CN1209536C - Pipeline fitting device for sliding arm - Google Patents
Pipeline fitting device for sliding arm Download PDFInfo
- Publication number
- CN1209536C CN1209536C CN 01124490 CN01124490A CN1209536C CN 1209536 C CN1209536 C CN 1209536C CN 01124490 CN01124490 CN 01124490 CN 01124490 A CN01124490 A CN 01124490A CN 1209536 C CN1209536 C CN 1209536C
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- CN
- China
- Prior art keywords
- arm
- travelling arm
- inner webs
- webs
- flexible
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Actuator (AREA)
- Supports For Pipes And Cables (AREA)
- Shovels (AREA)
- Component Parts Of Construction Machinery (AREA)
- Manipulator (AREA)
Abstract
The invention provides a piping device for a slide arm, enabling the miniaturizing and lightening of an arm without damaging a rubber hose for a hydraulic actuator provided inside the arm. The piping device includes a hydraulic actuator 14 attached to the front end of the inner arm 10 of the slide arm, and the hydraulic hose 21 for the actuator which is provided inside the inner arm 10 via an outer arm 2 and which is connected to the hydraulic actuator 14, the outer arm 2 having the inner arm 10 fitted thereinside. A flexible hose guide and support device 22 for guiding the hydraulic hose 21 is provided inside the inner arm 10. A predetermined portion of the fixed side of the flexible hose guide and support device 22 is mounted to a telescoping cylinder provided inside the inner arm 10 for telescoping the slide arm.
Description
Technical field
Establish the oil pressure piping arrangement of the cylindrical body travelling arm of transmission device in the present invention relates to, particularly the working rig of building machinery etc. is with the oil pressure piping arrangement of travelling arm.
Background technology
The working rig that is connected at building machinery etc. is with the mobile lateral terminal parts of the pipe arrangement of the transmission device of travelling arm leading section and be installed on the processing method oil pressure flexible pipe, when arm is flexible of fixation side end fitting of the oil gear pipe arrangement of outer webs, has adopted the whole bag of tricks at present.
Its first example is the method that is disclosed in Japanese Patent Publication 62-25826 communique, and Fig. 5 is the structure chart of oil pressure piping connection 40 that is disclosed in the telescopic arm of above-mentioned Japanese Patent Publication 62-25826 communique.Among this figure, the leading section of the cantilever 42 of oil pressure shovel 41 is equipped with the retractile travelling arm 43 of long stroke syllogic that is made of outer webs 44, intermediate arm 45 and inner webs 46.Leading section in inner webs 46 is equipped with the oil hydraulic actuator 48 that drives excavating tools 47.Be connected in the pipe arrangement 50 on the oil hydraulic actuator 48 and be located at inner webs 46, be set with the mobile lateral terminal parts 51 of pipe arrangement 50 in the rearward end of inner webs 46.Rearward end in outer webs 44 is equipped with lifting gear 52 and hose reeling device 54, wherein said lifting gear 52 makes inner webs 46 and intermediate arm 45 flexible, and hose reeling device 54 makes the transmission device that is connected with the mobile lateral terminal parts 51 of pipe arrangement 50 open corresponding to inner webs 46 flexible with rubber hose 53 and reel.Hose reeling device 54 is connected with not shown hydraulic machine and drives on the fixation side end fitting that is connected with oil gear.
Fig. 6 is the structure chart of second example, is the structure chart of oil pressure piping connection 60 of telescopic arm that is disclosed in another embodiment of above-mentioned Japanese Patent Publication 62-25826 communique.Give prosign with the identical parts of Fig. 5 explanation, and omit its explanation, different parts only is described.Rearward end at intermediate arm 45 is provided with hose-reel 61.The transmission device that is connected at the fixation side end fitting 62 of not shown oil gear of outer webs 44 leading sections and mobile lateral terminal parts 51 with rubber hose 53 packages on hose-reel 61.Thus, even travelling arm 43 flexible transmission devices are not flexible with flexible pipe 53 yet, can not bring any obstacle.
Fig. 7 is the side cut away view of the existing travelling arm 70 of the 3rd example.Among Fig. 7, on the outer webs 71 on the cantilever 42 that is installed on construction vehicle etc., intercalation elastically has inner webs 72.Outer webs 71 and inner webs 72 are linked by pin 4,4 by being located at the telescopic drive cylinder 3 in the inner webs 72.Fig. 7 shows dwindles telescopic drive cylinder 3, makes travelling arm 70 be in the shortest state.Excavating tools (scraper bowl etc.) is installed on the working rig carriage 12 that is fixedly set in inner webs 72 leading sections with freely rotating.In the front portion of inner webs 72, be provided with the oil hydraulic actuator 14 that drives excavating tools 11.The base end part of oil hydraulic actuator 14 is installed on the inner webs 72 by connecting pin 15, and leading section is attached on the excavating tools 11 by linkage 16.The terminal of the oil pressure pipe arrangement 17 of oil hydraulic actuator 14 is connected on the mobile lateral terminal parts 73 that are fixedly set in inner webs 72 rearward end.Drive the rearward end that the oil pressure pipe arrangement 30 that is connected with oil gear is fixedly set in outer webs 71 with not shown hydraulic machine, the fixation side end fitting 74 of its terminal is positioned at the place ahead of mobile lateral terminal parts 73.Mobile lateral terminal parts 73 are connected with rubber hose 75 by transmission device with fixation side end fitting 74.Mobile lateral terminal parts 73 are connected by trochanter 76 with rubber hose 75 with transmission device.
The travelling arm 70 of Fig. 8 presentation graphs 7 is in the longest state.Among Fig. 8, when making telescopic drive cylinder 3 be elongated to maximum, inner webs 72 is slided along outer webs 71, and it is the longest that travelling arm 70 is elongated to.At this moment, mobile lateral terminal parts 73 move along with the preceding of inner webs 72 and then to the place ahead of fixation side end fitting 74, and therebetween, transmission device is deformed to the state that almost stretches with rubber hose 75 its crooked states.
State during the travelling arm 70 of Fig. 9 presentation graphs 7 slides on the way, Figure 10 is the D-D sectional drawing of Fig. 9.As shown in figure 10, the section configuration of outer webs 71 and inner webs 72 is rectangles.In Fig. 9, Figure 10, transmission device is out of shape with rubber hose 75 in the way of sliding, and a part rises to the left and right sides position of telescopic drive cylinder 3.
But, in above-mentioned prior art constructions, have following problems and problem.
In first example, owing to will have the rearward end that the hose reeling device 54 of labyrinth is installed in outer webs 44, so complicated integral structure, weight is big, cost is high.
In second example, owing to the rearward end that hose-reel 61 is located at intermediate arm 45, so the shape of outer webs 44 becomes greatly, weight is big, cost is high.
In the 3rd example, along with moving forward and backward of inner webs 72, transmission device is out of shape with rubber hose 75, and its part rises to the left and right sides position of telescopic drive cylinder 3.Therefore, as shown in figure 10, might contact and produce damage with telescopic drive cylinder 3 and inner webs 72.Especially, in recent years, in the operation horn of building machinery etc., for weight reduction, thereby improve performance, improve the visual field and simplified structure, proposed to form the scheme of as shown in figure 11 section travelling arm 77 roughly triangular in shape by a sheet metal material bending to reduce cost.In this case, when making transmission device make its part rise to telescopic drive cylinder 3 left and right sides positions as mentioned above with rubber hose 75 distortion, shown in the double dot dash line of Figure 11, disturb friction or be clipped in the possibility that produces damage between the two with parts such as telescopic drive cylinder 3 and inner webs 78 to uprise.Therefore, demand seeking a kind of pipe arrangement processing method urgently, so that transmission device does not sustain damage with rubber hose 75 in inner webs 78.
Summary of the invention
The present invention is conceived to the problems referred to above and problem and develops, and its purpose is, a kind of piping arrangement of travelling arm is provided, and the oil hydraulic actuator of being located in can not damaging in the arm makes arm realize miniaturization with rubber hose, and can alleviate the weight of arm.
To achieve these goals, the piping arrangement of travelling arm of the present invention comprises: oil hydraulic actuator, be installed on the leading section of the inner webs of travelling arm, and this travelling arm constitutes a plurality of tubular arms with long stroke multisection type intercalation elastically successively;
Transmission device oil pressure flexible pipe is located in the inner webs via the outer webs of interpolation inner webs, is connected with oil hydraulic actuator;
Its flexible hose guided bearing device that can crooked protect movably/lead with the oil pressure flexible pipe transmission device of the piping arrangement of this travelling arm is located in the inner webs.
According to said structure, because transmission device is located in the inner webs with the flexible hose guided bearing device that the oil pressure flexible pipe leads, so can in whole movable range, lead reliably by the described oil pressure flexible pipe to distortion when travelling arm is flexible, it is not contacted with miscellaneous part.Particularly, though be under the leg-of-mutton situation, might the oil pressure flexible pipe can be out of shape and upwarp at the section of travelling arm, with oil hydraulic actuator and inner webs friction or be clipped between the two, but, according to the present invention, this can be prevented trouble before it happens, can prevent the damage of oil pressure flexible pipe, improve its durability.And, thus, by travelling arm being made as the section triangle, and use the present invention, can realize small-sized, the lightweight of arm, can improve its rigidity, expand its visual field.In addition, because it is simple in structure, so can reduce cost.
