Rotor casting device capable of pre-controlling dynamic balance

Abstract

The utility model belongs to the technical field of casting equipment, and particularly relates to a rotor casting device capable of pre-controlling dynamic balance, which comprises a base and a support frame fixedly connected onto the base, an annular top plate is fixedly connected onto a support rod at the top of the support frame, and a protective cylinder is rotatably connected to the center of the annular top plate. And a rotating disc is fixedly connected to the bottom of the protection barrel, a hydraulic telescopic rod is installed in the center of the rotating disc, an output shaft of the hydraulic telescopic rod extends to the position below the rotating disc and is fixedly provided with a circular plate, and a plurality of drilling mechanisms distributed in an annular array mode are installed on the circular plate. Different types of drilling mechanisms are arranged on the circular plate, drilling machining of different rotor unit bodies can be coped, only the rotating disc needs to be rotated during switching, the different drilling mechanisms are rapidly switched, targeted operation is achieved, and the problems that at the present stage, a casting drilling device is low in efficiency and cannot meet the drilling requirements of different hole diameters are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to casting equipment technical field, concretely is a rotor casting device of precontrol dynamic balance. BACKGROUND

[0002] Rotor is the main part of high -speed rotation in power machinery or working machinery such as motor, vacuum pump, generator, gas turbine and turbine compressor, wherein, the rotor of screw rod vacuum pump is directly casted out first when processing, then does dynamic balance, finds out the point of unbalance, punches on these point positions, carries out weight proportioning, completes the dynamic balance of rotor, and further guarantees the balance performance in the process of rotation of rotor, before punching the rotor, the weight of each rotor unit body (the sector body of rotor) is needed to calculate, the weight value of the weight needed to reduce of each rotor unit body is calculated, and then the shape and size of the weight-reducing hole of rotor end are determined, so the punching shape and size of different rotor unit bodies are not the same, when needing to punch the different rotor unit bodies, different size and model drill bits need to be used, and frequent replacement is used, which is time -consuming and labor -intensive, leads to the casting device not being able to quickly punch the rotor, and the efficiency is low, the time cost is high, the rotor cannot be quickly punched and casted, and there are certain disadvantages and deficiencies, so improvement is needed. SUMMARY

[0003] (I) the technical problem solved

[0004] In view of the deficiencies of the prior art, the utility model provides a rotor casting device of precontrol dynamic balance, different types of drilling mechanisms are arranged on the circular plate, the drilling of different rotor unit bodies can be processed, only the rotating turntable is needed when switching, different drilling mechanisms are switched quickly, targeted operation is carried out, the problem that the casting drilling device is low in efficiency and cannot meet the drilling needs of different hole diameters is solved.

[0005] (II) technical scheme

[0006] The utility model discloses a specific technical scheme in order to realize the above-mentioned purpose:

[0007] A pre-controlled dynamic balancing rotor casting device includes a base and a support frame fixedly connected to the base. An annular top plate is fixedly connected to a support rod at the top of the support frame. A protective cylinder is rotatably connected to the center of the annular top plate, and a turntable is fixedly connected to the bottom of the protective cylinder. A hydraulic telescopic rod is installed at the center of the turntable. The output shaft of the hydraulic telescopic rod extends to the bottom of the turntable and is fixed to a circular plate. Multiple drilling mechanisms are installed on the circular plate in a circular array. Each drilling mechanism includes a second motor fixedly connected to the circular plate and a rotating shaft located at the end of the output shaft of the second motor. A drill bit is provided on a positioning sleeve at the bottom of the rotating shaft, and the drill bits in each drilling mechanism are of different sizes.

[0008] Furthermore, a pneumatic chuck is fixedly connected to the upper surface of the base, and a rotor body is provided on the pneumatic chuck.

[0009] Furthermore, the protective cylinder includes a cylinder body fixedly connected to the center of the upper surface of the turntable, and a load-bearing bearing is provided at the connection between the top of the cylinder body and the annular top plate. The protective cylinder also includes a motor mounted on the annular top plate, and the output shaft of the motor body extends to the bottom of the annular top plate and is provided with a drive gear. A toothed chain meshes between the drive gear and the driven gear on the cylinder body.

[0010] Furthermore, a plurality of limiting rods are fixedly connected to the lower surface of the turntable, and the limiting rods are inserted into the corresponding limiting holes opened in the circular plate.

[0011] (III) Beneficial Effects

[0012] Compared with the prior art, this utility model provides a rotor casting device with pre-controlled dynamic balancing, which has the following beneficial effects:

[0013] This invention features an annular top plate with a protective cylinder rotatably connected to the center of the annular bottom. A turntable is fixed at the bottom of the protective cylinder, and a hydraulic telescopic rod is installed at the center of the turntable. This allows the circular plate to extend and retract, enabling drilling of the rotor via a drilling mechanism. When drilling is required for different types of rotors, the drive motor operates, causing the cylinder to rotate and rotating the turntable and circular plate. The corresponding drilling mechanism then drills the rotor. This method can handle drilling of different rotors, ensuring rotor balance and stability. Targeted drilling allows for dynamic balancing of the rotor, guaranteeing its balanced rotation. Each rotor can be specifically cast without changing drill bits, improving processing efficiency, reducing operation time, and ensuring processing results. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the protective cylinder in this utility model;

[0016] Figure 3 This is a schematic diagram of the drilling mechanism in this utility model.

[0017] In the diagram: 1. Base; 2. Pneumatic chuck; 3. Rotor body; 4. Circular plate; 5. Turntable; 6. Support frame; 7. Support rod; 8. Hydraulic telescopic rod; 9. Annular top plate; 10. Protective cylinder; 1001. Cylinder body; 1002. Driven gear; 1003. Load-bearing bearing; 1004. Motor 1; 1005. Drive gear; 1006. Gear chain; 11. Limiting rod; 12. Drilling mechanism; 1201. Motor 2; 1202. Rotating shaft; 1203. Positioning sleeve; 1204. Drill bit. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Example

[0020] like Figure 1 and Figure 3As shown in the figure, an embodiment of the present invention provides a rotor casting device for pre-controlled dynamic balancing, including a base 1 and a support frame 6 fixedly connected to the base 1. The base 1 is the bottom support part of the device. An annular top plate 9 is fixedly connected to the support rod 7 at the top of the support frame 6. The annular top plate 9 has an annular design with a hollow structure in the middle. A protective cylinder 10 is rotatably connected to the center of the annular top plate 9, and a turntable 5 is fixedly connected to the bottom of the protective cylinder 10, so that the turntable 5 can rotate and the angle can be adjusted. A hydraulic telescopic rod 8 is installed at the center of the turntable 5. The output shaft of the hydraulic telescopic rod 8 extends to the bottom of the turntable 5 and is fixed to a circular plate 4, driving the circular plate 4 to extend and retract. A circular array of components is installed on the circular plate 4. The circular plate 4 has multiple drilling mechanisms 12. When the circular plate 4 is extended or retracted, the drilling mechanism 12 can be used to drill holes in the rotor. The drilling mechanism 12 includes a second motor 1201 fixedly connected to the circular plate 4 and a rotating shaft 1202 located at the end of the output shaft of the second motor 1201. A drill bit 1204 is provided on the positioning sleeve 1203 at the bottom of the rotating shaft 1202. The second motor 1201 can drive the rotating shaft 1202 to rotate, and then the drill bit 1204 is used to drill holes in the rotor. The drill bits 1204 in each drilling mechanism 12 are of different sizes, which can be used to process holes of different sizes. This can handle the processing operations of different types of rotor units, making the weight of the rotor units nearly equal and the rotation more stable.

[0021] like Figure 1 As shown, in some embodiments, a pneumatic chuck 2 is fixedly connected to the upper surface of the base 1, and a rotor body 3 is provided on the pneumatic chuck 2. The rotor body 3 is fixed by means of the pneumatic chuck 2, which facilitates the fixing and removal of the rotor body 3 and facilitates the drilling operation of the rotor body 3.

[0022] like Figure 1 and Figure 2 As shown, in some embodiments, the protective cylinder 10 includes a cylinder 1001 fixedly connected to the center of the upper surface of the turntable 5, and a load-bearing bearing 1003 is provided at the connection between the top of the cylinder 1001 and the annular top plate 9, so that the cylinder 1001 can rotate stably. The annular top plate 9 plays a load-bearing role, allowing the cylinder 1001 to rotate on the annular top plate 9. The protective cylinder 10 also includes a motor 1004 mounted on the annular top plate 9, and the output shaft of the motor 1004 extends to the bottom of the annular top plate 9 and is provided with a drive gear 1005. A gear chain 1006 meshes between the drive gear 1005 and the driven gear 1002 on the cylinder 1001. The motor 1004 can drive the drive gear 1005 to rotate, and then drive the driven gear 1002 to rotate through the gear chain 1006, so as to realize the rotation of the cylinder 1001 on the annular top plate 9.

[0023] like Figure 1As shown, in some embodiments, a plurality of limiting rods 11 are fixedly connected to the lower surface of the turntable 5, and the limiting rods 11 are inserted into the corresponding limiting holes of the circular plate 4; this method can play a limiting role for the circular plate 4, ensuring the stability of the circular plate 4 in lifting and rotating, and has good smoothness.

[0024] The working principle and usage steps of this utility model are as follows: During use, the corresponding rotor body 3 is fixed on the pneumatic chuck 2 of the base 1. A corresponding drilling mechanism 12 is used to drill holes in the rotor body 3 as required. The drilling mechanism 12 is rotated above the rotor body 3. During operation, the drive motor 1004 operates, driving the active gear 1005 to rotate. The active gear 1005 drives the passive gear 1002 to rotate via the gear chain 1006, thereby rotating the cylinder 1001, the turntable 5, and the circular plate 4. Then, the drilling mechanism 12 is moved above the rotor body 3, driving the second motor 1201 within the drilling mechanism 12 to operate, causing the rotating shaft 1202 to rotate and the drill bit 1204 to rotate. Simultaneously, the hydraulic telescopic rod 8 drives the circular plate 4 downwards, allowing it to slide along the limit rod 11. The drill bit 1204 then drills holes in the rotor body 3, providing targeted processing with high efficiency and quality.

[0025] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A rotor casting device with pre-controlled dynamic balancing, comprising a base (1) and a support frame (6) fixedly connected to the base (1), characterized in that: An annular top plate (9) is fixedly connected to the support rod (7) at the top of the support frame (6). A protective cylinder (10) is rotatably connected to the center of the annular top plate (9), and a turntable (5) is fixedly connected to the bottom of the protective cylinder (10). A hydraulic telescopic rod (8) is installed at the center of the turntable (5). The output shaft of the hydraulic telescopic rod (8) extends to the bottom of the turntable (5) and is fixed with a circular plate (4). Multiple drilling mechanisms (12) arranged in a circular array are installed on the circular plate (4). The drilling mechanism (12) includes a second motor (1201) fixedly connected to the circular plate (4) and a rotating shaft (1202) set at the end of the output shaft of the second motor (1201). A drill bit (1204) is set on the positioning sleeve (1203) at the bottom of the rotating shaft (1202), and the drill bit (1204) in each drilling mechanism (12) is of different sizes.

2. The rotor casting device with pre-controlled dynamic balancing according to claim 1, characterized in that: A pneumatic chuck (2) is fixedly connected to the upper surface of the base (1), and a rotor body (3) is provided on the pneumatic chuck (2).

3. The rotor casting device with pre-controlled dynamic balancing according to claim 1, characterized in that: The protective cylinder (10) includes a cylinder body (1001) fixedly connected to the center of the upper surface of the turntable (5), and a load-bearing bearing (1003) is provided at the connection between the top of the cylinder body (1001) and the annular top plate (9). The protective cylinder (10) also includes a motor (1004) mounted on the annular top plate (9), and the output shaft of the motor (1004) extends to the bottom of the annular top plate (9) and is provided with a drive gear (1005). A toothed chain (1006) meshes between the drive gear (1005) and the driven gear (1002) on the cylinder body (1001).

4. The rotor casting device with pre-controlled dynamic balancing according to claim 1, characterized in that: The lower surface of the turntable (5) is fixedly connected with a plurality of limiting rods (11), which are inserted into the limiting holes corresponding to those opened on the circular plate (4).

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