CN203711919U - Torque adjusting mechanism for percussion drill - Google Patents
Torque adjusting mechanism for percussion drill Download PDFInfo
- Publication number
- CN203711919U CN203711919U CN201420061882.8U CN201420061882U CN203711919U CN 203711919 U CN203711919 U CN 203711919U CN 201420061882 U CN201420061882 U CN 201420061882U CN 203711919 U CN203711919 U CN 203711919U
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- China
- Prior art keywords
- stepwise
- circle
- tiltedly
- percussion drill
- torque
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Abstract
The utility model relates to technical field of percussion drills, in particular to a torque adjusting mechanism of a percussion drill. The torque adjusting mechanism comprises a torque sleeve and a pressure seat which sleeves a rotating shaft of the percussion drill, wherein the pressure seat is internally provided with a hold-down mechanism for adjusting torque output, the outer side of the pressure seat is sequentially sleeved with a spring gasket, a torque spring, a lower stepped oblique ring and an upper stepped oblique ring matched with the lower stepped oblique ring from back to front. Compared with a traditional torque adjusting mechanism, parts of the torque adjusting mechanism provided by the utility model are fewer, and the structure is simple; besides, the adjusting mechanism adopts the stepped oblique rings, and multiple gear positions are arranged on the end faces of the stepped oblique rings, so that gears are clear during adjusting, and slipping during vibration can be avoided due to the mutual meshing among the gear positions.
Description
Technical field
The utility model relates to percussion drill technical field, relates in particular to a kind of torque adjustment mechanism of percussion drill.
Background technology
At present, percussion drill mainly comprises power set (as: motor), electric drill impacts conversion equipment, turning cylinder, drill chuck, the front end of drill chuck can be installed different drilling tool (as: centre drills according to purposes, drill bit, reamer, screw tap etc.), the rear end of drill chuck is connected with the front end of turning cylinder, the rear end of turning cylinder is connected with power set by gear mechanism, gear mechanism be used for slowing down rotating speed increase torsion, and rotary axle box is provided with torque adjustment mechanism, impact output mechanism, function switching mechanism, torque adjustment mechanism is the output torque of regulating rotary moving axis as required, impacting output mechanism can drive turning cylinder to be output as conflicting model, function switching mechanism can be changed turning cylinder as required between electric drill pattern and conflicting model.In use, power set drive turning cylinder to rotate by gear mechanism, by turning cylinder, drive drill chuck to rotate, and make drill chuck can carry out electric drill operation or impact operation.But the torque adjustment mechanism of percussion drill in prior art, needs a plurality of parts to coordinate, complex structure; And the gear regulating is unclear, when vibration, easily skid.
Utility model content
The purpose of this utility model be to provide for the deficiencies in the prior art a kind of simple in structure, gear is clear, the torque adjustment mechanism of the percussion drill that skids can prevent from vibrating time.
To achieve these goals, the utility model provides a kind of torque adjustment mechanism of percussion drill, comprise torque sleeve, be sheathed on the pressure seat of the turning cylinder of percussion drill, in described pressure seat, be provided with for regulating the hold-down mechanism of moment of torsion output, the outside of described pressure seat is tiltedly enclosed, is tiltedly enclosed the stepwise of appearing on the stage mating tiltedly enclose with described leave from office stepwise to the front spring shim, torsion spring, leave from office stepwise of being arranged with successively by rear; Described spring shim, torsion spring, leave from office stepwise tiltedly circle are the sheathed outside of being fixed on described pressure seat, described in appear on the stage stepwise tiltedly circle for being sheathed on rotationally the outside of described pressure seat; The rear end of described torsion spring props up described hold-down mechanism by spring shim, and the front end of described torsion spring props up the tiltedly bottom of circle of described leave from office stepwise; Described leave from office stepwise tiltedly front end, the stepwise of appearing on the stage of circle is tiltedly provided with for regulating the step type oblique circle of clutch height the rear end of circle, and the end face of this step type oblique circle is provided with several tooth positions; Described torque sleeve the is sheathed tiltedly periphery of circle of stepwise of appearing on the stage described in being fixed on, make described torque sleeve by rotate appear on the stage described in driving stepwise tiltedly circle rotate simultaneously.
Described step type oblique circle comprises inner ring, outer ring, and described outer ring is arranged at the periphery of inner ring, and described inner ring, outer ring be along circumference to tilt to increase height, and the end face of described inner ring, the end face of outer ring are provided with described several tooth positions.
The tooth position of described step type oblique circle comprises cambered surface, is close to the inclined-plane of described cambered surface, and the radius of described cambered surface is 1～8 millimeter, and the angle of described inclined-plane and horizontal plane is 1～12 degree.
The inner side of described torque sleeve is provided with some raised lines, the described stepwise of appearing on the stage tiltedly encloses anterior arranged outside the groove corresponding with described raised line, the raised line of described torque sleeve and the tiltedly groove clamping of circle of stepwise of appearing on the stage, the tiltedly periphery of circle of stepwise of appearing on the stage described in making that described torque sleeve is sheathed and being fixed on.
The arranged outside of described pressure seat front portion has locating dowel, and described spring shim, the oblique circle of leave from office stepwise all offer the locating hole corresponding with described locating dowel.
Also comprise functional localization sheet, described functional localization sheet is sheathed on the turning cylinder of percussion drill, the locating dowel front end of described pressure seat offers screw, and described functional localization sheet is screwed in described pressure seat, and the functional localization sheet tiltedly front end of circle of stepwise of appearing on the stage described in propping up.
The outside at described pressure seat rear portion offers several evenly pressure ports spaced apart, is provided with puck, pressure steel ball in this pressure port, and described spring shim props up the hold-down mechanism of percussion drill successively through puck, pressure steel ball.
The utility model beneficial effect is: compare with existing torque adjustment mechanism, torque adjustment of the present utility model mechanism parts are less, simple in structure; And the utility model adopts the adjustment structure of step type oblique circle, the end face of step type oblique circle is provided with several tooth positions, and while making to regulate, gear is clear, and the mutual interlock of tooth position is skidded in the time of can preventing from vibrating.
Accompanying drawing explanation
Fig. 1 is the decomposing schematic representation of torque adjustment of the present utility model mechanism.
Fig. 2 is the structural representation of torque adjustment of the present utility model mechanism while being installed on percussion drill.
Fig. 3 is the partial cutaway schematic of torque adjustment of the present utility model mechanism while being installed on percussion drill.
Fig. 4 is the structural representation that Fig. 2 conceals torque sleeve.
Fig. 5 is the oblique structural representation of circle of leave from office stepwise of torque adjustment of the present utility model mechanism.
Fig. 6 is the oblique side view of circle of leave from office stepwise of torque adjustment of the present utility model mechanism.
Fig. 7 is the enlarged diagram at A place in Fig. 6.
