CN204755546U - Locking subassembly of excavator counter weight bolt - Google Patents
Locking subassembly of excavator counter weight bolt Download PDFInfo
- Publication number
- CN204755546U CN204755546U CN201520225327.9U CN201520225327U CN204755546U CN 204755546 U CN204755546 U CN 204755546U CN 201520225327 U CN201520225327 U CN 201520225327U CN 204755546 U CN204755546 U CN 204755546U
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- bolt
- locking
- locking plate
- excavator
- plate body
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Abstract
The utility model discloses a locking subassembly of excavator counter weight bolt, including locking plate body (1) and ribbon (6), locking plate body (1) for plain film form, locking plate body (1) on be equipped with two at least round hole (2), seted up around every round hole (2) a plurality of archs (3), the central line of protruding (3) is through the summit of protruding (3) and the centre of a circle of round hole (2), the central line of two adjacent arch (3) between minimum contained angle be less than 360 income values divided by counter weight bolt (4) the head cross -section polygon limit number by locking. Not only the locking of bolt can be realized, but also the bellied recovering of bending on the locking plate body can be realized preventing to and realize using locking locking plate subassembly to carry out the bolt when locking, no longer with the aid of other spare parts beyond the bolt. (Pbpnum='1' /)
Description
Technical field
The utility model relates to a kind of screw retention device, specifically a kind of counterweight bolt of excavator retention device.
Background technique
Counterweight is excavator key components and parts, plays vital effect to excavator smooth working and inherently safe, and counterweight adopts bolt head to be that polygonal bolt thread Placement is fixed on excavator turntable usually.Excavator operating mode is often relatively more severe, once the bolt of fixed weight occurs to loosen, will cause the even personal injury of serious property loss, therefore, weight bolt is locking significant for excavator.Common weight bolt anti-loose method mainly adds at bolt with the surface of the mate with threaded holes of this bolt the glue that locks, again by specifying that moment is by bolt tightening, but this locking mode is better to mini-excavator weight bolt anti-loosing effect, but for large excavator, because its weight mass is larger, counterweight inertia is just larger, when being vibrated or external force is hit, often more violent, loosening easily appears in weight bolt, another kind of screw retention mode uses locking locking plate, specific practice the bending of locking plate one end is pressed close to weight bolt head side surface, and the bending of the locking plate the other end, press close to turn table body backplate surface or other part surfaces of turntable, although though this locking plate anti-loosing effect is better than the first, but can not prevent locking plate bending from recovering, also need realize locking by other component (as turntable base plate etc.) beyond bolt in addition.
Summary of the invention
For above-mentioned prior art Problems existing, the utility model provides a kind of counterweight bolt of excavator retention device, not only can realize the locking of bolt, but also can realize preventing the bending of locking plate body projection from recovering, and realize when using locking locking plate assembly to carry out screw retention, no longer by means of other component beyond bolt.
To achieve these goals, the technical solution adopted in the utility model is: this kind of counterweight bolt of excavator retention device, comprise locking plate body and band, described locking plate body is plain film shape, described locking plate body is provided with at least two circular holes, the surrounding of each circular hole offers multiple projection, the summit of center line by projection of described projection and the center of circle of circular hole; Between described adjacent two protruding center lines, minimum angle is less than 360 ° divided by by chek bolt head section polygon limit number income value.
Further, described convex shape is gear tooth shape.
Further, between described adjacent two protruding center lines minimum angle be 360 ° divided by by 0.3 to 0.5 times of chek bolt head section polygon limit number income value.
Further, the bottom between described adjacent two projections is provided with circular groove, and this circular groove is with tangent by the concentric circle of chek bolt head polygonal cross-section incircle.
Further, described concentric circle diameter is slightly less than or equals by chek bolt head polygonal cross-section inscribe diameter of a circle.
Compared with prior art, the mode that the utility model is combined by projection, plain film shape locking plate body and band, not only can realize the locking of weight bolt, but also can realize preventing locking locking plate bending from recovering, and realize use locking locking plate carry out weight bolt locking time, no longer by means of other component beyond weight bolt.
Accompanying drawing explanation
Fig. 1 is lock plate structure schematic diagram of the present utility model;
Fig. 2 is assembling schematic diagram of the present utility model;
Fig. 3 is the I place partial enlarged drawing of Fig. 2.
In figure: 1, locking plate body, 2, circular hole, 3, protruding, 4, weight bolt, 5, circular groove, 6, band.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1 to Figure 3, the utility model comprises locking plate body 1 and band 6, described locking plate body 1 is plain film shape, described locking plate body 1 is provided with at least two circular holes 2, the surrounding of each circular hole 2 offers multiple protruding 3, and the described center line of protruding 3 is by the protruding summit of 3 and the center of circle of circular hole 2; Between the center line of described adjacent two projections 3, minimum angle is less than 360 ° divided by by the income value of locking weight bolt 4 head section polygon limit number.
Further, described projection 3 shape is gear tooth shape.
Between the center line of preferred adjacent two projections 3 minimum angle be 360 ° divided by by 0.3 to 0.5 times of locking weight bolt 4 head section polygon limit number income value; Fit with the side of weight bolt 4 head can make more protruding 3 bendings as far as possible in this scope after, play better anti-loosing effect.
Improve as one of the present utility model, the bottom between described adjacent two projections 3 is provided with circular groove 5, and this circular groove 5 is with tangent by the concentric circle of locking weight bolt 4 head polygonal cross-section incircle; Adopt circular groove 5 to design, after being convenient to protruding 3 bendings, can not corner angle be produced, can not scratch staff, in addition, can also prevent that stress is concentrated and destroy locking plate.
Further, described concentric circle diameter is slightly less than or equals by locking weight bolt 4 head polygonal cross-section inscribe diameter of a circle.
The utility model in use, weight bolt 4 is through the circular hole 2 on locking plate body 1, locking plate body 1 is attached to the bottom surface of weight bolt 4 head, after weight bolt 4 tightens, select multiple suitable projection 3 by they side bendings to weight bolt 4 head, make them be close to the side of weight bolt 4 head.Then fence up by the projection 3 of band 6 by weight bolt 4 head and bending and tighten.
Claims (5)
1. a counterweight bolt of excavator retention device, comprise locking plate body (1) and band (6), it is characterized in that, described locking plate body (1) is plain film shape, described locking plate body (1) is provided with at least two circular holes (2), the surrounding of each circular hole (2) offers multiple projection (3), and the center line of described projection (3) is by the protruding summit of (3) and the center of circle of circular hole (2); Between the center line of described adjacent two projections (3), minimum angle is less than 360 ° divided by by the income value of locking weight bolt (4) head section polygon limit number.
2. a kind of counterweight bolt of excavator retention device according to claim 1, is characterized in that, described projection (3) shape is gear tooth shape.
3. a kind of counterweight bolt of excavator retention device according to claim 1 and 2, it is characterized in that, between the center line of described adjacent two projections (3) minimum angle be 360 ° divided by by 0.3 to 0.5 times of locking weight bolt (4) head section polygon limit number income value.
4. a kind of counterweight bolt of excavator retention device according to claim 1 and 2, it is characterized in that, bottom between described adjacent two projections (3) is provided with circular groove (5), and this circular groove (5) is with tangent by the concentric circle of locking weight bolt (4) head polygonal cross-section incircle.
5. a kind of counterweight bolt of excavator retention device according to claim 4, is characterized in that, described concentric circle diameter is slightly less than or equals by locking weight bolt (4) head polygonal cross-section inscribe diameter of a circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225327.9U CN204755546U (en) | 2015-04-14 | 2015-04-14 | Locking subassembly of excavator counter weight bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520225327.9U CN204755546U (en) | 2015-04-14 | 2015-04-14 | Locking subassembly of excavator counter weight bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204755546U true CN204755546U (en) | 2015-11-11 |
Family
ID=54470257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520225327.9U Active CN204755546U (en) | 2015-04-14 | 2015-04-14 | Locking subassembly of excavator counter weight bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204755546U (en) |
-
2015
- 2015-04-14 CN CN201520225327.9U patent/CN204755546U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180426 Address after: 221000 39 Gaoxin Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee after: Xuzhou Xugong Mining Machinery Co., Ltd. Address before: 221000 39 Gaoxin Road, Xuzhou economic and Technological Development Zone, Jiangsu Patentee before: XCMG Excavator Machinery Co., Ltd. |
|
| TR01 | Transfer of patent right |