CN202181194U - Main arm structure of fork device - Google Patents
Main arm structure of fork device Download PDFInfo
- Publication number
- CN202181194U CN202181194U CN2011202506787U CN201120250678U CN202181194U CN 202181194 U CN202181194 U CN 202181194U CN 2011202506787 U CN2011202506787 U CN 2011202506787U CN 201120250678 U CN201120250678 U CN 201120250678U CN 202181194 U CN202181194 U CN 202181194U
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- welded
- plate
- web
- main arm
- type main
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Abstract
The utility model relates to a main arm structure of a fork device, belonging to a main arm structure of engineering machinery. An upper cover board of an main arm is welded at the inner side of a U-shaped main arm plate to form a high-strength box body structure; second shaft sleeves are respectively welded at two sides of the rear surface of a wall board of the U-shaped main arm plate; a bending cover board is welded at one side of the rear surface of the wall board of the U-shaped main arm plate; a crescent plate is welded on the rear surface of a main shaft sleeve on the wall board of the U-shaped main arm plate; a rear web, a rear inner web and a fourth shaft sleeve are respectively welded at one side of the rear surface of the U-shaped main arm plate; a cylinder supporting plate is symmetrically welded on a left web and a right web plate; a third shaft sleeve is welded on the left web and the right web, a front lower rib plate is welded in the middle of a front side plate of the lower part of the front end of the U-shaped main arm plate. The main arm structure has the advantages that by adopting the combination of the U-shaped main arm plate and the upper cover board, weld joints are greatly reduced; all webs with curved appearances are combined with an arm frame to realize stress distribution so as to effectively homogenize the stress on the main arm structure and improve the integral strength; and the main arm structure has strong bearing capacity, a simple structure and light weight.
Description
Technical field
The utility model relates to a kind of principal arm structure of construction machinery and equipment, particularly a kind of fork installation principal arm structure.
Background technology
The fork installation is a kind of high-mobility, multipurpose, wheeled vehicle lifting haulage equipment, integrates stability and high efficiency, is suitable for various materials carrying environment.The fork installation has its unique construction, and front end is an equipment, and equipment comprises compositions such as principal arm, telescopic jib (being included in the principal arm) and unsteady pallet fork.In lifting high operation, mainly bear the gravity that whole telescopic jib, pallet fork and load produce through principal arm.Present stage fork installation principal arm structure generally adopts four blocks of sheet materials to be welded into the tetragonal version that the cross section is a standard; Because of project organization unreasonable; Butt weld is many; Welding stress is difficult for discharging, and makes the stressed homogeneity of swing arm in the lifting process bad, causes harmful effects such as principal arm pot life weak point, cracking.
The utility model content
The purpose of the utility model is that a kind of fork installation principal arm structure rational in infrastructure, high-intensity will be provided.
The purpose of the utility model is achieved in that this principal arm comprises: bent plate, rear web, back endosternum and the 4th axle sleeve in U type main semaphore arm, preceding epiplastron, upper cover plate, epiplastron, main brass, bending cover plate, reverse link, first axle sleeve, second axle sleeve, left web, right web, oil cylinder stay bearing plate, third axle cover, front side plate, preceding lower web plate, the back; U type main semaphore arm is a main body, and the inboard that upper cover plate is welded on U type main semaphore arm forms a high strength body structure; Preceding epiplastron and epiplastron are welded on the front portion and the medium position of upper cover plate respectively; Second axle sleeve is welded on the both sides, back of the wallboard of U type main semaphore arm respectively; The bending bridge welding is connected on wallboard back one side of U type main semaphore arm; Main brass is welded between two wallboards of U type main semaphore arm and passes the bending cover plate; First axle sleeve is welded on above the bending cover plate; Reverse link 7 is welded on main brass back above the wallboard of U type main semaphore arm; Bent plate is welded between the wallboard and bending cover plate of U type main semaphore arm in the back; Rear web, back endosternum and the 4th axle sleeve are welded on wallboard back one side of U type main semaphore arm respectively; Left web and right web are welded on the middle both sides of U type main semaphore arm respectively; The oil cylinder stay bearing plate is symmetrically welded on left web and the right web; The third axle cover is welded on left web and the right web; Front side plate is symmetrically welded at the front end both sides of U type main semaphore arm; Preceding lower web plate is welded on the centre of U type main semaphore arm front end lower front side plate.
Beneficial effect, owing to adopted such scheme, the combination through U type master's wallboard and upper cover plate has significantly reduced weld seam, becomes two weld seams by four weld seams, has reduced welding stress and welding deformation.Arm head is strengthened by four groups of high strength webs, side plate and gussets up and down at the arm head of principal arm, guaranteed arm head intensity.Force localization is at the principal arm midway location when whole swing arm is stretched entirely, and whole epiplastron has well been protected the torsional deflection of U type master wallboard under the weight effect, and the left and right sides web has been strengthened the intensity of whole swing arm box type construction.Simultaneously the profiled holes in the middle of the web of the left and right sides with backward gradually the design of the contour structures of transition make the welding stress that produces in the swing arm welding process obtain good release again, when having guaranteed principal arm work reliably, safety.Thereby the design of one-sided cover plate has reduced the width of principal arm again when guaranteeing the normal supply oil mass of leveling cyclinder reduce the principal arm volume, and weight is lighter.It is strong, simple for structure, in light weight that whole principal arm has a load-carrying capacity, reaches the stability and the lifting performance that improve complete machine, simplified welding process simultaneously, improved work efficiency.
Advantage: adopt the combination of U type master's wallboard and upper cover plate, significantly reduced weld seam; Each web adopts curved profile to combine the stressed distribution of jib, actv. make the principal arm structure stress more all should, improved bulk strength; The principal arm rear end adopts great circle arc to carry out transition, has reduced stress concentration.The oil cylinder stay bearing plate is welded on U template midway location and makes swing arm stressed more even in the lifting process, improves the principal arm pot life.Whole principal arm structure has reduced welding stress and welding process difficulty, alleviates working strength, and load-carrying capacity is strong, simple for structure, in light weight.
Description of drawings
Fig. 1 is the constructional drawing of the utility model.
Fig. 2 is the cover plate sectional structure chart of the utility model.
Among the figure, 1, U type main semaphore arm; 2, preceding epiplastron; 3, upper cover plate; 4, epiplastron; 5, main brass; 6, bending cover plate; 7, reverse link; 8, first axle sleeve; 9, second axle sleeve; 10, left web; 11, right web; 12, oil cylinder stay bearing plate; 13, third axle cover; 14, front side plate; 15, preceding lower web plate; 16, bent plate in the back; 17, rear web; 18, back endosternum; 19, the 4th axle sleeve.
The specific embodiment
Embodiment 1: this principal arm comprises: bent plate 16, rear web 17, back endosternum 18 and the 4th axle sleeve 19 in U type main semaphore arm 1, preceding epiplastron 2, upper cover plate 3, epiplastron 4, main brass 5, bending cover plate 6, reverse link 7, first axle sleeve 8, second axle sleeve 9, left web 10, right web 11, oil cylinder stay bearing plate 12, third axle cover 13, front side plate 14, preceding lower web plate 15, the back.U type main semaphore arm 1 is a main body, and the inboard that upper cover plate 3 is welded on U type main semaphore arm 1 forms a high strength body structure; Preceding epiplastron 2 and epiplastron 4 are welded on the front portion and the medium position of upper cover plate 3 respectively; Second axle sleeve 9 is welded on the both sides, back of the wallboard of U type main semaphore arm 1 respectively; Bending cover plate 6 is welded on wallboard back one side of U type main semaphore arm 1; Main brass 5 is welded between two wallboards of U type main semaphore arm 1 and passes bending cover plate 6; First axle sleeve 8 is welded on above the bending cover plate 6; Reverse link 7 is welded on No. 5 part main brasss back above the wallboard of U type main semaphore arm 1; Bent plate 16 is welded between the wallboard and bending cover plate 6 of U type main semaphore arm 1 in the back; Rear web 17, back endosternum 18 and the 4th axle sleeve 19 are welded on wallboard back one side of U type main semaphore arm 1 respectively; Left web 10 is welded on U type main semaphore arm 1 middle both sides respectively with right web 11; Oil cylinder stay bearing plate 12 is symmetrically welded on left web 10 and the right web 11; Third axle cover 13 is welded on left web 10 and the right web 11; Front side plate 14 is symmetrically welded at the front end both sides of U type main semaphore arm 1; Preceding lower web plate 15 is welded on the centre of U type main semaphore arm 1 front end lower front side plate 14.
Claims (1)
1. pitch installation principal arm structure for one kind; It is characterized in that: this principal arm comprises: this principal arm comprises: bent plate, rear web, back endosternum and the 4th axle sleeve in U type main semaphore arm, preceding epiplastron, upper cover plate, epiplastron, main brass, bending cover plate, reverse link, first axle sleeve, second axle sleeve, left web, right web, oil cylinder stay bearing plate, third axle cover, front side plate, preceding lower web plate, the back; U type main semaphore arm is a main body, and the inboard that upper cover plate is welded on U type main semaphore arm forms a high strength body structure; Preceding epiplastron and epiplastron are welded on the front portion and the medium position of upper cover plate respectively; Second axle sleeve is welded on the both sides, back of the wallboard of U type main semaphore arm respectively; The bending bridge welding is connected on wallboard back one side of U type main semaphore arm; Main brass is welded between two wallboards of U type main semaphore arm and passes the bending cover plate; First axle sleeve is welded on above the bending cover plate; Reverse link 7 is welded on main brass back above the wallboard of U type main semaphore arm; Bent plate is welded between the wallboard and bending cover plate of U type main semaphore arm in the back; Rear web, back endosternum and the 4th axle sleeve are welded on wallboard back one side of U type main semaphore arm respectively; Left web and right web are welded on the middle both sides of U type main semaphore arm respectively; The oil cylinder stay bearing plate is symmetrically welded on left web and the right web; The third axle cover is welded on left web and the right web; Front side plate is symmetrically welded at the front end both sides of U type main semaphore arm; Preceding lower web plate is welded on the centre of U type main semaphore arm front end lower front side plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202506787U CN202181194U (en) | 2011-07-15 | 2011-07-15 | Main arm structure of fork device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202506787U CN202181194U (en) | 2011-07-15 | 2011-07-15 | Main arm structure of fork device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202181194U true CN202181194U (en) | 2012-04-04 |
Family
ID=46174240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202506787U Expired - Lifetime CN202181194U (en) | 2011-07-15 | 2011-07-15 | Main arm structure of fork device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202181194U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109052237A (en) * | 2018-10-11 | 2018-12-21 | 河南垣发专用车辆集团有限公司 | A kind of forklift automatic hydraulic levelling device |
-
2011
- 2011-07-15 CN CN2011202506787U patent/CN202181194U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN102249170B (en) * | 2011-07-15 | 2013-06-12 | 徐州徐工特种工程机械有限公司 | Main jib structure for fork installing machine |
| CN109052237A (en) * | 2018-10-11 | 2018-12-21 | 河南垣发专用车辆集团有限公司 | A kind of forklift automatic hydraulic levelling device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120404 Effective date of abandoning: 20130612 |
|
| RGAV | Abandon patent right to avoid regrant |