Reference numeral:
1---pressure seat, 11---locating dowel, 12---pressure port, 13---puck, 14---pressure steel ball, 2---spring shim, 3---torsion spring, 41---leave from office stepwise tiltedly encloses, and 42---the stepwise of appearing on the stage tiltedly encloses, and 421---groove, 40---step type oblique circle, 401---tooth position, 401a---cambered surface, 401b---inclined-plane, 402---inner ring, 403---outer ring, 5---functional localization sheet, 51---screw, 6---torque sleeve, 61---raised line, 7---turning cylinder, 8---hold-down mechanism.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Please refer to Fig. 1～7, the torque adjustment mechanism of the utility model percussion drill, comprise torque sleeve 6, be sheathed on the pressure seat 1 of the turning cylinder 7 of percussion drill, in pressure seat 1, be provided with for regulating the hold-down mechanism 8 of moment of torsion output, by the compression degree of regulation hold-down mechanism 8, just can regulate the moment of torsion output of percussion drill, this belongs to prior art, repeats no more herein.Wherein, the outside of pressure seat 1 is tiltedly enclosed 41, is tiltedly enclosed the 41 oblique circles 42 of the stepwises of appearing on the stage that mate with leave from office stepwise by rear extremely front spring shim 2, torsion spring 3, the leave from office stepwise of being arranged with successively; Spring shim 2, torsion spring 3, leave from office stepwise tiltedly circle 41 are the sheathed outside of being fixed on pressure seat 1, and the stepwise of appearing on the stage tiltedly circle 42 is to be sheathed on rotationally the outside of pressure seat 1; The rear end of torsion spring 3 props up hold-down mechanism 8 by spring shim 2, and the front end of torsion spring 3 props up the tiltedly bottom of circle 41 of leave from office stepwise; Leave from office stepwise tiltedly front end, the stepwise of appearing on the stage of circle 41 is tiltedly provided with for regulating the step type oblique circle 40 of clutch height the rear end of circle 42, and the end face of this step type oblique circle 40 is provided with several tooth positions 401; The sheathed tiltedly periphery of circle 42 of stepwise of appearing on the stage of being fixed on of torque sleeve 6, makes torque sleeve 6 drive by rotating tiltedly circle 42 rotation simultaneously of stepwise of appearing on the stage.From said structure, can find out, torsion spring 3 is placed between the oblique circle 41 of leave from office stepwise and the hold-down mechanism 8 of percussion drill, so, can overlap 6 by driving torque and drive tiltedly circle 42 rotations of stepwise of appearing on the stage, to regulate appear on the stage stepwise tiltedly circle 42 and the oblique height enclosing between 41 of leave from office stepwise, thereby regulate torsion spring 3 to compress or loosen the hold-down mechanism 8 of percussion drill, realize the moment of torsion output that regulates percussion drill.
Preferably, step type oblique circle 40 comprises inner ring 402, outer ring 403, outer ring 403 is arranged at the periphery of inner ring 402, and inner ring 402, outer ring 403 be along circumference to tilt to increase height, and the end face of the end face of inner ring 402, outer ring 403 is provided with several tooth positions 401.Wherein, the tooth position 401 of step type oblique circle 40 comprises the inclined-plane 401b of cambered surface 401a, next-door neighbour's cambered surface 401a, and the radius of cambered surface 401a (R) is 1～8 millimeter, and the angle of inclined-plane 401b and horizontal plane (d) is 1～12 degree.For example: as shown in Fig. 5～7, leave from office stepwise in the present embodiment tiltedly step type oblique circle 40 of circle 41 front ends comprises inner ring 402, outer ring 403, outer ring 403 is arranged at the periphery of inner ring 402, and inner ring 402, outer ring 403 is along circumference and tilts to increase height, certainly, the highest point of the highest point of inner ring 402 and outer ring 403 staggers mutually, and the end face of inner ring 402, the end face of outer ring 403 is provided with several tooth positions 401, tooth position 401 comprises cambered surface 401a, the inclined-plane 401b of next-door neighbour's cambered surface 401a, the radius of cambered surface 401a is 1～8 millimeter, the angle of inclined-plane 401b and horizontal plane is 1～12 degree.In the present embodiment, the step type oblique circle 40 that the stepwise of appearing on the stage tiltedly encloses 42 rear ends is identical with step type oblique circle 40 structures that leave from office stepwise tiltedly encloses 41 front ends, like this, can make the formula of topping bar tiltedly enclose 42 and cooperatively interact with the oblique circle 41 of leave from office stepwise, the clutch realizing between the oblique circle 42 of the stepwise of appearing on the stage and the oblique circle 41 of leave from office stepwise highly regulates.This simple in structure, easy to adjust.
Preferably, the inner side of torque sleeve 6 is provided with some raised lines 61, the stepwise of appearing on the stage the tiltedly arranged outside of circle 42 front portions has the groove corresponding with raised line 61 421, and the raised line 61 of torque sleeve 6 and tiltedly groove 421 clampings of circle 42 of stepwise of appearing on the stage make the sheathed tiltedly periphery of circle 42 of stepwise of appearing on the stage of being fixed on of torque sleeve 6.So torque sleeve 6, when rotating, can drive tiltedly circle 42 rotations of stepwise of appearing on the stage, this simple in structure, easy for installation.
