CN203920956U - The draw bail of a kind of track frame and car body and shovel crawler - Google Patents
The draw bail of a kind of track frame and car body and shovel crawler Download PDFInfo
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- CN203920956U CN203920956U CN201420317418.0U CN201420317418U CN203920956U CN 203920956 U CN203920956 U CN 203920956U CN 201420317418 U CN201420317418 U CN 201420317418U CN 203920956 U CN203920956 U CN 203920956U
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- Prior art keywords
- car body
- track frame
- bolt
- nut
- thread screw
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Abstract
The draw bail and the shovel crawler that the utility model discloses a kind of track frame and car body, belong to mechanical manufacturing field, comprises car body (4), track frame (1), first row bolt and second row bolt.Car body (4) is body structure, on the side plate of car body (4), comprises top and bottom.Track frame comprises upper and lower on (1).First row bolt is through the top of car body (4) side plate and the top of track frame (1), and fix with the top of car body (4) side plate and the top of track frame (1) respectively, second row bolt passes the bottom of car body (4) side plate and the bottom of track frame (1), and fixes with the bottom of car body (4) side plate and the bottom of track frame (1) respectively.The technical solution of the utility model is by adopting the version of upper and lower double Bolt Connection, has compact conformation, installation, maintenance is convenient, car body is stressed evenly, the advantage that reliability is high, cost is low.
Description
Technical field
The utility model belongs to mechanical manufacturing field, relates to a kind of draw bail, relates in particular to draw bail and the shovel crawler of a kind of track frame and car body.
Background technology
Track frame is the important supporting part of power shovel, and it bears by certain connecting mode the application force that underframe transmits, and is then delivered on ground through caterpillar wheel and caterpillar block.
At present, the connecting mode of power shovel track frame and car body mainly contains:
1) hook tooth and screw attachment.There is hook tooth to be used for fixing track frame at car body two side lower parts, have screw hole on the top of car body, track frame is fixed on base with screw.The connecting mode joint bolt of this mode is not subject to shearing and extruding, and linking intensity is high, easy for installation.But it is large to connect rigidity, and car body local pressure is inhomogeneous, easily ruptures.
2) Bolt Connection.Track frame and car body adopt upper and lower double Bolt Connection, and the bolt of car body end all, in car body box-structure inside, is fixed by nut, and crawler frame terminal bolt adopts breakaway nut to fix.The connecting mode compact conformation of this mode, linking intensity is high, and car body is stressed evenly, more convenient when screw-down torque.But very inconvenient when mounted, breakaway nut price comparison costliness simultaneously, cost is high.
Utility model content
In view of this, the utility model is by adopting the version of upper and lower double Bolt Connection, has compact conformation, installation, maintenance is convenient, car body is stressed evenly, the advantage that reliability is high, cost is low.
For achieving the above object, concrete technical scheme is as follows:
On the one hand, the draw bail of a kind of track frame and car body is provided, be applicable to shovel crawler, comprise car body, track frame, first row bolt and second row bolt, described car body is body structure, on the side plate of described car body, comprise top and bottom, on described track frame, comprise upper and lower, described first row bolt is through the top of described car body side plate and the top of track frame, and fix with the top of described car body side plate and the top of track frame respectively, described second row bolt is through the bottom of described car body side plate and the bottom of track frame, and fix with the bottom of described car body side plate and the bottom of track frame respectively.
Preferably, described first row bolt and second row bolt comprise some two-thread screws.
Preferably, one end of described two-thread screw and described car body side plate are fixed, and the other end of described two-thread screw and described track frame are fixed by nut.
Preferably, the bottom of described car body is provided with the outer gusset being parallel to each other and strengthens gusset.
Preferably, also comprise locating plate, described locating plate and described reinforcement gusset are welded and fixed.
Preferably, on one end of two-thread screw in described second row bolt, be also provided with setscrew nut, described setscrew nut is fixedly connected with one end of the two-thread screw in described second row bolt, described locating plate is provided with the draw-in groove coordinating with described setscrew nut, and one end of the two-thread screw in described second row bolt is connected with described locating plate with the cooperation of setscrew nut by described draw-in groove.
Preferably, one end of the two-thread screw in described second row bolt is also provided with jam nut and lock bolt, and described setscrew nut is fixed by one end of the two-thread screw in cooperation and the described second row bolt of described jam nut and lock bolt.
Preferably, on the nut of the other end of described two-thread screw, be also provided with cap nut.
Preferably, the side plate of described car body comprises middle stay bearing plate and external support board, and described middle stay bearing plate and external support board are passed in one end of described two-thread screw, and are fixedly connected with described middle stay bearing plate.
On the other hand, provide a kind of shovel crawler, comprise the draw bail of a kind of track frame as above and car body.
With respect to prior art, the advantage of the technical solution of the utility model has:
1, track frame and car body adopt the version of upper and lower double Bolt Connection, compact conformation;
2, upper row is bolted to car body inside, and lower row is bolted in the supporting construction of vehicle bottom, and installation, maintenance is convenient;
3, supporting construction is made up of gusset outside the bottom surface being parallel to each other and middle bottom surface reinforcement gusset, and car body side bolt adopts nut, locating plate to be fixed, and locating plate is welded in supporting construction, and car body is stressed evenly, reliability is high;
4, the bolt of crawler frame end adopts plain nut to tighten fixingly, and cost is low.
Brief description of the drawings
The accompanying drawing that forms a part of the present utility model is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the cross section structure schematic diagram of the utility model embodiment;
Fig. 3 is the vehicle bottom structural representation of the utility model embodiment;
Fig. 4 is two-thread screw one end structural representation of the utility model embodiment.
Wherein, 1 be track frame, 2 for external support board, 3 for middle stay bearing plate, 4 for car body, 5 for outer gusset, 6 for strengthen gusset, 7 for the two-thread screw in second row bolt, 8 for setscrew nut, 9 for jam nut, 10 for locating plate, 11 for packing ring, 12 for lock bolt, 13 for cap nut, 14 be nut.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
It should be noted that, in the situation that not conflicting, the feature in embodiment and embodiment in the utility model can combine mutually.
Below with reference to accompanying drawing, embodiment of the present utility model is done to concrete explaination.
A kind of track frame of embodiment of the present utility model as shown in Figures 1 and 2 and the draw bail of car body, comprise car body 4, track frame 1, first row bolt and second row bolt.Car body 4 is body structure, comprises top and bottom on the side plate of car body 4.On track frame 1, comprise upper and lower.First row bolt is through the top of car body 4 side plates and the top of track frame 1, and fix with the top of car body 4 side plates and the top of track frame 1 respectively, second row bolt passes the bottom of car body 4 side plates and the bottom of track frame 1, and fixes with the bottom of car body 4 side plates and the bottom of track frame 1 respectively.
Embodiment of the present utility model is by adopting the version of upper and lower double Bolt Connection, has compact conformation, installation, maintenance is convenient, car body is stressed evenly, the advantage that reliability is high, cost is low.
In embodiment of the present utility model, preferably first row bolt and second row bolt comprise some two-thread screws.One end of two-thread screw and car body 4 side plates are fixed, and the other end of two-thread screw and track frame 1 are fixing by nut 14.
As shown in Figures 2 and 3, in embodiment of the present utility model, preferably the bottom of car body 4 is provided with the outer gusset 5 being parallel to each other and strengthens gusset 6.Also comprise locating plate 10, locating plate 10 is welded and fixed with reinforcement gusset 6.
As shown in Fig. 2 and 4, in embodiment of the present utility model, preferably on one end of the two-thread screw 7 in second row bolt, be also provided with setscrew nut 8.Setscrew nut 8 is fixedly connected with one end of the two-thread screw 7 in second row bolt, and locating plate 10 is provided with the draw-in groove coordinating with setscrew nut 8, and one end of the two-thread screw 7 in second row bolt is connected with locating plate with the cooperation of setscrew nut 8 by draw-in groove.
One end of two-thread screw 7 in second row bolt is also provided with jam nut 9 and lock bolt 12, and the packing ring 11 coordinating with it.Setscrew nut 8 is fixed by one end of the two-thread screw 7 in cooperation and the second row bolt of jam nut 9 and lock bolt 12.
As shown in Figure 2, in embodiment of the present utility model, on the nut 14 of the other end of two-thread screw, be also provided with cap nut 13.
And preferably the side plate of car body 4 comprises middle stay bearing plate 3 and external support board 2, middle stay bearing plate 3 and external support board 2 are passed in one end of two-thread screw, and are fixedly connected with middle stay bearing plate 3.
In embodiment of the present utility model, car body 4 adopts double Bolt Connection with track frame 1, first row bolt, upper row is bolted on the middle stay bearing plate 3 of car body 4 casings, second row bolt, in the supporting construction that the outer gusset 5 in bottom surface that lower row is bolted to vehicle frame 4 bottoms and bottom surface reinforcement gusset 6 form.
Bolt connection structure is mainly by two-thread screw, setscrew nut 8, lock bolt 12, packing ring 11, jam nut 9, nut 14, the compositions such as cap nut 13 and locating plate 10.
When installation, two-thread screw connects track frame 1 and car body 4, the two-thread screw of car body 4 sides is tightened with setscrew nut 8, then adopt lock bolt 12, packing ring 11 and jam nut 9 that setscrew nut 8 and two-thread screw are fixed, then with locating plate 10, setscrew nut 8 is blocked, and locating plate 10 is welded on the middle stay bearing plate 3 of side of car body 4.
In the bottom of car body 4, locating plate 10 is welded on the reinforcement gusset 6 of bottom surface.Track frame 1 end adopts the fastening two-thread screw of nut 14, and fixing with cap nut 13 on the top of nut 14, prevents nut 14 landings.
In embodiment of the present utility model, also comprise a kind of shovel crawler, be provided with the draw bail of a kind of track frame described above and car body.Because the draw bail of above-mentioned a kind of track frame and car body has above-mentioned technique effect, therefore, the shovel crawler that is provided with the draw bail of this kind of track frame and car body also should possess corresponding technique effect, and its specific implementation process is similar to the above embodiments, does not hereby repeat.
Above specific embodiment of the utility model be have been described in detail, but it is just as example, the utility model is not restricted to specific embodiment described above.To those skilled in the art, any equivalent modifications that the utility model is carried out and alternative also all among category of the present utility model.Therefore,, not departing from equalization conversion and the amendment done under spirit and scope of the present utility model, all should be encompassed in scope of the present utility model.
Claims (10)
1. the draw bail of a track frame and car body, be applicable to shovel crawler, it is characterized in that, comprise car body (4), track frame (1), first row bolt and second row bolt, described car body (4) is body structure, on the side plate of described car body (4), comprise top and bottom, described track frame comprises upper and lower on (1), described first row bolt is through the top of described car body (4) side plate and the top of track frame (1), and fix with the top of described car body (4) side plate and the top of track frame (1) respectively, described second row bolt is through the bottom of described car body (4) side plate and the bottom of track frame (1), and fix with the bottom of described car body (4) side plate and the bottom of track frame (1) respectively.
2. the draw bail of track frame as claimed in claim 1 and car body, is characterized in that, described first row bolt and second row bolt comprise some two-thread screws.
3. the draw bail of track frame as claimed in claim 2 and car body, it is characterized in that, one end of described two-thread screw and described car body (4) side plate are fixed, and the other end of described two-thread screw and described track frame (1) are fixed by nut.
4. the draw bail of track frame as claimed in claim 3 and car body, is characterized in that, the bottom of described car body (4) is provided with the outer gusset (5) being parallel to each other and strengthens gusset (6).
5. the draw bail of track frame as claimed in claim 4 and car body, is characterized in that, also comprises locating plate (10), and described locating plate (10) is welded and fixed with described reinforcement gusset (6).
6. the draw bail of track frame as claimed in claim 5 and car body, it is characterized in that, on one end of two-thread screw (7) in described second row bolt, be also provided with setscrew nut (8), described setscrew nut (8) is fixedly connected with one end of the two-thread screw (7) in described second row bolt, described locating plate (10) is provided with the draw-in groove coordinating with described setscrew nut (8), and one end of the two-thread screw (7) in described second row bolt is connected with described locating plate with the cooperation of setscrew nut by described draw-in groove.
7. the draw bail of track frame as claimed in claim 6 and car body, it is characterized in that, one end of two-thread screw (7) in described second row bolt is also provided with jam nut (9) and lock bolt (12), and described setscrew nut (8) is fixed by one end of the two-thread screw (7) in cooperation and the described second row bolt of described jam nut (9) and lock bolt (12).
8. the draw bail of track frame as claimed in claim 7 and car body, is characterized in that, on the nut (14) of the other end of described two-thread screw, is also provided with cap nut (13).
9. the draw bail of track frame as claimed in claim 8 and car body, it is characterized in that, the side plate of described car body (4) comprises middle stay bearing plate (3) and external support board (2), described middle stay bearing plate (3) and external support board (2) are passed in one end of described two-thread screw, and are fixedly connected with described middle stay bearing plate (3).
10. a shovel crawler, is characterized in that, comprises track frame as described in claim 1 to 9 any one and the draw bail of car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317418.0U CN203920956U (en) | 2014-06-13 | 2014-06-13 | The draw bail of a kind of track frame and car body and shovel crawler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420317418.0U CN203920956U (en) | 2014-06-13 | 2014-06-13 | The draw bail of a kind of track frame and car body and shovel crawler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203920956U true CN203920956U (en) | 2014-11-05 |
Family
ID=51816815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420317418.0U Expired - Fee Related CN203920956U (en) | 2014-06-13 | 2014-06-13 | The draw bail of a kind of track frame and car body and shovel crawler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203920956U (en) |
-
2014
- 2014-06-13 CN CN201420317418.0U patent/CN203920956U/en not_active Expired - Fee Related
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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: 20141105 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |