CN108527245A - A kind of piston pin backing-out punch - Google Patents
A kind of piston pin backing-out punch Download PDFInfo
- Publication number
- CN108527245A CN108527245A CN201810627330.1A CN201810627330A CN108527245A CN 108527245 A CN108527245 A CN 108527245A CN 201810627330 A CN201810627330 A CN 201810627330A CN 108527245 A CN108527245 A CN 108527245A
- Authority
- CN
- China
- Prior art keywords
- hole
- piston pin
- fixing sleeve
- piston
- lead screw
- 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
- B25B27/023—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 using screws
Abstract
The present invention relates to a kind of piston pin backing-out punch, for by piston pin, needle bearing is detached with piston, the backing-out punch includes piston fixing sleeve, lead screw and top cover, the piston fixing sleeve includes the fixing sleeve of tubular and the guide groove that is fixed on the outside of fixing sleeve, the guide groove is equipped with slot, guide groove is equipped with tapped through hole far from fixing sleeve side, tapped through hole is connected to guide groove, through-hole there are two being set on fixing sleeve, the tapped through hole is located along the same line with two through-holes on fixing sleeve, the lead screw is equipped with the screw thread to match with tapped through hole, lead screw one end is equipped with first boss, first boss outer diameter is less than lead screw outer diameter and matches with top cover internal diameter, the top cover is annular in shape, the backing-out punch can quickly completely detach piston with connecting rod.
Description
Technical field
The present invention relates to a kind of engine gudgeon pin backing-out punch, belong to repair equipment technology field.
Background technology
In repair, the maintenance of the engines such as outboard motor is special, piling machine and gasoling-engine saw, need that completely engine is lived
Plug is detached with connecting rod, but is inserted by piston pin between piston and connecting rod and is completed to connect in needle bearing, is taken when by piston pin
When going out, needle roller can lose support and fall, not easy to operate if piston pin is turned back to original place again at this time so that engine piston
Disassembly efficiency it is very low.
Invention content
The present invention in order to solve the problems in the existing technology, provide it is a kind of can fast and accurately complete piston pin with rolling
The piston pin backing-out punch of the dismounting of needle bearing and connecting rod.
In order to achieve the above object, technical solution proposed by the present invention is：A kind of piston pin backing-out punch is used for piston
Pin, needle bearing with piston detach, including piston fixing sleeve, lead screw and top cover, the piston fixing sleeve includes tubular
Fixing sleeve and the guide groove being fixed on the outside of fixing sleeve, the guide groove are equipped with slot, and guide groove is set far from fixing sleeve side
There is tapped through hole, tapped through hole to be connected to guide groove, set on fixing sleeve there are two through-hole, the tapped through hole on fixing sleeve
Two through-holes are located along the same line, and the lead screw is equipped with the screw thread to match with tapped through hole, and lead screw one end is equipped with first
Boss, first boss outer diameter are less than lead screw outer diameter and match with top cover internal diameter, and the top cover is annular in shape.
Above-mentioned technical proposal is further designed to：Further include bar, described multiple pull rod one end of dress is equipped with second boss, the
Two boss diameters are less than the multiple pull rod diameter of dress, and second boss is equipped with external screw thread, fill the multiple pull rod other end and are equipped with block, block outer diameter
More than the multiple pull rod diameter of dress, the first boss is equipped with blind hole, matches equipped with the external screw thread with second boss in blind hole
Internal thread.
The multiple pull rod diameter of dress matches with piston pin internal diameter, fills multiple rod length and is more than piston pin length.
The piston pin backing-out punch further includes extension bar, and the lead screw other end is equipped with reinforcing hole, reinforcing shank diameter and reinforcing
It is radially matched in hole.
The reinforcing hole is axial axially perpendicular with lead screw.
Described extension bar one end is equipped with block.
The top cover outer diameter is identical as piston pin external diameter, and less than the internal diameter of the two through hole on fixing sleeve.
Using the technical program piston pin backing-out punch dismantle piston pin the step of be：
A, the assembly of piston rod is detached with bent axle, takes out bent axle, piston is extracted from cylinder sleeve；
B, piston ring and piston pin spring are removed, top land is packed into piston fixing sleeve downward；
C, top cover is put into guide groove and is aligned with piston pin, lead screw one end is screwed in into tapped through hole, first boss is inserted into top cover
It is interior；
D, extension bar is inserted into reinforcing hole, rotary screw passes through a through-hole of fixing sleeve to enter in piston up to top cover, and will
Piston pin is ejected from another through-hole；
E, connecting rod is taken out, top cover is still fixed on connecting rod center at this time, it is ensured that needle bearing is orderly to be fixed on connecting rod, is reached
The purpose of dismounting.
Piston pin, which is filled multiple step, is：
A, piston pin is sleeved on the multiple pull rod of dress, and the multiple pull rod one end of dress is inserted into from the through hole of fixing sleeve；
B, the second boss of the multiple pull rod of dress is screwed in the blind hole of lead screw；
C, lead screw is reversely rotated, lead screw drives the multiple pull rod movement of dress, and then piston pin is pulled in the piston pin hole of connecting rod, and will
Top cover is ejected from the through hole of fixing sleeve；
D, the multiple pull rod of dress is detached with lead screw, taking out the multiple pull rod of dress, lead screw and top cover can be by piston pin, needle bearing, connecting rod
Success combines.
The technical program has the beneficial effect that：
Top cover can be stayed in the original position of piston pin when ejecting piston pin by the piston pin backing-out punch of the technical program, can be true
Guarantor's needle bearing is orderly to be fixed on connecting rod, multiple convenient for filling piston pin；When piston pin dress is multiple, piston pin is being pulled in into company
Top cover can be ejected again during bar.
The piston pin backing-out punch of the technical program is simple in structure, easy to use, can be quickly completely by piston and connecting rod point
From, it both can guarantee repair quality, while can also improve dismounting speed, it also can be more accurately by piston pin and rolling during dress is multiple
Needle bearing is combined with connecting rod simultaneously.
Description of the drawings
Fig. 1 is the structural schematic diagram of piston fixing sleeve in the present invention；
Fig. 2 is the structural schematic diagram of lead screw in the present invention；
Fig. 3 is the structural schematic diagram that multiple pull rod is filled in the present invention；
Fig. 4 is the usage state diagram one of backing-out punch of the present invention；
Fig. 5 is the usage state diagram two of backing-out punch of the present invention.
In above-mentioned attached drawing：
1- piston fixing sleeves, 11- fixing sleeves, 12- guide grooves, 13- tapped through holes, 14- slots, 15- through-holes, 2- lead screws, 21-
One boss, 22- reinforce hole, 23- blind holes, the multiple pull rod of 3- dresses, 31- second boss, 32- blocks, 4- extension bars, 41- blocks, the tops 5-
Set, 6- pistons, 7- piston pins, 8- needle rollers.
Specific implementation mode
Below in conjunction with the accompanying drawings and specific embodiment the present invention is described in detail.
Embodiment
A kind of piston pin backing-out punch of the present embodiment, including piston fixing sleeve 1, lead screw 2 and top cover 5.
The structure of piston fixing sleeve 1 is as shown in Figure 1, including tubular fixing sleeve 11 and be fixed on 11 outside of fixing sleeve
Guide groove 12, guide groove 12 is u-shaped, and a slot is formed among guide groove 12, and guide groove 12 is equipped with far from 11 side of fixing sleeve
Tapped through hole 13, tapped through hole 13 are connected to guide groove 12, are set on fixing sleeve 11 there are two through-hole 15, tapped through hole 13 with it is fixed
Two through-holes 15 are covered to be located along the same line.
As shown in Fig. 2, lead screw 2 is equipped with the screw thread to match with tapped through hole 13,2 one end of lead screw is equipped with the structure of lead screw 2
First boss 21,21 outer diameter of first boss are less than lead screw outer diameter and match with 5 internal diameter of top cover, and 2 other end of lead screw is equipped with reinforcing
Extension bar 4 can be inserted by hole 22, easy to operation to increase the rotary force of lead screw, and the present embodiment will reinforce 22 axial direction of hole and lead screw
2 axial perpendicular settings, are conveniently operated, and 4 one end of extension bar is equipped with baffle 41, extension bar 4 can be inserted into reinforcing hole 22 until gear
Plate 41 resists reinforcing hole 22, the reinforcing effect of maximizing extension bar 4.First boss 21 is equipped with blind hole 23, and blind hole 23 is equipped with
Internal thread.Top cover 5 can be sleeved in first boss 21, and lead screw 2 can screw in tapped through hole 13, as lead screw 2 constantly screws in, can be pushed
Top cover 5 passes through through-hole, into fixing sleeve 11.
Using the present embodiment piston pin backing-out punch dismantle piston pin schematic diagram as shown in figure 4, its specific steps are：
A, the assembly of piston rod is detached with bent axle, takes out bent axle, piston is extracted from cylinder sleeve；
B, piston ring and piston pin spring are removed, piston 6 is packed into piston fixing sleeve 1 top down；
C, top cover 5 annular in shape is put into the slot 14 of guide groove 12, and top cover 5 is made to be aligned with piston pin 7, by lead screw 2 one
End screws in tapped through hole 13, then first boss 21 will be inserted into top cover 5；
D, extension bar 4 is inserted into reinforcing hole 22, rotary screw 2 is lived up to top cover 5 passes through a through-hole 15 of fixing sleeve 11 to enter
In plug 6, and piston pin 7 is ejected from another through-hole 15；
E, connecting rod is taken out, top cover 5 is still fixed in connecting rod pin hole at this time, it is ensured that the needle roller 8 of needle bearing is orderly to be fixed on
On connecting rod, achieve the purpose that dismounting.
The structure of multiple pull rod 3 is filled as shown in figure 3, multiple 3 one end of pull rod of dress is equipped with second boss 31,31 diameter of second boss is small
In dress 3 diameter of multiple pull rod, second boss 31 is equipped with is equipped with block with 23 matched external screw thread of blind hole, dress 3 other end of multiple pull rod
32,32 outer diameter of block is more than dress 31 diameter of multiple pull rod, and the diameter for filling multiple pull rod 3 matches with 7 internal diameter of piston pin, fills multiple pull rod 3
Length is more than 7 length of piston pin, then piston pin 7, which can be sleeved on, fills on multiple pull rod 3, and one end is against on block 32, and second boss 31 can
Expose from 7 other end of piston pin.5 outer diameter of top cover is identical as 7 outer diameter of piston pin, and interior less than the two through hole 15 on fixing sleeve 11
Diameter, then top cover 5 perfect can replace the position of piston pin 7, and fixing sleeve 11 can be passed in and out from two through hole 15.
Piston pin filled into multiple schematic diagram using the backing-out punch of the present embodiment as shown in figure 5, its specific steps are：
A, piston pin 7 is sleeved on and is filled on multiple pull rod 3, and multiple 3 one end of pull rod will be filled from fixing sleeve 11 far from 12 side of guide groove
It is inserted at through-hole 15；
It b, will be in the dress again blind hole 23 of the screw-in lead screw 2 of second boss 31 of pull rod 3；
C, lead screw 2 is reversely rotated, lead screw 2 drives the multiple pull rod 3 of dress to move, and then piston pin 7 is pulled in connecting rod, and by top cover 5
It is ejected from the through-hole 15 of 12 side of close guide groove of fixing sleeve；
D, the multiple pull rod 3 of dress is detached with lead screw 2, take out dress again pull rod 3, lead screw 2 and top cover 5 can by piston pin, needle bearing,
Connecting rod successfully combines.
Technical scheme of the present invention is not limited to the various embodiments described above, all technical solutions obtained using equivalent replacement mode
It all falls in the scope of protection of present invention.
Claims (7)
1. a kind of piston pin backing-out punch is used for the separation of piston pin needle bearing and piston, it is characterised in that：It is solid including piston
Fixed set, lead screw and top cover, the piston fixing sleeve include tubular fixing sleeve and the guide groove that is fixed on the outside of fixing sleeve, institute
It states guide groove and is equipped with slot, guide groove is equipped with tapped through hole far from fixing sleeve side, and tapped through hole is connected to guide groove, fixed
It puts on and sets there are two through-hole, the tapped through hole is located along the same line with two through-holes on fixing sleeve, is set on the lead screw
Have a screw thread to match with tapped through hole, lead screw one end is equipped with first boss, first boss outer diameter be less than lead screw outer diameter and with top
Set internal diameter matches, and the top cover is annular in shape.
2. piston pin backing-out punch according to claim 1, it is characterised in that：Further include the multiple pull rod of dress, it is described to fill multiple pull rod one
End is equipped with second boss, and second boss diameter is less than connection shank diameter, and second boss is equipped with external screw thread, fills the multiple pull rod other end and sets
There are block, block outer diameter to be more than the multiple pull rod diameter of dress, the first boss is equipped with blind hole, is equipped with and second boss in blind hole
The internal thread that external screw thread matches.
3. piston pin backing-out punch according to claim 2, it is characterised in that：The multiple pull rod diameter of dress and piston pin internal diameter phase
Matching fills multiple rod length and is more than piston pin length.
4. piston pin backing-out punch according to claim 3, it is characterised in that：The piston pin backing-out punch further includes extension bar, institute
It states the lead screw other end and is equipped with reinforcing hole, radially matched in reinforcing shank diameter and reinforcing hole.
5. piston pin backing-out punch according to claim 3, it is characterised in that：The reinforcing hole is axial axial mutually vertical with lead screw
Directly.
6. piston pin backing-out punch according to claim 3, it is characterised in that：Described extension bar one end is equipped with block.
7. piston pin backing-out punch according to claim 3, it is characterised in that：The top cover outer diameter is identical as piston pin external diameter,
And less than the internal diameter of the two through hole on fixing sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627330.1A CN108527245A (en) | 2018-06-19 | 2018-06-19 | A kind of piston pin backing-out punch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810627330.1A CN108527245A (en) | 2018-06-19 | 2018-06-19 | A kind of piston pin backing-out punch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108527245A true CN108527245A (en) | 2018-09-14 |
Family
ID=63469807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810627330.1A Pending CN108527245A (en) | 2018-06-19 | 2018-06-19 | A kind of piston pin backing-out punch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108527245A (en) |
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