Preferably, the arranged outside of pressure seat 1 front portion has locating dowel 11, and spring shim 2, leave from office stepwise tiltedly circle 41 all offer the locating hole corresponding with locating dowel 11, makes spring shim 2, leave from office stepwise tiltedly enclose 41 and all can sheathedly be fixed on pressure seat 1.
Preferably, torque adjustment of the present utility model mechanism also comprises functional localization sheet 5, functional localization sheet 5 is sheathed on the turning cylinder 7 of percussion drill, locating dowel 11 front ends of pressure seat 1 offer screw, make functional localization sheet 5 be fixed on pressure seat 1 by screw 51, and functional localization sheet 5 props up the tiltedly front end of circle 42 of stepwise of appearing on the stage, with the spacing tiltedly circle 42 of stepwise of appearing on the stage, the stepwise that makes to appear on the stage tiltedly circle 42 can not skid off.
Preferably, the outside at pressure seat 1 rear portion offers several evenly pressure ports 12 spaced apart, in this pressure port 12, be provided with puck 13, pressure steel ball 14, spring shim 2 passes through puck 13 successively, pressure steel ball 14 and prop up the hold-down mechanism 8 of percussion drill, be that puck 13 is between the rear end and pressure steel ball 14 of spring shim 2, make the pressure of torsion spring 3 rear ends can pass through successively spring shim 2, puck 13, pressure steel ball 14 and pass to the hold-down mechanism 8 of percussion drill, this structure can make hold-down mechanism 8 stressed more even of percussion drill.Wherein, puck 13 is cylinder.
Torque adjustment mechanical work principle of the present utility model: when user need to regulate the output torque of percussion drill turning cylinder 7, user can pass through driving torque cover 6 forward or backwards, make torque sleeve 6 drive the oblique circle 42 of the stepwise of appearing on the stage to rotate forward or backwards, regulate the height of the oblique circle 41 of leave from office stepwise reduce or increase, the stepwise that makes to leave office tiltedly encloses 41 compressions or loosens torsion spring 3, thereby make torsion spring 3 compress or loosen the hold-down mechanism 8 of percussion drill, to realize accordingly the increase of percussion drill turning cylinder 7 output torques or to reduce.
Therefore, compare with existing torque adjustment mechanism, torque adjustment of the present utility model mechanism parts are less, simple in structure; And the utility model adopts the adjustment structure of step type oblique circle 40, the end face of step type oblique circle 40 is provided with several tooth positions 401, and while making to regulate, gear is clear, and the mutual interlock of tooth position 401 is skidded in the time of can preventing from vibrating.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; the technical solution of the utility model is modified or is equal to replacement, all belong to protection domain of the present utility model.
Claims (7)
1. the torque adjustment mechanism of a percussion drill, it is characterized in that: comprise torque sleeve, be sheathed on the pressure seat of the turning cylinder of percussion drill, in described pressure seat, be provided with for regulating the hold-down mechanism of moment of torsion output, the outside of described pressure seat is tiltedly enclosed, is tiltedly enclosed the stepwise of appearing on the stage mating tiltedly enclose with described leave from office stepwise to the front spring shim, torsion spring, leave from office stepwise of being arranged with successively by rear; Described spring shim, torsion spring, leave from office stepwise tiltedly circle are the sheathed outside of being fixed on described pressure seat, described in appear on the stage stepwise tiltedly circle for being sheathed on rotationally the outside of described pressure seat; The rear end of described torsion spring props up described hold-down mechanism by spring shim, and the front end of described torsion spring props up the tiltedly bottom of circle of described leave from office stepwise; Described leave from office stepwise tiltedly front end, the stepwise of appearing on the stage of circle is tiltedly provided with for regulating the step type oblique circle of clutch height the rear end of circle, and the end face of this step type oblique circle is provided with several tooth positions; Described torque sleeve the is sheathed tiltedly periphery of circle of stepwise of appearing on the stage described in being fixed on, make described torque sleeve by rotate appear on the stage described in driving stepwise tiltedly circle rotate simultaneously.
