BRAKE ASSEMBLY, COMPRISING A BRAKE, AN ADAPTER AND A GEARBOX

Description

[0001] The invention relates to a brake arrangement comprising a brake, an adapter and a gear.

[0002] It is well known that a brake transmits a braking torque to a shaft.

[0003] From the US 5 603 395 A The closest state of the art is a brake arrangement.

[0004] From the US 4,377,094 A A liquid-cooled disc brake is known.

[0005] From the CN 202 441 770 U a brake arrangement is known.

[0006] From the FR 2 709 119 A1 a traction machine is known.

[0007] From the CN 101 823 433 A a brake arrangement is known.

[0008] The invention is therefore based on the object of designing a brake arrangement as compact as possible.

[0009] According to the invention, the object is achieved in the brake arrangement according to the features specified in claim 1.

[0010] Important features of the invention in the brake arrangement comprising a brake, an adapter and a gearbox are that the adapter has an adapter housing which is connected to a housing part of the gearbox, A flange portion of the brake is connected to the adapter housing on the side of the adapter housing facing away from the gearbox, a cover portion of the brake is connected to the flange portion, and at least one bearing for rotatably supporting the input shaft of the gearbox is accommodated in the adapter housing. The advantage here is that a brake is attached to a gearbox via an adapter, thus increasing the braking torque through the gearbox.

[0011] In an advantageous embodiment, a first gear part is connected to the input shaft of the transmission in a rotationally fixed manner, with the first gear part engaging with another gear part of the transmission. Advantageously, the shaft braked by the brake functions directly as the input shaft of the transmission.

[0012] In an advantageous embodiment, the cover part, together with the flange part, performs the housing function for the brake and / or forms the housing and / or forms the housing itself. This is advantageous because the brake can be attached to the gearbox in a protected manner.

[0013] In an advantageous embodiment, a driver is connected to the shaft in a rotationally fixed manner, wherein a brake pad carrier is connected to the driver in a rotationally fixed manner and is axially movable relative to the magnetic body, in particular is movable back and forth, wherein a magnetic body of the brake is connected to the flange part in a rotationally fixed manner, wherein an energizable coil is accommodated in the magnetic body, wherein an armature disk is arranged axially between the brake pad carrier and the magnetic body, in particular is movable back and forth, wherein the armature disk is connected to the magnetic body in a rotationally fixed manner and is arranged to be axially movable relative to the magnetic body, in particular by means of bolts which project through recesses in the armature disk and are fastened to the magnetic body, wherein spring elements supported on the magnetic body press onto the armature disk. The advantage here is that in the event of a power failure the brake is applied and thus increased safety can be achieved.When the brake is energized, the magnetic force generated by the coil with the magnetic body overcomes the spring force generated by the spring elements and the armature disk is attracted to the magnetic body, so that the brake is released.

[0014] According to the invention A braking surface is formed on the flange part, in particular a precision-machined one. The advantage here is that the frictional heat of the brake is transferred to a housing part.

[0015] In an advantageous embodiment, the shaft extends through the magnet body. This advantageously allows an angle sensor to be connected and / or arranged within the hood portion on the end portion of the shaft facing away from the adapter housing.

[0016] In an advantageous embodiment, the brake is connected directly to the transmission via the adapter, meaning that no motor or electric motor is interposed. The advantage here is that the brake can be made very small because the transmission converts the braking torque into a larger braking torque.

[0017] In an advantageous embodiment, a terminal box is attached to the outside of the cover part, to which the supply lines of the brake, in particular the coil, are routed. This is advantageous because the brake connection is easily accessible and can be carried out.

[0018] In an advantageous embodiment, the bearing accommodated in the adapter housing centers two parts of the adapter housing relative to each other, with one of the parts being connected to the flange part, which has one or the braking surface of the brake. Advantageously, the centering is effected via the bearing and thus also relative to the shaft.

[0019] In an advantageous embodiment, the adapter housing has a cuboid-shaped section. This provides the advantage of achieving high torsional rigidity, thus allowing for a high braking torque to be applied.

[0020] Important features of the storage and retrieval machine with a brake arrangement are that a wheel acting as lateral guidance, in particular a guide wheel, is connected in a rotationally fixed manner to the output shaft of the gearbox.

[0021] The advantage here is that no separate wheel axle is necessary, but the output shaft of the gearbox can be connected directly to the wheel in a rotationally fixed manner.

[0022] In an advantageous embodiment, the wheel is arranged on the top of a frame of the storage and retrieval machine. This is advantageous in that both the drive located on the underside, which has an additional brake, and a guide wheel located on the top can be subjected to a braking torque.

[0023] In an advantageous embodiment, a drive wheel driven by an electric drive is arranged on the underside of the frame of the storage and retrieval machine, in particular, the drive wheel is designed as a rail wheel. Advantageously, the drive is close to the ground. The drive is also equipped with an additional brake, allowing braking instead of acceleration.

[0024] Further advantages emerge from the dependent claims. The invention is not limited to the combination of features in the claims. Further possible combinations of claims and / or individual claim features and / or features of the description and / or the figures will become apparent to those skilled in the art, particularly from the problem and / or the problem posed by comparison with the prior art.

[0025] The invention will now be explained in more detail using schematic illustrations: In the Figure 1 A stacker crane is shown in plan view, which has a brake arrangement 4. In the Figure 2 The stacker crane is shown in side view. Figure 3 The brake arrangement is shown in an oblique view. In the Figure 4 a cross-section through a region of the brake arrangement 4 is shown.

[0026] As shown in the figures, a drive wheel 3 is arranged on the underside of the frame 1 of the storage and retrieval machine, and a wheel 2 is arranged on the top side of the storage and retrieval machine, which wheel can be braked by means of the brake arrangement.

[0027] Preferably, the drive wheel 3 is designed as a rail wheel and rolls on a rail arranged on the floor of the system comprising the storage and retrieval machine.

[0028] Wheels 2 are arranged on the upper side of the frame 1 for lateral guidance, wherein at least one of the wheels 2 can be braked by the brake arrangement.

[0029] For this purpose, this wheel 2 is connected in a rotationally fixed manner to an output shaft of a gear 30 of the brake arrangement 4. Preferably, the wheel 2 is placed on the output shaft and is connected in a rotationally fixed manner, in particular by means of a key connection.

[0030] The input shaft 44 of the gearbox has a smaller diameter than the output shaft of the gearbox because the input shaft 44 is subjected to a smaller torque.

[0031] The gear 30 is designed as an angular gear so that the input shaft 44 is aligned perpendicular to the output shaft.

[0032] Instead of an electric motor driving the gear 30, the invention provides an electromagnetically actuated brake which is connected to the gear 30 via an adapter.

[0033] For this purpose, the adapter has an adapter housing 40, which is connected to a housing part, in particular a flange, of the gearbox 30, in particular by means of screws. On the side of the adapter housing 40 facing away from the gearbox 30, a flange part 41 is connected to the adapter housing 40.

[0034] The adapter housing 40 is constructed in two parts and accommodates a bearing for the rotatable support of the shaft 44. The bearing is housed in both the first and second parts of the adapter housing 40, thus centering the two parts relative to each other. The flange part 41 is connected to one of the two parts.

[0035] The brake is enclosed by a cover 42, which is connected to the flange part 41 and thus forms a housing for the brake. A terminal box 43 is attached to the outside of the cover 42, to which the electrical supply lines of a brake coil are routed.

[0036] The coil can therefore be energized.

[0037] The brake has a magnetic body 47 made of ferromagnetic material, which is connected to the flange part 41 in a rotationally fixed manner.

[0038] An annular recess is formed in the magnet body 47, in which the coil formed as a toroidal coil is received.

[0039] The shaft 44 extends through the magnet body 47.

[0040] Between the magnetic body 47 and the flange part 41 there is arranged a ferromagnetic armature disk 46 which is connected to the magnetic body 47 in a rotationally fixed manner but can be moved back and forth axially, i.e. parallel to the direction of the axis of rotation of the shaft 44.

[0041] Spring elements supported on the magnetic body 47 press on the armature disk 46. Thus, when the coil is energized, the armature disk 46 is attracted to the magnetic body 47 against the spring force generated by the spring elements.

[0042] An annular driver 45 is connected to the shaft 44 in a rotationally fixed manner, in particular by means of a keyway. The driver 45 has external teeth. A disc-shaped brake pad carrier is mounted on the driver 45 and has internal teeth that mesh with the external teeth.

[0043] Thus, the brake pad carrier is connected to the shaft 44 in a rotationally fixed manner, but can be moved axially back and forth. The brake pad carrier is arranged between the flange part 41 and the armature plate 46 and preferably has brake pads axially on both sides.

[0044] If the coil is now not energized, the spring elements press the armature disk 46 onto the brake pad carrier, which is thus pressed towards the flange part 41, in particular onto a finely machined surface of the flange part 41 which functions as a braking surface. The brake is thus applied, generates a braking torque and enables the gear 30 to amplify this braking torque towards the output shaft in accordance with the transmission ratio of the gear 30.

[0045] The storage and retrieval machine is preferably designed as a rail vehicle.

[0046] In further embodiments according to the invention, the gear 30 is designed as a spur gear, in particular as a parallel shaft gear.

[0047] In further embodiments according to the invention, an angle sensor can be arranged at the end region of the shaft 44 protruding from the magnetic body 47 in order to detect the angular position of the shaft 44. List of reference symbols

[0048] 1 Frame of the storage and retrieval machine 2 Wheel 3 Drive wheel 4 Brake assembly 30 Gearbox 40 Adapter housing 41 Flange part 42 Cover part 43 Connection box 44 Shaft 45 Driver 46 Armature disc 47 Magnetic body, in particular coil core

Claims

1. A brake arrangement having a brake, an adaptor and a gear unit (30), wherein the adaptor has an adaptor housing (40) which is connected to a housing part of the gear unit (30), wherein a flange part (41) of the brake is connected to the adaptor housing on that side of the adaptor housing (40) remote from the gear unit, wherein a cover part (42) of the brake is connected to the flange part (41), wherein at least one bearing for the rotatable mounting of the input shaft (44) of the gear unit is received in the adaptor housing (40), characterised in that a braking surface is formed on the flange part (41), in particular is finely machined.

2. A brake arrangement according to claim 1, characterised in that a first toothed part is connected to the input shaft of the gear unit (30) in a rotationally-fixed manner, wherein the first toothed part engages a further toothed part of the gear unit (30).

3. A brake arrangement according to any one of the preceding claims, characterised in that the cover part (42) together with the flange part (41) carries out a housing function for the brake and / or is housing-forming and / or forms the housing.

4. A brake arrangement according to any one of the preceding claims, characterised in that an entrainer (45) is connected to the shaft (44) in a rotationally-fixed manner, wherein a brake lining carrier is connected to the entrainer (45) in a rotationally-fixed manner and is movable axially relative to the magnet body (47), in particular is movable to and fro, wherein a magnet body (47) of the brake is connected to the flange part (41) in a rotationally-fixed manner, wherein an energisable coil is received in the magnet body, wherein an armature plate (46) is arranged axially between the brake lining carrier and the magnet body, in particular is movable to and fro, wherein the armature plate is connected to the magnet body (47) in a rotationally-fixed manner and is arranged in an axially movable manner relative to the magnet body (47), in particular by means of bolts secured to the magnet body and projecting through cutouts of the armature plate, wherein spring elements supported on the magnet body press onto the armature plate (46).

5. A brake arrangement according to claim 4, characterised in that the shaft (44) projects through the magnet body (46), in particular wherein at the shaft end-region remote from the adaptor housing (40), an angle sensor is connectable and / or arrangeable within the cover part in order to detect the angular position of the shaft, in particular wherein a sensor shaft of the angle sensor is connected to the shaft in a rotationally-fixed manner and a housing of the angle sensor is connected to the magnet body (46) and / or is connected to the cover part.

6. A brake arrangement according to any one of the preceding claims, characterised in that the brake is connected directly to the gear unit (30) via the adaptor, in particular therefore no motor or electric motor is arranged therebetween.

7. A brake arrangement according to any one of the preceding claims, characterised in that a terminal box (43) is secured to the exterior of the cover part (42) and the supply lines of the brake, in particular of the coil, are led out to this terminal box.

8. A brake arrangement according to any one of the preceding claims, characterised in that the bearing received in the adaptor housing (40) centres two parts, forming the adaptor housing, of the adaptor housing with respect to one another, wherein one of the parts is connected to the flange part (41) which has one or the braking surface of the brake.

9. A brake arrangement according to any one of the preceding claims, characterised in that the adaptor housing (40) has a cuboid region.

10. A storage and retrieval machine having a brake arrangement according to any one of the preceding claims, characterised in that a wheel (2) acting as a lateral guide, in a particular a guide wheel, is connected to the output shaft of the gear unit (30) in a rotationally-fixed manner.

11. A storage and retrieval machine according to claim 10, characterised in that the wheel (2) is arranged at the upper side of a frame (1) of the storage and retrieval machine.

12. A storage and retrieval machine according to claim 10 or 11, characterised in that a drive wheel (3) driven by an electric drive is arranged at the underside of the frame (1) of the storage and retrieval machine, in particular wherein the drive wheel (3) is in the form of a rail wheel and consequently the storage and retrieval machine is in the form of a rail vehicle.