Deep groove ball bearing for propeller current meter

Abstract

The invention provides a deep groove ball bearing for a propeller current meter, and relates to the field of deep groove ball bearings, and the deep groove ball bearing specifically comprises a mounting frame body, a bearing outer ring, a bearing inner ring, a rolling body, a sealing shielding piece, a bearing sealing cover, a heat dissipation observation mechanism and a sealing lubricating mechanism; the bearing outer ring is fixedly connected to the inner side of the mounting frame body; the bearing inner ring is arranged on the inner side of the mounting frame body; the rolling bodies are respectively arranged between the bearing inner ring and the bearing outer ring; the sealing shielding piece is welded at the front end of the bearing outer ring; the waterproof sealing piece is fixedly connected to the front end of the inner side of the sealing shielding piece; the bearing sealing covers are respectively arranged at the front end and the rear end of the inner side of the bearing outer ring; the heat dissipation observation mechanism is arranged on the inner side of the mounting frame body; and the sealing lubricating mechanism is arranged on the inner side of the sealing shielding piece, so that drying maintenance of the bearing is realized, the service life of the bearing is prolonged, and the problems that the bearing is rusted and stable rotation of the bearing is influenced due to long-time contact between the existing bearing and water vapor are solved.

Description

Technical Field

[0001] This invention relates to the field of deep groove ball bearing technology, and particularly to deep groove ball bearings for propeller flowmeters. Background Technology

[0002] Deep groove ball bearings in propeller current meters primarily serve to support and reduce friction. The propeller of a propeller current meter needs to rotate flexibly to accurately measure the speed of water flow. Deep groove ball bearings enable the propeller shaft to rotate smoothly within the bearing, ensuring that the propeller can rotate with minimal resistance under the action of water flow, thereby improving the accuracy of flow velocity measurement. Deep groove ball bearings mainly consist of an outer ring, an inner ring, rolling elements, a cage, and a sealing cap.

[0003] The existing publication number CN113530978B discloses a deep groove ball bearing, including an outer ring, an inner ring, a cage, and steel balls. The cage is disposed between the outer ring and the inner ring, and has pockets on the cage. The steel balls are disposed in the pockets. The cage is divided into two sub-frames, each with a spaced-apart groove. The grooves on the sub-frames combine with grooves on the other sub-frame to form pockets. The sub-frames are further divided into several sub-connectors. Each sub-connector has a first connecting block and a second connecting block at both ends. Each sub-connector has two grooves, and a positioning platform is disposed between the two grooves. The first connecting block engages with the second connecting block on the adjacent sub-connector. A connecting arm is disposed on the positioning platform, and a connecting hole is formed on the platform. The connecting arm is inserted into the connecting hole. This design features a simple structure, convenient installation, higher stability, and improved overall performance and production efficiency.

[0004] However, when using existing propeller current meters with deep groove ball bearings, moisture can easily enter the connection between the bearing and the drive shaft because the propeller current meter is often in a humid environment. Since the connection between the bearing and the drive shaft is relatively narrow, it is difficult for the experimenter to clean the connection after the propeller current meter has been used. This results in the bearing being in contact with moisture for a long time, causing the bearing to rust and affecting the stable rotation of the bearing. Summary of the Invention

[0005] In view of this, the present invention provides a deep groove ball bearing for a propeller current meter, which increases the contact area between the outer ring of the bearing and external water, improves the heat dissipation effect of the entire bearing, enables the entire bearing to maintain high stability during high-speed rotation, provides a reminder to the experimenter to replace the bearing in a timely manner, improves the accuracy of the propeller current meter's detection results, ensures the sealing effect of the entire current meter during use, prevents external water from entering the bearing, prevents water vapor from remaining on the inside of the sealing shield, and allows water vapor to be discharged through the cleaning hole, achieving dry maintenance of the bearing and extending the bearing's service life.

[0006] This invention provides a deep groove ball bearing for a propeller current meter, specifically including a mounting frame, an outer bearing ring, an inner bearing ring, rolling elements, a current meter drive shaft, a sealing shield, a waterproof seal, a bearing sealing cover, a heat dissipation and observation mechanism, and a sealing and lubrication mechanism. The outer bearing ring is fixedly connected to the inner side of the mounting frame; the inner bearing ring is disposed on the inner side of the mounting frame; multiple sets of rolling elements are provided, each set positioned between the inner and outer bearing rings, and each set of rolling elements has a cage structure on its outer side; the current meter drive shaft is interference-fitted to the inner side of the inner bearing ring; the sealing shield is a cylindrical structure welded to the front end of the outer bearing ring; the waterproof seal is fixedly connected to the inner front end of the sealing shield, and is a circular rubber sealing ring structure; two sets of bearing sealing covers are provided, one at the front and one at the rear end of the inner side of the outer bearing ring; the heat dissipation and observation mechanism is disposed on the inner side of the mounting frame; and the sealing and lubrication mechanism is disposed on the inner side of the sealing shield.

[0007] Furthermore, the heat dissipation observation mechanism includes: a first water guide channel; multiple sets of the first water guide channels are provided, and the multiple sets of the first water guide channels are respectively opened on the outside of the sealing shield, and the multiple sets of the first water guide channels are all semi-cylindrical channel structures.

[0008] Furthermore, the heat dissipation observation mechanism also includes a second water guide groove; the second water guide groove is a spiral groove structure with a semi-circular cross-section, and the second water guide groove is opened on the outer periphery of the outer ring of the bearing.

[0009] Furthermore, the heat dissipation observation mechanism also includes: a leakage observation element; the leakage observation element is fixedly connected to the inside of the outer ring of the bearing, a transparent glass observation window structure is provided on the outside of the leakage observation element, a microfiltration membrane structure is provided on the inside of the leakage observation element, and anhydrous copper sulfate powder is filled inside the leakage observation element.

[0010] Furthermore, the sealing and lubrication mechanism includes: cleaning holes and a cleaning heating plate; the cleaning holes are provided in multiple sets, and the multiple sets of cleaning holes are respectively opened on the outside of the sealing and shielding member; the cleaning heating plate is a circular electric heating plate structure, and the cleaning heating plate is fixedly connected to the inside of the sealing and shielding member.

[0011] Furthermore, the sealing and lubrication mechanism also includes: a sealing extrusion member, an extrusion contact member, and a sealing extrusion spring; the sealing extrusion member is slidably connected to the inner side of the sealing shield member; multiple sets of extrusion contact members are provided, and the multiple sets of extrusion contact members are respectively fixedly connected to the front end of the sealing extrusion member, and the multiple sets of extrusion contact members are arranged in a circumferential array; the sealing extrusion spring is fixedly connected to the front end of the outer ring of the bearing, and the front end of the sealing extrusion spring is fixedly connected to the sealing extrusion member.

[0012] Furthermore, the sealing and lubrication mechanism also includes: a sealing drive block and a sealing drive component; the sealing drive block is a ring-shaped magnet structure, and the sealing drive block is fixedly connected to the rear end of the sealing extrusion component; the sealing drive component is an electromagnet structure, the circuit of the sealing drive component is connected in series with the circuit of the cleaning heating plate, the sealing drive component is magnetically connected to the sealing drive block, and the sealing drive component is fixedly connected to the front end of the outer ring of the bearing.

[0013] Furthermore, the sealing and lubrication mechanism also includes a lubrication additive; the lubrication additive is a ring-shaped airbag structure, the lubrication additive is disposed inside the sealing shield, the lubrication additive is provided with a connecting pipe structure, one end of the connecting pipe of the lubrication additive is connected to the interior of the lubrication additive, and the other end of the connecting pipe of the lubrication additive is connected to the interior of the outer ring of the bearing. Beneficial effects

[0014] This invention, through the design of a heat dissipation observation mechanism, directs water flow through the first water guide channel into the inner side of the second water guide channel. The second water guide channel increases the contact area between the outer ring of the bearing and the external water, improving the overall heat dissipation effect of the bearing. This allows the bearing to maintain high stability during high-speed rotation, ensuring the stability of the propeller flow meter's detection results. Furthermore, when the propeller flow meter is used for extended periods, the leak observation device allows for the assessment of whether water has entered the bearing, providing a reminder to the experimenter to replace the bearing promptly, thus improving the accuracy of the propeller flow meter's detection results.

[0015] This invention, through the setting of a sealing and lubrication mechanism, uses a sealing compression spring to compress the sealing compression member forward. The forward movement of the sealing compression member drives the compression contact member forward, which in turn compresses the waterproof seal. The waterproof seal is then compressed and comes into contact with the flow meter's drive shaft, ensuring a sealing effect throughout the flow meter's operation. At the same time, the sealing compression member blocks the cleaning hole, preventing external water from entering the bearing and extending its service life.

