CN107504133A - A kind of worm type of reduction gearing - Google Patents
A kind of worm type of reduction gearing Download PDFInfo
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- CN107504133A CN107504133A CN201710981090.0A CN201710981090A CN107504133A CN 107504133 A CN107504133 A CN 107504133A CN 201710981090 A CN201710981090 A CN 201710981090A CN 107504133 A CN107504133 A CN 107504133A
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- 230000009467 reduction Effects 0.000 title claims abstract description 39
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 238000009434 installation Methods 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
- 238000005299 abrasion Methods 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 2
- 238000007789 sealing Methods 0.000 description 9
- 206010006514 bruxism Diseases 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011435 rock Substances 0.000 description 4
- 210000000515 tooth Anatomy 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 230000008719 thickening Effects 0.000 description 3
- 241000237858 Gastropoda Species 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000013011 mating Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H1/00—Toothed gearings for conveying rotary motion
- F16H1/02—Toothed gearings for conveying rotary motion without gears having orbital motion
- F16H1/04—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members
- F16H1/12—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes
- F16H1/16—Toothed gearings for conveying rotary motion without gears having orbital motion involving only two intermeshing members with non-parallel axes comprising worm and worm-wheel
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H57/00—General details of gearing
- F16H57/02—Gearboxes; Mounting gearing therein
- F16H57/023—Mounting or installation of gears or shafts in the gearboxes, e.g. methods or means for assembly
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Gear Transmission (AREA)
Abstract
The invention provides a kind of worm type of reduction gearing, belong to field of mechanical technique.It solves the problems, such as that existing worm type of reduction gearing degree of regulation is poor, easy to wear.This worm type of reduction gearing, including the housing with axis hole, worm gear and, worm screw, adjusting set, lock sleeve and clamping screw one, adjusting set is threaded in lock sleeve, locking is set on housing close to the end of worm screw output end, the output end of worm screw is axially fixed in adjusting set, slide and be located in axis hole in the Inner ends of lock sleeve, outer end has the annular convex edge portion of protrusion, the threaded shank of clamping screw one is threadedly coupled through annular convex edge portion with housing, and annular convex edge portion is pressed on housing by the head of clamping screw one.This worm type of reduction gearing eliminates the thread pitch between lock sleeve and adjusting set by lock sleeve and cooperations that pushes away of the pressure of adjusting set one one, and clamping screw one thread pitch of itself can almost be ignored, and degree of regulation height reduces the abrasion of worm gear.
Description
Technical field
The invention belongs to field of mechanical technique, is related to a kind of worm type of reduction gearing.
Background technology
Decelerator is that a kind of gear drive, worm-drive, pinion-endless screw transmission by being enclosed in stiff case is formed
Individual components, the speed reduction gearing being commonly used between driving link and working machine, its main function be reduce rotating speed, increase turn
Square.The species of decelerator is various, can be divided into gear reduction unit, worm type of reduction gearing and planetary gear speed-reduction according to actuation types
Device.
Worm gear gyration aperture is bigger in existing worm type of reduction gearing, and gap conference causes the inaccuracy of dividing movement
Property, vibrations and noise can be caused by having when intermittent load and frequent rotating, aggravate the abrasion of worm gear.
For above-mentioned problem, the applicant, which is made that, improves and has applied patent, (application number：
201320246627.6) disclose a kind of high-precision worm type of reduction gearing, including housing, be arranged on the snail being meshed in housing
Bar and worm gear, enclosure interior are provided with one and are set on worm screw and can be relative to adjustment spiral shell of the housing along the axial movement of worm screw
Mother, the input of institute worm screw are supported in adjusting nut by bearing assembly, and the output end of worm screw is by can be along worm screw axial direction
For mobile ball bearings in housing, the transverse tooth thickness of worm screw is thickening successively by output end to input.It uses adjusting nut
Worm screw movement is driven, so that being connected between worm and wheel by the minimum grinding tooth in gap, between elimination worm and gear
Gap.But above-mentioned turbine and worm decelerator still suffers from following defect：Although above-mentioned decelerator is by by the transverse tooth thickness of worm screw
It is arranged to thickening successively by output end to input, and is connected to by the adjusting nut of input end in housing, passes through adjustment
The screw thread of nut and housing coordinates to adjust position of the adjusting nut in housing, so as to drive worm screw movement to eliminate worm and gear
Gap, but because adjusting nut is provided in input end, also to connect shaft coupling and motor on input, hold during adjustment
Easily interfere, operation is more inconvenient.Simultaneously as the screw thread of adjusting nut and housing coordinates, that is to say, that regulation can only root
Realized according to the spacing size of screw thread, the distance of adjusting nut movement, that is, the spacing size adjusted is that have a range of, regulation
Low precision, and certain gap inherently be present in the screw thread of adjusting nut, and the rotation that this gap passes through adjusting nut is
Eliminating what is do not fallen, either radially or on axial direction trickle skew can be also produced in the interstice coverage, stability is poor,
So as to related cause between worm and gear or can have certain gap, easily cause after run time is long vibrations and
Noise, aggravate the abrasion of worm gear.
