CN208472535U - A kind of damping drill steel pin assembly for quartering hammer - Google Patents
A kind of damping drill steel pin assembly for quartering hammer Download PDFInfo
- Publication number
- CN208472535U CN208472535U CN201820886016.0U CN201820886016U CN208472535U CN 208472535 U CN208472535 U CN 208472535U CN 201820886016 U CN201820886016 U CN 201820886016U CN 208472535 U CN208472535 U CN 208472535U
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- CN
- China
- Prior art keywords
- drill steel
- steel pin
- shock
- absorbing sleeve
- pin
- 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.)
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Abstract
The utility model relates to a kind of damping drill steel pin assemblies for quartering hammer, including drill steel pin and shock-absorbing sleeve, the drill steel pin includes drill steel pin ontology, the both ends of the drill steel pin ontology are respectively equipped with shoulder, the shock-absorbing sleeve is socketed on the shoulder, the wall thickness of the shock-absorbing sleeve lower part is greater than the wall thickness on the shock-absorbing sleeve top, and the lower edge of the shock-absorbing sleeve protrudes from the lower edge of the drill steel pin ontology；When drill steel impacts downwards, position-limit mechanism on drill steel contacts the top of drill steel pin first, drill steel pin moves down, the shock-absorbing sleeve lower compression at drill steel pin both ends deforms, the lower edge of shock-absorbing sleeve is when compression is concordant as the lower edge of drill steel pin, the lower edge of drill steel pin can just impact lower case, the speed of drill steel is decreased much at this time, since the lower part of shock-absorbing sleeve is thicker, accumulation of energy is larger, the impact force of drill steel can be reduced to a greater extent, increased the service life of drill steel and lower case, improved the reliability of quartering hammer.
Description
Technical field
The utility model relates to a kind of drill steel pin assembly for quartering hammer, in particular to a kind of dampings for quartering hammer
Drill steel pin assembly.
Background technique
Quartering hammer is widely used in the engineerings such as the broken, Building demolition of road.Existing quartering hammer include rear nitrogen room,
Lower case and drill steel, the drill steel are mounted on the lower end of the lower case, and the rear nitrogen room is mounted on the upper end of lower case, described
Drill steel is mounted in lower case, and the lower case is stretched out in the lower end of the drill steel, be symmetrical arranged in the lower case there are two
Drill steel pin, the drill steel pin is for limiting drill steel high-low limit position.Nitrogen room includes upper housing, runs through bolt and cylinder after described,
The cylinder includes that cylinder body and piston make the drill steel hard object of quick elliptical gear downwards, reach brokenly by drill steel described in piston impact
Broken purpose.But when drill steel quickly moves downwards, inertia force is very big, by taking breaking up stone as an example, in stone rupture moment drill steel
With very big inertia force, continue impact downwards, and at this time since stone ruptures, drill steel is idle stroke, is needed by drill steel pin
It limits drill steel to fall, the impact force that drill steel pin is born is very big, largely effects on the service life of drill steel pin；In addition, if operation
When fault leads to drill steel impact missing, the impact that two drill steel pins are born is bigger, it is easier to fracture, due between drill steel pin and lower case
For rigid connection, huge impact can not be buffered, drill steel pin is not only easy to cause to lose, it is also possible to led to casing rupture, be crushed
Hammer damage.
Drill steel pin is mounted on lower case by the drill steel pin hole in lower case, according between drill steel pin hole and drill steel pin
Increase shock-absorbing sleeve or resilient cushion, in the case where not changing drill steel pin size, it is necessary to change the size of existing drill steel pin hole, lead to
It is not strong with property；If first reducing the size of drill steel pin, then upper shock-absorbing sleeve is covered in its periphery, it is contemplated that using uniform wall thickness
Shock-absorbing sleeve, the shock-absorbing sleeve accumulation of energy being made into this way is less, does not have good buffering effect.
Utility model content
The utility model in view of the deficiency of the prior art, provides a kind of damping, buffering effect and is preferably used for brokenly
The damping drill steel pin assembly of broken hammer.
The technical solution that the utility model solves above-mentioned technical problem is as follows: a kind of damping drill steel pin for quartering hammer is total
At, including drill steel pin and shock-absorbing sleeve, the drill steel pin include drill steel pin ontology, the both ends of the drill steel pin ontology are respectively equipped with platform
Shoulder, the shock-absorbing sleeve are socketed on the shoulder, and the wall thickness of the shock-absorbing sleeve lower part is greater than the wall thickness on the shock-absorbing sleeve top, and
The lower edge of the shock-absorbing sleeve protrudes from the lower edge of the drill steel pin ontology；It is mounted on shell when by the drill steel pin assembly
When, the lower edge of the shock-absorbing sleeve is lower than the lower edge of the drill steel pin ontology.
The beneficial effects of the utility model are: the position-limit mechanism on drill steel contacts drill steel first when drill steel impacts downwards
The top of pin, drill steel pin move down, and the shock-absorbing sleeve lower compression deformation at drill steel pin both ends, the lower edge of shock-absorbing sleeve is until compression
As for drill steel pin lower edge it is concordant when, the lower edge of drill steel pin can just impact lower case, and the speed of drill steel has dropped at this time
Much lower, since the lower part of shock-absorbing sleeve is thicker, accumulation of energy is larger, can reduce the impact force of drill steel to a greater extent, increase drill steel and
The service life of lower case improves the reliability of quartering hammer.
Further, the shock-absorbing sleeve uses elastic material.
Further, the central axis of the drill steel pin ontology and the shoulder misplaces up and down；And the drill steel pin ontology
The central axis of central axis and the shock-absorbing sleeve outer profile misplaces up and down, in the central axis of the shoulder and the shock-absorbing sleeve
The central axis in hole is aligned；When the drill steel pin assembly is mounted in the lower case of quartering hammer, the central axis of the shoulder
Positioned at the top of the drill steel pin body central axis.
Beneficial effect using above-mentioned further technical solution is: in the ruler for not changing the drill steel pin hole in existing lower case
When very little, drill steel pin is made into eccentric structure, the thickness of shock-absorbing sleeve lower part can be increased to the full extent, improve the accumulation of energy of shock-absorbing sleeve
Effect further improves the service life of drill steel pin and lower case.
Further, the upper edge of the shock-absorbing sleeve is concordant with the upper edge of the drill steel pin ontology.
Further, the shoulder is equipped with the first limit pin hole, and the shock-absorbing sleeve is equipped with and first limit pin hole
Corresponding second limit pin hole, first limit pin hole and second limit pin hole are in class ellipse, and described the
The lower-upper length of one limit pin hole and the second limit pin hole is greater than its left and right width.
Further, the cross section of the drill steel pin ontology and the shoulder is respectively class ellipse.
Further, the class ellipse includes two opposite vertical straight lines, and the both ends of two vertical straight lines lead to respectively
Cross circular sliding slopes.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the main view of the utility model；
Fig. 3 is the structural schematic diagram of drill steel pin in the utility model；
Fig. 4 is the structural schematic diagram of shock-reducing sleeve in the utility model.
In the accompanying drawings, list of designations represented by each label is as follows: 1, drill steel pin, 1-1, drill steel pin ontology, 1-11,
The lower edge of drill steel pin ontology, the upper edge of 1-12, drill steel pin ontology, 1-2, shoulder, 1-21, the first limit pin hole, 2, damping
Set, 2-1, the second limit pin hole, the lower edge of 2-2, shock-absorbing sleeve, the upper edge of 2-3, shock-absorbing sleeve.
Specific embodiment
The principles of the present invention and feature are described below in conjunction with attached drawing, example is served only for explaining that this is practical
It is novel, it is not intended to limit the scope of the utility model.
As Figure 1-Figure 2, a kind of damping drill steel pin assembly for quartering hammer, including drill steel pin 1 and shock-absorbing sleeve 2, institute
Stating drill steel pin 1 includes drill steel pin ontology 1-1, and the both ends of the drill steel pin ontology 1-1 are respectively equipped with shoulder 1-2, the shock-absorbing sleeve 2
It is socketed on the shoulder 1-2, the wall thickness of 2 lower part of shock-absorbing sleeve is greater than the wall thickness on the shock-absorbing sleeve top, and the damping
The lower edge 2-2 of set is lower than the lower edge 1-11 of the drill steel pin ontology；And the upper edge 2-3 of the shock-absorbing sleeve and the drill steel
The upper edge 1-12 for selling ontology is concordant.
The central axis of the drill steel pin ontology 1-1 and the shoulder 1-2 misplace up and down；And the drill steel pin ontology 1-1
Central axis and the central axis of 2 outer profile of shock-absorbing sleeve misplace up and down, the central axis of the shoulder 1-2 subtracts with described
The central axis alignment of shake 2 inner holes of set.
The shoulder 1-2 is equipped with the first limit pin hole 1-21, and the shock-absorbing sleeve 2 is equipped with and first limit pin hole
1-2 corresponding second limit pin hole 2-1, the first limit pin hole 1-21 and the second limit pin hole 2-1 are in that class is ellipse
Circle, and the lower-upper length of the first limit pin hole 1-21 and the second limit pin hole 2-1 are greater than its left and right width；The drill steel
The cross section of the pin ontology 1-1 and shoulder 1-2 is respectively class ellipse；The class ellipse includes two opposite vertical straight
Line, and the both ends of two vertical straight lines pass through circular sliding slopes respectively.
The distance between the central axis of 2 outer profile of the drill steel pin ontology 1-1 and the shock-absorbing sleeve is denoted as L, and L generally exists
Between 1~10mm, the size of lower edge of the lower edge of the shock-absorbing sleeve 2 apart from the drill steel pin ontology 1-1 is generally 2~
20mm。
For example, the maximum outside diameter of the drill steel pin pin hole on shell is 100mm in the prior art, and existing drill steel pin is most
Big outer diameter is also 100mm, when the top of drill steel impact drill steel pin, the lower end of drill steel pin and the direct rigid shock of shell, and punching
It is larger to hit dynamics；For the impact force for buffering drill steel pin and shell, the size of the maximum outside diameter of drill steel pin ontology is changed to 92mm, pricker
The both ends of lever pin ontology 1-1 are respectively equipped with the shoulder 1-2, and shock-absorbing sleeve 2, the size of shock-absorbing sleeve 2 are socketed on the shoulder 1-2
It is adapted with the size of existing drill steel pin pin hole, maximum outside diameter is also 100mm, and the maximum outside diameter of shoulder is 75mm, on shoulder
Upper edge of the edge apart from drill steel pin ontology is 6mm, and lower edge of the lower edge of shoulder 1-2 apart from drill steel pin ontology 1-1 is
11mm, the upper end wall thickness of shock-absorbing sleeve 2 are 6mm, and lower end wall thickness is 19mm；When drill steel impacts drill steel pin ontology 1-1, drill steel pin 1
Under the buffering of shock-absorbing sleeve 2, first retarded motion 8mm, then drill steel pin ontology 1-1 could contact shell, carry out rigid shock, and
The speed of drill steel pin ontology 1-1 will have dropped much at this time, and 2 lower end wall thickness of shock-absorbing sleeve is thicker, and energy storage effect is better, therefore by shoulder
1-2 is offset up, and improves the lower end wall thickness of shock-absorbing sleeve 2 to greatest extent.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (5)
1. a kind of damping drill steel pin assembly for quartering hammer, which is characterized in that including drill steel pin and shock-absorbing sleeve, the drill steel pin
Including drill steel pin ontology, the both ends of the drill steel pin ontology are respectively equipped with shoulder, and the shock-absorbing sleeve is socketed on the shoulder, institute
The wall thickness for stating shock-absorbing sleeve lower part is greater than the wall thickness on the shock-absorbing sleeve top, and the lower edge of the shock-absorbing sleeve protrudes from the drill steel
Sell the lower edge of ontology.
2. the damping drill steel pin assembly according to claim 1 for quartering hammer, which is characterized in that the drill steel pin ontology
It misplaces up and down with the central axis of the shoulder.
3. the damping drill steel pin assembly according to claim 1 for quartering hammer, which is characterized in that the shock-absorbing sleeve it is upper
Edge is concordant with the upper edge of the drill steel pin ontology.
4. the damping drill steel pin assembly according to claim 1-3 for quartering hammer, which is characterized in that described
Shoulder is equipped with the first limit pin hole, and the shock-absorbing sleeve is equipped with the second limit pin hole corresponding with first limit pin hole,
First limit pin hole and second limit pin hole are in class ellipse, and first limit pin hole and the second spacer pin
The lower-upper length in hole is greater than its left and right width.
5. the damping drill steel pin assembly according to claim 1-3 for quartering hammer, which is characterized in that the pricker
The cross section of lever pin ontology and the shoulder is respectively class ellipse.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820886016.0U CN208472535U (en) | 2018-06-07 | 2018-06-07 | A kind of damping drill steel pin assembly for quartering hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820886016.0U CN208472535U (en) | 2018-06-07 | 2018-06-07 | A kind of damping drill steel pin assembly for quartering hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208472535U true CN208472535U (en) | 2019-02-05 |
Family
ID=65216855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820886016.0U Expired - Fee Related CN208472535U (en) | 2018-06-07 | 2018-06-07 | A kind of damping drill steel pin assembly for quartering hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208472535U (en) |
-
2018
- 2018-06-07 CN CN201820886016.0U patent/CN208472535U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |