EP2871027A1 - Outil de serrage de boulon - Google Patents

Outil de serrage de boulon Download PDF

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Publication number
EP2871027A1
EP2871027A1 EP20130192354 EP13192354A EP2871027A1 EP 2871027 A1 EP2871027 A1 EP 2871027A1 EP 20130192354 EP20130192354 EP 20130192354 EP 13192354 A EP13192354 A EP 13192354A EP 2871027 A1 EP2871027 A1 EP 2871027A1
Authority
EP
European Patent Office
Prior art keywords
spindle
bolt
nut
thread
pull rod
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
Application number
EP20130192354
Other languages
German (de)
English (en)
Other versions
EP2871027B1 (fr
Inventor
Christoph Boehm
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hilti AG
Original Assignee
Hilti AG
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
Application filed by Hilti AG filed Critical Hilti AG
Priority to EP13192354.2A priority Critical patent/EP2871027B1/fr
Publication of EP2871027A1 publication Critical patent/EP2871027A1/fr
Application granted granted Critical
Publication of EP2871027B1 publication Critical patent/EP2871027B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B29/00—Accessories
    • B25B29/02—Bolt tensioners
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
    • B25B21/00—Portable power-driven screw or nut setting or loosening tools; Attachments for drilling apparatus serving the same purpose

Definitions

  • the present invention relates to a bolt tensioning tool for screwing a nut onto a bolt thread.
  • the bolt tensioning tool is in particular designed to stretch the bolt during the screwing of the nut.
  • US 2011/192257 A discloses a hydraulic bolt tensioning tool for securing a nut on a bolt.
  • the bolt tensioning tool has a pull nut, a hydraulic press and a socket.
  • the tension nut can be screwed onto the bolt.
  • the hydraulic press pushes the pull nut off the socket, stretching the bolt.
  • the base has a side window through which a key for moving the nut can be inserted.
  • the hydraulic bolt tensioning tool proves to be very advantageous for bolts of large diameter, since in this case the nuts can be clamped by hand without applying a large torque. In particular, no provision must be made to support the counter-moment.
  • the bolt tensioning tool serves for screwing a nut onto a bolt thread protruding from a workpiece.
  • the bolt tensioning tool has a pull rod which has a mouth with an internal thread for screwing onto the bolt thread.
  • a hollow spindle is arranged coaxially with the pull rod.
  • a roller screw has an internal thread in the spindle, an external thread on the drawbar and arranged between the spindle and pull rod, in the internal thread and the external thread engaging rollers.
  • a foot is provided for supporting the bolt tensioning tool in the setting direction, on the workpiece.
  • the roller screw is located on the part of the spindle in setting direction on the foot.
  • a nut provided for gripping the nut is coupled to the spindle by means of a torque-limited tractor.
  • the roller screw generates a tensile force that stretches the pin.
  • the pull rod pulls on the bolt, while the spindle is supported by the foot on the workpiece.
  • the roller screw drive is essential in order to effectively transfer the torque impressed by the spindle into the axial movement of the pull rod in the case of the high-acting forces.
  • the counter-moment can be applied to the workpiece by the adhesive force of the foot. The adhesive force increases with the increasing tensile force. The nut is dragged through the nut until the nut rests on the workpiece.
  • the rollers are preferably rotationally symmetrical.
  • the rollers can thus rotate about their own axis of rotation, without transmitting a torque or an axial force on the spindle and the tie rod.
  • the rollers have a plurality of teeth which are arranged along the axis of rotation at equal intervals. Each tooth has a self-contained closed head line, which engages both the internal thread of the spindle and in the external thread of the drawbar.
  • One embodiment provides a pivot bearing which is disposed along the axis between the spindle and the foot and decouples a rotational movement of the spindle from the foot.
  • a torque coupling couples the spindle with the pull rod.
  • the torque coupling helps to screw the jaw onto the bolt thread.
  • the torque coupling is sized to overcome the frictional force between the female thread of the jaw and the male thread.
  • the pull rod has a return mechanism.
  • the return mechanism has a shaft rotatably coupled to the spindle, a rotor guided on the shaft and provided for in the setting direction stop for the rotor.
  • the rotor is coupled via a spiral backdrop to the rotational movement of the shaft.
  • the runner is coupled to the drawbar via a straight line parallel to the drawbar.
  • the gate moves the rotor along the axis as the shaft rotates with the spindle. If the runner is inhibited in its movement in the setting direction by the stop, the shaft rotates indirectly through the runner the pull rod.
  • the shaft and spindle rotate in the same direction.
  • An embodiment provides that a pitch of the internal thread of the mouth is greater than a pitch of the internal thread of the spindle. This ensures that the nut can be held on the workpiece fitting.
  • Fig. 1 shows a bolt 1, which protrudes partially with a bolt thread 2 from a workpiece 3 .
  • a nut 4 is to be screwed onto the bolt thread 2 , so that there is a predefined tension between the bolt thread 2 and the nut 4 .
  • the bolt tightening tool 5 shown moves along an axis 6, counter to the setting direction 7 of the nut 4 on the bolt 1. Meanwhile, the nut 4 is rotated clockwise 8 about the axis 6 to the nut 4 in the setting direction 7 in contact with the workpiece 3 hold.
  • the bolt tensioning tool 5 is shown by way of example as an attachment for a screwdriver 9 .
  • the screwdriver 9 has an electric motor 10, which is fed from a battery pack 11 .
  • the electric motor 10 rotates an output shaft 13 about the axis 6.
  • the bolt tensioning tool 5 has a closure 14 which is rotatably mounted on the output shaft 13 , for example, a square or a left-hand thread.
  • the user can guide and hold the electric screwdriver 9 by means of a handle 15 during operation.
  • the screwdriver 9 may also include a hydraulic or pneumatic drive.
  • Fig. 2 shows the bolt tensioning tool 5 in greater detail.
  • the bolt tensioning tool 5 has a pull rod 16 arranged coaxially with respect to the axis 6.
  • the pull rod 16 has at its rear end in the setting direction 7 a mouth 17 which can grip the bolt thread 2 .
  • the bolt 1 is shown cut with his right half in the mouth 17 lying.
  • the mouth 17 is provided for this purpose with an internal thread 18 which is chosen to match the bolt thread 2 .
  • the internal thread 18 largely corresponds to the thread type the nut 4.
  • a pull mechanism 19 pulls the pull bar 16 supported on the workpiece 3 against the setting direction 7, and thereby stretches the bolt 1.
  • a nut 20 engages the nut 4.
  • a tugboat 21 rotates the nut 20 in the clockwise direction 8, and holds by the nut 4 in support on the workpiece 3.
  • the pulling mechanism 19 and the tractor 21 are driven by a spindle 22 .
  • the screwdriver 9 is coupled to the spindle 22 .
  • the drawbar 16 together with the pulling mechanism 19 and the nut 20 together with the tractor 21 are arranged within a supporting housing 23 .
  • the drawbar 16 and the spindle 22 are connected via a roller screw 24 .
  • the spindle 22 is hollow and has on its inside an internal thread 25.
  • the tie rod 16 is arranged coaxially within the hollow spindle 22 .
  • the pull rod 16 has an external thread 26.
  • Fig. 2 shows drawbar 16 and spindle 22 cut in the left half of the drawing, in the right half in a side view.
  • the two threads 25, 26 of the roller screw 24 are preferably more common. Their pitch and number of gears are the same.
  • the pitch of the internal thread 25 is less than the pitch of the internal thread 18 of the mouth 17.
  • the internal thread 25 of the spindle 22 does not engage in the external thread 26 of the tie rod 16 .
  • An annular cavity surrounding the pull rod 16 spaces the two threads 25, 26 from each other.
  • a plurality of rollers 27 are circumferentially arranged around the internal thread 25 distributed in the cavity.
  • One of the rollers 27 is shown in the left half of the picture, in the right half of the image, the roller 27 for showing the threads 25, 26 of pull rod 16 and spindle 22 is not shown.
  • the axes of rotation 28 of the rollers 27 are arranged parallel to the axis 6 at an equal radial distance from the axis 6 .
  • Each of the rollers 27 has a toothing 29 which engages both the internal thread 25 and the external thread 26 .
  • the toothing 29 consists of a plurality of teeth 30 which lie in planes perpendicular to the axis of rotation 28 .
  • the toothing 29 is preferably rotationally symmetrical with corresponding disc-shaped teeth 30.
  • the distance along the axis of rotation 28 between the teeth 30 is equal to the pitch of the internal thread 25 and the external thread 26.
  • the rollers 27 are held in a cage 31 , which their distance in the direction of rotation determines the axis 6 .
  • the exemplary cage 31 may rotate relative to the spindle 22 .
  • the rollers 27 may be provided with a thread which is designed with the same pitch as the internal thread 25 .
  • the spindle 22 may be fixed in the housing 23 along the axis 6 .
  • the spindle 22 has a slight axial play and is biased by a spring 32 counter to the setting direction 7 .
  • the spindle 22 is supported in the setting direction 7 via a rotary or roller bearing 33 on the housing 23 .
  • the Housing 23 may for example be provided with a corresponding projection 34 or the output-side bearing shell anchored in the housing 23 .
  • the drawbar 16 is along the axis 6 relative to the spindle 22 and corresponding to the housing 23 movable.
  • the roller screw 24 forces a relative axial movement of the drawbar 16 and the spindle 22, when they perform a relative rotational movement to each other.
  • the relative to the pull rod 16 rotated clockwise 8 spindle 22 leads to a movement of the drawbar 16 against the setting direction 7.
  • the held by the mouth 17 of the tie rod 16 bolt 1 is thereby stretched by a tensile force.
  • the opposing force introduces the bolt tensioning tool 5 with a foot 35 into the workpiece 3 .
  • the foot 35 is placed in the setting direction 7 on the workpiece 3 spaced from the bolt 1 .
  • the foot 35 is preferably a sleeve-shaped end portion of the housing 23.
  • a footprint 36 of the foot 35 is, for example, annular.
  • the nut 20 is attached to the nut 4 .
  • the nut 20 has one or more key surfaces 137 abutting the outer contour of the nut 4 for transmitting torque.
  • the nut 20 is formed complementary to the nut 4 , for example with a hexagonal prismatic cavity.
  • the tractor 21 couples the nut 20 to the spindle 22 torque-limited.
  • the exemplary tractor 21 has a friction based torque limit.
  • the tractor 21 has two clutch plates 38, 39, between which a stack of prestressed disc springs 40 is arranged.
  • the clutch plates 38, 39 are fixed to the housing 23 in the axial direction.
  • the spindle 22 drives the one clutch disc 38 to rotate about the axis 6 .
  • the spindle 22 is supported in the setting direction 7 on the clutch disc 38 .
  • the other clutch disc 39 is coupled to the nut 20 .
  • the nut 4 is continuously held in contact with the workpiece 3 , while the bolt 1 is stretched by the tie rod 16 .
  • the transmitted torque is sufficient to overcome the friction of the nut 4 in the tensioned bolt 1 .
  • the torque is less than a rated torque to which a torque wrench is set to set the nut 4 .
  • the tractor 21 can not thus tension the bolt 1 by means of the nut 4 .
  • Exemplary torque limits depend on the nut 20 , ie, the diameter of the nut 4 and bolt 1.
  • the range for the limit is between 5% and 30% of the rated torque.
  • the rated torque is in good estimate the diameter in the third power multiplied by 50 MN / m2, eg 400 Nm for a 20 mm bolt 1.
  • the tractor 21 may include a freewheel 41 which transmits torque only in the clockwise direction 8 .
  • the spindle 22 is coupled via a gear 42 with a drive spindle 37 of the bolt tensioning tool 5 .
  • the drive spindle 37 is suitably connected to the output shaft 13 of the electric screwdriver 9 or a motor 10 .
  • the bolt tensioning tool 5 is connected to the electric screwdriver 9 only via the drive spindle 37 .
  • the housing 23 has no rotationally fixed mechanical coupling with the electric screwdriver 9 or the motor 10.
  • the transmission 42 preferably includes one or more planetary gear stages.
  • a planetary stage includes a sun gear 43, a plurality of planets 44 on a planet carrier 45, and a ring gear 46.
  • the sun gear 43 of the first planetary stage is rotatably connected to the drive spindle 37 .
  • the ring gear 46 of the stages is rotatably connected to the housing 23 .
  • the planet carrier 45 is preferably non-rotatably connected to the sun gear of the next planetary stage.
  • the planet carrier 47 of the last stage is rotatably connected to the spindle 22 .
  • the planetary gear stages preferably mesh all with the common ring gear 46.
  • the gearbox 42 reduces the speed of the drive spindle 37 to the spindle 22 and increases the torque accordingly.
  • the counter-torque for the transmission 42 is supported by the ring gears on the housing 23 .
  • the housing 23 with the ring gear 46 is freely rotatable relative to the drive spindle 37 . Due to the friction of the foot 35 with the workpiece 3, in particular when the pull rod 16 builds a tension, the counter-torque can be applied.
  • the housing 23 is rotatable relative to the electric screwdriver 9 . The counter-torque can thus not affect the user.
  • the transmission 42 may include a torque clutch 48 which, at low torque, couples the drive shaft 37 directly to the housing 23 .
  • the drive spindle 37 thus rotates the housing 23 and the drive spindle 37 synchronously.
  • the transmission 42 is bridged.
  • the torque coupling 48 includes, for example, a spring 49, such as a plate spring, which is clamped along the axis 6 between the housing 23 and a collar 50 of the drive spindle 37 .
  • An additional washer 51 may support the spring 49 .
  • the disc 51 has axially extending projections 52 along the circumferential direction .
  • the housing 23 also has axial projections 53.
  • the projections 52, 53 are circumferentially offset from one another in a first position of the disc 51 , whereby the spring 49 can be relaxed , and a second position in axial alignment, whereby the spring 49 is biased to transmit the torque.
  • the transmittable torque is preferably greater than the friction forces of the nut 4 on the bolt thread 2 and the mouth 17 on the bolt thread 2.
  • the transmittable torque is limited in view of the holding force of the user this must apply the corresponding counter-torque. As explained below, no great holding force of the user is necessary for the function of the bolt tensioning tool 5 . Therefore, the torque clutch 48 advantageously disconnects at a low torque in the range between 2 Nm (Newton meters) to 10 Nm, which a user can hold with one hand in a typical electric screwdriver.
  • the bolt tensioning tool 5 tensions the bolt 1 and unscrews the nut 4 as follows.
  • the user uses the bolt 1 and screwed the nut 4 vorzugswiese by hand to rest on the workpiece 3 .
  • the user sets the mouth 17 on the exposed upper end of the bolt thread 2 .
  • the bolt thread 2 must project so far beyond the workpiece 3 that the foot 35 does not yet touch the workpiece 3 .
  • the user turns on the motor 10, or the electric screwdriver 9 .
  • the mouth 17 and the housing 23 initially exert only a slight counter-torque. The counter-torque results from the acceleration and possibly internal friction.
  • the torque clutch 48 if present, bridges the transmission 42, causing the spindle 22 to rotate at the speed of the drive spindle 37 , otherwise squashed by the transmission 42.
  • the roller screw 24 rotates the pull rod 16 in synchronism with the spindle 22 while rotating the jaw 17 on the bolt thread 2 .
  • the process changes when the foot 35 touches the workpiece 3 .
  • the mouth 17 can no longer rotate moment-free on the bolt thread 2 . Since the roller screw 24 can transmit only a small torque, pull rod 16 and spindle 22 are rotationally decoupled.
  • the pull rod 16 stops while the spindle 22 is further driven to rotate. However, the roller screw 24 forces on the pull rod 16 an axial force against the setting direction 7.
  • the bolt 1 is stretched.
  • the tractor 21 retracts the nut 4 when it lifts off from the workpiece 3 due to the extended bolt 1 .
  • the setting process is terminated when the applied tension reaches a predetermined setpoint.
  • the tensile stress correlates with the torque which is introduced at the drive spindle 37 .
  • a limitation of the introduced torque can be adjusted, for example, by means of the overload clutch 54 integrated in an electric screwdriver 9 .
  • the direction of rotation of the drive spindle 37 is reversed to unscrew the mouth 17 of the bolt thread 2 .
  • a return mechanism 55 ensures that while the pull rod 16 is brought a defined basic position. In the basic position, the pull rod 16 has advanced furthest in the setting direction 7 relative to the spindle 22 .
  • Fig. 2 shows an exemplary return mechanism 55.
  • the pull rod 16 is hollow.
  • the return mechanism 55 has a threaded shaft 56 disposed in the hollow pull rod 16 .
  • the shaft 56 is connected to the drive spindle 37 or the Spindle 22 coupled, whereby both rotate together with the same direction of rotation.
  • a rotor 57 with a complementary thread sits on the shaft 56.
  • the rotor 57 has a groove 58, engages the tie rod 16 with a web 59 .
  • the web is preferably parallel to axis 6 and rectilinear.
  • a relative rotational movement of the shaft 56 to the tie rod 16 causes an axial movement of the rotor 57.
  • the sense of rotation of the thread of the shaft 56 is selected so that when the shaft 56 rotates clockwise 8 faster than the tie rod 16 , ie during the tightening of the Bolts 1, the rotor 57 moves against the setting direction 7 .
  • a stop 60 is arranged in the setting direction 7 of the rotor 57 . As soon as the rotor 57 bears against the stop 60 , the shaft 56 forcibly rotates the pull rod 16 . The counterclockwise 8 rotated shaft 56 now rotates the pull rod 16 with the mouth 17 also counterclockwise 8 and thus of bolt thread 2 from.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
EP13192354.2A 2013-11-11 2013-11-11 Outil de serrage de boulon Not-in-force EP2871027B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13192354.2A EP2871027B1 (fr) 2013-11-11 2013-11-11 Outil de serrage de boulon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP13192354.2A EP2871027B1 (fr) 2013-11-11 2013-11-11 Outil de serrage de boulon

Publications (2)

Publication Number Publication Date
EP2871027A1 true EP2871027A1 (fr) 2015-05-13
EP2871027B1 EP2871027B1 (fr) 2016-10-05

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EP13192354.2A Not-in-force EP2871027B1 (fr) 2013-11-11 2013-11-11 Outil de serrage de boulon

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017211749A1 (fr) * 2016-06-07 2017-12-14 Newfrey Llc Appareil de test pour test de raccord d'assemblage
JP6479248B1 (ja) * 2018-12-11 2019-03-06 株式会社東日製作所 締付装置
JP6479249B1 (ja) * 2018-12-11 2019-03-06 株式会社東日製作所 締付装置
CN109605284A (zh) * 2019-01-31 2019-04-12 中国工程物理研究院机械制造工艺研究所 一种螺栓预紧拉伸装置及方法
WO2020126095A1 (fr) * 2018-12-21 2020-06-25 Caterpillar Energy Solutions Gmbh Dispositif pour tendre un élément de liaison
WO2020126098A1 (fr) * 2018-12-21 2020-06-25 Caterpillar Energy Solutions Gmbh Dispositif pour tendre un élément de liaison
EP3733349A1 (fr) * 2019-04-30 2020-11-04 Hohmann, Frank Dispositif de serrage pour un raccordement à vis
CN112475873A (zh) * 2020-12-31 2021-03-12 无锡市嘉立德科技有限公司 一种高通用性高速自动打螺丝装置
CN112584977A (zh) * 2018-06-20 2021-03-30 帕腾科技快推有限公司 用于拧紧螺栓上的螺母以形成固定连接的工具
GB2580102B (en) * 2018-12-21 2021-08-25 Caterpillar Energy Solutions Gmbh System for tensioning at least one connecting element

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021195409A1 (fr) 2020-03-25 2021-09-30 Milwaukee Electric Tool Corporation Outil de serrage de boulon

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1387895A (en) * 1918-11-26 1921-08-16 James P Mcbride Bolting-up and plate-tightening machine
SU1106651A1 (ru) * 1982-06-07 1984-08-07 Предприятие П/Я В-8721 Устройство дл сборки резьбовых соединений
CS233115B1 (cs) * 1983-06-29 1985-02-14 Jan Mlynarik Zařízení pro utahování a předepínání nebo povolování šroubů a matic
JPH0825244A (ja) * 1994-07-21 1996-01-30 Besutoma Kk ボルト継手における締結力の管理装置
US20110192257A1 (en) 2010-02-09 2011-08-11 Titan Technologies International, Inc. Hydraulic Bolt Tensioner and Nut

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1387895A (en) * 1918-11-26 1921-08-16 James P Mcbride Bolting-up and plate-tightening machine
SU1106651A1 (ru) * 1982-06-07 1984-08-07 Предприятие П/Я В-8721 Устройство дл сборки резьбовых соединений
CS233115B1 (cs) * 1983-06-29 1985-02-14 Jan Mlynarik Zařízení pro utahování a předepínání nebo povolování šroubů a matic
JPH0825244A (ja) * 1994-07-21 1996-01-30 Besutoma Kk ボルト継手における締結力の管理装置
US20110192257A1 (en) 2010-02-09 2011-08-11 Titan Technologies International, Inc. Hydraulic Bolt Tensioner and Nut

Cited By (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017211749A1 (fr) * 2016-06-07 2017-12-14 Newfrey Llc Appareil de test pour test de raccord d'assemblage
CN112584977B (zh) * 2018-06-20 2022-09-27 快推有限公司 用于拧紧螺栓上的螺母以形成固定连接的工具
CN112584977A (zh) * 2018-06-20 2021-03-30 帕腾科技快推有限公司 用于拧紧螺栓上的螺母以形成固定连接的工具
WO2020121550A1 (fr) * 2018-12-11 2020-06-18 株式会社東日製作所 Dispositif de serrage
JP6479249B1 (ja) * 2018-12-11 2019-03-06 株式会社東日製作所 締付装置
JP2020093319A (ja) * 2018-12-11 2020-06-18 株式会社東日製作所 締付装置
JP2020093320A (ja) * 2018-12-11 2020-06-18 株式会社東日製作所 締付装置
US11772213B2 (en) 2018-12-11 2023-10-03 Tohnichi Mfg.Co., Ltd. Tightening device
WO2020121549A1 (fr) * 2018-12-11 2020-06-18 株式会社東日製作所 Dispositif de serrage
JP6479248B1 (ja) * 2018-12-11 2019-03-06 株式会社東日製作所 締付装置
TWI693127B (zh) * 2018-12-11 2020-05-11 日商東日製作所股份有限公司 緊固裝置
US11364580B2 (en) 2018-12-11 2022-06-21 Tohnichi Mfg. Co., Ltd. Fastening device
WO2020126098A1 (fr) * 2018-12-21 2020-06-25 Caterpillar Energy Solutions Gmbh Dispositif pour tendre un élément de liaison
CN113518692A (zh) * 2018-12-21 2021-10-19 卡特彼勒能源方案有限公司 用于张紧连接元件的装置
US12048989B2 (en) * 2018-12-21 2024-07-30 Caterpillar Energy Solutions Gmbh Device for tensioning a connecting element
GB2580104B (en) * 2018-12-21 2021-04-28 Caterpillar Energy Solutions Gmbh Device for tensioning a connecting element
CN113195166A (zh) * 2018-12-21 2021-07-30 卡特彼勒能源方案有限公司 用于张紧连接元件的装置
GB2580102B (en) * 2018-12-21 2021-08-25 Caterpillar Energy Solutions Gmbh System for tensioning at least one connecting element
GB2580090B (en) * 2018-12-21 2021-08-25 Caterpillar Energy Solutions Gmbh Device for tensioning a connecting element
US12023788B2 (en) 2018-12-21 2024-07-02 Caterpillar Energy Solutions Gmbh Device for tensioning a connecting element
US20220080569A1 (en) * 2018-12-21 2022-03-17 Caterpillar Energy Solutions Gmbh Device for Tensioning a Connecting Element
CN113518692B (zh) * 2018-12-21 2023-03-10 卡特彼勒能源方案有限公司 用于张紧连接元件的装置
GB2580104A (en) * 2018-12-21 2020-07-15 Caterpillar Energy Solutions Gmbh Device for tensioning a connecting element
WO2020126095A1 (fr) * 2018-12-21 2020-06-25 Caterpillar Energy Solutions Gmbh Dispositif pour tendre un élément de liaison
CN109605284A (zh) * 2019-01-31 2019-04-12 中国工程物理研究院机械制造工艺研究所 一种螺栓预紧拉伸装置及方法
EP3733349A1 (fr) * 2019-04-30 2020-11-04 Hohmann, Frank Dispositif de serrage pour un raccordement à vis
CN112475873B (zh) * 2020-12-31 2022-04-08 无锡市嘉立德科技有限公司 一种高通用性高速自动打螺丝装置
CN112475873A (zh) * 2020-12-31 2021-03-12 无锡市嘉立德科技有限公司 一种高通用性高速自动打螺丝装置

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