阅读说明：本技术 用于调整物体的装置 (Device for adjusting an object ) 是由 H-J·本登 V·佩施 于 2019-08-16 设计创作，主要内容包括：本发明涉及一种用于调整物体(200)、(210),例如调整轧机机座中的辊子的装置。该装置包括能够转动地支承的压紧芯轴(110)和用于旋转驱动所述压紧芯轴的、具有定子和转子的扭矩马达(120)。此外,所述装置包括位置固定地布置的压紧螺母(130),其通过螺纹(132)与压紧芯轴转动耦联地啮合,以便在所述压紧芯轴旋转的情况下产生轴向运动。基于如此产生的轴向运动,所述装置能够产生轴向的调整力并且传递到待调整的物体(200、210)。为了能够更紧凑地构造并且在机械上简化这种装置,本发明提出：所述扭矩马达构造为内转子马达,其中,所述转子在所述定子内旋转；扭矩马达的转子以能转动地支承的花键套筒的形式构造,并且所述压紧芯轴的马达侧的端部以花键轴的形式构造,该花键轴被推入到所述花键套筒中并且与所述花键套筒转动耦联地接合,以便旋转所述压紧芯轴。(The invention relates to a device for adjusting objects (200), (210), for example, rollers in a rolling stand. The device comprises a rotatably mounted pressure mandrel (110) and a torque motor (120) for rotationally driving the pressure mandrel, said torque motor having a stator and a rotor. The device also comprises a fixedly arranged pressure nut (130) which is in rotationally coupled engagement with the pressure mandrel by means of a thread (132) in order to produce an axial movement when the pressure mandrel is rotated. Based on the axial movement thus generated, the device is able to generate an axial adjustment force and transmit it to the object (200, 210) to be adjusted. In order to be able to construct such a device more compactly and to simplify it mechanically, the invention proposes: the torque motor is configured as an internal rotor motor, wherein the rotor rotates within the stator; the rotor of the torque motor is configured in the form of a rotatably mounted spline sleeve, and the motor-side end of the pressure mandrel is configured in the form of a spline shaft which is pushed into the spline sleeve and is in rotationally coupled engagement with the spline sleeve in order to rotate the pressure mandrel.)

1. An apparatus (100) for adjusting an object (200), having:

a rotatably mounted pressure mandrel (110);

a torque motor (120) having a stator and a rotor for rotating the pressing mandrel (110), wherein the stator is designed in the form of at least one electromagnetic coil and is mounted in a stationary manner;

a fixedly arranged pressing nut (130) which is in rotationally coupled engagement with the pressing mandrel by means of a thread (132) in order to produce an axial movement and to generate and transmit an axial adjusting force to the object (200) when the pressing mandrel is rotated;

it is characterized in that the preparation method is characterized in that,

the torque motor (120) is configured as an internal rotor motor, wherein the rotor (122) rotates within the stator (126);

the rotor (122) of the torque motor is configured in the form of a rotatably mounted spline sleeve; and is

The motor-side end of the pressure mandrel is designed in the form of a spline shaft (115) which is pushed into the spline sleeve and engages in a rotationally coupled manner with the spline sleeve (122) in order to rotate the pressure mandrel (110).

2. Device (100) according to claim 1, characterized in that at least one permanent magnet (125), preferably made of a rare earth metal, such as rubidium, is arranged at the periphery of the rotor (122).

3. The device (100) of claim 2, wherein the spline sleeve (122) is made of a non-magnetic material.

4. Device (100) according to one of the preceding claims, characterized in that the device is provided with a housing (140) on which the stator (126) is supported in a stationary manner, on which the compression nut (130) is supported in a stationary manner, and/or on which the rotor (122) is supported in a splined sleeve in a stationary manner in the axial direction (a), preferably however rotatably via roller bearings (150).

5. Device (100) according to any one of the preceding claims, characterised in that it is provided with braking means (160) for braking and retaining the rotor.

Technical Field

The invention relates to a device for adjusting objects, for example, rollers in a roll stand for rolling metal rolling stock or a device for adjusting a die in a flat-bed press (brammenttrauch).

