CN214980340U - Single impeller device of impeller head - Google Patents
Single impeller device of impeller head Download PDFInfo
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- CN214980340U CN214980340U CN202121592067.0U CN202121592067U CN214980340U CN 214980340 U CN214980340 U CN 214980340U CN 202121592067 U CN202121592067 U CN 202121592067U CN 214980340 U CN214980340 U CN 214980340U
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- impeller
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Abstract
The utility model relates to a single impeller device of impeller head. The double-impeller device mainly solves the problems that the double-impeller device of the existing impeller head is large in part number, heavy in weight and capable of reducing the working efficiency of the impeller head. The method is characterized in that: a plurality of blades (1) are uniformly fixed on one side wall of the impeller disc (5), wherein one side of each blade (1) is provided with a convex blade connector (6), a clamping groove (7) is formed in the side wall of the impeller disc (5), and the blade connectors (6) are embedded in the clamping grooves (7). The single impeller device of the shot blasting machine reduces the number of parts, thereby reducing the processing cost, improving the processing precision, lightening the weight, saving the electric energy and improving the working efficiency of the shot blasting machine.
Description
Technical Field
The utility model relates to the field of machinary, a single impeller device of impeller head specifically says so.
Background
At present, impeller devices of shot blasting machines at home and abroad mostly adopt double impellers, namely two impeller disks are connected together by 4 or 3 connecting pin shafts in the middle according to equal distribution, and 8, 6 or 4 blades are arranged in the middle perpendicular to the impeller disks in equal distribution. Years of practice prove that the structure of the double impeller has the following four defects: (1) when the shot blasting machine works, a high-speed fan-shaped working surface formed by throwing shot materials out of the shot distributing wheel through the opening of the directional sleeve is partially shielded by an area with a connecting pin shaft, so that the high-speed thrown fan-shaped steel shot flow working surface is divided into two half areas, and as the steel shots continuously pass through the shielded part, destructive eddy current is formed to influence the working efficiency of the shot blasting machine, and the working efficiency is about 9-13% influenced by comparison. (2) The double-impeller structure has more parts and heavier weight, and a double-impeller device (in a 6-blade structure) has about 30 parts. Because the impeller device is a high-speed rotating part arranged on a motor driving main shaft and is a consumable part which needs to be replaced frequently, in order to prolong the service life of the impeller head, high-quality alloy grinding tool steel is required to be used for manufacturing, the processing difficulty of the grinding tool steel is higher, a plurality of heat treatment processes are required, and the material and manufacturing cost of the double-impeller device is higher. (3) Because the double-impeller device has heavy weight, the high-speed rotating moment of inertia is large, the no-load current consumption is large, and the electric energy is wasted. (4) Because the number of parts is large and the parts are all high-speed rotating parts, the poor machining precision of the parts easily causes vibration and noise caused by motionless balance.
Disclosure of Invention
In order to overcome the not enough of the double-impeller device part quantity of current impeller head many, heavy, the work efficiency who reduces the impeller head, the utility model provides a single-impeller device of impeller head, this single-impeller device of impeller head has reduced part quantity to reduce the processing cost and improve the machining precision, and alleviateed weight, saved the electric energy, improved the work efficiency of impeller head.
The technical scheme of the utility model is that: the single impeller device of the impeller head comprises an impeller disc, wherein a plurality of blades are uniformly fixed on one side wall of the impeller disc, a convex blade connector is arranged on one side of each blade, a clamping groove is formed in the side wall of the impeller disc, and the blade connector is embedded in the clamping groove.
The cross section of the clamping groove is T-shaped or dovetail-shaped, and the cross section of the blade connecting body corresponds to the shape of the clamping groove.
The blades are connected with the impeller disc through screws.
The blades are connected with the impeller disc through spring pins.
The middle part of the impeller disc is connected with a pill separating wheel through a pill separating wheel fixing screw.
The utility model discloses following beneficial effect has: because the single impeller device cancels the connecting pin shaft of the double-impeller structure which influences the working efficiency of the impeller head, the working efficiency of the impeller head is improved by 9 to 13 percent. The single impeller device has the advantages of simplified structure, reduced part number 2/3, and reduced weight 28%, and reduces material cost and manufacture by half compared with a double impeller structure. The single-impeller device has the advantages of high structural processing precision, good dynamic balance, small no-load moment of inertia, small noise due to the matching of a special motor and relatively saved electric energy. The popularization and the application of the device can create considerable economic benefits and good social benefits for users using the shot blasting machine.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
fig. 2 is a front view of the present invention;
fig. 3 is a left side view of the present invention;
FIG. 4 is a cross-sectional view of a blade corresponding to different connections between the impeller disk and the blade, where a is the blade corresponding to a T-slot connection, b is the blade corresponding to a dovetail slot connection, c is the blade corresponding to a screw connection, and d is the blade corresponding to a spring pin connection.
