CN106624733B - A kind of press fitting of piston pin device - Google Patents
A kind of press fitting of piston pin device Download PDFInfo
- Publication number
- CN106624733B CN106624733B CN201611042166.5A CN201611042166A CN106624733B CN 106624733 B CN106624733 B CN 106624733B CN 201611042166 A CN201611042166 A CN 201611042166A CN 106624733 B CN106624733 B CN 106624733B
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- Prior art keywords
- piston pin
- press fitting
- transmission shaft
- pressure head
- piston
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/02—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same
- B23P19/027—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for connecting objects by press fit or for detaching same using hydraulic or pneumatic means
Abstract
The present invention provides a kind of press fitting of piston pin devices comprising bottom plate, transmission shaft, piston pin fixing axle, centering pressure head, piston pin, driving mechanism and be arranged in bottom plate one end support frame, be provided with guide sleeve on support frame；One end of transmission shaft is connected with driving mechanism, and the centre bore that the other end of transmission shaft passes through guide sleeve is threadedly coupled with the installation end of piston pin fixing axle；Centre bore and propeller shaft slip cooperate；It is provided with gear on installation end and connects protrusion；The connecting pin of piston pin fixing axle is threadedly coupled with centering pressure head；Piston pin is sleeved in piston pin fixing axle, and one end and the gear of piston pin connect protrusion and abut against, and the other end and the centering pressure head of piston pin abut against；The press fitting end of centering pressure head is pyramidal structure；Transmission shaft has first position and the second position.Press fitting of piston pin device of the invention can be effectively reduced the labor intensity of operator, while the assembling quality of piston pin can also be made preferable.
Description
Technical field
The present invention relates to engine assembly technical fields, and in particular to a kind of press fitting of piston pin device.
Background technique
In the prior art when assembling piston pin, usually operator is beaten with hammer manually, and realizes piston
Pin with piston on pin hole and piston rod on connecting rod small end hole assembly so that the labor intensity of operator compared with
Greatly, so that its assembly efficiency is lower.Meanwhile the assembly precision of such mode is not easy to control, to be easier to so that piston
The assembling quality of pin is poor.
Summary of the invention
The object of the present invention is to provide a kind of press fitting of piston pin devices, strong with the labour for solving operator in the prior art
Spend larger, the poor problem of the assembling quality of piston pin.
To achieve the above object, the present invention provides the following technical scheme that
A kind of press fitting of piston pin device comprising bottom plate, transmission shaft, piston pin fixing axle, centering pressure head, piston pin, use
In the support of the driving mechanism and one end that the bottom plate is arranged in that drive the transmission shaft axially to move back and forth along it
Frame is provided with guide sleeve on support frame as described above；One end of the transmission shaft is connected with the driving mechanism, the transmission shaft it is another
The centre bore that one end passes through the guide sleeve is threadedly coupled with the installation end of the piston pin fixing axle；The centre bore with it is described
Propeller shaft slip cooperation；Gear, which is provided with, on the installation end connects protrusion；The connecting pin of the piston pin fixing axle and the centering
Pressure head is threadedly coupled；The piston pin is sleeved in the piston pin fixing axle, and one end of the piston pin connects convex with the gear
It rises and abuts against, the other end of the piston pin is abutted against with the centering pressure head；The press fitting end of the centering pressure head is taper knot
Structure；The transmission shaft has first position and the second position.
Preferably, one end on the bottom plate far from support frame as described above is vertically installed with riser, is provided on the riser
Limit sleeve corresponding with the centering pressure head；There is the axial hole for accommodating the press fitting end on the limit sleeve.
Preferably, it is provided with external screw thread on the limit sleeve, is provided on the riser and matches with the external screw thread
Threaded hole.
It preferably, further include stiffening plate, far from the centering pressure head on one end of the stiffening plate and the riser
Side is connected, and the other end of the stiffening plate is connected with the bottom plate.
Preferably, support frame as described above includes two support plates and two fixed plates, and two support plates are oppositely arranged on the bottom
The two sides of plate, two fixed plates are oppositely arranged on the side in two support plates far from the bottom plate；The two sides of the guide sleeve
It is connected respectively with two fixed plates.
