CN205437040U - A integrative psammitolite that is used for railway freight car side bearer drawing strickle guide and keeps off key installation face integrated into one piece - Google Patents
A integrative psammitolite that is used for railway freight car side bearer drawing strickle guide and keeps off key installation face integrated into one piece Download PDFInfo
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- CN205437040U CN205437040U CN201521056903.8U CN201521056903U CN205437040U CN 205437040 U CN205437040 U CN 205437040U CN 201521056903 U CN201521056903 U CN 201521056903U CN 205437040 U CN205437040 U CN 205437040U
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- psammitolite
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Abstract
The utility model discloses an integrative psammitolite that is used for railway freight car side bearer drawing strickle guide and keeps off key installation face integrated into one piece, integrative psammitolite comprises psammitolite part A who is used for shaping railway freight car side bearer drawing strickle guide and the psammitolite part B who is used for the shaping to keep off key installation face, psammitolite part B extends and enlarges to containing the part of keeping off key installation face to width direction along its vertical direction for psammitolite part A, psammitolite part A and psammitolite part B constitute an overall structure's psammitolite jointly. The utility model discloses be different from and adopt psammitolite and appearance shaping drawing strickle guide and keep off the process of key installation face respectively, adopt integrative psammitolite shaping side bearer drawing strickle guide and keep off key installation face, promptly through integrative psammitolite complete shaping side bearer drawing strickle guide simultaneously in the lump the shaping side bearer keep off key installation to having guaranteed that the side bearer keeps off the key and installs the no pattern taper of face, step and overlap, effectively having improved the appearance quality and the inner quality that keep off key installation face, working strength is cleared up to alleviateed the repair welding that the appearance shaping brought, polish etc..
Description
Technical field
This utility model belongs to side frame of train wagon casting technology field, particularly to one for side frame of train wagon drawing strickle guide and block key installed surface integrated one core.
Background technology
Side frame of train wagon is the key components and parts of railway freight-car running gear, and in the production of China's side frame foundry goods, its drawing strickle guide uses core molding, and block key installed surface forming method is to use external form molding, as shown in Figure 2.
The method using external form molding block key installed surface, the side frame produced is primarily present and endangers as follows:
One is, during external form molding block key installed surface, die joint, in the middle of block key installed surface, according to the technique of 1 degree of pattern draft, i.e. produces the pattern draft 8 of 1 millimeter as shown in Figure 3, is easy to bolt fastening for this face is smooth, need to increase polishing workload.
Two are, external form is at block key installed surface typing, and during mould assembling, upper and lower case exists mould shift phenomenon, and mould shift produces step 9 as shown in Figure 3 can directly affect block key installation, still needs to polishing and makes installed surface smooth.
Three are, external form is at block key installed surface typing, and upper and lower case exists the tight phenomenon of mould assembling, and the tightest gap of mould assembling forms overlap 10 as shown in Figure 3 during Filling Processes of Castings, solidification forming, this overlap needs to carry out cutting polishing in follow-up scale removal process, increases cleaning work amount.
More than endanger, embody in railway casting production process, bring certain economic loss to railway manufacturing enterprise.
Utility model content
Goal of the invention of the present utility model is: for the problem of above-mentioned existence, there is provided one can improve side frame of train wagon drawing strickle guide and block key installed surface Forming Quality, alleviate the cleaning work intensity such as repair welding, polishing after side frame molding for side frame of train wagon drawing strickle guide and block key installed surface integrated one core.
The technical scheme of this utility model technology is achieved in that for side frame of train wagon drawing strickle guide and block key installed surface integrated one core, it is characterized in that: described one core is made up of core part A for molding railway freight-car side frame guide and core part B for molding block key installed surface, described core part B is that core part A extends along its vertical direction and is extended to comprise the part of block key installed surface to width, described core part A and core part B collectively form an integrally-built core, by described one core block key installed surface of molding side frame in the lump while complete molding side frame guide.
Described in the utility model for side frame of train wagon drawing strickle guide and block key installed surface integrated one core, it is 30～150 millimeters for core thickness that molding block key installed surface is corresponding.
This utility model is different from employing core and external form molding drawing strickle guide and the process of block key installed surface respectively, use one core molding side frame guide and block key installed surface, i.e. by one core on the basis of complete molding side frame guide, molding side frame block key installed surface in the lump, thus ensure that side frame block key installed surface is without pattern draft, step and overlap, it is effectively increased presentation quality and the inherent quality of foundry goods block key installed surface, alleviates the cleaning work intensity such as repair welding, polishing that external form molding brings.
The beneficial effects of the utility model are:
1, side frame of train wagon drawing strickle guide and block key installed surface one core technique, i.e. use one core molding side frame guide and the process of block key installed surface, it is possible to ensureing that side frame guide is stable with block key installed surface relative position relation, size is accurate.
2, the core molding of block key installed surface one, core surface continuous formation, smooth, can be prevented effectively from the problems such as casting pattern draft that the upper and lower type of external form brings, overlap, fash, and foundry goods block key installed surface is smooth, reduces cleaning work.
3, technological requirement operation is conducive to, it is simple to technological requirement position is accurately placed the Modeling Materials such as chill, arbor, chromite sand.
Accompanying drawing explanation
Fig. 1 is side frame of train wagon structural representation.
Fig. 2 is that tradition side frame guide molding uses core procedure to use external form process schematic representation with block key installed surface molding.
Fig. 3 is pattern draft, step and the overlap schematic diagram that tradition block key installed surface molding uses external form technique to produce.
Fig. 4 is for side frame of train wagon drawing strickle guide and block key installed surface integrated one sand core structure schematic diagram in this utility model.
Fig. 5 is side frame guide and block key installed surface integral forming process schematic diagram in this utility model.
Fig. 6 is the fabrication processing figure of one core in this utility model.
Reference in figure: 1 is side frame guide, 2 is block key installed surface, and 3a is core part A, and 3b is core part B, 4a is side frame guide facade loose piece, and 4b is block key installed surface loose piece, and 5 are integrated core core box, and 6 is core box body, 7 is the face of strike-ofing, and 8 is pattern draft, and 9 is step, and 10 is overlap.
Detailed description of the invention
Below in conjunction with the accompanying drawings, this utility model is described in detail.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, this utility model is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain this utility model, is not used to limit this utility model.
nullSuch as Fig. 1、Shown in 4 and 5，A kind of for side frame of train wagon drawing strickle guide and block key installed surface integrated one core，Described one core is made up of core part A3a for molding railway freight-car side frame guide 1 and core part B3b for molding block key installed surface 2，Described core part B3b is that core part A3a extends along its vertical direction and is extended to comprise the part of block key installed surface 2 to width，Core thickness for molding block key installed surface 2 correspondence is 30～150 millimeters，Described core part A3a and core part B3b collectively form an integrally-built core，By described one core block key installed surface of molding side frame in the lump while complete molding side frame guide，Thus avoid the pattern draft using external form molding side frame block key installed surface to be brought、Step and overlap.
Manufacture method of the present utility model, comprises the steps:
A), it is provided for manufacturing the one core loose piece of one core, described one core loose piece is made up of side frame guide facade loose piece 4a and block key installed surface loose piece 4b, described side frame guide facade loose piece 4a and block key installed surface loose piece 4b puts into and forms one core core box 5 after in core box body 6, described one core core box 5, in the case of ensureing core quality and not increasing operation easier, extends along its vertical direction and is extended to comprise block key installed surface 2 part to width.
B), back-up sand, back-up sand in one core core box 5, successively tamping or ram-jolt, make side frame guide 1 corresponding position and the equal consolidation of block key installed surface 2 corresponding position, the height of back-up sand suitably exceeds the face of strike-ofing 7 of core box, scrapes off the residual sand exceeding the face of strike-ofing 7.
C), hardening, after core consolidation, integrally the back-up sand area of core contains side frame guide 1 and block key installed surface 2 corresponding position, and the core thickness formed after described block key installed surface 2 corresponding position back-up sand consolidation is 30～150 millimeters.
D), upset, molding, after core sand is strength hardening, fit with core supporting plate and core box end face, core supporting plate overturns in the stationary state with core box, then molding, mentions core box body 6, leaves the one core loose piece being made up of side frame guide facade loose piece 4a and block key installed surface loose piece 4b.
E), laterally take one core loose piece, respectively side frame guide facade loose piece 4a and block key installed surface loose piece 4b is taken out towards two Slideslips along core supporting plate.
F), coring, take out one core loose piece after, need make the one core for side frame of train wagon drawing strickle guide and block key installed surface i.e. held by core supporting plate, finally carry out swabbing, cleaning work.
The foregoing is only preferred embodiment of the present utility model, not in order to limit this utility model, all any amendment, equivalent and improvement etc. made within spirit of the present utility model and principle, within should be included in protection domain of the present utility model.
Claims (2)
1. for side frame of train wagon drawing strickle guide and block key installed surface integrated one core, it is characterized in that: described one core is by core part A(3a for molding railway freight-car side frame guide (1)) and for core part B(3b of molding block key installed surface (2)) form, described core part B(3b) be core part A(3a) along the extension of its vertical direction the part being extended to comprise block key installed surface (2) to width, described core part A(3a) and core part B(3b) collectively form an integrally-built core, by described one core block key installed surface of molding side frame in the lump while complete molding side frame guide.
It is the most according to claim 1 for side frame of train wagon drawing strickle guide and block key installed surface integrated one core, it is characterised in that: the core thickness corresponding for molding block key installed surface (2) is 30～150 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056903.8U CN205437040U (en) | 2015-12-17 | 2015-12-17 | A integrative psammitolite that is used for railway freight car side bearer drawing strickle guide and keeps off key installation face integrated into one piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521056903.8U CN205437040U (en) | 2015-12-17 | 2015-12-17 | A integrative psammitolite that is used for railway freight car side bearer drawing strickle guide and keeps off key installation face integrated into one piece |
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| Publication Number | Publication Date |
|---|---|
| CN205437040U true CN205437040U (en) | 2016-08-10 |
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| CN201521056903.8U Active CN205437040U (en) | 2015-12-17 | 2015-12-17 | A integrative psammitolite that is used for railway freight car side bearer drawing strickle guide and keeps off key installation face integrated into one piece |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537529A (en) * | 2015-12-17 | 2016-05-04 | 南车眉山车辆有限公司 | Integrated sand core for integrated molding of railway wagon side frame guiding frame and stop key mounting surface as well as production method of integrated sand core |
| CN106938318A (en) * | 2016-11-15 | 2017-07-11 | 北京航星机器制造有限公司 | A kind of resin sand core preparation method for improving back-up sand face dimensional accuracy |
-
2015
- 2015-12-17 CN CN201521056903.8U patent/CN205437040U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105537529A (en) * | 2015-12-17 | 2016-05-04 | 南车眉山车辆有限公司 | Integrated sand core for integrated molding of railway wagon side frame guiding frame and stop key mounting surface as well as production method of integrated sand core |
| CN105537529B (en) * | 2015-12-17 | 2018-07-13 | 中车眉山车辆有限公司 | One kind is for the integrally formed integrated sand core of side frame of train wagon drawing strickle guide and block key mounting surface and its manufacturing method |
| CN106938318A (en) * | 2016-11-15 | 2017-07-11 | 北京航星机器制造有限公司 | A kind of resin sand core preparation method for improving back-up sand face dimensional accuracy |
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