[0016] This invention, through the design of a sealing and lubrication mechanism, allows the sealing drive to be activated after the flow meter has been used. The circuit of the sealing drive generates magnetism, attracting the sealing drive block, which moves backward. This backward movement causes the sealing extrusion component to move backward as well, no longer obstructing the cleaning hole. Simultaneously, the extrusion component compresses the lubricant additive, adding grease to the bearing and improving lubrication. The circuit of the sealing drive also connects to the circuit of the cleaning heating plate, generating heat to dry the inside of the sealing shield, preventing moisture residue. The moisture is then discharged through the cleaning hole, achieving dry maintenance of the bearing and extending its service life. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly described below.

[0018] The accompanying drawings described below are only related to some embodiments of the invention and are not intended to limit the invention.

[0019] In the attached diagram: Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present invention.

[0020] Figure 2 This is a schematic diagram of the leakage observation device structure according to an embodiment of the present invention.

[0021] Figure 3 This is a schematic diagram of the second water guide channel structure according to an embodiment of the present invention.

[0022] Figure 4 This is a schematic diagram of the cleaning heating plate structure according to an embodiment of the present invention.

[0023] Figure 5 This is a schematic diagram of the sealing extrusion component structure according to an embodiment of the present invention.

[0024] Figure 6 This is a schematic diagram of the sealing drive structure according to an embodiment of the present invention.

[0025] Figure 7 This is a schematic diagram of the lubrication additive structure according to an embodiment of the present invention.

[0026] Figure 8 This is a schematic diagram of the sealing and lubrication mechanism according to an embodiment of the present invention.

[0027] List of reference numerals 1. Mounting frame; 101. First water guide channel; 102. Second water guide channel; 103. Leakage observation piece; 2. Bearing outer ring; 3. Bearing inner ring; 4. Rolling element; 5. Flow meter drive shaft; 6. Sealing shield; 7. Waterproof seal; 701. Cleaning hole; 702. Cleaning heating plate; 703. Sealing extrusion piece; 704. Extrusion contact piece; 705. Sealing extrusion spring; 706. Sealing drive block; 707. Sealing drive piece; 708. Lubrication additive; 8. Bearing seal cover. Detailed Implementation

[0028] Example 1: Please refer to Figures 1-8 As shown: This invention provides a deep groove ball bearing for a propeller current meter, comprising a mounting frame 1, an outer bearing ring 2, an inner bearing ring 3, rolling elements 4, a current meter drive shaft 5, a sealing shield 6, a waterproof seal 7, a bearing sealing cover 8, and a heat dissipation and observation mechanism; the outer bearing ring 2 is fixedly connected to the inner side of the mounting frame 1; the inner bearing ring 3 is disposed on the inner side of the mounting frame 1; multiple sets of rolling elements 4 are provided, and the multiple sets of rolling elements 4 are respectively disposed between the inner bearing ring 3 and the outer bearing ring 2, and a cage structure is provided on the outer side of each set of rolling elements 4; The flow meter drive shaft 5 is interference-fitted to the inner side of the bearing inner ring 3; the sealing shield 6 is a cylindrical structure and is welded to the front end of the bearing outer ring 2; the waterproof seal 7 is fixedly connected to the inner front end of the sealing shield 6 and is a circular rubber sealing ring structure; two sets of bearing sealing covers 8 are provided, and the two sets of bearing sealing covers 8 are respectively located at the front and rear ends of the inner side of the bearing outer ring 2; the heat dissipation observation mechanism is located inside the mounting frame 1; and the sealing lubrication mechanism is located inside the sealing shield 6.

[0029] The heat dissipation observation mechanism includes: a first water guide channel 101, a second water guide channel 102, and a leakage observation element 103; multiple sets of the first water guide channel 101 are provided, and the multiple sets of the first water guide channel 101 are respectively opened on the outside of the sealing shield 6, and the multiple sets of the first water guide channel 101 are all semi-cylindrical groove structures; the second water guide channel 102 is a spiral groove structure with a semi-circular cross section, and the second water guide channel 102 is opened on the outer periphery of the bearing outer ring 2; the leakage observation element 103 is fixedly connected to the inside of the bearing outer ring 2, and a transparent glass observation window structure is provided on the outside of the leakage observation element 103, a microfiltration membrane structure is provided on the inside of the leakage observation element 103, and the inside of the leakage observation element 103 is filled with anhydrous copper sulfate powder.

[0030] The specific usage and function of this embodiment are as follows: When using a propeller current meter to detect river flow velocity, the water flows through the first guide channel 101 into the inner side of the second guide channel 102. The second guide channel 102 increases the contact area between the outer ring 2 of the bearing and the external water, improving the heat dissipation effect of the entire bearing and enabling the entire bearing to maintain high stability when rotating at high speed, thus ensuring the stability of the propeller current meter's detection results. At the same time, when using the propeller current meter for a long time, the leakage observation piece 103 is used to judge whether water has entered the bearing. If the anhydrous copper sulfate powder inside the leakage observation piece 103 turns blue, it indicates that water has entered the bearing, reminding the experimenter to replace the bearing in time. If the anhydrous copper sulfate powder inside the leakage observation piece 103 does not change, it indicates that the entire bearing is well sealed.

[0031] Example 2: Based on Example 1, such as Figures 1-8 As shown, it also includes The sealing and lubrication mechanism includes: cleaning holes 701, a cleaning heating plate 702, a sealing extrusion member 703, an extrusion contact member 704, a sealing extrusion spring 705, a sealing drive block 706, a sealing drive member 707, and a lubrication additive member 708. Multiple sets of cleaning holes 701 are provided, each set located on the outer side of the sealing shield member 6. The cleaning heating plate 702 is a circular electric heating plate structure, fixedly connected to the inner side of the sealing shield member 6. The sealing extrusion member 703 is slidably connected to the inner side of the sealing shield member 6. Multiple sets of extrusion contact members 704 are provided, each set fixedly connected to the front end of the sealing extrusion member 703, arranged in a circumferential array. The sealing extrusion spring 705 is fixedly connected to the outer ring 2 of the bearing. At the front end, the front end of the sealing compression spring 705 is fixedly connected to the sealing compression member 703; the sealing drive block 706 is a ring-shaped magnet structure, and the sealing drive block 706 is fixedly connected to the rear end of the sealing compression member 703; the sealing drive member 707 is an electromagnet structure, the circuit of the sealing drive member 707 is connected in series with the circuit of the cleaning heating plate 702, the sealing drive member 707 is magnetically connected to the sealing drive block 706, and the sealing drive member 707 is fixedly connected to the front end of the outer ring 2 of the bearing; the lubrication adder 708 is a ring-shaped airbag structure, the lubrication adder 708 is set inside the sealing shield 6, the lubrication adder 708 is provided with a connecting tube structure, one end of the connecting tube of the lubrication adder 708 is connected to the inside of the lubrication adder 708, and the other end of the connecting tube of the lubrication adder 708 is connected to the inside of the outer ring 2 of the bearing.

[0032] The specific usage and function of this embodiment are as follows: When the propeller current meter is in use, under the action of the sealing compression spring 705, the sealing compression member 703 is compressed and moved forward. The forward movement of the sealing compression member 703 drives the compression contact member 704 to move forward. The compression contact member 704 compresses the waterproof seal 7, and the waterproof seal 7 is compressed and fits against the current meter drive shaft 5, ensuring the sealing effect of the entire current meter during use. At the same time, the sealing compression member 703 blocks the cleaning hole 701, preventing external water from entering the bearing. After the entire current meter is used, the sealing drive member 707 is opened, and the circuit of the sealing drive member 707 is connected, generating magnetism. At this time, the sealing drive member 707 realizes the sealing drive... The attraction of the moving block 706 causes the sealing drive block 706 to move backward. The backward movement of the sealing drive block 706 drives the sealing extruder 703 to move backward. The backward movement of the sealing extruder 703 no longer blocks the cleaning hole 701. At the same time, the backward movement of the sealing extruder 703 squeezes the lubricating additive 708. The lubricating additive 708 is squeezed, and the grease inside the lubricating additive 708 is added to the bearing, improving the lubrication effect on the bearing. The circuit connection of the sealing drive block 707 connects the circuit of the cleaning heating plate 702. The circuit connection of the cleaning heating plate 702 generates heat, which dries the inside of the sealing shield 6, preventing water vapor from remaining on the inside of the sealing shield 6. The water vapor is discharged through the cleaning hole 701.

[0033] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0034] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0035] The above are merely specific embodiments of this disclosure, but the scope of protection of this disclosure is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this disclosure should be included within the scope of protection of this disclosure. Therefore, the scope of protection of this disclosure should be determined by the scope of the claims.

Claims

1. A deep groove ball bearing for a propeller current meter, comprising a mounting frame (1), an outer bearing ring (2), an inner bearing ring (3), rolling elements (4), a current meter drive shaft (5), a sealing shield (6), a waterproof seal (7), a bearing sealing cover (8), a heat dissipation observation mechanism, and a sealing lubrication mechanism; characterized in that: The outer ring (2) of the bearing is fixedly connected to the inner side of the mounting frame (1); the inner ring (3) of the bearing is located on the inner side of the mounting frame (1); multiple sets of rolling elements (4) are provided, and multiple sets of rolling elements (4) are respectively located between the inner ring (3) and the outer ring (2) of the bearing, and a cage structure is provided on the outer side of each set of rolling elements (4); the flow meter drive shaft (5) is interference-fitted on the inner side of the inner ring (3) of the bearing; the sealing shield (6) is a cylindrical structure, and the sealing shield (6) is welded to the front end of the outer ring (2) of the bearing; the waterproof seal (7) is fixedly connected to the inner front end of the sealing shield (6), and the waterproof seal (7) is a circular rubber sealing ring structure; two sets of bearing sealing covers (8) are provided, and the two sets of bearing sealing covers (8) are respectively located at the front and rear ends of the inner side of the outer ring (2) of the bearing; the heat dissipation observation mechanism is located on the inner side of the mounting frame (1); the sealing lubrication mechanism is located on the inner side of the sealing shield (6).

2. The deep groove ball bearing for a propeller velocity meter as described in claim 1, characterized in that: The heat dissipation observation mechanism includes: a first water guide groove (101); the first water guide groove (101) is provided in multiple sets, and the multiple sets of first water guide grooves (101) are respectively opened on the outside of the sealing shield (6), and the multiple sets of first water guide grooves (101) are all semi-cylindrical groove structures.

3. The deep groove ball bearing for a propeller velocity meter as described in claim 2, characterized in that: The heat dissipation observation mechanism also includes a second water guide groove (102); the second water guide groove (102) is a spiral groove structure with a semi-circular cross section, and the second water guide groove (102) is opened on the outer periphery of the bearing outer ring (2).

4. The deep groove ball bearing for a propeller velocity meter as described in claim 3, characterized in that: The heat dissipation observation mechanism also includes: a leakage observation component (103); the leakage observation component (103) is fixedly connected to the inside of the bearing outer ring (2), the outer side of the leakage observation component (103) is provided with a transparent glass observation window structure, the inner side of the leakage observation component (103) is provided with a microfiltration membrane structure, and the inside of the leakage observation component (103) is filled with anhydrous copper sulfate powder.

5. The deep groove ball bearing for a propeller velocity meter as described in claim 1, characterized in that: The sealing and lubrication mechanism includes a cleaning hole (701) and a cleaning heating plate (702). The cleaning hole (701) is provided in multiple sets, and the multiple sets of cleaning holes (701) are respectively opened on the outside of the sealing shield (6). The cleaning heating plate (702) is a circular electric heating plate structure, and the cleaning heating plate (702) is fixedly connected to the inside of the sealing shield (6).

6. The deep groove ball bearing for a propeller velocity meter as described in claim 5, characterized in that: The sealing and lubrication mechanism further includes: a sealing extrusion member (703), an extrusion contact member (704), and a sealing extrusion spring (705); the sealing extrusion member (703) is slidably connected to the inner side of the sealing shield member (6); multiple sets of extrusion contact members (704) are provided, and multiple sets of extrusion contact members (704) are respectively fixedly connected to the front end of the sealing extrusion member (703), and multiple sets of extrusion contact members (704) are arranged in a circumferential array; the sealing extrusion spring (705) is fixedly connected to the front end of the bearing outer ring (2), and the front end of the sealing extrusion spring (705) is fixedly connected to the sealing extrusion member (703).

7. The deep groove ball bearing for a propeller velocity meter as described in claim 6, characterized in that: The sealing and lubrication mechanism further includes a sealing drive block (706) and a sealing drive component (707); the sealing drive block (706) is a ring-shaped magnet structure and is fixedly connected to the rear end of the sealing extrusion component (703); the sealing drive component (707) is an electromagnet structure, the circuit of the sealing drive component (707) is connected in series with the circuit of the cleaning heating plate (702), the sealing drive component (707) is magnetically connected to the sealing drive block (706), and the sealing drive component (707) is fixedly connected to the front end of the bearing outer ring (2).

8. The deep groove ball bearing for a propeller velocity meter as described in claim 7, characterized in that: The sealing and lubrication mechanism further includes a lubrication additive (708); the lubrication additive (708) is a circular airbag structure, the lubrication additive (708) is disposed inside the sealing shield (6), the lubrication additive (708) is provided with a connecting pipe structure, one end of the connecting pipe of the lubrication additive (708) is connected to the inside of the lubrication additive (708), and the other end of the connecting pipe of the lubrication additive (708) is connected to the inside of the bearing outer ring (2).

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