Nodular cast iron bent axle shrinkage porosity defect prevention device
Technical Field
The utility model relates to a defect prevention device relates to bent axle equipment technical field, concretely relates to nodular cast iron bent axle shrinkage porosity defect prevention device.
Background
The crankshaft is one of the key parts of the automobile engine, and the quality of the crankshaft directly influences the quality and the service life of the automobile engine. The crankshaft is mostly produced by casting nodular cast iron, the nodular cast iron crankshaft is cast by an iron mold sand coating process, and during casting, as the connecting rod and the main shaft of the crankshaft model are provided with cavities, cores must be placed during production, the cast crankshaft casting can form artificial thermal nodes, the cast crankshaft casting can generate shrinkage porosity defects, the defects can cause the produced crankshaft casting to be scrapped due to disqualification, the scrapping proportion is up to 40%, and huge damage is brought to enterprises. The following problems exist in the prior art:
1. the defect prevention device has the problems that when the existing crankshaft device is used, spare parts are easy to loosen due to too high rotating speed, and vibration is generated in the rotating process, so that the possibility of loosening is enhanced;
2. when a crankshaft in a machine is operated during use of some conventional crankshaft devices, the crankshaft is subjected to pressure applied by centrifugal force under the action of rotation, so that the crankshaft is easily damaged.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of providing a nodular cast iron crankshaft shrinkage porosity defect prevention device, one of which aims to provide a neck rod fixedly connected, a main journal connected, a vibration conduction rod, a vibration offset rod and a fixed conduction rod, and solves the problems that the existing crankshaft device is easy to loose spare parts due to too fast rotating speed in the using process, and vibration is generated in the turning process, thereby enhancing the possibility of loosening; another purpose is in order to solve current crankshaft device when using, when moving the bent axle of machine inside, the bent axle can receive the pressure that centrifugal force exerted under rotatory effect, causes the damaged problem to the bent axle easily to reach and can be when moving the bent axle, the bent axle can not produce the breakage because of the centrifugal force that the rotation produced, makes the bent axle can shift pivoted centrifugal force, can have better operating mass.
In order to solve the technical problem, the utility model discloses the technical scheme who adopts is:
the utility model provides a nodular cast iron bent axle shrinkage porosity defect prevention device, includes the bent axle main part, the inboard fixed mounting of bent axle main part has first footpath, the inboard fixed mounting in first footpath has the connection neck board, the inboard fixed mounting of connecting the neck board has the steel sheet of connection, the inboard fixed mounting of steel sheet of connection has the connection back axle journal.
The utility model discloses technical scheme's further improvement lies in: the inboard fixed mounting who connects the back axle journal has the fixed connection neck pole, the inboard fixed mounting of fixed connection neck pole has fixed front axle footpath, the inboard fixed mounting in fixed front axle footpath has first connecting rod axle footpath, the inboard fixed mounting in first connecting rod axle footpath has the connection main journal.
The utility model discloses technical scheme's further improvement lies in: the elastic line fixing shaft is fixedly mounted at the upper end and the lower end of the inner wall of the connected rear shaft neck, a centrifugal ball is fixedly connected to the inner side of the elastic line fixing shaft and connected with an elastic line, a connecting fixing shaft is fixedly mounted in the middle of the elastic line fixing shaft and located on the inner wall of the connected rear shaft neck, and a rotating fixing shaft is movably mounted on the inner side of the connecting fixing shaft.
The utility model discloses technical scheme's further improvement lies in: the centrifugal release ball is characterized in that a connecting rotary rod is fixedly installed on the inner side of the rotary fixing shaft, a centrifugal release ball is fixedly installed on the inner side of the connecting rotary rod, and one end, connected with an elastic line, of the centrifugal release ball is fixedly connected to the surface of the centrifugal release ball.
The utility model discloses technical scheme's further improvement lies in: fixed conduction pole is installed at both ends fixed mounting about the inner wall of connecting the main journal, the inboard fixed mounting of fixed conduction pole has vibrations conduction pole.
The utility model discloses technical scheme's further improvement lies in: the inboard fixed mounting of vibrations conduction pole has vibrations to offset the pole, both ends fixed mounting is on the inner wall of connecting the main journal about vibrations offset the pole.
Owing to adopted above-mentioned technical scheme, the utility model discloses relative prior art, the technological progress who gains is:
1. the utility model provides a nodular cast iron bent axle shrinkage porosity defect prevention device, through the design exquisiteness, adopt the fixed connection neck pole, connect the main shaft neck, vibrations conduction pole, vibrations offset the pole, fixed conduction pole combines, conveniently solve current bent axle device in the use, because the rotational speed is too fast, lead to spare parts to produce easily not hard up, and at the in-process that arrives, can produce vibrations, the problem of not hard up possibility has been strengthened again, can not produce easily at the pivoted in-process by reaching and become flexible, and can offset the vibrations that produce out, and then improve equipment's result of use.
2. The utility model provides a nodular cast iron bent axle shrinkage porosity defect prevention device, release the ball through adopting the centrifugation, connect the rotary rod, rotatory fixed axle, the elastic line is connected to the centrifugal ball, elastic line fixed axle, connect the fixed axle combination setting, can realize solving current bent axle device when using, when moving the bent axle of machine inside, the bent axle can receive the pressure that centrifugal force was applyed under rotatory effect, cause damaged problem to the bent axle easily, in order to reach and can be when moving the bent axle, the bent axle can not produce the breakage because of the centrifugal force that the rotation produced, make the bent axle can shift pivoted centrifugal force, can have better operating mass.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic front view of the structure of the present invention;
FIG. 3 is a schematic view of the expanded structure of the connected rear axle journal of the present invention;
fig. 4 is a schematic view of the expansion structure of the main journal.
In the figure: 1. a crankshaft main body; 2. connecting steel plates; 3. a first shaft diameter; 4. fixing the front shaft diameter; 5. a first link shaft diameter; 6. connecting the steel neck plate; 7. connecting the rear shaft neck; 8. the neck rod is fixedly connected; 9. connecting the main journal; 10. centrifugally releasing the balls; 11. connecting a rotating rod; 12. rotating the fixed shaft; 13. the centrifugal ball is connected with an elastic line; 14. a spring line fixing shaft; 15. connecting a fixed shaft; 16. a vibration conduction rod; 17. a shock-counteracting rod; 18. the conductive rod is fixed.
Detailed Description
The present invention will be described in further detail with reference to the following examples:
example 1
As shown in fig. 1-3, the utility model provides a nodular cast iron bent axle shrinkage porosity defect prevention device, including bent axle main part 1, bent axle main part 1's inboard fixed mounting has first diameter of axle 3, the inboard fixed mounting of first diameter of axle 3 has connection neck plate 6, the inboard fixed mounting of connecting neck plate 6 has steel connecting plate 2, steel connecting plate 2's inboard fixed mounting has connection back axle journal 7, the inboard fixed mounting of connecting back axle journal 7 has fixed connection neck bar 8, the inboard fixed mounting of fixed connection neck bar 8 has fixed front axle diameter 4, the inboard fixed mounting of fixed front axle diameter 4 has first connecting rod axle diameter 5, the inboard fixed mounting of first connecting rod axle diameter 5 has connection main journal 9.
In the present exemplary embodiment, the connection neck plate 6 is connected to the crankshaft body 1 via the first shaft diameter 3 arranged thereon, the connection steel plate 2 is connected to the first shaft diameter 3 via the connection neck plate 6 arranged thereon, the connection rear journal 7 is connected to the connection neck plate 6 via the connection steel plate 2 arranged thereon, and the fixed connection neck 8 is connected to the connection steel plate 2 via the connection rear journal 7 arranged thereon.
Example 2
As shown in fig. 1-3, on the basis of embodiment 1, the utility model provides a technical solution: the upper end and the lower end of the inner wall of the connected rear journal 7 are fixedly provided with elastic line fixing shafts 14, the inner side of each elastic line fixing shaft 14 is fixedly connected with a centrifugal ball to be connected with an elastic line 13, the inner wall of the connected rear journal 7 is fixedly provided with a connecting fixing shaft 15 in the middle of the elastic line fixing shaft 14, the inner side of the connecting fixing shaft 15 is movably provided with a rotating fixing shaft 12, the inner side of the rotating fixing shaft 12 is fixedly provided with a connecting rotating rod 11, the inner side of the connecting rotating rod 11 is fixedly provided with a centrifugal release ball 10, and one end of the centrifugal ball connected with the elastic line 13 is fixedly connected to the surface of the centrifugal release ball 10.
Preferably, the centrifugal releasing ball 10 can shift and collapse the centrifugal force generated when the crankshaft rotates, so that the crankshaft is not broken by the centrifugal force generated by the rotation, and the centrifugal ball connecting elastic line 13 has a certain tension elasticity and can connect and fix the centrifugal releasing ball 10 so that the centrifugal releasing ball does not deviate from the position.
Example 3
As shown in fig. 1-3, on the basis of embodiment 1 and embodiment 2, the utility model provides a technical solution: fixed conducting rods 18 are fixedly mounted at the upper end and the lower end of the inner wall of the main journal 9, vibration conducting rods 16 are fixedly mounted on the inner sides of the fixed conducting rods 18, vibration canceling rods 17 are fixedly mounted on the inner sides of the vibration conducting rods 16, and the left end and the right end of each vibration canceling rod 17 are fixedly mounted on the inner wall of the main journal 9.
Preferably, the vibration canceling lever 17 can cancel vibration generated during rotation.
The working principle of the nodular cast iron crankshaft shrinkage porosity defect prevention device is described in detail below.
As shown in fig. 1-3, when the crankshaft inside the machine is operated, the centrifugal release ball, the connecting rotary rod, the rotary fixing shaft, the centrifugal ball connecting elastic line, the elastic line fixing shaft and the connecting fixing shaft inside the rear journal 7 are combined to be arranged, so that the crankshaft is not broken by the centrifugal force generated by rotation when the crankshaft is operated, the crankshaft can transfer the rotating centrifugal force, the centrifugal ball connecting elastic line 13 has certain tension elasticity and can be connected and fixed with the centrifugal release ball 10 so as not to deviate from the position, and then the vibration transmission rod 16, the vibration counteracting rod 17 and the fixed transmission rod 18 inside the main journal 9 are combined to ensure that the equipment cannot be easily loosened in the rotating process and the generated vibration is counteracted, thereby improving the use effect of the equipment.
The present invention has been described in detail with reference to the above general description, but it will be apparent to one of ordinary skill in the art that modifications and improvements can be made to the invention. Therefore, modifications or improvements without departing from the spirit of the invention are within the scope of the invention.