CN107263075B - Device for positioning a holding device for a threaded connection during overhead assembly and disassembly - Google Patents

Device for positioning a holding device for a threaded connection during overhead assembly and disassembly Download PDF

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Publication number
CN107263075B
CN107263075B CN201710208933.3A CN201710208933A CN107263075B CN 107263075 B CN107263075 B CN 107263075B CN 201710208933 A CN201710208933 A CN 201710208933A CN 107263075 B CN107263075 B CN 107263075B
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CN
China
Prior art keywords
screw
holding
nut
force transmission
threaded connection
Prior art date
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Active
Application number
CN201710208933.3A
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Chinese (zh)
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CN107263075A (en
Inventor
M.施奈德
M.马卡诺维克
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MAN Energy Solutions SE
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MAN Energy Solutions SE
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to DE102016205400.7A priority Critical patent/DE102016205400A1/en
Priority to DE102016205400.7 priority
Application filed by MAN Energy Solutions SE filed Critical MAN Energy Solutions SE
Publication of CN107263075A publication Critical patent/CN107263075A/en
Application granted granted Critical
Publication of CN107263075B publication Critical patent/CN107263075B/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/001Article feeders for assembling machines
    • B23P19/006Holding or positioning the article in front of the applying tool
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/002Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose for special purposes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/04Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
    • B23P19/06Screw or nut setting or loosening machines
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B23MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23PMETAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
    • B23P19/00Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
    • B23P19/10Aligning parts to be fitted together
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B11/00Work holders not covered by any preceding group in the subclass, e.g. magnetic work holders, vacuum work holders
    • B25B11/02Assembly jigs
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose
    • B25B21/001Combined nut setting and crimping
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B25HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25BTOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B23/00Details of, or accessories for, spanners, wrenches, screwdrivers
    • B25B23/02Arrangements for handling screws or nuts
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B23/00Specially shaped nuts or heads of bolts or screws for rotations by a tool
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B31/00Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/04Screwed connections specially modified in view of tensile load; Break-bolts for maintaining a tensile load
    • F16B31/043Prestressed connections tensioned by means of liquid, grease, rubber, explosive charge, or the like
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B35/00Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • F16B35/041Specially-shaped shafts
    • F16B35/044Specially-shaped ends
    • F16B35/045Specially-shaped ends for retention or rotation by a tool
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16BDEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS, WEDGES, JOINTS OR JOINTING
    • F16B41/00Measures against loss of bolts, nuts, or pins; Measures against unauthorised operation of bolts, nuts or pins
    • F16B41/002Measures against loss of bolts, nuts or pins

Abstract

The invention relates to a device for positioning a holding device for a threaded connection during overhead assembly and disassembly, the threaded connection connecting a first part with a second part, the first part being arranged above the second part, the threaded connection comprising a screw comprising a first part and a second part, the first part being connected to the first part and the second part passing through a hole arranged in the second part, the part of the second part comprising a thread for fastening a nut, the holding device bringing the nut from a starting position into a holding position at assembly and/or from the starting position into a capture position at disassembly, characterized in that the screw is both part of the threaded connection and part of the device for positioning the holding device, the screw comprising a device for detachably connecting to a force transmission means and the force transmission means being operatively connected to a drive device, which is mounted in a housing, the housing comprises a holding device for the nut, the operative connection between the force transmission means and the drive device making a vertical movement of the housing possible.

Description

Device for positioning a holding device for a threaded connection during overhead assembly and disassembly
Technical Field
The invention relates to a device for positioning holding devices for fastening nuts on the one hand and for preloading devices on the other hand, wherein these devices are employed in each case for the overhead assembly and disassembly of a threaded connection of two parts having the features of the preambles of claim 1 and claim 2, the two parts being arranged substantially horizontally to one another.
Background
When assembling large components arranged horizontally to each other, such as a casing of a turbo machine, difficulties arise during assembly and disassembly because of the size of the individual components. In order to be able to form a permanent connection between the individual components, the housing halves are separated into a lower part and an upper part, in particular by means of a horizontal part tap, and then permanently fastened by means of a screw connection.
Usually, a screw is screwed from below through a hole into the upper housing half from the lower housing half, so that the lower free end of the screw is available for screwing together with the nut.
By this screw-nut connection, the components are fixed against each other in a frictional engagement, as the screw and the nut, which are subjected to the elongation of the screw, are screwed together. According to the material rule, this elongation results in a preload in the screw which exerts a normal force on the components which is required for the frictionally engaged component connection.
In particular for connecting components of a turbomachine, it is advantageous to use a hydraulic tensioning device. These devices first hydraulically tension the screw before the threaded nut is subsequently tightened. When the tensile hydraulic pressure is removed, the screw then supports itself in the nut, which maintains the elongation of the screw and thus the desired preload. To disconnect the screw connection, the nut can be conversely unloaded and subsequently disconnected by again hydraulically stretching the screw.
As already explained at the outset, large turbomachines are usually split horizontally in their housing and the two housing halves are connected with screws, for example 65 kg, and nuts, for example 25 kg.
Because of the predetermined arrangement of the screws, the screwing of the nut usually has to be carried out manually overhead, because of the narrow space conditions on the base frame of the turbomachine and because of the supply lines for the surroundings of the turbomachine, it is usually not possible to carry out the assembly or disassembly of the nut with the aid of a lift truck or other auxiliary equipment.
The above also applies to the assembly or disassembly of preloading devices, sometimes having a heavier weight of even 90 kg and even more cumbersome than the nuts for the threaded connection of the housing parts to be connected.
According to the assembly methods hitherto, the assembly or disassembly takes place on the top of the heads of two persons, which is not optimal in terms of ergonomics and industrial safety.
Disclosure of Invention
It is therefore an object of the present invention to provide a device with which the nut for the threaded connection of the components to be connected on the one hand and the fastening nut of the preloading device on the other hand are brought into the optimum position for fastening to the screw for the threaded connection of the components to be connected at the time of the aerial assembly.
The object according to the invention is solved by a device according to claim 1 and claim 2.
The respective dependent claims relate to advantageous further developments.
The device according to the invention is a device for positioning a holding device for a nut on the one hand and for preloading a fastening screw of the device on the other hand, wherein these devices are employed in each case with overhead assembly and disassembly of a threaded connection of two parts arranged substantially horizontally to one another.
With the aid of the novel device, the overhead assembly or disassembly of the threaded connection can be carried out without problems even in narrow spatial conditions, wherein the basic principle of the device ensures on the one hand an optimal positioning of the nut for the threaded connection of the components to be connected and on the other hand an optimal positioning of the fastening nut for preloading the device with respect to the screw.
With the new device, the nut or the fastening nut for the preloading device is prevented from falling off during assembly or disassembly, thereby endangering the assembly personnel.
Furthermore, the device ensures that the nut on the one hand and the fastening nut for the preloading device on the other always find the best point of engagement with respect to the thread of the screw and that the nut is prevented from tilting on the one hand or the fastening nut of the preloading device is prevented from tilting on the other hand.
Drawings
Exemplary embodiments of the invention are shown in the drawings and are explained in more detail below. It shows
Fig. 1 apparatus according to a first embodiment of the invention (positioning of the nut)
Fig. 2 shows an apparatus according to a second embodiment of the invention (positioning of the tightening nut of the preloading apparatus).
Detailed Description
Fig. 1 shows a device 1 according to a first embodiment of the invention, wherein the device 1 is focused on a holding device 20 providing a nut 11 for a threaded connection during overhead assembly and disassembly.
The device 1 according to fig. 1 is initially located in a starting position 21, i.e. the holding device 20, when assembled, transfers the nut 11 from this starting position 21 into a holding position 22 to be screwed together with the thread 13 of the screw 12 and thus for fastening the first part 16 to the second part 17.
In this holding position 22, the device 1 can be located on the one hand in an assembly position for the nut, or the holding device 20 can be located instead in a capture position 22 (disassembly) for unscrewing the nut 11 from the screw 12.
Thus, the device 1 according to fig. 1 is used for positioning a holding device 20 for a threaded connection, wherein the threaded connection connects the first part 16 with the second part 17, and wherein the first part 16 and the second part 17 are arranged substantially horizontally and fixedly with respect to each other, and wherein the first part 16 is arranged above the second part 17 in the vertical direction, when assembling and disassembling overhead.
The threaded connection comprises a screw 12, the screw 12 comprising a first portion 14 and a second portion 15, and wherein the first portion 14 of the screw 12 at its vertically upper end is connected to a first part 16 (not shown), and wherein the second portion 15 of the screw 12 passes through a hole 18, the hole 18 being arranged substantially vertically in a second part 17, and wherein the portion of the second portion 15 of the screw 12 which projects vertically downwards out of the second part 17 in its upper region comprises a thread 13 for fastening the nut 11.
When assembling the nut 11, the holding device 20 brings the nut 11 from the starting position 21 into the holding position 22 to be screwed together with the screw 12, and/or when disassembling the nut 11, the holding device 20 can be brought from the starting position 21 into the catching position 22 to unscrew the nut 11 from the screw 12.
With the device 1 according to the invention, the screw 12 is both part of the threaded connection for connecting the first part 16 with the second part 17 and part of the device 1 for positioning the holding device 20.
At the lower end, the screw 12 comprises a device 19 for detachable connection with a force transmission means 23, wherein the force transmission means 23 is movably operatively connected with a drive device 24. The drive device 24 is fixedly mounted in a housing 25, wherein the housing 25 comprises at its vertical upper end a holding device 20 for the nut 11.
By means of the operative connection between the force transmission means 23 fastened to the screw 12 and the drive device 24, a vertical movement of the housing 25 is made possible, wherein, as a result, the holding device 20 can be moved back and forth between a starting position 21, which is spaced vertically downwards from the screw 12, and a holding or catching position 22, which is located directly opposite the screw 20.
The drive device 24 can comprise a pinion 26, to which pinion 26 the vertical movement of the force transmission means 23 is transmitted into a rotational movement. Here, the pinion 26 can be arranged on a shaft 27, the shaft 27 being driven manually 28 and/or by an electric motor 29.
It is also advantageous that the shaft 27 of the drive device 24 is operatively connected to a self-locking worm gear (not shown).
It is also possible that the holding device 20 is movably mounted on the housing 25 of the drive device 24, and in addition, the holding device 20 can comprise complementary elements for engaging with the nut 11.
The force transmission means 23 can be arranged substantially coaxially with the holding device 20 on the one hand and can also be arranged substantially coaxially with the screw 12 screwed on the other hand.
The force transmission device 23 can also be designed rigidly or movably or, in an advantageous manner, also as a roller chain.
It is particularly advantageous if the force transmission means 23 is screwably 19 connected to the screw 12 which is screwed.
Between the nut 11 and the second part 17, a sleeve (not shown) and/or a disk (not shown) can advantageously be arranged, wherein these can also be brought into the holding or catching position by means of the holding device 20.
Fig. 2 shows a device 2 according to a second embodiment as a second embodiment, wherein the device 2 is focused on a holding device 20 providing a fastening nut 30 of a preloading device 35 for a threaded connection at overhead assembly and disassembly.
The device 2 according to the representation of fig. 2 is located in the starting position 21, i.e. at the time of assembly, the holding device 20 transfers the preloading device 35 and its fastening nut 30 from this starting position 21 into the holding position 22 to be screwed together with the thread 31 of the screw 12.
In this holding position 22, the device 2 can be located on the one hand in the assembly position of the fastening nut 30 for the preloading device 35, or the holding device 20 can be located instead in the capture position 22 (disassembly of the fastening nut 30 for the preloading device 35 from the screw 12).
Thus, the device 2 according to fig. 2 is used for positioning the holding device 20 for the preloading device 35 and its fastening nut 30 for a threaded connection, wherein the threaded connection connects the first component 16 with the second component 17, and wherein the first component 16 and the second component 17 are arranged substantially horizontally and fixedly with respect to each other, and wherein the first component 16 is arranged outside the second component 17 in the vertical direction, when assembling and disassembling overhead.
The threaded connection comprises a screw 12, the screw 12 comprising a first part 14 and a second part 15, and wherein the first part 14 of the screw 12 at its vertically upper end is connected to a first component 16 (not shown), and wherein the second part 15 of the screw 12 passes through a hole 18, the hole 18 being arranged substantially vertically in a second component 17, and wherein the part of the second part 15 of the screw 12, which in its lower region projects vertically downwards out of the second component 17, comprises a thread 31 for fastening a preloading device 35 by means of a fastening nut 30 of the preloading device 35.
The holding device 20 brings the fastening nut 30 from the starting position 21 into the holding position 22 for screwing together with the screw 12 when assembling the preloading device 35 and its fastening nut 30, and/or enables the holding device 20 to be brought from the starting position 21 into the catching position 22 for unscrewing the fastening nut 30 of the preloading device 35 from the screw 12 when disassembling the fastening nut 30.
With the device 2 according to the invention, the screw 12 is both part of the threaded connection for connecting the first part 16 with the second part 17 and part of the device 2 for positioning the holding device 20.
At the lower end, the screw 12 comprises a device 19 for detachable connection to a force transmission means 23, wherein the force transmission means 23 is movably operatively connected with a drive device 24. The drive device 24 is fixedly mounted in a housing 25, wherein the housing 25 comprises at its vertical upper end a holding device 20 for the nut 11.
By means of the operative connection between the force transmission means 23 fastened to the screw and the drive device 24, a vertical movement of the housing 25 is made possible, wherein the holding device 20 can thus be moved back and forth between a starting position 21, which is spaced vertically downwards from the screw 12, and a holding or catching position 22, which is located directly opposite the screw 12.
The drive device 24 can comprise a pinion 26, the vertical movement of the force transmission means 23 onto the pinion 2 being transmitted into a rotational movement.
Here, the pinion 26 can be arranged on a shaft 27, the shaft 27 being driven manually 28 and/or by an electric motor 29.
It is also advantageous that the shaft 27 of the drive device 24 is operatively connected to a self-locking worm gear (not shown).
It is also possible that the holding device 20 is movably mounted on the housing 25 of the drive device 24, and in addition, the holding device 20 can comprise complementary elements for engaging with the nut 11.
The force transmission means 23 can be arranged substantially coaxially with the holding device 20 on the one hand and can also be arranged substantially coaxially with the screw 12 screwed on the other hand.
The force transmission means 23 can also be designed rigidly or movably or, in an advantageous manner, also as a roller chain.
It is particularly advantageous if the force transmission means 23 is connected to the screw 12 in a screwable manner 19.
It is also possible that the preloading device 35 is designed in a vertical direction in several parts, with the fastening nut 30 of the preloading device 35 at the vertical upper end, and wherein the vertical lower part is provided for engagement with the retaining device 20.
Reference numerals
1 device for threaded connection of nuts
Device for preloading a device and tightening a nut thereof
11 nut in threaded connection
12 screw-threaded screw
13 screw thread for a nut
14 first part of screw
15 second part of screw
16 first part
17 second part
18 holes
19 Detachable connecting device
20 holding device
21 starting position
22 holding or capturing position
23 force transmission device
24 drive device
25 casing
26 pinion
27 axle
28 manually driven
29 motor drive
30 fastening nut of preloading device
31 screw thread for preloading device
32 mount for holding a device
33 preloading device discs
34 guide sleeve for preloading device
35 preloading the device.

