Movable multistage pump rotor fixing device
By designing a movable multi-stage pump rotor fixing device, the fixing frame, universal wheel, slider, slider and worm gear mechanism are used to solve the problems of fixed instability and position offset during rotor grinding, and efficient multi-angle trimming and safe operation are achieved.
Patent Information
- Application Number
- CN202422036784.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-22
- Publication Date
- 2025-07-18
- Estimated Expiration
- 2034-08-22
AI Technical Summary
There is an inappropriate fixation method during the grinding process of multi-stage pump rotor, resulting in inaccurate deviation of the grinding position, high labor intensity and operational safety hazards, reducing operating efficiency.
A movable multi-stage pump rotor fixing device is designed, using a fixing frame, universal wheel, slider, slider, drum and drive assembly, and the stable fixation and multi-angle trimming of the rotor are achieved through the worm and worm gear mechanism.
The rotor is stable and fixed and multi-angle trimming are achieved, the accuracy and efficiency of grinding operations are improved, and labor intensity and safety hazards are reduced.
Smart Images
Figure CN223114917U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of the fixation of a multi-stage rotor pump, in particular to a movable multi-stage pump rotor fixing device. Background Technique
[0002] At present, after the multi-stage pump rotor completes the balance test, it is necessary to trim the impeller on the rotor to remove the unbalance amount by grinding operation or to perform runner trimming. Generally, the rotor is only placed on the ground for grinding operation. The squatting operation position is uncomfortable, the labor intensity is high, and there are potential safety hazards in the operation. The rotor cannot be effectively fixed, resulting in inaccurate grinding position deviation; at the same time, some rotors are simply fixed on the fixing frame, and the rotor needs to be ground 360°. This fixing method is difficult to adjust the grinding position of the rotor, thereby reducing the operation efficiency. For this reason, we provide a movable multi-stage pump rotor fixing device. Content of the Utility Model
[0003] To solve the above problems, that is, to solve the problems raised in the above background technique, the utility model provides a movable multi-stage pump rotor fixing device, which includes a fixing frame. Universal wheels are installed at the bottom dead corners of the fixing frame. Two sliding rods are fixedly arranged between the two vertical plates of the fixing frame. The two sliding rods are arranged in parallel, and sliding blocks are slidably arranged on both sides of the outer walls of the two sliding rods. Fixing plates are fixedly arranged at the tops of the two sliding blocks. Corresponding rotating cylinders are rotatably arranged inside the two fixing plates. A driving component is arranged on one side of one of the rotating cylinders. A double-headed screw is rotatably arranged between the two vertical plates of the fixing frame, and the double-headed screw is arranged above the two sliding rods. The two sliding blocks are respectively threadedly connected to both sides of the outer wall of the double-headed screw.
[0004] Preferably, the driving component includes a protective shell. The protective shell is fixed to one side of one of the fixing plates away from the rotating cylinder. A worm is rotatably arranged in the inner cavity of the protective shell. A worm gear is meshed with the outer wall of the worm. The worm gear is fixedly connected to the closed end of the corresponding rotating cylinder, and a handle is fixedly arranged at one end of the worm.
[0005] Preferably, the inner cavity of the rotating cylinder is set as a cavity with different diameters in a stepped shape to facilitate fitting with rotors of different diameters.
[0006] Preferably, a hand wheel is fixedly arranged at one end of the double-headed screw to facilitate driving the double-headed screw to rotate.
[0007] The beneficial technical effect of the utility model is that when it is necessary to rotate the rotor, the handle can be manually driven to rotate. At this time, the rotating worm can drive the worm gear to rotate, and under the fixation of the two rotating cylinders, the worm gear can drive the rotor to rotate through the rotating cylinder, so as to perform multi-angle trimming on the rotation and the impeller, which has certain practicability. Brief Description of the Drawings
[0008] Figure 1 It shows a three-dimensional structural schematic diagram of the present utility model.
[0009] Figure 2 It shows a side cross-sectional structural schematic diagram at the protective shell of the present utility model.
[0010] Figure 3 It shows a cross-sectional structural schematic diagram at the rotating drum of the present utility model.
[0011] Reference numerals in the drawings: 1, fixed frame; 2, universal wheel; 3, sliding rod; 4, slider; 5, fixed plate; 6, rotating drum; 7, double-headed screw; 8, handwheel; 9, protective shell; 10, worm; 11, worm gear; 12, handle. Detailed Description of the Preferred Embodiments
[0012] The following describes the preferred embodiments of the present utility model with reference to the drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principle of the present utility model and are not intended to limit the protection scope of the present utility model.
[0013] The present utility model provides a movable multi-stage pump rotor fixing device, which includes a fixed frame 1. Universal wheels 2 are installed at the bottom dead corners of the fixed frame 1. Two sliding rods 3 are fixedly arranged between the two vertical plates of the fixed frame 1. The two sliding rods 3 are arranged in parallel, and sliders 4 are slidably arranged on both sides of the outer walls of the two sliding rods 3. The design of the sliding rods 3 can limit the movement of the sliders 4. Fixed plates 5 are fixedly arranged at the tops of the two sliders 4. Corresponding rotating drums 6 are rotatably arranged inside the two fixed plates 5. The movement of the sliders 4 can drive the rotating drums 6 to move horizontally through the fixed plates 5, and the rotor can be fixed under the clamping of the two rotations. A driving component is arranged on one side of one of the rotating drums 6. The driving component can drive the rotating drum 6 to rotate, thereby changing the fixing angle of the rotor. A double-headed screw 7 is rotatably arranged between the two vertical plates of the fixed frame 1, and the double-headed screw 7 is arranged above the two sliding rods 3. The two sliders 4 are respectively threadedly connected to both sides of the outer wall of the double-headed screw 7. The rotation of the double-headed screw 7 can control the two sliders 4 to move away from or close to each other, thereby indirectly driving the two rotating drums 6 to fix the rotor.
[0014] Specifically, the driving component includes a protective shell 9. The protective shell 9 is fixed to the side of one of the fixed plates 5 away from the rotating drum 6. A worm 10 is rotatably arranged in the inner cavity of the protective shell 9. A worm gear 11 is meshed with the outer wall of the worm 10. The worm gear 11 is fixedly connected to the closed end of the corresponding rotating drum 6, and a handle 12 is fixedly arranged at one end of the worm 10. By manually driving the handle 12 to rotate, the rotating worm 10 can drive the worm gear 11 to rotate at this time. Under the fixation of the two rotating drums 6, the worm gear 11 can drive the rotor to rotate through the rotating drum 6, and thus the rotation and the impeller can be trimmed at multiple angles.
[0015] Specifically, the inner cavity of the rotary drum 6 is set as a stepped cavity with different diameters, so as to fit with rotors of different diameters. Its design purpose is that multiple stepped cavities with different diameters can be designed according to rotors of different specifications, thereby increasing the applicable range of rotor fixation while ensuring the fixation stability of the rotor.
[0016] Working principle: Due to the different specifications of the rotors, when fixing the rotors, the handwheel 8 is driven according to the length of the rotor, and the rotating double-headed screw 7 can drive the two sliders 4 to approach or move away from each other. When the distance between the two rotary drums 6 is slightly larger than the length of the rotor, one end of the rotor can be inserted into the inner cavity of one of the rotors, and the handwheel 8 is continuously rotated to make the two rotary drums 6 approach each other. At this time, both ends of the rotor are respectively inserted into the inner cavities of the two rotary drums 6. At the same time, under the action of the double-headed screw 7, the two rotary drums 6 can tightly press and fix the rotor. Subsequently, the impeller on the rotor can be trimmed. When the rotor needs to be rotated, it can be rotated manually by driving the handle 12. At this time, the rotating worm 10 can drive the worm wheel 11 to rotate. With the fixation of the two rotary drums 6, the worm wheel 11 can drive the rotor to rotate through the rotary drum 6, and thus the rotation and the impeller can be trimmed at multiple angles. This operation mode replaces the original non-fixed and single fixation, making the whole working process more efficient.
[0017] Although the present utility model has been described with reference to the preferred embodiments, various improvements can be made to it and components therein can be replaced with equivalents without departing from the scope of the present utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present utility model is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.
[0018] In the description of the present utility model, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., which indicate directions or position relationships, are based on the directions or position relationships shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.
[0019] In addition, it should be noted that in the description of the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" shall be construed in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0020] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device comprising a series of elements includes not only those elements but also other elements not expressly listed, or also includes elements inherent in these processes, articles, or apparatus / devices.
[0021] So far, the technical solution of the present utility model has been described in conjunction with the preferred embodiments shown in the drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present utility model is obviously not limited to these specific embodiments. Without departing from the principle of the present utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of the present utility model.
Claims
1. A movable multi-stage pump rotor fixing device, including a fixing frame (1), and universal wheels (2) are installed at the bottom dead corners of the fixing frame (1), and it is characterized in that: Two sliding rods (3) are fixedly arranged between the two vertical plates of the fixing frame (1). The two sliding rods (3) are arranged in parallel, and sliders (4) are slidably arranged on both sides of the outer walls of the two sliding rods (3). Fixed plates (5) are fixedly arranged at the tops of the two sliders (4). Corresponding rotating cylinders (6) are rotatably arranged inside the two fixed plates (5). A driving component is arranged on one side of one of the rotating cylinders (6). A double-headed screw rod (7) is rotatably arranged between the two vertical plates of the fixing frame (1), and the double-headed screw rod (7) is arranged above the two sliding rods (3). The two sliders (4) are respectively threadedly connected to both sides of the outer wall of the double-headed screw rod (7).
2. The movable multi-stage pump rotor fixing device according to claim 1, characterized in that: The driving component includes a protective shell (9). The protective shell (9) is fixed to one side of one of the fixed plates (5) away from the rotating cylinder (6). A worm (10) is rotatably arranged in the inner cavity of the protective shell (9). A worm gear (11) is meshed with the outer wall of the worm (10). The worm gear (11) is fixedly connected to the closed end of the corresponding rotating cylinder (6), and a handle (12) is fixedly arranged at one end of the worm (10).
3. A movable multi-stage pump rotor fixing device according to claim 1, characterized in that: The inner cavity of the rotating cylinder (6) is arranged as a cavity with different diameters in a stepped shape to facilitate fitting with rotors of different diameters.
4. A movable multi-stage pump rotor fixing device according to claim 1, characterized in that: A hand wheel (8) is fixedly arranged at one end of the double-headed screw rod (7) to facilitate driving the double-headed screw rod (7) to rotate.