CN102493971B - Pin shaft, pin inserting and pulling hydraulic cylinder and pin inserting and pulling device - Google Patents
Pin shaft, pin inserting and pulling hydraulic cylinder and pin inserting and pulling device Download PDFInfo
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- CN102493971B CN102493971B CN201110357484.1A CN201110357484A CN102493971B CN 102493971 B CN102493971 B CN 102493971B CN 201110357484 A CN201110357484 A CN 201110357484A CN 102493971 B CN102493971 B CN 102493971B
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 3
- 229910052802 copper Inorganic materials 0.000 description 3
- 239000010949 copper Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
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Abstract
The invention discloses a pin shaft, a pin and/or pin pulling hydraulic cylinder and a pin and/or pin pulling device, wherein the hydraulic cylinder (10) is used for inserting and/or pulling out a pin shaft (20), the hydraulic cylinder (10) comprises a cylinder barrel (11) and a piston rod (12), the piston rod (12) can be connected with the pin shaft (20), and the connection position can be adjusted along the axial direction of the pin shaft (20). The pin shaft is driven to move downwards or upwards by extending or retracting the hydraulic cylinder, and then the hydraulic cylinder can be extended or retracted again by axially adjusting the connecting position of the pin shaft and the hydraulic cylinder, so that the pin shaft can be pulled or inserted in a pin pulling or inserting mode by taking the stroke of the hydraulic cylinder as a unit.
Description
Technical field
The present invention relates to the plug of the bearing pin connecting different parts, particularly, relate to a kind of inserted pin oil hydraulic cylinder and comprise the pin inserting-pulling device of this inserted pin oil hydraulic cylinder.
Background technique
In engineering machinery, usually use the parts that pinned connection is larger.Such as, along with the continuous progress of hoist technology, tonnage is also increasing, is the needs of satisfied traveling, and the parts such as principal arm want energy easy disassembly, and this base part is all by pinned connection usually.
In prior art, particularly when dismantling bearing pin, generally adopting the instrument such as hammer, pin puller to operate, comparatively wasting time and energy.Such as, during dismounting, generally firmly impact bearing pin with the copper rod that weight is larger in bearing pin side, the inertia huge by copper rod produces thrust, thus is little by little removed by bearing pin.Make copper rod produce motion, the manual labor of operator must be relied on, namely use Manual-pushing.In addition, the mounting point of some parts is higher (more than 3.5 meters), and the mounting point of corresponding bearing pin (such as principal arm pin) is also higher, carries out the significantly operation of health, have very large danger under this height.In addition, the hoist that tonnage is larger, some bearing pins (such as principal arm pin) are more thick longer, and be removed, need very large impact force, labor intensity strengthens further.
Summary of the invention
The object of this invention is to provide a kind of convenient operation, save the inserted pin oil hydraulic cylinder of manpower.
To achieve these goals, the invention provides a kind of inserted pin oil hydraulic cylinder (hereinafter referred to as oil hydraulic cylinder), this oil hydraulic cylinder is used for inserting and/or extracting bearing pin, described oil hydraulic cylinder comprises cylinder barrel and piston rod, wherein, described piston rod can with described pinned connection and link position can along the axial adjustment of described bearing pin.
The present invention also provides a kind of bearing pin, wherein, the rod-like element that described bearing pin comprises bearing pin main body and stretches out from this bearing pin main body one end, described rod-like element can rotate relative to described bearing pin subject freedom but can not relative to described bearing pin main body moving axially along described bearing pin, and described rod-like element can be connected with oil hydraulic cylinder and link position can along the axial adjustment of described bearing pin.
The present invention also provides a kind of pin inserting-pulling device, this pin inserting-pulling device comprises bearing pin and the oil hydraulic cylinder for inserting and/or extract described bearing pin, described oil hydraulic cylinder comprises cylinder barrel and piston rod), wherein, the rod-like element that described bearing pin comprises bearing pin main body and stretches out from this bearing pin main body one end, described rod-like element can rotate relative to described bearing pin subject freedom but can not relative to described bearing pin main body moving axially along described bearing pin, and described rod-like element can be connected with described piston rod and link position can along the axial adjustment of described bearing pin.
Pass through technique scheme, the link position of bearing pin and oil hydraulic cylinder is adjustable vertically, make oil hydraulic cylinder stretch out or retraction pin axially lower or move up, then the link position of axial adjustment bearing pin and oil hydraulic cylinder is passed through, oil hydraulic cylinder can be made again to stretch out or retract, thus make bearing pin carry out pulling pin or latch in units of the stroke of oil hydraulic cylinder.Therefore, oil hydraulic cylinder of the present invention not only easy-to-operat, and greatly save manpower.
Other features and advantages of the present invention are described in detail in embodiment part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to provide a further understanding of the present invention, and forms a part for specification, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the sectional view of a kind of mode of execution that inserted pin oil hydraulic cylinder of the present invention is described, wherein, bearing pin is for connecting turntable and the arm of hoist, and Fig. 1 is the view that the direction overlooked relative to turntable and arm is observed;
Fig. 2 to Fig. 6 is the schematic diagram of the operation of pulling pin of a kind of mode of execution that pin inserting-pulling device of the present invention is described.
Description of reference numerals
10: oil hydraulic cylinder
11: cylinder barrel 12: piston rod 13: end cap 14: adpting flange
20: bearing pin
21: bearing pin main body 21a: spherical crown shape dimple 22: rod-like element 23: bulb
24: the second joining portion 25: bolt 26: fixed plate
30: rotating handles 31: shape body 32: handle portion 33: the first joining portion
40: protection end cap
100: turntable 110: joint 200: arm
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in detail.Should be understood that, embodiment described herein, only for instruction and explanation of the present invention, is not limited to the present invention.
In the present invention, when not doing contrary explanation, the noun of locality such as " upper and lower, left and right " of use typically refers to reference to upper and lower, left and right shown in the drawings; " inside and outside " refers to profile inside and outside relative to each parts itself.In addition, herein, the position of the part be bonded with each other of " link position " stylus pin axle and oil hydraulic cylinder, comprises the link position of piston rod and rod-like element; " link position can along the axial adjustment of bearing pin " represents that the relative position of the part be bonded with each other of bearing pin and oil hydraulic cylinder can change, that is, piston rod and rod-like element can engaging along in the axial certain limit of pin.
A kind of inserted pin oil hydraulic cylinder is provided according to an aspect of the present invention, this oil hydraulic cylinder 10 is for inserting and/or extracting bearing pin 20, described oil hydraulic cylinder 10 comprises cylinder barrel 11 and piston rod 12, wherein, described piston rod 12 can be connected with described bearing pin 20 and link position can along the axial adjustment of described bearing pin 20.
Oil hydraulic cylinder 10 of the present invention is with the difference of traditional inserted pin oil hydraulic cylinder, use oil hydraulic cylinder 10 of the present invention to carry out multi-step latch or pull pin operation time, without the need in each latch or the part be not connected with bearing pin 20 of mobile hydraulic cylinder 10 after pulling pin, only can need again carry out latch or operation of pulling pin by the link position (namely making piston rod 12 and bearing pin 20 that relative movement occurs) of regulator solution cylinder pressure 10 and bearing pin 20.Therefore, latch or when pulling pin, only manually need carry out the operation regulating link position, greatly reduce artificial work, improve efficiency.
Particularly, by making bearing pin 20 be connected with piston rod 12, oil hydraulic cylinder 10 is stretched out from original state or retracts to drive bearing pin 20 to move.Then, by regulating the link position of bearing pin 20 and piston rod 12 vertically, oil hydraulic cylinder 10 can be made to get back to original state, thus make when oil hydraulic cylinder 10 again stretches out or retracts bearing pin 20 continue to move with oil hydraulic cylinder 10, namely carry out pulling pin or latch in units of the stroke of oil hydraulic cylinder 10.
Wherein, the relative status at the two ends (cylinder barrel 11 and piston rod 12) of oil hydraulic cylinder 10 when original state refers to and can carry out latch or pull pin.Such as, when by making piston rod 12 complete latch from the state transformation stretched out to retracted mode or pull pin, then original state is the state that piston rod 12 stretches out.
It will be appreciated by persons skilled in the art that and the link position of bearing pin 20 and piston rod 12 can be made adjustable vertically by various suitable mode.Such as, resetting means can be set in oil hydraulic cylinder 10, and piston rod 12 removably can be connected with the different piece of the axis along bearing pin 20 of bearing pin 20.By piston rod 12 can vertically regulating piston bar 12 relative to the position of bearing pin 20, the i.e. link position of regulating piston bar 12 and bearing pin 20 vertically, thus connect bearing pin 20 and piston rod 12 when needs make bearing pin 20 move with piston rod 12, the connection of bearing pin 20 and piston rod 12 is removed when needing to make oil hydraulic cylinder 10 reset.Such as, this removably connecting can be realized by Electromagnetic Control.
In a preferred embodiment of the invention, described bearing pin 20 and described piston rod 12 can be made to have the screw thread of coupling mutually respectively, thus realize the connection that can regulate vertically of bearing pin 20 and piston rod 12 with simple screw connection structure.Particularly, can rotate relative to bearing pin 20 by making piston rod 12, making the movement of link position generation along bearing pin 20 axis of bearing pin 20 and piston rod 12.
In a preferred embodiment of the invention, described piston rod 12 can be hollow-core construction and have internal thread, and the end of described bearing pin 20 can have the outside thread mated with described internal thread.By this layout, when complete a latch or pull pin operation time, relative rotation can be there is with bearing pin 20 by making piston rod 12, because cylinder barrel 11 and bearing pin 20 keep motionless along the axis of bearing pin 20, thus described relative rotation makes piston rod 12 moving axially along bearing pin 20, namely link position is regulated, again to carry out latch or operation of pulling pin.Selectively, the end of bearing pin 20 also can be made to be hollow-core construction and to have internal thread, and piston rod 12 has the outside thread mated with described internal thread.
For making piston rod 12 rotate relative to bearing pin 20, can artificial rotary-piston bar 12, such as rotary-piston bar 12 expose can operative section, to move axially relative to bearing pin 20 to make piston rod 12 and get back to the original state that can again stretch out or retract.Preferably, as shown in Figure 1, described oil hydraulic cylinder 10 can comprise rotating handles 30, this rotating handles 30 comprises shape body 31 and is positioned at handle portion 32 and first joining portion 33 at these shape body 31 two ends, described shape body 31 and described first joining portion 33 can be set in described piston rod 12 (namely shape body 31 and the first joining portion 33 can be moved in piston rod 12), and described first joining portion 33 can be connected with described bearing pin 20 and synchronous axial system.Wherein, the first joining portion 33 can engage with rod-like element 22 described below, to drive rod-like element 22 to rotate, makes piston rod 12 counterrotating with rod-like element 22 screw-thread fit, thus makes piston rod 12 relative to rod-like element 22 moving axially along bearing pin 20.More preferably, the end sleeve of described piston rod 12 is provided with end cap 13, departs from described piston rod 12 to limit described first joining portion 33.In addition, described handle portion 32 can be provided with the handle installing hole for installing rotatable handle, thus by rotating rotatable handle, can rotate rotating handles 30 effortlessly.In addition, described piston rod 12 can run through described cylinder barrel 11, to arrange rotating handles 30.
In addition, described oil hydraulic cylinder 10 can comprise adpting flange 14, and this adpting flange 14 is for being installed to installation foundation by described oil hydraulic cylinder 10, thus when guaranteeing at latch or pull pin, oil hydraulic cylinder 10 entirety is not moved.In the mode of execution shown in Fig. 1, oil hydraulic cylinder 10 is connected with bearing pin 20 by piston rod 12, therefore adpting flange 14 can be arranged on cylinder barrel 11, thus carries out latch or operation of pulling pin when cylinder barrel 11 is fixing.
For ease of carrying out latch and pulling pin operation, described oil hydraulic cylinder 10 can be double-acting hydraulic cylinder, i.e. the stretching out and retract and can both be realized by oil hydraulic cylinder 10 self of piston rod 11.
According to a further aspect in the invention, a kind of bearing pin being suitable for above-mentioned oil hydraulic cylinder is provided.The rod-like element 22 that described bearing pin 20 comprises bearing pin main body 21 and stretches out from this bearing pin main body 21 one end, described rod-like element 22 can rotate freely relative to described bearing pin main body 21 but can not relative to described bearing pin main body 21 moving axially along described bearing pin 20, and described rod-like element 22 can be connected with oil hydraulic cylinder 10 and link position can along the axial adjustment of described bearing pin 20.
In a preferred embodiment of the invention, described rod-like element 22 and described oil hydraulic cylinder 10 can be made to have the screw thread of coupling mutually respectively, thus realize the connection that can regulate vertically of rod-like element 22 and oil hydraulic cylinder 10 with simple screw connection structure.Particularly, can rotate relative to rod-like element 22 by making oil hydraulic cylinder 10, making the movement of link position generation along bearing pin 20 axis of rod-like element 22 and oil hydraulic cylinder 10.
Preferably, described rod-like element 22 has outside thread.Thus, oil hydraulic cylinder 10 can be threadedly attached to rod-like element 22, and realizes the attachment portion of oil hydraulic cylinder 10 and the relative movement vertically of rod-like element 22 by rotating rod-like element 22, namely regulates link position.
Move to axial for ease of realizing rotate freely and limit it relative with bearing pin main body 21 of above-mentioned rod-like element 22, bearing pin 20 can adopt the preferred structure of the present invention, as shown in Figure 2, there is in described bearing pin main body 21 spherical crown shape dimple 21a, one end of described rod-like element 22 has the bulb 23 mated with described spherical crown shape dimple 21a, described rod-like element 22 and described bearing pin main body 21 are by fastening piece axial restraint, and the other end of described rod-like element 22 has the second joining portion 24 coordinated with described first joining portion 33.By this layout, at latch or when pulling pin, rod-like element 24 can rotate freely relative to bearing pin main body 21.Guarantee that axial relative movement can not occur for rod-like element 22 and bearing pin main body 21 simultaneously.
Wherein, as shown in Figure 2, bearing pin main body 21 and rod-like element 24 can realize axial restraint by bolt 25 and fixed plate 26.Wherein, fixed plate 26 is provided with fastener hole and can backstop bulb 23 but allow the through hole that other parts of rod-like element 24 are passed through, thus axial restraint bearing pin main body 21 and rod-like element 24 and limit moving to axial of rod-like element 22 and bearing pin main body 21, but do not limit relatively rotating of rod-like element 22 and bearing pin main body 21.
By the cooperation of spherical crown shape dimple 21a and bulb 23, the bond stability of bearing pin main body 21 and rod-like element 22 can be strengthened while realizing relatively rotating freely.
According to a further aspect in the invention, a kind of pin inserting-pulling device is provided, this pin inserting-pulling device comprises bearing pin 20 and the oil hydraulic cylinder 10 for inserting and/or extract described bearing pin 20, and wherein, described bearing pin 20 can be connected with described oil hydraulic cylinder 10 and link position can along the axial adjustment of described bearing pin 20.
The difference of pin inserting-pulling device of the present invention and traditional pin inserting-pulling device is, use oil hydraulic cylinder 10 of the present invention to carry out multi-step latch or pull pin operation time, without the need in each latch or the part be not connected with bearing pin 20 of mobile hydraulic cylinder 10 after pulling pin, only can need again carry out latch or operation of pulling pin by the link position of regulator solution cylinder pressure 10 and bearing pin 20.
Particularly, by making bearing pin 20 be connected with oil hydraulic cylinder 10, oil hydraulic cylinder 10 is stretched out from original state or retracts to drive bearing pin 20 to move.Then, by regulating the link position of bearing pin 20 and oil hydraulic cylinder 10 vertically, oil hydraulic cylinder 10 can be made to get back to original state, thus make when oil hydraulic cylinder 10 again stretches out or retracts bearing pin 20 continue to move with oil hydraulic cylinder 10, namely carry out pulling pin or latch in units of the stroke of oil hydraulic cylinder 10.
Wherein, the relative status at the two ends (cylinder barrel 11 and piston rod 12) of oil hydraulic cylinder 10 when original state refers to and can carry out latch or pull pin.Such as, when by making piston rod 12 complete latch from the state transformation stretched out to retracted mode or pull pin, then original state is the state that piston rod 12 stretches out.
It will be appreciated by persons skilled in the art that and the link position of bearing pin 20 and oil hydraulic cylinder 10 can be made adjustable vertically by various suitable mode.Such as, resetting means can be set in oil hydraulic cylinder 10, and oil hydraulic cylinder 10 removably can be connected with the different piece of the axis along bearing pin 20 of bearing pin 20, thus connect bearing pin 20 and oil hydraulic cylinder 10 when needs make bearing pin 20 move with oil hydraulic cylinder 10, the connection of bearing pin 20 and oil hydraulic cylinder 10 is removed when needing to make oil hydraulic cylinder 10 reset.Such as, this removably connecting can be realized by Electromagnetic Control.
