CN102470523A

CN102470523A - Hammer-drilling and/or cutting device

Info

Publication number: CN102470523A
Application number: CN2010800307043A
Authority: CN
Inventors: H·施密德; H·吕布扎门; T·赫尔
Original assignee: Robert Bosch GmbH
Current assignee: Robert Bosch GmbH
Priority date: 2009-07-09
Filing date: 2010-05-10
Publication date: 2012-05-23
Anticipated expiration: 2030-05-10
Also published as: RU2538466C2; WO2011003646A1; EP2451615A1; DE102009027560A1; CN102470523B; EP2451615B1; RU2012103933A

Abstract

The invention is based on a hammer-drilling and/or cutting device having an impact mechanism (24) and an intermediate shaft (36; 60; 84; 106), which are in each case mounted substantially parallel to an axial direction, and having a gearbox housing (10) and an intermediate flange (20; 80; 102; 116). The invention proposes that the hammer-drilling and/or cutting device comprise a bearing shield (38; 58; 82; 104) which is detachably connected to the intermediate flange (20; 80; 102; 116) and is provided to support the intermediate shaft (36; 60; 84; 106) and at least one component of the impact mechanism (24).

Description

Hammer drill and/or cutter turning device

Technical field

The present invention relates to a kind of according to claim 1 hammer drill as described in the preamble and/or cutter turning device.

Background technology

Having proposed to be used in the bearing cap that supports beater mechanism and jackshaft removably is connected with the gear mechanism housing of drilling and/or cutter turning device.

Summary of the invention

The present invention relates to a kind of hammer drill and/or cutter turning device, it comprises and is arranged essentially parallel to the beater mechanism that axially is supported and jackshaft respectively and comprises gear mechanism housing and spacer flanger." hammer drill device " should especially be understood that a kind of rig of the beater mechanism of can be manual, having known type in context, the impact energy of beater mechanism is irrelevant with the thrust that operator by the hammer drill device applies in this rig.Beater mechanism is at the beater mechanism pipe of this ram that is driven by driven plunger by a driven plunger, one, supporting driven plunger and/or ram and be made up of an impact piston when needed.

" cutter turning device " in context, should especially be understood that a kind of can be manual, the chiso-mallet or the hammer drill of the beater mechanism of type are described before having, the impact energy of beater mechanism is irrelevant with the thrust that operator by chiso-mallet or hammer drill applies in this chiso-mallet or hammer drill." axially " should especially be understood that a direction that is parallel to ram at the heading of the run duration of hammer drill and/or cutter turning device hereinbefore.

Advise; Hammer drill and/or cutter turning device comprise bearing cap; This bearing cap removably is connected and is set at least one parts of supporting jackshaft and supporting beater mechanism with spacer flanger, can provide thus a kind of simple, save material and save the space and the solution that is used for fixing and supports jackshaft and beater mechanism parts with low cost thus.Preferably, the beater mechanism parts that are bearing in the bearing cap are hollow pistons.Advantageously, a beater mechanism pipe that is set in a known way the hollow piston guiding is shortened consumingly in this situation, can save material and structure space thus and can provide abnormal cost cheap solution.

Also suggestion, spacer flanger be the rigid bearing lid in the axial direction.Can realize fixing and supporting simple and with low cost especially thus to jackshaft and beater mechanism parts.The common methods that is used for fixing bearing cap well known to those skilled in the art also is feasible with device in principle.Advantageously, hammer drill and/or cutter turning device can have at least one and be threaded, and this is threaded to be set for bearing cap removably is connected with spacer flanger.Particularly advantageously be, bearing cap has clamping element, and this clamping element is set for and at least one running status, sets up the clamping of bearing cap between spacer flanger and gear mechanism housing.Preferably; The bearing cap clamping of passing through between spacer flanger and gear mechanism housing of fixing in the axial direction realizes that wherein at least one corresponding element of clamping element and gear mechanism housing and/or spacer flanger produces a clamping force of dauer effect diametrically after when assembling, using a power that acts in the axial direction." radially " in context, should especially be understood that such direction, this direction from axial azimuth axis perpendicular to this axial azimuth axis.Especially, clamping element can be constructed to the inclined-plane.Can realize the clamping of bearing cap and fixing thus with mode simple especially and saving member thus.

In a kind of favourable design; The bearing cap that is used to support jackshaft have one have a bearing outer member bearing; This bearing outer member removably is connected with spacer flanger, can realize saving material thus and save space and solution with low cost thus, that be used for fixing and support jackshaft.Preferably, the bearing outer member can removably be connected through at least one screw with spacer flanger.But also can use the device that removably connects that is used between bearing outer member and spacer flanger, setting up well known by persons skilled in the art in principle.

Suggestion in addition; The bearing cap that is used to support jackshaft have one have a bearing inner member bearing; The inner ring of this bearing inner member and at least one driving bearing moulding integratedly and have the ball-bearing groove of at least one grinding, this bearing is designed with can simply and saving the space thus.Advantageously, bearing ball can bear axial force and the radial load that occurs at run duration by the ball-bearing groove that grinds." driving bearing " should especially be understood that regularly maybe to connect the bearing of ground and jackshaft coupling through the device that is provided with for this reason in context, and this bearing is set at least one running gear the reciprocating motion that rotatablely moving of driven jackshaft is converted into another or other parts of said hammer drill and/or cutter turning device.

Driving bearing preferably is set for oscillatory gearing mechanism rotatablely moving of an axle, for example jackshaft is converted into a reciprocating motion that is used to produce the axial impact pulse.

In another kind of design; Be used to support the bearing cap of jackshaft to comprise that one has the bearing of the distance piece that the inner ring with driving bearing separates, this distance piece is at the ball-bearing groove of the inside that has bearing on the outside and on the inboard, be equipped with the sliding bearing that is used to support jackshaft.Can save space and the bearing that sets with low cost thus.Advantage is, bearing ball can bear at run duration in the power that axially upwards occurs with the footpath, and is positioned at inner plain bearing surfaces and can advantageously supports jackshaft.

Set up shape with at least one inner ring of driving bearing during sealed the connection when the distance piece that separates, a kind of simple and compact especially solution can be provided.

Suggestion in addition; The bearing cap that is used to support jackshaft comprises bearing; This bearing have one have at least one ball-bearing groove the bearing inner member, this bearing inner member constitutes integratedly with the inner ring of first driving bearing and is connected with the inner ring of second driving bearing through extruding and is connected.The saving space of jackshaft and fixing and supporting scheme with low cost can be realized thus, wherein, the convertibility easily of inner ring can be realized in addition.

In the favourable design of another kind; The bearing cap that is used to support jackshaft has bearing; This bearing comprises a combination of being made up of needle bearing and thrust bearing, and an element of needle bearing element and thrust bearing is configured to one in this combination.Can realize the fixing and supporting scheme simple and with low cost of jackshaft thus.Advantageously, this bearing can bear the power in the axial direction that is in operation and occurs avoiding making under the situation of ball-bearing groove.

Regulation in addition, the bearing cap that is used to support jackshaft has bearing, and this bearing is observed between two driving bearings that are set at jackshaft in the axial direction.Be arranged between two driving bearings through this bearing, can realize particularly advantageous power distribution, can realize the supporting structure simple and with low cost especially of jackshaft thus jackshaft.

Description of drawings

Other advantage is provided by following description of drawings.Embodiments of the invention shown in the drawings.Accompanying drawing, specification and claim contain a large amount of assemblage characteristics.Those skilled in the art also consider these characteristics aptly separately and it are combined into significant other combination.

Fig. 1 illustrates according to the schematic views of hammer drill of the present invention with the cutter turning device,

Fig. 2 illustrates the detailed view according to hammer drill with the gear mechanism housing of cutter turning device of Fig. 1,

Fig. 3 illustrates the detail view of the another kind of design of the bearing cap that is used to support jackshaft,

Fig. 4 illustrate the bearing cap that is used to support jackshaft another kind of design detail view and

Fig. 5 illustrates the detail view of the another kind of design of the bearing cap that is used to support jackshaft.

The specific embodiment

Fig. 1 illustrate have gear mechanism housing 10, motor shell 12, handgrip 16 and the hammer drill of console switch 18 and the schematic views of cutter turning device.On the intermediate location between motor shell 12 and the gear mechanism housing 10, be provided with a spacer flanger 20, this spacer flanger extend in the gear mechanism housing 10.On the end of the hammer drill and the boring direction side of cutter turning device, a tool fitting 22 partly is arranged in the beater mechanism pipe 26.The inner beater mechanism 24 of gear mechanism housing 10 also comprises an impact bolt 28, a driven plunger that in beater mechanism pipe 26, be directed to, that be implemented as hollow piston 32 and a ram that in hollow piston 32, is directed to 30 with known manner except beater mechanism pipe 26.Hollow piston 32 is hinged on the driving bearing 34 that is constructed to swash drive, and this driving bearing is driven by a motor 14 that is arranged in the motor shell 12 through the jackshaft 36 that is configured to toothed shank.Axially through confirming at hammer drill and the heading of cutter turning device run duration ram 30 in hollow piston 32.Beater mechanism 24, motor 14 and jackshaft 36 are parallel to this respectively and axially are supported.Radially be restricted to perpendicular to this axially and from this axially.

Shown in Fig. 2 according to the hammer drill of Fig. 1 detailed view with the gear mechanism housing 10 of cutter turning device.A bearing cap 38 removably is connected with spacer flanger 20, this bearing cap be set for supporting jackshaft 36 and beater mechanism 24 parts, be hollow piston 32.Bearing cap 38 is fixing through spacer flanger 20 in the axial direction.Bearing cap 38 has the magnitude of interference in the axial direction, make in when assembling bearing cap 38 is being installed after the axial force generation clamping through permanent action between spacer flanger 20 and gear mechanism housing 10.Clamping element 40 that is constructed to the inclined-plane on bearing cap 38 outward flanges be set at least one running status, set up bearing cap 38 clamping between spacer flanger 20 and gear mechanism housing 10 diametrically and in addition in this wise with gear mechanism housing 10 in boss 42 and with terminal seamed edge 44 mating reactions of spacer flanger 20, make when assembling one in the axial direction insisting on of effect produce for a long time in the axial direction and the clamping force of effect diametrically.

Bearing cap 38 is equipped with a sliding bearing 39 in order to support hollow piston 32.This bearing cap 38 has a bearing 46 that has bearing outer member 48 in order to support jackshaft 36, and this bearing outer member is coupled in the dead slot 50 of bearing cap 38.The bearing inner member 52 of bearing 46 and inner ring 54 moulding integratedly of driving bearing 34 and have the ball-bearing groove 56 of a grinding.

Other embodiment is described below, has wherein changed the supporting structure of jackshaft 60,84,106.The supporting structure of hollow piston 32 with implemented in shown in Fig. 2 and above-mentioned mode identically and do not drawn from clearly considering.

Fig. 3 illustrates the another kind of design of the bearing cap 58 that is used to support jackshaft 60.Bearing cap 58 comprises a bearing 62 with distance piece 72 of opening in 64 minutes with the inner ring of driving bearing 68 in order to support jackshaft 60.This distance piece 72 has the internal ball raceway 74 of bearing 62 on the outside.Distance piece 72 is provided with the sliding bearing 76 that is used to support jackshaft 60 on the inboard.See in the axial direction, be provided with the

inner ring

64,66 of two

driving bearings

68,70 in distance piece 72 front and backs, distance piece 72 forms with these inner rings that shape is sealed to be connected.The bearing 62 that is used to support jackshaft 60 has a bearing outer member 78, and this bearing outer member is connected by threaded connection detachable ground with spacer flanger 80.

Another kind of design at the bearing cap 82 that is used to support jackshaft 84 shown in Fig. 4.Bearing cap 82 has a bearing 86 in order to support jackshaft 84, this bearing observes two driving bearings 88 being arranged on jackshaft 84 in the axial direction, between 90.The bearing 86 that is used to support jackshaft 84 comprises a bearing inner member 92, and the inner ring 94 of one of this bearing inner member and two driving bearings 90 constitutes integratedly.The inner ring 94 that is configured to one with bearing inner member 92 that bearing inner member 92 has one of 96, two driving bearings of a ball-bearing groove 90 by extruding be connected with two bearings in another inner ring of 88 93 be connected and comprise another ball-bearing groove 98 of driving bearing 90.The bearing 86 that is used to support jackshaft 84 has a bearing outer member 100, and this bearing outer member is connected by threaded connection detachable ground with spacer flanger 102.