Background

Such adjusting devices are known in principle from the prior art, for example from german laid-open patent application DE102013224644a 1. This prior art discloses all the features of the preamble of claim 1. In particular, this publication discloses a device for adjusting rolls in a rolling stand, wherein the device has: the pressure roller comprises a rotatably mounted pressure roller and a torque motor having a stator and a rotor for rotating the pressure roller, wherein the stator is designed in the form of at least one electromagnetic coil and is mounted in a stationary manner. The device also comprises a stationary pressure nut in which the pressure mandrel is rotatably mounted. The compression nut is threadedly engaged with the compression mandrel. The compression nut and the screw thread have the following functions: the axial movement is generated when the pressing mandrel rotates and an axial adjusting force is generated and transmitted to the object, in particular to the roller.

In this known embodiment of the device, the torque motor for driving the pressing mandrel is arranged at the end of the device, which is thus of relatively high or long construction. With this conventional solution, the torque of the motor is transmitted to the pressure mandrel via the axially mounted drive shaft via a splined sleeve connection. This structural solution is complex and costly and, in addition, requires increased expenditure for maintenance and operation.

Disclosure of Invention

Starting from this prior art, the object of the invention is to: the known device for adjusting an object is improved in such a way that it is more compact in design and simpler in construction.

This object is achieved by the subject matter of claim 1. The device according to the invention is therefore characterized in that the torque motor is configured as an internal rotor motor, wherein the rotor rotates in the stator; the rotor of the torque motor is configured in the form of a rotatably mounted spline sleeve and the motor-side end of the pressure mandrel is configured in the form of a spline shaft, the pressure mandrel being pushed into the spline sleeve and engaging the spline sleeve in a rotationally coupled manner, so that the pressure mandrel is rotated.

In the solution according to the invention, the torque motor is no longer located at the axial end of the device on the end side, but rather is constructed and arranged with its stator and rotor coaxially to the motor-side end of the pressure mandrel and over its axial height. The drive shaft, which is also required in the prior art as an axial connection between the motor and the pressure mandrel, can be dispensed with without any replacement. The device according to the invention is therefore shorter and more compact. The electromotive drive components of the stator, such as magnets and coils, are advantageously integrated directly into the mechanism of the adjustment system or device. In particular, by omitting the drive shaft, the entire device is mechanically simpler to design. Furthermore, the adjustment properties (regelcharakteritik) are overall stiffer than the solutions known in the prior art. The claimed device is less complex, has lower manufacturing costs and is simpler to assemble in the workshop and at the level of the customer. Because less lubricating oil is used, it requires less maintenance expenditure and in particular lower operating costs during operation. Furthermore, the energy consumption is lower or the efficiency is higher.

The stator is arranged in a stationary manner, i.e. it is neither rotatable nor axially displaceable. The rotor is rotatably supported within the stator, but is fixed to a region of the stator in the axial direction. This ensures that the torque motor always applies the same torque to the rotor. By means of a sleeve connection/shaft connection (spline transmission) between the rotor and the pressure roller, it is ensured that the pressure roller is mounted axially movably relative to the rotor and that the torque is nevertheless always transmitted entirely from the rotor to the pressure roller, irrespective of how the pressure roller is axially fixed relative to the rotor or axially movable relative thereto. In particular, if the pressure mandrel does not protrude into the rotor or stator only partially or completely, the same torque is also transmitted to the pressure mandrel. The preconditions are always only: the pressing mandrel is in spline transmission with at least one section engaged with the rotor.

According to a first embodiment, it is advantageous if permanent magnets are arranged at the periphery of the rotor. The permanent magnet improves the efficiency of the torque motor. It is particularly advantageous if the permanent magnet is made of a rare earth metal, for example rubidium, since a particularly strong magnetic field can thereby be generated. In order not to adversely affect the action of the permanent magnets, it is advantageous if the rotor, that is to say the spline sleeve, is made at least partially or completely of a non-magnetic material.

The electric component is integrated as well as possible and simply into the mechanism of the adjustment system, and in this respect it is advantageous if the stator and/or the compression nut are each mounted in a stationary manner on the housing of the device.

