Adjustable directional bearing oiling device

Abstract

The utility model discloses a bearing oiling device of adjustable direction, including bearing, bearing cover, fixed sleeve and movable sleeve, there is the oil supply channel of the oil supply to bearing in bearing cover, and fixed sleeve is linked with bearing cover, and there is the through hole of intercommunication with oil supply channel in fixed sleeve, set up the oil injection hole on movable sleeve, and movable sleeve can rotate relative to fixed sleeve, and the direction of oil injection hole is adjusted when movable sleeve rotates, and the oil storage room is formed between fixed sleeve and movable sleeve, and the oil storage room is annular, and the annular oil storage room keeps intercommunication with through hole and oil injection hole in the process of movable sleeve rotation, the utility model sets up the oil injection hole on movable sleeve, and movable sleeve can rotate to adjust the direction of oil injection hole, and oil injection hole is connected with the oil supply channel in bearing cover through the oil storage room, and the annular oil storage room can keep intercommunication with oil injection hole in the process of movable sleeve rotation.

Description

Technical Field

[0001] This utility model relates to the field of bearing oil injection, and in particular to a bearing oil injection device with adjustable direction. Background Technology

[0002] Motor bearings are core components of motor operation, and their lubrication directly affects the motor's efficiency, lifespan, noise, temperature rise, and even the safe and stable operation of the entire system. Motor bearing lubrication devices serve to maintain lubrication, dissipate heat, and prevent corrosion. However, these devices need to be installed close to the bearing, and in practice, space constraints often make installation inconvenient. Existing bearing lubrication devices are often limited to a few specific locations and cannot be freely adjusted. Therefore, developing an adjustable bearing lubrication device is of significant practical importance. Summary of the Invention

[0003] Purpose of the invention: In order to overcome the shortcomings of the existing technology, this utility model provides an adjustable bearing oil injection device, in which the oil injection hole is set on a movable sleeve, which can rotate to adjust the direction of the oil injection hole; the oil injection hole is connected to the oil supply channel in the bearing cover through an oil storage chamber, and the annular oil storage chamber can maintain communication with the oil injection hole during the rotation of the movable sleeve.

[0004] Technical Solution: To achieve the above objectives, this utility model provides an adjustable bearing oil injection device, comprising a bearing, a bearing cover, a fixed sleeve, and a movable sleeve; the bearing cover has an oil supply channel for supplying oil to the bearing, the fixed sleeve is connected to the bearing cover, and the fixed sleeve has a connecting hole communicating with the oil supply channel; the movable sleeve has an oil injection hole, and the movable sleeve can rotate relative to the fixed sleeve, adjusting the direction of the oil injection hole when the movable sleeve rotates; an oil reservoir is formed between the fixed sleeve and the movable sleeve, the oil reservoir being annular, and during the rotation of the movable sleeve, the annular oil reservoir remains connected to the connecting hole and the oil injection hole.

[0005] Furthermore, an annular groove is provided on the side of the movable sleeve facing the fixed sleeve, or an annular groove is provided on the side of the fixed sleeve facing the movable sleeve, or an annular groove is provided on the opposite sides of the movable sleeve and the fixed sleeve, thereby forming an annular oil storage chamber between the fixed sleeve and the movable sleeve.

[0006] Furthermore, the movable sleeve is fitted over the fixed sleeve, and the inner contour surface of the movable sleeve is sealed to the outer contour surface of the fixed sleeve.

[0007] Furthermore, the movable sleeve has an internal thread structure on its inner contour surface, and the fixed sleeve has an external thread structure on its outer contour surface; the movable sleeve and the fixed sleeve are threaded together, allowing the movable sleeve to rotate relative to the fixed sleeve, and forming a seal between the inner contour surface of the movable sleeve and the outer contour surface of the fixed sleeve.

[0008] Furthermore, an oil injection pipe is inserted into the oil injection hole, and a one-way valve is installed on the oil injection pipe.

[0009] Furthermore, the outer contour surface of the fixed sleeve has an annular groove; the end of the oil injection pipe that is inserted into the oil injection hole is provided with a limiting strip, which extends into the annular groove on the outer contour surface of the fixed sleeve, so that the oil injection hole and the annular groove on the outer contour surface of the fixed sleeve remain opposite.

[0010] Furthermore, both the connecting hole and the oil supply channel are located above the bearing, and the oil in the oil reservoir overflows and enters the oil supply channel through the connecting hole.

[0011] Furthermore, the bearing cover includes an outer bearing cover, a bearing end cover, and an inner bearing cover, and the fixing sleeve is connected to the outer end face of the outer bearing cover.

[0012] Beneficial effects: This utility model provides an adjustable bearing oil injection device. A fixed sleeve is connected to the bearing cover, and a movable sleeve is threaded onto the fixed sleeve. The oil injection hole and oil injection pipe are located on the movable sleeve. Rotating the movable sleeve can adjust the direction of the oil injection pipe, avoiding the difficulty of installing the bearing oil injection device due to space limitations. The fixed sleeve has an annular oil reservoir, which is connected to the oil supply channel in the bearing cover. During the rotation of the movable sleeve, the annular oil reservoir can also maintain communication with the oil injection hole, so that the injected grease can flow to the bearing along the oil injection pipe, oil injection hole, oil reservoir, connecting hole and oil supply channel. Attached Figure Description

[0013] Appendix Figure 1 This is a front view of the bearing oil filling device;

[0014] Appendix Figure 2 A cross-sectional view of the bearing oil injection device;

[0015] Appendix Figure 3 for Figure 2 A magnified view of region A in the middle. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] As attached Figures 1 to 3 The adjustable bearing oil injection device includes a bearing 1, a bearing cover 2, a fixed sleeve 3, and a movable sleeve 4. A rotating shaft 12 is located inside the bearing 1, and the bearing cover 2 is located outside the bearing 1. The bearing cover 2 has an oil supply channel 5 for supplying oil to the bearing 1. (See attached diagram) Figure 2 In the illustrated embodiment, the bearing cover 2 includes an outer bearing cover 201, a bearing end cover 202, and an inner bearing cover 203. Axial holes are provided on both the outer bearing cover 201 and the bearing end cover 202, and the two axial holes combine to form the oil supply channel 5. The fixing sleeve 3 is connected to the bearing cover 2, as shown in the attached figure. Figure 2In the embodiment shown, the fixing sleeve 3 is fixedly connected to the outer end face of the bearing outer cover 201. The fixing sleeve 3 has a connecting hole 6 that communicates with the oil supply channel 5; the connecting hole 6 is also an axial hole.

[0018] An oil injection hole 7 is provided on the movable sleeve 4, which can rotate relative to the fixed sleeve 3. The direction of the oil injection hole 7 is adjusted accordingly as the movable sleeve 4 rotates. An oil reservoir 8 is formed between the fixed sleeve 3 and the movable sleeve 4; the oil reservoir 8 is annular. During the rotation of the movable sleeve 4, the annular oil reservoir 8 maintains communication with both the connecting hole 6 and the oil injection hole 7. Therefore, after grease is injected into the oil injection hole 7, the grease will sequentially enter the oil reservoir 8, the connecting hole 6, and the oil supply channel 5, finally flowing into the bearing 1 from the oil supply channel 5 to lubricate the bearing 1.

[0019] The bearing lubrication device needs to be installed close to the bearing 1. In practice, due to space limitations, the installation of the bearing lubrication device is often inconvenient. Existing bearing lubrication devices can often only be installed in a few specific positions and cannot be freely adjusted. However, in this utility model, the lubrication hole 7 is set on the movable sleeve 4. By utilizing the rotational cooperation between the movable sleeve 4 and the fixed sleeve 3, the direction of the lubrication hole 7 can be adjusted by rotating the movable sleeve 4, realizing free adjustment of the lubrication direction of the bearing 1 and avoiding interference from the installation space. Since the lubrication hole 7 is not directly set on the bearing outer cover 201, the installation position restriction of the bearing outer cover 201 can be avoided, and the overall mechanism is very convenient to install and disassemble.

[0020] An annular groove is provided on the side of the movable sleeve 4 facing the fixed sleeve 3, or an annular groove is provided on the side of the fixed sleeve 3 facing the movable sleeve 4, or annular grooves are provided on the opposite sides of the movable sleeve 4 and the fixed sleeve 3, thereby forming an annular oil storage chamber 8 between the fixed sleeve 3 and the movable sleeve 4. (See attached...) Figure 2 and 3 In the middle, an annular groove is provided on the side of the fixed sleeve 3 facing the movable sleeve 4.

[0021] Both the movable sleeve 4 and the fixed sleeve 3 are annular structures. The movable sleeve 4 is fitted over the fixed sleeve 3. The inner contour surface of the movable sleeve 4 and the outer contour surface of the fixed sleeve 3 are sealed together to prevent grease from leaking out from the gap between the movable sleeve 4 and the fixed sleeve 3.

[0022] In one embodiment, the movable sleeve 4 has an internal thread structure on its inner contour surface, and the fixed sleeve 3 has an external thread structure on its outer contour surface. Thread structures are also present on both sides of the oil injection hole 7 and the oil reservoir 8. The movable sleeve 4 and the fixed sleeve 3 are threaded together, allowing the movable sleeve 4 to rotate relative to the fixed sleeve 3, thereby adjusting the position of the oil injection hole 7. Furthermore, the threaded engagement between the movable sleeve 4 and the fixed sleeve 3 forms a seal between the inner contour surface of the movable sleeve 4 and the outer contour surface of the fixed sleeve 3, achieving a seal in the oil passage without the need for a separate sealing element.

[0023] As attached Figure 3 As shown, an oil injection pipe 9 is inserted into the oil injection hole 7, through which grease is injected into the oil injection hole 7. In one embodiment, the oil injection hole 7 and the oil injection pipe 9 are threadedly connected. The oil injection pipe 9 is equipped with a one-way valve, specifically, the one-way valve is located at the end of the oil injection pipe 9 away from the oil injection hole 7, and the one-way valve can prevent grease from leaking out of the oil injection pipe 9.

[0024] In one embodiment, the outer contour surface of the fixed sleeve 3 has an annular groove, thereby forming an oil reservoir 8 on the outer contour surface of the fixed sleeve 3. Since the movable sleeve 4 is threadedly engaged with the fixed sleeve 3, during the rotation of the movable sleeve 4, the oil injection hole 7 and the oil reservoir 8 may become misaligned, or even the movable sleeve 4 may rotate away from the fixed sleeve 3. To prevent this, a limiting strip 10 is provided at one end of the oil injection pipe 9 that inserts into the oil injection hole 7. The limiting strip 10 extends into the annular groove on the outer contour surface of the fixed sleeve 3. The limiting strip 10 can limit the movable sleeve 4, keeping the oil injection hole 7 relative to the annular groove on the outer contour surface of the fixed sleeve 3. During the rotation of the movable sleeve 4, if the oil injection hole 7 is about to become misaligned with the annular groove on the outer contour surface of the fixed sleeve 3, the limiting strip 10 will abut against the side wall of the annular groove, preventing the movable sleeve 4 from continuing to rotate, thus avoiding the misalignment of the oil injection hole 7 and the oil reservoir 8, and also preventing the movable sleeve 4 from rotating away from the fixed sleeve 3.

[0025] Both the connecting hole 6 and the oil supply channel 5 are located above the bearing 1. After the oil in the oil storage chamber 8 overflows, it enters the oil supply channel 5 through the connecting hole 6, and the grease in the oil supply channel 5 then flows downwards onto the bearing 1. An oil draining device 11 is also provided below the bearing outer cover 201. The grease on the bearing 1 will fall into the oil draining device 11.

[0026] With attachment Figure 2 and 3 For example, when oil needs to be injected into bearing 1, grease is injected into the oil injection hole 7 through the oil injection pipe 9. Then, the grease enters the oil reservoir 8 through the oil injection hole 7. After the oil reservoir 8 is full of grease, the grease will enter the oil supply channel 5 through the connecting hole 6, and then flow out from the oil supply channel 5 onto bearing 1. The movable sleeve 4 is threadedly engaged with the fixed sleeve 3. Rotating the movable sleeve 4 can adjust the direction of the oil injection pipe 9, avoiding difficulties in installing the bearing oil injection device due to space constraints.

[0027] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An adjustable bearing oil injection device, characterized in that: It includes a bearing (1), a bearing cover (2), a fixed sleeve (3), and a movable sleeve (4); the bearing cover (2) has an oil supply channel (5) for supplying oil to the bearing (1), the fixed sleeve (3) is connected to the bearing cover (2), and the fixed sleeve (3) has a connecting hole (6) connected to the oil supply channel (5); the movable sleeve (4) has an oil injection hole (7), the movable sleeve (4) can rotate relative to the fixed sleeve (3), and the direction of the oil injection hole (7) is adjusted when the movable sleeve (4) rotates; an oil reservoir (8) is formed between the fixed sleeve (3) and the movable sleeve (4), the oil reservoir (8) is annular, and during the rotation of the movable sleeve (4), the annular oil reservoir (8) is connected to the connecting hole (6) and the oil injection hole (7).

2. The adjustable bearing oil injection device according to claim 1, characterized in that: An annular groove is provided on the side of the movable sleeve (4) facing the fixed sleeve (3), or an annular groove is provided on the side of the fixed sleeve (3) facing the movable sleeve (4), or an annular groove is provided on the opposite sides of the movable sleeve (4) and the fixed sleeve (3), thereby forming an annular oil storage chamber (8) between the fixed sleeve (3) and the movable sleeve (4).

3. The adjustable bearing oil injection device according to claim 2, characterized in that: The movable sleeve (4) is fitted over the fixed sleeve (3), and the inner contour surface of the movable sleeve (4) is sealed to the outer contour surface of the fixed sleeve (3).

4. The adjustable bearing oil injection device according to claim 3, characterized in that: The movable sleeve (4) has an internal thread structure on its inner contour surface, and the fixed sleeve (3) has an external thread structure on its outer contour surface. The movable sleeve (4) and the fixed sleeve (3) are threaded together, so that the movable sleeve (4) can rotate relative to the fixed sleeve (3) and form a seal between the inner contour surface of the movable sleeve (4) and the outer contour surface of the fixed sleeve (3).

5. The adjustable bearing oil injection device according to claim 4, characterized in that: An oil injection pipe (9) is inserted into the oil injection hole (7), and a one-way valve is provided on the oil injection pipe (9).

6. The adjustable bearing oil injection device according to claim 5, characterized in that: The outer contour surface of the fixed sleeve (3) has an annular groove; the end of the oil injection pipe (9) into which the oil injection hole (7) is inserted is provided with a limiting strip (10), which extends into the annular groove on the outer contour surface of the fixed sleeve (3) so that the oil injection hole (7) and the annular groove on the outer contour surface of the fixed sleeve (3) remain opposite.

7. The adjustable bearing oil injection device according to claim 1, characterized in that: The connecting hole (6) and the oil supply channel (5) are both located above the bearing (1). After the oil in the oil storage chamber (8) overflows, it enters the oil supply channel (5) through the connecting hole (6).

8. The adjustable bearing oil injection device according to claim 1, characterized in that: The bearing cover (2) includes an outer bearing cover (201), a bearing end cover (202), and an inner bearing cover (203). The fixing sleeve (3) is connected to the outer end face of the outer bearing cover (201).

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