CN202416400U - Excavator bucket arm and excavator with same - Google Patents
Excavator bucket arm and excavator with same Download PDFInfo
- Publication number
- CN202416400U CN202416400U CN2011205387811U CN201120538781U CN202416400U CN 202416400 U CN202416400 U CN 202416400U CN 2011205387811 U CN2011205387811 U CN 2011205387811U CN 201120538781 U CN201120538781 U CN 201120538781U CN 202416400 U CN202416400 U CN 202416400U
- Authority
- CN
- China
- Prior art keywords
- dipper
- stiffener
- bucket arm
- excavator
- reinforcement plate
- 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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Abstract
The utility model provides an excavator bucket arm and an excavator with the same. The excavator bucket arm provided by the utility model comprises a bucket arm and a bucket arm reinforcement plate arranged next to the bucket arm. Both ends of the bucket arm reinforcement plate are respectively provided with reinforcement plate bases which are integrally of a rectangular shape; the reinforcement plate bases are fixed on the bucket arm; and the bucket arm reinforcement plate is clamped and connected with the reinforcement plate bases in a mortise and tenon structure mode. According to the utility model, long weld joints at both sides of the bucket arm reinforcement plate are avoided, the welding length is effectively reduced and the cracking probability of the weld joints is reduced; the corner displacement of the end face of the bucket arm reinforcement plate is not restrained by the mortise and tenon structure, and thus, after the bucket arm is stressed to be bent, most of the strain energy at the junction of the bucket arm reinforcement plate and a bottom plate of the bucket arm is stored by the bottom plate and even though the weld joints are still generated, the weld joint energy storage can be greatly reduced, so that the cracking probability of the weld joints is also effectively reduced. The bucket arm reinforcement plate of the excavator bucket arm is also convenient to replace.
Description
Technical field
The utility model relates generally to engineering machinery field, particularly a kind of excavator boom and the excavator with this dipper.
Background technology
Usually can dispose stiffener on the hydraulic crawler excavator dipper base plate, main purpose is the abrasionproof crashworthiness that strengthens the dipper bottom, the application life of improving dipper.Stiffener material of the existing end is generally steel, is connected through girth joint with the dipper base plate, and this connected mode weld seam is longer, when relatively poor or welding residual stress is big when weldquality, and the weld seam easy of crack.In addition, because of stiffener and base plate seam, have sudden change in weld seam structure on two sides rigidity, the dipper front end produces moderate finite deformation during excavation, and the strain energy of stiffener and base plate junction has increased the probability of weld cracking mostly by the weld seam storage.
Therefore, a kind of novel excavator boom that has need be provided, to reduce the probability of weld cracking between excavator boom and the dipper stiffener.
The utility model content
The utility model aims to provide a kind of excavator boom, and it can reduce the probability of weld cracking between excavator boom and the dipper stiffener, and is convenient for changing the dipper stiffener.
The utility model provides a kind of excavator boom on the one hand; Comprise dipper and the dipper stiffener that is provided with near said dipper; Said dipper stiffener two ends are respectively arranged with the stiffener base that integral body is cuboid; Said stiffener base is fixed on the said dipper, and said dipper stiffener is connected with the engaging of joinery and its construction form with said stiffener base.
Further; The end that is connected with said stiffener base of said dipper stiffener has the tenon along said dipper lateral projection; The end that is connected with said dipper stiffener of said stiffener base has tongue-and-groove, said tenon and the tongue-and-groove snap-fit along said dipper lateral recesses.
Further, the tenon with F type of said dipper stiffener, said stiffener base has the tongue-and-groove of U type.
Further, said dipper stiffener is a nylon sheet.
Further, said stiffener base is weldingly fixed on the said dipper.
Further, said stiffener base is weldingly fixed on the base plate of said dipper.
The utility model a kind of excavator also is provided on the other hand, it has aforesaid excavator boom.
The utility model is welded on the stiffener base on the excavator boom, then the engaging of dipper stiffener is plugged on the stiffener base.The utility model only is fixed on the stiffener base on the excavator boom, has avoided the long weld seam of dipper stiffener both sides, has effectively reduced fusion length, has reduced the weld cracking probability; And the dipper stiffener is connected with the drawer type that the stiffener base belongs to joinery and its construction; Joinery and its construction does not retrain the corner displacement of dipper stiffener end face; So after the dipper stressed bending, the strain energy major part in the base plate junction of dipper stiffener and dipper is stored by base plate, even if still have weld seam; The weld seam energy storage will significantly reduce, and also effectively reduce the weld cracking probability.In addition, the excavator boom stiffener structure of the utility model is for convenience detach, treat the heavy wear of dipper stiffener after, the dipper stiffener that can more renew easily.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below; Obviously, the accompanying drawing in describing below only is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of excavator boom of the utility model.
Fig. 2 is the enlarged diagram at the A place of excavator boom shown in Figure 1.
Fig. 3 is the structural representation of the dipper stiffener in the utility model.
Fig. 4 is the structural representation of the stiffener base in the utility model.
The specific embodiment
To combine the accompanying drawing among the utility model embodiment below, the technical scheme among the utility model embodiment is carried out clear, intactly description, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
A kind of excavator boom that provides for the utility model as depicted in figs. 1 and 2; Comprise dipper 3 and the dipper stiffener 1 that is provided with near dipper 3; Dipper stiffener 1 two ends are respectively arranged with the stiffener base 2 that integral body is cuboid; Stiffener base 2 is fixed on the dipper 3, and dipper stiffener 1 is connected with the engaging of joinery and its construction form with stiffener base 2.
During installation, at first, stiffener base 2 is connected fixing with dipper 3; Then, dipper stiffener 1 is inserted the base draw-in groove,, form " drawer type " and connect through the joinery and its construction engaging.
The utility model only is fixed on stiffener base 2 on the excavator boom 3, has avoided the long weld seam of dipper stiffener 1 both sides, has effectively reduced fusion length, has reduced the weld cracking probability; And dipper stiffener 1 is connected with the drawer type that stiffener base 2 belongs to joinery and its construction; Joinery and its construction does not retrain the corner displacement of dipper stiffener 1 end face; So after the dipper 3 stressed bendings, store by base plate in the strain energy major part of dipper stiffener 1, even if still have weld seam with the base plate junction of dipper 3; The weld seam energy storage will significantly reduce, and also effectively reduce the weld cracking probability.In addition, excavator boom stiffener 1 structure of the utility model is for convenience detach, treat 1 heavy wear of dipper stiffener after, the dipper stiffener 1 that can more renew easily.
As preferred embodiment; Like Fig. 3 and shown in Figure 4; The end that is connected with stiffener base 2 of the dipper stiffener 1 of the utility model can have along the tenon of dipper 3 lateral projection; The end that is connected with dipper stiffener 1 of stiffener base 2 has along the tongue-and-groove of dipper 3 lateral recesses, tenon and tongue-and-groove snap-fit.Further, the dipper stiffener 1 of the utility model has F type tenon structure as shown in Figure 3, and stiffener base 2 has U type tenon groove structure as shown in Figure 4.In addition, can insert and be fastened in the stiffener base 2 as long as guarantee dipper stiffener 1, both architectural features can be exchanged, and also can adopt other suitable tenon and tenon groove structures.
Consider that the relative steel of nylon material have better wear resistance and shock absorption, the dipper stiffener 1 of the utility model can be nylon sheet.In addition, adopt nylon sheet to also have other advantages, as isopyknic nylon material quality be merely steel 1/7, price is far below steel, lightweight, more economical more; Adopt monomer cast nylon, can conveniently obtain comparatively complicated nylon sheet shape, and suitable machine; Nylon material can satisfy performances such as required intensity, impact through modification.
Certainly, the dipper stiffener 1 of the utility model can also adopt the sheet material that other materials that are suitable as stiffener such as steel plate are processed.
Securely stiffener base 2 is fixed on the dipper 3 for convenient, the utility model can be weldingly fixed on stiffener base 2 on the said dipper 3.Simultaneously, can polish by butt welded seam, guarantee weld seam and mother metal smooth transition, realize better welding fixed effect.
Though adopt welding herein, the mode that in the utility model and the prior art stiffener directly is welded on the dipper is compared, and still can realize reducing the probability of weld cracking.Because even if adopt welding, but the sectional dimension of stiffener base 2 is very little; There is not significant rigidity sudden change in the weld seam both sides, and as stated, dipper stiffener 1 is connected with the drawer type that stiffener base 2 belongs to joinery and its construction; Joinery and its construction does not retrain the corner displacement of dipper stiffener 1 end face, so after the dipper 3 stressed bendings, stored by base plate in the strain energy major part of dipper stiffener 1 with the base plate junction of dipper 3; The weld seam energy storage reduces, thereby can effectively reduce the weld cracking probability.In order to make this effect more obvious, the utility model can be under situation about allowing, and the length of stiffener base 2 is configured to as much as possible the length less than dipper stiffener 1.
Though the utility model has adopted the fixing stiffener base 2 of welding, it will be appreciated by those skilled in the art that can also be according to demands of different, and other suitable fixed forms such as employing bolt are fixed on strong plate base 2 on the said dipper 3.
Can also effectively protect the position easy to wear of dipper 3 for making dipper stiffener 1; In particular for protection dipper base plate; Avoid dipper itself to receive the collision of other obstructions and damage, the stiffener base 2 of the utility model is weldingly fixed on the base plate of said dipper 3.After like this dipper stiffener 1 being installed, it can effectively protect dipper 3; Certainly, when protection is like other surfaces such as dipper upper surfaces if desired, also can stiffener base 2 and dipper stiffener 1 be fixedly installed on other surfaces.
The utility model also provides a kind of excavator, and it has the excavator boom 3 above-mentioned like the utility model.According to the above, the excavator that the utility model provides can reduce the probability of weld cracking between excavator boom and the dipper stiffener, and is convenient for changing the dipper stiffener; Simultaneously the dipper stiffener of excavator can also effectively be protected dipper, avoids receiving the collision of other obstructions and damages.
More than be merely the preferred embodiment of the utility model, or not all within the spirit and principle of the utility model in order to restriction the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the utility model.
Claims (7)
1. excavator boom; Comprise dipper (3) and the dipper stiffener (1) that is provided with near said dipper (3); It is characterized in that; Said dipper stiffener (1) two ends are respectively arranged with the stiffener base (2) that integral body is cuboid, and said stiffener base (2) is fixed on the said dipper (3), and said dipper stiffener (1) is connected with the engaging of joinery and its construction form with said stiffener base (2).
2. excavator boom according to claim 1; It is characterized in that; The end that is connected with said stiffener base (2) of said dipper stiffener (1) has along the tenon of said dipper (3) lateral projection; The end that is connected with said dipper stiffener (1) of said stiffener base (2) has along tongue-and-groove, said tenon and the tongue-and-groove snap-fit of said dipper (3) lateral recesses.
3. excavator boom according to claim 1 is characterized in that, the tenon with F type of said dipper stiffener (1), the tongue-and-groove that said stiffener base (2) has the U type.
4. excavator boom according to claim 1 is characterized in that, said dipper stiffener (1) is a nylon sheet.
5. according to any described excavator boom of claim among the claim 1-4, it is characterized in that said stiffener base (2) is weldingly fixed on the said dipper (3).
6. excavator boom according to claim 5 is characterized in that, said stiffener base (2) is weldingly fixed on the base plate of said dipper (3).
7. an excavator is characterized in that, it has like any described excavator boom of claim (3) among the claim 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205387811U CN202416400U (en) | 2011-12-20 | 2011-12-20 | Excavator bucket arm and excavator with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205387811U CN202416400U (en) | 2011-12-20 | 2011-12-20 | Excavator bucket arm and excavator with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202416400U true CN202416400U (en) | 2012-09-05 |
Family
ID=46741179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205387811U Expired - Fee Related CN202416400U (en) | 2011-12-20 | 2011-12-20 | Excavator bucket arm and excavator with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202416400U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108360588A (en) * | 2018-03-02 | 2018-08-03 | 柳州柳工挖掘机有限公司 | Excavator boom |
| CN110158677A (en) * | 2018-02-12 | 2019-08-23 | 日立建机株式会社 | Scraper bowl |
| CN111535387A (en) * | 2020-03-30 | 2020-08-14 | 江苏国润机械制造有限公司 | Overhaul convenient excavator bucket rod |
-
2011
- 2011-12-20 CN CN2011205387811U patent/CN202416400U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110158677A (en) * | 2018-02-12 | 2019-08-23 | 日立建机株式会社 | Scraper bowl |
| CN108360588A (en) * | 2018-03-02 | 2018-08-03 | 柳州柳工挖掘机有限公司 | Excavator boom |
| CN111535387A (en) * | 2020-03-30 | 2020-08-14 | 江苏国润机械制造有限公司 | Overhaul convenient excavator bucket rod |
| CN111535387B (en) * | 2020-03-30 | 2022-07-22 | 江苏国润机械制造有限公司 | Convenient-to-overhaul excavator bucket rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120905 Termination date: 20141220 |
|
| EXPY | Termination of patent right or utility model |