In the piping arrangement of the travelling arm of said structure,
Also can will make the flexible telescopic drive cylinder of travelling arm be located in the inner webs, the regulation position of the fixation side of flexible hose guided bearing device is installed on this telescopic drive cylinder.
According to this structure, the regulation position of the fixation side of flexible hose guided bearing device is installed on the telescopic drive cylinder.Thus, the height setting of the movable range of flexible hose guided bearing device can be got higher, thereby can increase the radius of curvature of flexible hose guided bearing device, be applied to transmission device with on the oil pressure flexible pipe not make excessive bending load.In addition, make flexible hose guided bearing device described fixation side the installation position respectively with the front position of the long status of travelling arm and short status mobile side end corresponding, flexible hose guided bearing device and back-end location between roughly in the middle of.Therefore, utilize flexible hose guided bearing device in its movable range, reliably transmission device to be led with the oil pressure flexible pipe and to protect.In addition, the special supporting member of flexible hose guided bearing device need be set near the outer webs rearward end, can obtain the piping arrangement of travelling arm simple in structure, with low cost.
Description of drawings
Fig. 1 is to use the side cut away view of short status of the travelling arm of piping arrangement of the present invention;
Fig. 2 is that the P portion of Fig. 1 describes enlarged drawing in detail;
Fig. 3 is the A-A sectional drawing of Fig. 1;
Fig. 4 is to use the side cut away view of long status of the travelling arm of piping arrangement of the present invention;
Fig. 5 is the structure chart of piping arrangement of the travelling arm of existing first example;
Fig. 6 is the structure chart of piping arrangement of the travelling arm of existing second example;
Fig. 7 is to use the side cut away view of short status of travelling arm of the piping arrangement of existing the 3rd example;
Fig. 8 is to use the side cut away view of long status of travelling arm of the piping arrangement of existing the 3rd example;
Fig. 9 is to use the side cut away view of elongation midvoyage condition of travelling arm of the piping arrangement of existing the 3rd example;
Figure 10 is the D-D sectional drawing of Fig. 9;
Figure 11 is that transmission device under the situation of three angle sections arms is with the key diagram of the interference of rubber hose.
The specific embodiment
Describe the embodiment of the piping arrangement of travelling arm of the present invention with reference to the accompanying drawings in detail.
Fig. 1 is to use the side cut away view of the travelling arm 1 of piping arrangement of the present invention, and Fig. 2 is the detailed enlarged drawing of P portion of Fig. 1, and Fig. 3 is the A-A sectional drawing of Fig. 1.In Fig. 1～Fig. 3, intercalation elastically has the inner webs 10 of similar section configuration on the section that swinging up and down of building machinery etc. installed cantilever 42 freely outer webs 2 roughly triangular in shape.Inside upper part in inner webs 10 is equipped with the telescopic drive cylinder 3 that links outer webs 2 and inner webs 10 along its length.One end of telescopic drive cylinder 3 and the other end utilize respectively pin 4,4 be attached at freely rotating outer webs 2 rearward end and in be located on the boss on the inner webs 10.Rearward end in outer webs 2 is equipped with fixation side end fitting 5, is being connected with the oil pressure pipe arrangement 6,7 that is connected on the telescopic drive cylinder 3 on the fixation side end fitting 5.Driving the oil pressure pipe arrangement 30,31 that the oil gear of usefulness is connected with not shown hydraulic machine is connected on the fixation side end fitting 5.Leading section in inner webs 10 is set with the working rig carriage 12 that excavating tools (for example scraper bowl etc.) 11 has been installed.In being installed in, the base end part utilization pin 15 that drives the telescopic oil hydraulic actuators 14 such as oil pressure actuated cylinder of excavating tools 11 is located on the carriage 13 of front bottom of inner webs 10.The leading section of oil hydraulic actuator 14 is attached on the working rig 11 by linkage 16.Mobile lateral terminal parts 20 are installed in the rearward end of inner webs 10, and the pipe arrangement 17,18 of oil hydraulic actuator 14 is connected on the mobile lateral terminal parts 20.Fixation side end fitting 5 is connected with rubber hose 21 by transmission device with mobile lateral terminal parts 20.Transmission device is with being located in the rubber hose 21 on the flexible hose guided bearing device 22, and by its guiding.
Flexible hose guided bearing device 22 safety and flexible protection movably are connected cable, the flexible pipes of moving part, by being chain type guiding parts configuration example that the chain sigmoid links freely as being known as the flat column parts of cable bearing.The transmission device of flexible hose guided bearing device 22 protection distortion when inner webs 10 moves is with the part of rubber hose 21, and details is lifted on the regulation position P portion of fixation side on the telescopic drive cylinder 3 as described later.That is to say, as shown in Figures 2 and 3, to have the side see the installing plate 23 that is the L font with 24 peripheral parts that are fastened on telescopic drive cylinder 3, the chain part 22a of the regulation of flexible hose guided bearing device 22 is fastened on the horizontal installation portion in lower end of installing plate 23 with bolt 25.As Fig. 1, shown in Figure 3, crooked formation in the space below the telescopic drive cylinder 3 of flexible hose guided bearing device 22 in inner webs 10 even the radius of curvature R travelling arm of this moment 1 stretches also can be held.
