GB2275311A - Disc brake for conveyor belts,machine tools,cranes,ski lifts,cable railways and the like - Google Patents
Disc brake for conveyor belts,machine tools,cranes,ski lifts,cable railways and the like Download PDFInfo
- Publication number
- GB2275311A GB2275311A GB9403269A GB9403269A GB2275311A GB 2275311 A GB2275311 A GB 2275311A GB 9403269 A GB9403269 A GB 9403269A GB 9403269 A GB9403269 A GB 9403269A GB 2275311 A GB2275311 A GB 2275311A
- Authority
- GB
- United Kingdom
- Prior art keywords
- brake
- lever
- plane
- disk
- parallel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims description 3
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- DYDCUQKUCUHJBH-UWTATZPHSA-N D-Cycloserine Chemical compound N[C@@H]1CONC1=O DYDCUQKUCUHJBH-UWTATZPHSA-N 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D59/00—Self-acting brakes, e.g. coming into operation at a predetermined speed
- F16D59/02—Self-acting brakes, e.g. coming into operation at a predetermined speed spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
- F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
- F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
- F16D55/2245—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members in which the common actuating member acts on two levers carrying the braking members, e.g. tong-type brakes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
- F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2121/00—Type of actuator operation force
- F16D2121/18—Electric or magnetic
- F16D2121/20—Electric or magnetic using electromagnets
- F16D2121/22—Electric or magnetic using electromagnets for releasing a normally applied brake
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Braking Arrangements (AREA)
Description
2275311 -1 DISK BRAKE FOR INSTALLATION IN DRIVE MECHANISMS IN INDUSTRUL
FACILITIES, CABLE RAILWAY DRIVE UNITS, AND THE LIKE In industry, for example in conveyor systems of various kinds, such as conveyor belts and cranes, as well as in cable railways and ski lifts, disk brakes are utilized with a brake disk arranzed on a drive shaft or a driven shaft, at least one brake force generator for closina a brake caliper by way of a lever system during the braking step, 11 0 the two brake levers of which act, with brake pads mounted on exchangeable supports, on the peripheral zone of the two brake disk surfaces, as well as with a lifting device associated with the brake force generator for opening, the brake caliper by means of the lever system during release of the brake.
Such adisk brake with brake pads has been known, for example, from the prospectus "Scheibenbremse SB 14" [Disk Brake SB 14] by the company Bubenzer Bremsen Gerhard Bubenzer Ing. GmbH.
Disk. brakes exhibit considerable advantages over the drum is brakes which latter are predominantly utilized, in particular, in United States industry.
By virtue of the use of highly developed friction pad materials in conjunction with the pad configuration and the ensuing favorable wear characteristic, disk brakes are distinguished by significantly longer operating lifetimes as compared with drum brakes. Another advantage of disk brakes resides in that the braking torque can be varied by way of the disk diameter without altering the brakina mechanics whereas in case of drum brakes a brake drum havina the corresponding diameter must be chosen for chano-ing the braking torque, necessitating at the same time braking mechanics adapted to the drum diameter.
C7 Based on the irrefutable advantages of the disk brake, the drum brakes in industrial facilities of all kinds are being increasingly replaced by disk brakes. This tendency also prevails in the industry of the United States.
One problem in replacing. a drum brake by a disk brake in existinc, facilities resides in that, on account of the limited mounting space between the drive motor and the gear system, the total dimension of the disk brake in the direction of the axis of rotation of the brake disk must not be substantially larger than the width of the brake drum of the drum brake. As far as the United States market is concerned, there is the additional difficulty that the use of a space-consuming, el ectro magnetic brake-disengaging unit with direct current operation is required for reasons of connecting the disengaging unit into the circuit of the drive motor.
The invention is based on the object of developing a 0 disk brake of the type discussed hereinabove with a compact, simple structure and a high braking power.
The invention provides a disk brake having the features of claim 1.
Suitable further developments of the invention are covered, in particular, by claims 3 and 4 as well as by the further dependent claims.
A preferred embodiment has two brake calipers, with a disengaging device for both brake calipers offset toward the outside in the brake disk plane, by a compact structure and a simple drive mechanism for closing, and opening the brake calipers. In existing industrial plants and the like o erating with brake dr-ums, the p ---3 - latter can be exchanged without difficulty with a disk brake according to the invention.
Two embodiments of the invention will now be described in greater detail by way of example with reference to the drawings in which:
Figure 1 is a frontal view of aflirst embodiment of disk brake, Figure 2 is a sectien along line 11-11 of Figg-ure 1, Figure 3 is a frontal view of a second embodiment of disk brake, and Figure 4 is a schematic view of the operating mechanism for a disk brake with one brake caliper.
The disk brake 1, mounted on a base plate 2, according to Figures 1 and 2 for installation in conveyor belts, machine tools, crane facilities, cable railways, etc. exhibits as the main structural parts- a brake disk 3 arranged on a drive shaft or driven shaft, a brake spring 4 for closing a brake caliper 5 by way of a lever system -to engage the brake, the two brake lever pai rs 6, 6, 7, 7 of which act, with brake pads 9 attached to exchangeable supports 8, on the peripheral zone of the two brake disk surf aces 3a, 3b, as well as an electromagnetic disengaging device 10 associated with the brake spring 4 and operated with direct current.
The brake lever pairs 6, 6; 7, 7 of the brake caliper 5 are articulated to the base plate 2 and-can be pivoted in a limited way in an outwardly displaced central plane 12-12 in parallel to the perpendicular plane 11-11 of the axis of rotation of the brake disk 3.
The free ends of the two brake levers 6 of one brake lever pair 6, 6 are joined together by a pivot pin 14 arranged parallel to the brake disk plane 13-13, an operating lever 15 being fixedly mounted to this pivot pin and projecting in the upward and downward directions past the pivot pin 14. The operating lever 15 is designed as a dual lever with two parallel, congruent individual levers 15a, 15b, the latter being connected to each other by the pivot pin 14 and two further pins 16, 17.
One end of the operating lever 15 is connected via the extended pins 16, 17 with another operating lever 18 arranged horizontally in an outwardly offset plane in parallel to the central pivoting plane 12-12 of the two brake lever pairs 6, 6; 7, 7. The operating lever 18 is likewise fashioned as a dual lever with two parallel, congruent individual levers 18a, 18b which latter are joined by the pins 16, 17.
The two operating levers 15, 18 constitute a bent angle lever or bellcrank 20.
The brake spring 4, accommodated in a housing 21 attached to the base plate 2, acts on a tie rod 22 articulated to a hinge pin 31 at the free end of the outwardly bent operating lever 18 of the angle lever 20.
The electromagnetic disengaging device 10 is mounted on the base plate 2 to be offset toward the outside with respect to the axis of rotation -7 23-23 of the brake disk 3 and comprises two disengager rods 24 forming a fork 25 and being horizontally movable in the brake disk plane 13-13 by an electromagnetic drive mechanism. The disengager rods 24 of the disengaging device 10 are connected in articulated fashion by a hinge pin 26 to the one ends of the two single levers 27a, 27b of an angle lever 27 designed as a dual lever, the latter beincr pivotable about an axis 28-28 parallel to the central pivoting plane 12-12 of the brake lever pairs 6, 6; 7, 7. The angle lever 27 is articulated with its other end to the lower end of a push rod 29 which latter is articulated with its upper end to a hinge pin 30 of the bent lever 18 of the angle lever 20 for operating the brake caliper 5 17 Z> and is movable in the pivoting plane 19-19 of the lever 18 in thevertical C7 direction.
A tie rod 32 with an integrated, automatic brake adjuster f or pad wear is articulated to the lower end of the lever 15 direcly encacinc, the one brake lever pair 6, 6 of the brake caliper 5 and to the free ends of the other brake lever pair. 7,7.
The second, preferred embodiment illustrated in Figure J, is equipped with two identical brake calipers 5 acting in diametrical opposition on the brake disk 3 and with a disengaging device 10 f or opening both brake calipers 3.
In this brake arrangement, for releasing the two brake calipers 5, a rotatable shaft segment 34 is inserted, in place of a pivot pin 14, in the free ends of the one brake lever pair 6, 6 of the two brake calipers 5, and the two shaft segments 34 bridging the brake disk 3 are connected to each other by a flexible coupling 35 compensating for displacement of the shaft segments 34 due to differing wear of the linings of the two brake calipers 5.
The kinematics of the operating mechanism of the disk brakes 1, 33 during the braking step and during release of the brakes are clarified in Figure 2 by the guide arrows associated with the individual operating elements, the solid arrows indicating the braking step and the dashed-line arrows indicatina the release of the brakes.
Figure 4 shows a schematic view of the operating mecharLism for a disk brake with one brake caliper, demonstrating the mode of operation of the lever system of the servo drive mechanism in two parallel planes and in a plane perpendicular thereto.
9 1
Claims (8)
1 A disk brake for installation in drive mechanisms in industrial facilities, cable railways, and the like, with a brake disk arranged on a drive shaft or a driven shaft, at least one brake force aenerator for closing a brake caliper by a lever system during the braking step, two brake levers of which caliper act, with brake pads mounted on exchangeable suppo.rts, on the peripheral zone of the two disk surfaces, as well as with a disengaging device for overcoming the brake force aenerator for opening the brake caliper by means of the lever system during release of the brake, wherein the brake caliper (5) acts on the brake disk (3) with two brake lever pairs (6, 6; 7, 7) in an outwardly offset plane (12-12) parallel to the perpendicular plane (11-11-1 of the axis of rotation of the brake disk (3), the brake force generator (4) operates the brake caliper (5) by a lever system (18, 22, 15) acting in an outwardly shifted plane (19-19) parallel to the pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7) and being connected ro the brake lever pairs (6, 6; 7, 7), and the disengaging device (10) acts by a lever system (27, 29), in a plane (13-13) perpendicular to the two parallel planes (12-12 and 19-19), on the lever system (18, 22, 15) of the brake spring (4) connected with the- brake caliper (5).
2..A disk brake according to claim 1, wherein the brake caliper (5) with two brake lever pairs (6, 6; 71 7) is pivotably attached to a. base plate (2) in the outwardly offset plane (12-12) parallel to the -7perpendicular plane (11-11) of the axis of rotation of the brake disk (3), by a pivot pin (14) arranged parallel to the brake disk plane (13-13) and connecting free ends of the two brake levers (6) of one brake lever pair (6, 6) with each other, by an operating lever (15) fixedly arranged on a shaft segment (34) and projecting, in the central pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7), in upward and downward directions past the shaft segments (34), one end of this operating lever being connected by pins (16, 17) with a further operating lever (18) which latter is horizontally arranged in the outwardly offset plane (19-19) parallel to the central pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7), the two operating levers (15, 18) forming a bent angle lever (20), a brake 0 111 spring (4) acting on a tie rod (22) which is articulated to a free end of the outwardly bent operating lever (18) of the angle lever (20), a disengaging device (10) of f set in the brake disk plane (13-13) toward the outside with respect to the axis of rotation (23-23) of the brake disk (3) with at least one disengaging rod (24) which latter is adjustable byffi drive unit in the brake disk plane (13-13) or in a plane parallel thereto and is articulated to an anale lever (27) which lever (27) is pivotable about an axis (28-28) parallel to the central pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7) and is articulated to the lower end of a push rod (29) articulated at its upper end to the outwardly bent operating lever (18) of the angle lever (20) for operating the brake caliper (5) and movable in a vertical direction in the plane (19-19) parallel to the central pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7), as well as a tie rod (32) with an integrated, automatic brake' adjuster which (32) is articulated to the lower end of the operating lever (15) directly engaging one brake lever pair (6, 6) of the brake caliper (5) and to the free ends of the other brake lever pair (7, 7).
3. A disk brake- acco.rding to claim 1 or 2, wherein said disengaging device is an electromagnetic disengaging device (10) with direct current operation.
4. A disk brake according to any of claims 1 to 3, equipped with two identical brake calipers (5) acting in diametrical opposition on the brake disk (3) and with a disengaging device (10) for opening both brake calipers (5)
5. A disk brake according to claim 1, wherein the brake caliper (5) with two brake lever pairs (6, 6; 7, 7) is pivotably attached to a base plate (2) in the outwardly offset plane (12-12) parallel to the perpendicular plane (11-11) of the axis of rotation of the brake, disk (3), by a pair of rotatable shaft segments (34) interconnected by a flexible coupling (35), said shaft segments being arranged parallel zo the brake, C7 17 disk plane (13-13) and connecting free ends of the two brake levers (6) of one brake lever pair (6, 6) with each other, by an operating lever (15) fixedly arranged on a shaft segment (34) and projecting, in the central 1.7 0 pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7), in upward and downward directions past the shaft segments (34), one end of this operating lever being connected by pins (16, 17) with a further operating lever (18) which latter is horizontally arranged in the outwardly offset plane (19-19) parallel to the central pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7), the two operating levers (15, 18) forming a bent angle lever (20), a brake spring (4) acting on a tie rod (22) which is articulated to a free end of the outwardly bent operating lever (18) of the angle lever (M), by a. disengaging device (10) of f set in the brake disk plane (13-13) toward the outside with respect to the axis of rotation (23-23) of the brake disk (3) with at least one disengaging rod (24) which latter is adjustable by a drive unit in the brake disk plane (13-13) or in a plane parallel thereto and is articulated to an angle lever (27) which lever (27) is pivotable about an axis (2,8-2.8) parallel to the central pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7) and is articulated to the lower end of a push rod (29) articulated at its upper end to the outwardly bent operating lever (18) of the angle lever (20) for operating the brake caliper (5) and movable in a vertical direction in the plane (19-19) parallel to the central pivoting plane (12-12) of the brake lever pairs (6, 6; 7, 7), as well as a tie rod (32) with an integrated, automatic brake adj us ter which (32) is articulated to the lower end of the operating lever (15) directly engaging one brake lever pair (6, 6) of the I.) t1 W brake caliper (5) and to the free ends of the other brake lever pair (7, 7).
6. A dJsk brake according to claim 2, wherein the two levers 1 (15, 18) of the bent angle lever (20) are dual levers wich parallel, concrr-uent individual levers (15a, 15b; 18a, 18b) which latter are connected to each other by means of pins (14, 16, 17).
7. A disk brake accordina to claim 1, wherein, for operating a brake caLiper (5), the tie rod (22) of the brake spring (4) is articulated to a hinge pin (31) of the bent lever (18) of the angle lever (20), and a push rod (29) of the disengaging device (10) is articulated to a further hinge pin (30) of the bent lever (18).
8. A disk brake according to claim 1, wherein the disengaging device (10) has two disengaging rods (24) f orming a f ork (25) and being connected, by a hinge pin (26), with the two individual levers (27a, 27b) of the angle lever (27) desiped as a dual lever, for reversing the disengaging stroke 0 -7 of the disengaging rods (24).
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE4305285A DE4305285C1 (en) | 1993-02-20 | 1993-02-20 | Part-pad disc brake for installation in drives in industrial plants, cable car drives and the like |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| GB9403269D0 GB9403269D0 (en) | 1994-04-13 |
| GB2275311A true GB2275311A (en) | 1994-08-24 |
| GB2275311B GB2275311B (en) | 1996-11-20 |
Family
ID=6480967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9403269A Expired - Fee Related GB2275311B (en) | 1993-02-20 | 1994-02-21 | Disk brake for installation in drive machanisms in industrial facilities,cable railway drive units,and the like |
Country Status (4)
| Country | Link |
|---|---|
| CA (1) | CA2100300C (en) |
| DE (1) | DE4305285C1 (en) |
| GB (1) | GB2275311B (en) |
| IT (1) | IT1273782B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19849749A1 (en) * | 1998-10-28 | 2000-05-04 | Mayr Christian Gmbh & Co Kg | Part-pad spring pressure brake to engage a rotating disc |
| DE20314822U1 (en) * | 2003-09-23 | 2005-02-03 | Hanning & Kahl Gmbh & Co. Kg | Azimuth brake for wind turbines |
| DE202004002192U1 (en) * | 2004-02-12 | 2005-07-14 | Bubenzer Bremsen Gerhard Bubenzer Ing. Gmbh | lever linkage |
| US7328778B2 (en) | 2005-08-04 | 2008-02-12 | Hillmar Industries Ltd. | Wheel brake caliper |
| DE102012107723B4 (en) * | 2012-08-22 | 2019-04-18 | Sibre Siegerland-Bremsen Gmbh | Fail-safe device, in particular brake unit for a disc brake |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB859527A (en) * | 1958-10-03 | 1961-01-25 | Vaughan Crane Company Ltd | Improvements in disc brakes for cranes |
| GB1473464A (en) * | 1974-04-13 | 1977-05-11 | Krupp Gmbh | Disc brake in particular for crane driving mechanisms |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1284191B (en) * | 1963-04-29 | 1968-11-28 | Scholten Geb | Spring-applied partially lined disc brake |
| DE2735876C3 (en) * | 1977-08-09 | 1981-08-06 | Vsesojuznyj naučno-issledovatel'skij institut cementnogo mašinostroenija, Toljatti | Partly lined disc brake |
-
1993
- 1993-02-20 DE DE4305285A patent/DE4305285C1/en not_active Expired - Fee Related
- 1993-07-12 CA CA002100300A patent/CA2100300C/en not_active Expired - Fee Related
-
1994
- 1994-02-17 IT ITMI940283A patent/IT1273782B/en active IP Right Grant
- 1994-02-21 GB GB9403269A patent/GB2275311B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB859527A (en) * | 1958-10-03 | 1961-01-25 | Vaughan Crane Company Ltd | Improvements in disc brakes for cranes |
| GB1473464A (en) * | 1974-04-13 | 1977-05-11 | Krupp Gmbh | Disc brake in particular for crane driving mechanisms |
Also Published As
| Publication number | Publication date |
|---|---|
| ITMI940283A0 (en) | 1994-02-17 |
| DE4305285C1 (en) | 1994-06-23 |
| ITMI940283A1 (en) | 1994-08-21 |
| GB9403269D0 (en) | 1994-04-13 |
| IT1273782B (en) | 1997-07-10 |
| CA2100300C (en) | 1998-09-22 |
| GB2275311B (en) | 1996-11-20 |
| CA2100300A1 (en) | 1994-08-21 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PCNP | Patent ceased through non-payment of renewal fee |
Effective date: 20020221 |