CN102705329A - Pin shaft, mounting structure of pin shaft and concrete pumping equipment - Google Patents
Pin shaft, mounting structure of pin shaft and concrete pumping equipment Download PDFInfo
- Publication number
- CN102705329A CN102705329A CN2012101944938A CN201210194493A CN102705329A CN 102705329 A CN102705329 A CN 102705329A CN 2012101944938 A CN2012101944938 A CN 2012101944938A CN 201210194493 A CN201210194493 A CN 201210194493A CN 102705329 A CN102705329 A CN 102705329A
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- bearing pin
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- 238000005086 pumping Methods 0.000 title claims abstract description 14
- 230000000694 effects Effects 0.000 claims description 12
- 238000010008 shearing Methods 0.000 claims description 10
- 238000009826 distribution Methods 0.000 claims description 7
- 230000009471 action Effects 0.000 claims description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 4
- 238000005452 bending Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 9
- 239000007787 solid Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 208000020442 loss of weight Diseases 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 208000016261 weight loss Diseases 0.000 description 2
- 239000013585 weight reducing agent Substances 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Images
Classifications
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/02—Conveying or working-up concrete or similar masses able to be heaped or cast
- E04G21/04—Devices for both conveying and distributing
- E04G21/0418—Devices for both conveying and distributing with distribution hose
- E04G21/0445—Devices for both conveying and distributing with distribution hose with booms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Pivots And Pivotal Connections (AREA)
- Component Parts Of Construction Machinery (AREA)
Abstract
The invention provides a pin shaft, a mounting structure of the pin shaft and concrete pumping equipment. The hinge pin is divided into a plurality of areas along the axial direction, the areas comprise a first area which is only affected by bending moment during working, the hinge pin comprises a plurality of openings which are positioned in the first area and are arranged along the radial direction of the hinge pin, and the plurality of openings extend along the axial direction of the hinge pin in the first area. The invention reduces the weight of the pin shaft by utilizing the opening arranged on the side wall of the pin shaft, lightens the labor intensity and brings great convenience to the installation and the disassembly.
Description
Technical field
The present invention relates to the manufacture field of bearing pin, more specifically, relate to the mounting structure and the concrete pumping equipment of a kind of bearing pin, bearing pin.
Background technique
In the existing technology, need two parts be coupled together through bearing pin usually, plant lotus with transmission.Jib with concrete mixer and concrete spreader is an example below, and the Placement of bearing pin is described.
As shown in Figure 1, jib comprises the first segment arm 200 ' and the second joint arm 300 ', and first segment arm 200 ' is connected through bearing pin 100 ' with the second joint arm 300 '.
Shown in Fig. 1-3, the second joint arm 300 ' comprises upper cover plate 310 ', lower cover plate 320 ', web 330 ' and sleeve block 340 '.Upper cover plate 310 ', lower cover plate 320 ' and web 330 ' are formed the box of encapsulation, and sleeve block 340 ' is installed on the web 330 ', connect through axle sleeve plate 350 ' between two sleeve blocks 340 ', to strengthen the stability of sleeve block 340 '.Bearing pin 100 ' is connected with sleeve block 340 ' through axle sleeve 360 ', in case the generation in process in relative rotation of shotpin axle 100 ', sleeve block 340 ' is worn and torn.Wherein, bearing pin 100 ' couples together jib structure and connecting rod 400 ', thereby gives connecting rod 400 ' with the jib loading transfer.In addition, be provided with clamp 370 ', can bearing pin 100 ' be blocked, come off to prevent it through clamp 370 ' at the end face of bearing pin 100 '.
Because what bearing pin 100 ' of the prior art adopted is solid shaft, therefore has following shortcoming:
(1) because in the linear distribution of moment of flexure effect lower section stress, and big more from neutrosphere stress far away, the stress in the zone that the decentre layer is nearer is lower, so material is not fully utilized.Special when bearing pin is longer, bearing pin is heavy (for example can reach the hundreds of kilogram) especially, is unfavorable for the boom system loss of weight, also is not easy to installation and removal simultaneously, and labor intensity is big.
(2) because the degree of depth of the quenching of bearing pin and hardening and tempering process is limited, when the diameter of solid pin was bigger, integral yield intensity can reduce greatly.
Summary of the invention
The present invention aims to provide the mounting structure and the concrete pumping equipment of a kind of bearing pin, bearing pin, to solve the problem that bearing pin weight is big, installing/dismounting is inconvenient, labor intensity is big in the existing technology.
For solving the problems of the technologies described above; According to a first aspect of the invention; A kind of bearing pin is provided, and bearing pin axially is divided into a plurality of zones along it, only receives the first area of the effect of moment of flexure when the zone comprises work; Bearing pin comprise a plurality of be positioned at the first area, along the opening of radially offering of bearing pin, and a plurality of opening extending axially along bearing pin in the first area.
Further, a plurality of openings intersect and the formation cavity in the inside of bearing pin.
Further, a plurality of openings are along the circumferential distribution of bearing pin.
Further, a plurality of openings circumferentially evenly distributing along bearing pin.
Further, the number of opening is n, and wherein n is the natural number more than or equal to 2, and the diameter of bearing pin is D, and the width of opening is d, and the degree of depth of opening is H, then
Further, the zone also comprises second area, and second area comprises body and is arranged on intrinsic axis central part.
Further, second area bears shearing action and moment of flexure effect simultaneously when work.
Further, body and axis central part are one-body molded.
Further, body removably is connected with axis central part.
Further, axis central part is threaded with body, interference is connected or weld.
Further, axis central part is provided with the hole.
According to a second aspect of the invention, a kind of mounting structure of bearing pin is provided, has comprised first link and second link, first link is connected through bearing pin with second link, and this bearing pin is above-mentioned bearing pin.
Further, bearing pin passes the side arm of first link and second link, and the sidewall of first link and second link is arranged on the position of the axis central part of bearing pin.
Further, first link and second link are the joint arms of concrete pumping equipment.
According to a third aspect of the present invention, a kind of concrete pumping equipment is provided, has comprised jib, jib comprises a plurality of joint arms, and adjacent two joint arms connect through bearing pin, and this bearing pin is above-mentioned bearing pin.
Utilization of the present invention is arranged on the weight that opening on the sidewall of bearing pin has reduced bearing pin, has alleviated labor intensity, brings great convenience to installing/dismounting.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 schematically shown concrete mixer of the prior art and material distributing machine jib be connected schematic representation;
Fig. 2 has schematically shown the A-A sectional view of Fig. 1;
Fig. 3 has schematically shown the B-B sectional view of Fig. 2;
Fig. 4 has schematically shown the simply supported beam model of bearing pin and the corresponding relation figure of shearing and moment of flexure thereof;
Fig. 5 has schematically shown the section stress distribution map when bearing pin receives to bend;
Fig. 6 has schematically shown the structural representation of the bearing pin among first embodiment who adopts the bearing pin among the present invention;
Fig. 7 has schematically shown the left view of Fig. 5;
Fig. 8 has schematically shown the schematic representation when among Fig. 5 axis central part not being installed;
Fig. 9 has schematically shown the structural representation of the bearing pin among second embodiment who adopts bearing pin among the present invention;
Figure 10 has schematically shown the structural representation of first kind of axis central part;
Figure 11 has schematically shown the structural representation of second kind of axis central part;
Figure 12 has schematically shown the structural representation of the third axis central part;
Figure 13 has schematically shown the structural representation of the bearing pin among the 3rd embodiment who adopts bearing pin among the present invention;
Figure 14 has schematically shown the sectional view of the bearing pin with three openings; And
Figure 15 has schematically shown the sectional view of the bearing pin with four openings.
Embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
As first aspect of the present invention, a kind of bearing pin is provided.Like Fig. 6, shown in 7 and 13; Bearing pin 100 axially is divided into a plurality of zones along it; When comprising work, this zone only receives the first area of the effect of moment of flexure; Bearing pin 100 comprise a plurality of be positioned at the first area, along the opening of radially offering 170 of bearing pin 100, and a plurality of opening 170 extending axially along bearing pin in the first area.Utilization of the present invention is arranged on the weight that opening on the sidewall of bearing pin has reduced bearing pin, has alleviated labor intensity, brings great convenience to installing/dismounting.
Fig. 4 shows the simply supported beam model of bearing pin and the corresponding relation figure of shearing and moment of flexure thereof.Wherein, structure shown in Figure 2 can be reduced to the simply supported beam shown in (a) part among Fig. 4, and wherein, P is load, and the fulcrum that the end of simply supported beam is equivalent between 400 ', two ends of connecting rod is equivalent to sleeve block 340 '.Further, (b) among Fig. 4 receiving the shearing force diagram of doing the time spent of load P for this simply supported beam, (c) receiving the bending moment diagram of doing the time spent of load P for simply supported beam.Can be known that by Fig. 4 the partial L 1 between connecting rod 400 ' and the sleeve block 340 ' receives the acting in conjunction of shearing and moment of flexure, the partial L 2 between two sleeve blocks 340 ' only receives the effect of moment of flexure PL1.Can know by the mechanics of materials, as shown in Figure 5, the linear distribution of the section stress under the moment of flexure effect, and big more from neutrosphere C stress far away.
Please combine Fig. 2; The shearing region of high stress appears in the two ends of solid pin (being that sleeve block 340 ' is located); The tension and compression stress region of high stress appears in the circumferential outer surface zone between two sleeve blocks 340 ', and the central axis ambient stress is lower, and material is not fully used; In addition, the stress of the left and right end of bearing pin is lower.So can consider central axis and both ends of the surface stress lower region material are excavated (being hollow out).
Preferably, a plurality of openings 170 intersect and formation cavity 120 in the inside of bearing pin 100.Certainly, opening 170 also can not be to connect each other, can play the purpose of weight reduction equally.Preferably, a plurality of openings 170 are along the circumferential distribution of bearing pin 100, and preferably, a plurality of openings 170 circumferentially evenly distribute along bearing pin 100.Preferably, a plurality of openings 170 are along the radially setting of bearing pin.Preferably, the number of opening 170 is 3 (please refer to Figure 14) or 4 (please refer to Figure 15).Preferably, opening 170 extending axially along sidewall.Can adopt mode, opening 170 is opened on the solid pin, thereby when the inside of solid pin forms cavity 120, form opening 170 the direct hollow out of solid pin outer surface.Preferably, the material of the part that the decentre axle of bearing pin is near more must be many more by hollow out, and decentre axis place far away must be lacked by hollow out more.Like this, not only remove material more than needed, alleviated the quality of bearing pin, also guaranteed to have favorable manufacturability.
The present invention can pass through to form the mode of a plurality of openings easily on the shank of bearing pin, form cavity 120 at the middle part of shank, thereby alleviated the weight of bearing pin, has improved the stressing conditions of bearing pin, has reduced labor intensity, and installing/dismounting gets up very convenient.
In a preferred embodiment, shown in figure 14, the number of opening 170 is n, and wherein n is the natural number more than or equal to 2, and the diameter of bearing pin 100 is D, and the width of opening 170 is d, and the degree of depth of opening 170 is H, then
Through the degree of depth of reasonable control opening 170, can control the size of cavity 120, thus the intensity and the weight of the openwork part of control bearing pin.
Preferably, the first area only receives the effect of moment of flexure.Preferably, this zone also comprises second area, and second area comprises body and is arranged on intrinsic axis central part 130.Second area bears shearing action and moment of flexure effect simultaneously when work.That is to say that cavity 120 is arranged on the position that only receives the moment of flexure effect of bearing pin 100.The position that axis central part 130 receives shearing and moment of flexure effect when being arranged on bearing pin 100.Especially, the number of the first area of the number of cavity 120 and axis central part 130 and bearing pin 100 and second area is corresponding.For example, bearing pin 100 has two first areas, and the number of cavity 120 is two so.Further, as shown in Figure 6, be formed with oil duct 140 on the bearing pin.
The present invention utilizes axis central part 130 opposing shearing load, utilizes cavity 120 The corresponding area opposing bending load, thereby makes the material of bearing pin obtain Optimal Distribution, has realized reducing the purpose of bearing pin weight.For example, can effectively alleviate the weight of bearing pin more than 60%.In addition, it is hollow utilizing the bearing pin among the present invention, can make the inner and outer surface of bearing pin all obtain modified fully and quenching, thereby improve the intensity of axis central part, has therefore increased the bulk strength of bearing pin.
In Fig. 6 and an embodiment shown in Figure 7, body removably is connected with axis central part 130.For example, be formed for installing the mounting hole 150 of axis central part 130 on the body, mounting hole 150 is communicated with cavity 120.That is to say that axis central part 130 can be used as independent parts and is fixed in the mounting hole 150, thereby be formed on the end of cavity 120.Preferably, axis central part 130 is threaded with body (particularly mounting hole 150), interference is connected or welding etc.For example, can in mounting hole 150, process tapped hole, then axis central part 130 is installed to the inside of mounting hole 150 through screw thread, so that dismantle.After axis central part 130 is installed to mounting hole 150, form recess 180 in the end of mounting hole 150.This recess 180 can be arranged on the position corresponding to the end cap of bearing pin, has alleviated weight on the one hand, has improved the stress situation on the other hand.Simultaneously,, can make bearing pin 100 have sidewall, therefore can the yield strength of bearing pin reduced owing to the quenching and the hardening and tempering process degree of depth of bearing pin are limited than minimal thickness owing to adopted mounting hole 150.During installation, can earlier lock shaft be assembled on the jib, then axis central part 130 be installed in the mounting hole 150, and form recess 180, thereby alleviate the labor intensity of assembling and dismounting at two ends.
Preferably, please refer to Fig. 8 and Fig. 9, mounting hole 150 forms limited part 160 with the crossover position of cavity 120.Because limited part 160 position that can limit axis central part 130 better, make it can be because of stressed axial float along bearing pin 100.Simultaneously, when installing, installation personnel also is easy to through limited part 160 axis central part 130 is in place.Preferably, limited part 160 can be a step, and especially, this step can be the chamfering formula, also can be radiused.
Preferably, as shown in Figure 9, assembling for ease, oil duct are arranged or loss of weight, can the diameter of cavity 120 pairing side arms be designed to less than the pairing diameter of axis central part, and the external frame that is about to bearing pin is designed to dumbbell shaped.
Axis central part 130 can be a solid construction, also can be hollow-core construction.Figure 10-12 shows the structural representation of the axis central part 130 of three kinds of multi-form hollow-core constructions, and axis central part 130 is provided with hole 131.Wherein, the axis central part 130 among Figure 10 is hollow cylindrical structures, and the axis central part 130 among Figure 11 is the hollow cylindrical structures with conical surface 132, and the axis central part 130 among Figure 12 is the hollow cylindrical structures with cambered surface 133.Adopt hollow-core construction, can be so that the oil duct design, and can weight reduction.
Preferably, among the embodiment shown in Figure 13, axis central part 130 is integrally formed with body.In the present embodiment, therefore axis central part 130 direct forming, have easy, the advantages of high strength of processing on bearing pin 100.In addition, adopt integrally formed mode, can when guaranteeing favorable manufacturability (for example, avoided welding procedure, because bearing pin material welding performance is poor, the intensity after the welding can not guarantee), guarantee that bearing pin has the intensity of mother metal.
Preferably, shown in figure 13, the end of bearing pin 100 is provided with recess 180.This recess 180 can be arranged on the position corresponding to the end cap of bearing pin, has alleviated weight on the one hand, has improved the stress situation on the other hand.
Especially; Use the bearing pin among the present invention to can be applicable to (particularly concrete mixer and concrete spreader) in the concrete equipment; For example, being connected etc. between being connected between arm and the arm, connecting rod and the arm is so that give another parts with the loading transfer of parts.
As second aspect of the present invention, a kind of mounting structure of bearing pin is provided, comprise first link and second link, first link is connected through bearing pin with second link, and this bearing pin is the bearing pin among above-mentioned each embodiment.Preferably, bearing pin passes the side arm of first link and second link, and the sidewall of first link and second link is arranged on the position of the axis central part 130 of bearing pin.Preferably, first link and said second link joint arm that is concrete pumping equipment.Especially, first link and second link are not limited to the joint arm in the concrete pumping equipment, also are not limited to the concrete pumping equipment field.So long as need two parts in the machinery, all can be considered first link and second link among the present invention through the bearing pin connection.
As the 3rd aspect of the present invention, a kind of concrete pumping equipment is provided, comprise jib, jib comprises a plurality of joint arms, and adjacent two joint arms connect through bearing pin, and this bearing pin is the bearing pin among above-mentioned each embodiment.Especially, concrete pumping equipment can be a concrete mixer etc.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (15)
1. bearing pin; It is characterized in that; Said bearing pin (100) axially is divided into a plurality of zones along it; Only receive the first area of the effect of moment of flexure when said zone comprises work, said bearing pin (100) comprise a plurality of be positioned at said first area, along the opening of radially offering (170) of said bearing pin (100), and said a plurality of opening (170) in said first area along the extending axially of said bearing pin.
2. bearing pin according to claim 1 is characterized in that, said a plurality of openings (170) intersect and formation cavity (120) in the inside of said bearing pin (100).
3. bearing pin according to claim 1 is characterized in that, said a plurality of openings (170) are along the circumferential distribution of said bearing pin (100).
4. bearing pin according to claim 3 is characterized in that, said a plurality of openings (170) circumferentially evenly distribute along said bearing pin (100).
5. bearing pin according to claim 2 is characterized in that, the number of said opening (170) is n, and wherein n is the natural number more than or equal to 2, and the diameter of said bearing pin (100) is D, and the width of said opening (170) is d, and the degree of depth of said opening (170) is H, then
6. bearing pin according to claim 1 is characterized in that said zone also comprises second area, and said second area comprises body and is arranged on said intrinsic axis central part (130).
7. bearing pin according to claim 6 is characterized in that, said second area bears shearing action and moment of flexure effect simultaneously when work.
8. bearing pin according to claim 6 is characterized in that, said body and said axis central part (130) are one-body molded.
9. bearing pin according to claim 6 is characterized in that, said body removably is connected with said axis central part (130).
10. bearing pin according to claim 9 is characterized in that, said axis central part (130) is threaded with said body, interference is connected or weld.
11. bearing pin according to claim 9 is characterized in that, said axis central part (130) is provided with hole (131).
12. the mounting structure of a bearing pin comprises first link and second link, said first link is connected through bearing pin with said second link, it is characterized in that, said bearing pin is each described bearing pin among the claim 1-11.
13. according to the said mounting structure of claim 12; It is characterized in that; Said bearing pin passes the side arm of said first link and said second link, and the sidewall of said first link and said second link is arranged on the position of the axis central part (130) of said bearing pin.
14., it is characterized in that the joint arm that said first link and said second link are concrete pumping equipments according to claim 12 or 13 said mounting structures.
15. a concrete pumping equipment comprises jib, said jib comprises a plurality of joint arms, and adjacent two said joint arms connect through bearing pin, it is characterized in that said bearing pin is each described bearing pin among the claim 1-11.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194493.8A CN102705329B (en) | 2012-06-13 | 2012-06-13 | Pin shaft, mounting structure of pin shaft and concrete pumping equipment |
| PCT/CN2012/085865 WO2013185447A1 (en) | 2012-06-13 | 2012-12-04 | Pin shaft, pin shaft mounting structure, and concrete pumping apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210194493.8A CN102705329B (en) | 2012-06-13 | 2012-06-13 | Pin shaft, mounting structure of pin shaft and concrete pumping equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102705329A true CN102705329A (en) | 2012-10-03 |
| CN102705329B CN102705329B (en) | 2014-05-21 |
Family
ID=46898321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210194493.8A Active CN102705329B (en) | 2012-06-13 | 2012-06-13 | Pin shaft, mounting structure of pin shaft and concrete pumping equipment |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102705329B (en) |
| WO (1) | WO2013185447A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185447A1 (en) * | 2012-06-13 | 2013-12-19 | 中联重科股份有限公司 | Pin shaft, pin shaft mounting structure, and concrete pumping apparatus |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE112014007199A5 (en) * | 2014-11-20 | 2017-08-03 | Schwing Gmbh | Mast arm with lever mechanism |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330658A (en) * | 1986-07-25 | 1988-02-09 | Yamaha Motor Co Ltd | Piston pin of engine |
| JPH0821361A (en) * | 1994-07-08 | 1996-01-23 | Iwata Air Compressor Mfg Co Ltd | Piston pin of oil free type reciprocating compressor |
| JP2005042907A (en) * | 2003-07-10 | 2005-02-17 | Nissan Motor Co Ltd | Pin connecting structure for link mechanism |
| JP2010242817A (en) * | 2009-04-02 | 2010-10-28 | Aisin Keikinzoku Co Ltd | Integrally molded propeller shaft |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705329B (en) * | 2012-06-13 | 2014-05-21 | 中联重科股份有限公司 | Pin shaft, mounting structure of pin shaft and concrete pumping equipment |
-
2012
- 2012-06-13 CN CN201210194493.8A patent/CN102705329B/en active Active
- 2012-12-04 WO PCT/CN2012/085865 patent/WO2013185447A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6330658A (en) * | 1986-07-25 | 1988-02-09 | Yamaha Motor Co Ltd | Piston pin of engine |
| JPH0821361A (en) * | 1994-07-08 | 1996-01-23 | Iwata Air Compressor Mfg Co Ltd | Piston pin of oil free type reciprocating compressor |
| JP2005042907A (en) * | 2003-07-10 | 2005-02-17 | Nissan Motor Co Ltd | Pin connecting structure for link mechanism |
| JP2010242817A (en) * | 2009-04-02 | 2010-10-28 | Aisin Keikinzoku Co Ltd | Integrally molded propeller shaft |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013185447A1 (en) * | 2012-06-13 | 2013-12-19 | 中联重科股份有限公司 | Pin shaft, pin shaft mounting structure, and concrete pumping apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102705329B (en) | 2014-05-21 |
| WO2013185447A1 (en) | 2013-12-19 |
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