Furthermore, it is advantageous if the rotor is fixed in position in the axial direction in the form of a spline sleeve, but is mounted rotatably on the housing.

Finally, it is expedient to provide a braking mechanism for braking and holding the rotor.

Drawings

With the description attached to the sole figure, fig. 1 shows a device according to the invention in longitudinal section.

Embodiments of the present invention are described in detail below with reference to the drawings.

Detailed Description

The core component of the device 100 according to the invention is a pressing mandrel 110 which is driven in rotation by means of a torque motor 120 consisting of a stator 126 and a rotor in the form of a splined sleeve 122. For this purpose, the motor-side end of the pressing mandrel 110 is configured in the form of a spline shaft 115 which engages in a rotationally coupled manner with a spline sleeve 122 which surrounds it coaxially. This means that, when the rotor or the spline sleeve 122 rotates, the pressing mandrel is automatically driven or rotated together in rotation by the spline drive (spline sleeve connected to the spline shaft) on account of the coupling.

The rotor or spline sleeve 122 is rotatably supported in the housing 140 of the device by means of roller bearings 150. At the upper end of the device, the roller bearing 150 is preferably configured as a tapered roller bearing, while at the lower end of the rotor, the roller bearing 150 is preferably configured in the form of a cylindrical roller bearing. The rotor or spline sleeve 122 is fixed in the axial direction a, i.e. it cannot move axially. Permanent magnets 125 are fixed at the periphery of the rotor in order to enhance the torque produced by the torque motor. Preferably, these permanent magnets are made of rare earth metals, for example rubidium, since particularly strong magnetic fields can thereby be generated.

In addition to the rotor 122, as mentioned, the stator 126 also belongs to the torque motor 120. The stator is typically constructed in the form of an electromagnetic coil, which is fixedly mounted on the housing 140 of the device and coaxially surrounds the rotor. In the present case, the torque motor 120 is configured as an internal rotor motor, that is to say the rotor 122 runs within the stator 126.

The motor-side end 115 of the pressure roller 110, which is rotationally coupled by means of a spline gear or a spline sleeve 122, can be designed to taper relative to its end remote from the motor side, as is shown in fig. 1. The tapering of the motor-side end of the pressure mandrel facilitates a compact design of the device in the radial direction.

The region of the pressure mandrel 110 remote from the motor is screwed into a fixedly arranged pressure nut 130, i.e. is rotatably supported in the pressure nut 130 by means of a thread 132.

Finally, as can be seen in the figures, a brake mechanism 160 is provided to brake and hold the motor. At the end opposite the compression nut, the device 100 preferably has a protective cap 180 on the end face, in which the travel sensor 170 can be arranged. The stroke sensor 170 is used to detect the axial position or displacement position of the pressing mandrel 110.

The mode of action of the device according to the invention is briefly explained next.

The torque motor 120 generates a magnetic field with its stator 126, i.e. with the electromagnetic coils, by means of which a rotor, i.e. the spline sleeve 122, running in the stator 126 is driven in rotation. The rotating spline sleeve 122 will be in synchronous rotation with the compaction mandrel 110 to which it is rotationally coupled. In particular, by providing a strong permanent magnet 125 between the stator and the rotor, the torque motor can apply or transmit very high torques to the pressure mandrel 110. The pressure mandrel 110 has, in its region remote from the motor, an external thread on its outer side, which engages with an internal thread of a positionally fixed bearing pressure nut 130. In the case of a rotation or rotation of the pressure mandrel, the latter is also moved in the axial direction a by interaction with the stationary pressure nut 130. This axial movement enables an axial adjustment force of the pressing mandrel 110 relative to the object, for example relative to the mounting 210 of the roller 200 in the rolling stand or relative to the press die in the flat bed press.

List of reference numerals

100 device

110 pressing mandrel

115 spline shaft

120 torque motor

122 rotor or spline sleeve

125 permanent magnet

126 stator

130 compression nut

132 thread

140 casing

150 roller bearing

160 braking mechanism

170 travel sensor

180 protective cap

200 roller

210 bearing of a mounting or roller

Axial direction A