In a preferred embodiment of the invention, described bearing pin 20 and described oil hydraulic cylinder 10 can be made to have the screw thread of coupling mutually respectively, thus realize the connection that can regulate vertically of bearing pin 20 and oil hydraulic cylinder 10 with simple screw connection structure.Particularly, can rotate relative to bearing pin 20 by making the attachment portion of oil hydraulic cylinder 10, making the movement of link position generation along bearing pin 20 axis of bearing pin 20 and oil hydraulic cylinder 10.
Wherein, bearing pin 20 can have suitable structure, is threaded to be formed with oil hydraulic cylinder 10.Preferably, as shown in Figure 2, the rod-like element 22 that described bearing pin 20 can comprise bearing pin main body 21 and stretch out from this bearing pin 21 main body one end, one end of described rod-like element 22 can be connected with one end of described oil hydraulic cylinder 10 and link position can regulate along the length direction of described rod-like element 22.
In addition, oil hydraulic cylinder 10 can be connected with rod-like element 22 with in piston rod 12 by cylinder barrel 11, for this reason, the part be connected with rod-like element 22 of cylinder barrel 11 or piston rod 12 can be made to have screw thread.
In a preferred embodiment of the invention, piston rod 12 can be used to be connected with rod-like element 22.Particularly, described piston rod 12 can run through described cylinder barrel 11, and described piston rod 12 can be hollow-core construction and have internal thread, and the end of described rod-like element 22 can have the outside thread mated with described internal thread.By this layout, when complete a latch or pull pin operation time, relative rotation can be there is with rod-like element 22 by making piston rod 12, because cylinder barrel 11 and bearing pin main body 21 (and rod-like element 22) keep motionless along the axis of bearing pin 20, thus describedly piston rod 12 is moved, again to carry out latch or operation of pulling pin along the axis (i.e. the axis of rod-like element 22) of bearing pin 20 relative to rotation.Selectively, the end of rod-like element 22 also can be made to be hollow-core construction and to have internal thread, and piston rod 12 has the outside thread mated with described internal thread.
For making piston rod 12 rotate relative to bearing pin 20, can artificial rotary-piston bar 12, such as rotary-piston bar 12 expose can operative section, to move axially relative to bearing pin 20 to make piston rod 12 and get back to the original state that can again stretch out or retract.Preferably, as shown in Figure 1, wherein, described oil hydraulic cylinder 10 can comprise rotating handles 30, this rotating handles 30 comprises shape body 31 and is positioned at handle portion 32 and first joining portion 33 at these shape body 31 two ends, described shape body 31 and described first joining portion can be set in described piston rod 12 (namely shape body 31 and the first joining portion 33 can be moved in piston rod 12), and described first joining portion 33 can engage with one end of described rod-like element 22.By this layout, because the first joining portion 33 can engage with rod-like element 22, thus drive rod-like element 22 rotates by rotating handles 30, makes the rod-like element 22 of screw-thread fit, with piston rod 12, relative rotation occur.Because cylinder barrel 11 and bearing pin main body 21 (and rod-like element 22) keep motionless along the axis of bearing pin 20, thus described relative rotation makes piston rod 12 relative to rod-like element 22 moving axially along bearing pin 20.More preferably, the end sleeve of described piston rod 12 is provided with end cap 13, departs from described piston rod 12 to limit described first joining portion 33.
In use, bearing pin 20 is for connecting different parts, and such as, in the mode of execution shown in Fig. 2 to Fig. 4, bearing pin 20 is for connecting turntable 100 and the arm 200 of hoist.Bearing pin main body 21 can not rotate.For ease of realizing above-mentioned relative rotation, bearing pin 20 can adopt the preferred structure of the present invention, as shown in Figure 2, there is in described bearing pin main body 21 spherical crown shape dimple 21a, one end of described rod-like element 22 has the bulb 23 mated with described spherical crown shape dimple 21a, described rod-like element 22 and described bearing pin main body 21 are by fastening piece axial restraint, and the other end of described rod-like element 22 has the second joining portion 24 coordinated with described first joining portion 33.By this layout, at latch or when pulling pin, rod-like element 24 can rotate freely relative to bearing pin main body 21 but relative to bearing pin main body 21, axial relative movement can not occur.Guarantee that bearing pin main body 21 can not rotate relative to turntable 100 and arm 200 simultaneously.
Wherein, as shown in Figure 2, bearing pin main body 21 and rod-like element 24 can realize axial restraint by bolt 25 and fixed plate 26.Wherein, fixed plate 26 is provided with fastener hole and can backstop bulb 23 but allow the through hole that other parts of rod-like element 24 are passed through, thus axial restraint bearing pin main body 21 and rod-like element 24 and limit moving to axial of rod-like element 22 and bearing pin main body 21, but do not limit relatively rotating of rod-like element 22 and bearing pin main body 21.
By the cooperation of spherical crown shape dimple 21a and bulb 23, the bond stability of bearing pin main body 21 and rod-like element 22 can be strengthened while realizing relatively rotating freely.
In addition, the first joining portion 33 and the second joining portion 24 can be formed as various suitable matching structure, and such as, the first joining portion 33 can have interior hexagonal structure, and the second joining portion 24 can have the outer hexagonal structure coordinated with described interior hexagonal structure.Certainly, the second joining portion 24 also can be made to have interior hexagonal structure, and make the first joining portion 33 have the outer hexagonal structure coordinated with described interior hexagonal structure
In addition, described oil hydraulic cylinder 10 can comprise adpting flange 14, and this adpting flange 14 is for being installed to installation foundation by described oil hydraulic cylinder 10, thus when guaranteeing at latch or pull pin, oil hydraulic cylinder 10 entirety is not moved.In the mode of execution shown in Fig. 1, oil hydraulic cylinder 10 is connected with bearing pin 20 by piston rod 12, therefore adpting flange 14 can be arranged on cylinder barrel 11, thus carries out latch or operation of pulling pin when cylinder barrel 11 is fixing.
Wherein, in the mode of execution shown in Fig. 2 to Fig. 4, turntable 100 comprises joint 110, and this joint 110 has the through hole for installing bearing pin 20, and joint 110 can as the installation foundation of oil hydraulic cylinder 10.Particularly, oil hydraulic cylinder 10 can be installed to the end of joint 110 by adpting flange 14.When using bearing pin 20 to connect turntable 100 and arm 200, the end of bearing pin 20 can be protected by the protection end cap 40 being sealed on the end of joint 110, and moving axially of bearing pin 20 can be prevented.When oil hydraulic cylinder 10 installed by needs, protection end cap 40 can be removed, and by adpting flange 14, oil hydraulic cylinder 10 is installed to the end of joint 110.
For ease of carrying out latch and pulling pin operation, described oil hydraulic cylinder 10 can be double-acting hydraulic cylinder, i.e. the stretching out and retract and can both be realized by oil hydraulic cylinder 10 self of piston rod 11.
The operation of pulling pin of a kind of preferred implementation of pin inserting-pulling device of the present invention is described below in conjunction with Fig. 2 to Fig. 4.
Figure 2 shows that the structure being connected turntable 100 and arm 200 before pulling pin by bearing pin 20.Wherein, joint 110 and arm 200 have corresponding pin-and-hole, and it is also spacing by protection end cap 40 that bearing pin 20 inserts pin-and-hole.
Figure 3 shows that oil hydraulic cylinder 10 is installed on turntable 100 also to prepare to carry out the structural representation operated of pulling pin.Wherein, cylinder barrel 11 is fixed on joint 110 by adpting flange 14, and the first joining portion 33 is fixedly connected with the second joining portion 24, and oil hydraulic cylinder 10 is in original state (in the illustrated embodiment, original state is the state that piston rod 12 is retracted, and namely piston rod 12 is positioned at top dead center).
Figure 4 shows that the structural representation after operation of once pulling pin.Wherein, piston rod 12 stretches out and drives the bearing pin 20 be connected with piston rod 12 outwards to extract certain distance, and this distance depends on the distance that piston rod 12 stretches out.Stretch out state shown in from the original state shown in Fig. 3 to Fig. 4, piston rod 12 moves to lower dead center from top dead center, and bearing pin 20 has outwards extracted the ultimate range of once pulling pin, i.e. the stroke of piston rod 12.
Figure 5 shows that piston rod 12 is retracted and prepares the structural representation operated of next time pulling pin.Wherein, from the state shown in Fig. 4, carry out rotating handles 30 by turning handle hand 32, drive rod-like element 22 to rotate simultaneously.Because bearing pin main body 21 limits moving axially of rod-like element 22, adpting flange 14 limits moving axially of cylinder barrel 11, and thus the rotation of rod-like element 22 causes piston rod 12 moving axially and being retracted into original state along bearing pin 20.In Figure 5, piston rod 12 is retracted into its top dead center.