Fig. 5 illustrates the another kind of design of the bearing cap 104 that is used to support jackshaft 106.Bearing cap 104 has a bearing 108 in order to support jackshaft 106; This bearing comprises a combination of being made up of needle bearing 110 and thrust bearing 112, and the bearing element 114 of needle bearing 110 is configured to one with the bearing element 114 of thrust bearing 112 in this combination.Bearing cap 104 is connected by threaded connection detachable ground with spacer flanger 116.

Claims

1. hammer drill and/or cutter turning device comprise being arranged essentially parallel to beater mechanism (24) and the jackshaft (36 that axially is supported respectively; 60; 84; 106) and comprise gear mechanism housing (10) and spacer flanger (20; 80; 102; 116), it is characterized in that,

Be provided with a bearing cap (38; 58; 82; 104), said bearing cap and said spacer flanger (20; 80; 102; 116) removably connect and be set for the supporting said jackshaft (36; 60; 84; 106) and at least one parts of said beater mechanism (24).

2. hammer drill according to claim 1 and/or cutter turning device is characterized in that, said beater mechanism (24) be bearing in said bearing cap (38; 58; 82; 104) parts in are hollow piston (32).

3. hammer drill according to claim 1 and 2 and/or cutter turning device is characterized in that said spacer flanger (20; 80; 102; 116) fixing in the axial direction said bearing cap (38; 58; 82; 104).

4. according to each described hammer drill in the above claim and/or cutter turning device, it is characterized in that, be used to support said jackshaft (60; 84) said bearing cap (58; 82) have one and have bearing outer member (78; 100) bearing (62; 86), said bearing outer member and said spacer flanger (80; 102) removably connect.

5. according to each described hammer drill in the above claim and/or cutter turning device, it is characterized in that, be used to support said jackshaft (36; 84) said bearing cap (38; 82) have one and have bearing inner member (52; 92) bearing (46; 86), said bearing inner member and at least one driving bearing (34; 88,90) inner ring (54; 94) moulding integratedly and have the ball-bearing groove (56 of at least one grinding; 96,98).

6. according to each described hammer drill in the above claim and/or cutter turning device; It is characterized in that; The said bearing cap (58) that is used to support said jackshaft (60) comprises that one has and driving bearing (68; The bearing (62) of the distance piece (72) that inner ring 70) (64,66) separates, said distance piece (72) is at the ball-bearing groove (74) of the inside that has said bearing (62) on the outside and on the inboard, be equipped with the sliding bearing (76) that is used to support said jackshaft (60).

7. hammer drill according to claim 6 at least and/or cutter turning device is characterized in that the said distance piece (72) that separates is set up the sealed connection of shape with at least one inner ring (64,66) of driving bearing (68,70).

8. according to each described hammer drill in the above claim and/or cutter turning device; It is characterized in that the said bearing cap (82) that is used to support said jackshaft (84) has bearing (86), said bearing has one and has at least one ball-bearing groove (96; 98) bearing inner member (92); The inner ring (94) of said bearing inner member and first driving bearing (88,90) constitutes integratedly and connects through the inner ring (93) of extruding connection with second driving bearing (88,90).

9. according to each described hammer drill in the above claim and/or cutter turning device; It is characterized in that; The said bearing cap (104) that is used to support said jackshaft (106) has bearing (108); Said bearing comprises the combination of being made up of needle bearing (110) and thrust bearing (112), constitutes integratedly at a bearing element (114) of needle bearing described in the said combination (110) and a bearing element (114) of said thrust bearing (112).

10. according to each described hammer drill in the above claim and/or cutter turning device, it is characterized in that, be used to support said jackshaft (60; 84) said bearing cap (58; 82) has bearing (62; 86), said bearing is observed in the axial direction and is set at said jackshaft (60; 84) two driving bearings (68,70; 88,90) between.