Preferably, the driving mechanism includes that kinematic link and transmission shaft transverse slat disposed in parallel and setting exist
Flexible force piece on the transverse slat, the transverse slat are vertically connected with the riser；The bottom plate between two support plates
On be provided with connecting plate, the first end of the kinematic link is rotatablely connected by rotary shaft and the connecting plate；The transmission connects
The second end of bar is provided with the first strip slide opening, and it is sliding that the second strip is additionally provided between the first end and the second end
Hole；The telescopic end of the flexible force piece is provided with first rotating shaft, and the first rotating shaft and the first strip slide opening slide
Cooperation；One end on the transmission shaft far from the centering pressure head is provided with the second shaft, second shaft and described second
Strip slide opening is slidably matched.
Preferably, the flexible force piece is hydraulic cylinder, is provided in the hydraulic control oil circuit of the hydraulic cylinder for controlling
The electro hydraulic valve of fluid pressure and fluid flow processed.
Preferably, through-hole corresponding with the connecting plate is provided in the support plate.
Preferably, the telescopic end is provided with u-bracket, the both ends of the first rotating shaft respectively with the u-bracket
Two sidewalls are connected, and the first end is located in the opening of the u-bracket；The one of the separate centering pressure head on the transmission shaft
End is provided with U-shaped fixed frame, and the both ends of second shaft are connected with the both side plate of the U-shaped fixed frame respectively, and described second
Strip slide opening is between two side plates.
Preferably, the gear connects the confined planes being provided in protrusion for abutting against with piston.
The beneficial effects of the present invention are:
Press fitting of piston pin device of the invention by the relative position of fixture fixed piston and connecting rod, makes when in use
Pin hole is corresponding with connecting rod small end hole；Then transmission shaft is driven axially to move right along guide sleeve by driving mechanism again, so that
The press fitting end of centering pressure head is in contact with pin hole, connecting rod small end hole, since the press fitting end is pyramidal structure, so as to pin
Hole and connecting rod small end hole realize automatic centering positioning；Then, transmission shaft continues to move right and drive positioned at piston pin fixing axle
On piston pin be smoothly pressed into pin hole and connecting rod small end hole, until press fitting of piston pin complete.Press fitting of piston pin of the invention
Device preferably eliminates the artificial press fitting process of piston pin, to significantly reduce the labor intensity of operator, significantly
Ground improves assembly efficiency；Meanwhile be pressed end can automatic centering positioning, thus preferably improve piston pin assembly essence
Degree, so that the assembling quality of piston pin is preferable.
Detailed description of the invention
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, below will be to institute in embodiment
It needs attached drawing to be used to be briefly described, and specific embodiments of the present invention will be made further specifically in conjunction with attached drawing
It is bright, wherein
Fig. 1 is the schematic diagram of press fitting of piston pin device provided in an embodiment of the present invention；
Fig. 2 is another schematic diagram of press fitting of piston pin device provided in an embodiment of the present invention；
Fig. 3 is the schematic diagram of rack body provided in an embodiment of the present invention；
Fig. 4 is the schematic diagram of piston pin tooling provided in an embodiment of the present invention；
Fig. 5 is the schematic diagram of transmission shaft provided in an embodiment of the present invention；
Fig. 6 is the schematic diagram of kinematic link provided in an embodiment of the present invention；
Fig. 7 is the schematic diagram after the completion of press fitting of piston pin provided in an embodiment of the present invention.
It is attached marked in the figure:
11, bottom plate 12, riser 13, stiffening plate 14, transverse slat 21, support plate
22, fixed plate 31, transmission shaft 32, U-shaped fixed frame 33, the second shaft
41, guide sleeve 51, gear connect protrusion 52, press fitting end 61, hydraulic cylinder 62, tappet
63, u-bracket 64, first rotating shaft 71, piston 72, connecting rod 73, piston pin
81, kinematic link 82, connecting plate 83, rotary shaft 84, the first strip slide opening
85, first end 86, the second strip slide opening 91, limit sleeve 92, annular stop protrusion
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, below in conjunction with specific embodiment pair
This programme is further discussed in detail.
As shown in Figures 1 to 7, the embodiment of the invention provides a kind of press fitting of piston pin devices comprising bottom plate 11, transmission
Axis 31, piston pin fixing axle, centering pressure head, piston pin 73, the drive for driving transmission shaft 31 axially to move back and forth along it
Motivation structure and be arranged in bottom plate 11 one end support frame, be provided with guide sleeve 41 on support frame；One end of transmission shaft 31 with
Driving mechanism is connected, and the other end of transmission shaft 31 passes through the centre bore of guide sleeve 41 and the installation end screw thread of piston pin fixing axle connects
It connects；Centre bore is slidably matched with transmission shaft 31；It is provided with gear on installation end and connects protrusion 51；The connecting pin of piston pin fixing axle with it is right
Middle pressure head is threadedly coupled；Piston pin 73 is sleeved in piston pin fixing axle, and one end and the gear of piston pin 73 connect protrusion 51 and abut against,
The other end of piston pin 73 is abutted against with centering pressure head；The press fitting end 52 of centering pressure head is pyramidal structure；Transmission shaft 31 has the
One position and the second position.It is understood that the first position of transmission shaft 31, as transmission shaft 31 are being not affected by driving mechanism
When driving, the press fitting end 52 of centering pressure head is in when being pressed state, the location of transmission shaft 31；The second of transmission shaft 31
It sets, as transmission shaft 31 is after being driven the driving of mechanism, after driving centering pressure head to complete to the press fitting work of piston pin 73,
The location of transmission shaft 31；Piston pin fixing axle, piston pin 31 and centering pressure head may be constructed piston pin tooling；It can root
According to different types of piston pin 31, corresponding piston pin fixing axle and centering pressure head are designed, forms each type piston pin 31 specially
Piston pin tooling.
Press fitting of piston pin device provided in an embodiment of the present invention passes through fixture fixed piston 71 and connecting rod when in use
72 relative position keeps pin hole corresponding with connecting rod small end hole；Then drive transmission shaft 31 along guide sleeve by driving mechanism again
41 axial direction moves right, so that the press fitting end 52 of centering pressure head is in contact with pin hole, connecting rod small end hole, due to the press fitting end 54
For pyramidal structure, so as to realize automatic centering positioning with pin hole and connecting rod small end hole；Then, transmission shaft 31 continues to the right
Movement, and the piston pin 73 being located in piston pin fixing axle is driven smoothly to be pressed into pin hole and connecting rod small end hole, until piston
The press fitting of pin 73 is completed.Press fitting of piston pin device of the invention preferably eliminates the artificial press fitting process of piston pin 73, so as to
The labor intensity of operator is enough significantly reduced, assembly efficiency is greatly increased；Meanwhile press fitting end 52 can be automatic
Centering positioning, so that the assembly precision of piston pin 73 is preferably improved, so that the assembling quality of piston pin 73 is preferable.
As depicted in figs. 1 and 2, in another embodiment provided by the invention, one end on bottom plate 11 far from support frame can
To be vertically installed with riser 12, limit sleeve 91 corresponding with centering pressure head is provided on riser 12；Have on limit sleeve 91 and holds
Receive press fitting end 52 axial hole.Piston 71 and connecting rod 72 can be held at this time, and make the pin hole of piston 71 and the company of connecting rod 72
The small head bore of bar simply to just, then by piston 71 being tightly attached on one side on limit sleeve 91 close to press fitting end 52 one end end face
On, it can then start the press fitting work that driving mechanism carries out piston pin 73.Since the press fitting end 52 of pyramidal structure has preferably
Ground automatic centering positioning function, and limit sleeve 91 can preferably be limited with piston 71, therefore such press-fit approach also can
Preferably guarantee assembly precision；Meanwhile de-chucking is preferably saved during the press fitting of piston pin 73, so that piston pin
73 press fitting is more convenient, and then greatly increases the assembly efficiency of piston pin 73.It is understood that limit sleeve 91
The annular stop protrusion 92 for abutting against with piston 71 can be set in the upper side close to press fitting end 52, to effectively increase
Big fitting area between limit sleeve 91 and piston 71, and then can be during the press fitting of piston pin 73 preferably to piston
71 are limited.
Further, external screw thread can be set on limit sleeve 91, the spiral shell matched with external screw thread is provided on riser 12
Pit also can easily carry out more limit sleeve 91 to conveniently realize the connection between limit sleeve 91 and riser 12
It changes and repairs；Meanwhile rotary stopper set 91 can on limit sleeve 91 close to press fitting end 52 one end end face and riser 12
The distance between be adjusted so that the limit sleeve 91 can be suitable for different types of piston pin 73 press fitting work
In, so that the scope of application of the press fitting of piston pin device is relatively broad.
In order to preferably improve the bonding strength between riser 12 and bottom plate 11, the press fitting of piston pin device is improved
Reliability, the press fitting of piston pin device can also include stiffening plate 13, separate centering pressure on one end of stiffening plate 13 and riser 12
The side of head is connected, and the other end of stiffening plate 13 is connected with bottom plate 11.
Specifically, support frame may include two support plates 21 and two fixed plates 22, and two support plates 21 are oppositely arranged on bottom plate
Two sides, two fixed plates 22 be oppositely arranged in two support plates 21 far from bottom plate 11 side；The two sides of guide sleeve 41 respectively with
Two fixed plates 22 are connected.The structure of support frame is relatively simple at this time, while the support frame can also consolidate guide sleeve 41
Reliable support, so that the reliability of the press fitting of piston pin device is higher.
As shown in Figure 2 and Figure 6, in another embodiment provided by the invention, driving mechanism may include kinematic link 81,
With the transverse slat 14 disposed in parallel of transmission shaft 31 and the flexible force piece being arranged on transverse slat 14, the phase vertical with riser 12 of transverse slat 14
Even；Be provided with connecting plate 82 on bottom plate 11 between two support plates 21, the first end 85 of kinematic link 81 by rotary shaft 83 with
Connecting plate 82 is rotatablely connected；The second end of kinematic link 81 is provided with the first strip slide opening 84, between first end and second end
It is additionally provided with the second strip slide opening 86；The telescopic end of flexible force piece is provided with first rotating shaft 64, first rotating shaft 64 and first
Strip slide opening 84 is slidably matched；One end on transmission shaft 31 far from centering pressure head is provided with the second shaft 33, the second shaft 33
It is slidably matched with the second strip slide opening 86.It can be realized as the drive to transmission shaft 31 by relatively simple driving mechanism at this time
It is dynamic, while the reliability of the driving mechanism is higher, and repairs also more convenient.It is understood that telescopic end is to close to flexible
When the direction of force piece is mobile, kinematic link 81 can be driven to be rotated clockwise around rotary shaft 83 by first rotating shaft 64,
And drive transmission shaft 31 to move right by the second shaft 33, until completing the press fitting work of piston pin 73, while first rotating shaft
64 and second shaft 33 slided in the first strip slide opening 84 and the second strip slide opening 86 respectively；The flexible force piece can be with
For cylinder, hydraulic cylinder 61 etc.；Transverse slat 14, riser 12, bottom plate 11, support plate 21, connecting plate 82 and stiffening plate 13 may be constructed
Rack body.
Further, flexible force piece can be hydraulic cylinder 61, be provided with and be used in the hydraulic control oil circuit of hydraulic cylinder 61
Control the electro hydraulic valve of fluid pressure and fluid flow.Fluid pressure can be efficiently controlled by electro hydraulic valve in this way
And fluid flow, to efficiently control the feed speed of the tappet 62 of hydraulic cylinder 61, and control centering provided by the invention
The pressure value of pressure head, and then generation phenomena such as crushing components can be effectively prevented from.It is understood that tappet at this time
62 be telescopic end.
In order to make the installation between kinematic link 81 and connecting plate 82 more convenient, can be set in support plate 21
There is through-hole corresponding with connecting plate 82.Preferably, the number of connecting plate 82 is two, and two connecting plates 82 are oppositely arranged on bottom plate
On 11, the both ends of rotary shaft 83 are connected with two connecting plates 82 respectively, the first end of kinematic link 81 be located at two connecting plates 82 it
Between rotary shaft 83 be rotatablely connected so that the connection reliability between kinematic link 81 and connecting plate 82 is higher.
As shown in Figure 2 and Figure 5, telescopic end can be set u-bracket 63, the both ends of first rotating shaft 64 respectively with U-shaped branch
The two sidewalls of frame 63 are connected, and first end is located in the opening of u-bracket 63；One end on transmission shaft 31 far from centering pressure head can be with
It is provided with U-shaped fixed frame 32, the both ends of the second shaft 33 are connected with the both side plate of U-shaped fixed frame 32 respectively, and the second strip is sliding
Hole 86 is between both side plate, so that the connection between telescopic end, transmission shaft 31 and kinematic link 81 is more firm
Gu it is reliable, so that the reliability of the driving mechanism is improved.
Specifically, gear connects the confined planes that can be set in protrusion 51 for abutting against with piston 71, so as to preferable
Ground avoids piston pin 73 from being excessively pressed, and then improves the press fitting precision of piston pin 73, so that the assembling quality of piston pin 73
More preferably.It is understood that completing the press fitting work of piston pin 73 when the confined planes and piston 71 abut against, being driven at this time
Axis 31 is in the second position；It can be annular protrusion that the gear, which connects protrusion 51, which can be on the annular protrusion
Annular surface, so that it has preferably limit effect.
The general use process of press fitting of piston pin device provided in an embodiment of the present invention are as follows: piston pin tooling is passed through into piston
Pin fixing axle is attached on transmission shaft 31；Hand-held piston 71 and connecting rod 72, and make the pin hole of piston 71 and the small end of connecting rod of connecting rod 72
Hole is simply to just, then be tightly attached to piston 71 on limit sleeve 91 on one side on the end face of the one end at press fitting end 52；Then
Hydraulic cylinder 61 can be started, the tappet 62 of hydraulic cylinder 61 will move right, and drive kinematic link 81 by first rotating shaft 64
Rotated clockwise around rotary shaft 83, and by the second shaft 33 drive transmission shaft 31 move right, piston pin fixing axle with
Move right so that the press fitting end 52 of centering pressure head and pin hole and connecting rod small end hole realize automatic centering positioning, then guide
It is sleeved on the piston pin 73 in piston pin fixing axle to be smoothly pressed into pin hole and connecting rod small end hole, until confined planes and piston 71
It abuts against, transmission shaft 31 is in the second position at this time, that is, completes the press fitting work of piston pin 73；After the completion of press fitting, control hydraulic
It is mobile to the direction far from hydraulic cylinder 61 that cylinder 61 drives tappet 62, and kinematic link 81 is driven to be turned counterclockwise around rotary shaft 83
Dynamic, transmission shaft 31 is moved downward along guide sleeve 41, until transmission shaft 31 moves to first position, stops hydraulic cylinder 61, by piston
71, connecting rod 72 and piston pin tooling are unloaded from transmission shaft 31 together, then remove centering pressure head i.e. from piston pin fixing axle
It can.
The above is only a preferred embodiment of the present invention, it should be pointed out that these embodiments are merely to illustrate this
It invents rather than limits the scope of the invention, moreover, after reading the contents of the present invention, relevant technical staff in the field
Various changes or modification can be made to the present invention, such equivalent forms equally fall into the application the appended claims and limited
Range.
Claims (10)
1. a kind of press fitting of piston pin device, which is characterized in that it include bottom plate, transmission shaft, piston pin fixing axle, centering pressure head,
Piston pin, the driving mechanism for driving the transmission shaft axially to move back and forth along it and it is arranged in the one of the bottom plate
The support frame at end is provided with guide sleeve on support frame as described above；One end of the transmission shaft is connected with the driving mechanism, the biography
The centre bore that the other end of moving axis passes through the guide sleeve is threadedly coupled with the installation end of the piston pin fixing axle；The center
Hole and the propeller shaft slip cooperate；Gear, which is provided with, on the installation end connects protrusion；The connecting pin of the piston pin fixing axle with
The centering pressure head is threadedly coupled；The piston pin is sleeved in the piston pin fixing axle, one end of the piston pin and institute
It states gear and connects protrusion and abut against, the other end of the piston pin is abutted against with the centering pressure head；The press fitting end of the centering pressure head
For pyramidal structure；The transmission shaft has first position and the second position.
2. press fitting of piston pin device according to claim 1, which is characterized in that far from support frame as described above on the bottom plate
One end is vertically installed with riser, and limit sleeve corresponding with the centering pressure head is provided on the riser；On the limit sleeve
With the axial hole for accommodating the press fitting end.
3. press fitting of piston pin device according to claim 2, which is characterized in that it is provided with external screw thread on the limit sleeve,
The threaded hole matched with the external screw thread is provided on the riser.
4. press fitting of piston pin device according to claim 2, which is characterized in that it further includes stiffening plate, the stiffening plate
One end be connected on the riser far from the side of the centering pressure head, the other end of the stiffening plate and the bottom plate phase
Even.
5. press fitting of piston pin device according to claim 2, which is characterized in that support frame as described above includes two support plates and two
Fixed plate, two support plates are oppositely arranged on the two sides of the bottom plate, and two fixed plates are oppositely arranged in two support plates
Side far from the bottom plate；The two sides of the guide sleeve are connected with two fixed plates respectively.
6. press fitting of piston pin device according to claim 5, which is characterized in that the driving mechanism include kinematic link,
With transmission shaft transverse slat disposed in parallel and the flexible force piece being arranged on the transverse slat, the transverse slat and the riser
It is vertically connected；Connecting plate is provided on the bottom plate between two support plates, the first end of the kinematic link passes through rotation
Shaft and the connecting plate are rotatablely connected；The second end of the kinematic link is provided with the first strip slide opening, the first end
The second strip slide opening is additionally provided between the second end；The telescopic end of the flexible force piece is provided with first rotating shaft,
The first rotating shaft is slidably matched with the first strip slide opening；One end on the transmission shaft far from the centering pressure head is set
It is equipped with the second shaft, second shaft is slidably matched with the second strip slide opening.
7. press fitting of piston pin device according to claim 6, which is characterized in that the flexible force piece is hydraulic cylinder, institute
State the electro hydraulic valve being provided in the hydraulic control oil circuit of hydraulic cylinder for controlling fluid pressure and fluid flow.
8. press fitting of piston pin device according to claim 6, which is characterized in that be provided in the support plate and the company
The corresponding through-hole of fishplate bar.
9. press fitting of piston pin device according to claim 6, which is characterized in that the telescopic end is provided with u-bracket, institute
The both ends for stating first rotating shaft are connected with the two sidewalls of the u-bracket respectively, and the first end is located at the opening of the u-bracket
In；One end on the transmission shaft far from the centering pressure head is provided with U-shaped fixed frame, the both ends of second shaft respectively with
The both side plate of the U-shaped fixed frame is connected, and the second strip slide opening is between two side plates.
10. press fitting of piston pin device according to any one of claims 1 to 9, which is characterized in that the gear connects to be set in protrusion
It is equipped with the confined planes for abutting against with piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611042166.5A CN106624733B (en) | 2016-11-23 | 2016-11-23 | A kind of press fitting of piston pin device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611042166.5A CN106624733B (en) | 2016-11-23 | 2016-11-23 | A kind of press fitting of piston pin device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106624733A CN106624733A (en) | 2017-05-10 |
| CN106624733B true CN106624733B (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611042166.5A Active CN106624733B (en) | 2016-11-23 | 2016-11-23 | A kind of press fitting of piston pin device |
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| CN (1) | CN106624733B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109175942B (en) * | 2018-11-15 | 2023-06-06 | 大连德欣新技术工程有限公司 | Piston connecting rod assembling device |
| CN109759985B (en) * | 2018-12-29 | 2024-02-27 | 三一汽车制造有限公司 | Concrete piston dismounting tool |
| CN110587270A (en) * | 2019-09-26 | 2019-12-20 | 天永机械电子（太仓）有限公司 | Piston pin press-fitting device |
| CN110936139A (en) * | 2019-12-18 | 2020-03-31 | 瑞安市瑞海机电有限公司 | Ball bearing is with demolising device |
| CN113732664B (en) * | 2021-08-17 | 2022-06-24 | 重庆吉伶机械配件有限公司 | A press dismouting to be used for new energy automobile to mix moving engine piston pin and put |
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| CN201493656U (en) * | 2009-09-11 | 2010-06-02 | 大连智云自动化装备股份有限公司 | Press mounting device for bushing |
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| CN204094434U (en) * | 2014-07-29 | 2015-01-14 | 浙江吉利罗佑发动机有限公司 | A kind of valve split collets press-loading device |
| CN106112478A (en) * | 2016-07-19 | 2016-11-16 | 芜湖哈特机器人产业技术研究院有限公司 | EPB centrepin press-fitting tool |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104150338B (en) * | 2014-08-08 | 2016-05-18 | 江苏蒙哥马利电梯有限公司 | A kind of flywheel replaces the method for counterweight test escalator stopping power |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201493656U (en) * | 2009-09-11 | 2010-06-02 | 大连智云自动化装备股份有限公司 | Press mounting device for bushing |
| CN202943415U (en) * | 2012-09-25 | 2013-05-22 | 上海众力投资发展有限公司 | Clamp for simultaneously mounting two bushes in pressing mode |
| CN203209941U (en) * | 2013-03-20 | 2013-09-25 | 河南森源电气股份有限公司 | Device for fitting elastic cylindrical pin in half-shaft pin hole in a pressing way |
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| CN106624733A (en) | 2017-05-10 |
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