EP3408058B1 - Hammer device - Google Patents
Hammer device Download PDFInfo
- Publication number
- EP3408058B1 EP3408058B1 EP17702830.5A EP17702830A EP3408058B1 EP 3408058 B1 EP3408058 B1 EP 3408058B1 EP 17702830 A EP17702830 A EP 17702830A EP 3408058 B1 EP3408058 B1 EP 3408058B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- impact force
- impact
- axial direction
- storage means
- tool
- 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.)
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Links
- 238000003860 storage Methods 0.000 claims description 59
- 230000007246 mechanism Effects 0.000 claims description 49
- 229920001971 elastomer Polymers 0.000 claims description 22
- 239000000806 elastomer Substances 0.000 claims description 22
- 239000002184 metal Substances 0.000 claims description 5
- 230000003116 impacting effect Effects 0.000 claims 1
- 239000000463 material Substances 0.000 description 7
- 239000004568 cement Substances 0.000 description 5
- 238000004140 cleaning Methods 0.000 description 5
- 230000008878 coupling Effects 0.000 description 5
- 238000010168 coupling process Methods 0.000 description 5
- 238000005859 coupling reaction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 230000001739 rebound effect Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000004146 energy storage Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000009527 percussion Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/02—Percussive tool bits
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
- B07B1/50—Cleaning
- B07B1/52—Cleaning with brushes or scrapers
- B07B1/526—Cleaning with brushes or scrapers with scrapers
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- B08B1/165—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/08—Means for retaining and guiding the tool bit, e.g. chucks allowing axial oscillation of the tool bit
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0003—Details of shafts of percussive tool bits
- B25D2217/0007—Shaft ends
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2222/00—Materials of the tool or the workpiece
- B25D2222/21—Metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2222/00—Materials of the tool or the workpiece
- B25D2222/54—Plastics
- B25D2222/57—Elastomers, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/005—Adjustable tool components; Adjustable parameters
Definitions
- the present invention relates to a hammer device according to the preamble of claim 1 and as from U.S. 4,548,278 A disclosed.
- a ball mill is used in the cement industry, which are generally used for the coarse, fine and ultra-fine comminution or homogenization of ground material.
- a ball mill consists of a grinding chamber that can be set in rotation, in which the material to be ground can be comminuted by grinding media, for example in spherical form.
- the grinding chamber can be separated into individual chambers by one or more partition walls, which are usually designed as grids.
- the first chamber can then be filled with the largest balls and the other chambers with smaller and smaller balls. In cement mills, this separation is carried out continuously by means of Gattier armoring, ie by separating the balls by means of impulses on bevelled grids.
- the mill can be powered by a central opening in one of the end walls can be filled with the material to be shredded.
- the discharge depends on the design. In the case of dry mills, the ground material is discharged through slots in the pipe wall at the end of the mill. The grinding media are retained in this way.
- the added slots can reduce the throughput and thus the profitability of the ball mill, which is why the slot walls have to be cleaned regularly to remove the stuck clamping bodies.
- this has usually been done by manual methods using manual striking tools or manual lever tools, by means of which the clamping bodies are driven further through the slot by a person (in the axial direction) or driven out of the slot again against the entry direction of the clamping body (in the opposite direction to the axis) or manually be levered out to the slot entry side.
- This can be very labor-intensive and time-consuming as well as strenuous and also does not always lead to the desired cleaning of the slots.
- the DE 10 2011 007 050 B4 describes a tool for loosening a component, in particular for pulling out an injection nozzle.
- the tool has a frame which has two longitudinal members spaced apart from one another, a rear cross member extending between the two longitudinal members and a front cross member extending between the two longitudinal members.
- the tool also has a coupling element which is provided in the area of the rear cross member, extends in the direction of the front cross member and is used to couple a head of a pneumatic hammer.
- the tool also has a traction device, which in the area of the front cross member is provided, extends in a direction facing away from the rear cross member and is used to couple the assembly to be detached.
- the DE 10 2011 007 050 B4 a commercially available, hand-held pneumatic hammer can be coupled in such a way that the compressive force of the pneumatic hammer in its axial direction can be converted into a tensile force on the component to be loosened in the opposite axial direction by means of the tool.
- a pressure-generating vibration blow from the pneumatic hammer can be converted via the tool into a vibration train acting on the component to be loosened.
- the tool can use the DE 10 2011 007 050 B4 a compressive force can be converted into a tensile force on the component to be detached.
- the compressive force of the pneumatic hammer and the tensile force of the tool act along a common longitudinal axis of the pneumatic hammer.
- the disadvantage here is that the tool DE 10 2011 007 050 B4 only forces, in particular tensile forces, can be exerted in one direction, namely in the counter-axial direction of the pneumatic hammer.
- Another disadvantage is that the tool of the DE 10 2011 007 050 B4 only forces can be exerted on a component to be detached, which by means of a coupling with the tool of the DE 10 2011 007 050 B4 can be connected.
- One object of the present invention is to provide a hammer device of the type described at the outset, so that forces can be exerted both in the axial direction and in the counter-axial direction.
- the present invention relates to a hammer device such as an air hammer.
- This hammer device can preferably be hand-operated, i.e. held and guided by one person as the operator in one hand or with both hands.
- the hammer device can also be guided by a device such as a machine.
- the hammer device has an impact mechanism which is designed to be able to impact a tool in the axial direction.
- the tool can be received by the hammer device by means of a holding means.
- the axial direction denotes one of the two directions of the longitudinal axis of the hammer device.
- this hammer device is characterized by at least one impact force storage means which is designed to at least partially store an impact force of the impact mechanism in the axial direction and at least partially release it again as an impact force in the counter-axial direction.
- the opposite axis direction denotes the direction of the longitudinal axis of the hammer device, which is oriented opposite to the axial direction.
- An impact force storage means is understood to mean any means which is able to receive kinetic energy in the axial direction and at least partially, preferably as completely as possible, to release it again in the counter-axial direction.
- the impact force storage means can be an elastic means but also a rigid means such as an impact body, in particular made of metal, which can direct the kinetic energy of the impact mechanism from the axial direction into the counter-axial direction by means of an impact effect.
- the hammer device according to the invention is provided with an impact function which can act along the longitudinal axis of the hammer device in both directions, ie both in the axial direction and in the counter-axial direction.
- an impact function which can act along the longitudinal axis of the hammer device in both directions, ie both in the axial direction and in the counter-axial direction.
- clamping bodies in the grids of a ball mill can both be driven further through the slot in the axial direction by means of the hammer device according to the invention and again in a counter-axial direction counter to the entry direction of the clamping body driven out of the slot.
- This can simplify, improve, accelerate or even enable the cleaning of such grids from clamping bodies.
- the cleaning effort can be reduced by the support of such a hammer device.
- the clamping bodies located in the openings or slots of the grids of a ball mill can be released from the opening or slot faster and with less wear and tear and then removed, either with a pulling action or recoiling in the direction of the slot entry side or with a penetration towards the slot exit side than previously known.
- the tool can preferably be subjected to high energy in the axial direction so that, for example, slots clogged with clamping bodies can be cleaned in the slot wall of a ball mill in the direction of the slot exit side.
- the hammer device according to the invention can also be used to loosen bolts, nails, stuck chisels, drill rods, etc., provided that a suitable rigid or flexible tool can be used from behind or a fixed coupling to the clamping body with an intermediate component that can only be subjected to tensile loads (e.g. rope ) can be made possible.
- a suitable rigid or flexible tool can be used from behind or a fixed coupling to the clamping body with an intermediate component that can only be subjected to tensile loads (e.g. rope ) can be made possible.
- This possibility of impact execution in both directions of the longitudinal axis of the hammer device is achieved according to the invention in that the impact on the tool in the axial direction via the hammer mechanism of the hammer device and the impact on the tool in the counter-axial direction via an impact force storage means.
- the impact force storage means is thereby through the previous impact of the Impact mechanism charged to the tool in the axial direction with energy which, after the previous impact of the impact mechanism on the tool in the axial direction, can be released again from the impact force storage means to the tool in the counter-axial direction.
- the rebound effect of the impact force storage means is used as an elastic body or as a rigid impact body in order to achieve the desired reversal of the direction of force of the actual impact movement of the striking mechanism. In this way, both an axial and a counter-axial movement of the tool can be exerted by the axial striking movement of the striking mechanism of the hammer device according to the invention.
- the striking mechanism can be continuously in contact with the striking force storage means, ie for the entire duration or strength of the striking movement in the axial direction, or at least partially spaced from this along the longitudinal axis, so that only part of the duration or strength of the striking movement in axial direction can act on the impact force storage means. If there is continuous contact between the striking mechanism and the impact force storage means, the greatest possible impact force can be transmitted from the striking mechanism to the impact force storage means and thus the greatest possible impact force storage or rebound effect and output in the opposite direction.
- the hammer mechanism can preferably be operated by means of compressed air, by means of pressurized fluid, by means of a fuel-operated drive and / or electro-mechanically.
- drive means can be used.
- an impact function on the tool can be brought about in the axial direction by means of a movable piston or impact mechanism and in the counter-axial direction by at least one impact force storage means charged during the previous impact or the rebound effect of a rigid impact body.
- a gasoline engine for example, can be used as a fuel-powered drive.
- the impacts in the axial direction can preferably have a higher energy than those in the counter-axial direction. This can be achieved through a lossy impact energy storage or directional change of the impact energy through the Striking force storage means are effected. These impact functions of different strengths can be advantageous due to a tool effect, but also due to the durability of the tool.
- the impact force storage means is designed to be elastically restoring, preferably incompressibly elastically restoring.
- an elastically restoring impact force storage means can release its energy back to the tool quickly and with little loss, counter to the previous impact direction.
- the efficiency can be increased by using an incompressible impact force storage means.
- the impact force storage means has an elastomer body, preferably the impact force storage means consists of an elastomer body, or the impact force storage means has a metallic spring, preferably a metallic helical spring, preferably consists of this.
- Elastomer bodies can be easily produced and adjusted to the desired Shore hardness by choosing the material in order to provide the desired storage of impact force for the respective application.
- Metallic springs can also be adjusted to the desired spring constant through their geometry etc.
- helical compression springs can be used for a deflection in the direction of a longitudinal axis.
- At least one elastomer body with at least one metallic spring can also be used together as an impact force storage means.
- the impact force storage means is designed to at least partially store the impact force of the impact mechanism in the axial direction via a radial projection of the tool and to output it again at least partially as an impact force in the counter-axial direction.
- a preferably form-fitting and / or force-fitting coupling between the tool and the impact force storage means can be achieved via a radial projection of the tool and in particular of the shaft of the tool.
- at least part of the impact energy can be transmitted from the tool in the axial direction to the impact force store, for example by compressing the impact force storage means or by rebounding in the axial direction, for example against a holding means of the tool.
- the impact force storage means in Press against the projection in the counter-axial direction and thus transfer its stored impact energy in this counter-axial direction to the tool via the projection.
- the impact force storage means is designed to be arranged on the rest of the hammer device by means of a releasable holding means.
- This releasable holding means can be, for example, a closure cap or an end piece of the hammer device, which can be screwed to the housing of the hammer device, for example.
- the impact force storage means can easily be exchanged, e.g. to replace it if it is damaged or worn.
- the impact force storage means can also be easily exchanged, so that a change in the rebound behavior of the impact force storage means can be achieved.
- this effect or the impact force exerted on the tool can be adapted in the opposite direction to the respective application, e.g. by choosing different types of impact force storage means or by choosing different impact force storage means with different spring constants.
- the releasable holding means can be exchanged with or without the tool.
- the impact force storage means can be arranged at a distance from the impact mechanism in the longitudinal direction, so that the strength of the impact force of the impact mechanism on the impact force storage means in the axial direction can thereby be influenced.
- the remaining impact force can only be transmitted to the impact force storage means after an already partially executed impact of the impact mechanism in the axial direction on the tool, because there was no force-transmitting contact between Impact mechanism and impact force storage means has passed.
- the measure of the impact force in the axial direction can be specified, which is to be stored by the impact force storage means in order to exert an impact force in the counter-axial direction.
- a correspondingly greater impact force can be made available in the axial direction.
- the distance in the longitudinal direction can be set by the operator, preferably steplessly, so that the impact force can be divided into the axial and counter-axial direction and adjusted according to the application.
- the impact force storage means can be arranged at a distance from the impact mechanism in the longitudinal direction in such a way that an impact force of the impact mechanism on the impact force storage means in the axial direction can thereby be avoided.
- the hammer device according to the invention can also be used in a conventional manner, in that the distance between the hammer mechanism and the impact force storage means can be set so large in the longitudinal direction that the impact force cannot be transmitted to the impact force storage means. In this way, an impact in the counter-axial direction can be completely avoided.
- the entire impact force of the striking mechanism can be used for one impact in the axial direction.
- the counter-axial impact possibility according to the invention can be provided as an option of a hammer device according to the invention, which can both act conventionally in the axial direction and, if necessary, by reducing the above-mentioned distance from the operator to exert an impact in the counter-axial direction.
- the impact force storage means can be arranged at a distance from the impact mechanism in the longitudinal direction by means of an adjustable holding means. This can preferably take place by rotating the holding means, in particular by a screwing movement, about the longitudinal axis into locked or lockable positions of the holding means, which can preferably be carried out in locked quick adjustment positions or steplessly.
- a simple setting option in particular continuously or by means of quick adjustment, can be provided for metering the strength of the impact force in the counter-axial direction and for avoiding an impact force in the counter-axial direction.
- This setting option can also be used simply and quickly and intuitively by the operator.
- the distance in the longitudinal direction can preferably be changed, for example, between two or more discrete positions in which the holding means can preferably be locked. For example, between a first position in which there is no contact between the striking mechanism and the striking force storage means and therefore no striking force at all can be exerted in the counter-axial direction, and a second position in which the striking mechanism and the striking force storage means come into contact and thus an impact force can also be exerted in the counter-axial direction, in order to be able to switch the function of counter-axial impact force generation on and off via the distance in the longitudinal direction. If further positions are made possible in addition to the second position, different measures of the impact force can be set in a counter-axial direction.
- the hammer device according to the invention also comprises a tool, the tool having a tool end facing away from the hammer device in the axial direction, which is designed to transmit the impact force of the striking mechanism at least partially in the counter-axial direction to a body to be machined.
- a tool can be used to strike a body such as a clamping body in the slots of a grille of a ball mill from behind by means of the impact force of the hammer device according to the invention, which can be exerted in the opposite direction, in order to be able to remove it from the grille in the opposite direction to its entry direction.
- the present invention can be used in an economical and user-friendly manner for a wide variety of applications, in which an axial impact force is to be generated from an axial impact force, such as when loosening any component components from another component, it is described here with reference to the uncovering of slots in Diaphragm walls of ball mills in the cement industry explained in more detail by way of example.
- adapted tools can be used, which from the shaft end limit between 21 and 25 by means of an L- or T-shaped geometric design of the tool end or by means of suitable coupling with the clamping body to be released, the counter-axial impact effect achieved on the Can transfer sprags.
- Fig. 1 shows a schematic sectional illustration of a hammer device 1 according to the invention with a tool 2 according to the invention in a first position.
- Fig. 2 shows a schematic sectional view of the hammer device 1 according to the invention with the tool 2 according to the invention Fig. 1 in a second position.
- Fig. 3 shows a perspective schematic representation of a tool 2 according to the invention The hammer device 1 and the tool 2 extend essentially in a common longitudinal axis X, to which the radial direction R is arranged perpendicularly.
- the hammer device 1 can be guided by hand by an operator and for this purpose has a handle 11 which is part of a housing 14.
- a hammer mechanism 12 is arranged inside the housing 14, which hammer mechanism can execute blows in an axial direction A along the longitudinal axis X.
- the striking mechanism 12 can be operated pneumatically with compressed air, for example.
- the housing 14 has a front housing 141 extending away from the hammer mechanism 12 along the longitudinal axis X.
- a releasable holding means 13 is arranged on the housing 14 by means of the front housing 141 opposite the handle 11 in the axial direction A.
- the releasable holding means 13 has a closure part 132 in the form of a closure cap 132, which can be screwed onto the front housing 141 by a rotary movement about the longitudinal axis X or removed by unscrewing.
- the closure cap 132 has a passage opening 133, facing away from the housing 14 in the axial direction A, through which the tool 2 is guided.
- An impact force storage means 15 is arranged inside the closure cap 132, which is formed by an elastomer body 15, which in the present exemplary embodiment is made in two parts, but could also be made in one piece or have more than two parts. Instead of the elastomer body 15, a rigid one-piece or multi-part impact body 15, e.g. made of steel, could also be used.
- the elastomer body 15 rests from the inside on the inside of the closure cap 132 in the area of the passage opening 133 and extends counter to the axial direction A, i.e. in the counter-axial direction B, towards the housing 14.
- a variable distance d between the front housing 141 and the elastomer body 15 and between the housing 14 and the holding means 13 can also be set via the detachable holding means 13.
- the releasable holding means 13 can be brought closer to the housing 14 or rotated away from it by the screwing movement in the longitudinal direction X, so that the distance d can be adjusted via this.
- the tool 2 is arranged inside the holding means 13 and protrudes in the axial direction A from this through its passage opening 133 in the axial direction A.
- the tool 2 has a shank 21 which, with its shank end 21 ′, rests against the striking mechanism 12, so that the striking mechanism 12 can exert impacts in the axial direction A on the tool 2.
- the tool 2 has a radial projection 24 in the axial direction A behind the shaft end 21 ′, with which the tool 2 rests against the elastomer body 15 in the axial direction A.
- part of the impact energy exerted by the striking mechanism 12 on the tool 2 can be transferred to the elastomer body 15 and stored there.
- the stored impact energy can be transferred back from the elastomer body 15 in the opposite axial direction B via the projection 24 as soon as the impact of the striking mechanism 12 is over and no longer acts on the tool 2 and the elastomer body 15 in the axial direction A. In this way, an impact of the tool 2 in the counter-axial direction B can be exerted.
- the tool 2 has at its shaft end 21 ' at tool end 22 opposite axially direction A, a hook-like working flank 232, which is designed to transmit impacts in opposite axis direction B to the clamping body to be released, cf. Fig. 2 .
- the clamping body should be released from the rear with blows in the counter-axial direction B.
- the hook-like working flank 232 is accordingly designed to protrude radially in order to enable this grip from behind.
- the hook-like working flank 232 is rounded or conical in order to avoid the formation of cracks or to enable the most uniform possible transmission of forces between the hook-like working flank 232 and the shaft 21.
- the tool end 22 also has an indented working flank 231, which serves to transmit the impacts of the striking mechanism 12 in the axial direction A to the clamping body to be released, in order to drive it further through the slot in the grid.
