CN106737398A - Three-jaw bearing chest-developer - Google Patents
Three-jaw bearing chest-developer Download PDFInfo
- Publication number
- CN106737398A CN106737398A CN201611151622.XA CN201611151622A CN106737398A CN 106737398 A CN106737398 A CN 106737398A CN 201611151622 A CN201611151622 A CN 201611151622A CN 106737398 A CN106737398 A CN 106737398A
- Authority
- CN
- China
- Prior art keywords
- disk
- cylinder
- screw rod
- pawl
- pawls
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention discloses a kind of three-jaw bearing chest-developer.The bearing chest-developer includes：With externally threaded screw rod；Disk, is provided with tapped through hole on its core, the disk is connected by the through hole with the screw flight, and rotating the screw rod makes disk be moved linearly on screw rod；Three pulling force groups of pawl composition energy opening and closing；Disappear fault device, and it is the cylinder of both ends open, and the opening of described cylinder one end and the hole size and screw thread of the disk set all identical, and are threadedly coupled with the lower end of the screw rod, and under working condition, the cylinder is in synchronous linear motion between disk and pawl point；Soft board piece is inserted with the another port inwall of the cylinder, the cylinder is dismantled on the axle of bearing needed for packing into.Bearing chest-developer of the invention both facilitates positioning, improves the synchronism held of three dog clutch mandrels, is not easy to make hand injured again, moreover it is possible to removes the materials such as grease, the dregs of fat, rust staining on axle, is smoothly pulled out in order to bearing.
Description
Technical field
The present invention relates to bearing removal field, it is more particularly related to a kind of bearing chest-developer.
Background technology
When the bearing and splined hub of the assemblies such as speed changer is dismantled, special bearing chest expander is for solving during dismounting bearing
Problem without removal tool special.In currently available technology, the axle of speed changer is dismantled using traditional three-jaw bearing chest-developer
The pawl that staff is needed during with splined hub with hand pressure firmly bearing chest-developer is held, is so both inconvenient to position, and easily allow hand to receive
Wound.Further, since speed changer etc. needs the equipment of bearing to use with unloading process, grease, the dregs of fat, rust are often left on axle
Spot etc. hinders the material that bearing is pulled out, so be easily caused bearing locking or stopper and dismantle difficulty, if hard draw may be made
Frayed into bearing outer ring, damage the phenomenon of bearing, there is human and material resources and waste and security hidden trouble.
The content of the invention
It is an object of the invention to solve at least the above and/or defect, and provide at least will be described later excellent
Point.
Another object of the present invention is just to provide a kind of three-jaw bearing chest-developer, and it between three pawls by being connected with control
The spring that each pawl inwardly draws in is made, bearing chest-developer of the invention is not needed staff when the bearing of speed changer is dismantled
The pawl of bearing chest-developer is lived with hand pressure, so both facilitates positioning, synchronism is good, be not easy to make hand injured again.And by spiral shell
The lower end of bar is threaded with the fault device that disappears, and can both remove the materials such as grease, the dregs of fat, rust staining on axle, suitable in order to bearing
Profit is pulled out, and can carry out smooth positioning to bearing again, causes bearing tiltedly to block and stopper in order to avoid pulling force is uneven, reduces unloading process
The damage of middle (center) bearing.
In order to realize object of the present invention and other advantages, a kind of bearing chest-developer includes：
With externally threaded screw rod；
Disk, is provided with tapped through hole on its core, the disk passes through the through hole and the screw flight
Connection, rotating the screw rod makes disk be moved linearly on screw rod；
Three pawls composition can opening and closing pulling force groups, be hinged on one end of three pawls and the circumference of the disk
So that three pawls swing on the vertical plane of the disk, and three pawls are on decile the is distributed in disk, pawl and pawl it
Between be connected with the spring that three pawls of control inwardly draw in, the free end of three pawls is cambered pawl point, and pawl point can mutually be drawn close；
Disappear fault device, and it is the cylinder of both ends open, the opening of described cylinder one end and the hole size of the disk and
Screw thread sets all identical, and be threadedly coupled with the lower end of the screw rod, and under working condition, the cylinder is in disk and pawl point
Between synchronous linear motion；Soft board piece is inserted with the another port inwall of the cylinder, the internal diameter of the cylinder is torn open more than needed for
Unload bearing axle external diameter and less than needed for dismounting bearing external diameter, and protuberance by the soft board piece makes the port inner diameter of cylinder
Less than the axle external diameter of required dismounting bearing, the height of the cylinder is more than the position of bearings of axle to the length of shaft end head.
