 23. Yes,
And pin 25 is near the rear end of pivot wedge 15 below axis 6.

The front end of the screw spindle 4 is hingedly connected to the brake block 3 via a pin 26 and the lower end of the swing lever 1 via another pin 27, and the upper end of the swing lever 1 is connected to another end. It is mounted on the support arm 2 via a pin 28; all the pins 26, 27, 28 extend with an axial direction substantially parallel to the axis of rotation 21.

In connection with the support by the rolling bearings on the wedge surface 23, the adjuster housing 17 and thus the lift adjuster 5 have a rotational axis 19
And 21 are rotatable about the center, so that they are together with the frame member 16 and the regulator casing 17 and the wedge surface 23 and the rolling bearing 22 rolling thereon, which are recognized as transmissions 15, 23, 22. The cardan joints 19, 16, and 21 are configured between the swivel wedge 15 and the wedge 15.

From FIG. 3 the general structure of the lift regulator can be seen on an enlarged scale: it is not detented on a screw spindle 4 (the front end with the hinge connection to this brake block 3 is omitted). Pressing nut 30 by thread
And the feed nut 31 are screw-connected. Double nut 3
Reference numerals 0 and 31 are loaded in a direction away from the brake block by the spring, that is, rearward, so that the inserted rolling bearing does not impair the rotation of the nuts 30 and 31 due to the spring load. The pressurizing nut 30 has a rotary coupling 32 to an insertion ring 33 that is immovable in the frame member 16,
The feed nut 31 is provided with a rotary coupling 34 for the control sleeve 35. The control sleeve 35 has relatively little play and surrounds the screw spindle 4 coaxially with the axis, which can be adjusted axially but non-rotatably via a slide guide 36. Vessel casing
Guided along 17, the regulator housing 17 likewise surrounds the screw spindle 4 in an annular manner coaxial with the axis 6.
The spring load of the nuts 30, 31 acts in the closing direction of the rotary couplings 32, 34, which are suitably configured for transmitting axial forces and which are optionally provided with teeth. A spring 37 is clamped between the casing 11 and the regulator casing 17 via a sleeve-shaped stay 38 or 39 such that the spring loads the regulator casing 17 away from the brake block 3, i.e., backwards. It is rare. Casing 11
Has a wide cutout 40 on the side remote from the brake block 3 into which the control sleeve 35 engages with a large radial play and ends;
The notch 40 is closed to the outside by a cover 45 fixed to the casing 11. Control sleeve 35 inside notch 40
Stopper device at the end farthest from the brake block
41 is configured: the control sleeve 35 is provided with a radially projecting stop ring 42 for this purpose, the stop ring also having a radial play in the notch 40 and the stop ring is provided in the housing. An axial play corresponding to the target lift of the lift adjuster 5 is provided between the two ring stoppers 43 and 44 fixed to 11, and the ring adjuster 5 is engaged so as to be displaceable in the radial direction. The stopper ring 42 and the ring stoppers 43, 44 are configured in a spherical crown shape, the center of the sphere being in the region of the intersection 10 of the axes. The ring stopper 43 is fixedly held on the casing 11 in the notch 40 via the cover 45, and is located on the rear surface of the ring body 46 surrounding the control sleeve 35 with radial play.
Is formed on the inner surface of the cover 45 itself.

Therefore, the structure of the lift adjuster is as described in US-PS388433.
3, whereby the mode of operation of the two lift regulators is also equal, so that the mode of operation of the lift regulator 5 can be withdrawn without difficulty from US Pat. Here, detailed description is unnecessary.

FIG. 3 shows the play clearance between the regulator casing 17 and the frame member 16, and furthermore the pins 20a, 20b with the rolling bearings 22 arranged thereon. Pin 20
At the ends of a and 20b, one slide 47 is arranged, each of which in a groove 48 of the casing 11 extending substantially parallel to the axis 6 of the lift adjuster 5, as can be seen in FIG. It is guided to be movable. It may be advantageous to provide a groove 48 in the insert 49, which can be fixedly connected to the casing 11 by screws 50. To aid understanding, reference numerals have been written in FIG. 4 that are further significant from the above description.

It can be seen from FIG. 5 that the frame member 16 is not provided with bearing holes for receiving the pins 18a, 18b, but with bearing grooves 51a, 51b opened on the side of the front brake block 3. Pin 1
8a and 18b are rotatably supported at the ends of the support grooves 51a and 51b, farther from the brake block.
The springs 37 press the pins 18a, 18b against the respective bottoms by loading the regulator casing 17.
The engagement of the pin 18a with the bearing groove 51a is particularly evident from FIG. 6; FIG. 6 additionally bears the important reference signs in the above description.

From the perspective view according to FIG. 6, it is furthermore possible to displace the adjuster casing 17 and the frame member 16 with the rotational axis 19, 21 and the position of the axis 6 made possible by this cardan joint bearing into the position indicated by reference numeral 6 '. I understand the nature,
Axis 6 'may be in a cone with a constant apex angle to axis 6, having a vertex at axis intersection 10;
値, which is sufficient in practice to accommodate different axial displacements with a block brake unit of upright or horizontal construction and a swing lever 1 of general length.

The displacement possibility of the lift adjuster 5 with the screw spindle 4 due to the introduction of force by means of a cardan joint is also sufficient when using a block brake unit with a set of wheels that move in an upright or horizontal configuration. If necessary, this brake unit can also be used for operating brake linkages, in particular brake tongues, with disc brakes.

During the braking process, the axis intersection 10 moves in the direction of the axis 6 relative to the casing 11. In the stopper device, the stopper ring 42 should be as flat as possible
In order to achieve contact with 43 or 44, the center of the sphere of the ring chopper 44 which is farther from the brake block is located at the intersection 10 of the axis and the ring stopper 43 which is closer to the brake block in the brake unit in the release position. Select the brake unit so that the center of the sphere is located approximately at the intersection of the axes with the brake unit in the maximum braking position, and the stopper ring
Ring stopper cooperating with the front and rear of 42
It may be advantageous to mold according to 44 or 43.

By modifying the above-described embodiment, the cardan joint bearing of the adjuster casing 17 with respect to the transmission can be configured as shown in FIGS. According to this embodiment, the frame member 16 is mounted on the adjuster housing 17 via an annular spherical bearing 52 which transmits force forward in the direction of the axis 6 of the lift adjuster. In order to guarantee this bearing, two holding pins 53 are provided between the frame member 16 and the adjuster casing 17, coaxial with the axis of rotation 19, and the holding pins 53 only transmit a slight force. Well, the retaining pin can therefore be configured as a simple insert according to FIG. 8 and can be attached to the frame member 16 in any manner. FIG. 8 shows such an attachment method that is different in the upper and lower directions. The retaining pin 53 is engaged in a suitable hole in the regulator casing 17. In order to reduce production and assembly, the bearing surface of the crown bearing 52, which is arranged on the adjuster housing 17, can be on the ring body 54, which can be removed, for example by means of a screw connection, but removably. casing
Combined with 17. Other configurations correspond to the above-described embodiment, and further description is unnecessary here.

By changing the crown support 52, a cylindrical support structure having a cylindrical axis coaxial with the rotation axis 19 can be provided between the frame member 16 and the adjuster casing 17.

In a further modification of the above-described embodiment, it is possible to provide a lever transmission as is known from the described US Pat. No. 3,884,333, instead of a transmission configured as a wedge transmission; the transmission lever is in this case a pin The slider 47 is hinged to 20a, 20b and the slide 47 can be omitted with a groove 48 for guiding it. Of course, other types of known transmissions can be used, and the introduction of force to the soft regulator 5 must always take place via the pins 20a, 20b only. In any case, the lift adjuster 5 is a screw spindle 4
At the same time, it must have a cardan-type displacement possibility, so that bending moments and oblique loads at the hinge connection for the lift adjuster 5 or its screw spindle 4 are avoided with the disadvantageous consequences thereof.

In the embodiments described above, in particular according to FIGS. 3 and 7, a specific lift regulator is shown. Of course, a cardan-type hinge connection to the transmission can also be used with other known constructions of lift-off or release-play adjusters, and to remove unwanted obstacle loads therefrom.

Abstract: A brake unit, which can be used in particular as a block brake unit, comprises a brake cylinder 8, a lift regulator 5 with a threaded spindle 4 and at least one nut. The brake cylinder 8 is a lift adjuster 5
Transmissions 15, 23, 22
It is connected to the adjuster casing 17 by the The connection is made through a frame member 16 surrounding the adjuster casing 17 and a cardan joint, and the adjuster casing 17 is coupled to the frame member 16 so as to be pivotable about the rotation axis 19 by pins 18a and 18b, And the frame member 16 is a pin
It is connected to the transmissions 15, 23, 22 rotatably about a rotation axis 21 by 20a; both rotation axes 19, 21 extend at right angles to one another and to the axis 6 of the lift regulator 5 at right angles. I have. The bending stress of the threaded spindle 4 and the oblique loading of the hinge connection of the lift adjuster 5 are also avoided in a wheel set moving laterally and in a block brake unit in an upright or horizontal configuration by means of a cardan hinge connection.

Continuation of the front page (56) References JP-A-59-192664 (JP, A) JP-A-60-157958 (JP, A) JP-A-59-192665 (JP, A) European Patent Application Publication No. 392752 (EP, A1) (58) Field surveyed (Int. Cl. ⁷ , DB name) B61H 1/00 B61H 15/00 F16D 49/00-71/04

Claims (9)

(57) [Claims] 1. A brake unit for a railway vehicle, comprising a lift adjuster, said brake unit comprising a brake block (3) guided by a swing lever (1). The axial direction (6) of the lift adjuster (5) when configured as
If the brake unit extends substantially in the pressing direction of the brake block against the tread of the railcar wheel to be braked and is configured for brake application of a disc brake, the brake unit instead of the brake block has a brake for the disc brake A brake cylinder (8) is provided, the rod being hinged and eccentrically arranged with respect to the axis (6) of the lift adjuster, the brake cylinder (8) being connected to the lift adjuster (5). Sleeve-type regulator casing used as a force introducing member (1
7) and the gearing (15,23,22)
The adjuster casing (17) is pivotable about a rotation axis (21) perpendicular to the axial direction of the lift adjuster (5) relative to the electric device (15, 23, 22); And the lift adjuster (5) includes a screw spindle (4);
The screw spindle cannot rotate around the axis coaxial with the axis (6) of the lift adjuster (5) at the front end,
When the brake unit is configured as a block brake unit, the brake block (3) and the disc are pivotable at least in a plane defined by this axis (6) and the longitudinal direction of the rocking lever (1). A lift adjuster (5) comprising at least one nut (30, 31) hinged to the brake rod when configured for brake application of the brake and screwed to the screw spindle (4); In the above type, the frame member (16) can pivot around the rotation axis (21), so that the frame member (16) has another rotation axis (19).
The adjuster casing (17), which is supported so as to be pivotable about the axis, together with the frame member (16),
It is pivotable about 1), said another axis of rotation (19) being said axis of rotation (21) and a lift adjuster (5)
Characterized in that the adjuster casing (17) is connected to the transmission (15,23,22) via a frame member (16), substantially perpendicular to the axial direction (6) of the railway. Brake unit for vehicles. 2. An axis of rotation (21) and another axis of rotation (19) traverse or intersect with at most a slight spacing within the axis (6) of the lift regulator (5). The brake unit according to claim 1. 3. The frame member (16) is hinged to the regulator housing (17) via pins (18a, 18b) coaxial to another axis of rotation (19).
Or the brake unit according to 2. 4. The regulator casing (17) is loaded in a direction away from the brake block (3) by a spring (37) disposed on the lift regulator (5), and includes a pin (18a,
4. The brake according to claim 3, wherein the brake housing (18b) is arranged in the regulator housing (17) and engages with an open bearing groove (51a, 51b) on the brake block side in front of the frame member (16). unit. 5. The lift adjuster (5), wherein the frame member (16) is a lift adjuster (5).
3. The brake unit as claimed in claim 1, wherein the brake unit is mounted on the regulator housing via an annular spherical or cylindrical bearing for transmitting the force in the axial direction. . 6. A holding pin (53) coaxial with another axis of rotation (19) is incorporated between the frame member (16) and the regulator casing (17). Brake unit as described. 7. A lift adjuster (5) is provided with a spherical stopper device (41) for a brake unit casing (11) located at an end remote from the brake block, wherein the stopper device is a lift device. It has an axial stop play and a radial play corresponding to the target lift of the adjuster (5), the radial play being provided at this end of the lift adjuster (5) at the casing (11). A stopper ring (42) is provided which allows a relative radial displacement with respect to the stop ring (41) which projects radially and engages with play in between the two casing fixed ring stoppers (43, 44). 3), wherein the ring stopper (43, 44) and the stopper ring (42) are configured in a spherical crown shape with a spherical center located in the region of the axis intersection (10).
The brake unit according to any one of claims 1 to 6. 8. The center of the sphere of the ring stopper (44) farther from the brake block in the brake unit in the release position is located at the intersection 10 of the axis, and the center of the sphere of the ring stopper (43) closer to the brake block is A brake unit in the maximum braking position, located approximately at the intersection of the axes, and the front and rear surfaces of the stopper ring (42) are formed corresponding to the ring stoppers (43, 44) cooperating therewith; The brake unit according to claim 7. 9. The transmission (15, 23, 22) is configured as a turning wedge member arranged on both sides of the lift adjuster (5), and the frame member (16) is provided on both sides with a rotation axis (21).
, The pins (20a, 20b) protruding coaxially with the wedge members (23), which are in rolling contact with the wedge surfaces (23) of the turning wedge members, and each of which is provided with a slide (47). The slide is extended symmetrically in the axial direction (6) of the lift adjuster (5) and is guided movably in the groove (48) of the casing (11) of the brake unit; The brake unit according to any one of claims 1 to 8.