CN101318232A - Multifunctional percussion drill - Google Patents
Multifunctional percussion drill Download PDFInfo
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- CN101318232A CN101318232A CNA2008100629094A CN200810062909A CN101318232A CN 101318232 A CN101318232 A CN 101318232A CN A2008100629094 A CNA2008100629094 A CN A2008100629094A CN 200810062909 A CN200810062909 A CN 200810062909A CN 101318232 A CN101318232 A CN 101318232A
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Abstract
A multi-functional impact drill is characterized by comprising an axle base, a main shaft which penetrates and is movably and rotationally arranged in the axle base in the axial direction, a function switching mechanism that is provided with a handle poking part which extends out of the axle base along a radical direction, an impact mechanism, a torsion sleeve which is sheathed at the upper end of the axle base, can rotate correspondingly to the axle base and is provided with outer screw threads, a torsion adjusting mechanism, a torsion rotation sleeve which is provided with a hollow cavity, is sheathed on the torsion adjusting mechanism and can rotate around the main shaft and trigger the torsion adjusting mechanism and comprises an upper torsion rotation sleeve that is provided with inner screw threads which match the outer screw threads of the torsion sleeve to adjust the torsion and a lower torsion rotation sleeve which is provided with a poking part which is matched with the poking handle to realize the switching among the working modes. Compared with the prior art, the drill of the invention has the advantages of rapid and convenient adjusting of the working modes and the corresponding torsion, compact inner structure and less wear among parts.
Description
Technical field
The present invention relates to a kind of percussion drill, relate in particular to a kind of multifunctional percussion drill that can under torsion, boring and three kinds of mode of operations of impact, work.
Background technology
At present, the multifunctional percussion drill that occurs on the market, can be implemented under torsion, boring and three kinds of mode of operations of impact and work, it mainly comprises moment of torsion rotary sleeve, clutch, main shaft, function switching mechanism and beater mechanism, spindle nose is equipped with working head, function switching mechanism is located in the moment of torsion rotary sleeve and is realized the transition trigger of functional mode with the rotation of moment of torsion rotary sleeve, regulate rotation by the moment of torsion rotary sleeve, clutch is controlled to change the rated output power of main shaft, simultaneously also can make percussion drill be in one of three kinds of mode of operations, specific as follows:
The moment of torsion rotary sleeve is under the torsion mode state, load torque on putting on working head is during less than the specified output torque of main shaft, clutch is in connection status, percussion drill is then worked under the torsion mode of setting, can finish screwing of task, otherwise the load torque on putting on working head is during greater than the specified output torque of main shaft, clutch is in trip status, and percussion drill is not worked; The moment of torsion rotary sleeve is under the drill mode state, can be directly delivered to main shaft from the operation torque of motor, finishes drill tasks; The moment of torsion rotary sleeve is under the conflicting model state, and main shaft is reciprocating under the beater mechanism effect, finishes impact function.
The rotation torque rotary sleeve can make the specified output torque of main shaft increase gradually from minimum torsion shelves to the highest torsion shelves, and from the torsion mode to the conflicting model, the specified output torque of main shaft further increases, and during conflicting model, it is maximum that the specified output torque of main shaft reaches.
The similar patent documentation such as the patent No. are utility model patent " the multifunctional percussion drill " (Granted publication number: CN201015864Y) of ZL200720034836.9.This multifunctional percussion drill comprises casing, the axially movable main shaft that is positioned at casing, the motor that is used for drive shaft, the regulating sleeve that is supported on the described casing and can rotates around longitudinal axis, the rotatable conversion ring that is installed on the described main shaft, this conversion ring is provided with first counterpart, the changeover panel of fixedlying connected with casing, this changeover panel is provided with second counterpart, beater mechanism is used for axially drive shaft repeatedly, by along a direction rotary regulating sleeve, this multifunctional percussion drill can be placed in the torsion shelves successively, impact shelves and creep into shelves, described regulating sleeve is provided with stirs element, and regulating sleeve selectable driving conversion ring in rotary course rotates, and the counterpart of winning is selectable to be cooperated with second counterpart thereby make.
But also there is weak point in the multifunctional percussion drill of above-mentioned prior art and patent disclosure, when realizing that different gear different modes are changed, single moment of torsion rotary sleeve rotates back and forth cumbersome, there are 18 grades such as the torque adjustment under the torsion mode, the boring shelves are 19 grades, will finishing now holes earlier afterwards uses 6 grades of moments of torsion to screw, the moment of torsion rotary sleeve to be rotated to the boring shelves so earlier, promptly 19 grades, bored the hole, then the moment of torsion rotary sleeve is rotated to the 6th grade, finish screwing, will twist 13 grades at least so altogether.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of model selection and torque to select respectively to be regulated by moment of torsion rotary sleeve separately the multifunctional percussion drill of control in addition at above-mentioned prior art present situation.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: multifunctional percussion drill is characterized in that comprising
Axle bed has cavity;
Main shaft, axially movable being arranged in also turns setting in the aforementioned axle bed;
Function switching mechanism is placed in the aforementioned axle bed cavity, and has the shank of dialling that extends radially out aforementioned axle bed;
Be used for axially back and forth driving the beater mechanism of aforementioned main shaft;
The torsion cover is sheathed on aforementioned axle bed upper end and rotatable with respect to axle bed, has external screw thread;
Torque adjustment mechanism is located at the aforementioned axle bed outside; And
Be used for the moment of torsion rotary sleeve of mode of operation conversion, have hollow cavity, be sheathed on aforementioned torque adjustment mechanism, can and touch aforementioned torque adjustment mechanism around main axis rotation, this moment of torsion rotary sleeve comprises again
Last moment of torsion rotary sleeve has the internal thread that cooperates with aforementioned torsion cover external screw thread with the adjusting torque;
Following moment of torsion rotary sleeve has and cooperates with aforementioned group of shank to realize the clicking section of mode of operation conversion.
As preferably, structural relation between last moment of torsion rotary sleeve and the following moment of torsion rotary sleeve is as follows: described moment of torsion rotary sleeve upper end down has ring in, the bottom has an outer shroud, be connected with the support portion that is raised in outer shroud and hollow out between interior ring and the outer shroud, and described clicking section is the groove of ring inwall in taking shape in, described go up the moment of torsion rotary sleeve then be sheathed on the outside, aforementioned support portion and will be aforementioned in encircle be placed in.Further, described interior ring front end face radially is extended with stop part, and described groove then is positioned at this stop part below; Described last moment of torsion rotary sleeve bottom lobed slotting ring portion, accordingly, described moment of torsion rotary sleeve outer shroud down has the aforementioned slotting ring of confession portion with the junction, support portion and plugs the storage tank that cooperates.
As preferably, described torque adjustment mechanism can comprise
The top pad is sheathed on the described axle bed step surface and is positioned at described torsion and overlaps the below, has extended radially inwardly lug;
Torque spring is sheathed on described axle bed outer wall, and upper end and described torsion cover offset, and lower end and aforementioned top pad offset; And
Centring ring is sheathed on the aforementioned torsion spring outside, and inwall cooperates with the pad clamping of aforementioned top, and outer wall cooperates with described moment of torsion rotary sleeve clamping down and can rotate with following moment of torsion rotary sleeve,
Accordingly, described axle bed outer wall has and cooperates with aforementioned lug with the axially movable draw-in groove of restriction top pad, and described lug breaks away under the aforementioned draw-in groove state, and top pad axle bed relatively moves axially.
Be convenient to the top and level up face and rotate smooth and easyly, be evenly equipped with several through holes on the described described axle bed step surface, each through hole is provided with the ball that rotates for described top pad from bottom to top, and the diameter of this ball is less than the diameter of through hole.
As preferably, described function switching mechanism can comprise
Last impact conversion block is arranged on the described main shaft rotatably and is placed in the aforementioned axle bed cavity, and described group of shank then takes shape in and impact the conversion block upper end on this, and impact conversion block lower surface has extended axially at least one boss this on;
Under impact conversion block, be arranged on the described main shaft and be positioned at the aforementioned conversion block below correspondence position that go up to impact, this time impact conversion block upper surface axially forms the slit that cooperates with aforementioned boss; And
One impels aforementioned going up to impact conversion block and impact the reposition element that conversion block is in relative position down, and described reposition element is a torsion spring.
As preferably, described beater mechanism can comprise
Moving impact block is sheathed on the described main shaft and is positioned at and impacts the conversion block below down and can move axially with main shaft; And
Quiet impact block is placed on the described main shaft and is positioned at aforementioned moving impact block below correspondence position and is limited in aforementioned axle bed cavity bottom.
Main shaft is rotary setting in axle bed, can be as follows: described main shaft be arranged on the described axle bed rotationally by a rolling journal bearing, and, this rolling journal bearing is located at described axle bed inner chamber leading section and is positioned at and impacts the conversion block top, has the bulge loop that restriction rolling journal bearing moves on axially on the described main shaft.
Compared with prior art, the invention has the advantages that: torsion, boring and three kinds of mode of operations of impact can be by rotation moment of torsion rotary sleeve realization conversion down, and corresponding torque is regulated and can be gone up the realization of moment of torsion rotary sleeve by rotation, and, internal structure is compact to design, and wearing and tearing are less relatively between the parts.
Description of drawings
Fig. 1 is the example structure schematic diagram.
Fig. 2 is the structural representation behind the removal moment of torsion rotary sleeve.
Fig. 3 is the embodiment decomposition assembling figure.
Fig. 4 is the enlargement decomposition of assembly among Fig. 3.
Fig. 5 is provided with structural representation (axle bed is partly analysed and observe) for assembly in axle bed.
Fig. 6 is following moment of torsion rotary sleeve structural representation.
Fig. 7 impacts the mark structure schematic diagram for embodiment is in.
Fig. 8 is in torsion mark structure schematic diagram for embodiment.
Fig. 9 is in boring mark structure schematic diagram for embodiment.
Axle bed internal structure schematic diagram when Figure 10 impacts shelves for embodiment is in.
Axle bed internal structure schematic diagram when Figure 11 is in the torsion shelves for embodiment.
Axle bed internal structure schematic diagram when Figure 12 is in the boring shelves for embodiment.
The specific embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
Embodiment: with reference to figure 1, Fig. 2 and shown in Figure 3, the multifunctional percussion drill in the present embodiment comprises axle bed 1, main shaft 2, function switching mechanism 3, beater mechanism 4, torsion cover 5, torque adjustment mechanism and moment of torsion rotary sleeve 7.Axle bed 1 has cavity 11, main shaft 2 axially movable being arranged in the axle bed 1.
With reference to assembly 10 shown in Figure 4, function switching mechanism 3 is placed in the axle bed cavity 11, comprise again and impact conversion block 31, impact conversion block 32 and reposition element down, wherein, last impact conversion block 31 is arranged on the main shaft 2 rotatably and is placed in the axle bed cavity 11, last impact conversion block 31 upper ends form dials shank 3a, dial shank 3a and extend radially out axle bed 1, on impact conversion block 31 lower surfaces and extended axially four boss 3b; Under impact conversion block 32 and be arranged on the main shaft 2 and be positioned at and impact conversion block 31 below correspondence positions, this time impact conversion block 32 upper surfaces axially form four slit 3c that cooperate with boss 3b; Reposition element is used to impel impact conversion block 31 and the following conversion block 32 that impacts to be in relative position, and reposition element is a torsion spring 33 in the present embodiment.
Beater mechanism 4 is used for axially back and forth drive shaft 2, and beater mechanism 4 comprises moving impact block 41 and quiet impact block 42, and wherein, moving impact block 41 is sheathed on the main shaft 2 and is positioned at and impacts conversion block 32 belows down and can move axially with main shaft 2; Quiet impact block 42 is placed on the main shaft 2 and is positioned at and moves impact block 41 below correspondence positions and be limited in axle bed cavity 11 bottoms.
Torque adjustment mechanism is located at axle bed 1 outside, and torque adjustment mechanism comprises top pad 6, torque spring 8 and centring ring 9 again, and wherein, top pad 6 is sheathed on the axle bed step surface 12 and is positioned at torsion and overlaps 5 belows, has extended radially inwardly lug 61.
Reference diagram is shown in Figure 3, and torque spring 8 is sheathed on axle bed 1 outer wall, and upper end and torsion cover 5 offset, and the lower end offsets with top pad 6; Centring ring 9 is sheathed on torque spring 8 outsides, inwall cooperates with top pad 6 clampings, outer wall cooperates with following moment of torsion rotary sleeve 72 clampings and can be with moment of torsion rotary sleeve 72 rotation down, axle bed 1 outer wall has and cooperates with lug 61 with restriction top pad 6 axially movable draw-in grooves 13, lug 61 breaks away under draw-in groove 13 states, and top pad 6 axle bed 1 relatively moves axially.Also be provided with jump ring 4a and 4b on the main shaft 2.
Be evenly equipped with several through holes 14 on the axle bed step surface 12, each through hole 14 is provided with the ball 10 for top pad 6 rotations from bottom to top, and the diameter of ball 10 is less than the diameter of through hole 14.
Moment of torsion rotary sleeve 7 is used for the mode of operation conversion, has hollow cavity, is sheathed on torque adjustment mechanism, can and touch torque adjustment mechanism around main shaft 2 rotations, and this moment of torsion rotary sleeve 7 comprises moment of torsion rotary sleeve 71 and following moment of torsion rotary sleeve 72 again.
Wherein, last moment of torsion rotary sleeve 71 has and overlaps 5 external screw threads with torsion and cooperate to regulate the internal thread of torque; Following moment of torsion rotary sleeve 72 has and dials shank 3a and cooperates clicking section 72a with the conversion of realization mode of operation.Following moment of torsion rotary sleeve 72 upper ends have ring 721 in, the bottom has an outer shroud 722, be connected with the support portion 723 that is raised in outer shroud 722 and hollow out between interior ring 72 and the outer shroud 722, and the clicking section is the groove 72a of ring 721 inwalls in taking shape in, in 71 of last moment of torsion rotary sleeves are sheathed on 723 outsides, support portion and interior ring 721 is placed in.Interior ring 721 front end faces radially are extended with stop part 72b, and groove 72a then is positioned at this stop part 72b below.Last moment of torsion rotary sleeve 71 bottoms lobed slotting ring portion 711, accordingly, following moment of torsion rotary sleeve outer shroud 722 has the slotting ring of confession portion 711 with 723 junctions, support portion and plugs the storage tank 72c that cooperates.
Operation principle: following moment of torsion rotary sleeve 72 rotations drive to go up simultaneously impacts conversion block 31, centring ring 9 and 6 rotations of top pad, when top pad 6 pushes as shown in Figure 8 the position, the draw-in groove 13 of the lug 61 disengaging axle beds of top pad can be above sliding, and lug 61 is when being in position shown in Figure 7 and shown in Figure 9, lug 61 is restricted in the draw-in groove 13 and can not goes up cunning, and accordingly, functional mode shown in Figure 7 is for impacting shelves, functional mode shown in Figure 8 is the torsion shelves, and functional mode shown in Figure 9 is the boring shelves.When moment of torsion rotary sleeve 71 was gone up in rotation, torsion cover 5 just can slide up and down, thus compression torque spring 8, and then the size variation of realization output torque.
With reference to shown in Figure 10, on impact the boss 3a of conversion block 31 lower surfaces and impact the corresponding combination of slit 3c of conversion block 32 tops down, thereby main shaft 2 is pressed down with moving impact block 41, and then make impact block 41 and quiet impact block touch the generation impact mutually.And Figure 11 and Figure 12 represent to be in torsion shelves and boring mark structure schematic diagram respectively.
Claims (10)
1, a kind of multifunctional percussion drill is characterized in that comprising
Axle bed (1) has cavity (11);
Main shaft (2), axially movable being arranged in also turns setting in the aforementioned axle bed (1);
Function switching mechanism (3) is placed in the aforementioned axle bed cavity (11), and has group shank (3a) that extends radially out aforementioned axle bed (1);
Be used for axially back and forth driving the beater mechanism (4) of aforementioned main shaft (2);
Torsion cover (5) is sheathed on aforementioned axle bed (1) upper end and rotatable with respect to axle bed (1), has external screw thread (51);
Torque adjustment mechanism is located at aforementioned axle bed (1) outside; And
Be used for the moment of torsion rotary sleeve (7) of mode of operation conversion, have hollow cavity, be sheathed on aforementioned torque adjustment mechanism, can rotate and touch aforementioned torque adjustment mechanism around main shaft (2), this moment of torsion rotary sleeve (7) comprises again
Last moment of torsion rotary sleeve (71) has and cooperates with aforementioned torsion cover (5) external screw thread to regulate the internal thread of torque;
Following moment of torsion rotary sleeve (72) has and cooperates with aforementioned group of shank (3a) to realize the clicking section (72a) of mode of operation conversion.
2, multifunctional percussion drill according to claim 1, it is characterized in that described moment of torsion rotary sleeve (72) upper end down has ring (721) in, the bottom has an outer shroud (722), be connected with the support portion (723) that is raised in outer shroud (722) and hollow out between interior ring (721) and the outer shroud (722), and described clicking section is for taking shape in the groove (72a) of interior ring (721) inwall, described go up moment of torsion rotary sleeve (71) then be sheathed on the outside, aforementioned support portion (723) and will be aforementioned in encircle in (721) be placed in.
3, multifunctional percussion drill according to claim 2 is characterized in that described interior ring (721) front end face radially is extended with stop part (72b), and described groove (72a) then is positioned at this stop part (72b) below.
4, multifunctional percussion drill according to claim 3, it is characterized in that described moment of torsion rotary sleeve (71) the bottom lobed slotting ring portion (711) of going up, accordingly, described down moment of torsion rotary sleeve outer shroud (722) has the aforementioned slotting ring portion of confession (711) with junction, support portion (723) and plugs the storage tank (72c) that cooperates.
5, multifunctional percussion drill according to claim 1 is characterized in that described torque adjustment mechanism comprises
Top pad (6) is sheathed on described axle bed step surface (12) and goes up and be positioned at described torsion cover (5) below, has extended radially inwardly lug (61);
Torque spring (8) is sheathed on described axle bed (1) outer wall, and upper end and described torsion cover (5) offset, and lower end and aforementioned top pad (6) offset; And
Centring ring (9) is sheathed on aforementioned torsion spring (8) outside, and inwall cooperates with aforementioned top pad (6) clamping, and outer wall cooperates with described moment of torsion rotary sleeve (72) clamping down and can rotate with following moment of torsion rotary sleeve (72),
Accordingly, described axle bed (1) outer wall has and cooperates with aforementioned lug (61) with restriction top pad (6) axially movable draw-in groove (13), and described lug (61) breaks away under aforementioned draw-in groove (13) state, and top pad (6) axle bed (1) relatively moves axially.
6, multifunctional percussion drill according to claim 5, it is characterized in that being evenly equipped with on the described described axle bed step surface (12) several through holes (14), each through hole (14) is provided with the ball (10) for described top pad (6) rotation from bottom to top, and the diameter of this ball (10) is less than the diameter of through hole (14).
