CN102900106A - Swing arm of skid steering loader - Google Patents
Swing arm of skid steering loader Download PDFInfo
- Publication number
- CN102900106A CN102900106A CN2012103708323A CN201210370832A CN102900106A CN 102900106 A CN102900106 A CN 102900106A CN 2012103708323 A CN2012103708323 A CN 2012103708323A CN 201210370832 A CN201210370832 A CN 201210370832A CN 102900106 A CN102900106 A CN 102900106A
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- arm
- swing arm
- section
- arm body
- steering loader
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Abstract
The invention discloses a swing arm of a skid steering loader. The swing arm comprises a left arm body, a right arm body, a cross beam, an upper arm body, a lower arm body and a connecting portion, wherein the cross beam is used for connecting the left arm body and the right arm body, the left arm body and the right arm body are in the same structure and are arranged symmetrically, the connecting portion is used for connecting the upper arm body and the lower arm body, the upper arm body is formed by welding of an outer side plate and an inner side plate, the cross section of the upper arm body is in a D shape, and the inner side plate can be made of a U-shaped steel which is formed by bending of a steel plate or a proper channel steel. The D-shape cross section is adopted, manufacturing processes of the swing arm are reduced, the number of welding joints is less than that of welding joints of swing arms having rectangular cross sections which are formed by welding of four side plates, machining processes of the swing arm are easier than those of swing arms having U-shaped cross sections, and the swing arm can not be cracked easily when bent.
Description
Technical field
The present invention relates to a kind of pantograph of loader, particularly a kind of movable arm of slippage shovel loader belongs to engineering machinery field.
Background technology
Glide steering loader is a kind of compact conformation, the loader of flexible movements, and its swing arm is one of main components of bearing load, the form of structure of swing arm has determined the size of its load stress-bearing capability and the complexity of manufacturing.The glide steering loader swing arm adopts square-section or U-shaped cross section usually at present, the square-section is by the welding of four block plates or shaped steel manufacturing, the complex process of welded type square-section swing arm, and shaped steel square-section swing arm are because steel section size is special, choose difficulty in market, and adopt shaped steel can only make the uniform section swing arm, and the waste material, U-shaped cross section generally is to form with steel plate bending, manufacture difficulty is large, also ftractures easily during bending.
Summary of the invention
It is little to the purpose of this invention is to provide a kind of manufacture difficulty, draws materials conveniently the swing arm of the glide steering loader of economical with materials and cost.
Technical scheme of the present invention is as follows:
A kind of glide steering loader swing arm comprises that left arm, right arm and connection be connected the crossbeam of left arm and described right arm; Described left arm and identical being arranged symmetrically with of described right arm structure; Described left arm and right arm comprise that respectively upper arm, underarm and connection be connected the connecting portion of upper arm and described underarm; Described upper arm is welded by outer panel and interior plate, and its shape of cross section is the D type.Owing to adopted D type cross section so that its manufacturing process reduces, reduced weld seam quantity compared with the swing arm that is welded the square-section that forms by four side plates, also greatly become different than the processing technology of U-shaped cross section swing arm, bending is not easy to crack.
The longitudinal cross-section of described upper arm is horn-like, and the height of close underarm one side is greater than the height of opposite side.As a further improvement on the present invention, its upper arm is made horn-like, becomes gradually greatly to the cross section with the underarm connecting portion from the upper arm free end, so more meets stressed needs, and has saved material.
In order further to reduce manufacture difficulty, the longitudinal cross-section height of described upper arm equates.
In order to realize " D " type structure and can to reduce manufacture difficulty, described interior plate is that to become cross section be that " Contraband " type or described interior plate are channel-section steel to steel plate bending.
Described outer panel extends upward the formation flange part, and described interior plate top is provided with fluid pressure line, and the height of described flange part is higher than the diameter of fluid pressure line.Outer panel comprises the flange part that exceeds interior plate, and it can be used to block the fluid pressure line that the upper arm top is arranged, it is attractive in appearance to be conducive to complete machine.
