Anti-drop protection device for centrifugal pump

Abstract

The utility model relates to the technical field of centrifugal pumps, and discloses an anti-drop protection device for a centrifugal pump, which comprises a pump shaft and a shaft sleeve, a mounting sleeve is fixedly sleeved outside the pump shaft, one end of the mounting sleeve is connected with a guide component, and a lock catch component is connected between the mounting sleeve and the shaft sleeve; the lock catch assembly comprises a fixing rod, a cavity is formed in one end of the shaft sleeve, and one end of the fixing rod is fixedly connected to the inner side of the cavity. Compared with the prior art, the anti-falling protection device for the centrifugal pump has the advantages that axial movement and shaking of the shaft sleeve can be effectively prevented, stable connection of the shaft sleeve and the pump shaft is ensured, the fault occurrence probability caused by the connection problem is reduced, and the reliability of the anti-falling protection device for the centrifugal pump is improved; accurate guidance can be provided for the process that the shaft sleeve is installed on the pump shaft, it is ensured that the shaft sleeve is rapidly and accurately installed at the preset position, and the installation efficiency of the centrifugal pump anti-disengaging protection device is improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifugal pump technology, and in particular to a centrifugal pump anti-detachment protection device. Background Technology

[0002] Centrifugal pumps are common fluid transport machines that rely on the centrifugal force generated by the rotation of an impeller to transport liquids. In modern industrial production and daily life, centrifugal pumps are widely used as important fluid transport equipment in many fields such as chemical, petroleum, power, and water supply and drainage. Existing anti-detachment protection devices for centrifugal pumps cannot effectively prevent axial movement and wobbling of the shaft sleeve, resulting in an unstable connection between the shaft sleeve and the pump shaft. This increases the probability of failure due to connection problems, leading to low reliability. Furthermore, they cannot provide precise guidance during the installation of the shaft sleeve onto the pump shaft, making it difficult to ensure that the shaft sleeve is quickly and accurately installed in the intended position, thus reducing installation efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies by proposing a centrifugal pump anti-detachment protection device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a centrifugal pump anti-detachment protection device, comprising a pump shaft and a shaft sleeve, wherein an installation sleeve is fixedly sleeved on the outside of the pump shaft, one end of the installation sleeve is connected to a guide component to improve installation efficiency, and a locking component to improve reliability is connected between the installation sleeve and the shaft sleeve;

[0005] The locking assembly includes a fixed rod, a cavity is opened inside one end of the bushing, one end of the fixed rod is fixedly connected to the inside of the cavity, a movable rod is slidably connected to the other end of the fixed rod, a fixed block is fixedly connected to one end of the movable rod, a spring is fixedly connected to one end of the fixed block, one end of the spring is fixedly connected to the inside of the cavity, and a locking block is fixedly connected to the other end of the fixed block away from the spring.

[0006] As a further description of the above technical solution:

[0007] The locking assembly also includes a connecting block, one end of which is fixedly connected to one end of the mounting sleeve, and the other end of which is fixedly connected to a locking rod. The locking rod has slots on both sides, and one end of the locking block slides inside the slots.

[0008] As a further description of the above technical solution:

[0009] The locking assembly also includes a baffle plate, which is fixedly connected to the top of the cavity. A locking hole is provided inside the baffle plate, and one end of the locking rod slides inside the locking hole.

[0010] As a further description of the above technical solution:

[0011] The guiding assembly includes a guide plate, one end of which is fixedly connected to one end of the mounting sleeve, and a guide groove is provided on the inner side of the bushing.

[0012] As a further description of the above technical solution:

[0013] The guide plate slides inside the guide groove.

[0014] As a further description of the above technical solution:

[0015] The bushing slides outside the pump shaft.

[0016] As a further description of the above technical solution:

[0017] The spring slides outside the fixed rod and the movable rod.

[0018] This utility model has the following beneficial effects:

[0019] 1. In this utility model, the locking assembly can effectively prevent the bushing from moving axially and shaking, ensuring a stable connection between the bushing and the pump shaft, reducing the probability of failure caused by connection problems, and improving the reliability of the anti-detachment protection device for centrifugal pumps.

[0020] 2. In this utility model, the guide component can provide precise guidance for the bushing during the installation process on the pump shaft, ensuring that the bushing is quickly and accurately installed in the predetermined position, thereby improving the installation efficiency of the anti-detachment protection device for centrifugal pumps. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a centrifugal pump anti-detachment protection device proposed in this utility model;

[0022] Figure 2 This is a partial structural diagram of a centrifugal pump anti-detachment protection device proposed in this utility model. Figure 1 ;

[0023] Figure 3 This is a partial structural diagram of a centrifugal pump anti-detachment protection device proposed in this utility model. Figure 2 ;

[0024] Figure 4 for Figure 3 A magnified structural diagram of part B in the middle section;

[0025] Figure 5 for Figure 2 A magnified structural diagram of part A in the middle.

[0026] Legend:

[0027] 1. Pump shaft; 2. Shaft sleeve; 3. Mounting sleeve; 4. Locking assembly; 5. Fixing rod; 6. Cavity; 7. Movable rod; 8. Fixing block; 9. Spring; 10. Locking block; 11. Connecting block; 12. Locking rod; 13. Locking groove; 14. Baffle; 15. Locking hole; 16. Guide assembly; 17. Guide plate; 18. Guide groove. Detailed Implementation

[0028] 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.

[0029] Reference Figures 1-5 The present invention provides an embodiment of a centrifugal pump anti-detachment protection device, comprising a pump shaft 1 and a shaft sleeve 2, wherein an installation sleeve 3 is fixedly sleeved on the outside of the pump shaft 1, one end of the installation sleeve 3 is connected to a guide component 16 for improving installation efficiency, and a locking component 4 for improving reliability is connected between the installation sleeve 3 and the shaft sleeve 2.

[0030] The locking assembly 4 includes a fixed rod 5, a cavity 6 is opened inside one end of the bushing 2, one end of the fixed rod 5 is fixedly connected to the inside of the cavity 6, a movable rod 7 is slidably connected inside the other end of the fixed rod 5, a fixed block 8 is fixedly connected to one end of the movable rod 7, a spring 9 is fixedly connected to one end of the fixed block 8, one end of the spring 9 is fixedly connected to the inside of the cavity 6, and a locking block 10 is fixedly connected to the other end of the fixed block 8 away from the spring 9.

[0031] The locking assembly 4 also includes a connecting block 11, one end of which is fixedly connected to one end of the mounting sleeve 3, and the other end of which is fixedly connected to a locking rod 12. The locking rod 12 has slots 13 on both sides, and one end of the locking block 10 slides inside the slots 13. The locking assembly 4 also includes a baffle 14, which is fixedly connected to the top of the cavity 6. The baffle 14 has a locking hole 15 inside, and one end of the locking rod 12 slides inside the locking hole 15, ensuring the movement path of the locking rod 12. The guide assembly 16 includes a guide plate 17, one end of which is fixedly connected to one end of the mounting sleeve 3. The bushing 2 has a guide groove 18 inside, and the guide plate 17 slides inside the guide groove 18, improving safety accuracy. The bushing 2 slides outside the pump shaft 1, and the spring 9 slides outside the fixed rod 5 and the movable rod 7.

[0032] Working principle: First, sleeve 2 is placed on the outside of pump shaft 1, and sleeve 2 is rotated to align guide groove 18 with guide plate 17, improving installation efficiency. Sleeve 2 continues to move, moving along guide plate 17, allowing one end of locking rod 12 to slide accurately into locking hole 15. Locking rod 12 then presses against locking block 10, which stores elastic potential energy through fixing block 8 pressing spring 9. Simultaneously, fixing block 8 drives movable rod 7 to slide inside fixing rod 5. Then, sleeve 2 is stopped from moving, and locking block 10 aligns with slot 13. Spring 9 releases elastic potential energy, and fixing block 8 drives locking block 10 to slide into slot 13, fixing locking rod 12. This securely installs sleeve 2 on the outside of pump shaft 1, effectively preventing axial movement and shaking of sleeve 2, thus improving reliability.

[0033] All electrical components mentioned in this article are electrically connected to an external main controller and 220V AC mains power. The main controller can be a conventional known device such as a computer for control. The detailed description of known functions and known components is omitted in the specific embodiments disclosed herein. To ensure the compatibility of the device, the operating methods used are consistent with the parameters of commercially available instruments.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for anti-creep protection of a centrifugal pump, comprising a pump shaft (1) and a shaft sleeve (2), characterized in that: The pump shaft (1) is externally fixed with a mounting sleeve (3), one end of the mounting sleeve (3) is connected with a guide assembly (16), and a lock catch assembly (4) is arranged between the mounting sleeve (3) and the shaft sleeve (2). The lock catch assembly (4) comprises a fixed rod (5), one end of the shaft sleeve (2) is internally provided with a cavity (6), one end of the fixed rod (5) is fixedly connected to the inner side of the cavity (6), the other end of the fixed rod (5) is internally and slidably connected with a movable rod (7), one end of the movable rod (7) is fixedly connected with a fixed block (8), one end of the fixed block (8) is fixedly connected with a spring (9), one end of the spring (9) is fixedly connected to the inner side of the cavity (6), and the other end of the fixed block (8) away from the spring (9) is fixedly connected with a clamping block (10).

2. A pump anti-rotation device according to claim 1, characterized in that: The lock catch assembly (4) further comprises a connecting block (11), one end of the connecting block (11) is fixedly connected to one end of the mounting sleeve (3), the other end of the connecting block (11) is fixedly connected with a lock rod (12), clamping grooves (13) are formed on both sides of the lock rod (12), and one end of the clamping block (10) slides in the clamping grooves (13).

3. A pump anti-rotation device according to claim 2, wherein: The lock catch assembly (4) further comprises a baffle (14), the baffle (14) is fixedly connected to the top of the cavity (6), a lock hole (15) is formed in the baffle (14), and one end of the lock rod (12) slides in the lock hole (15).

4. A pump pull-out prevention device for a centrifugal pump according to claim 1, characterized in that: The guide assembly (16) comprises a guide plate (17), one end of the guide plate (17) is fixedly connected to one end of the mounting sleeve (3), and a guide groove (18) is formed in the inner side of the shaft sleeve (2).

5. A pump pull-out prevention device for a centrifugal pump according to claim 4, characterized in that: The guide plate (17) slides in the guide groove (18).

6. A pump pull-out prevention device for a centrifugal pump according to claim 1, characterized in that: The shaft sleeve (2) slides on the outside of the pump shaft (1).

7. A pump run-off prevention device for a centrifugal pump according to claim 1, characterized in that: The spring (9) slides on the outside of the fixed rod (5) and the movable rod (7).

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