Fig. 5 is a control schematic diagram of six degrees of freedom for mounting the blade according to the present invention.
In the figure, 1-blade, 2-pelleting wheel, 3-pelleting wheel fixing screw, 4-pelleting wheel positioning screw, 5-impeller disc, 6-blade connector and 7-clamping groove.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1 to 4, a single impeller device of a shot blasting machine comprises an impeller disc 5, wherein a plurality of blades 1 are uniformly fixed on the side wall of one side of the impeller disc 5, and the number of the blades 1 is 6 or 8. Wherein, one side of the blade 1 is provided with a convex blade connector 6, the side wall of the impeller disc 5 is provided with a clamping groove 7, and the blade connector 6 is embedded in the clamping groove 7, thereby connecting the blade 1 on the impeller disc 5. The section of the clamping groove 7 can be T-shaped or dovetail-shaped, and the section of the blade connecting body 6 corresponds to the shape of the clamping groove 7. The cross section of the clamping groove can be rectangular, and the blade 1 and the impeller disc 5 can be connected through a screw or a spring pin. The impeller disc 5 is provided with a pill separating wheel 2 in the middle, the pill separating wheel 2 is fixed at the end part of the main shaft of the motor through a pill separating wheel fixing screw 3, and a pill separating wheel positioning screw 4 is connected between the pill separating wheel 2 and the impeller disc 5.
The impeller disc 5 and the blades of most specification impeller heads can be made of Cr12Mo1V1, Cr12MoV or 9CrWMn, and the impeller disc and the blades are processed by a plurality of heat treatments. The impeller of the small impeller (the diameter of the impeller disc is less than 280 mm) impeller of the impeller with low power (less than 18.5 kW) is manufactured by forging 20CrMnMo alloy steel and then carburizing and integrally quenching, wherein the carburized layer is more than 2 mm.
As shown in figure 5, the degree of freedom of the blades 1 in the Z-axis impeller center direction is controlled by a boss of the impeller 2 arranged in the middle of the impeller disc 5, and in order to fix all the blades 1 on the impeller disc 5 to complete a single impeller assembly, three inner hexagon screws are arranged on a 120-degree bisector circle of a small-diameter part of the impeller, and the impeller is fixed on the center of the single impeller.
The single impeller device can be matched with any type of impeller head, whether the impeller head is directly connected or not, and only needs to be processed and manufactured according to the requirement of installation size. The single impeller device is generally not suitable for casting blades and a shot separating wheel because of high assembly precision required by the single impeller device, and no matter which installation form is adopted, a manufacturing process of forging, processing and quenching alloy steel must be adopted.
The described embodiments are only some, but not all embodiments of the patent based on which all other embodiments can be obtained without making new inventive work by the person skilled in the art, and fall within the scope of protection of the patent.
Claims (5)
1. A single impeller device of impeller head, includes impeller dish (5), its characterized in that: a plurality of blades (1) are uniformly fixed on one side wall of the impeller disc (5), wherein one side of each blade (1) is provided with a convex blade connector (6), a clamping groove (7) is formed in the side wall of the impeller disc (5), and the blade connectors (6) are embedded in the clamping grooves (7).
2. The single impeller device of the shot blast apparatus of claim 1, wherein: the section of the clamping groove (7) is T-shaped or dovetail-shaped, and the section of the blade connecting body (6) corresponds to the shape of the clamping groove (7).
3. The single impeller device of the shot blast apparatus of claim 1, wherein: the blades (1) are connected with the impeller disc (5) through screws.
4. The single impeller device of the shot blast apparatus of claim 1, wherein: the blades (1) are connected with the impeller disc (5) through spring pins.
5. Single impeller device of a shot blasting machine according to any of claims 2-4, characterized in that: the middle part of the impeller disc (5) is connected with a pill separating wheel (2) through a pill separating wheel fixing screw (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592067.0U CN214980340U (en) | 2021-07-13 | 2021-07-13 | Single impeller device of impeller head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121592067.0U CN214980340U (en) | 2021-07-13 | 2021-07-13 | Single impeller device of impeller head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214980340U true CN214980340U (en) | 2021-12-03 |
Family
ID=79126515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121592067.0U Active CN214980340U (en) | 2021-07-13 | 2021-07-13 | Single impeller device of impeller head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214980340U (en) |
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2021
- 2021-07-13 CN CN202121592067.0U patent/CN214980340U/en active Active
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