CN206123555U - Bush press fitting tool - Google Patents
Bush press fitting tool Download PDFInfo
- Publication number
- CN206123555U CN206123555U CN201621255231.8U CN201621255231U CN206123555U CN 206123555 U CN206123555 U CN 206123555U CN 201621255231 U CN201621255231 U CN 201621255231U CN 206123555 U CN206123555 U CN 206123555U
- Authority
- CN
- China
- Prior art keywords
- oilhole
- gag lever
- lever post
- bushing
- pressure head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Sliding-Contact Bearings (AREA)
Abstract
The utility model discloses a bush press fitting tool. This bush press fitting tool includes: suction head assembly includes: oilhole gag lever post, pressure head, centering sleeve, eccentric shaft, handle and stop screw, the oilhole gag lever post with gag lever post hole clearance fit, the shifting block groove has been seted up to the week side of this oilhole gag lever post, centering sleeve has a hole, its side have in week radial with the spacing screw of stop screw complex, the eccentric shaft includes: main pivot, constant head tank, poking shaft and backstop flange, main pivot and centering sleeve's hole clearance fit, poking shaft sets up the one end of main pivot, and with main pivot is eccentric, poking shaft with the position of bush oilhole through the rotatory oilhole gag lever post up -and -down motion that promotes of handle, is fixed a position to the shifting block slot combination of oilhole gag lever post, take over, and spacing end. This bush press fitting tool advances line location through the handle promotion oilhole gag lever post of rotatory pressure head front end, and the location clearance is little, and the location is accurate.
Description
Technical field
This utility model is related to electromotor bushing press-mounting field, more particularly to a kind of bushing press-mounting instrument.
Background technology
Electromotor is the dynamic power machine that heat energy is converted to mechanical movement, and its valve actuating mechanism is the machine for controlling electromotor breathing
Structure, wherein camshaft directly control the opening and closing of cylinder block valve.For non-Removal of OHC System, supporting cam wheel axle rotary motion
Camshaft hole is typically designed in cylinder block, its logical lubricating oil of inwall design oil duct, provides lubricating oil in camshaft motion.It is convex
Axle hole is the skeleton of supporting cam wheel motion, and before camshaft is installed, camshaft hole needs to press-fit bushing.Cam shaft bush is needed
To be pressed in camshaft hole by depression bar, and require the oil hole in the oilhole alignment cam axis hole above bushing.Therefore depression bar
It is that camshaft hole is crucial to the positioning precision of bushing oil hole, be directly connected to bushing press-fits quality.
The bushing press-mounting instrument of prior art is as shown in Figures 1 to 5：One end interference fit axle connection of pressure head and adapter 2,
The other end of adapter 2 is connected with 3 interference fit axle of spacing termination.As shown in figure 3, screw 22 tightens pressure respectively through adapter 2
Head and spacing termination 3.Pressure head and spacing termination 3 are subject to the restriction of screw 22 rotate, it is ensured that both relative positions.Such as Fig. 4,
Pressure head body 11 has the spring eye for placing spring 15, and the spring eye upper end of pressing plate 13 zooms in, and is only capable of accommodating steel ball 12 by part
Spheroid.Pressure head body 11 and pressing plate 13 are fastened by screw 14.Steel ball 12 is subject to the power of spring 15, and its some spheroid protrudes
Outside pressure head circumference.As shown in Figure 5, Figure 6, during work, bushing 5 is inserted in pressure head, and during press-in, steel ball 12 is acted on by bushing inwall,
Compression spring 15, steel ball 12 are sunk.When the oilhole 511 of positioning to bushing 5, steel ball 12 is upspring again by spring force, stationary bushing
The position of oilhole.
Prior art has the disadvantage that：
1st, the steel ball 12 of existing positioning oilhole all the time under the effect of spring 15 protrudes pressure head, is inserted in pressure head in bushing
When, need compression spring, steel ball to be subject to very big spring force.During press-in, steel ball rolling bushing endoporus leaves one
Impression, can so cause bushing endoporus to damage.If exempting from processing after bushing press-in, the impression can be made to cam axle and lubrication
Into hidden danger.
2nd, there is very big gap between steel ball and bushing oil hole, because being steel ball sphere, the rotation of bushing, enough
Under active force, meeting recompression steel ball so that steel ball departs from bushing oil hole, causes bushing to rotate, so as to cause bushing oil hole
Cannot be aligned with the oil hole in bush hole.The ratio of precision of positioning oilhole is relatively low, the oil duct being easily caused in bushing oil hole and hole
Hole is not to just.
The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and
It is not construed as recognizing or implying in any form that the information structure is existing well known to persons skilled in the art
Technology.
Utility model content
The purpose of this utility model is to provide a kind of simple and reasonable bushing press-mounting instrument, the bushing press-mounting instrument
Oilhole gag lever post is promoted to be positioned by the handle of rotary press head front end, position gap is little, accurate positioning.In addition, oilhole limit
The face of position bar positioning bushing oil hole is the face of cylinder, and any Forced rotation all limited by oilhole gag lever post, positioning reliability.Also
Have, being retracted in pressure head by rotating handles control oilhole gag lever post carries out being inserted in for bushing, can reduce bushing damage.
For achieving the above object, this utility model provides a kind of bushing press-mounting instrument, and the bushing press-mounting instrument includes：Pressure
Head assembly, which includes：Oilhole gag lever post, its week side of boss offer shifting block groove；Pressure head, bushing to be press-fited are arranged on the outer of the pressure head
On side face, the outer peripheral face of the pressure head is provided with the perforation of oilhole gag lever post；Eccentric shaft, the eccentric shaft include：Main shaft and be located at should
Main shaft one end the pulling axis eccentric with which, what the main shaft can be rotated is located in the pressure head, the pulling axis and institute
The shifting block groove for stating oilhole gag lever post coordinates；And handle, which is arranged on the other end of the eccentric shaft, described inclined for driving
Heart axle rotates, and then promotes the oilhole gag lever post to move up and down by the eccentric rotary of the pulling axis, positions and waits to press-fit lining
The position of the bushing oil hole of set；Adapter, its one end are connected with the pressure head component；And spacing termination, its one end connect with described
The other end connection of pipe, for connecting hydraulic test.
Preferably, in above-mentioned technical proposal, pressure head component also includes：Centring sleeve and stop screw, the centring sleeve have
Endoporus, one end that its side week has the spacing screw coordinated with the stop screw of radial direction, the centring sleeve prolong with radial direction
The locating flange stretched, is circumferentially uniformly offered multiple bolts hole, is fastened on the pressure head by screw on the locating flange.
Preferably, in above-mentioned technical proposal, the perisporium of centring sleeve offers axial steel ball spacing hole, in the steel ball spacing hole
Portion is laid with plug screw, spring, spring pad and steel ball, and fluted, use is laid at the radial direction two ends of the one side of the centring sleeve respectively
In cooperatively forming position response mechanism with the steel ball.
Preferably, in above-mentioned technical proposal, the front end of pressure head is provided with fairlead mounting groove, and is provided with fairlead.
Compared with prior art, this utility model has the advantages that：
1st, accurate positioning.Oilhole gag lever post can be promoted by the handle of rotary press head front end, because its termination is cylinder,
Size corresponding with oilhole can be processed into.Positioned using steel ball relative to prior art, its position gap is little, accurate positioning.
2nd, position reliable.Because using certain spring force, the bellmouth of fixed eccentric shaft, eccentric shaft to reach using steel ball
During precalculated position, it is restricted from rotating.In addition, the face of oilhole gag lever post positioning bushing oil hole is the face of cylinder, bushing is in press-in
During bush hole, any Forced rotation is all limited by oilhole gag lever post.And prior art, because being steel ball sphere, bushing
Rotation, under enough active forces, can recompression steel ball so that steel ball departs from bushing oil hole, causes bushing to rotate, from
And cause bushing oil hole be aligned with the oil hole in bush hole.
3rd, reduce bushing to damage.Before bushing is inserted in pressure head component, by rotating handles, oilhole gag lever post can be complete
It is retracted in pressure head, after bushing reaches precalculated position, the rotation of oilhole gag lever post is improved.Prior art, positions the steel of oilhole
Pearl under the effect of spring, protrudes pressure head all the time.When being inserted in bushing, it is necessary to first compression spring.The process of oilhole is not reached
In, steel ball can extrude one impression in bush inside.Bushing endoporus can be so caused to damage.In addition, the application motion also sets up
Fairlead, protection bushing front end allows bushing with accurate attitude press-in bush hole.
Description of the drawings
Fig. 1 is the dimensional structure diagram of existing bushing press-mounting instrument.
Fig. 2 is the main structure diagram of existing bushing press-mounting instrument.
A-A direction cross section structure diagrams of the Fig. 3 for Fig. 2.
Fig. 4 is the use state structural representation of existing bushing press-mounting instrument.
Fig. 5 is existing bush structure schematic diagram to be press-fited.
Fig. 6 is the structural representation of bushing press-mounting instrument of the present utility model.
Fig. 7 is the pressure head component structural representation of bushing press-mounting instrument of the present utility model.
Fig. 8 is the centring sleeve structural representation of bushing press-mounting instrument of the present utility model.
B-B direction cross section structure diagrams of the Fig. 9 for Fig. 8.
Figure 10 is the eccentric shaft dimensional structure diagram of bushing press-mounting instrument of the present utility model.
Figure 11 is the eccentric shaft main structure diagram of bushing press-mounting instrument of the present utility model.
C-C direction cross section structure diagrams of the Figure 12 for Figure 11.
Figure 13 is the use state structural representation of bushing press-mounting instrument of the present utility model.
Specific embodiment
Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality
New protection domain is not limited by specific embodiment.
Explicitly indicate that unless otherwise other, otherwise in entire disclosure and claims, term " including " or its change
Change such as "comprising" or " including " etc. and will be understood to comprise stated element or ingredient, and do not exclude other units
Part or other ingredients.
As shown in Figure 6 and Figure 7, the concrete structure bag according to the bushing press-mounting instrument of this utility model specific embodiment
Include：Pressure head component 6, adapter 7 and spacing termination 8, wherein, pressure head component 6 and adapter 7 are connected by the interference of axle, spacing termination 8
Connected by the interference of axle with adapter 7, and fixed using screw 10, do not allow which to rotate.The centring sleeve 67 of pressure head component 6, partially
Heart axle 69 and handle 610 constitute a cam mechanism, are moved up and down by the rotation forces oilhole gag lever post 61 of handle 610, come
The position of positioning bushing oil hole.I.e. before bushing 5 is inserted in pressure head component, by rotating handles 610, oilhole gag lever post 61 can be with
It is retracted in pressure head 62 completely, after bushing reaches precalculated position, the rotation of oilhole gag lever post is improved.It is provided with centring sleeve 67
Steel ball spacing hole 6704, and with the steel ball 66, spring pad 65, spring 64 being laid in the steel ball spacing hole 6704, plug screw 63 and
Eccentric shaft 69 constitutes a position response mechanism, and during eccentric shaft 69 rotates, steel ball 66 under spring force, is arrived
Up to target location, steel ball is partially into the tapered hole 6905 of eccentric shaft 69, sends sound and produces resistance, and then sends rotation
Reach the signal in precalculated position.
Specifically, as shown in fig. 7, pressure head component 6 includes：Oilhole gag lever post 61, pressure head 62, plug screw 63, spring 64, bullet
Spring pad 65, steel ball 66, centring sleeve 67, eccentric shaft 69, handle 610 and stop screw 612.Wherein, pressure head 62 has the face of cylinder
6201st, spacing rod aperture 6202 and step surface 6203, the face of cylinder 6201 are used for the inner cylinder face for positioning bushing 5, and step surface 6203 is used
In the end face of positioning bushing 5.The front end of pressure head 62 is provided with fairlead mounting groove 6204, for coordinating with fairlead 9, is conducive to suitable
Profit is pressed into bushing in bush hole, reduces bushing and biases damage discontinuity when starting to press against.
Oilhole gag lever post 61 is cylindric, coordinates assembling, oilhole gag lever post 61 with 6202 gap of spacing rod aperture of pressure head 62
Lower end have positioning termination, position termination 6102 be used for position bushing oil hole 501 face be the face of cylinder, bushing press-in bushing
Kong Shi, any Forced rotation are limited by oilhole gag lever post.The week side of boss of oilhole gag lever post 61 offers shifting block groove 6101,
The shifting block groove 6101 of the pulling axis incision oilhole gag lever post 61 of eccentric shaft 69, to adjust two limit positions up and down of oilhole gag lever post 61
Put.
As shown in Figure 8 and Figure 9, centring sleeve 67 is tubulose, with endoporus 6701, for wearing the main shaft of eccentric shaft 69
6901.There is the spacing screw 6702 of radial direction, stop screw 612 is tightened in the spacing screw 6702 the side week of centring sleeve 67,
So as to limit position of the eccentric shaft 69 in centring sleeve 67.One end of centring sleeve 67 has the locating flange for radially extending, positioning
Multiple bolts hole are circumferentially uniformly offered on flange, is fastened on pressure head 62 by screw 68.
The perisporium of centring sleeve 67 offers axial steel ball spacing hole 6704.Plug screw 63, spring 64, spring pad 65, steel ball 66
It is assembled in the steel ball spacing hole 6704 of centring sleeve 67 successively, the termination of the steel ball spacing hole is tapered opening, after steel ball press-in,
Outside tight some protrusion centring sleeve.
As shown in Figure 10 to Figure 12, eccentric shaft 69 includes：Main shaft 6901, locating slot 6902, pulling axis 6903, stop lug
6906th, boss 6904 and groove 6905, wherein, main shaft 6901 is coordinated with 6701 gap of endoporus of centring sleeve 67, it is possible to
Rotate in endoporus 6701.Locating slot 6902 is opened up along the circumference of main shaft 6901, and stop screw 612 is tightened in the limit of centring sleeve 67
In the screw 6702 of position, its termination 6121 is stuck in the locating slot 6902 of eccentric shaft 69, so as to limit eccentric shaft 69 in centring sleeve 67
Interior position.Pulling axis 6903 is arranged on one end of main shaft 6901, and eccentric with main shaft 6901.Stop lug 6906 is arranged on
The other end of main shaft 6901, groove 6905 are the circular groove at two cone bottoms, are laid in 6906 one side of stop lug respectively
Radial direction two ends, for coordinating with steel ball 66.Due to steel ball 66 under spring force, when steel ball 66 proceeds to the groove 6905
When oilhole gag lever post 61 be located at upper and lower two extreme positions, a part for steel ball springs into 6905 forming position response means of groove,
Send auditory tone cueses and have arrived at extreme position.Simultaneously by the effect of spring force, and the conical lower portion of groove, temporarily lock
The position (needing certain power just be rotated away from extreme position) of oilhole gag lever post.Boss 6904 is laid in stop lug 6906
Another side.
The inner fluting of handle 610, coordinates for the boss 6904 with eccentric shaft 69, and is tightened in bias with screw 611
On axle 69.Oilhole gag lever post 61 coordinates assembling, the pulling axis 6903 of eccentric shaft 69 to cut with 6202 gap of spacing rod aperture of pressure head 62
The shifting block groove 6101 of oilhole gag lever post 61.Handle 610 drives eccentric shaft 69 to rotate, as shifting block 6903 is relative to the master of eccentric shaft
Rotating shaft is eccentric, so as to drive oilhole gag lever post 61 to move up and down.Oilhole limit can be promoted by the handle 610 of rotary press head front end
Position bar 61, because its termination is cylinder, can be processed into size corresponding with oilhole.It is fixed using steel ball relative to prior art
Position, its position gap are little, accurate positioning.
As shown in figure 13, during work, first oilhole gag lever post 61 is rotated to minimum extreme position, in spring force and steel ball
In the presence of 66, oilhole gag lever post 61 is locked in minimum extreme position, and pressure head 62 is sunk in the positioning termination of oilhole gag lever post 61
Spacing rod aperture 6202 in.Then bushing 5 is inserted in pressure head component 6, the face of cylinder 6201 of pressure head 62 positions the inner circle of bushing 5
Cylinder.The step surface 6203 of pressure head 62 positions the end face of bushing 5.The bushing oil hole 501 of bushing 5 is directed at into oilhole gag lever post 61,
And oilhole gag lever post is rotated to extreme higher position, bushing oil hole position is locked by oilhole gag lever post.Bushing is being inserted in into press head group
Before part, by rotating handles 610, oilhole gag lever post 61 can be retracted in pressure head 62 completely, after bushing reaches precalculated position,
The rotation of oilhole gag lever post is improved, bushing is reduced and is damaged.
Figure 10 shows that bushing is pressed into the bushing press-mounting instrument state of cylinder block camshaft hole.Wherein spacing termination 8
Connection hydraulic test.
Preferably, the bushing press-mounting instrument also includes：Fairlead 9, the fairlead 9 are set in the fairlead of pressure head 62 and install
On groove 6204, be conducive to smoothly bushing is pressed in bush hole, reduce bushing and damage is biased discontinuity when starting to press against
Wound.
To sum up, the bushing press-mounting instrument promotes oilhole gag lever post to be positioned by the handle of rotary press head front end, positions
Gap is little, accurate positioning.In addition, the face of oilhole gag lever post positioning bushing oil hole is the face of cylinder, any Forced rotation is all subject to
The restriction of oilhole gag lever post, positioning are reliable.Further, being retracted in pressure head by rotating handles control oilhole gag lever post carries out bushing
Be inserted in, can reduce bushing damage.
The aforementioned description to specific illustrative embodiment of the present utility model be in order to illustrate and illustration purpose.These
Description is not wishing to for this utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining certain principles of the present utility model
And its practical application, so that those skilled in the art can realize and using a variety of examples of the present utility model
Property embodiment and a variety of selections and change.Scope of the present utility model is intended to by claims and its waits similar shape
Formula is limited.
Claims (7)
1. a kind of bushing press-mounting instrument, it is characterised in that include：
Pressure head component, which includes：Oilhole gag lever post, pressure head, centring sleeve, eccentric shaft, handle and stop screw, the pressure head have
The face of cylinder, spacing rod aperture and step surface；The oilhole gag lever post is cylindric, is coordinated with the gag lever post interporal lacuna, the oilhole
The lower end of gag lever post has positioning termination, and the week side of boss offers shifting block groove；The centring sleeve has endoporus, and its side week has radial direction
The spacing screw coordinated with the stop screw, one end of the centring sleeve have the locating flange for radially extending, the convex
Multiple bolts hole are circumferentially uniformly offered on edge, is fastened on the pressure head by screw；The eccentric shaft includes：It is main to turn
Axle, locating slot, pulling axis and stop lug, the main shaft are coordinated with the interior interporal lacuna of centring sleeve, and the locating slot is along main shaft
Circumference open up, for the stop screw coordinate it is spacing；The pulling axis is arranged on one end of the main shaft, and with it is described
Main shaft is eccentric, and the stop lug is arranged on the other end of the main shaft；The handle is arranged on the stop lug
Outside；The pulling axis is coordinated with the shifting block groove of the oilhole gag lever post, and the centring sleeve, eccentric shaft and handle form cam machine
Structure, is moved up and down by the rotation forces oilhole gag lever post of handle, positions the position of bushing oil hole；
Adapter, its one end are connected with the pressure head component；And
Spacing termination, its one end are connected with the other end of the adapter, for connecting hydraulic test.
2. bushing press-mounting instrument according to claim 1, it is characterised in that the perisporium of the centring sleeve offers axial steel
Pearl spacing hole, is laid with plug screw, spring, spring pad and steel ball inside the steel ball spacing hole, the one side of the stop lug
Radial direction two ends lay respectively it is fluted, for cooperatively forming position response mechanism with the steel ball.
3. bushing press-mounting instrument according to claim 2, it is characterised in that the groove is the circular groove for boring bottom.
4. bushing press-mounting instrument according to claim 2, it is characterised in that open for taper the termination of the steel ball spacing hole
Mouthful.
5. bushing press-mounting instrument according to claim 1, it is characterised in that circumferentially uniformly open up on the locating flange
There are four bolts hole.
6. bushing press-mounting instrument according to claim 1, it is characterised in that the another side of the stop lug has convex
Platform, the inner fluting of the handle, for being coordinated with the boss, and is tightened on eccentric shaft with screw.
7. bushing press-mounting instrument according to claim 1, it is characterised in that the front end of the pressure head is provided with fairlead installation
Groove, and fairlead is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621255231.8U CN206123555U (en) | 2016-11-08 | 2016-11-08 | Bush press fitting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621255231.8U CN206123555U (en) | 2016-11-08 | 2016-11-08 | Bush press fitting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206123555U true CN206123555U (en) | 2017-04-26 |
Family
ID=58562455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621255231.8U Withdrawn - After Issue CN206123555U (en) | 2016-11-08 | 2016-11-08 | Bush press fitting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206123555U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335024A (en) * | 2016-11-08 | 2017-01-18 | 广西玉柴机器股份有限公司 | The bushing pressing tool |
| CN107139129A (en) * | 2017-06-06 | 2017-09-08 | 襄阳钛虎动力工程有限公司 | A kind of cylinder liner assembly tool |
| CN108972453A (en) * | 2018-09-30 | 2018-12-11 | 广西玉柴机器股份有限公司 | A kind of pressing cover tools with safeguard function |
| CN113369839A (en) * | 2021-05-27 | 2021-09-10 | 成都飞机工业（集团）有限责任公司 | High-precision bushing assembling and centering device and bushing centering and assembling method |
-
2016
- 2016-11-08 CN CN201621255231.8U patent/CN206123555U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106335024A (en) * | 2016-11-08 | 2017-01-18 | 广西玉柴机器股份有限公司 | The bushing pressing tool |
| CN107139129A (en) * | 2017-06-06 | 2017-09-08 | 襄阳钛虎动力工程有限公司 | A kind of cylinder liner assembly tool |
| CN108972453A (en) * | 2018-09-30 | 2018-12-11 | 广西玉柴机器股份有限公司 | A kind of pressing cover tools with safeguard function |
| CN108972453B (en) * | 2018-09-30 | 2023-09-05 | 广西玉柴机器股份有限公司 | Sleeve pressing tool with protection function |
| CN113369839A (en) * | 2021-05-27 | 2021-09-10 | 成都飞机工业（集团）有限责任公司 | High-precision bushing assembling and centering device and bushing centering and assembling method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170426 Effective date of abandoning: 20180130 |
|
| AV01 | Patent right actively abandoned |