Claims (21)

1. A device (1) for positioning a holding device (20) for a threaded nut (11) during overhead assembly and disassembly,
wherein the threaded connection connects the first component (16) with the second component (17),
wherein the first part (16) and the second part (17) are arranged substantially horizontally and fixedly with respect to each other, and wherein the first part (16) is arranged above the second part (17) in a vertical direction,
wherein the threaded connection comprises a screw (12), the screw (12) comprising a first portion (14) and a second portion (15), and wherein the first portion (14) of the screw (12) at its vertical upper end is connected to the first component (16), and wherein the second portion (15) of the screw (12) passes through a hole (18) arranged substantially vertically in the second component (17), and wherein the portion of the second portion (15) of the screw (12) projecting vertically downwards out of the second component (17) in this region comprises a thread (13) for fastening the nut (11),
wherein the holding device (20) brings the nut (11) from a starting position (21) into a holding position for screwing together with the screw (12) when assembling the nut (11) and/or brings the holding device (20) from a starting position (21) into a capturing position for unscrewing the nut (11) from the screw (12) when disassembling the nut (11),
it is characterized in that
The screw (12) being both part of the threaded connection for connecting the first part (16) with the second part (17) and part of the device (1) for positioning the holding device (20),
wherein the screw (12) comprises at its lower end a connecting device (19) for detachable connection to a force transmission device (23), and the force transmission device (23) is movably operatively connected with a drive device (24),
wherein the drive device (24) is fixedly mounted in a housing (25) and the housing (25) comprises at its vertical upper end the holding device (20) for the nut (11),
wherein the operative connection between the force transmission means (23) and the drive device (24) enables a vertical movement of the housing (25), and wherein, as a result, the holding device (20) can be moved back and forth between the starting position (21), which is spaced vertically downwards from the screw (12), and the holding or catching position, which is located directly opposite the screw (12).
2. The device (1) according to claim 1,
it is characterized in that
The drive device (24) comprising a pinion (26), the vertical movement of the force transmission means (23) being transmitted to the pinion (26) as a rotational movement,
wherein the pinion (26) is arranged on a shaft (27), the shaft (27) being driven manually (28) and/or by an electric motor (29).
3. The device (1) according to claim 2,
it is characterized in that
The shaft (27) of the drive device (24) is operatively connected to a self-locking worm gear.
4. The device (1) according to any one of claims 1-3,
it is characterized in that
The holding device (20) is mounted movably on the housing (25) of the drive device (24).
5. The device (1) according to any one of claims 1-3,
it is characterized in that
The force transmission device (23) is arranged substantially coaxially with the holding apparatus (20).
6. The device (1) according to any one of claims 1-3,
it is characterized in that
The force transmission device (23) is arranged substantially coaxially with the screw (12) of the threaded connection.
7. Device (1) according to any one of claims 1-3, characterized in that the force transmission means (23) are designed to be rigid or movable.
8. Device (1) according to any one of claims 1-3, characterized in that
The force transmission device (23) is designed as a roller chain.
9. Device (1) according to any one of claims 1-3, characterized in that the force transmission means (23) is screwably connected to the screw (12) of the threaded connection.
10. Device (1) according to claim 1, characterized in that a guide sleeve and/or a disc is arranged between the nut (11) and the second part (17), wherein the guide sleeve and/or disc can also be brought from the holding device (20) into the holding or catching position.
