DE202010007235U1 - Device for screwing and unscrewing bolts and screws by means of a motor-driven screwing tool - Google Patents

Abstract

Device for screwing and unscrewing bolts and screws by means of a motor-driven screwing tool, which is preferably used in the track area of railway facilities,
characterized in that
an off-center to the vertical axis of the device arranged pipe (1) is arranged, wherein the device
• in the upper area
- A via a sleeve (2) on the tube (1) fixed height-adjustable handle (3) is arranged, which has a on / off switch (5) and a switch (4) for clockwise and counterclockwise rotation,
A torque-adjustable torque indicator (6) is arranged with a switch (7),
• in the middle area
A motor (9) with, preferably directly attached, detachable accumulator block (10),
- And a rotatable handle (8) is arranged,
• in the area below
- A transmission (12) and attached thereto
- Gear (13) with a mounting pin (16) and
- A counter attached to the gear (15) ...

Description

The The invention relates to a device for screwing in and out of Bolts and screws by means of a motor-driven screwing tool, which is preferred in the track area of railway technical systems is used.

in the Track area of railway facilities are many possibilities for one Use of small screwing machines available to the most varied Screw in and unscrew screws and bolts or retighten. Such universal screwdrivers are on the part of various Companies offered and put on the tracks by means of a trolley as well as over an internal combustion engine driven. They are preferred for dressing or unscrewing hook and sleeper screws used. disadvantage This screwing is their high weight, which between of about 100 kg and the use of at least two people to Implementation is required. As railway facilities are often in difficult and difficult to access terrain is a transport of such heavy screwdrivers often very elaborate and for the affected workforce with considerable physical Problems connected.

Out the AS 1 087 537 is a device for screwing and unscrewing known from bolts, which has a carriage on the side a screwing tool is arranged, which is displaceably mounted is.

Of the described impact wrench has an electric drive and needed a power connection that does not always exist on the track construction sites is.

Known are still battery impact wrench. However, these often show too low a power or too high energy consumption on what adversely affects productivity. Further, these are equipment still unwieldy and sometimes too heavy. Also needed regularly to their activity both hands, because these impact wrenches are pulled diagonally through the often heavy battery be and not one-handed can be centered on the screw or bolt. One Another disadvantage is that there is no sufficient Verspanngenauigkeit the tightened screws can be achieved.

Of the Invention has for its object to develop a device which allows screws, mothers and bolt preferably in the railway technical use reliable and effectively turn on and off, the device being light weight and should have a high performance with long use times and with one hand too is operating. Furthermore, the machine should have high torque as well have high accuracy of the tension.

• • im oberen Bereich – ein über eine Hülse am Rohr befestigter höhenverschiebbarer Griff angeordnet ist, der einen An-/Ausschalter und einen Umschalter für Rechts- und Linkslauf aufweist, – eine das notwendige Drehmoment einstellbare Drehmomentenanzeige angeordnet ist,
• • im mittleren Bereich – ein Motor mit daran direkt befestigtem, abnehmbaren Akkublock, – sowie ein drehbarer Haltegriff angeordnet ist,
• • im unteren Bereich – ein Getriebe und daran ansetzendes – Zahnrad mit einem Befestigungszapfen und – einem am Zahnrad befestigten Gegenhalter

aufweist.This is inventively achieved in that
arranged off-center to the vertical axis of the device disposed pipe, wherein the device

• • in the upper part - a height-adjustable handle fastened to the pipe via a sleeve is arranged, which has an on / off switch and a changeover switch for clockwise and counterclockwise rotation, - a torque-adjustable torque indicator is arranged,
• • in the middle area - a motor with detachable battery block directly attached to it, - as well as a rotatable handle,
• • in the lower part - a gearbox and attached gear - with a fixing pin and - a counter-holder attached to the gear

having.

Of the Counterholder is on the circumference of the gear as a circumferential clamping collar or in a similar way Way is attached and has a lateral arm, on which a vertically arranged plate is fixed, which is located in the Application area flat on the side of the rail head or on the rail web. Of the Counterholder is formed on both sides. He can use it extensively be applied to each rail head or -Steg and lies then even if the screw or bolt has been screwed in or out is, d. H. the counterpart is during the entire screwing cycle effective.

Preferably The plate of the counter-holder should have a dimension of 100 to 200 m length and 20 to 60 mm in height exhibit. The lateral boom preferably points to the vertical axis a deflection of 50 mm to 100 mm.

Of the Tenon can be designed as a square or hexagon or octagon be and serves to accommodate a screwing.

When Screwing tool comes a nut or another tool used.

The Pipe is off-center in this respect arranged to the vertical axis of the device, so that a weight balance to the battery pack takes place, so that hanging freely the device vertical is aligned.

The Revolutions are dependent on Torque can be changed according to the respective load. The torque should be in the range of about 150 Nm to 1000 Nm.

The the screwing over a height-adjustable Boom connected to a rail car and attached to this is.

Of the Railcar has a container for the Recording an (additional) battery or an aggregate. The battery or the unit is doing with the screwing over the height-adjustable Boom electrically connected.

in the lower area of the machine is a suitable, preferably LED lighting.

Advantages of the invention:

• - the Screwing device is lightweight and universally applicable,
• - of the upper handle is height adjustable on the tube accomplished and can be the size of the worker be adjusted,
• - the Tube is off-center attached, which leads to that a balance is made to the battery and the device one-handed guided and be easily centered on the screw or bolt can, without the second hand for this who use
• - the Attachment of a special counterholder with side arm allows It allows the operator to better align the device and during the process complete on or Ausschraubvorganges exactly on the rail head to lead,
• - of the In the middle region of the device arranged on the tube handle is rotatable and adaptable to the specific application,
• - the Device can be used as a pure handheld device and with the help of the rail car as a track-mounted combi unit be used
• - by arranged in the upper region of the tube adjustable torque indicator, the device can be variably adapted to local conditions become,
• - by the use of an electronically controlled electric motor is the optimum number of revolutions and a high clamping accuracy,
• - the Lighting installed at the bottom of the machine allows for Use even at night.

embodiment

Based an embodiment below, the invention will be more closely understood explained become.

there demonstrate:

1 - The device in cross section

2 - The device with rail cars in cross section

In the upper part of the pipe 1 is over the sleeve 2 the height-adjustable handle 3 arranged that the switch 4 for the right / left rotation and the on / off switch 5 having. At the top of the tube 1 is the adjustable torque indicator 6 with the switch 7 for the 1st / 2nd Gear arranged.

In the middle area of the device is on the tube 1 the rotatable handle 8th and the electric motor 9 arranged. At the engine 9 is directly the removable battery pack 10 attached. However, it is also possible an indirect attachment of the battery pack 10 on the electric motor 9 ,

At the engine 9 is the LED lighting 11 ,

Below the engine 9 is the transmission 12 arranged in which a gear 13 engages, on which over a circumferential clamping collar of the lateral boom 14 with counterhold 15 is appropriate.

In the gear 13 engages the mounting pin 16 one that represents the receptacle for a screwing tool (nut).

The counterpart 15 lies on the side surface of the rail head 17 or in another form on the rail bridge.

Alternatively, the device may also be attached to a railcar 18 with height-adjustable and swiveling boom 19 be attached. The rail car 18 has a container 20 for the inclusion of an (additional) battery 21 or a rechargeable battery. The (additional) battery 21 is via a cable with the electric motor 9 connected.

1

pipe

2

shell

3

height sliding Handle

4

switch for right / left rotation

5

On / OFF switch

6

torque indicator

7

switch for 1./2. corridor

8th

handle

9

engine

10

battery pack

11

LED lighting

12

transmission

13

gear

14

lateral boom

15

backstop

16

fastening pins

17

railhead

18

railcars

19

lateral boom

20

container

21

(Additional) Battery

Claims (10)

Device for screwing and unscrewing bolts and screws by means of a motor-driven screwing tool, which is preferably used in the track area of railway facilities, characterized in that an off-center to the vertical axis of the device arranged pipe ( 1 ) is arranged, wherein the device • in the upper area - a via a sleeve ( 2 ) on the pipe ( 1 ) fixed height-adjustable handle ( 3 ) having an on / off switch ( 5 ) and a switch ( 4 ) for clockwise and anti-clockwise rotation, - a torque indicator which can be adjusted to the required torque ( 6 ) with a switch ( 7 ), • in the middle area - an engine ( 9 ) with it preferably directly attached, removable battery pack ( 10 ), - and a rotatable handle ( 8th ), • in the lower area - a gearbox ( 12 ) and attached to it - gear ( 13 ) with a mounting pin ( 16 ) and - a counter-holder attached to the gear ( 15 ) having. Device according to claim 1, characterized in that the counter-holder ( 15 ) is attached to the circumference of the gear as a circumferential clamping collar and a lateral arm ( 14 ), to which a vertically arranged plate is fastened, which in the case of application laterally abuts the rail head or the rail web. Device according to claim 2, characterized in that the pin ( 16 ) is designed as a square or hexagon or octagon and serves to receive a screwing tool. Apparatus according to claim 2 and 3, characterized in that as a screwing tool a nut or other tool is used. Apparatus according to claim 1 to 4, characterized in that the tube ( 1 ) Is arranged eccentrically to the vertical axis of the device, so that a weight compensation takes place to the battery pack, so that the device is vertically aligned freely suspended. Apparatus according to claim 1 to 5, characterized in that the number of revolutions in dependence on the torque accordingly the respective load changeable are. Apparatus according to claim 1 to 6, characterized in that the screwing device via a height-adjustable boom ( 14 ) with a rail car ( 18 ) is connected and attached to this. Apparatus according to claim 7, characterized in that the rail car ( 18 ) a container ( 20 ) for receiving an (additional) battery ( 21 ) or aggregates. Apparatus according to claim 1 to 8, characterized in that this is preferably a lighting in the lower area (Gear or motor). Apparatus according to claim 1 to 9, characterized in that the torque corresponding to the respective screw connection is adjustable.