Figure 6 shows that piston rod 12 second time is stretched out and carries out pulling pin for the second time the structural representation after operating.Wherein, by stretching out piston rod 12 to its lower dead center, bearing pin 20 is made to extract again the distance of a stroke.
By repeatedly carrying out operation (namely stretching out the link position of piston rod 12 and regulating piston bar 12 and rod-like element 22) of pulling pin, can finally extract bearing pin 20.Latch operation is contrary with the above-mentioned step that operates of pulling pin, and does not elaborate at this.
Below the preferred embodiment of the present invention is described in detail by reference to the accompanying drawings; but; the present invention is not limited to the detail in above-mentioned mode of execution; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technological scheme of the present invention, these simple variant all belong to protection scope of the present invention.Such as, cylinder barrel 11 can be made to be connected with bearing pin 20, or the adjustment of link position can be realized by artificial rotary-piston bar 12.
It should be noted that in addition, each the concrete technical characteristics described in above-mentioned embodiment, in reconcilable situation, can be combined by any suitable mode.In order to avoid unnecessary repetition, the present invention illustrates no longer separately to various possible compound mode.
In addition, also can carry out combination in any between various different mode of execution of the present invention, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.
Claims (13)
1. an inserted pin oil hydraulic cylinder, this oil hydraulic cylinder (10) is for inserting and/or extracting bearing pin (20), described oil hydraulic cylinder (10) comprises cylinder barrel (11) and piston rod (12), it is characterized in that, described piston rod (12) can be connected with described bearing pin (20) and link position can along the axial adjustment of described bearing pin (20), described piston rod (12) is for hollow-core construction and have internal thread, described oil hydraulic cylinder (10) comprises rotating handles (30), this rotating handles (30) comprises shape body (31) and is positioned at handle portion (32) and the first joining portion (33) at this shape body (31) two ends, described shape body (31) and described first joining portion (33) can be set in described piston rod (12), described first joining portion (33) can be connected with described bearing pin (20) and synchronous axial system.
2. inserted pin oil hydraulic cylinder according to claim 1, wherein, described piston rod (12) runs through described cylinder barrel (11).
3. inserted pin oil hydraulic cylinder according to claim 2, wherein, the end sleeve of described piston rod (12) is provided with end cap (13), departs from described piston rod (12) to limit described first joining portion (33).
4. inserted pin oil hydraulic cylinder according to claim 2, wherein, described handle portion (32) is provided with the handle installing hole for installing rotatable handle.
5. inserted pin oil hydraulic cylinder according to claim 1, wherein, described oil hydraulic cylinder (10) comprises adpting flange (14), and this adpting flange (14) is for being installed to installation foundation by described oil hydraulic cylinder (10).
6. inserted pin oil hydraulic cylinder according to claim 1, wherein, described oil hydraulic cylinder (10) is double-acting hydraulic cylinder.
7. a bearing pin, it is characterized in that, the rod-like element (22) that described bearing pin (20) comprises bearing pin main body (21) and stretches out from this bearing pin main body (21) one end, described rod-like element (22) can rotate freely relative to described bearing pin main body (21) but can not relative to described bearing pin main body (21) moving axially along described bearing pin (20), described rod-like element (22) can be connected with oil hydraulic cylinder (10) and link position can along the axial adjustment of described bearing pin (20), described rod-like element (22) has outside thread, in described bearing pin main body (21), there is spherical crown shape dimple (21a), one end of described rod-like element (22) has the bulb (23) mated with described spherical crown shape dimple (21a), described rod-like element (22) and described bearing pin main body (21) are by fastening piece axial restraint, the other end of described rod-like element (22) has the second joining portion (24).
8. a pin inserting-pulling device, this pin inserting-pulling device comprises bearing pin (20) and the oil hydraulic cylinder (10) for inserting and/or extract described bearing pin (20), described oil hydraulic cylinder (10) comprises cylinder barrel (11) and piston rod (12), it is characterized in that, the rod-like element (22) that described bearing pin (20) comprises bearing pin main body (21) and stretches out from this bearing pin main body (21) one end, described rod-like element (22) can rotate freely relative to described bearing pin main body (21) but can not relative to described bearing pin main body (21) moving axially along described bearing pin (20), described rod-like element (22) can be connected with described piston rod (12) and link position can along the axial adjustment of described bearing pin (20), wherein, described piston rod (12) is for hollow-core construction and have internal thread, described rod-like element (22) has the outside thread mated with described internal thread, described oil hydraulic cylinder (10) comprises rotating handles (30), this rotating handles (30) comprises shape body (31) and is positioned at handle portion (32) and the first joining portion (33) at this shape body (31) two ends, described shape body (31) and described first joining portion (33) can be set in described piston rod (12), described first joining portion (33) can engage with one end of described rod-like element (22), in described bearing pin main body (21), there is spherical crown shape dimple (21a), one end of described rod-like element (22) has the bulb (23) mated with described spherical crown shape dimple (21a), described rod-like element (22) and described bearing pin main body (21) are by fastening piece axial restraint, the other end of described rod-like element (22) has the second joining portion (24) coordinated with described first joining portion (33).
