CN203972779U - A kind of tooth bar turbine type core-pulling mechanism - Google Patents
A kind of tooth bar turbine type core-pulling mechanism Download PDFInfo
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- CN203972779U CN203972779U CN201420318618.8U CN201420318618U CN203972779U CN 203972779 U CN203972779 U CN 203972779U CN 201420318618 U CN201420318618 U CN 201420318618U CN 203972779 U CN203972779 U CN 203972779U
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Abstract
The tooth bar turbine type core-pulling mechanism that the utility model relates to, comprises two groups of driving mechanisms, two toothed rack, worm screw and for extracting the piece of taking out of fuse; These two groups of driving mechanisms are arranged on the both sides of crankcase core box abreast, and it drives one end of cylinder body to be fixed on crankcase core box by support, the drive rod of these two groups of driving mechanisms all with take out piece and be connected; This two toothed rack separation is in the both sides of crankcase core box, and its one end is fixedly connected with taking out piece, and the other end is arranged on support by limit assembly; This worm screw is arranged on the below of taking out piece, and its two ends with tooth are separately positioned in two toothed rack, and are meshed with the tooth on tooth bar.When the utility model is guaranteed its work by the meshing transmission between tooth bar and worm screw, power source is stable, and fuse is not ftractureed, and has reduced percent defective.Be convenient to the location to fuse simultaneously, reduce to take out piece frictional force between itself and crankcase core box in the process of loosing core, and then improved service life and the production efficiency of crankcase core box.
Description
Technical field
The utility model relates to machinery manufacturing technology field, is specifically related to a kind of tooth bar turbine type core-pulling mechanism being applied on crankcase core box.
Background technology
Crankcase core is extremely important for automobile engine, and in general, the engine of automobile is all in crankcase core, to adopt certain pouring technique, thereby forms automobile engine motor cylinder block.Therefore, the size precision of crankcase core and size had been once all very important prerequisite basis for the engine of automobile.And along with the demand of industrial flow-line, in preparing crankcase core process, everybody also wishes that yield rate is more high better.Crankcase core production process also more and more obtains everybody attention and research.In existing crankcase core production process, the fuse of crankcase core is in general all thicker, and volume is also larger, and generally all finds time in the centre of fuse.Therefore, carry out in process of production crankcase core making accurately and brought huge challenge.
In the existing technology of preparing crankcase core, be all generally that head at fuse is equipped with a cylinder, when crankcase core box is larger, the cylinder volume that it uses is also larger accordingly, and cylinder does not substantially just have place to place like this.And more random in the transmission process due to cylinder, so often can there is crankcase core owing to finding time piece in twitch process, there is cylinder action power unstable, the shake of loosing core, causes that to take out piece stuck, and fuse ftractures.The method also can cause preparation efficiency low, and core waste product is more, often can make to produce to complete on time.Simultaneously because the volume ratio of cylinder is larger, and there is no suitable positioner yet, therefore in production transmitting procedure, easily cause location not accurate yet.
Utility model content
The purpose of this utility model is to provide a kind of tooth bar turbine type core-pulling mechanism for solving the problems of the technologies described above.
A tooth bar turbine type core-pulling mechanism, it is arranged on crankcase core box, for extracting the fuse in crankcase core box; This core-pulling mechanism includes two groups of driving mechanisms, two toothed rack, worm screw and for extracting the piece of taking out of fuse, and this is taken out piece and is fixedly connected with the fuse in crankcase core box by bolt; These two groups of driving mechanisms are arranged on the both sides of crankcase core box abreast, it drives one end of cylinder body to be fixed on crankcase core box by support, the drive rod of these two groups of driving mechanisms all with take out piece and be connected, make this core-pulling mechanism when work, by the stretching motion of drive rod in driving mechanism, realize the loose core effect of piece to crankcase core box of taking out; The separation of this two toothed rack is in the both sides of crankcase core box, and its one end is fixedly connected with taking out piece, and the other end is arranged on support by limit assembly, so that this two toothed rack moves in the horizontal direction in company with the drive rod of driving mechanism; This worm screw is arranged on the below of taking out piece, and its two ends with tooth are separately positioned in two toothed rack, and are meshed with the tooth on tooth bar.
Further, these two groups of driving mechanisms are hydraulic cylinder.
Further, these two groups of hydraulic cylinders are synchronous hydraulic cylinder.
Further, this tooth bar is spur rack, and its length is not less than the length of fuse in this crankcase core box.
Further, this two toothed rack separation is in the outside of two groups of driving mechanisms.
Further, this support and crankcase core box are arranged to integral structure.
A tooth bar turbine type core-pulling mechanism, it is arranged on crankcase core box, for extracting the fuse in crankcase core box; This core-pulling mechanism includes 1 group of driving mechanism, two toothed rack, worm screw and for extracting the piece of taking out of fuse, and this is taken out piece and is fixedly connected with the fuse in crankcase core box by bolt; This driving mechanism is arranged on a side of crankcase core box, it drives one end of cylinder body to be fixed on crankcase core box by support, the drive rod of this driving mechanism with take out piece and be connected, make this core-pulling mechanism when work, by the stretching motion of drive rod in driving mechanism, realize the loose core effect of piece to crankcase core box of taking out; The separation of this two toothed rack is in the both sides of crankcase core box, and its one end is fixedly connected with taking out piece, and the other end is arranged on support by limit assembly, so that this two toothed rack moves in the horizontal direction in company with the drive rod of driving mechanism; This worm screw is arranged on the below of taking out piece, and its two ends with tooth are separately positioned in two toothed rack, and are meshed with the tooth on tooth bar.
Further, this driving mechanism is hydraulic cylinder.
Further, this tooth bar is spur rack, and its length is not less than the length of fuse in this crankcase core box.
Further, this support and crankcase core box are arranged to integral structure.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
Tooth bar turbine type core-pulling mechanism provided by the utility model, structure by two toothed rack and a worm screw arranges, make this core-pulling mechanism when specifically loosing core with driving mechanism, it has guaranteed to take out the stationarity that piece moves in fuse extraction process in to crankcase core box, via the tooth engaged transmission between tooth bar and worm screw, shake prevents from loosing core, thereby guaranteed in the process of loosing core, the fuse in crankcase core box does not ftracture, and has reduced percent defective.Simultaneously, by the engaged transmission between tooth bar and worm screw, make this core-pulling mechanism in the process of loosing core, be convenient to the location to fuse, and accurate positioning, to reduced to take out piece frictional force between itself and crankcase core box in the process of loosing core, and then service life and the production efficiency of crankcase core box have greatly been improved.
Accompanying drawing explanation
Fig. 1 is the structural representation that the utility model provides preferred embodiment middle rack turbine type core-pulling mechanism;
The specific embodiment
For making the purpose of this utility model, technical scheme and advantage more cheer and bright, below in conjunction with the specific embodiment and with reference to accompanying drawing, the utility model is further described.Should be appreciated that, these descriptions are exemplary, and do not really want to limit scope of the present utility model.In addition, in the following description, omitted the description to known configurations and technology, to avoid unnecessarily obscuring concept of the present utility model.
Refer to Fig. 1, tooth bar turbine type core-pulling mechanism 100 of the present utility model is mounted on crankcase core box 200, for extracting the fuse 210 that is positioned at crankcase core box 200.The tooth bar turbine type core-pulling mechanism 100 that the present embodiment preferred embodiment provides comprises two groups of driving mechanisms, 10, two toothed rack 20, worm screw 30 and takes out piece 40 for what extract fuse 210.
Power source when these two groups of driving mechanisms 10 are loosed core for 100 pairs of crankcase core boxes 200 of this core-pulling mechanism, it provides takes out the power that piece 40 extracts fuse 210.The present embodiment for guarantee this core-pulling mechanism 100 in the process of loosing core to the stationarity of moving in fuse 210 extraction processes, in the present embodiment, two of core-pulling mechanism 100 groups of driving mechanisms 10 are hydraulic cylinder, preferably, above-mentioned hydraulic cylinder is synchronous hydraulic cylinder.These two groups of driving mechanisms 10 are arranged on the both sides of crankcase core box 200 abreast, and this compares original front end that cylinder is fixed on to crankcase core box and looses core, and have been convenient to fixing to hydraulic cylinder.In this driving mechanism 10, drive one end of cylinder body 11 to be fixed on crankcase core box 200 by support 50, the drive rod 12 of these two groups of driving mechanisms 10 all with take out piece 40 and be connected, make this core-pulling mechanism 100 when work, by the stretching motion of drive rod 12 in driving mechanism 10, realize the effect of loosing core of taking out 40 pairs of crankcase core boxes 200 of piece.Be appreciated that and above-mentionedly for fixed drive mechanism 10, drive the support 50 of cylinder bodies 11 to be arranged to integral structure with crankcase core box 200.
The present embodiment middle rack 20 is to live apart in the both sides of crankcase core box 200, particularly, can be arranged on the outside of driving mechanism 10.In the present embodiment, preferably, this tooth bar 20 is spur rack, and its length is not less than the length of the interior fuse 210 of this crankcase core box 200.One end of this tooth bar 20 with take out piece 40 and fix, make driving mechanism 10 when drive is taken out piece 40 and moved, its tooth bar 20 is also being followed mobile, and the other end is spacing on support 50 by limit assembly 60, preferably, this limit assembly 60 is arranged to integral structure with support 50.Be appreciated that this limit assembly 60 is when work, restriction tooth bar 20 can only move in the horizontal direction in company with the drive rod 12 of driving mechanism 10.
In the present embodiment, worm screw 30 is to match with tooth bar 20, to ensure that driving mechanism 10 is when drive is taken out 40 pairs of crankcase core boxes 200 of piece and loosed core, the stationarity of its motion.Worm screw 30 in the present embodiment has tooth for two ends, and it is specifically arranged on the below of taking out piece 40, and its two ends with tooth are arranged in two toothed rack 20, and be meshed with tooth on tooth bar 20.
The piece 40 of taking out in this core-pulling mechanism 100 is that drive rod 12 in company with driving mechanism 10 carries out translation, and this two toothed rack 20 is fixed on and takes out on piece 40, can obtain, two toothed rack 20 in the present embodiment are carried out parallel one in company with driving mechanism 10 drive rods 12.Because the tooth of this two toothed rack 20 is to be again meshed with being positioned at the worm screw 30 of taking out piece 40 belows, that is, two ends and two toothed rack 30 in worm screw 30 with tooth form two application points, and 2 shapes in line.Be appreciated that the core-pulling mechanism 100 in the present embodiment has guaranteed to take out piece 40 in the process of loosing core, it takes out steady that piece 40 moves, and, has guaranteed the stability that 100 pairs of crankcase core boxes 200 of this core-pulling mechanism are loosed core that is.Like this core-pulling mechanism in the present embodiment 100 its when being positioned at crankcase core box 200 wherein the driving mechanism 10 of a side damaging, under the interlock transmission of tooth bar 20 and worm screw 30, its needed power of movement of taking out piece 40 is also stably.
As from the foregoing, core-pulling mechanism 100 provided by the utility model is by being linked between tooth bar 20 and worm screw 30, guaranteed to take out in this core-pulling mechanism 100 stationarity in 40 pairs of fuses of piece, 210 twitch processes.So just guaranteed to take out the stationarity that piece 40 moves in interior fuse 210 extraction processes to crankcase core box 200, that is, the shake that prevents from loosing core, thus guaranteed in the process of loosing core, and in crankcase core box, fuse does not ftracture, and has reduced percent defective.While is due to the distance of stretch out and draw back of drive rod 12 in driving mechanism 10, be equal to the relative movement distance of worm screw 30 on tooth bar 20, and worm screw 30 and tooth bar 20 to be engagements by tooth carry out transmission, make like this this core-pulling mechanism 100 easily locate, and locate more accurate, so just reduce to take out the frictional force of piece 40 200 of itself and crankcase core boxes in the process of loosing core, and then greatly improved service life and the production efficiency of crankcase core box 200.
The foregoing is only preferred embodiment of the present invention, be not limited to the utility model, all within spirit of the present utility model and principle, any modification of making, be equal to replacement, improvement etc., within all should being included in the scope of the utility model protection.
Claims (10)
1. a tooth bar turbine type core-pulling mechanism, it is arranged on crankcase core box, for extracting the fuse in crankcase core box; It is characterized in that: this core-pulling mechanism includes two groups of driving mechanisms, two toothed rack, worm screw and for extracting the piece of taking out of fuse, this is taken out piece and is fixedly connected with the fuse in crankcase core box by bolt; These two groups of driving mechanisms are arranged on the both sides of crankcase core box abreast, it drives one end of cylinder body to be fixed on crankcase core box by support, the drive rod of these two groups of driving mechanisms all with take out piece and be connected, make this core-pulling mechanism when work, by the stretching motion of drive rod in driving mechanism, realize the loose core effect of piece to crankcase core box of taking out; The separation of this two toothed rack is in the both sides of crankcase core box, and its one end is fixedly connected with taking out piece, and the other end is arranged on support by limit assembly, so that this two toothed rack moves in the horizontal direction in company with the drive rod of driving mechanism; This worm screw is arranged on the below of taking out piece, and its two ends with tooth are separately positioned in two toothed rack, and are meshed with the tooth on tooth bar.
2. tooth bar turbine type core-pulling mechanism according to claim 1, is characterized in that: these two groups of driving mechanisms are hydraulic cylinder.
3. tooth bar turbine type core-pulling mechanism according to claim 2, is characterized in that: these two groups of hydraulic cylinders are synchronous hydraulic cylinder.
4. tooth bar turbine type core-pulling mechanism according to claim 1, is characterized in that: this tooth bar is spur rack, and its length is not less than the length of fuse in this crankcase core box.
5. tooth bar turbine type core-pulling mechanism according to claim 1, is characterized in that: this two toothed rack separation is in the outside of two groups of driving mechanisms.
6. tooth bar turbine type core-pulling mechanism according to claim 1, is characterized in that: this support and crankcase core box are arranged to integral structure.
7. a tooth bar turbine type core-pulling mechanism, it is arranged on crankcase core box, for extracting the fuse in crankcase core box; It is characterized in that: this core-pulling mechanism includes 1 group of driving mechanism, two toothed rack, worm screw and for extracting the piece of taking out of fuse, this is taken out piece and is fixedly connected with the fuse in crankcase core box by bolt; This driving mechanism is arranged on a side of crankcase core box, it drives one end of cylinder body to be fixed on crankcase core box by support, the drive rod of this driving mechanism with take out piece and be connected, make this core-pulling mechanism when work, by the stretching motion of drive rod in driving mechanism, realize the loose core effect of piece to crankcase core box of taking out; The separation of this two toothed rack is in the both sides of crankcase core box, and its one end is fixedly connected with taking out piece, and the other end is arranged on support by limit assembly, so that this two toothed rack moves in the horizontal direction in company with the drive rod of driving mechanism; This worm screw is arranged on the below of taking out piece, and its two ends with tooth are separately positioned in two toothed rack, and are meshed with the tooth on tooth bar.
8. tooth bar turbine type core-pulling mechanism according to claim 7, is characterized in that: this driving mechanism is hydraulic cylinder.
9. tooth bar turbine type core-pulling mechanism according to claim 7, is characterized in that: this tooth bar is spur rack, and its length is not less than the length of fuse in this crankcase core box.
10. tooth bar turbine type core-pulling mechanism according to claim 7, is characterized in that: this support and crankcase core box are arranged to integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318618.8U CN203972779U (en) | 2014-06-16 | 2014-06-16 | A kind of tooth bar turbine type core-pulling mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420318618.8U CN203972779U (en) | 2014-06-16 | 2014-06-16 | A kind of tooth bar turbine type core-pulling mechanism |
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| CN203972779U true CN203972779U (en) | 2014-12-03 |
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| CN201420318618.8U Active CN203972779U (en) | 2014-06-16 | 2014-06-16 | A kind of tooth bar turbine type core-pulling mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941691A (en) * | 2021-12-21 | 2022-01-18 | 象山同家模具制造有限公司 | Automatic casting mould of loosing core |
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2014
- 2014-06-16 CN CN201420318618.8U patent/CN203972779U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113941691A (en) * | 2021-12-21 | 2022-01-18 | 象山同家模具制造有限公司 | Automatic casting mould of loosing core |
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