The content of the invention
The purpose of the present invention is above mentioned problem be present for existing technology, it is proposed that a kind of worm type of reduction gearing, this
The technical problems to be solved by the invention are：The gap between worm and gear how is preferably eliminated, reduces the abrasion of worm gear.
The purpose of the present invention can be realized by following technical proposal：A kind of worm type of reduction gearing, including with axis hole
Housing, the worm gear that is arranged in housing and slip be located in worm screw in axis hole, it is characterised in that this decelerator also includes adjusting
Section set, lock sleeve and clamping screw one, the adjusting set are threaded in the lock sleeve, and the locking is set on housing
Close to the end of worm screw output end, the output end of the worm screw is axially fixed in the adjusting set, the Inner of the lock sleeve
End slip is located in the axis hole, and outer end has the annular convex edge portion of protrusion, and the threaded shank of the clamping screw one passes through ring
Shape convex edge portion is threadedly coupled with housing, and annular convex edge portion is pressed on housing by the head of the clamping screw one.
The transverse tooth thickness of the worm screw of this worm type of reduction gearing is thickening successively along input to output end, while the input of worm screw
Circumferentially rotate and be connected in axis hole and can axially be slided along axis hole, output end is connected in adjusting set, adjusting set threaded connection
In lock sleeve, during installation and adjustment, lock sleeve is promoted the annular convex edge portion of lock sleeve is resisted against housing toward sliding in axis hole
On, clamping screw one is tightened, compressing annular convex edge portion by the head of clamping screw one fixes lock sleeve and housing, Ran Houzai
Rotating adjusting set inside drives worm screw to move inside so that is connected between worm and wheel by the minimum grinding tooth in gap.By
There is the annular convex edge portion of protrusion in the outer end of lock sleeve, the fixation of lock sleeve is tightened inside with strength by clamping screw one
So as to compress the realization of annular convex edge portion, i.e., lock sleeve is compressed inside by clamping screw one, and adjusting set rotates inside again
Worm screw is set by the reaction force of worm screw to there is the trend pushed out after being meshed with turbine, the cooperation pushed away by a pressure one can
The thread pitch between lock sleeve and adjusting set is eliminated, and clamping screw one is a more small-sized part in itself, relative to existing
Size is smaller for some adjusting nuts, and existing thread pitch itself is compared and the existing screw thread on existing adjusting nut
Also very little for gap, can almost ignore, therefore enable to worm and gear to be in tight engagement all the time, be not in
Gap, degree of regulation is high, reduces the abrasion of worm gear.Moreover, lock sleeve is to slide to be located in housing close to worm screw output end
End, therefore, also can be then past at any time by continuing to tighten lock sleeve and clamping screw one even if there is trickle loosening
Interior rotation adjusting set is timely adjusted, and will not be interfered with miscellaneous part during regulation, operation is more convenient.
In above-mentioned worm type of reduction gearing, this decelerator also includes clamping screw two, and the annular convex edge portion includes
Annular convex edge one and annular convex edge two, there is gap between the annular convex edge one and annular convex edge two and pass through some contiguous blocks
Connection, the threaded shank of the clamping screw one is threadedly coupled through annular convex edge one with housing, and the head of the clamping screw one
Annular convex edge one is pressed on housing by portion, and the threaded shank of the clamping screw two passes through annular convex edge two and the spiral shell of annular convex edge one
Line is connected, and the head of the clamping screw two is pressed in annular convex edge two.Annular convex edge one is pressed on by clamping screw one
After on housing, adjusting set is rotated inside and drives worm screw to move inside so that passes through the grinding tooth of gap minimum between worm and wheel
It is connected.Because annular convex edge one with annular convex edge two is connected by some contiguous blocks, annular convex edge one and annular convex edge two
Between there is gap, then tighten clamping screw two, annular convex edge one and annular convex edge two can be mutually tensioned, can be further
Eliminate the thread pitch between lock sleeve and adjusting set.Clamping screw is enough eliminated by the effect of mutual tensile force, and can simultaneously
One and clamping screw two itself existing for thread pitch, so as to further such that worm and gear all the time in be fitted close shape
State, be not in gap, degree of regulation is higher, reduces the abrasion of worm gear.
In above-mentioned worm type of reduction gearing, it is blind that the housing offers installation on the end face of worm screw output end
The bottom surface of installing blind is run through in hole, described axis hole one end, and the annular convex edge one is embedded in the installing blind and is compacted patch
Lean against on the bottom surface of installing blind, the end face that the bottom surface of the installing blind and annular convex edge one mutually recline with installing blind
It is plane.The bottom surface of installing blind and annular convex edge one and the end face that installing blind mutually reclines are both designed as plane, two
Plane abuts, lock sleeve be locked bolt one compress after each several part uniformity and stability it is good, generation skew will not be rocked,
Coordinate under the reaction force that adjusting set passes through worm screw, so that between preferably eliminating the screw thread between lock sleeve and adjusting set
Gap so that worm and gear is in tight engagement all the time, is not in gap, and degree of regulation is higher, reduces the mill of worm gear
Damage.
In above-mentioned worm type of reduction gearing, several through holes one, institute are circumferentially offered in the annular convex edge one
State and several screwed holes one corresponding with above-mentioned through hole one, the screw rod of the clamping screw one are offered on the bottom surface of installing blind
Portion is threaded in corresponding screwed hole one through through hole one, and several and above-mentioned through hole are offered in the annular convex edge two
One relative through hole, the head of the clamping screw one can pass through above-mentioned through hole, in the annular convex edge two circumferentially
Several through holes two are offered, several screwed holes two corresponding with above-mentioned through hole two, institute are offered in the annular convex edge one
The threaded shank for stating clamping screw two is threaded in corresponding screwed hole two through through hole two, the clamping screw one and locking
Bolt two is located on same circumference.By above-mentioned setting, clamping screw one and clamping screw two in annular convex edge portion circumferentially
It is uniformly distributed, so that each several part uniform force, uniformity is good, will not be glanced off because local pressure is larger.And lock
Bolt one and clamping screw two are located on same circumference so that the stress point of tight bolt one and clamping screw two to annular convex edge portion
It is on same circumference, is eliminated so as to more preferable, more direct existing for clamping screw one and clamping screw two itself
Gap, so as to be not in gap, degree of regulation is more further such that worm and gear is in tight engagement all the time
Height, reduce the abrasion of worm gear.
In above-mentioned worm type of reduction gearing, several spacing blind holes one, institute are further opened with the annular convex edge one
The aperture for stating spacing blind hole one is more than the aperture of through hole one and connected with above-mentioned through hole one one-to-one corresponding, the clamping screw one
Head is embedded in spacing blind hole one and is resisted against on the bottom surface of spacing blind hole one, and some limits are further opened with the annular convex edge two
Position blind hole two, the aperture of the spacing blind hole two is more than the aperture of through hole two and connection corresponding with above-mentioned through hole 211, described
The head of clamping screw two is embedded in spacing blind hole two and is resisted against on the bottom surface of spacing blind hole two, the bottom of the spacing blind hole one
Face, clamping screw one head on leant with the spacing bottom surface of blind hole one end face, spacing blind hole two bottom surface and locking screw
The end face to be leant on the head of bolt two with the spacing bottom surface of blind hole two is plane.Spacing blind hole one and spacing blind hole two are set
Meter so that the head of clamping screw one and clamping screw two can be embedded in, and will not protrude annular convex edge one and annular convex edge two
End face, and between the head of clamping screw one and the bottom surface of the spacing blind hole one and head of clamping screw two with it is spacing blind
It is that plane coordinates against stability is more preferable, so that worm and gear is all the time in tight fit shape between the bottom surface in hole two
State, be not in gap, degree of regulation is high, reduces the abrasion of worm gear.
In above-mentioned worm type of reduction gearing, some contiguous blocks are circumferentially distributed and the annular convex edge one, convex annular
It is integral type structure along two and contiguous block, above-mentioned through hole one also is provided with contiguous block junction in the annular convex edge one, it is described
Above-mentioned through hole is also correspondingly provided with annular convex edge two with the junction of contiguous block, and the through hole at this runs through the contiguous block
Connected with through hole one.Through hole one also is provided with contiguous block junction in annular convex edge one, by being also provided with locking in the through hole one
Tight bolt one so that annular convex edge one can remain and be pressed on housing that stability is good, so that worm and gear is all the time
Be not in gap, degree of regulation is high, reduces the abrasion of worm gear in tight engagement.
In above-mentioned worm type of reduction gearing, the outer peripheral face of the lock sleeve is smooth surface, the inner side of the axis hole
Wall is smooth surface, and the lock sleeve slip is located in the axis hole and outer peripheral face is abutted on the madial wall of axis hole.Locking
The outer peripheral face of set and the madial wall of axis hole are both designed as smooth surface, and the outer peripheral face of lock sleeve is abutted on the madial wall of axis hole,
Stability is good, further ensures lock sleeve and will not diametrically produce skew and rock, so that worm and gear is in all the time
Tight engagement, be not in gap, degree of regulation is high, reduces the abrasion of worm gear.
There is the recessed shoulder of annular, the ring in above-mentioned worm type of reduction gearing, on the internal perisporium of the lock sleeve outer end
The recessed shoulder of shape is provided with internal thread, and the outer end of the adjusting set has annular boss, has external screw thread on the annular boss and lead to
Internal thread and externally threaded mating connection are crossed in the above-mentioned recessed shoulder of annular, the Inner ends of the adjusting set penetrate the lock sleeve it is interior and
Mutually reclined with the internal perisporium at lock sleeve Inner ends.By setting the recessed shoulder of annular on the internal perisporium of lock sleeve, then on annular recessed shoulder
Internal thread is set, and the outer end of adjusting set, which is set on annular boss and annular boss, has external screw thread, so as to ensure adjusting set
Inner ends through after the recessed shoulder of annular, the internal perisporium of adjusting set can keep mutually reclining with the internal perisporium of lock sleeve, diametrically not
Skew can be produced to rock, so that worm and gear is in tight engagement all the time, be not in gap, degree of regulation is high,
Reduce the abrasion of worm gear.
In above-mentioned worm type of reduction gearing, the internal perisporium at the lock sleeve Inner ends and the periphery wall at adjusting set Inner ends are equal
For smooth surface.The internal perisporium at lock sleeve Inner ends and the periphery wall at adjusting set Inner ends are both designed as smooth surface, and both mutually paste
Lean on, stability is good, further ensures lock sleeve and will not diametrically produce skew and rock, so that worm and gear is located all the time
Be not in gap, degree of regulation is high, reduces the abrasion of worm gear in tight engagement.
In above-mentioned worm type of reduction gearing, the periphery wall at the adjusting set Inner ends and the periphery wall at lock sleeve Inner ends
On offer annular seal groove, be equipped with O-ring seal in the annular seal groove.Pass through the design of O-ring seal, energy
The sealing between adjusting set and lock sleeve and between lock sleeve and shaft hole inner wall is enough realized, prevents the impurity in air etc. from entering
In axis hole, worm and gear is caused to corrode.
In above-mentioned worm type of reduction gearing, the adjusting set is cylindrical in shape and both ends open, the opening of the adjusting set
Place is additionally provided with closure one, and for the lateral wall tight abutment of the closure one on the internal perisporium of adjusting set, the axis hole is close
Be provided with closure two at one end port of worm screw input, the closure two in a ring, the outer ring side wall of the closure two
For tight abutment on the madial wall of axis hole, inner ring has sealing lip, and the worm screw is supported through the inner ring and sealing lip of closure two
Lean against on worm screw.The design of closure one and closure two, sealing of the axis hole in input and output end can be ensured, prevent sky
Impurity in gas etc. enters in axis hole, and worm and gear is caused to corrode.
Compared with prior art, this worm type of reduction gearing has advantages below：
1st, the fixation of lock sleeve is to tighten to realize so as to compress annular convex edge portion inside with strength by clamping screw one,
I.e. for lock sleeve toward internal pressure, adjusting set rotates inside again makes worm screw have after being meshed with turbine by the reaction force of worm screw
The trend pushed out, so as to which the cooperation pushed away by a pressure one eliminates the thread pitch between lock sleeve and adjusting set, and lock
Bolt one is a more small-sized part in itself, and size is smaller for existing adjusting nut, existing screw thread itself
Gap compare with also very little for the existing thread pitch on existing adjusting nut, can almost ignore, therefore can make
Obtain worm and gear and be in tight engagement all the time, be not in gap, degree of regulation is high, reduces the abrasion of worm gear.
2nd, annular convex edge one and annular convex edge two can be mutually tensioned by clamping screw two, so as to eliminate clamping screw one
Existing thread pitch itself, while by the effect of mutual tensile force, thread pitch existing for clamping screw two itself also can
Enough it is eliminated, so as to further such that worm and gear is in tight engagement all the time, be not in gap, degree of regulation
It is higher, reduce the abrasion of worm gear.
3rd, the design of O-ring seal, closure one and closure two, can realize multi-sealed, prevent miscellaneous in air
Matter etc. enters in axis hole, and worm and gear is caused to corrode.
Brief description of the drawings
Fig. 1 is the three-dimensional structure diagram of this worm type of reduction gearing.
Fig. 2 is the sectional view of this worm type of reduction gearing.
Fig. 3 is the three-dimensional structure diagram of lock sleeve.
Fig. 4 is the front view of lock sleeve.
Fig. 5 is the sectional view in A-A directions in Fig. 4.
Fig. 6 is the sectional view in B-B directions in Fig. 4.
Fig. 7 is the three-dimensional structure diagram of adjusting set.
Fig. 8 is the sectional view of adjusting set.
In figure, 1, housing；1a, axis hole；1b, installing blind；1c, screwed hole one；2nd, worm gear；3rd, worm screw；4th, adjusting set；
4a, annular boss；5th, lock sleeve；5a, annular convex edge one；5a1, through hole one；5a2, screwed hole two；5a3, spacing blind hole one；5b、
Annular convex edge two；5b1, through hole；5b2, through hole two；5b3, spacing blind hole two；5c, gap；5d, contiguous block；5e, annular are recessed
Shoulder；6th, clamping screw one；7th, clamping screw two；8th, closure one；9th, closure two；9a, sealing lip.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
As illustrated in fig. 1 and 2, this worm type of reduction gearing, including housing 1, worm gear 2, worm screw 3, adjusting set 4, lock sleeve 5,
Clamping screw 1 and clamping screw 27, worm gear 2 are arranged in housing 1, and the transverse tooth thickness of worm screw 3 becomes successively along input to output end
Thickness, worm screw 3, which slides, to be located in axis hole 1a and is engaged with worm gear 2.
The axis hole 1a through the both ends of the surface of housing 1 is offered on housing 1, the input of worm screw 3 is connected to by ball bearing
In axis hole 1a, the input of worm screw 3 passes through the inner ring of ball bearing and fixed with the inner ring of ball bearing, the outer ring of ball bearing
Abut on axis hole 1a inwall and can be slided along axis hole 1a.Axis hole 1a is provided with one end port of the input of worm screw 3
Closure 29, in a ring, the outer ring side wall of closure 29 has the annular abutment flange to be formed that bends inwards to closure 29,
For annular abutment flange tight abutment on axis hole 1a madial wall, inner ring has sealing lip 9a, is gone back on sealing lip 9a lateral wall
The mounting groove of annular is offered, is arranged with clip in mounting groove, sealing lip 9a clampings are resisted against on worm screw 3 by clip.
Housing 1 offers installing blind 1b on the end face of the output end of worm screw 3, and installing blind 1b is run through in axis hole 1a one end
Bottom surface.Lock sleeve 5 is arranged on housing 1 close to the end of the output end of worm screw 3, and the outer peripheral face of lock sleeve 5 is smooth surface, axle
Hole 1a madial wall is smooth surface, and the Inner ends slip of lock sleeve 5 is located in axis hole 1a and outer peripheral face abuts in axis hole 1a's
On madial wall, stability is good, will not diametrically produce skew and rock.
As shown in figures 2-6, the outer end of lock sleeve 5 has the annular convex edge portion of protrusion.Annular convex edge portion includes annular convex edge
There is gap 5c between one 5a and annular convex edge two 5b, the 5a of annular convex edge one and the 5b of annular convex edge two and pass through some contiguous block 5d
Connection, gap 5c run through the inwall of lock sleeve 5, and some contiguous block 5d are uniformly distributed circumferentially and the 5a of annular convex edge one, annular
The 5b of convex edge two and contiguous block 5d is integral type structure.Several through holes one 5a1 is circumferentially uniformly offered on the 5a of annular convex edge one
With several spacing 5a3 of blind hole one, the spacing 5a3 of blind hole one aperture of the aperture more than the 5a1 of through hole one and with the 5a1 of through hole one one by one
Corresponding connection.Several screwed hole one 1cs corresponding with the 5a1 of through hole one, annular convex edge two are offered on installing blind 1b bottom surface
Several through hole 5b1s relative with the 5a1 of through hole one are offered on 5b, the 5a of annular convex edge one is embedded in installing blind 1b, locking
The threaded shank of bolt 1 is threaded in the corresponding 1c of screwed hole one through the 5a1 of through hole one, the head energy of clamping screw 1
Enough through through hole 5b1, and the head of clamping screw 1 is embedded in the spacing 5a3 of blind hole one and is resisted against the spacing 5a3's of blind hole one
On bottom surface and the 5a of annular convex edge one is compressed and abutted on installing blind 1b bottom surface, installing blind 1b bottom surface and annular
The end face that the 5a of convex edge one reclines with installing blind 1b phases is plane.It also is provided with the 5a of annular convex edge one with contiguous block 5d junctions
Through hole one 5a1, the 5b of annular convex edge two and contiguous block 5d junction are also correspondingly provided with through hole 5b1, and the through hole 5b1 at this
Connected through contiguous block 5d with the 5a1 of through hole one.
Several 5b2 of through hole two and some 5b3 of spacing blind hole two are circumferentially uniformly offered on the 5b of annular convex edge two, it is spacing
The 5b3 of blind hole two aperture, which is more than the 5b2 of through hole two aperture and corresponded with the 5b2 of through hole two, to be connected.Opened on the 5a of annular convex edge one
Provided with several screwed hole two 5a2s corresponding with the 5b2 of through hole two, the threaded shank of clamping screw 27 connects through the 5b2 screw threads of through hole two
Corresponding to being connected in the 5a2 of screwed hole two.The head of clamping screw 27 is embedded in the spacing 5b3 of blind hole two and is resisted against spacing blind hole
On two 5b3 bottom surface, offseted on the spacing 5a3 of blind hole one bottom surface, the head of clamping screw 1 with the spacing 5a3 bottom surfaces of blind hole one
Leant on end face, the 5b3 of spacing blind hole two bottom surface and the head of clamping screw 27 leaned on the spacing 5b3 bottom surfaces of blind hole two
End face be plane.Clamping screw 1 and clamping screw 27 are located on same circumference and spaced distribution.
As shown in figure 5, having the recessed shoulder 5e of annular on the internal perisporium of the outer end of lock sleeve 5, the recessed shoulder 5e of annular is provided with internal thread.
As shown in FIG. 7 and 8, adjusting set 4 is cylindrical in shape and both ends open, the opening of adjusting set 4 are additionally provided with closure 1, closure 1
Lateral wall tight abutment on the internal perisporium of adjusting set 4.The outer end of adjusting set 4 has an annular boss 4a, on annular boss 4a
With external screw thread and by internal thread and externally threaded mating connection in the recessed shoulder 5e of annular, the Inner ends of adjusting set 4 penetrate locking
Mutually reclined in set 5 and with the internal perisporium at the Inner ends of lock sleeve 5.The periphery wall at the Inner ends of adjusting set 4 and the periphery wall at the Inner ends of lock sleeve 5
On offer annular seal groove, be equipped with O-ring seal in annular seal groove, can realize adjusting set 4 and lock sleeve 5 it
Between and the sealing between lock sleeve 5 and axis hole 1a inwalls, prevent impurity in air etc. from entering in axis hole 1a, to the snail of worm gear 2
Bar 3 causes to corrode.The end of adjusting set 4 be additionally provided with it is some be used for for instrument insertion put forth effort hole, be easy to the rotation of adjusting set 4 to adjust
Section.
Taper roll bearing one and taper roll bearing two are provided with adjusting set 4, there is protrusion on the madial wall of adjusting set 4
Annular abutment platform, taper roll bearing one and taper roll bearing two are located at the both sides of annular abutment platform respectively.Worm screw 3 it is defeated
Go out end through taper roll bearing one and the inner ring of taper roll bearing two, there is axle journal, taper roller in the output end of worm screw 3
Bearing two is fixedly clamped between axle journal and annular abutment platform, and locking nut, circular cone are also threaded with the output end of worm screw 3
Roller bearing one is locked between locking nut and annular abutment platform.
