CN203007751U - Inner pick arm - Google Patents
Inner pick arm Download PDFInfo
- Publication number
- CN203007751U CN203007751U CN 201220662953 CN201220662953U CN203007751U CN 203007751 U CN203007751 U CN 203007751U CN 201220662953 CN201220662953 CN 201220662953 CN 201220662953 U CN201220662953 U CN 201220662953U CN 203007751 U CN203007751 U CN 203007751U
- Authority
- CN
- China
- Prior art keywords
- hole
- tamping pickaxe
- connecting portion
- holes
- tamping
- 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.)
- Withdrawn - After Issue
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- Machines For Laying And Maintaining Railways (AREA)
Abstract
The utility model discloses an inner pick arm which comprises oil cylinder piston rod connecting parts, box body connecting parts and tamping pick connecting parts, wherein the oil cylinder piston rod connecting parts, the box body connecting parts and the tamping pick connecting parts are connected in sequence. The oil cylinder piston rod connecting parts are provided with oil cylinder piston rod hinge holes, the box body connecting part is provided with box body hinge holes, and the tamping pick connecting part is provided with two tamping pick holes. Clamping grooves extending along the hole wall generatrix directions of the tamping pick holes are formed in the tamping pick connecting parts, the clamping grooves are communicated with corresponding tamping pick holes, and cross through holes are respectively formed in the tamping pick connecting parts and above each tamping pick hole. Cross stress reduction grooves and axial cylindrical pin holes are formed in the top walls of the tamping pick holes of the tamping pick connecting parts, the stress reduction grooves are communicated with the through holes and the tamping pick holes, the axial cylindrical pin holes are communicated with the through holes and the tamping pick holes, and the clamping grooves are further communicated with the corresponding stress reduction grooves and the through holes. The inner pick arm is convenient to manufacture, and capable of improving the stress concentration condition of the inner pick arm, and improving service life.
Description
Technical field
The utility model relates to a kind of structure of pick arm of railway maintenance machinery critical component, particularly tamping unit.
Background technology
Interior pick arm is the critical component of railway maintenance machinery tamping unit, and its Main Function is fixedly tamping pickaxe, transmitting vibrations and chucking power.
The tamping car that uses on China's circuit is mainly to introduce the company from Austrian Plasser, the interior pick arm of taper shape (tamping pickaxe hole) that in it, pick arm configuration uses from D08-32 type tamping car develops into cylindrical (tamping pickaxe hole) interior pick arm that present D09-32 type continuous type tamping car uses, and intensity and the installation way of interior pick arm all are improved and improve.But because existing interior pick arm finished product is divided into welding block and two parts of interior pick arm, carry out machine on welding block, interior pick arm welding position first processes by slotting machine, then welding block is welded on interior pick arm, finally completes the processing of tamping pickaxe hole and pin-and-hole after the flaw detection no problem.This manufacturing process is long, and operation is many, and manufacturing cost is high; And the welding position exists stress to concentrate, and is prone to crackle after long, as to bear enormous impact power and flexural stress tamping operation, affects application life.
Summary of the invention
The purpose of this utility model is to provide a kind of being convenient to make, and the stress concentration status of pick arm in improving improves the interior pick arm in application life.
in order to achieve the above object, the technical solution of the utility model is: a kind of interior pick arm, comprise the cylinder piston rod connecting portion that is connected successively, casing connecting portion and tamping pickaxe connecting portion, described cylinder piston rod connecting portion has the cylinder piston rod hinge hole, described casing connecting portion has the casing hinge hole, described tamping pickaxe connecting portion has two tamping pickaxe holes, has the clamping slot that extends along the hole wall generatrix direction in tamping pickaxe hole on described tamping pickaxe connecting portion, described clamping slot and the hole perforation of corresponding tamping pickaxe, on described tamping pickaxe connecting portion and the top that is positioned at each tamping pickaxe hole is equipped with the lateral direction penetrating hole, have on the tamping pickaxe hole roof of described tamping pickaxe connecting portion and laterally subtract stress groove and axial cylindrical pin-and-hole, the described stress groove that subtracts is communicated with through hole and tamping pickaxe hole, the axial cylindrical pin-and-hole is communicated with through hole and tamping pickaxe hole, described clamping slot also with subtract accordingly stress groove and through hole and be communicated with.
The described axis that subtracts the stress groove has skew with the axis of relative clamping slot.
On described tamping pickaxe connecting portion and be positioned at through hole and have two near the place, both sides in tamping pickaxe hole and add chunk.
On described tamping pickaxe connecting portion and be positioned at side, tamping pickaxe hole and have bolt hole and strut bolt hole, described bolt hole and strut bolt hole and all cross clamping slot.
After adopting said structure, compare with existing interior pick arm, owing to having improved through hole and having subtracted stress groove structure, can realize casting, greatly shortened and simplified technological process, be convenient to make, reduced production cycle and manufacturing cost; Improved simultaneously the stress concentration status of interior pick arm, thus the application life of pick arm in improving.
Because the axis that subtracts the stress groove has skew with the axis of relative clamping slot, therefore, guaranteed the Position Design requirement of axial cylindrical pin-and-hole, subtract simultaneously the stress groove and can be easy to cast out by sand mould casting method.
In addition, due to the existence that adds chunk, the tamping pickaxe hole is not run through by through hole, can alleviate the processing deformation that the tamping pickaxe hole site produces.
Description of drawings
The embodiment that provides below in conjunction with accompanying drawing is described in further detail the utility model.
Fig. 1 is the structural representation of interior pick arm of the present utility model;
Fig. 2 is the right view of Fig. 1;
Fig. 3 is that the B of Fig. 2 is to view;
Fig. 4 is the A-A sectional view of Fig. 2.
The specific embodiment
as Fig. 1, 2, 3, shown in 4, a kind of interior pick arm of the present utility model, comprise the cylinder piston rod connecting portion 1 that is connected successively, casing connecting portion 2 and tamping pickaxe connecting portion 3, described cylinder piston rod connecting portion 1 has cylinder piston rod hinge hole 1-1, described casing connecting portion 2 has casing hinge hole 2-1, described tamping pickaxe connecting portion 3 has two tamping pickaxe hole 3-6, has the clamping slot 3-5 that extends along the hole wall generatrix direction of tamping pickaxe hole 3-6 on described tamping pickaxe connecting portion 3, described clamping slot 3-5 and corresponding tamping pickaxe hole 3-6 connect, on described tamping pickaxe the connecting portion 3 and top that is positioned at each tamping pickaxe hole 3-6 is equipped with lateral direction penetrating hole 3-3, have on the tamping pickaxe hole 3-6 roof of described tamping pickaxe connecting portion 3 and laterally subtract stress groove 3-7 and axial cylindrical pin-and-hole 3-4, the described stress groove 3-7 that subtracts is communicated with through hole 3-3 and tamping pickaxe hole 3-6, axial cylindrical pin-and-hole 3-4 is communicated with through hole 3-3 and tamping pickaxe hole 3-6, described clamping slot 3-5 also with subtract accordingly stress groove 3-7 and through hole 3-3 is communicated with.
As shown in Figure 3, the described axis 3-8 that subtracts stress groove 3-7 has skew with the axis 3-9 of relative clamping slot 3-5.
As shown in Figure 2, on described tamping pickaxe connecting portion 3 and be positioned at through hole 3-3 and have two near place, the both sides of tamping pickaxe hole 3-6 and add chunk 3-2.Like this, just guaranteed the Position Design requirement of axial cylindrical pin-and-hole 3-4, subtracted simultaneously stress groove 3-7 and can be easy to cast out by sand mould casting method.
As shown in Fig. 2,4, on described tamping pickaxe connecting portion 3 and be positioned at 3-6 side, tamping pickaxe hole and have bolt hole 3-10 and strut bolt hole 3-11, described bolt hole 2-10 and strut bolt hole 2-11 and all cross clamping slot 3-5.During use, by being connected of bolt and bolt hole 3-10, tamping pickaxe can be fixed on tamping pickaxe hole 3-6.
Claims (4)
1. pick arm in a kind, comprise the cylinder piston rod connecting portion (1) that is connected successively, casing connecting portion (2) and tamping pickaxe connecting portion (3), described cylinder piston rod connecting portion (1) has cylinder piston rod hinge hole (1-1), described casing connecting portion (2) has casing hinge hole (2-1), described tamping pickaxe connecting portion (3) has two tamping pickaxe holes (3-6), has the clamping slot (3-5) that extends along the hole wall generatrix direction in tamping pickaxe hole (3-6) on described tamping pickaxe connecting portion (3), described clamping slot (3-5) connects with corresponding tamping pickaxe hole (3-6), it is characterized in that: described tamping pickaxe connecting portion (3) upper and top that be positioned at each tamping pickaxe hole (3-6) is equipped with lateral direction penetrating hole (3-3), have on tamping pickaxe hole (3-6) roof of described tamping pickaxe connecting portion (3) and laterally subtract stress groove (3-7) and axial cylindrical pin-and-hole (3-4), the described stress groove (3-7) that subtracts is communicated with through hole (3-3) and tamping pickaxe hole (3-6), axial cylindrical pin-and-hole (3-4) is communicated with through hole (3-3) and tamping pickaxe hole (3-6), described clamping slot (3-5) also with subtract accordingly stress groove (3-7) and through hole (3-3) is communicated with.
2. interior pick arm according to claim 1, it is characterized in that: the described axis (3-8) that subtracts stress groove (3-7) has skew with the axis (3-9) of relative clamping slot (3-5).
3. interior pick arm according to claim 1 is characterized in that: described tamping pickaxe connecting portion (3) is upper and be positioned at through hole (3-3) and have two near the place, both sides in tamping pickaxe hole (3-6) and add chunk (3-2).
4. interior pick arm according to claim 1, it is characterized in that: described tamping pickaxe connecting portion (3) is upper and be positioned at side, tamping pickaxe hole (3-6) and have bolt hole (3-10) and strut bolt hole (3-11), described bolt hole (3-10) and strut bolt hole (3-11) and all cross clamping slot (3-5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662953 CN203007751U (en) | 2012-12-06 | 2012-12-06 | Inner pick arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662953 CN203007751U (en) | 2012-12-06 | 2012-12-06 | Inner pick arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203007751U true CN203007751U (en) | 2013-06-19 |
Family
ID=48599360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220662953 Withdrawn - After Issue CN203007751U (en) | 2012-12-06 | 2012-12-06 | Inner pick arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203007751U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850156A (en) * | 2012-12-06 | 2014-06-11 | 常州市瑞泰工程机械有限公司 | Inner pick arm |
-
2012
- 2012-12-06 CN CN 201220662953 patent/CN203007751U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103850156A (en) * | 2012-12-06 | 2014-06-11 | 常州市瑞泰工程机械有限公司 | Inner pick arm |
| CN103850156B (en) * | 2012-12-06 | 2015-10-28 | 常州市瑞泰工程机械有限公司 | Interior pick arm |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130619 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |