CN102285584A - Fixing leg and frame connecting structure and engineering machinery - Google Patents
Fixing leg and frame connecting structure and engineering machinery Download PDFInfo
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- CN102285584A CN102285584A CN201110173803A CN201110173803A CN102285584A CN 102285584 A CN102285584 A CN 102285584A CN 201110173803 A CN201110173803 A CN 201110173803A CN 201110173803 A CN201110173803 A CN 201110173803A CN 102285584 A CN102285584 A CN 102285584A
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- supporting leg
- vehicle frame
- fixed supporting
- reinforcement
- connection structure
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Abstract
The invention provides a fixing leg and frame connecting structure and engineering machinery. The fixing leg and frame connecting structure comprises a fixing leg, a frame and a connecting part for connecting the fixing leg and the frame, wherein the connecting part comprises a reinforcing vertical plate; the first end of the reinforcing vertical plate is fixedly connected with the rear end face of the fixing leg and the bottom surface of the frame; and the second end of the reinforcing vertical plate is fixedly connected with the front end face and the bottom surface of the fixing leg. According to the fixing leg and frame connecting structure, the number of welding lines and stress concentration points are reduced, and the aims of achieving reliable connection and improving strength and rigidity are fulfilled. The engineering machinery with the fixing leg and frame connecting structure has more stable and reliable supporting effect, and the normal work of the engineering machinery is ensured.
Description
Technical field
The present invention relates to engineering machinery field, in particular to the connection structure and the construction machinery and equipment of a kind of fixed supporting leg and vehicle frame.
Background technology
Construction machinery and equipment usually needs to adopt leg assembly that vehicle body is supported when work, leg assembly mainly is made up of fixed supporting leg and slip supporting leg usually, fixed supporting leg connects to ground, the slip supporting leg can the relative fixed supporting leg slides and contacts with ground, and can leg assembly firmly support vehicle body effectively, and key is whether fixed supporting leg is enough firm with being connected of vehicle frame.The existing fixed supporting leg mainly adopts mode shown in Figure 1 with being connected of vehicle frame, promptly surround a closed box 1 by three blocks of shroudings, add a reinforced rib 2 respectively on closed box 1 both sides again, as can be seen from Figure 2, there is the turning in the transition structure of reinforced rib 2, like this that weld seam quantity is set is many, the welding processing difficulty strengthens, weldquality also is difficult to obtain assurance, and the welding sharp corner at closed box produces very big stress concentration, in hoisting crane actual job process, ftracture easily during the tension of set square commissure.
Summary of the invention
The present invention aims to provide connection structure and the construction machinery and equipment that a kind of weld seam is less with focal point of stress, be connected failure-free fixed supporting leg and vehicle frame.
To achieve these goals, according to an aspect of the present invention, the connection structure of a kind of fixed supporting leg and vehicle frame is provided, comprise: fixed supporting leg, vehicle frame and be connected and fixed supporting leg and the connecting portion of vehicle frame, this connecting portion comprises the reinforcement riser, this first end of strengthening riser is captiveed joint with the aft end face of fixed supporting leg and the bottom surface of vehicle frame, and second end of strengthening riser is captiveed joint with the bottom surface with the front end face of fixed supporting leg.
Further, first end of strengthening riser forms the triangular support portion of captiveing joint with the bottom surface of the aft end face of fixed supporting leg and vehicle frame.
Further, second end of reinforcement riser forms the L shaped corner part of captiveing joint with front end face, the bottom surface of fixed supporting leg.
Further, strengthening riser is two, strengthens riser for two and is set up in parallel, and strengthen being fixedly connected with the reinforcement supporting plate between the riser at two.
Further, strengthen supporting plate and contact, and extend to the bottom surface of vehicle frame, and contact with the bottom surface formation face of vehicle frame along triangular support portion with the bottom surface formation face of fixed supporting leg.
Further, be provided with the backing plate of captiveing joint with the reinforcement supporting plate in the bottom surface of fixed supporting leg with L shaped corner part.
Further, be fixedly connected as welding.
According to a further aspect in the invention, provide a kind of construction machinery and equipment, had the connection structure of above-mentioned fixed supporting leg and vehicle frame.
Connection structure according to fixed supporting leg of the present invention and vehicle frame, its connecting portion has the reinforcement riser, this first end of strengthening riser is captiveed joint with the aft end face of fixed supporting leg and the bottom surface of vehicle frame, its second end is captiveed joint with the bottom surface with the front end face of fixed supporting leg, such structure decrease the quantity and the focal point of stress of weld seam, connect reliable, as to improve Joint strenght and rigidity purpose thereby reached.
Construction machinery and equipment of the present invention is because of having the connection structure of above-mentioned fixed supporting leg and vehicle frame, thereby obtained firm more and failure-free support effect, guaranteed the normal operation of construction machinery and equipment.
Description of drawings
The Figure of description 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 is the connection structure scheme drawing of existing fixed supporting leg and vehicle frame;
Fig. 2 is the reinforced rib of existing connection structure and the transition structure scheme drawing between the vehicle frame;
Fig. 3 is the perspective view of the connection structure of fixed supporting leg of the present invention and vehicle frame;
Fig. 4 is the upward view of the connection structure of fixed supporting leg of the present invention and vehicle frame; And
Fig. 5 is the front view of the connection structure of fixed supporting leg of the present invention and vehicle frame.
The specific embodiment
Need to prove that under the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe the present invention below with reference to the accompanying drawings and in conjunction with the embodiments in detail.
According to one embodiment of present invention, the connection structure of a kind of fixed supporting leg and vehicle frame is provided, as shown in Figure 3, comprise: fixed supporting leg 10, vehicle frame 30 and the connecting portion 50 that is connected and fixed supporting leg 10 and vehicle frame 30, wherein, connecting portion 50 comprises strengthens riser 51, and first end of strengthening riser 51 is captiveed joint with the bottom surface of vehicle frame 30 with the aft end face of fixed supporting leg 10, and second end of strengthening riser 51 is captiveed joint with the bottom surface with the front end face of fixed supporting leg 10.Preferably, captive joint can adopt welding.
Connection structure according to fixed supporting leg of the present invention and vehicle frame, its connecting portion 50 has the riser 51 of reinforcement, this first end of strengthening riser 51 is captiveed joint with the bottom surface of vehicle frame 30 with the aft end face of fixed supporting leg 10, its second end is captiveed joint with the bottom surface with the front end face of fixed supporting leg 10, such structure decrease the quantity and the focal point of stress of weld seam, connect reliable, as to improve Joint strenght and rigidity purpose thereby reached.
From Fig. 3, it can also be seen that, first end of strengthening riser 51 forms the triangular support portion 511 of captiveing joint with the bottom surface of vehicle frame 30 with the aft end face of fixed supporting leg 10, and second end of strengthening riser 51 forms the L shaped corner part 513 of captiveing joint with front end face, the bottom surface of fixed supporting leg 10.
Preferably, as shown in Figure 4, can adopt two reinforcement risers 51 that are set up in parallel, and strengthen being fixedly connected with between the riser 51 reinforcement supporting plate 53 at these two.
Preferably, as shown in Figure 5, strengthen supporting plate 53 and contact, and extend to the bottom surface of vehicle frame 30, and contact with the bottom surface formation face of vehicle frame 30 along triangular support portion 511 with the bottom surface formation face of fixed supporting leg 10.
According to above-mentioned to strengthening riser 51 and strengthen the setting of supporting plate 53, vehicle frame 30 and fixed supporting leg 10 be connected more closely and firm, and the load that acts on the vehicle frame 30 can be delivered on the fixed supporting leg 10 better, strengthened the support effect to vehicle frame 30.And, adopt triangular support portion 511 to be connected and fixed the bottom surface of the aft end face of supporting leg 10 and vehicle frame 30 and to make and strengthen supporting plate 53 extends to vehicle frame 30 along triangular support portion 511 bottom surface, thisly avoided the stress concentration on the connection structure to the linear transition structure of vehicle frame 30 transition by fixed supporting leg 10, flex point and solder joint have been reduced, the load that helps acting on the vehicle frame 30 is delivered on the fixed supporting leg 10 swimmingly, and fixed supporting leg 10 and vehicle frame 30 tensions cause the weld seam drawing crack on the connection structure when preventing to lift by crane the weight of big load and rated load.
In order further to obtain more firm support effect, can as shown in Figure 4 the backing plate 11 of captiveing joint with reinforcement supporting plate 53 with L shaped corner part 513 be set in the bottom surface of fixed supporting leg 10.
According to another embodiment of the invention, provide a kind of construction machinery and equipment, this project machinery is because of having the connection structure of above-mentioned fixed supporting leg and vehicle frame, thereby obtained more firmly and the failure-free support effect, guaranteed the normal operation of construction machinery and equipment.
As can be seen from the above description, the above embodiments of the present invention have realized following technique effect:
In an embodiment of the present invention, connecting portion 50 has the riser 51 of reinforcement, this first end of strengthening riser 51 is captiveed joint with the bottom surface of vehicle frame 30 with the aft end face of fixed supporting leg 10, its second end is captiveed joint with the bottom surface with the front end face of fixed supporting leg 10, such structure decrease the quantity and the focal point of stress of weld seam, connect reliable, as to improve Joint strenght and rigidity purpose thereby reached.
And, according to the setting of the embodiment of the invention to reinforcement riser 51 and reinforcement supporting plate 53, being connected more closely and firmly of vehicle frame 30 and fixed supporting leg 10, and the load that acts on the vehicle frame 30 can be delivered on the fixed supporting leg 10 better, strengthened the support effect to vehicle frame 30.And, adopt triangular support portion 511 to be connected and fixed the bottom surface of the aft end face of supporting leg 10 and vehicle frame 30 and to make and strengthen supporting plate 53 extends to vehicle frame 30 along triangular support portion 511 bottom surface, thisly avoided the stress concentration on the connection structure to the linear transition structure of vehicle frame 30 transition by fixed supporting leg 10, flex point and solder joint have been reduced, the load that helps acting on the vehicle frame 30 is delivered on the fixed supporting leg 10 swimmingly, and fixed supporting leg 10 and vehicle frame 30 tensions cause the weld seam drawing crack on the connection structure when preventing to lift by crane the weight of big load and rated load.
In addition, in an embodiment of the present invention, the construction machinery and equipment with connection structure of said fixing supporting leg and vehicle frame has obtained firm more and failure-free support effect, has guaranteed the normal operation of construction machinery and equipment.
The above is the preferred embodiments of the present invention only, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.Within the spirit and principles in the present invention all, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the connection structure of fixed supporting leg and vehicle frame, comprise: fixed supporting leg (10), vehicle frame (30) and the connecting portion (50) that connects described fixed supporting leg (10) and described vehicle frame (30), it is characterized in that, described connecting portion (50) comprises strengthens riser (51), first end of described reinforcement riser (51) is captiveed joint with the bottom surface of described vehicle frame (30) with the aft end face of described fixed supporting leg (10), and second end of described reinforcement riser (51) is captiveed joint with the bottom surface with the front end face of described fixed supporting leg (10).
2. connection structure according to claim 1 is characterized in that, first end of described reinforcement riser (51) forms the triangular support portion (511) of captiveing joint with the bottom surface of described vehicle frame (30) with the aft end face of described fixed supporting leg (10).
3. connection structure according to claim 1 is characterized in that, second end of described reinforcement riser (51) forms the L shaped corner part (513) of captiveing joint with the bottom surface with the front end face of described fixed supporting leg (10).
4. connection structure according to claim 1 is characterized in that, described reinforcement riser (51) is two, and described two reinforcement risers (51) are set up in parallel, and strengthens being fixedly connected with between the risers (51) reinforcement supporting plate (53) at described two.
5. connection structure according to claim 2 is characterized in that, described reinforcement riser (51) is two, and described two reinforcement risers (51) are set up in parallel, and strengthens being fixedly connected with between the risers (51) reinforcement supporting plate (53) at described two.
6. connection structure according to claim 3 is characterized in that, described reinforcement riser (51) is two, and described two reinforcement risers (51) are set up in parallel, and strengthens being fixedly connected with between the risers (51) reinforcement supporting plate (53) at described two.
7. connection structure according to claim 5, it is characterized in that, described reinforcement supporting plate (53) contacts with the bottom surface formation face of described fixed supporting leg (10), and extend to the bottom surface of described vehicle frame (30), and contact with the bottom surface formation face of described vehicle frame (30) along described triangular support portion (511).
8. connection structure according to claim 6 is characterized in that, is provided with the backing plate (11) of captiveing joint with described reinforcement supporting plate (53) with described L shaped corner part (513) in the bottom surface of described fixed supporting leg (10).
9. according to each described connection structure in the claim 1 to 8, it is characterized in that, describedly be fixedly connected as welding.
10. a construction machinery and equipment is characterized in that, has the connection structure of each described fixed supporting leg and vehicle frame in the claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173803A CN102285584A (en) | 2011-06-24 | 2011-06-24 | Fixing leg and frame connecting structure and engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110173803A CN102285584A (en) | 2011-06-24 | 2011-06-24 | Fixing leg and frame connecting structure and engineering machinery |
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| Publication Number | Publication Date |
|---|---|
| CN102285584A true CN102285584A (en) | 2011-12-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110173803A Pending CN102285584A (en) | 2011-06-24 | 2011-06-24 | Fixing leg and frame connecting structure and engineering machinery |
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| CN (1) | CN102285584A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285191A (en) * | 2017-07-27 | 2017-10-24 | 湖北先驰交通装备有限公司 | Assembly method of the track derrick car loop wheel machine fixed supporting leg on main car frame central sill |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11116186A (en) * | 1997-10-16 | 1999-04-27 | Kato Works Co Ltd | Car body frame reinforcing member of wheel crane |
| CN102009919A (en) * | 2010-12-06 | 2011-04-13 | 徐州重型机械有限公司 | Crane and frame thereof |
-
2011
- 2011-06-24 CN CN201110173803A patent/CN102285584A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11116186A (en) * | 1997-10-16 | 1999-04-27 | Kato Works Co Ltd | Car body frame reinforcing member of wheel crane |
| CN102009919A (en) * | 2010-12-06 | 2011-04-13 | 徐州重型机械有限公司 | Crane and frame thereof |
Non-Patent Citations (3)
| Title |
|---|
| 《中国优秀硕士学位论文全文数据库》 20110515 谢先富 越野轮胎起重机车架有限元分析 p14-15、57 , 第5期 * |
| 谢先富: "越野轮胎起重机车架有限元分析", 《中国优秀硕士学位论文全文数据库》, no. 5, 15 May 2011 (2011-05-15) * |
| 谢先富: "越野轮胎起重机车架的疲劳计算", 《建筑机械技术与管理》, no. 5, 31 May 2010 (2010-05-31), pages 88 - 90 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107285191A (en) * | 2017-07-27 | 2017-10-24 | 湖北先驰交通装备有限公司 | Assembly method of the track derrick car loop wheel machine fixed supporting leg on main car frame central sill |
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Address after: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Applicant after: Zoomlion Heavy Industry Science & Technology Development Co., Ltd. Address before: 410013 Yuelu District, Hunan, silver basin Road, No. 361, No. Applicant before: Chang Sha Zoomlion Heavy Industry Science & Technology Development Co., Ltd. |
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Application publication date: 20111221 |