- this working flank 231 is indented.
- the tool end 22 is designed to be flat overall in one direction, so that a flat area 23 is formed here in which the two working flanks 231, 232 are formed. In this way, the tool end 22 can be guided through between the grid bars or act in slots between the grid bars.
- the tool end 22 merges into the shaft 21 by means of a transition region 25.
- the operator can use the distance d to set how much the impact force of the impact mechanism 12 acts on the elastomer body 15 in the axial direction A and is to be converted accordingly into an impact force in the counter-axial direction B. If the distance d becomes minimal or to zero, the impact energy is absorbed by the elastomer body 15 from the start of the impact movement, so that a correspondingly large impact energy can be emitted again in the counter-axial direction B. This reduces the impact energy effective in the axial direction A accordingly.
- the distance d is selected to be so large that no contact at all with the elastomer body 15 can occur during the striking movement of the striking mechanism 12, then there is also no striking movement in the counter-axial direction B at all. In this way, the maximum impact energy can be used in the axial direction A and the hammer device 1 according to the invention can be used in the usual way.
- clamping bodies can be released quickly and easily, for example from slots in a grid of a ball mill, by using a hammer device 1 instead of manual cleaning.
- blows can be executed not only in the axial direction A in order to drive a clamping body further through a slot, but also in the counter-axial direction B in order to release a clamping body out of the slot against its entry direction. It is precisely this function that is previously unknown and can significantly improve the cleaning of such bars.
Description
Die vorliegende Erfindung betrifft eine Hammereinrichtung gemäß dem Oberbegriff des Anspruchs 1 und wie aus
In verschiedenen Bereichen der Technik kann es erforderlich sein, miteinander verbundene Körper wieder zu trennen. Dies kann verbundene Körper betreffen, die gewollt miteinander verbunden wurden, aber auch verbundene Körper, deren Verbindung ungewollt eingegangen wurde. Letzteres kann z.B. der Fall sein, falls ein zweiter Körper durch einen Prozess mit einem ersten Körper in Verbindung gebracht wird, so dass eine ungewollte Verbindung zwischen diesen beiden Körpern hergestellt wird. Diese Verbindung kann formschlüssig, kraftschlüssig und bzw. oder stoffschlüssig sein.In different areas of technology it may be necessary to separate bodies that are connected to one another. This can affect connected bodies that were intentionally connected to each other, but also connected bodies whose connection was unintentionally entered into. The latter can be the case, for example, if a second body is brought into connection with a first body through a process, so that an undesired connection is established between these two bodies. This connection can be form-fitting, non-positive and / or cohesive.
Beispielsweise werden in der Zementindustrie sog. Kugelmühlen eingesetzt, welche allgemein der Grob-, Fein- und Feinstzerkleinerung oder Homogenisierung von Mahlgut dienen. Eine Kugelmühle besteht aus einem in Rotation versetzbaren Mahlraum, in dem Mahlgut durch Mahlkörper z.B. in Kugelform zerkleinert werden kann. Der Mahlraum kann durch eine oder mehrere Zwischenwände, welche üblicherweise als Gitter ausgeführt sind, in einzelne Kammern getrennt sein. Die erste Kammer kann dann mit den größten Kugeln und die weiteren Kammern mit immer kleineren Kugeln gefüllt sein. Bei Zementmühlen geschieht diese Trennung durch eine Gattierpanzerung kontinuierlich, d.h. durch eine Trennung der Kugeln durch Impuls an abgeschrägten Gittern. Die Mühle kann durch eine zentrale Öffnung in einer der Stirnwände mit dem zu zerkleinernden Material befüllt werden. Der Austrag ist von der Bauform abhängig. Bei Trockenmühlen wird das Mahlgut durch Schlitze in der Rohrwand am Mühlenende ausgetragen. Die Mahlkörper werden so zurückgehalten.For example, so-called ball mills are used in the cement industry, which are generally used for the coarse, fine and ultra-fine comminution or homogenization of ground material. A ball mill consists of a grinding chamber that can be set in rotation, in which the material to be ground can be comminuted by grinding media, for example in spherical form. The grinding chamber can be separated into individual chambers by one or more partition walls, which are usually designed as grids. The first chamber can then be filled with the largest balls and the other chambers with smaller and smaller balls. In cement mills, this separation is carried out continuously by means of Gattier armoring, ie by separating the balls by means of impulses on bevelled grids. The mill can be powered by a central opening in one of the end walls can be filled with the material to be shredded. The discharge depends on the design. In the case of dry mills, the ground material is discharged through slots in the pipe wall at the end of the mill. The grinding media are retained in this way.
Bei derartigen Kugelmühlen z.B. in der Zementindustrie kann es vorkommen, dass an den Gittern der Zwischenwände der einzelnen Kammern, welche auch als Schlitzwände bezeichnet werden können, sich im Laufe des Betriebs der Kugelmühle Fremdmaterialien wie z.B. Kugelreste der üblicherweise metallischen Mahlkörper, kleine im Produktionsbetrieb ungewollt mitbeförderte Metallkörper sowie Zementaushärtungen festsetzen können, welche allesamt auch als Klemmkörper bezeichnet werden können. Hierdurch können sich die Schlitze der Gitter der Zwischenwände auf die Dauer durch die Klemmkörper zusetzen.With such ball mills, e.g. in the cement industry, it can happen that foreign materials such as ball remnants of the usually metallic grinding media, small ones in the production process, are unintentionally transported to the grids of the partition walls of the individual chambers, which can also be referred to as slotted walls Metal body and cement hardening can set, all of which can also be referred to as clamping bodies. As a result, the slots in the grids of the partition walls can become clogged over time by the clamping bodies.
Die zugesetzten Schlitze können die Durchsatzleistung und damit die Wirtschaftlichkeit der Kugelmühle verringern, weshalb die Schlitzwände regelmäßig von den festsitzenden Klemmkörpern zu reinigen sind. Dies geschieht bisher üblicherweise durch manuelle Verfahren durch manuelle Schlagwerkzeuge oder durch manuelle Hebelwerkzeuge, mittels derer die Klemmkörper von einer Person weiter (in achsialer Richtung) durch den Schlitz hindurchgetrieben oder wieder entgegen der Eintrittsrichtung des Klemmkörpers (in gegenachsialer Richtung) aus dem Schlitz herausgetrieben oder manuell zur Schlitzeintrittsseite herausgehebelt werden. Dies kann sehr arbeits- und zeitaufwendig sowie anstrengend sein und auch nicht immer zur gewünschten Reinigung der Schlitze führen.The added slots can reduce the throughput and thus the profitability of the ball mill, which is why the slot walls have to be cleaned regularly to remove the stuck clamping bodies. Up to now, this has usually been done by manual methods using manual striking tools or manual lever tools, by means of which the clamping bodies are driven further through the slot by a person (in the axial direction) or driven out of the slot again against the entry direction of the clamping body (in the opposite direction to the axis) or manually be levered out to the slot entry side. This can be very labor-intensive and time-consuming as well as strenuous and also does not always lead to the desired cleaning of the slots.
Die
Mit diesem Werkzeug der
Nachteilig ist hierbei, dass durch das Werkzeug der
Nachteilig ist ferner, dass über das Werkzeug der
Eine Aufgabe der vorliegenden Erfindung ist es, eine Hammereinrichtung der eingangs beschriebenen Art bereit zu stellen, so dass Kräfte sowohl in achsialer Richtung als auch in gegenachsialer Richtung ausgeübt werden können. Insbesondere sollen Kräfte in gegenachsialer Richtung auf einen Körper ausgeübt werden können, ohne dass eine Ankopplung an dem Körper vorgenommen werden muss.One object of the present invention is to provide a hammer device of the type described at the outset, so that forces can be exerted both in the axial direction and in the counter-axial direction. In particular, it should be possible to exert forces on a body in a counter-axial direction without having to be coupled to the body.
Die Aufgabe wird erfindungsgemäß durch die Merkmale des Anspruchs 1 gelöst. Vorteilhafte Weiterbildungen sind in den Unteransprüchen beschrieben.The object is achieved according to the invention by the features of claim 1. Advantageous further developments are described in the subclaims.
Somit betrifft die vorliegende Erfindung eine Hammereinrichtung wie z.B. einen Drucklufthammer. Vorzugsweise kann diese Hammereinrichtung handgeführt sein, d.h. von einer Person als Bediener in einer Hand bzw. mit beiden Händen gehalten und geführt werden. Die Hammereinrichtung kann jedoch auch durch eine Vorrichtung wie z.B. durch eine Maschine geführt werden. Die Hammereinrichtung weist ein Schlagwerk auf, welches ausgebildet ist, in achsialer Richtung auf ein Werkzeug schlagend wirken zu können. Das Werkzeug kann mittels eines Haltemittels durch die Hammereinrichtung aufgenommen sein. Die achsiale Richtung bezeichnet eine der beiden Richtungen der Längsachse der Hammereinrichtung.Thus, the present invention relates to a hammer device such as an air hammer. This hammer device can preferably be hand-operated, i.e. held and guided by one person as the operator in one hand or with both hands. However, the hammer device can also be guided by a device such as a machine. The hammer device has an impact mechanism which is designed to be able to impact a tool in the axial direction. The tool can be received by the hammer device by means of a holding means. The axial direction denotes one of the two directions of the longitudinal axis of the hammer device.
Diese Hammereinrichtung ist erfindungsgemäß gekennzeichnet durch wenigstens ein Schlagkraftspeichermittel, welches ausgebildet ist, eine Schlagkraft des Schlagwerks in achsialer Richtung zumindest teilweise speichernd aufzunehmen und zumindest teilweise als eine Schlagkraft in gegenachsialer Richtung wieder abzugeben. Dabei bezeichnet die gegenachsialer Richtung die Richtung der Längsachse der Hammereinrichtung, die der achsialen Richtung entgegengesetzt orientiert ist. Unter einem Schlagkraftspeichermittel wird jedes Mittel verstanden, welches in der Lage ist, kinetische Energie in achsialer Richtung zu empfangen und zumindest teilweise, vorzugsweise möglichst vollständig, wieder in gegenachsialer Richtung abzugeben. Das Schlagkraftspeichermittel kann ein elastisches Mittel aber auch ein starres Mittel wie z.B. ein Prallkörper, insbesondere aus Metall, sein, welche die kinetische Energie des Schlagwerks mittels Prallwirkung aus der achsialen Richtung in die gegenachsiale Richtung lenken kann.According to the invention, this hammer device is characterized by at least one impact force storage means which is designed to at least partially store an impact force of the impact mechanism in the axial direction and at least partially release it again as an impact force in the counter-axial direction. The opposite axis direction denotes the direction of the longitudinal axis of the hammer device, which is oriented opposite to the axial direction. An impact force storage means is understood to mean any means which is able to receive kinetic energy in the axial direction and at least partially, preferably as completely as possible, to release it again in the counter-axial direction. The impact force storage means can be an elastic means but also a rigid means such as an impact body, in particular made of metal, which can direct the kinetic energy of the impact mechanism from the axial direction into the counter-axial direction by means of an impact effect.
Die der vorliegenden Erfindung zugrunde liegende Idee besteht darin, dass die erfindungsgemäße Hammereinrichtung mit einer Schlagfunktion versehen ist, die entlang der Längsachse der Hammereinrichtung in beide Richtungen, d.h. sowohl in achsialer Richtung als auch in gegenachsialer Richtung, wirken kann. Auf diese Weise kann nicht nur ein Schlagen vom Bediener als die Hammereinrichtung handhabende Person weg sondern auch ein Schlagen zum Bediener hin ermöglicht werden. Hierdurch können z.B. Klemmkörper in Gittern einer Kugelmühle sowohl mittels der erfindungsgemäßen Hammereinrichtung weiter in achsialer Richtung durch den Schlitz hindurchgetrieben als auch wieder entgegen der Eintrittsrichtung des Klemmkörpers in gegenachsialer Richtung aus dem Schlitz herausgetrieben werden. Dies kann die Reinigung derartiger Gitter von Klemmkörpern vereinfachen, verbessern, beschleunigen oder sogar erst ermöglichen. Ferner kann der Reinigungsaufwand durch die Unterstützung einer derartigen Hammereinrichtung verringert werden.The idea on which the present invention is based is that the hammer device according to the invention is provided with an impact function which can act along the longitudinal axis of the hammer device in both directions, ie both in the axial direction and in the counter-axial direction. In this way, it is not only possible to strike away from the operator as the person handling the hammer device, but also to strike towards the operator. In this way, for example, clamping bodies in the grids of a ball mill can both be driven further through the slot in the axial direction by means of the hammer device according to the invention and again in a counter-axial direction counter to the entry direction of the clamping body driven out of the slot. This can simplify, improve, accelerate or even enable the cleaning of such grids from clamping bodies. Furthermore, the cleaning effort can be reduced by the support of such a hammer device.
Mit anderen Worten können je nach Situation die sich in den Durchbrüchen bzw. Schlitzen der Gitter einer Kugelmühle befindlichen Klemmkörper entweder zugschlagend bzw. zurückschlagend in Richtung der Schlitzeintrittsseite oder durchschlagend in Richtung Schlitzaustrittsseite schneller und weniger verschleißintensiv aus dem Durchbruch bzw. Schlitz gelöst und anschließend entfernt werden als bisher bekannt. Dabei kann das Werkzeug vorzugsweise mit hoher Energie in der achsialen Richtung beaufschlagt werden, so dass beispielsweise mit Klemmkörpern zugesetzte Schlitze durchschlagend in Richtung Schlitzaustrittsseite in der Schlitzwand einer Kugelmühle gereinigt werden können.In other words, depending on the situation, the clamping bodies located in the openings or slots of the grids of a ball mill can be released from the opening or slot faster and with less wear and tear and then removed, either with a pulling action or recoiling in the direction of the slot entry side or with a penetration towards the slot exit side than previously known. The tool can preferably be subjected to high energy in the axial direction so that, for example, slots clogged with clamping bodies can be cleaned in the slot wall of a ball mill in the direction of the slot exit side.
Bei Schlitzverstopfungen, bei denen das im Schlitz geklemmte Fremd- oder Hartmaterial auf Grund seiner geometrischen Form nur teilweise (nicht ganzteilig) schlitzeintrittsseitig geklemmt ist, kann mit Erfolg häufig durch eine schräg zur Längsachse ausgerichtete Schlagbeaufschlagung bei Gegenschlag des Werkzeugs ein Lösen des Klemmkörpers in Richtung Schlitzeintrittsseite bewirkt werden. Dieses Vorgehen kann durch eine entsprechende geometrische Form des Werkzeuges begünstigt werden.In the case of slot blockages, in which the foreign or hard material clamped in the slot is only partially (not entirely) clamped on the slot entry side due to its geometric shape, an impact at an angle to the longitudinal axis can often result in a loosening of the clamping body in the direction of the slot entry side when the tool is hit at an angle to the longitudinal axis be effected. This procedure can be favored by a corresponding geometric shape of the tool.
Auch kann die erfindungsgemäße Hammereinrichtung zum Lösen von Bolzen, Nägeln, festgefahrenen Meißeln, Bohrgestänge etc. benutzt werden, sofern ein Hintergreifen mit einem geeigneten starren oder flexiblen Werkzeug möglich ist oder eine feste Ankoppelung an den Klemmkörper mit einem nur auf Zug belastbarem Zwischenbauteil (z.B. Seil) ermöglicht werden kann.The hammer device according to the invention can also be used to loosen bolts, nails, stuck chisels, drill rods, etc., provided that a suitable rigid or flexible tool can be used from behind or a fixed coupling to the clamping body with an intermediate component that can only be subjected to tensile loads (e.g. rope ) can be made possible.
Diese Möglichkeit der Schlagausführung in beide Richtungen der Längsachse der Hammereinrichtung wird erfindungsgemäß dadurch erreicht, dass der Schlag auf das Werkzeug in achsialer Richtung über das Schlagwerk der Hammereinrichtung und der Schlag auf das Werkzeug in gegenachsialer Richtung über ein Schlagkraftspeichermittel erfolgen. Das Schlagkraftspeichermittel wird dabei durch den vorangegangenen Schlag des Schlagwerks auf das Werkzeug in achsialer Richtung mit Energie aufgeladen, welche nach Beendigung des vorangegangenen Schlags des Schlagwerks auf das Werkzeug in achsialer Richtung wieder von dem Schlagkraftspeichermittel auf das Werkzeug in gegenachsialer Richtung abgegeben werden kann. Mit anderen Worten wird der Rückpralleffekt des Schlagkraftspeichermittels als elastischer Körper oder als starrer Prallkörper genutzt, um die gewünschte Richtungsumkehr der Kraftrichtung der eigentlichen Schlagbewegung des Schlagwerks zu erreichen. Auf diese Weise kann sowohl eine achsiale als auch eine gegenachsiale Bewegung des Werkzeugs durch die achsiale Schlagbewegung des Schlagwerks der erfindungsgemäßen Hammereinrichtung ausgeübt werden.This possibility of impact execution in both directions of the longitudinal axis of the hammer device is achieved according to the invention in that the impact on the tool in the axial direction via the hammer mechanism of the hammer device and the impact on the tool in the counter-axial direction via an impact force storage means. The impact force storage means is thereby through the previous impact of the Impact mechanism charged to the tool in the axial direction with energy which, after the previous impact of the impact mechanism on the tool in the axial direction, can be released again from the impact force storage means to the tool in the counter-axial direction. In other words, the rebound effect of the impact force storage means is used as an elastic body or as a rigid impact body in order to achieve the desired reversal of the direction of force of the actual impact movement of the striking mechanism. In this way, both an axial and a counter-axial movement of the tool can be exerted by the axial striking movement of the striking mechanism of the hammer device according to the invention.
Das Schlagwerk kann hierzu durchgängig mit dem Schlagkraftspeichermittel in Kontakt stehen, d.h. für die gesamte Dauer bzw. Stärke der Schlagbewegung in achsialer Richtung, oder von diesem entlang der Längsachse zumindest teilweise beabstandet sein, so dass lediglich ein Teil der Dauer bzw. Stärke der Schlagbewegung in achsialer Richtung auf das Schlagkraftspeichermittel wirken kann. Besteht ein durchgängiger Kontakt zwischen Schlagwerk und Schlagkraftspeichermittel, so kann eine größtmögliche Schlagkraftübertragung vom Schlagwerk auf das Schlagkraftspeichermittel und damit eine größtmögliche Schlagkraftspeicherung bzw. Rückprallwirkung sowie Abgabe in gegenachsialer Richtung erfolgen.For this purpose, the striking mechanism can be continuously in contact with the striking force storage means, ie for the entire duration or strength of the striking movement in the axial direction, or at least partially spaced from this along the longitudinal axis, so that only part of the duration or strength of the striking movement in axial direction can act on the impact force storage means. If there is continuous contact between the striking mechanism and the impact force storage means, the greatest possible impact force can be transmitted from the striking mechanism to the impact force storage means and thus the greatest possible impact force storage or rebound effect and output in the opposite direction.
Vorzugsweise ist das Schlagwerk mittels Druckluft, mittels Druckfluid, mittels eines kraftstoffbetriebenen Antriebs und bzw. oder elektro-mechanisch betreibbar. Hierdurch können verschiedene Varianten von Antriebsmitteln genutzt werden. Bei mit Druckluft oder mit Druckfluid betriebenen Schlagwerken kann eine Schlagfunktion auf das Werkzeug in achsialer Richtung mittels eines bewegbaren Kolbens oder Schlagwerks und in der gegenachsialen Richtung durch mindestens ein beim vorangegangenen Schlag aufgeladenes Schlagkraftspeichermittel bzw. die Rückprallwirkung eines starren Prallkörpers bewirkbar sein. Als kraftstoffbetriebener Antrieb kann z.B. ein Benzinmotor zum Einsatz kommen.The hammer mechanism can preferably be operated by means of compressed air, by means of pressurized fluid, by means of a fuel-operated drive and / or electro-mechanically. As a result, different variants of drive means can be used. In impact mechanisms operated with compressed air or pressure fluid, an impact function on the tool can be brought about in the axial direction by means of a movable piston or impact mechanism and in the counter-axial direction by at least one impact force storage means charged during the previous impact or the rebound effect of a rigid impact body. A gasoline engine, for example, can be used as a fuel-powered drive.
Vorzugsweise können die Schläge in der achsialen Richtung eine höhere Energie aufweisen als diejenigen in gegenachsialer Richtung. Dies kann durch eine verlustbehaftete Schlagenergiespeicherung bzw. Richtungswandlung der Schlagenergie durch das Schlagkraftspeichermittel bewirkt werden. Diese unterschiedlich starken Schlagfunktionen können auf Grund einer Werkzeugwirkung, aber auch auf Grund einer Haltbarkeit des Werkzeuges vorteilhaft sein.The impacts in the axial direction can preferably have a higher energy than those in the counter-axial direction. This can be achieved through a lossy impact energy storage or directional change of the impact energy through the Striking force storage means are effected. These impact functions of different strengths can be advantageous due to a tool effect, but also due to the durability of the tool.
Erfindungsgemäß ist das Schlagkraftspeichermittel elastisch rückstellend, vorzugsweise inkompressibel elastisch rückstellend, ausgebildet. Auf diese Weise kann eine Speicherung und Abgabe der aufgenommenen Schlagenergie in entgegengesetzter Richtung umgesetzt werden. Insbesondere kann ein elastisch rückstellendes Schlagkraftspeichermittel seine Energie schnell und verlustarm entgegen der vorangegangenen Schlagrichtung zurück an das Werkzeug wieder abgeben. Dabei kann der Wirkungsgrad erhöht werden, indem ein inkompressibles Schlagkraftspeichermittel verwendet wird.According to the invention, the impact force storage means is designed to be elastically restoring, preferably incompressibly elastically restoring. In this way, the absorbed impact energy can be stored and released in the opposite direction. In particular, an elastically restoring impact force storage means can release its energy back to the tool quickly and with little loss, counter to the previous impact direction. The efficiency can be increased by using an incompressible impact force storage means.
Gemäß einem weiteren Aspekt der vorliegenden Erfindung weist das Schlagkraftspeichermittel einen Elastomerkörper auf, vorzugsweise besteht das Schlagkraftspeichermittel aus einem Elastomerkörper, oder das Schlagkraftspeichermittel weist eine metallische Feder, vorzugsweise eine metallische Schraubenfeder, auf, vorzugsweise besteht aus dieser. Mittels derartiger Mittel kann die Funktion einer Schlagkraftspeicherung und Abgabe in entgegengesetzter Richtung umgesetzt werden. Elastomerkörper können dabei einfach hergestellt und durch die Wahl des Materials auf die gewünschte Shore-Härte eingestellt werden, um die gewünschte Schlagkraftspeicherung für den jeweiligen Anwendungsfall bereitzustellen. Auch können metallische Federn durch ihre Geometrie etc. auf die gewünschte Federkonstante eingestellt werden. Insbesondere können für eine Einfederung in Richtung einer Längsachse Schraubendruckfedern verwendet werden. Es können auch jeweils mehrere Elastomerkörper bzw. metallische Federn gemeinsam eingesetzt werden. Auch kann mindestens ein Elastomerkörper mit mindestens einer metallischen Feder gemeinsam als Schlagkraftspeichermittel eingesetzt werden.According to a further aspect of the present invention, the impact force storage means has an elastomer body, preferably the impact force storage means consists of an elastomer body, or the impact force storage means has a metallic spring, preferably a metallic helical spring, preferably consists of this. By means of such means, the function of storing and releasing impact force can be implemented in the opposite direction. Elastomer bodies can be easily produced and adjusted to the desired Shore hardness by choosing the material in order to provide the desired storage of impact force for the respective application. Metallic springs can also be adjusted to the desired spring constant through their geometry etc. In particular, helical compression springs can be used for a deflection in the direction of a longitudinal axis. Several elastomer bodies or metallic springs can also be used together. At least one elastomer body with at least one metallic spring can also be used together as an impact force storage means.
Gemäß einem weiteren Aspekt der vorliegenden Erfindung ist das Schlagkraftspeichermittel ausgebildet, über einen radialen Vorsprung des Werkzeugs die Schlagkraft des Schlagwerks in achsialer Richtung zumindest teilweise speichernd aufzunehmen und zumindest teilweise als eine Schlagkraft in gegenachsialer Richtung wieder abzugeben. Mit anderen Worten kann über einen radialen Vorsprung des Werkzeugs und insbesondere des Schafts des Werkzeugs eine vorzugsweise formschlüssige und bzw. oder kraftschlüssige Kopplung zwischen dem Werkzeug und dem Schlagkraftspeichermittel erreicht werden. Auf diese Weise kann eine Übertragung zumindest eines Teils der Schlagenergie vom Werkzeug in achsialer Richtung auf den Schlagkraftspeicher erfolgen, z.B. durch Zusammendrücken des Schlagkraftspeichermittels oder durch ein Rückprallen in achsialer Richtung z.B. gegen ein Haltemittel des Werkzeugs. Gleichzeitig kann das Schlagkraftspeichermittel in gegenachsialer Richtung gegen den Vorsprung drücken und somit seine gespeicherte Schlagenergie in dieser gegenachsialen Richtung über den Vorsprung auf das Werkzeug übertragen.According to a further aspect of the present invention, the impact force storage means is designed to at least partially store the impact force of the impact mechanism in the axial direction via a radial projection of the tool and to output it again at least partially as an impact force in the counter-axial direction. In other words, a preferably form-fitting and / or force-fitting coupling between the tool and the impact force storage means can be achieved via a radial projection of the tool and in particular of the shaft of the tool. In this way, at least part of the impact energy can be transmitted from the tool in the axial direction to the impact force store, for example by compressing the impact force storage means or by rebounding in the axial direction, for example against a holding means of the tool. At the same time, the impact force storage means in Press against the projection in the counter-axial direction and thus transfer its stored impact energy in this counter-axial direction to the tool via the projection.
Gemäß einem weiteren Aspekt der vorliegenden Erfindung ist das Schlagkraftspeichermittel ausgebildet, mittels eines lösbaren Haltemittels an der übrigen Hammereinrichtung angeordnet zu werden. Dieses lösbare Haltemittel kann beispielsweise eine Verschlusskappe oder ein Endstück der Hammereinrichtung sein, welches z.B. mit dem Gehäuse der Hammereinrichtung verschraubbar sein kann. Auf diese Weise kann das Schlagkraftspeichermittel einfach ausgetauscht werden, um es z.B. bei Beschädigung und Verschleiß zu ersetzen. Auch kann hierdurch das Schlagkraftspeichermittel einfach ausgetauscht werden, so dass eine Änderung des Rückprallverhaltens des Schlagkraftspeichermittels erreicht werden kann. Hierdurch kann dieser Effekt bzw. die hierdurch auf das Werkzeug ausübbare Schlagkraft in gegenachsialer Richtung der jeweiligen Anwendung angepasst werden, z.B. durch die Wahl verschiedener Arten von Schlagkraftspeichermittel bzw. durch die Wahl verschiedener Schlagkraftspeichermittel mit unterschiedlichen Federkonstanten. Das lösbare Haltemittel kann dabei samt Werkzeug oder auch ohne dieses ausgetauscht werden.According to a further aspect of the present invention, the impact force storage means is designed to be arranged on the rest of the hammer device by means of a releasable holding means. This releasable holding means can be, for example, a closure cap or an end piece of the hammer device, which can be screwed to the housing of the hammer device, for example. In this way, the impact force storage means can easily be exchanged, e.g. to replace it if it is damaged or worn. In this way, the impact force storage means can also be easily exchanged, so that a change in the rebound behavior of the impact force storage means can be achieved. In this way, this effect or the impact force exerted on the tool can be adapted in the opposite direction to the respective application, e.g. by choosing different types of impact force storage means or by choosing different impact force storage means with different spring constants. The releasable holding means can be exchanged with or without the tool.
Gemäß einem weiteren Aspekt der vorliegenden Erfindung kann das Schlagkraftspeichermittel gegenüber dem Schlagwerk in Längsrichtung beabstandet angeordnet werden, so dass die Stärke der Schlagkraft des Schlagwerks auf das Schlagkraftspeichermittel in achsialer Richtung hierdurch beeinflussbar ist. Mit anderen Worten kann durch eine Beabstandung des Schlagkraftspeichermittels in Längsrichtung gegenüber dem Schlagwerk erreicht werden, dass erst nach einem bereits teilweise ausgeführten Schlag des Schlagwerks in achsialer Richtung auf das Werkzeug eine Kraftübertragung der restlichen Schlagkraft auf das Schlagkraftspeichermittel stattfinden kann, weil zuvor kein kraftübertragender Kontakt zwischen Schlagwerk und Schlagkraftspeichermittel bestanden hat.According to a further aspect of the present invention, the impact force storage means can be arranged at a distance from the impact mechanism in the longitudinal direction, so that the strength of the impact force of the impact mechanism on the impact force storage means in the axial direction can thereby be influenced. In other words, by spacing the impact force storage means in the longitudinal direction relative to the impact mechanism, the remaining impact force can only be transmitted to the impact force storage means after an already partially executed impact of the impact mechanism in the axial direction on the tool, because there was no force-transmitting contact between Impact mechanism and impact force storage means has passed.
Auf diese Weise kann das Maß der Schlagkraft in achsialer Richtung vorgegeben werden, welches zur Ausübung einer Schlagkraft in gegenachsialer Richtung durch das Schlagkraftspeichermittel gespeichert werden soll. Gleichzeitig kann hierdurch eine entsprechend größere Schlagkraft in achsialer Richtung zur Verfügung gestellt werden. Dabei kann der Abstand in Längsrichtung, vorzugsweise stufenlos, von dem Bediener derart eingestellt werden, so dass die Schlagkraft in achsialer und gegenachsialer Richtung aufgeteilt und der Anwendung entsprechend eingestellt werden kann.In this way, the measure of the impact force in the axial direction can be specified, which is to be stored by the impact force storage means in order to exert an impact force in the counter-axial direction. At the same time a correspondingly greater impact force can be made available in the axial direction. The distance in the longitudinal direction can be set by the operator, preferably steplessly, so that the impact force can be divided into the axial and counter-axial direction and adjusted according to the application.
Gemäß einem weiteren Aspekt der vorliegenden Erfindung kann das Schlagkraftspeichermittel gegenüber dem Schlagwerk in Längsrichtung derart beabstandet angeordnet werden, so dass eine Schlagkraft des Schlagwerks auf das Schlagkraftspeichermittel in achsialer Richtung hierdurch vermieden werden kann. Auf diese Weise kann auch eine Nutzung der erfindungsgemäßen Hammereinrichtung auf herkömmliche Art und Weise ermöglicht werden, indem der Abstand zwischen Schlagwerk und Schlagkraftspeichermittel in Längsrichtung derart groß eingestellt werden kann, so dass gar keine Übertragung der Schlagkraft auf das Schlagkraftspeichermittel erfolgen kann. Hierdurch kann ein Schlag in gegenachsialer Richtung vollständig vermieden werden.According to a further aspect of the present invention, the impact force storage means can be arranged at a distance from the impact mechanism in the longitudinal direction in such a way that an impact force of the impact mechanism on the impact force storage means in the axial direction can thereby be avoided. In this way, the hammer device according to the invention can also be used in a conventional manner, in that the distance between the hammer mechanism and the impact force storage means can be set so large in the longitudinal direction that the impact force cannot be transmitted to the impact force storage means. In this way, an impact in the counter-axial direction can be completely avoided.
Gleichzeitig kann hierdurch die gesamte Schlagkraft des Schlagwerks für einen Schlag in achsialer Richtung genutzt werden. Auf diese Weise kann die erfindungsgemäße gegenachsiale Schlagmöglichkeit als Option einer erfindungsgemäßen Hammereinrichtung vorgesehen werden, welche sowohl herkömmlich in achsialer Richtung wirken als auch bei Bedarf durch eine Verringerung der o.g. Beabstandung von dem Bediener zur Schlagausübung in gegenachsialer Richtung genutzt werden kann.At the same time, the entire impact force of the striking mechanism can be used for one impact in the axial direction. In this way, the counter-axial impact possibility according to the invention can be provided as an option of a hammer device according to the invention, which can both act conventionally in the axial direction and, if necessary, by reducing the above-mentioned distance from the operator to exert an impact in the counter-axial direction.
Gemäß einem weiteren Aspekt der vorliegenden Erfindung kann das Schlagkraftspeichermittel mittels eines verstellbaren Haltemittels gegenüber dem Schlagwerk in Längsrichtung beabstandet angeordnet werden. Dies kann vorzugsweise durch eine Drehung des Haltemittels, insbesondere durch eine Schraubbewegung, um die Längsachse in arretierte oder arretierbare Positionen des Haltemittels erfolgen, welche vorzugsweise in arretierte Schnellverstellpositionen oder stufenlos durchführbar sein kann. Auf diese Weise kann eine einfache Einstellmöglichkeit, insbesondere stufenlos oder mittels Schnellverstellung, für die Dosierung der Stärke der Schlagkraft in gegenachsialer Richtung sowie für die Vermeidung einer Schlagkraft in gegenachsialer Richtung bereitgestellt werden. Auch kann diese Einstellmöglichkeit einfach und schnell sowie intuitiv von dem Bediener genutzt werden. Vorzugsweise kann der Abstand in Längsrichtung z.B. zwischen zwei oder mehreren diskreten Positionen geändert werden, in denen sich das Haltemittel vorzugsweise arretieren lassen kann. Beispielsweise kann zwischen einer ersten Stellung, in der gar kein Kontakt des Schlagwerks mit dem Schlagkraftspeichermittel zustande kommt und damit auch gar keine Schlagkraft in gegenachsialer Richtung ausgeübt werden kann, und einer zweiten Position, in der ein Kontakt des Schlagwerk und dem Schlagkraftspeichermittel zustand kommt und damit auch eine Schlagkraft in gegenachsialer Richtung ausgeübt werden kann, unterschieden werden, um die Funktion der gegenachsialen Schlagkrafterzeugung über den Abstand in Längsrichtung ein- und ausschalten zu können. Werden zusätzlich zu der zweiten Stellung weitere Stellungen ermöglicht, so können verschiedene Maße der Schlagkraft in gegenachsialer Richtung eingestellt werden.According to a further aspect of the present invention, the impact force storage means can be arranged at a distance from the impact mechanism in the longitudinal direction by means of an adjustable holding means. This can preferably take place by rotating the holding means, in particular by a screwing movement, about the longitudinal axis into locked or lockable positions of the holding means, which can preferably be carried out in locked quick adjustment positions or steplessly. In this way, a simple setting option, in particular continuously or by means of quick adjustment, can be provided for metering the strength of the impact force in the counter-axial direction and for avoiding an impact force in the counter-axial direction. This setting option can also be used simply and quickly and intuitively by the operator. The distance in the longitudinal direction can preferably be changed, for example, between two or more discrete positions in which the holding means can preferably be locked. For example, between a first position in which there is no contact between the striking mechanism and the striking force storage means and therefore no striking force at all can be exerted in the counter-axial direction, and a second position in which the striking mechanism and the striking force storage means come into contact and thus an impact force can also be exerted in the counter-axial direction, in order to be able to switch the function of counter-axial impact force generation on and off via the distance in the longitudinal direction. If further positions are made possible in addition to the second position, different measures of the impact force can be set in a counter-axial direction.
Die erfindungsgemäße Hammereinrichtung umfasst auch ein Werkzeug, wobei das Werkzeug in achsialer Richtung von der Hammereinrichtung wegzeigend ein Werkzeugende aufweist, welches ausgebildet ist, die Schlagkraft des Schlagwerks zumindest teilweise in gegenachsialer Richtung auf einen zu bearbeitenden Körper zu übertragen. Durch ein derartiges Werkzeug kann mittels der in gegenachsialen Richtung ausübbaren Schlagkraft der erfindungsgemäßen Hammereinrichtung ein Körper wie z.B. ein Klemmkörper in den Schlitzen eines Gitters eines Kugelmühle von hinten geschlagen werden, um ihn auf diese Weise entgegengesetzt seiner Eintrittsrichtung in das Gitter aus diesem entfernen zu können.The hammer device according to the invention also comprises a tool, the tool having a tool end facing away from the hammer device in the axial direction, which is designed to transmit the impact force of the striking mechanism at least partially in the counter-axial direction to a body to be machined. Such a tool can be used to strike a body such as a clamping body in the slots of a grille of a ball mill from behind by means of the impact force of the hammer device according to the invention, which can be exerted in the opposite direction, in order to be able to remove it from the grille in the opposite direction to its entry direction.
Ein Ausführungsbeispiel und weitere Vorteile der Erfindung werden nachstehend im Zusammenhang mit den folgenden Figuren erläutert. Darin zeigt:
- Fig. 1
- eine schematische Schnittdarstellung einer erfindungsgemäßen Hammereinrichtung mit einem Werkzeug in einer ersten Stellung,
- Fig. 2
- eine schematische Schnittdarstellung der erfindungsgemäßen Hammereinrichtung mit einem Werkzeug der
Fig. 1 in einer zweiten Stellung, und - Fig. 3
- eine perspektivische schematische Darstellung eines Werkzeugs.
- Fig. 1
- a schematic sectional view of a hammer device according to the invention with a tool in a first position,
- Fig. 2
- a schematic sectional view of the hammer device according to the invention with a tool of
Fig. 1 in a second position, and - Fig. 3
- a perspective schematic representation of a tool.
Obwohl die vorliegende Erfindung für verschiedenste Anwendungen in wirtschaftlicher und bedienerfreundlicher Weise anwendbar sein kann, bei denen aus einer achsialen Schlagkraft eine gegenachsiale Schlagkraft erzeugt werden soll wie z.B. beim Lösen beliebiger Bauteilkomponenten von einer weiteren Komponente, wird sie vorliegend unter Bezugnahme auf das Freilegen von Schlitzen in Schlitzwänden von Kugelmühlen der Zementindustrie exemplarisch näher erläutert. Für weitere Anwendungsfälle, die einer reinen Zugschlagwirkung bedürfen, können angepasste Werkzeuge eingesetzt werden, die ab Schaftende Grenze zwischen 21 und 25 mittels L- oder T-förmiger geometrischer Ausführung des Werkzeugendes oder mittels geeigneter Ankoppelung mit dem zu lösenden Klemmkörper die erzielte gegenachsiale Schlagwirkung auf den Klemmkörper übertragen können.Although the present invention can be used in an economical and user-friendly manner for a wide variety of applications, in which an axial impact force is to be generated from an axial impact force, such as when loosening any component components from another component, it is described here with reference to the uncovering of slots in Diaphragm walls of ball mills in the cement industry explained in more detail by way of example. For other applications that require a pure tensile impact effect, adapted tools can be used, which from the shaft end limit between 21 and 25 by means of an L- or T-shaped geometric design of the tool end or by means of suitable coupling with the clamping body to be released, the counter-axial impact effect achieved on the Can transfer sprags.
Die Hammereinrichtung 1 kann von Hand von einem Bediener geführt werden und weist hierzu einen Handgriff 11 auf, welcher Bestandteil eines Gehäuses 14 ist. Innerhalb des Gehäuses 14 ist ein Schlagwerk 12 angeordnet, welches Schläge in einer achsialen Richtung A entlang der Längsachse X ausführen kann. Das Schlagwerk 12 kann z.B. pneumatisch mit Druckluft betrieben werden. Das Gehäuse 14 weist ein sich vom Schlagwerk 12 entlang der Längsachse X weg erstreckendes Vordergehäuse 141 auf.The hammer device 1 can be guided by hand by an operator and for this purpose has a
Dem Handgriff 11 in achsialer Richtung A gegenüberliegend ist mittels des Vordergehäuses 141 ein lösbares Haltemittel 13 am Gehäuse 14 angeordnet. Das lösbare Haltemittel 13 weist ein Verschlussteil 132 in Form einer Verschlusskappe 132 auf, welche durch Drehbewegung um die Längsachse X am Vordergehäuse 141 angeschraubt bzw. durch Abschrauben entfernt werden kann. Die Verschlusskappe 132 weist dem Gehäuse 14 in achsialer Richtung A abgewandt eine Durchlassöffnung 133 auf, durch welche das Werkzeug 2 geführt wird.A releasable holding means 13 is arranged on the
Innerhalb der Verschlusskappe 132 ist ein Schlagkraftspeichermittel 15 angeordnet, welches durch einen Elastomerkörper 15 gebildet wird, welcher im vorliegenden Ausführungsbeispiel zweiteilig ausgeführt ist, jedoch auch einteilig ausgeführt sein oder mehr als zwei Teile aufweisen könnte. Anstelle des Elastomerkörpers 15 könnte auch ein starrer ein- oder mehrteiliger Prallkörper 15 z.B. aus Stahl zur Anwendung kommen. Der Elastomerkörper 15 liegt von innen an der Innenseite der Verschlusskappe 132 im Bereich der Durchlassöffnung 133 an und erstreckt sich entgegen der achsialen Richtung A, d.h. in gegenachsialer Richtung B, zum Gehäuse 14 hin.An impact force storage means 15 is arranged inside the
Über das lösbare Haltemittel 13 kann auch ein veränderbarer Abstand d zwischen dem Vordergehäuse 141 und dem Elastomerkörper 15 sowie zwischen dem Gehäuse 14 und dem Haltemittel 13 eingestellt werden. Hierbei kann das lösbare Haltemittel 13 durch die Schraubbewegung in Längsrichtung X näher an das Gehäuse 14 herangeführt bzw. von diesem weggedreht werden, so dass sich hierüber der Abstand d einstellen lässt.A variable distance d between the
Das Werkzeug 2 ist innerhalb des Haltemittels 13 angeordnet und ragt in achsialer Richtung A aus diesem durch dessen Durchlassöffnung 133 in achsialer Richtung A heraus. Das Werkzeug 2 weist einen Schaft 21 auf, welcher mit seinem Schaftende 21' gegen das Schlagwerk 12 anliegt, so dass das Schlagwerk 12 Schläge in achsialer Richtung A auf das Werkzeug 2 ausüben kann.The
Das Werkzeug 2 weist in achsialer Richtung A hinter dem Schaftende 21' einen radialen Vorsprung 24 auf, mit welchem das Werkzeug 2 in achsialer Richtung A gegen den Elastomerkörper 15 anliegt. Auf diese Weise kann ein Teil der Schlagenergie, welche von dem Schlagwerk 12 auf das Werkzeug 2 ausgeübt wird, auf den Elastomerkörper 15 übertragen und dort gespeichert werden. Gleichzeitig kann über den Vorsprung 24 eine Rückübertragung der gespeicherten Schlagenergie vom Elastomerkörper 15 in gegenachsialer Richtung B erfolgen, sobald der Schlag des Schlagwerks 12 vorbei ist und nicht mehr in achsialer Richtung A auf Werkzeugs 2 und Elastomerkörper 15 wirkt. Auf diese Weise kann ein Schlag des Werkzeugs 2 in gegenachsialer Richtung B ausgeübt werden.The
Um diesen Schlag in gegenachsialer Richtung B auf einen zu bearbeitenden und insbesondere einen in gegenachsialer Richtung B zu lösenden Körper, hier einen Klemmkörper in einem Schlitz eines Gitters einer Kugelmühle (nicht dargestellt), zu übertragen, weist das Werkzeug 2 an seinem dem Schaftende 21' an achsialer Richtung A gegenüberliegenden Werkzeugende 22 eine hakenartige Arbeitsflanke 232 auf, welche ausgebildet ist, Schläge in gegenachsialer Richtung B auf den zu lösenden Klemmkörper zu übertragen, vgl.
Das Werkzeugsende 22 weist ferner eine eingebuchtete Arbeitsflanke 231 auf, welche der Übertragung der Schläge des Schlagwerks 12 in achsialer Richtung A auf den zu lösenden Klemmkörper dient, um diesen weiter durch den Schlitz des Gitters hindurchzutreiben. Um hierbei ein seitliches Abrutschen zu vermeiden, ist diese Arbeitsflanke 231 eingebuchtet ausgebildet.The
Das Werkzeugsende 22 ist insgesamt in einer Richtung flach ausgebildet, so dass sich hier ein Flachbereich 23 bildet, in welchem die beiden Arbeitsflanken 231, 232 ausgebildet sind. Auf diese Weise kann das Werkzeugsende 22 zwischen den Gitterstäben hindurchgeführt werden bzw. in Schlitzen zwischen den Gitterstäben wirken. Das Werkzeugsende 22 geht mittels eines Übergangsbereichs 25 in den Schaft 21 über.The
Dabei kann über den Abstand d vom Bediener eingestellt werden, wie sehr die Schlagkraft des Schlagwerks 12 in achsialer Richtung A auf den Elastomerkörper 15 wirken und entsprechend in eine Schlagkraft in gegenachsialer Richtung B umgewandelt werden soll. Wird nämlich der Abstand d minimal bzw. zu Null, so wird von Beginn der Schlagbewegung an die Schlagenergie von dem Elastomerkörper 15 aufgenommen, so dass auch eine entsprechend große Schlagenergie in gegenachsialer Richtung B wieder abgegeben werden kann. Hierdurch verringert sich die in achsialer Richtung A wirksame Schlagenergie entsprechend.The operator can use the distance d to set how much the impact force of the
Wird ein wirksamer Abstand d eingestellt, so kommt es erst im Laufe der Schlagbewegung zu einem Kontakt zwischen Schlagwerk 12 und Elastomerkörper 15, so dass auch erst dann eine Energieübertragung auf den Elastomerkörper 15 eintreten kann. Entsprechend wird mehr Schlagenergie in achsialer Richtung A wirksam und weniger Schlagenergie im Elastomerkörper 15 für die Schlagausübung in gegenachsialer Richtung B gespeichert bzw. genutzt.If an effective distance d is set, there is only contact between the
Wird der Abstand d sogar derart groß gewählt, dass bei der Schlagbewegung des Schlagwerks 12 gar kein Kontakt mehr zum Elastomerkörper 15 auftreten kann, so findet auch gar keine Schlagbewegung in gegenachsialer Richtung B statt. Auf diese Weise kann die maximale Schlagenergie in achsialer Richtung A genutzt werden und die erfindungsgemäße Hammereinrichtung 1 kann auf übliche Art und Weise verwendet werden.If the distance d is selected to be so large that no contact at all with the
Auf diese Weise kann mittels der erfindungsgemäßen Hammereinrichtung ein einfaches und schnelles Lösen von Klemmkörpers z.B. aus Schlitzen eines Gitters einer Kugelmühle erfolgen, indem statt einer manuellen Reinigung eine Hammereinrichtung 1 genutzt werden kann. Insbesondere können Schläge nicht nur in achsialer Richtung A, um einen Klemmkörper weiter durch einen Schlitz hindurchzutreiben, sondern auch in gegenachsialer Richtung B ausgeführt werden, um einen Klemmkörper entgegen seiner Eintrittsrichtung wieder aus dem Schlitze heraus zu lösen. Gerade diese Funktion ist bisher unbekannt und kann die Reinigung derartiger Gitterstäbe deutlich verbessern.In this way, by means of the hammer device according to the invention, clamping bodies can be released quickly and easily, for example from slots in a grid of a ball mill, by using a hammer device 1 instead of manual cleaning. In particular, blows can be executed not only in the axial direction A in order to drive a clamping body further through a slot, but also in the counter-axial direction B in order to release a clamping body out of the slot against its entry direction. It is precisely this function that is previously unknown and can significantly improve the cleaning of such bars.
- AA.
- achsiale Richtung der Längsachse Xaxial direction of the longitudinal axis X
- BB.
- gegenachsiale Richtung der Längsachse Xopposite direction of the longitudinal axis X
- dd
-
veränderbarer Abstand zwischen Vordergehäuse 141 und Schlagkraftspeichermittel 15 sowie zwischen Gehäuse 14 und Haltemittel 13variable distance between
front housing 141 and impact force storage means 15 and betweenhousing 14 and holding means 13 - RR.
- radiale Richtung senkrecht zur Längsachse Xradial direction perpendicular to the longitudinal axis X
- XX
- LängsachseLongitudinal axis
- 11
- (handgeführte) Hammereinrichtung(hand-held) hammer device
- 1111
- HandgriffHandle
- 1212th
- SchlagwerkPercussion
- 1313th
- Haltemittel für WerkzeugHolding means for tools
- 132132
- Verschlussteil, VerschlusskappeClosure part, closure cap
- 133133
-
Durchlassöffnung für Werkzeug 2Passage opening for
tool 2 - 1414th
- Gehäusecasing
- 141141
- VordergehäuseFront housing
- 1515th
- Schlagkraftspeichermittel, Elastomerkörper, Feder, starrer Prallkörper, MetallkörperImpact energy storage means, elastomer bodies, springs, rigid impact bodies, metal bodies
- 22
- Werkzeugtool
- 2121
- Schaftshaft
- 21'21 '
- SchaftendeShaft end
- 2222nd
- WerkzeugendeEnd of tool
- 2323
- FlachbereichFlat area
- 231231
- (eingebuchtete) Arbeitsflanke für Schläge in achsialer Richtung A(indented) working flank for impacts in axial direction A.
- 232232
- (hakenartige) Arbeitsflanke für Schläge in gegenachsialer Richtung B(hook-like) working flank for impacts in the counter-axial direction B
- 2424
-
radialer Vorsprung des Schafts 21radial projection of the
shaft 21 - 2525th
-
Übergangsbereich zwischen Werkzeugende 22 und Schaft 21Transition area between
tool end 22 andshank 21
Claims (8)
- Hammer device (1), in particular a hand-held hammer device (1), comprising a tool (2) and comprisingan impact mechanism (12) which is designed to be able have an impacting effect on the tool (2) in the axial direction (A),characterized byat least one impact force storage means (15) which is designed to at least partially store an impact force of the impact mechanism (12) in the axial direction (A) and to at least partially release it again as an impact force in the counter-axial direction (B),the impact force storage means (15) being designed to be elastically restoring, and the tool (2) having a tool end (22) which points away from the hammer device (1) in the axial direction (A) and is designed to transfer the impact force of the impact mechanism (12) at least partially in the counter-axial direction (B) to a body to be machined.
- Hammer device (1) according to claim 1,
wherein the impact force storage means (15) is designed to be incompressibly elastically restoring. - Hammer device (1) according to either claim 1 or claim 2,wherein the impact force storage means (15) has an elastomer body (15), and preferably consists of an elastomer body (15), orwherein the impact force storage means (15) has a metal spring (15), preferably a metal helical spring (15), and preferably consists thereof.
- Hammer device (1) according to any of the preceding claims,
wherein the impact force storage means (15) is designed, via a radial projection (24) of the tool (2), to at least partially store the impact force of the impact mechanism (12) in the axial direction (A) and to at least partially release it again as an impact force in the counter-axial direction (B). - Hammer device (1) according to any of the preceding claims,
wherein the impact force storage means (15) is designed to be arranged on the rest of the hammer device (1) by means of a releasable holding means (13). - Hammer device (1) according to any of the preceding claims,
wherein the impact force storage means (15) can be arranged at a distance from the impact mechanism (12) in the longitudinal direction (X) so that the strength of the impact force of the impact mechanism (12) on the impact force storage means (15) in the axial direction (A) can be influenced thereby. - Hammer device (1) according to any of the preceding claims,
wherein the impact force storage means (15) can be arranged at a distance from the impact mechanism (12) in the longitudinal direction (X) so that an impact force of the impact mechanism (12) on the impact force storage means (15) in the axial direction (A) can thereby be avoided. - Hammer device (1) according to any of claims 6 and 7,
wherein the impact force storage means (15) can be arranged at a distance from the impact mechanism (12) in the longitudinal direction (X) by means of an adjustable holding means (13).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016101675.6A DE102016101675B4 (en) | 2016-01-29 | 2016-01-29 | hammer device |
PCT/EP2017/051842 WO2017129789A1 (en) | 2016-01-29 | 2017-01-27 | Hammer device |
Publications (2)
Publication Number | Publication Date |
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EP3408058A1 EP3408058A1 (en) | 2018-12-05 |
EP3408058B1 true EP3408058B1 (en) | 2021-10-27 |
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Family Applications (1)
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EP17702830.5A Active EP3408058B1 (en) | 2016-01-29 | 2017-01-27 | Hammer device |
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EP (1) | EP3408058B1 (en) |
DE (1) | DE102016101675B4 (en) |
WO (1) | WO2017129789A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP3450109B1 (en) | 2017-08-28 | 2023-04-26 | Zenz, Holger | Hammer device, preferably hand-held hammer device |
AT520378A1 (en) * | 2017-09-13 | 2019-03-15 | Bbg Baugeraete Gmbh | Tool for exposing breakthroughs in a Klassierwand a grinding drum |
EP3978195A1 (en) * | 2020-09-30 | 2022-04-06 | Hilti Aktiengesellschaft | Chisel and tool holder |
Family Cites Families (15)
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US1609136A (en) * | 1924-06-07 | 1926-11-30 | Chicago Pneumatic Tool Co | Retainer for rivet-cutting tools |
GB243250A (en) * | 1925-03-12 | 1925-11-26 | Ingersoll Rand Co | Improvement in rock drill front ends |
FR666302A (en) * | 1928-12-22 | 1929-09-30 | Meudon Forges Atel | Improvements to pneumatic hammer dampers |
GB344689A (en) * | 1930-03-31 | 1931-03-12 | Ingersoll Rand Co | Improvements in implement retainers for pneumatic tools |
DE956480C (en) * | 1944-01-01 | 1957-01-17 | Siemens Ag | Electrically powered hand spring hammer |
DE1032187B (en) * | 1953-08-17 | 1958-06-12 | Senta Luhr Geb Andresen | Scraper-like insert tool |
NL108835C (en) * | 1956-02-23 | |||
DE1054399B (en) * | 1956-12-22 | 1959-04-09 | Paul Schmidt | Device for loosening stuck rock drill bits from the borehole with a reciprocating mass |
DE2217507B1 (en) * | 1972-04-12 | 1973-08-09 | Bauer, Karlheinz, Dr.-Ing., 8898 Schrobenhausen | Hydraulic hammer and its use for hammer drill |
DE2917830A1 (en) * | 1979-05-03 | 1980-11-06 | Tuenkers Maschinenbau Gmbh | HYDRAULIC PULSE VIBRATION BEAR |
SE444401B (en) * | 1983-01-24 | 1986-04-14 | Atlas Copco Ab | ENERGY ABSORBING POCKET UNIT RECORDING UNIT |
DE4039779A1 (en) * | 1990-12-13 | 1992-06-17 | Bosch Gmbh Robert | Hammer-drill angle attachment |
US7036211B1 (en) * | 2002-06-27 | 2006-05-02 | Panks James K | Percussive power tool pulling device |
DE102011007050B4 (en) * | 2011-04-08 | 2013-10-10 | Michael Müller | Tool for releasing a component component |
US9079286B1 (en) * | 2011-12-15 | 2015-07-14 | Christian DeCamillis | Pneumatic actuator for impact engraving tool |
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2017
- 2017-01-27 EP EP17702830.5A patent/EP3408058B1/en active Active
- 2017-01-27 WO PCT/EP2017/051842 patent/WO2017129789A1/en active Application Filing
Also Published As
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---|---|
EP3408058A1 (en) | 2018-12-05 |
DE102016101675B4 (en) | 2017-08-31 |
DE102016101675A1 (en) | 2017-08-03 |
WO2017129789A1 (en) | 2017-08-03 |
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