9. pin inserting-pulling device according to claim 8, wherein, described piston rod (12) can run through described cylinder barrel (11).
10. pin inserting-pulling device according to claim 8, wherein, the end sleeve of described piston rod (12) is provided with end cap (13), departs from described piston rod (12) to limit described first joining portion (33).
11. pin inserting-pulling devices according to claim 8, wherein, one in described first joining portion (33) and described second joining portion (24) comprises interior hexagonal structure, and another comprises the outer hexagonal structure mated with described interior hexagonal structure.
12. pin inserting-pulling devices according to claim 8, wherein, described oil hydraulic cylinder (10) comprises adpting flange (14), and this adpting flange (14) is for being installed to installation foundation by described oil hydraulic cylinder (10).
13. pin inserting-pulling devices according to claim 8, wherein, described oil hydraulic cylinder (10) is double-acting hydraulic cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110357484.1A CN102493971B (en) | 2011-11-11 | 2011-11-11 | Pin shaft, pin inserting and pulling hydraulic cylinder and pin inserting and pulling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110357484.1A CN102493971B (en) | 2011-11-11 | 2011-11-11 | Pin shaft, pin inserting and pulling hydraulic cylinder and pin inserting and pulling device |
Publications (2)
| Publication Number | Publication Date |
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| CN102493971A CN102493971A (en) | 2012-06-13 |
| CN102493971B true CN102493971B (en) | 2015-08-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110357484.1A Active CN102493971B (en) | 2011-11-11 | 2011-11-11 | Pin shaft, pin inserting and pulling hydraulic cylinder and pin inserting and pulling device |
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| Country | Link |
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| CN (1) | CN102493971B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102878172B (en) * | 2012-09-28 | 2015-01-14 | 三一重工股份有限公司 | Pin connector, frame and engineering machine |
| CN109570963B (en) * | 2018-10-18 | 2020-06-30 | 上海中联重科桩工机械有限公司 | Pin shaft plugging device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037753A (en) * | 1975-09-01 | 1977-07-26 | Thyssen Industrie Aktiengesellschaft | Container closure, especially for mixing containers |
| DE10049992A1 (en) * | 2000-10-10 | 2002-05-02 | Niemann Wolfgang | Stroke-adjustable pneumatic cylinder has hollow cylindrical piston rod with non-circular internal cross-section with threaded spindle passing coaxially through piston and piston rod |
| CN2728664Y (en) * | 2004-09-16 | 2005-09-28 | 李海泉 | Extruder and demould device of rod material hydraulic thermo head extrusion machine |
| CN201482969U (en) * | 2009-07-24 | 2010-05-26 | 烟台路通精密铝业有限公司 | Low-pressure casting machine |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2966793B2 (en) * | 1996-07-12 | 1999-10-25 | 津根精機株式会社 | Vise device |
-
2011
- 2011-11-11 CN CN201110357484.1A patent/CN102493971B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4037753A (en) * | 1975-09-01 | 1977-07-26 | Thyssen Industrie Aktiengesellschaft | Container closure, especially for mixing containers |
| DE10049992A1 (en) * | 2000-10-10 | 2002-05-02 | Niemann Wolfgang | Stroke-adjustable pneumatic cylinder has hollow cylindrical piston rod with non-circular internal cross-section with threaded spindle passing coaxially through piston and piston rod |
| CN2728664Y (en) * | 2004-09-16 | 2005-09-28 | 李海泉 | Extruder and demould device of rod material hydraulic thermo head extrusion machine |
| CN201482969U (en) * | 2009-07-24 | 2010-05-26 | 烟台路通精密铝业有限公司 | Low-pressure casting machine |
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| CN102493971A (en) | 2012-06-13 |
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