7,, it is characterized in that described function switching mechanism (3) comprises according to the described multifunctional percussion drill of the arbitrary claim of claim 1～6
Last impact conversion block (31), being arranged at described main shaft (2) rotatably goes up and is placed in the aforementioned axle bed cavity (11), described group of shank (3a) then takes shape in and impacts conversion block (31) upper end on this, impacts conversion block (31) lower surface on this and extended axially at least one boss (3b);
Under impact conversion block (32), be arranged at described main shaft (2) and go up and be positioned at aforementioned going up and impact conversion block (31) below correspondence position, this time impact conversion block (32) upper surface axially forms the slit (3c) that cooperates with aforementioned boss (3b); And
One impels aforementioned going up to impact conversion block (31) and impact the reposition element that conversion block (32) is in relative position down.
8, multifunctional percussion drill according to claim 7 is characterized in that described reposition element is a torsion spring (33).
9, multifunctional percussion drill according to claim 7 is characterized in that described beater mechanism (4) comprises
Moving impact block (41) is sheathed on described main shaft (2) and goes up and be positioned at and impact conversion block (32) below down and can move axially with main shaft (2); And
Quiet impact block (42) is placed in described main shaft (2) and goes up and be positioned at aforementioned moving impact block (41) below correspondence position and be limited in aforementioned axle bed cavity (11) bottom.
10, multifunctional percussion drill according to claim 7, it is characterized in that described main shaft (2) is arranged on the described axle bed (1) rotationally by a rolling journal bearing (101), and, this rolling journal bearing (101) is located at described axle bed inner chamber (11) leading section and is positioned at and impacts conversion block (31) top, has the bulge loop (21) that restriction rolling journal bearing (101) moves on axially on the described main shaft (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100629094A CN101318232A (en) | 2008-07-03 | 2008-07-03 | Multifunctional percussion drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2008100629094A CN101318232A (en) | 2008-07-03 | 2008-07-03 | Multifunctional percussion drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101318232A true CN101318232A (en) | 2008-12-10 |
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ID=40178641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2008100629094A Pending CN101318232A (en) | 2008-07-03 | 2008-07-03 | Multifunctional percussion drill |
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| CN (1) | CN101318232A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101188A (en) * | 2009-12-18 | 2011-06-22 | 罗伯特.博世有限公司 | Power drill |
| CN102101187A (en) * | 2009-12-18 | 2011-06-22 | 罗伯特.博世有限公司 | Power drill |
| CN102431013A (en) * | 2011-09-13 | 2012-05-02 | 南京久驰机电实业有限公司 | Electric drill with driving mode switching |
| CN103522263A (en) * | 2013-10-18 | 2014-01-22 | 东莞百事得电动工具有限公司 | Impact switching device of electric tool gearbox |
| CN104923827A (en) * | 2015-05-08 | 2015-09-23 | 浙江理工大学 | Pulse impulsion manual drilling tool |
| CN105437162A (en) * | 2014-06-30 | 2016-03-30 | 南京德朔实业有限公司 | Torque output tool and transmission mechanism |
-
2008
- 2008-07-03 CN CNA2008100629094A patent/CN101318232A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102101188A (en) * | 2009-12-18 | 2011-06-22 | 罗伯特.博世有限公司 | Power drill |
| CN102101187A (en) * | 2009-12-18 | 2011-06-22 | 罗伯特.博世有限公司 | Power drill |
| CN102101187B (en) * | 2009-12-18 | 2015-07-22 | 罗伯特.博世有限公司 | Power drill |
| CN102431013A (en) * | 2011-09-13 | 2012-05-02 | 南京久驰机电实业有限公司 | Electric drill with driving mode switching |
| CN102431013B (en) * | 2011-09-13 | 2014-08-20 | 南京久驰机电实业有限公司 | Electric drill with driving mode switching |
| CN103522263A (en) * | 2013-10-18 | 2014-01-22 | 东莞百事得电动工具有限公司 | Impact switching device of electric tool gearbox |
| CN105437162A (en) * | 2014-06-30 | 2016-03-30 | 南京德朔实业有限公司 | Torque output tool and transmission mechanism |
| CN104923827A (en) * | 2015-05-08 | 2015-09-23 | 浙江理工大学 | Pulse impulsion manual drilling tool |
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