In order better to protect fluid pressure line, described fluid pressure line top can also be provided with cover plate, and described cover plate is dismountable to be fixed on the swing arm.
For the further swing arm rigidity of strengthening, complete machine aesthetic property, and the assembling of swing arm pipeline cover plate, the end of described flange part is crooked bending part.
Beneficial effect: the present invention has reduced the manufacture difficulty of swing arm, has saved material, has improved intensity and the aesthetics of whole swing arm; And can protect fluid pressure line to avoid the wearing and tearing of fluid pressure line and the risk that is smashed by junk.
Description of drawings
Fig. 1 is that sliding loader of the present invention is assemblied in the assembling schematic diagram on the complete machine;
Fig. 2 is structural representation of the present invention;
Fig. 3 is the cross-sectional view of first embodiment of the invention right arm upper arm;
Fig. 4 is the longitudinal section of first embodiment of the invention right arm upper arm;
Fig. 5 is the cross-sectional view of second embodiment of the invention right arm upper arm;
Fig. 6 is the cross-sectional view of third embodiment of the invention right arm upper arm;
Fig. 7 is the cross-sectional view of welded type square-section swing arm upper arm in the prior art;
Fig. 8 is the cross-sectional view of U-shaped cross section swing arm upper arm in the prior art.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, sliding loader comprises swing arm 1, driver's cabin 2, vehicle frame 3, motor 4, driving system 5, hydraulic system 6, a pair of boom cylinder 7, a pair of rotary ink tank 8, scraper bowl 9.Described swing arm 1 two ends are articulated in respectively vehicle frame 3 and scraper bowl 9; Be provided with a pair of rotary ink tank 8 between described swing arm 1 and the scraper bowl 9; Described boom cylinder 7 is articulated in respectively the middle part of vehicle frame 3 and swing arm 1.
Swing arm 1 comprises left arm 11, right arm 12 and is connected left arm 11 and the crossbeam of right arm 12 as shown in Figure 2; Left arm 11 and identical being arranged symmetrically with of right arm 12 structures, left arm 11 are connected with right arm and are comprised respectively upper arm 111, underarm 112 and be connected upper arm 111 and the connecting portion 113 of underarm 112; Be provided with for first pin shaft hole 114 hinged with vehicle frame 3 at an end of upper arm 111, end at underarm 112 is provided with for second pin shaft hole 115 hinged with scraper bowl, be provided with for three pin shaft hole 116 hinged with rotary ink tank 8 at described connecting portion 113, described upper arm 111 is welded by outer panel 1111 and interior plate 1112, interior plate 1112 is " Contraband " shaped steel or for channel-section steel for steel plate bending becomes cross section, the shape of cross section of described upper arm 111 is the D type, outer panel 1111 extends upward and forms flange part 1113, described interior plate 1112 tops are provided with fluid pressure line 1114, and the height of described flange part 1113 is higher than the diameter of fluid pressure line 1114; The longitudinal section of described upper arm is horn-like as shown in Figure 4, near described for the longitudinal section height dimension A of hinged the first pin shaft hole 114 of the vehicle frame 3 height dimension H less than upper arm 111 other ends.
So that its manufacturing process difficulty reduces, reduced weld seam quantity compared with the swing arm that is welded the square-section that forms by four side plates by having adopted D type cross section, compared the processing technology difficulty with the swing arm in U-shaped cross section and greatly reduce yet, bending is not easy to crack.Upper arm 111 is made horn-like, becomes gradually greatly to the cross section with underarm 112 connecting portions 113 from upper arm 111 ends, so more meets stressed needs, and has saved material.
The upper arm longitudinal section can also be rectangle in addition, and described height dimension A equates with described height dimension H.
Described flange part 1113 edges are gone up bending part 1116 can also be arranged along its length in addition owing to bending part 1116 is arranged so that the rigidity of swing arm 1 has obtained reinforcement, simultaneously fluid pressure line can better protected, more attractive in appearance.Certain described flange part 1113 and bending part 1116 are not necessary, and described upper arm 111 also can not comprise flange part 1113.
In addition to the implementation, the present invention can also have other embodiments, and all employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop in the protection domain of requirement of the present invention.
Claims (8)
1. a glide steering loader swing arm comprises left arm (11), right arm (12) and is connected described left arm (11) and the crossbeam (13) of described right arm (12); Described left arm (11) and identical being arranged symmetrically with of described right arm (12) structure; Described left arm (11) is connected 12 with right arm) comprise respectively upper arm (111), underarm (112) and be connected described upper arm (111) and the connecting portion (113) of described underarm (112); It is characterized in that: described upper arm (111) is welded by outer panel (1111) and interior plate (1112), and its shape of cross section is the D type.
2. glide steering loader swing arm as claimed in claim 1, it is characterized in that: the longitudinal cross-section of described upper arm (111) is horn-like, near the height of underarm (112) the one sides height greater than opposite side.
3. glide steering loader swing arm as claimed in claim 1 is characterized in that: the longitudinal cross-section height of described upper arm (111) equates.
4. such as claim 1 or 2 or 3 described glide steering loader swing arms, it is characterized in that: described interior plate (1112) is " Contraband " type for steel plate bending becomes cross section.
5. such as claim 1 or 2 or 3 described glide steering loader swing arms, it is characterized in that: described interior plate (1112) is channel-section steel.
6. such as claim 1 or 2 or 3 described glide steering loader swing arms, it is characterized in that: described outer panel (1111) extends upward and forms flange part (1113), described interior plate (1112) top is provided with fluid pressure line (1114), and the height of described flange part (1113) is higher than the diameter of fluid pressure line (1114).
7. glide steering loader swing arm as claimed in claim 6 is characterized in that: can also be provided with cover plate (1115), dismountable being fixed on the swing arm of described cover plate (1115) above the described fluid pressure line (1114).
8. glide steering loader swing arm as claimed in claim 7 is characterized in that: the end of described flange part (1113) is crooked bending part (1116).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103708323A CN102900106A (en) | 2012-09-29 | 2012-09-29 | Swing arm of skid steering loader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103708323A CN102900106A (en) | 2012-09-29 | 2012-09-29 | Swing arm of skid steering loader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102900106A true CN102900106A (en) | 2013-01-30 |
Family
ID=47572572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103708323A Pending CN102900106A (en) | 2012-09-29 | 2012-09-29 | Swing arm of skid steering loader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102900106A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525888A (en) * | 2008-02-29 | 2009-09-09 | 株式会社小松制作所 | A lift arm for a skid-steel loader |
| CN102249170A (en) * | 2011-07-15 | 2011-11-23 | 徐州徐工特种工程机械有限公司 | Main jib structure for fork installing machine |
| US20110299965A1 (en) * | 2010-06-04 | 2011-12-08 | Caterpillar Inc. | Lift Arm Assembly |
| CN202265376U (en) * | 2011-09-05 | 2012-06-06 | 徐州重型机械有限公司 | Fire engine and telescopic arm thereof |
| CN202989968U (en) * | 2012-09-29 | 2013-06-12 | 江苏柳工机械有限公司 | Swing arms of slip turning loading machine |
-
2012
- 2012-09-29 CN CN2012103708323A patent/CN102900106A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101525888A (en) * | 2008-02-29 | 2009-09-09 | 株式会社小松制作所 | A lift arm for a skid-steel loader |
| US20110299965A1 (en) * | 2010-06-04 | 2011-12-08 | Caterpillar Inc. | Lift Arm Assembly |
| CN102249170A (en) * | 2011-07-15 | 2011-11-23 | 徐州徐工特种工程机械有限公司 | Main jib structure for fork installing machine |
| CN202265376U (en) * | 2011-09-05 | 2012-06-06 | 徐州重型机械有限公司 | Fire engine and telescopic arm thereof |
| CN202989968U (en) * | 2012-09-29 | 2013-06-12 | 江苏柳工机械有限公司 | Swing arms of slip turning loading machine |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130130 |