11. A device (2) for positioning a retaining device (20) for a preloading device (35) and its fastening nut (30) for a threaded connection during overhead assembly and disassembly,
wherein the threaded connection connects the first component (16) with the second component (17),
wherein the first part (16) and the second part (17) are arranged substantially horizontally and fixedly with respect to each other, and wherein the first part (16) is arranged above the second part (17) in a vertical direction,
wherein the threaded connection comprises a screw (12), the screw (12) comprising a first part (14) and a second part (15), and wherein the first part (14) of the screw (12) at its vertically upper end is connected to the first component (16), and wherein the second part (15) of the screw (12) passes through a hole (18) arranged substantially vertically in the second component (17), and wherein a part of the second part (15) of the screw (12) projecting vertically downwards out of the second component (17) in this region comprises a thread (31) for fastening the preload device (35) by means of a fastening nut (30) of the preload device (35),
wherein the holding device (20) brings the tightening nut (30) from a starting position (21) into a holding position for screwing together with the screw (12) when assembling the preloading device (35) and its tightening nut (30), and/or brings the holding device (20) from a starting position (21) into a capturing position for unscrewing the tightening nut (30) of the preloading device (35) from the screw (12) when disassembling the tightening nut (30),
it is characterized in that
The screw (12) being part of both the threaded connection for connecting the first part (16) with the second part (17) and the device for positioning the holding device (20),
wherein the screw (12) comprises at its lower end a connecting device (19) for detachable connection to a force transmission means (23), and the force transmission means (23) is movably operatively connected to a drive device (24),
wherein the drive device (24) is fixedly mounted in a housing (25) and the housing (25) comprises at its vertical upper end the holding device (20) for the preloading device (35) and its fastening nut (30),
wherein the operative connection between the force transmission means (23) and the drive device (24) enables a vertical movement of the housing (25), and wherein, as a result, the holding device (20) can be moved back and forth between the starting position (21), which is spaced vertically downwards from the screw (12), and the holding or catching position, which is located directly opposite the screw (12).
12. Device (2) according to claim 11,
it is characterized in that
The drive device (24) comprising a pinion (26), the vertical movement of the force transmission means (23) being transmitted to the pinion (26) as a rotational movement,
wherein the pinion (26) is arranged on a shaft (27), the shaft (27) being driven manually (28) and/or by an electric motor (29).
13. Device (2) according to claim 12,
it is characterized in that
The shaft (27) of the drive device (24) is operatively connected to a self-locking worm gear.
14. Device (2) according to any one of claims 11-13,
it is characterized in that
The holding device (20) is mounted movably on the housing (25) of the drive device (24).
15. Device (2) according to any one of claims 11-13,
it is characterized in that
The retaining device (20) comprises complementary elements for engaging with the nut (11) of the tightening nut (30) of the preloading device (35).
16. Device (2) according to any one of claims 11-13,
it is characterized in that
The force transmission device (23) is arranged substantially coaxially with the holding apparatus (20).
17. Device (2) according to any one of claims 11-13,
it is characterized in that
The force transmission device (23) is arranged substantially coaxially with the screw (12) of the threaded connection.
18. Device (2) according to any one of claims 11-13, characterized in that the force transmission means (23) are designed to be rigid or movable.
19. Device according to any of claims 11-13, characterized in that
The force transmission device (23) is designed as a roller chain.
20. Device (2) according to any one of claims 11-13, characterized in that the force transmission means (23) is screwably connected to the screw (12) of the threaded connection.
21. Device (2) according to claim 11, characterized in that the preloading device (35) is formed in a plurality of parts in the vertical direction, and the fastening nut (30) of the preloading device (35) is located at a vertical lower end, and wherein the vertical lower part is provided for engagement with the holding device (20).
CN201710208933.3A 2016-03-31 2017-03-31 Device for positioning a holding device for a threaded connection during overhead assembly and disassembly Active CN107263075B (en)

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KR20170113109A (en) 2017-10-12
JP6818595B2 (en) 2021-01-20
DE102016205400A1 (en) 2017-10-05
CH712345A2 (en) 2017-10-13
CH712345B1 (en) 2021-03-31
JP2017185618A (en) 2017-10-12
KR102317061B1 (en) 2021-10-22

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