CN109877778A - Bushing dismounting tool - Google Patents
Bushing dismounting tool Download PDFInfo
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- CN109877778A CN109877778A CN201910326555.8A CN201910326555A CN109877778A CN 109877778 A CN109877778 A CN 109877778A CN 201910326555 A CN201910326555 A CN 201910326555A CN 109877778 A CN109877778 A CN 109877778A
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- dismounting
- bushing
- liner
- handle
- screw rod
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Abstract
The invention discloses a kind of bushing dismounting tools, including screw rod, set is installed with the first dismounting liner and the second dismounting liner for being located at workpiece two sides on the screw rod, and the first dismounting liner is for being resisted against bushing, and the second dismounting liner is for being resisted against workpiece；The screw rod is equipped with the first handle for being threadedly engaged with it and being used to that the first dismounting liner to be driven to be axially moveable, and the first handle is located at the first dismounting bushing backwards to the side of the second dismounting bushing；The screw rod is equipped with the second handle for being threadedly engaged and be used to limit the second dismounting liner with it, and the second handle is located at the second dismounting liner backwards to the side of the first dismounting liner；The rotation direction of matching thread between the screw rod and the first handle and second handle is identical；Dynamic friction coefficient between the first handle and the first dismounting liner is less than the confficient of static friction between bushing and the first dismounting liner.
Description
Technical field
The invention belongs to mechanical frock clamp arts, are specifically a kind of bushing dismounting tool.
Background technique
Revolute pair in mechanical mechanism usually uses bushing as sliding bearing, guarantees rotation flexibility.Specifically, outside bushing
It is round to be interference fitted with component matrix, relative motion, bushing inner hole and shaft clearance fit do not occur therebetween, occurs in work
It relatively rotates.With the increase for using the time, the relative rotation between bushing inner hole and shaft will necessarily cause bushing bore wear,
Rotation auxiliary air gap is caused to increase, so as to cause the reduction of mechanical equipment kinematic accuracy, dynamic loading increases, working performance decline.Therefore,
When the mechanism of mechanical equipment is after prolonged use, bushing that just must be worn-out to its is replaced, to ensure machinery
The work of equipment normal table.
Currently, in bushing replacement process in mechanical mechanism, it usually needs decompose each component in mechanism completely, tear open
After unloading, old bushing is removed from component in the way of press or percussion, and benefit in the same way loads onto new bushing.This
Kind bushing dismounts mode, can not achieve and replaces in place to bushing, not only cumbersome, working efficiency is low, and press is not
Portable belt is unfavorable for field operation, taps easy damaged bush end face, influences bushing installation quality.
The Chinese patent of Publication No. CN206732918U discloses a kind of bush dismounting device, including thread and spiral shell
Mother, thread left end are formed with screw thread, and right section is smooth surface cylindrical body, and there is convex shoulder in end, and thread segment installs nut, interlude installation
Support sleeve when removing bushing, places pawl, installs retaining ring at the convex shoulder of end on smooth surface cylindrical body；When bushing is installed, smooth surface cylinder
Large and small two guide sleeves are installed on body, retaining ring is installed at the convex shoulder of end.
Although the bush dismounting device can satisfy the dismounting requirement of bushing to a certain extent, it was dismounted in bushing
Cheng Zhong, nut are overcoming the assembly force between bushing and part, thus between nut and thread and nut and support
Biggish frictional force effect can be generated between set.Since the other end of thread only relies on retainer ring spacing, retaining ring is only played
The effect of axial limiting, the frictional resistance between thread is smaller, in this way, in nut and the biggish friction of thread
Under power effect, thread or as nut rotates together causes entire dismounting operation to fail.In addition, between pawl and bushing
Coefficient of friction and big guide sleeve and bushing to be installed between coefficient of friction be likely less than rubbing between nut and support sleeve
Coefficient is wiped, is caused in disassembly process, pawl can rotate relative to bushing, can occur relatively between big guide sleeve and bushing to be installed
Rotation, causes bush end face to be damaged.
Summary of the invention
In view of this, the dismounting of bushing can not only be met the purpose of the present invention is to provide a kind of bushing dismounting tool
It is required that and better reliability, can effectively prevent dismounting operation fail and avoid bushing from damaging.
In order to achieve the above objectives, the invention provides the following technical scheme:
A kind of bushing dismounting tool, including screw rod, set, which is installed with, on the screw rod is located at the first of workpiece two sides and tears open
Fitted lining pad and the second dismounting liner, the first dismounting liner is for being resisted against bushing, and the second dismounting liner is for supporting
It leans against on workpiece；
The screw rod is equipped with first for being threadedly engaged with it and being used to that the first dismounting liner to be driven to be axially moveable
Handle, the first handle are located at the first dismounting bushing backwards to the side of the second dismounting bushing；
The screw rod, which is equipped with, is threadedly engaged with it and be used to limit the second handle that second dismounting pads, and described the
Two handles are located at the second dismounting liner backwards to the side of the first dismounting liner；
The rotation direction of matching thread between the screw rod and the first handle and second handle is identical；
Dynamic friction coefficient between the first handle and the first dismounting liner is less than bushing and first dismounting
Confficient of static friction between liner.
Further, the screw rod includes major diameter section and path section, and the centre bore internal diameter of the second dismounting liner is less than institute
It states the outer diameter of major diameter section and is more than or equal to the outer diameter of the path section, and the second dismounting insert is mounted in the path section
On, the first dismounting insert is in the major diameter section；The second handle, which is threadedly engaged, to be mounted in the path section
And on the shaft shoulder that the second dismounting liner is pressed abd fixed between the major diameter section and path section.
Further, the middle part of the screw rod is equipped with collar, and the first dismounting liner and the second dismounting liner are located at
The centre bore internal diameter of the two sides of the collar, the second dismounting liner is less than the outer diameter of the collar, the second handle spiral shell
Line is fitted on the screw rod and the second dismounting liner is pressed abd fixed in the collar.
Further, the centre being sleeved on the screw rod is equipped between the first dismounting liner and the first handle
Part, synchronous axial movement between the middleware and the first handle, and the first handle can be relative to the middleware
It is rotated around the screw rod.
Further, the first handle is equipped with cylinder boss, the middleware towards a side end face of the middleware
A side end face towards the first handle is equipped with the circular groove being sleeved on the cylinder boss, the cylinder boss
Periphery wall is equipped with the annular groove that rounds, is correspondingly provided with pin with the annular groove on the side wall of the circular groove
Hole, the pin hole is interior to be equipped with the spacer pin extending into the annular groove.
Further, it is at least two that the pin hole annular, which is uniformly arranged,.
Further, the circular arc for being equipped with and rounding is respectively corresponded on the first handle and the opposite end face of the middleware
Connected in star, two circular grooves are coaxial and that the circle to round is constituted between two circular grooves is logical
Road, the circular channel is interior to be equipped with ball.
Further, the middleware is equipped with the card slot to round towards one end end face of the first dismounting liner,
One end end face of the first dismounting liner towards the middleware is equipped with the ring-type to round and with card slot cooperation
Boss is equipped between the card slot and the lateral surface of the annular boss and/or between medial surface the shackle passageway to round,
The elastic rubber ring for middleware described in axial limiting and the first dismounting liner is equipped in the shackle passageway.
Further, the first dismounting liner is equipped with internal diameter and is greater than the screw rod and dismounts liner institute towards described second
The first axis pressing sleeve that axial direction in side extends；The second dismounting liner is equipped with internal diameter and is greater than the screw rod and direction
The second axial pressing sleeve that the axial direction of side where the first dismounting liner extends；The first axis pressing sleeve and described second
The axial length of axial pressing sleeve is all larger than the axial length of bushing and workpiece；The first axis pressing sleeve is for being resisted against bushing
On, the described second axial pressing sleeve is for being resisted against workpiece.
Further, the first dismounting liner is equipped with internal diameter and is greater than the screw rod and dismounts liner institute towards described second
The third axial direction pressing sleeve that axial direction in side extends, the axial length of the third axial direction pressing sleeve are less than the axis of bushing and workpiece
To length；The internal diameter of the second dismounting liner is less than the internal diameter of workpiece, and the outer diameter of the second dismounting liner is greater than workpiece
Internal diameter；The third axial direction pressing sleeve is for being resisted against bushing, and the second dismounting liner is for being resisted against workpiece.
The beneficial effects of the present invention are:
Bushing dismounting tool of the invention, by screw rod be set be located at workpiece two sides first dismounting liner and
Second dismounting liner bears against the first dismounting liner and the second dismounting liner on workpiece and bushing when dismantling bushing,
First handle or second handle are rotated, axially does opposite fortune between driving the first dismounting liner and the second dismounting liner
It is dynamic, workpiece can be driven and bushing is detached from；
By the way that the rotation direction of the matching thread between screw rod and the first handle and second handle is identical, in use, can
Second handle is fixed with external device (ED), driving first handle is rotated relative to screw rod, if the friction between first handle and screw rod
When power is excessive to cause screw rod to rotate, it is threadedly engaged relationship using between second handle and screw rod, the first dismounting can also be driven to serve as a contrast
It is axially moved toward one another between pad and the second dismounting liner, reaches the technical purpose for removing bushing from workpiece,
It will not fail；Similarly, fixed first handle, rotation second handle also can reach same technical effect；
By the way that the dynamic friction coefficient between first handle and the first dismounting bushing is set smaller than bushing and the first dismounting
Confficient of static friction between bushing, fixed second handle position is motionless, when rotating first handle, not will drive the first dismounting bushing
It rotates relative to bushing, i.e., during whole dismounting, the first dismounting bushing remains static relative to bushing, not only
Load required when first handle and second handle rotation can be effectively reduced, keeps the dismounting of bushing lighter, and will not damage
Disassembly quality is improved in the end face of bushing；
Similarly, when assembling bushing, first handle or second handle driving the first dismounting liner and the can not only be rotated
It axially moves toward one another, and then bushing is assembled in workpiece, and can be avoided screw rod between two dismounting liners
Rotation failure, and it is able to maintain opposing stationary between the first dismounting bushing and bushing, reduction first handle and second handle rotation
The load of Shi Suoxu keeps the dismounting of bushing lighter, and will not damage the end face of bushing, improves assembling quality；
In summary, bushing dismounting tool of the invention can not only meet the dismounting requirement of bushing, and reliability is more
It is good, dismounting operation can be effectively prevent to fail and bushing is avoided to damage.
Detailed description of the invention
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, the present invention provides following attached drawing and carries out
Illustrate:
Fig. 1 is the structural schematic diagram of bushing dismounting tool embodiment 1 of the present invention；
Fig. 2 is the sectional axonometric drawing of the bushing dismounting tool of the present embodiment；
Fig. 3 is the structural schematic diagram of bushing dismounting tool embodiment 2 of the present invention.
Description of symbols:
1- screw rod；1a- major diameter section；1b- path section；2- workpiece；3- bushing；The dismounting liner of 4- first；4a- annular convex platform；
4b- first axis pressing sleeve；4c- third axial direction pressing sleeve；The dismounting liner of 5- second；5a- centre bore；The axial pressing sleeve of 5b- second；6-
One handle；6a- cylinder boss；6b- annular groove；6c- circular groove；7- second handle；8- middleware；8a- circular groove；
8b- circular groove；8c- card slot；9- spacer pin；10- ball；11- elastic rubber ring.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples, so that those skilled in the art can be with
It better understands the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
Embodiment 1
As shown in Figure 1, being the structural schematic diagram of bushing dismounting tool embodiment 1 of the present invention.The bushing of the present embodiment dismounts
Tool, including screw rod 1, set is installed with the first dismounting liner 4 and the second dismounting liner for being located at 2 two sides of workpiece on screw rod 1
5.The first dismounting liner 4 of the present embodiment is for being resisted against bushing 3, and the second dismounting liner 5 is for being resisted against workpiece 2.
Screw rod 1 is equipped with the first handle 6 for being threadedly engaged and being used for drive the first dismounting liner 4 to be axially moveable with it,
First handle 6 is located at the first dismounting bushing 4 backwards to the side of the second dismounting bushing 5.Similarly, screw rod 1 is equipped with and matches with its screw thread
Merge the second handle 7 for limiting the second dismounting liner 5, second handle 7 is located at the second dismounting liner 5 backwards to the first dismounting lining
The side of pad 4.And the rotation direction of the matching thread between screw rod 1 and first handle 6 and second handle 7 is identical, i.e., when screw rod 1 occurs
When rotation, the first dismounting bushing 4 of driving or the second dismounting also can reach using the first handle 6 or second handle 7 of fixed position
The technical purpose that bushing 5 moves toward one another.
Specifically, the dynamic friction coefficient between first handle 6 and the first dismounting liner 4 is less than bushing and the first dismounting pads
Confficient of static friction between 4.The first dismounting liner 4 in disassembly process can be effectively avoided to relatively rotate relative to bushing,
Reduce load required when first handle 6 and the rotation of second handle 7, keeps the dismounting of bushing 3 lighter, and bushing will not be damaged
Dismounting quality is improved in 3 end face.
Further, the screw rod 1 of the present embodiment includes major diameter section 1a and path section 1b, the centre bore 5a of the second dismounting liner 5
Outer diameter of the internal diameter less than major diameter section 1a and the outer diameter for being more than or equal to path section 1b, and the second dismounting liner 5 is sleeved on path section 1b
On, the first dismounting liner 4 is sleeved on major diameter section 1a；Second handle 7, which is threadedly engaged, to be mounted on path section 1b and tears open second
Fitted lining pad 5 is pressed abd fixed on the shaft shoulder between major diameter section 1a and path section 1b, is played and is fixed the skill that the second dismounting pads 5 positions
Art purpose.It is of course also possible to collar is set at the middle part of screw rod 1, the first dismounting liner 4 and the second 5 points of dismounting liner at this time
Not Wei Yu collar two sides, the centre bore 5a internal diameter of the second dismounting liner 5 is less than the outer diameter of collar, and second handle 7 is threadedly engaged
It is mounted on screw rod 1 and the second dismounting liner 5 is pressed abd fixed in collar, can also realize that fixing the second dismounting pads 5 positions
Technical purpose.
Further, the middleware 8 being sleeved on screw rod 1, middleware 8 are equipped between the first dismounting liner 4 and first handle 6
The synchronous axial movement between first handle 6, and first handle 6 can be rotated relative to middleware 8 around screw rod 1.
Specifically, the present embodiment is realized using following scheme synchronous can both move axially between middleware 8 and first handle 6
Can relatively rotate again: first handle 6 is equipped with cylinder boss 6a towards a side end face of middleware 8, and middleware 8 is towards first-hand
One side end face of handle 6 is equipped with the circular groove 8a being sleeved on cylinder boss 6a, and the periphery wall of cylinder boss 6a is equipped with ring
Around one week annular groove 6b, pin hole is correspondingly provided on the side wall of circular groove 8a with annular groove 6b, is equipped with and protrudes into pin hole
Spacer pin 9 in annular groove.Preferably, it is at least two that pin hole annular, which is uniformly arranged, and the pin hole annular of the present embodiment is
Cloth is set as 4.It using annular groove 6b resigning spacer pin, rotate first handle 6 can relative to middleware 8, while in ring
Under the effect of the axial limiting of connected in star 6b and spacer pin 9, make first handle axial movement synchronous with middleware 8.
Specifically, in order to reduce the coefficient of friction between first handle and middleware 8, the present embodiment first handle 6 with
Circular groove 6c, 8b, two circular grooves 6c, 8b that setting is rounded are respectively corresponded on the opposite end face of middleware 8
The circular channel to round is constituted coaxially and between two circular grooves 6c, 8b, is equipped with ball 10 in circular channel, i.e.,
End face bearing arrangement is constituted between first handle 5 and middleware 8, is less than planar friction using the coefficient of friction of rolling friction
The principle of coefficient of friction keeps the coefficient of friction between first handle 5 and middleware 8 and first handle 5 and the first dismounting liner 4 small
Coefficient of friction between the first dismounting liner 4 and bushing 3.
Further, the middleware 8 of the present embodiment is equipped with the card to round towards one end end face of the first dismounting liner 4
Slot 8c, first 4 one end end faces towards middleware 8 of dismounting liner are equipped with the annular boss to round and with card slot 8c cooperation
4a, is equipped between card slot 8c and the lateral surface of annular boss 4a and/or between medial surface the shackle passageway to round, and clamping is logical
The elastic rubber ring 11 for axial limiting middleware 8 and the first dismounting liner 4 is equipped in road.The shackle passageway of the present embodiment
Section is circle, and it is circular elastic rubber ring 11 that installation, which is equipped with section, in shackle passageway, and certainly, the section of shackle passageway may be used also
Think rectangular etc., is not repeated.The card slot 8a of the present embodiment is the rectangular channel that section is rectangle, correspondingly, annular convex platform 4a
Section is also in the rectangle with card slot 8a cooperation.By setting shackle passageway and elastic rubber ring 11, it can both realize that the first dismounting served as a contrast
Axially position between pad 4 and middleware 8, and the first dismounting liner 4 easily can be assembled to middleware 8 under external force
Above or from middleware 8 remove.
Further, the first dismounting liner 4 of the present embodiment is equipped with internal diameter greater than screw rod 1 simultaneously towards the second dismounting liner 5
The first axis pressing sleeve 4b that the axial direction of place side extends；Second dismounting liner 5 is equipped with internal diameter and is greater than screw rod 1 and towards the
The second axial pressing sleeve 5b that the axial direction of one 4 place sides of dismounting liner extends；The axial pressing sleeve of first axis pressing sleeve 4b and second
The axial length of 5b is all larger than the axial length of bushing 3 and workpiece 2；First axis pressing sleeve 4b is for being resisted against bushing 3, and second
Axial pressing sleeve 5b is for being resisted against workpiece 2 or first axis pressing sleeve 4b for being resisted against workpiece 2, the second axial pressing sleeve 5b
For being resisted against bushing 3.The first axis pressing sleeve 4b of the present embodiment is used for being resisted against bushing 3, the second axial direction pressing sleeve 5b
In being resisted against on workpiece 2.In this way, the lining that bushing 3 is removed from workpiece 2 completely, and removed using first axis pressing sleeve 4b
Set 3 can enter directly into the second axial pressing sleeve 5b, will not generate interference, i.e. the bushing dismounting tool of the present embodiment is more suitable
In bushing 3 is removed from workpiece 2.
The bushing dismounting tool of the present embodiment is located at the first dismounting liner of workpiece two sides by being set on screw rod
The first dismounting liner and the second dismounting liner are born against in workpiece and bushing when dismantling bushing with the second dismounting liner
On, first handle or second handle are rotated, axially does phase between driving the first dismounting liner and the second dismounting liner
To movement, workpiece can be driven and bushing is detached from；
By the way that the rotation direction of the matching thread between screw rod and the first handle and second handle is identical, in use, can
Second handle is fixed with external device (ED), driving first handle is rotated relative to screw rod, if the friction between first handle and screw rod
When power is excessive to cause screw rod to rotate, it is threadedly engaged relationship using between second handle and screw rod, the first dismounting can also be driven to serve as a contrast
It is axially moved toward one another between pad and the second dismounting liner, reaches the technical purpose for removing bushing from workpiece,
It will not fail；Similarly, fixed first handle, rotation second handle also can reach same technical effect；
By the way that the dynamic friction coefficient between first handle and the first dismounting bushing is set smaller than bushing and the first dismounting
Confficient of static friction between bushing, fixed second handle position is motionless, when rotating first handle, not will drive the first dismounting bushing
It rotates relative to bushing, i.e., during whole dismounting, the first dismounting bushing remains static relative to bushing, not only
Load required when first handle and second handle rotation can be effectively reduced, keeps the dismounting of bushing lighter, and will not damage
Disassembly quality is improved in the end face of bushing
In summary, the bushing dismounting tool of the present embodiment can not only meet the dismounting requirement of bushing, and reliability
More preferably, dismounting operation can be effectively prevent to fail and bushing is avoided to damage.
Embodiment 2
As shown in figure 3, being the structural schematic diagram of bushing dismounting tool embodiment 2 of the present invention.The bushing of the present embodiment dismounts
Tool, including screw rod 1, set is installed with the first dismounting liner 4 and the second dismounting liner for being located at 2 two sides of workpiece on screw rod 1
5.The first dismounting liner 4 of the present embodiment is for being resisted against bushing 3, and the second dismounting liner 5 is for being resisted against workpiece 2.
Screw rod 1 is equipped with the first handle 6 for being threadedly engaged and being used for drive the first dismounting liner 4 to be axially moveable with it,
First handle 6 is located at the first dismounting bushing 4 backwards to the side of the second dismounting bushing 5.Similarly, screw rod 1 is equipped with and matches with its screw thread
Merge the second handle 7 for limiting the second dismounting liner 5, second handle 7 is located at the second dismounting liner 5 backwards to the first dismounting lining
The side of pad 4.And the rotation direction of the matching thread between screw rod 1 and first handle 6 and second handle 7 is identical, i.e., when screw rod 1 occurs
When rotation, the first dismounting bushing 4 of driving or the second dismounting also can reach using the first handle 6 or second handle 7 of fixed position
The technical purpose that bushing 5 moves toward one another.
Specifically, the dynamic friction coefficient between first handle 6 and the first dismounting liner 4 is less than bushing and the first dismounting pads
Confficient of static friction between 4.The first dismounting liner 4 in disassembly process can be effectively avoided to relatively rotate relative to bushing,
Reduce load required when first handle 6 and the rotation of second handle 7, keeps the dismounting of bushing 3 lighter, and bushing will not be damaged
Dismounting quality is improved in 3 end face.
Further, the first dismounting liner 4 is equipped with internal diameter greater than screw rod 1 simultaneously towards the axis of the second 5 place sides of dismounting liner
The axial length of the third axial direction pressing sleeve 4c extended to direction, third axial direction pressing sleeve 4c are less than bushing 3 and the axial direction of workpiece 2 is long
Degree；The internal diameter of second dismounting liner 5 is less than the internal diameter of workpiece 2, and the outer diameter of the second dismounting liner 5 is greater than the internal diameter of workpiece 2；Third
Axial pressing sleeve 4c is for being resisted against bushing 3, and the second dismounting liner 5 is for being resisted against workpiece 2, in this way, in assembly bushing 3
When, bushing 3 will not be expressed into the second dismounting from workpiece 2 and pad 5 side because transition is assembled, and actually used
When, the axial length of third axial direction pressing sleeve 4c can also be set to the deep equality that bushing 3 is pressed into workpiece 2, assembly precision
More preferably.
The other structures of the present embodiment are same as Example 1, no longer tire out one by one and state.
The bushing dismounting tool of the present embodiment is located at the first dismounting liner of workpiece two sides by being set on screw rod
The first dismounting liner and the second dismounting liner are born against in workpiece and bushing when dismantling bushing with the second dismounting liner
On, first handle or second handle are rotated, axially does phase between driving the first dismounting liner and the second dismounting liner
To movement, it can be driven and bushing is assembled on workpiece；
By the way that the rotation direction of the matching thread between screw rod and the first handle and second handle is identical, in use, can
Second handle is fixed with external device (ED), driving first handle is rotated relative to screw rod, if the friction between first handle and screw rod
When power is excessive to cause screw rod to rotate, it is threadedly engaged relationship using between second handle and screw rod, the first dismounting can also be driven to serve as a contrast
It is axially moved toward one another between pad and the second dismounting liner, reaches the technical purpose being assembled to bushing on workpiece,
It will not fail；Similarly, fixed first handle, rotation second handle also can reach same technical effect；
By the way that the dynamic friction coefficient between first handle and the first dismounting bushing is set smaller than bushing and the first dismounting
Confficient of static friction between bushing, fixed second handle position is motionless, when rotating first handle, not will drive the first dismounting bushing
It rotates relative to bushing, i.e., during whole dismounting, the first dismounting bushing remains static relative to bushing, not only
Load required when first handle and second handle rotation can be effectively reduced, keeps the dismounting of bushing lighter, and will not damage
Disassembly quality is improved in the end face of bushing
In summary, the bushing dismounting tool of the present embodiment can not only meet the dismounting requirement of bushing, and reliability
More preferably, dismounting operation can be effectively prevent to fail and bushing is avoided to damage.
Embodiment described above is only to absolutely prove preferred embodiment that is of the invention and being lifted, protection model of the invention
It encloses without being limited thereto.Those skilled in the art's made equivalent substitute or transformation on the basis of the present invention, in the present invention
Protection scope within.Protection scope of the present invention is subject to claims.
Claims (10)
1. a kind of bushing dismounting tool, it is characterised in that: including screw rod (1), on the screw rod (1), set, which is installed with, is located at work
The first dismounting liner (4) and the second dismounting liner (5) of part (2) two sides, the first dismounting liner (4) is for being resisted against bushing
(3) on, the second dismounting liner (5) is for being resisted against workpiece (2)；
The screw rod (1), which is equipped with, to be threadedly engaged with it and be used to driving that first dismounting to pad that (4) be axially moveable the
One handle (6), the first handle (6) are located at first dismounting bushing (4) backwards to the one of second dismounting bushing (5)
Side；
The screw rod (1) is equipped with the second handle (7) for being threadedly engaged and be used to limit the second dismounting liner (5) with it,
The second handle (7) is located at the second dismounting liner (5) backwards to the side of the first dismounting liner (4)；
The screw rod (1) is identical as the rotation direction of matching thread between the first handle (6) and second handle (7)；
Dynamic friction coefficient between the first handle (6) and the first dismounting liner (4) is less than bushing (3) and described first
Confficient of static friction between dismounting liner (4).
2. bushing dismounting tool according to claim 1, it is characterised in that: the screw rod (1) include major diameter section (1a) and
Centre bore (5a) internal diameter of path section (1b), the second dismounting liner (5) is less than the outer diameter of the major diameter section (1a) and is greater than
Equal to the outer diameter of the path section (1b), and the second dismounting liner (5) is sleeved on the path section (1b), and described first
Dismounting liner (4) is sleeved on the major diameter section (1a)；The second handle (7), which is threadedly engaged, is mounted on the path section (1b)
It goes up and the second dismounting liner (5) is pressed abd fixed on the shaft shoulder between the major diameter section (1a) and path section (1b).
3. bushing dismounting tool according to claim 1, it is characterised in that: the middle part of the screw rod (1) is equipped with collar, institute
It states the first dismounting liner (4) and the second dismounting liner (5) is located at the two sides of the collar, the second dismounting liner (5)
Centre bore (5a) internal diameter be less than the collar outer diameter, the second handle (7), which is threadedly engaged, to be mounted on the screw rod (1)
And the second dismounting liner (5) is pressed abd fixed in the collar.
4. bushing dismounting tool according to claim 1, it is characterised in that: the first dismounting liner (4) and described the
The middleware (8) being sleeved on the screw rod (1), the middleware (8) and the first handle are equipped between one handle (6)
(6) synchronous axial movement between, and the first handle (6) can be rotated relative to the middleware (8) around the screw rod (1).
5. bushing dismounting tool according to claim 4, it is characterised in that: the first handle (6) is towards the centre
One side end face of part (8) is equipped with cylinder boss (6a), a side end face of the middleware (8) towards the first handle (6)
It is equipped with the circular groove (8a) being sleeved on the cylinder boss (6a), the periphery wall of the cylinder boss (6a) is equipped with ring
Around one week annular groove (6b), it is correspondingly provided with pin hole with the annular groove (6b) on the side wall of the circular groove (8a),
The spacer pin (9) extending into the annular groove is equipped in the pin hole.
6. bushing dismounting tool according to claim 5, it is characterised in that: it is at least two that the pin hole annular, which is uniformly arranged,
It is a.
7. bushing dismounting tool according to claim 4, it is characterised in that: the first handle (6) and the middleware
(8) it is respectively corresponded on opposite end face and is equipped with the circular groove (6c, 8b) that rounds, two circular grooves (6c,
It is 8b) coaxial and the circular channel to round is constituted between two circular grooves (6c, 8b), in the circular channel
Equipped with ball (10).
8. bushing dismounting tool according to claim 4, it is characterised in that: the middleware (8) is torn open towards described first
One end end face of fitted lining pad (4) is equipped with the card slot (8c) to round, and the first dismounting liner (4) is towards the middleware
(8) one end end face be equipped with round and with the card slot (8c) cooperation annular boss (4a), the card slot (8c) with
It is equipped between the lateral surface of the annular boss (4a) and/or between medial surface the shackle passageway to round, the clamping is logical
The elastic rubber ring (11) for middleware (8) described in axial limiting and the first dismounting liner (4) is equipped in road.
9. bushing dismounting tool according to claim 1-8, it is characterised in that: the first dismounting liner (4)
It is equipped with the axial direction of side where internal diameter is greater than the screw rod (1) and pads (5) towards second dismounting extends first
Axial pressing sleeve (4b)；The second dismounting liner (5) is equipped with internal diameter and is greater than the screw rod (1) and dismounts lining towards described first
The second axial pressing sleeve (5b) that the axial direction of side where padding (4) extends；The first axis pressing sleeve (4b) and second axis
The axial length of bushing (3) and workpiece (2) is all larger than to the axial length of pressing sleeve (5b)；The first axis pressing sleeve (4b) is used for
It is resisted against on bushing (3), the described second axial pressing sleeve (5b) is for being resisted against workpiece (2).
10. bushing dismounting tool according to claim 1-8, it is characterised in that: the first dismounting liner (4)
It is equipped with the third that internal diameter is greater than the screw rod (1) and the axial direction towards side where the second dismounting liner (5) extends
Axial pressing sleeve (4c), the axial length of the third axial direction pressing sleeve (4c) are less than the axial length of bushing (3) and workpiece (2)；Institute
The internal diameter for stating the second dismounting liner (5) is less than the internal diameter of workpiece (2), and the outer diameter of the second dismounting liner (5) is greater than workpiece (2)
Internal diameter；The third axial direction pressing sleeve (4c) is for being resisted against bushing (3), and the second dismounting liner (5) is for being resisted against
On workpiece (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326555.8A CN109877778A (en) | 2019-04-23 | 2019-04-23 | Bushing dismounting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910326555.8A CN109877778A (en) | 2019-04-23 | 2019-04-23 | Bushing dismounting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109877778A true CN109877778A (en) | 2019-06-14 |
Family
ID=66938114
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910326555.8A Pending CN109877778A (en) | 2019-04-23 | 2019-04-23 | Bushing dismounting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109877778A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425756A (en) * | 2022-02-25 | 2022-05-03 | 万永超 | Bush separator for machining |
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|---|---|---|---|---|
| CN1785603A (en) * | 2005-12-12 | 2006-06-14 | 河北师范大学 | Mounding and removing tool of cylinder jacker |
| WO2011012552A1 (en) * | 2009-07-28 | 2011-02-03 | Messier-Dowty Sa | Tool for removing annular elements tightly mounted in holes, in particular blind holes, of parts |
| CN202862137U (en) * | 2012-10-02 | 2013-04-10 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Crank pin lining extractor |
| CN106863217A (en) * | 2017-03-22 | 2017-06-20 | 安徽江淮汽车集团股份有限公司 | Geared rotor system extracting tool |
| CN206317010U (en) * | 2016-12-11 | 2017-07-11 | 宜兴市张渚中等专业学校 | A kind of cylinder sleeve dismantling device |
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2019
- 2019-04-23 CN CN201910326555.8A patent/CN109877778A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1785603A (en) * | 2005-12-12 | 2006-06-14 | 河北师范大学 | Mounding and removing tool of cylinder jacker |
| WO2011012552A1 (en) * | 2009-07-28 | 2011-02-03 | Messier-Dowty Sa | Tool for removing annular elements tightly mounted in holes, in particular blind holes, of parts |
| CN202862137U (en) * | 2012-10-02 | 2013-04-10 | 中国石油化工股份有限公司胜利油田分公司孤岛采油厂 | Crank pin lining extractor |
| CN206317010U (en) * | 2016-12-11 | 2017-07-11 | 宜兴市张渚中等专业学校 | A kind of cylinder sleeve dismantling device |
| CN106863217A (en) * | 2017-03-22 | 2017-06-20 | 安徽江淮汽车集团股份有限公司 | Geared rotor system extracting tool |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114425756A (en) * | 2022-02-25 | 2022-05-03 | 万永超 | Bush separator for machining |
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Application publication date: 20190614 |
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