Thereby Fig. 1 represents to make the telescopic drive cylinder to dwindle makes travelling arm 1 be in the shortest state.3 elongations make travelling arm 1 be in the longest state thereby Fig. 4 represents to make the telescopic drive cylinder.Among Fig. 4, by installing plate 23 described flexible hose guided bearing device 22 is installed in position P portion on the telescopic drive cylinder 3, is positioned at the position B that makes travelling arm 1 be in the most mobile lateral terminal parts 20 and makes travelling arm 1 be in the roughly intermediate point of the length direction of the position C that moves lateral terminal parts 20 when the longest.Like this, in the whole flexible scope of travelling arm 1, flexible hose guided bearing device 22 can support, protect transmission device rubber hose 21.
According to the present invention, as Fig. 1, shown in Figure 4, though travelling arm 1 is flexible,, transmission device is supported, is led by flexible hose guided bearing device 22 with rubber hose 21 therebetween.And radius of curvature R is held, so transmission device can not contact and damage with the miscellaneous parts such as interior face of telescopic drive cylinder 3 and inner webs 10 with rubber hose 21 in flexible.Therefore, be located at the durability of the oil pressure flexible pipe of inner webs 10 in can improving reliably.
In addition, resemble under travelling arm 1 section situation roughly triangular in shape as, even its inner space is narrow and small, also can improve the durability of oil pressure flexible pipe as mentioned above.Thus, can realize the lightweight of arm, and improve performance, but expanded field of vision also can easily constitute travelling arm simple in structure, with low cost by rigidity.
Claims (2)
1, a kind of piping arrangement of travelling arm comprises: oil hydraulic actuator, be installed on the leading section of the inner webs of travelling arm, and this travelling arm constitutes a plurality of tubular arms with long stroke multisection type intercalation elastically successively;
Transmission device oil pressure flexible pipe is located in the described inner webs via the outer webs of the described inner webs of interpolation, is connected with described oil hydraulic actuator;
It is characterized in that, the flexible hose guided bearing device that described transmission device can crooked be protected movably/lead with the oil pressure flexible pipe is located in the described inner webs.
2, the piping arrangement of travelling arm as claimed in claim 1 is characterized in that,
The flexible telescopic drive cylinder of described travelling arm is located in the described inner webs, and the regulation position of the fixation side of described flexible hose guided bearing device is installed on the described telescopic drive cylinder,
Described regulation position is positioned at the slidingtype arm and is in the most in short-term mobile lateral terminal position component and the slidingtype arm intermediate point that is positioned at the length direction of the mobile lateral terminal position component when the longest.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000232319A JP2002046092A (en) | 2000-07-31 | 2000-07-31 | Piping device for slide arm |
| JP232319/2000 | 2000-07-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1336471A CN1336471A (en) | 2002-02-20 |
| CN1209536C true CN1209536C (en) | 2005-07-06 |
Family
ID=18725017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01124490 Expired - Fee Related CN1209536C (en) | 2000-07-31 | 2001-07-31 | Pipeline fitting device for sliding arm |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2002046092A (en) |
| CN (1) | CN1209536C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4687172B2 (en) * | 2005-03-18 | 2011-05-25 | コベルコクレーン株式会社 | Telescopic boom |
| JP5016546B2 (en) * | 2008-04-18 | 2012-09-05 | 株式会社タグチ工業 | Telescopic boom |
| JP5490749B2 (en) * | 2011-04-28 | 2014-05-14 | 日立建機株式会社 | Cable / hose support protection device mounting structure, cable / hose support protection device and converter brick slab demolition machine |
| JP5703511B2 (en) * | 2012-02-16 | 2015-04-22 | 日立建機株式会社 | Telescopic rod and deep excavator |
| CN107785821A (en) * | 2016-08-24 | 2018-03-09 | 向荣集团有限公司 | A kind of layer-stepping channel-type cable bridge |
| EP3425123B1 (en) * | 2017-07-06 | 2021-09-01 | BAUER Maschinen GmbH | Boom for a construction machine |
| KR101935761B1 (en) | 2017-07-21 | 2019-01-04 | 안주신 | Quick coupler |
-
2000
- 2000-07-31 JP JP2000232319A patent/JP2002046092A/en active Pending
-
2001
- 2001-07-31 CN CN 01124490 patent/CN1209536C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JP2002046092A (en) | 2002-02-12 |
| CN1336471A (en) | 2002-02-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050706 Termination date: 20130731 |