During installation and adjustment, lock sleeve 5 is promoted toward sliding in axis hole 1a and drive adjusting set 4 and worm screw 3 is moved, lock sleeve 5
The 5a of annular convex edge one insertions installing blind 1b in and be resisted against on installing blind 1b bottom surface, tighten clamping screw 1, pass through
The head of clamping screw 1 compresses the 5a of annular convex edge one, is then rotated further by adjusting set 4, adjusting set 4 by threaded function continue to
Moved in axis hole 1a so that be connected between worm screw 3 and worm gear 2 by the minimum grinding tooths of gap 5c, adjusting set 4 move inward to
Next reaction force by worm screw 3 has the trend that pushes out, so as to the cooperation pushed away by a pressure one eliminate lock sleeve 5 with
Thread pitch between adjusting set 4.Then tighten clamping screw 27 again, coordinate the 5a of the annular convex edge one and 5b of annular convex edge two it
Between gap 5c effect, the 5a of annular convex edge one and the 5b of annular convex edge two can be mutually tensioned, can further eliminate lock sleeve 5
With the thread pitch between adjusting set 4, while also eliminated by the effect of mutual tensile force existing for clamping screw 1 itself
Thread pitch existing for thread pitch and clamping screw 27 itself, closely match somebody with somebody so that the worm screw 3 of worm gear 2 is in all the time
Conjunction state, be not in gap, degree of regulation is higher, reduces the abrasion of worm gear 2.Moreover, after long-time use, even if occurring
Trickle loosening, also can timely it be adjusted by continuing to tighten lock sleeve 5 and clamping screw 1 at any time, during regulation
It will not be interfered with miscellaneous part, operation is more convenient.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (10)
1. a kind of worm type of reduction gearing, including the housing (1) with axis hole (1a), the worm gear (2) that is arranged in housing (1) and
Slip is located in the worm screw (3) in axis hole (1a), it is characterised in that this decelerator also include adjusting set (4), lock sleeve (5) and
Clamping screw one (6), the adjusting set (4) are threaded in the lock sleeve (5), and the lock sleeve (5) is arranged on housing
(1) it is axially fixed in close to the end of worm screw (3) output end, the output end of the worm screw (3) in the adjusting set (4), institute
The Inner ends slip for stating lock sleeve (5) is located in the axis hole (1a), and outer end has the annular convex edge portion of protrusion, the locking screw
The threaded shank of bolt one (6) is threadedly coupled through annular convex edge portion with housing (1), and the head of the clamping screw one (6) is by ring
Shape convex edge portion is pressed on housing (1).
2. worm type of reduction gearing according to claim 1, it is characterised in that this decelerator also includes clamping screw two
(7), the annular convex edge portion includes annular convex edge one (5a) and annular convex edge two (5b), the annular convex edge one (5a) and annular
There is gap (5c) between convex edge two (5b) and connected by some contiguous blocks (5d), the threaded shank of the clamping screw one (6)
It is threadedly coupled through annular convex edge one (5a) with housing (1), and the head of the clamping screw one (6) is by annular convex edge one (5a)
It is pressed on housing (1), the threaded shank of the clamping screw two (7) passes through annular convex edge two (5b) and annular convex edge one (5a) spiral shell
Line is connected, and the head of the clamping screw two (7) is pressed in annular convex edge two (5b).
3. worm type of reduction gearing according to claim 2, it is characterised in that the housing (1) exports close to worm screw (3)
Installing blind (1b) is offered on the end face at end, the bottom surface of installing blind (1b), the annular are run through in described axis hole (1a) one end
Convex edge one (5a) is embedded in the installing blind (1b) and is compacted and abuts on installing blind (1b) bottom surface, and the installation is blind
The end face that the bottom surface in hole (1b) and annular convex edge one (5a) mutually recline with installing blind (1b) is plane.
4. worm type of reduction gearing according to claim 3, it is characterised in that on the annular convex edge one (5a) circumferentially
Several through holes one (5a1) are offered, several and above-mentioned through hole one (5a1) are offered on the bottom surface of the installing blind (1b)
Corresponding screwed hole one (1c), the threaded shank of the clamping screw one (6) are threaded in corresponding spiral shell through through hole one (5a1)
In pit one (1c), several through holes relative with above-mentioned through hole one (5a1) are offered on the annular convex edge two (5b)
(5b1), the head of the clamping screw one (6) can pass through above-mentioned through hole (5b1), along week on the annular convex edge two (5b)
To several through holes two (5b2) are offered, it is right with above-mentioned through hole two (5b2) that several are offered on the annular convex edge one (5a)
The screwed hole two (5a2) answered, the threaded shank of the clamping screw two (7) are threaded in corresponding spiral shell through through hole two (5b2)
In pit two (5a2), the clamping screw one (6) and clamping screw two (7) are located on same circumference.
5. worm type of reduction gearing according to claim 4, it is characterised in that also opened up on the annular convex edge one (5a)
Have several spacing blind holes one (5a3), the aperture of the spacing blind hole one (5a3) be more than the aperture of through hole one (5a1) and with it is upper
State through hole one (5a1) and correspond connection, the head of the clamping screw one (6) be embedded in spacing blind hole one (5a1) and against
On the bottom surface of spacing blind hole one (5a3), some spacing blind holes two (5b3), institute are further opened with the annular convex edge two (5b)
The aperture for stating spacing blind hole two (5b3) is more than the aperture of through hole two (5b2) and connected with above-mentioned through hole two (5b2) one-to-one corresponding,
The head of the clamping screw two (7) is embedded in spacing blind hole two (5b3) and is resisted against on the bottom surface of spacing blind hole two (5b3),
Leant on the bottom surface of the spacing blind hole one (5a3), the head of clamping screw one (6) with spacing blind hole one (5a3) bottom surface
Offseted on the head of end face, the bottom surface of spacing blind hole two (5b3) and clamping screw two (7) with spacing blind hole two (5b3) bottom surface
The end face leaned on is plane.
6. the worm type of reduction gearing according to claim 4 or 5, it is characterised in that some contiguous blocks (5d) are circumferentially divided
The cloth and annular convex edge one (5a), annular convex edge two (5b) and contiguous block (5d) are integral type structure, the annular convex edge one
Above-mentioned through hole one (5a1) also is provided with (5a) with contiguous block (5d) junction, on the annular convex edge two (5b) and contiguous block
The junction of (5d) is also correspondingly provided with above-mentioned through hole (5b1), and the through hole (5b1) at this through the contiguous block (5d) with
Through hole one (5a1) connects.
7. the worm type of reduction gearing described in any one in claim 1-5, it is characterised in that the lock sleeve
(5) outer peripheral face is smooth surface, and the madial wall of the axis hole (1a) is smooth surface, and the lock sleeve (5) is slided and is located in
In the axis hole (1a) and outer peripheral face is abutted on axis hole (1a) madial wall.
8. the worm type of reduction gearing described in any one in claim 1-5, it is characterised in that the lock sleeve
(5) there is the recessed shoulder (5e) of annular, the recessed shoulder of annular (5e) is provided with internal thread, the adjusting set (4) on the internal perisporium of outer end
Outer end there is annular boss (4a), there is external screw thread on the annular boss (4a) and pass through internal thread and externally threaded cooperation
Be connected in the above-mentioned recessed shoulder of annular (5e), the Inner ends of the adjusting set (4) penetrate in the lock sleeve (5) and with lock sleeve (5)
The internal perisporium at Inner ends mutually reclines.
9. worm type of reduction gearing according to claim 8, it is characterised in that the internal perisporium at lock sleeve (5) the Inner ends
Periphery wall with adjusting set (4) Inner ends is smooth surface.
10. the worm type of reduction gearing described in any one in claim 1-5, it is characterised in that the adjusting set
(4) annular seal groove is offered on the periphery wall at Inner ends and the periphery wall at lock sleeve (5) Inner ends, in the annular seal groove
It is equipped with O-ring seal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981090.0A CN107504133B (en) | 2017-10-20 | 2017-10-20 | Worm gear reducer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710981090.0A CN107504133B (en) | 2017-10-20 | 2017-10-20 | Worm gear reducer |
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| CN107504133B CN107504133B (en) | 2024-01-02 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340331A (en) * | 2018-12-17 | 2019-02-15 | 浙江三凯机电有限公司 | A kind of coaxial speed-down device |
| CN109812546A (en) * | 2019-01-09 | 2019-05-28 | 银川威力传动技术股份有限公司 | A kind of backlash adjustment device |
| CN109882548A (en) * | 2019-04-18 | 2019-06-14 | 佛山市迪龙传动机械有限公司 | Gap of worm adjustment mechanism |
| CN109915373A (en) * | 2019-04-24 | 2019-06-21 | 随州亿丰泵业有限公司 | A kind of liquid-ring vacuum pump |
| CN113153979A (en) * | 2021-05-18 | 2021-07-23 | 成都理工大学 | Speed reducer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109340331A (en) * | 2018-12-17 | 2019-02-15 | 浙江三凯机电有限公司 | A kind of coaxial speed-down device |
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| CN113153979A (en) * | 2021-05-18 | 2021-07-23 | 成都理工大学 | Speed reducer |
| CN113153979B (en) * | 2021-05-18 | 2022-07-08 | 成都理工大学 | Speed reducer |
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