Preferably, the upper end of the screw rod is provided with detachable handle.
Preferably, there is boss on the core of the disk, the through hole is right through the boss.
Preferably, sustained height of the spring between pawl and pawl in pawl is arranged on, the spring successively connects three pawls
Connect, form the equilateral triangle not on the same plane with three pawls.
Preferably, the pawl point of three pawls is 90 ° of radians, and pawl tip is flat.
Preferably, than outer screw diameter ambassador, the upper port of cylinder is provided with radially the barrel bore of the fault device that disappears
Annular boss, the hole size and screw thread of the size of looping pit and the internal thread of setting and the disk be all identical.
Preferably, the upper end of the screw rod is without external screw thread.
Preferably, the soft board piece is sheet rubber, the two sides of the sheet rubber be provided with it is a plurality of with the cylinder radially
Groove.
Preferably, an annulus for being set in the screw rod upper end is fixedly connected with the disk, the annulus
Internal diameter of the internal diameter slightly larger than the screw rod.
Preferably, three pawls and the disk be hinged at intervals of 120 °.
The present invention at least includes following beneficial effect：The present invention controls each pawl inside by being connected between three pawls
The spring of gathering, makes bearing chest-developer of the invention that staff is not needed when the bearing of speed changer is dismantled with hand pressure firmly bearing
The pawl of chest expander, so both facilitates positioning, and synchronism is good, is not easy to make hand injured again.And by the lower end screw thread in screw rod
The fault device that disappears is connected with, the materials such as grease, the dregs of fat, rust staining on axle can have both been removed, smoothly pulled out in order to bearing, again can be with
Smooth positioning is carried out to bearing, causes bearing tiltedly to block and stopper in order to avoid pulling force is uneven, reduce the damage of unloading process middle (center) bearing.
The detachable handle for being easy to rotary screw is additionally provided with, staff is fixed disk can just facilitate the rotary screw to make circle
Disk and pulling force group band dynamic bearing are displaced outwardly.Through hole can cause disk and screw rod right through the boss on the core of disk
Connection is more steady.Spring between pawl and pawl is arranged on the sustained height of pawl, formed with three pawls not on the same plane etc.
Side triangle, inwardly draws in such that it is able to efficiently control three pawls, improves the synchronism that three dog clutch mandrels hold.Three pawls
Pawl point is 90 ° of radians, and pawl tip is easy to buckle on bearing for flat.Soft board piece is for sheet rubber and two sides is provided with a plurality of and institute
The groove of cylinder radial direction is stated, the material such as grease, the dregs of fat, rust staining for being easy to remove and collect on axle.Along screw rod upper end, on disk
It is fixedly connected with the annulus for being set in the screw rod, the internal diameter of the internal diameter slightly larger than the screw rod of the annulus so can be with
It is easy to staff to fix or rotating circular disk.
Brief description of the drawings
Fig. 1 is a kind of three-jaw bearing chest-developer schematic diagram of way of realization of the invention.
Fig. 2 is the fault device schematic diagram that disappears of the invention.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings, to make those skilled in the art with reference to specification text
Word can be implemented according to this.
Figures 1 and 2 show that implementing form according to three-jaw bearing chest-developer of the present invention, it includes：With outer spiral shell
The screw rod 2 of line；
Disk 3, is provided with tapped through hole on its core, the disk 3 passes through the through hole and the spiral shell of the screw rod 2
Line is connected, and rotating the screw rod 2 makes disk 3 be moved linearly on screw rod 2；
Three pawls 4 composition can opening and closing pulling force groups, on one end of three pawls 4 and the circumference of the disk 3
It is hinged so that three pawls 4 swing on the vertical plane of the disk 3, and three pawls 4 are on decile the is distributed in disk 3,
The spring 5 that three pawls 4 of control inwardly draw in is connected between pawl and pawl, the free end of three pawls 4 is cambered pawl point, pawl point
Can mutually draw close；
Disappear fault device 6, and it is the cylinder of both ends open, the opening of described cylinder one end and the hole size of the disk 3
Set all identical with screw thread, and be threadedly coupled with the lower end of the screw rod 2, under working condition, the cylinder is in disk 3 and pawl
Synchronous linear motion between point；Soft board piece 9 is inserted with the another port inwall of the cylinder, the internal diameter of the cylinder is more than institute
Need to dismantle bearing axle external diameter and less than needed for dismounting bearing external diameter, and protuberance by the soft board piece 9 makes the end of cylinder
The axle external diameter of intraoral footpath dismounting bearing less than needed for, the height of the cylinder is more than the position of bearings of axle to the length of shaft end head.
So by being connected with the spring 5 that three pawls 4 of control inwardly draw between three pawls 4 so that bearing chest-developer becomes in dismounting
During the bearing of fast device, 4 sets of three pawls of pulling force group are buckled on bearing, the restoring force of spring will be subject between the pawl of pulling force group
Act on and being drawn over to one's side to centre, live the pawl 4 of bearing chest-developer with hand pressure without staff, so in use need not
Realize clamping with the tight each pawl of hand pressure again, both facilitate positioning, the restoring force of spring 5 between three pawls 4 is acted on and can improved simultaneously
Three pawls 4 draw and buckle the synchronism of bearing in, are not easy to make hand injured again.And it is threadedly coupled by the lower end of screw rod 2
There is the fault device 6 that disappears, when the bearing of speed changer is dismantled, the cylinder lower ending opening of the fault device 6 that disappears is packed into the bearing that need to dismantle
On axle, and constantly rotate disappear fault device 6 or screw rod 2 so that the lower end surface of screw rod 2 is dismantled in the axial end of bearing needed for arriving at,
Then the dog clutch firmly bearing edge of pulling force group is allowed, then rotary screw 2 makes disk 3 be pulled outwardly together with pawl 4 and bearing, while
Fault device 6 disappear also when rotary screw, is synchronously displaced outwardly, and tightly push down bearing so that the pawl 4 of pulling force group can jail
Gu entirely clasp bearing to pull outward, while can also standing screw 2, appropriate rotating circular disk 3 so that disappear fault device energy relative axle
Rotate, so as to be removed to materials such as the grease on axle, the dregs of fat, rust stainings, be both easy to bearing smoothly to pull out, bearing can be carried out again
Smooth positioning, causes bearing tiltedly to block and stopper in order to avoid pulling force is uneven, reduces the damage of unloading process middle (center) bearing and axle.
In order that staff is in fixed disc 3, rotary screw 2 can be more convenient, make disk 3 and pulling force group band dynamic bearing
It is displaced outwardly, the upper end of screw rod 2 can be provided with detachable handle.General disk 3 need not be rotatably moved on screw rod
End, it is possible to which be set to without externally threaded for the upper end of screw rod 2 by selection.
In order that obtaining disk 3 is connected more steady with screw rod 2, boss can be set on the core of disk 3, and make through hole
Right through boss, so threaded length of through hole can be longer.
There is more preferable equilibrant force inwardly to draw in order to three pawls can be efficiently controlled, it is same that three dog clutch mandrels of raising hold
Step property, the spring between pawl and pawl can be arranged on the sustained height of pawl, successively connect three pawls, formed and do not existed with three pawls
Conplane equilateral triangle.
In order that the pawl 4 of pulling force group preferably buckles bearing, the pawl point of pawl 4 can be set to 90 ° of radians, and pawl point
It is flat to hold, and increases contact surface and stress effect.
The bearing that need to be dismantled axle than it is larger when, in order to instrument is easy to use, screw rod 2 need not be too thick, it is only necessary to will
Disappearing, set must be bigger than axle external diameter for the cylinder of fault device 6, and the barrel bore of the fault device 6 that disappears certainly is also bigger than the external diameter of screw rod 2, cylinder
Upper port is provided with the annular boss 8 of radial direction, the hole size of the size of looping pit 7 and the internal thread that sets and the disk 3
All identical with screw thread, looping pit 7 can be connected with screw flight.
For the ease of removing in the unloading process and collecting the materials such as grease, the dregs of fat, the rust staining on axle, soft board piece 9 can be with
To select be sheet rubber, has soft plastic sheet of adsorptivity etc., and two faces of sheet rubber or plastic sheet be provided with it is a plurality of with
The groove of the cylinder radial direction.
Fixed for the ease of staff or rotating circular disk, can be fixedly connected with disk 3 and be set in the spiral shell
The annulus of the upper end of bar 2, the internal diameter of the internal diameter slightly larger than the screw rod of annulus, which increases the face that staff grasps disk 3
Product, has more consolidated disk 3 and has been moved along a straight line along screw rod 2.
Three pawls 4 on decile the is distributed in disk 3, also correspond to that three pawls 4 and the disk 3 be hinged at intervals of
120°。
The various forms of bearing chest-developers of the present invention, can realize convenient positioning, and it is same that three dog clutch mandrels of raising hold
Step property, is not easy to allow hand injured again, moreover it is possible to removes the materials such as grease, the dregs of fat, rust staining on axle, is smoothly pulled out in order to bearing,
Smooth positioning can be carried out to bearing, cause bearing tiltedly to block and stopper in order to avoid pulling force is uneven, reduce unloading process middle (center) bearing
Damage.
Although embodiment of the present invention is disclosed as above, it is not restricted to listed in specification and implementation method
With, it can be applied to various suitable the field of the invention completely, for those skilled in the art, can be easily
Other modification is realized, therefore under the universal limited without departing substantially from claim and equivalency range, the present invention is not limited
In specific details and shown here as the legend with description.
Claims (10)
1. a kind of three-jaw bearing chest-developer, it is characterised in that including：
With externally threaded screw rod；
Disk, is provided with tapped through hole on its core, the disk is connected by the through hole with the screw flight,
Rotating the screw rod makes disk be moved linearly on screw rod；
Three pawls composition can opening and closing pulling force groups, be hinged on one end of three pawls and the circumference of the disk so that
Three pawls swing on the vertical plane of the disk, and three pawls between pawl and pawl on decile the is distributed in disk, to connect
The spring that three pawls of control inwardly draw in is connected to, the free end of three pawls is cambered pawl point, and pawl point can mutually be drawn close；
Disappear fault device, and it is the cylinder of both ends open, the opening of described cylinder one end and the hole size and screw thread of the disk
Set all identical, and be threadedly coupled with the lower end of the screw rod, under working condition, the cylinder is in same between disk and pawl point
Step linear motion；Soft board piece is inserted with the another port inwall of the cylinder, the internal diameter of the cylinder dismantles axle more than needed for
The axle external diameter that holds and less than needed for dismounting bearing external diameter, and be less than the port inner diameter of cylinder by the protuberance of the soft board piece
The axle external diameter of required dismounting bearing, the height of the cylinder is more than the position of bearings of axle to the length of shaft end head.
2. three-jaw bearing chest-developer according to claim 1, it is characterised in that the upper end of the screw rod is provided with detachably
Handle.
3. three-jaw bearing chest-developer according to claim 1, it is characterised in that have boss, institute on the core of the disk
Through hole is stated right through the boss.
4. three-jaw bearing chest-developer according to claim 1, it is characterised in that be arranged on the spring between pawl and pawl in pawl
Sustained height, the spring successively connects three pawls, forms the equilateral triangle not on the same plane with three pawls.
5. three-jaw bearing chest-developer according to claim 1, it is characterised in that the pawl point of three pawls is 90 ° of radians,
Pawl tip is flat.
6. three-jaw bearing chest-developer according to claim 1, it is characterised in that the barrel bore of the fault device that disappears compares spiral shell
Bar external diameter ambassador, the upper port of cylinder is provided with the annular boss of radial direction, the size of looping pit and the internal thread that sets with it is described
The hole size and screw thread of disk are all identical.
7. the three-jaw bearing chest-developer according to claim any one of 1-6, it is characterised in that the upper end of the screw rod is without outer
Screw thread.
8. the three-jaw bearing chest-developer according to claim any one of 1-6, it is characterised in that the soft board piece is rubber
Piece, the two sides of the sheet rubber is provided with a plurality of groove with the cylinder radial direction.
9. three-jaw bearing chest-developer according to claim 8 a, it is characterised in that set is fixedly connected with the disk
It is located at the annulus of the screw rod upper end, the internal diameter of the internal diameter slightly larger than the screw rod of the annulus.
10. bearing chest-developer according to claim 9, it is characterised in that between three pawls and the disk are hinged
It is divided into 120 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611151622.XA CN106737398A (en) | 2016-12-13 | 2016-12-13 | Three-jaw bearing chest-developer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611151622.XA CN106737398A (en) | 2016-12-13 | 2016-12-13 | Three-jaw bearing chest-developer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106737398A true CN106737398A (en) | 2017-05-31 |
Family
ID=58887685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611151622.XA Pending CN106737398A (en) | 2016-12-13 | 2016-12-13 | Three-jaw bearing chest-developer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106737398A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108255043A (en) * | 2018-03-15 | 2018-07-06 | 珠海天威飞马打印耗材有限公司 | Handle box |
| CN108544423A (en) * | 2018-07-16 | 2018-09-18 | 岑颖明 | A kind of bearing extractor with hammering function |
| WO2019008527A1 (en) * | 2017-07-04 | 2019-01-10 | Universidad Francisco De Paula Santander | Device and method for extracting and inserting engine cylinder sleeves |
| CN109676568A (en) * | 2019-02-26 | 2019-04-26 | 国网安徽省电力有限公司宿州供电公司 | A kind of inside corners arm claw assembly of spring dismounting |
| CN113231989A (en) * | 2021-06-15 | 2021-08-10 | 高伟 | New energy automobile decomposition device |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084305A (en) * | 1976-12-23 | 1978-04-18 | Chang Yun Te | Pulley puller |
| CN203031238U (en) * | 2013-01-23 | 2013-07-03 | 常州信息职业技术学院 | Thruster |
| CN203092469U (en) * | 2013-01-23 | 2013-07-31 | 常州信息职业技术学院 | Puller |
| CN103465221A (en) * | 2013-08-27 | 2013-12-25 | 张家港优尼克五金工具有限公司 | Three-jaw puller |
| US20160151867A1 (en) * | 2014-12-01 | 2016-06-02 | Plus Craft Industrial Co., Ltd. | Puller |
-
2016
- 2016-12-13 CN CN201611151622.XA patent/CN106737398A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084305A (en) * | 1976-12-23 | 1978-04-18 | Chang Yun Te | Pulley puller |
| CN203031238U (en) * | 2013-01-23 | 2013-07-03 | 常州信息职业技术学院 | Thruster |
| CN203092469U (en) * | 2013-01-23 | 2013-07-31 | 常州信息职业技术学院 | Puller |
| CN103465221A (en) * | 2013-08-27 | 2013-12-25 | 张家港优尼克五金工具有限公司 | Three-jaw puller |
| US20160151867A1 (en) * | 2014-12-01 | 2016-06-02 | Plus Craft Industrial Co., Ltd. | Puller |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019008527A1 (en) * | 2017-07-04 | 2019-01-10 | Universidad Francisco De Paula Santander | Device and method for extracting and inserting engine cylinder sleeves |
| CN108255043A (en) * | 2018-03-15 | 2018-07-06 | 珠海天威飞马打印耗材有限公司 | Handle box |
| CN108544423A (en) * | 2018-07-16 | 2018-09-18 | 岑颖明 | A kind of bearing extractor with hammering function |
| CN109676568A (en) * | 2019-02-26 | 2019-04-26 | 国网安徽省电力有限公司宿州供电公司 | A kind of inside corners arm claw assembly of spring dismounting |
| CN113231989A (en) * | 2021-06-15 | 2021-08-10 | 高伟 | New energy automobile decomposition device |
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Application publication date: 20170531 |