A shaft lubrication device for an air classifier

Abstract

This utility model discloses a shaft lubrication device for an air classifier, including an oil tank and a support frame. A drive motor is fixedly mounted on the support frame, and a sprocket is mounted on the output end of the drive motor. A chain is mounted on the support frame, and the sprocket works in conjunction with the chain. A bracket is fixedly mounted on the chain, and a support plate is mounted on the end of the bracket away from the chain. A positive and negative threaded screw is rotatably connected to the surface of the support plate, and a handwheel is mounted on one end of the positive and negative threaded screw. A moving block works in conjunction with the positive and negative threaded screw. In this utility model, several shafts are driven to reciprocate by the chain. During the movement, the ends of the shafts are immersed in the oil tank for lubrication, realizing simultaneous lubrication of multiple shafts and continuous operation without stopping the machine for loading and unloading, significantly improving lubrication efficiency. At the same time, the shafts are driven by the chain to ensure that the entire surface of the shafts is fully immersed in lubricating oil, avoiding the lubrication blind spots of traditional spraying methods.

Description

Technical Field

[0001] This utility model relates to the field of motor shaft processing technology, and in particular to a shaft lubrication device for a classifier. Background Technology

[0002] The lubrication device used in motor shaft machining is an important equipment component. Its main function is to lubricate the shaft during machining to reduce friction and wear, and improve machining accuracy and efficiency.

[0003] Existing technologies have the following problems:

[0004] Traditional lubrication devices typically employ a single-axis, single-use lubrication mode, lubricating only one shaft at a time. After lubricating one shaft, the machine must be stopped for loading and unloading, and restarted only after the next shaft is installed and secured. This intermittent operation leads to frequent production interruptions, especially in large-scale production scenarios, where downtime significantly increases, severely impacting overall production efficiency. Existing devices often have fixed clamping structures, only suitable for shafts of specific sizes. When lubricating shafts of different diameters, the entire clamping assembly must be replaced, or even the entire device must be replaced, resulting in cumbersome and costly operations. For example, when handling shafts with diameters of 15-30mm, traditional devices often require 2-3 different clamping structures, increasing equipment investment costs and extending production changeover time, failing to meet diverse production needs.

[0005] To address these shortcomings, we have proposed a shaft lubrication device for air classifiers. Utility Model Content

[0006] The purpose of this invention is to provide a shaft lubrication device for a classifier in order to overcome the shortcomings of existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a shaft lubrication device for a classifier, comprising an oil tank and a support frame, wherein a drive motor is fixedly mounted on the support frame, and a sprocket is mounted on the output end of the drive motor; a chain is mounted on the support frame, and the sprocket cooperates with the chain; a bracket is fixedly mounted on the chain, and a support plate is mounted on the end of the bracket away from the chain; a positive and negative threaded screw is rotatably connected to the surface of the support plate, and a handwheel is mounted on one end of the positive and negative threaded screw; a moving block is used in cooperation with the positive and negative threaded screw, and a connecting frame is welded to the surface of the moving block; a guide groove is formed on the surface of the support plate, and the connecting frame is slidably connected to the guide groove; a clamping block is fixedly connected to the inner wall of the connecting frame.

[0008] The drive motor is electrically connected to an external power source via wires.

[0009] The oil tank is arranged parallel to the chain.

[0010] The length of the oil tank is greater than the length of the chain.

[0011] The guide groove is arranged parallel to the positive and negative threaded screws.

[0012] The inner wall of the clamping block is attached with an anti-slip pad via Velcro.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this invention, a chain drives several rotating shafts to move reciprocally. During the movement, the ends of the rotating shafts are immersed in the oil tank for lubrication, realizing simultaneous lubrication and continuous operation of multiple shafts without stopping the machine for loading and unloading, which significantly improves lubrication efficiency. At the same time, the chain ensures that the entire surface of the rotating shaft is fully immersed in lubricating oil, avoiding the lubrication blind spots of traditional spraying methods.

[0015] In this invention, the clamping block adjusts the spacing via a forward and reverse threaded screw, allowing for the fixing of shafts of different sizes. By rotating the handwheel, the clamping spacing can be easily and precisely adjusted within the range of 10-50mm. It is suitable for shafts with a diameter of 15-40mm, making it more versatile and applicable to a wide range of applications. It can meet diverse production needs without replacing the clamping components, significantly shortening production changeover time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a shaft lubrication device for a classifier proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the external structure of a shaft lubrication device for a classifier proposed in this utility model;

[0019] Figure 3 This is a schematic diagram showing the connection between the support frame, drive motor, sprocket, and chain.

[0020] Figure 4 for Figure 1 A schematic diagram of a local structure.

[0021] Legend:

[0022] 1. Oil tank; 2. Support frame; 3. Drive motor; 4. Sprocket; 5. Chain; 6. Bracket; 7. Support plate; 8. Connecting frame; 9. Clamping block; 10. Positive and negative threaded screw; 11. Moving block; 12. Handwheel; 13. Guide groove. Detailed Implementation

[0023] 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.

[0024] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model; the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; furthermore, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "joined" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0025] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 A shaft lubrication device for a classifier includes an oil tank 1 and a support frame 2.

[0026] The basic structure of the device consists of an oil tank 1 for storing lubricating oil and a support frame 2 for supporting the drive components. Together, they form the main frame of the equipment.

[0027] A drive motor 3 is fixedly installed on the support frame 2, and a sprocket 4 is installed at the output end of the drive motor 3.

[0028] The drive motor 3 serves as the power source and is fixed to the support frame 2 by bolts. Its output shaft is rigidly connected to the sprocket 4 to transmit rotational power.

[0029] A chain 5 is installed on the support frame 2, and the sprocket 4 works in conjunction with the chain 5.

[0030] Chain 5 is mounted on the guide rail of the support frame 2, forming a chain drive mechanism with sprocket 4. The drive motor 3 drives chain 5 to perform reciprocating linear motion through sprocket 4.

[0031] A bracket 6 is fixedly installed on the chain 5, and a support plate 7 is installed on the end of the bracket 6 away from the chain 5.

[0032] The bracket 6 is fixed to the chain 5 by bolts and moves synchronously with the chain 5. The support plate 7 is installed at the end of the bracket 6 to support the rotating shaft clamping mechanism.

[0033] The surface of the support plate 7 is rotatably connected to a positive and negative threaded screw 10, and a handwheel 12 is installed at one end of the positive and negative threaded screw 10.

[0034] The forward and reverse threaded screw 10 is mounted on the support plate 7 via bearings and can be rotated manually. The handwheel 12 is fixed to one end of the screw for easy adjustment by the operator.

[0035] A movable block 11 is used in conjunction with the positive and negative thread screw 10, and a connecting frame 8 is welded to the surface of the movable block 11.

[0036] The movable block 11 is connected to the positive and negative threaded screw 10 by threads. When the screw is rotated, the movable block 11 can move along the screw axis. The connecting frame 8 is welded to the movable block 11 and is used to fix the clamping block 9.

[0037] The surface of the support plate 7 is provided with a guide groove 13, and the connecting frame 8 is slidably connected to the guide groove 13.

[0038] The guide groove 13 provides a sliding track for the connecting frame 8, ensuring that the moving block 11 maintains a straight line motion and avoids shaking.

[0039] A clamping block 9 is fixed to the inner wall of the connecting frame 8.

[0040] The clamping block 9 is fixed inside the connecting frame 8 and is used to clamp the rotating shaft. Its position moves synchronously with the connecting frame 8.

[0041] Please refer to Figure 1 The drive motor 3 is electrically connected to an external power source via a wire, and the drive motor 3 is connected to an external power source via a cable to achieve energized operation and provide power to the device.

[0042] Please refer to Figure 1 and Figure 2 The oil tank 1 is set parallel to the chain 5, and the length direction of the oil tank 1 is consistent with the movement direction of the chain 5, so as to ensure that the shaft can be fully immersed in lubricating oil during the movement.

[0043] Please refer to Figure 1 and Figure 2 The length of the oil tank 1 is greater than the length of the chain 5. The length of the oil tank 1 exceeds the range of motion of the chain 5, ensuring that when the chain 5 drives the shaft to move back and forth, the shaft is always inside the oil tank 1, avoiding a lubrication blind spot.

[0044] Please refer to Figure 4 The guide groove 13 is set parallel to the positive and negative thread screw 10. The direction of the guide groove 13 is parallel to the axis of the positive and negative thread screw 10, ensuring that the moving direction of the moving block 11 is consistent with the adjustment direction of the screw, thereby improving the structural stability.

[0045] Please refer to Figure 4 The inner wall of the clamping block 9 is attached with an anti-slip pad by Velcro. The anti-slip pad is attached to the inside of the clamping block 9 by Velcro, which can increase friction to prevent the shaft from sliding and is easy to disassemble and replace, adapting to shafts with different surface roughness.

[0046] Working principle: When in use, first rotate the handwheel 12 according to the diameter of the shaft to drive the positive and negative thread screw 10 to rotate. Utilize the characteristics of the positive and negative thread to make the moving block 11 drive the clamping block 9 to adjust the spacing and fix the shaft between the clamping blocks 9. Then, the drive motor 3 is powered on to drive the sprocket 4 to rotate, which in turn causes the chain 5 to drive the bracket 6, support plate 7 and the shaft on the clamping block 9 to make reciprocating linear motion. Since the oil tank 1 is parallel to the chain 5 and is longer, the end of the shaft is continuously immersed in the lubricating oil in the oil tank 1 during the movement to achieve all-round uniform lubrication. After lubrication is completed, release the clamping block 9 and take out the shaft. If maintenance is required, the anti-slip pad can be replaced or the lubricating oil can be replaced through the oil drain port of the oil tank 1.

[0047] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A shaft lubrication device for a classifier, comprising an oil tank (1) and a support frame (2), characterized in that, A drive motor (3) is fixedly installed on the support frame (2), and a sprocket (4) is installed at the output end of the drive motor (3). A chain (5) is installed on the support frame (2). The sprocket (4) works in conjunction with the chain (5). A bracket (6) is fixedly installed on the chain (5). A support plate (7) is installed at the end of the bracket (6) away from the chain (5). A positive and negative threaded screw (10) is rotatably connected to the surface of the support plate (7). A handwheel (12) is installed at one end of the positive and negative threaded screw (10). A moving block (11) works in conjunction with the positive and negative threaded screw (10). A connecting frame (8) is welded to the surface of the moving block (11). A guide groove (13) is opened on the surface of the support plate (7). The connecting frame (8) is slidably connected to the guide groove (13). A clamping block (9) is fixedly connected to the inner wall of the connecting frame (8).

2. The shaft lubrication device for a classifier according to claim 1, characterized in that, The drive motor (3) is electrically connected to an external power source via wires.

3. The shaft lubrication device for a classifier according to claim 1, characterized in that, The oil tank (1) is arranged in parallel with the chain (5).

4. The shaft lubrication device for a classifier according to claim 1, characterized in that, The length of the oil tank (1) is greater than the length of the chain (5).

5. The shaft lubrication device for a classifier according to claim 1, characterized in that, The guide groove (13) is arranged parallel to the positive and negative threaded screws (10).

6. The shaft lubrication device for a classifier according to claim 1, characterized in that, The inner wall of the clamping block (9) is attached with an anti-slip pad by Velcro.

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