2. the torque adjustment mechanism of percussion drill according to claim 1, it is characterized in that: described step type oblique circle comprises inner ring, outer ring, described outer ring is arranged at the periphery of inner ring, and described inner ring, outer ring are along circumference to tilt to increase height, and the end face of described inner ring, the end face of outer ring are provided with described several tooth positions.
3. the torque adjustment mechanism of percussion drill according to claim 1 and 2, it is characterized in that: the tooth position of described step type oblique circle comprises cambered surface, is close to the inclined-plane of described cambered surface, the radius of described cambered surface is 1～8 millimeter, and the angle of described inclined-plane and horizontal plane is 1～12 degree.
4. the torque adjustment mechanism of percussion drill according to claim 3, it is characterized in that: the inner side of described torque sleeve is provided with some raised lines, the described stepwise of appearing on the stage tiltedly encloses anterior arranged outside the groove corresponding with described raised line, the raised line of described torque sleeve and the tiltedly groove clamping of circle of stepwise of appearing on the stage, the tiltedly periphery of circle of stepwise of appearing on the stage described in making that described torque sleeve is sheathed and being fixed on.
5. the torque adjustment mechanism of percussion drill according to claim 4, is characterized in that: the arranged outside of described pressure seat front portion has locating dowel, and described spring shim, the oblique circle of leave from office stepwise all offer the locating hole corresponding with described locating dowel.
6. the torque adjustment mechanism of percussion drill according to claim 5, it is characterized in that: also comprise functional localization sheet, described functional localization sheet is sheathed on the turning cylinder of percussion drill, the locating dowel front end of described pressure seat offers screw, described functional localization sheet is screwed in described pressure seat, and the functional localization sheet tiltedly front end of circle of stepwise of appearing on the stage described in propping up.
7. the torque adjustment mechanism of percussion drill according to claim 6, it is characterized in that: the outside at described pressure seat rear portion offers several evenly pressure ports spaced apart, in this pressure port, be provided with puck, pressure steel ball, described spring shim props up the hold-down mechanism of percussion drill successively through puck, pressure steel ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061882.8U CN203711919U (en) | 2014-02-11 | 2014-02-11 | Torque adjusting mechanism for percussion drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420061882.8U CN203711919U (en) | 2014-02-11 | 2014-02-11 | Torque adjusting mechanism for percussion drill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203711919U true CN203711919U (en) | 2014-07-16 |
Family
ID=51151118
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420061882.8U Expired - Fee Related CN203711919U (en) | 2014-02-11 | 2014-02-11 | Torque adjusting mechanism for percussion drill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203711919U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158940A (en) * | 2017-10-25 | 2019-01-08 | 杭州富阳锦丰纸业有限公司 | A kind of torque limiter that architectural engineering electric drilling device uses |
| CN110290355A (en) * | 2019-07-24 | 2019-09-27 | 国网河北省电力有限公司邢台供电分公司 | A kind of high-altitude count table observation cleaning plant and observation method for cleaning |
-
2014
- 2014-02-11 CN CN201420061882.8U patent/CN203711919U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109158940A (en) * | 2017-10-25 | 2019-01-08 | 杭州富阳锦丰纸业有限公司 | A kind of torque limiter that architectural engineering electric drilling device uses |
| CN109158940B (en) * | 2017-10-25 | 2020-09-18 | 杭州富彩包装制品有限公司 | Torque limiter for electric drill equipment in constructional engineering |
| CN110290355A (en) * | 2019-07-24 | 2019-09-27 | 国网河北省电力有限公司邢台供电分公司 | A kind of high-altitude count table observation cleaning plant and observation method for cleaning |
| CN110290355B (en) * | 2019-07-24 | 2021-05-18 | 国网河北省电力有限公司邢台供电分公司 | High altitude count table is surveyd cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140716 Termination date: 20160211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |