Modular quick release mechanical axle

Abstract

The utility model relates to a modularization quick assembly and disassembly type mechanical shaft belongs to mechanical shaft technical field, lower axle body, top post, convex board, casing, movable plate, spring I, sliding column, clamping block, presser bar, press spring board, spring II, U-shaped board, second inner chamber, elastic pad, outer sealing strip, inner sealing strip, inner chamber III, first inner chamber, third inner chamber, the application provides a modularization metal axle can quick assembly and disassembly, when the axle body appears local problem, need not integral processing, can be directed to the axle body maintenance or replacement, greatly reduce the maintenance time, improve the maintenance efficiency, reduce the equipment downtime cost, and the upper and lower axle body are provided with sealing mechanism, block the outside dust, impurity and enter, further promote the sealing effect, multiple sealing effectively reduce the interference of external factor to the mechanical axle operation, guarantee internal environment clean, avoid the part abrasion caused by the impurity invasion, thereby strengthen the working stability of mechanical axle, prolong its life.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical shaft technology, and in particular relates to a quick-assembly and disassembly mechanical shaft. Background Technology

[0002] Mechanical shafts are core components of mechanical systems, mostly cylindrical, and primarily made of metals such as carbon steel and alloy steel. Engineering plastics can be used in special applications. Their structures come in solid and hollow versions to accommodate different strength, weight, and space requirements. They must work in conjunction with bearings, gears, pulleys, etc., to form a transmission system. Their core function is to support rotating parts, ensuring the coaxiality and positional accuracy of components such as gears and impellers. Simultaneously, they serve as a carrier for motion and power transmission, transferring the rotational motion and power from power sources such as electric motors to downstream components, thus realizing the various functions of the mechanical shaft.

[0003] In existing technologies, most traditional mechanical shafts adopt an integral structure. In enclosed and narrow spaces or complex assembly parts, installation and disassembly require special and complex tools, making the operation process cumbersome. Once the shaft has local cracks, wear, or breakage, the damaged section cannot be disassembled separately and the whole shaft must be replaced. This not only consumes a lot of manpower and time, but also causes the equipment to be shut down for a long time, which seriously affects production efficiency. Moreover, in some heavy industries, transportation and other scenarios where mechanical shafts are in high-load operation for a long time, they often face the risk of decreased precision or breakage, which makes maintenance costs high.

[0004] Therefore, there is an urgent need for a new technical solution to address this problem. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a mechanical shaft that solves the problems encountered in the prior art.

[0006] A modular, quick-assembly mechanical shaft, characterized in that it comprises an upper shaft body and a lower shaft body;

[0007] The lower shaft is provided with a top column and a sealing mechanism at the top. The top column has convex plates arranged regularly on its side wall, and a telescopic snap-fit ​​mechanism is provided at the top of the top column.

[0008] The telescopic locking mechanism includes a housing, a movable plate, a spring I, a sliding column, and a locking block; the housing is a hollow box with through holes on both sides; there are two movable plates, which are slidably disposed in the inner cavity of the housing, and a spring I is disposed between the two movable plates; there are two sliding columns, one end of which passes through the through hole and connects to the movable plate, and the other end of which connects to the locking block;

[0009] The cross-section of the card block is triangular;

[0010] The upper shaft body has three interconnected cavities, namely, inner cavity I, inner cavity II, and inner cavity III, arranged sequentially from bottom to top, wherein the diameter of inner cavity II is larger than that of inner cavity I and inner cavity III.

[0011] The inner cavity I is shaped to fit the top post, the top post is set in the inner cavity I, and the telescopic locking mechanism is in the inner cavity II;

[0012] A pressure rod is provided on the shaft body. The pressure rod passes through the through hole at the top of the shaft body and enters the inner cavity III of the shaft body. A U-shaped plate is provided at the end of the pressure rod, and a compression spring plate is provided on the side wall of the pressure rod. A spring II is sleeved on the pressure rod. One end of the spring II is connected to the compression spring plate, and the other end is connected to the inner wall of the inner cavity II.

[0013] The U-shaped plate is located in the inner cavity II, and its two ends are positioned in conjunction with the two locking blocks.

[0014] The number of protruding plates is two or more, and the protruding plates are integrally formed with the top column.

[0015] The lower shaft and the top column are integrally molded.

[0016] In the free state of spring I, the locking block is engaged with the bottom surface of the inner cavity II, and the upper shaft and the lower shaft are locked together; when the pressure rod is pressed down, the two ends of the U-shaped plate move downward to squeeze the two locking blocks, the two locking blocks compress spring I, the locking blocks disengage from contact with the bottom surface of the inner cavity II, and the upper shaft and the lower shaft separate.

[0017] The inner cavity III comprises, from top to bottom, a first inner cavity, a second inner cavity, and a third inner cavity; the first, second, and third inner cavities are all cylindrical, and the first and third inner cavities have the same diameter, while the diameter of the second inner cavity is larger than that of the first inner cavity; the compression spring plate is located in the second inner cavity, and one end of the spring II is connected to the compression spring plate, while the other end is connected to the inner bottom surface of the second inner cavity; when the pressure rod is pressed down, the spring II and the compression spring plate cooperate to provide the power for the pressure rod to return to its original position.

[0018] The sealing mechanism includes an elastic pad, an outer sealing strip, and an inner sealing strip; the bottom surface of the elastic pad is connected to the top of the lower shaft, and two annular grooves are provided on the elastic pad, with the inner sealing strip and the outer sealing strip respectively installed in the annular grooves; when the lower shaft is connected to the upper shaft, the top surface of the elastic pad is in close contact with the bottom surface of the upper shaft.

[0019] The inner bottom surface of the inner cavity II is provided with a slot that mates with the card block.

[0020] The inner cavity I is shaped to match the top column (3), and the inner wall of the inner cavity I is also provided with a groove that matches the protrusion plate (4).

[0021] Through the above design scheme, this application provides a modular mechanical shaft that can be quickly disassembled and assembled. When a local problem occurs in the shaft, there is no need to handle the whole shaft. It can be maintained or replaced specifically for a particular shaft, which greatly reduces maintenance time, improves maintenance efficiency, and reduces equipment downtime costs. In addition, a sealing mechanism is set between the upper and lower shafts to prevent external dust and impurities from entering, further improving the sealing effect. Multiple seals effectively reduce the interference of external factors on the operation of the mechanical shaft, ensure a clean internal environment, and avoid wear of parts caused by impurities, thereby enhancing the working stability of the mechanical shaft and extending its service life. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0023] Figure 1 This is a perspective view of a modular, quick-assembly mechanical shaft proposed in this utility model;

[0024] Figure 2 This is a three-dimensional structural schematic diagram of a modular quick-assembly mechanical shaft proposed in this utility model;

[0025] Figure 3 for Figure 2 A magnified view of a portion of region A in the middle;

[0026] Figure 4 for Figure 2 A magnified view of a portion of region B in the middle;

[0027] In the diagram: 1. Upper shaft; 2. Lower shaft; 3. Top column; 4. Protruding plate; 5. Housing; 6. Movable plate; 7. Spring I; 8. Sliding column; 9. Locking block; 10. Pressure rod; 11. Compression spring plate; 12. Spring II; 13. U-shaped plate; 14. Second inner cavity; 15. Elastic pad; 17. Outer sealing strip; 19. Inner sealing strip; 20. Inner cavity III; 21. First inner cavity; 22. Third inner cavity. Detailed Implementation

[0028] As shown in the figure, a modular quick-assembly mechanical shaft is characterized by comprising an upper shaft body 1 and a lower shaft body 2.

[0029] The lower shaft 2 is provided with a top column 3 and a sealing mechanism at the top. The top column 3 has protruding plates 4 arranged regularly on its side wall, and a telescopic snap-fit ​​mechanism is provided at the top of the top column 3.

[0030] The telescopic locking mechanism includes a housing 5, a movable plate 6, a spring 17, a sliding column 8, and a locking block 9; the housing 5 is a hollow box with through holes on both sides; there are two movable plates 6, which are slidably disposed in the inner cavity of the housing 5, and a spring 17 is disposed between the two movable plates 6; there are two sliding columns 8, one end of which passes through the through hole and connects to the movable plate 6, and the other end connects to the locking block 9;

[0031] The cross-section of the card block 9 is triangular;

[0032] The upper shaft 1 has three interconnected cavities, namely, inner cavity I, inner cavity II, and inner cavity III 20, arranged sequentially from bottom to top, with the diameter of inner cavity II being larger than that of inner cavity I and inner cavity III 20.

[0033] The inner cavity I is shaped to fit the top post 3, the top post 3 is disposed in the inner cavity I, and the telescopic snap-fit ​​mechanism is in the inner cavity II;

[0034] A pressure rod 10 is provided on the shaft body 1. The pressure rod 10 passes through the through hole at the top of the shaft body 1 and enters the inner cavity III20 of the shaft body 1. A U-shaped plate 13 is provided at the end of the pressure rod 10, and a compression spring plate 11 is provided on the side wall of the pressure rod 10. A spring II12 is sleeved on the pressure rod 10. One end of the spring II12 is connected to the compression spring plate 11, and the other end is connected to the inner wall of the inner cavity II.

[0035] The U-shaped plate 13 is in the inner cavity II, and its two ends are in position to cooperate with the two locking blocks 9.

[0036] The number of protruding plates 4 is two or more, and the protruding plates 4 and the top column 3 are integrally formed.

[0037] The lower shaft 2 and the top column 3 are integrally molded.

[0038] In the free state of the spring I7, the locking block 9 is engaged with the bottom surface of the inner cavity II, and the upper shaft 1 and the lower shaft 2 are locked together; when the pressure rod 10 presses down, the two ends of the U-shaped plate 13 move downward to squeeze the two locking blocks 9, the two locking blocks 9 compress the spring I7, the locking blocks 9 disengage from contact with the bottom surface of the inner cavity II, and the upper shaft 1 and the lower shaft 2 separate.

[0039] The inner cavity III20 includes, from top to bottom, a first inner cavity 21, a second inner cavity 14, and a third inner cavity 22. The first inner cavity 21, the second inner cavity 14, and the third inner cavity 22 are all cylindrical inner cavities, and the diameters of the first inner cavity 21 and the third inner cavity 22 are the same, while the diameter of the second inner cavity 14 is larger than that of the first inner cavity 21. The compression spring plate 11 is located in the second inner cavity 14, and one end of the spring II12 is connected to the compression spring plate 11, while the other end is connected to the inner bottom surface of the second inner cavity 14. When the pressure rod 10 is pressed down, the spring II12 and the compression spring plate 11 cooperate to provide the power for the pressure rod 10 to return to its original position.

[0040] The sealing mechanism includes an elastic pad 15, an outer sealing strip 17, and an inner sealing strip 19. The bottom surface of the elastic pad 15 is connected to the top surface of the lower shaft 2. Two annular grooves are provided on the elastic pad 15, and the inner sealing strip 19 and the outer sealing strip 17 are respectively provided in the annular grooves. When the lower shaft 2 is connected to the upper shaft 1, the top surface of the elastic pad 15 is in close contact with the bottom surface of the upper shaft 1.

[0041] The inner bottom surface of the inner cavity II is provided with a slot that mates with the card block 9.

[0042] The inner cavity I is shaped to fit the top column 3, and the inner wall of the inner cavity I is also provided with a groove that fits with the convex plate 4. The groove is used to fit tightly with the convex plate 4 to increase the circumferential strength of the top column 3 and the upper shaft 1.

[0043] The number of protruding plates 4 is two or more, and the protruding plates 4 are evenly and regularly arranged on the outer wall of the top column 3, which serves to increase the strength when the upper shaft 1 and the lower shaft 2 are connected.

[0044] The housing 5 provides space for the movable plate 6, spring I7, and sliding column 8 to be accommodated and move. The two sliding columns 8 can freely extend and retract through the through holes in the side wall of the housing 5. Each of the two sliding columns 8 has a locking block 9 fixedly connected to its opposite side. The sliding column 8 provides a guiding function for the movement of the locking block 9, ensuring that the locking block 9 moves accurately in the horizontal direction. The outer walls of the two locking blocks 9 engage with the bottom inner wall of the inner cavity II. During the connection process, when the locking block 9 is squeezed and moves inward, the movable plate 6 compresses the spring I7. When the locking block 9 reaches the slot position, the spring I7 resets and pushes the locking block 9 into the slot, realizing the quick connection between the upper shaft 1 and the lower shaft 2.

[0045] When the pressure rod 10 is pressed, the spring plate 11 slides on the inner wall of the second inner cavity 14, which restricts the range of motion of the pressure rod 10. In cooperation with the spring II 12, the pressure rod 10 can be reset under the action of the spring II 12 after the disassembly operation is completed.

[0046] The inner sealing strip 19 and the outer sealing strip 17 form a further sealing barrier to further prevent impurities from entering and improve the working stability and lifespan of the mechanical shaft.

[0047] Working principle: During disassembly and assembly, align the upper shaft 1 with the lower shaft 2, insert the top post 3 and the protruding plate 4 into the inner wall of the upper shaft 1. As the upper shaft 1 is pressed down, the locking block 9 is squeezed and moves inward, compressing the spring 7. When the locking block 9 reaches the corresponding slot position on the bottom inner wall of the upper shaft 1, the spring 7 resets and pushes the locking block 9 into the slot, realizing the quick connection between the upper shaft 1 and the lower shaft 2. During disassembly, press the pressure rod 10 to drive the U-shaped plate 13 to move down. The U-shaped plate 13 pushes the locking block 9 inward to compress the spring 7, causing the locking block 9 to disengage from the slot. At this time, the upper shaft 1 and the lower shaft 2 can be easily separated.

[0048] In terms of sealing, after the connection between the upper shaft 1 and the lower shaft 2 is completed, the elastic pad 15 is squeezed and deformed, tightly fitting the bottom of the upper shaft 1. The outer sealing strip 17 and the inner sealing strip 19 are respectively embedded in the corresponding positions at the bottom of the upper shaft 1, forming a multi-seal structure. The outer sealing strip 17 blocks external dust and impurities from entering, ensuring the cleanliness of the internal environment of the mechanical shaft, reducing the interference of external factors on the operation of the mechanical shaft, and improving the working stability and service life of the mechanical shaft.

[0049] This application provides a modular metal shaft that can be quickly disassembled and assembled. The upper shaft 1 and the lower shaft 2 can be easily and quickly disassembled. When a local problem occurs in the shaft, there is no need to handle the whole shaft. A specific shaft can be maintained or replaced, which greatly reduces maintenance time, improves maintenance efficiency, and reduces equipment downtime costs. This avoids the problem that existing metal shafts require complete disassembly when problems occur, which affects work efficiency.

[0050] The shapes of the upper and lower shaft bodies can be adjusted appropriately according to the actual fit to adapt to different assembly environments.

[0051] With double protection from both the outer and inner sealing strips, when disassembling the mechanical shaft, the sealing performance can be judged by observing whether the inner sealing strip is contaminated by external substances. This allows for adjustment of the thickness of the elastic pad 15 to prevent impurities from entering and improve the working stability and lifespan of the mechanical shaft.

Claims

1. A modular, quick-assembly mechanical shaft, characterized in that: It includes an upper shaft (1) and a lower shaft (2); The lower shaft (2) is provided with a top column (3) and a sealing mechanism at the top. The top column (3) has convex plates (4) regularly arranged on its side wall. The top column (3) is provided with a telescopic snap-fit ​​mechanism at the top. The telescopic locking mechanism includes a housing (5), a movable plate (6), a spring I (7), a sliding column (8), and a locking block (9); the housing (5) is a hollow box with through holes on both sides; there are two movable plates (6), which are slidably disposed in the inner cavity of the housing (5), and a spring I (7) is disposed between the two movable plates (6); there are two sliding columns (8), one end of which passes through the through hole and connects to the movable plate (6), and the other end is connected to the locking block (9); The cross-section of the card block (9) is triangular; The upper shaft (1) has three interconnected cavities I, II and III (20) arranged sequentially from bottom to top inside, and the diameter of the inner cavity II is larger than that of the inner cavity I and the inner cavity III (20). The inner cavity I is shaped to match the top post (3), the top post (3) is set in the inner cavity I, and the telescopic snap-fit ​​mechanism is in the inner cavity II; A pressure rod (10) is provided on the shaft (1). The pressure rod (10) passes through the through hole at the top of the shaft (1) and enters the inner cavity III (20) of the shaft (1). A U-shaped plate (13) is provided at the end of the pressure rod (10). A compression spring plate (11) is provided on the side wall of the pressure rod (10). A spring II (12) is sleeved on the pressure rod (10). One end of the spring II (12) is connected to the compression spring plate (11), and the other end is connected to the inner wall of the inner cavity II. The U-shaped plate (13) is in the inner cavity II, and its two ends are in position with the two locking blocks (9).

2. The modular quick-assembly mechanical shaft according to claim 1, characterized in that: The number of the protruding plates (4) is two or more, and the protruding plates (4) and the top column (3) are integrally formed.

3. The modular quick-assembly mechanical shaft according to claim 1, characterized in that: The lower shaft (2) and the top column (3) are integrally molded.

4. A modular quick-assembly mechanical shaft according to claim 1, characterized in that: In the free state of the spring I (7), the locking block (9) is engaged with the bottom surface of the inner cavity II, and the upper shaft (1) and the lower shaft (2) are locked together; when the pressure rod (10) presses down, the two ends of the U-shaped plate (13) move downward to squeeze the two locking blocks (9), the two locking blocks (9) compress the spring I (7), the locking block (9) disengages from contact with the bottom surface of the inner cavity II, and the upper shaft (1) and the lower shaft (2) separate.

5. A modular quick-assembly mechanical shaft according to claim 1, characterized in that: The inner cavity III (20) includes, from top to bottom, a first inner cavity (21), a second inner cavity (14), and a third inner cavity (22); the first inner cavity (21), the second inner cavity (14), and the third inner cavity (22) are all cylindrical inner cavities, and the diameters of the first inner cavity (21) and the third inner cavity (22) are the same, while the diameter of the second inner cavity (14) is larger than that of the first inner cavity (21); the compression spring plate (11) is located in the second inner cavity (14), and one end of the spring II (12) is connected to the compression spring plate (11), and the other end is connected to the inner bottom surface of the second inner cavity (14); when the pressure rod (10) is pressed down, the spring II (12) and the compression spring plate (11) cooperate to provide the power for the pressure rod (10) to return to its original position.

6. A modular quick-assembly mechanical shaft according to claim 1, characterized in that: The sealing mechanism includes an elastic pad (15), an outer sealing strip (17), and an inner sealing strip (19). The bottom surface of the elastic pad (15) is connected to the top of the lower shaft (2). Two annular grooves are provided on the elastic pad (15), and the inner sealing strip (19) and the outer sealing strip (17) are respectively provided in the annular grooves. When the lower shaft (2) is connected to the upper shaft (1), the top surface of the elastic pad (15) is in close contact with the bottom surface of the upper shaft (1).

7. A modular quick-assembly mechanical shaft according to claim 1, characterized in that: The inner bottom surface of the inner cavity II is provided with a slot that cooperates with the card block (9).

8. A modular quick-assembly mechanical shaft according to claim 1, characterized in that: The inner cavity I is shaped to match the top column (3), and the inner wall of the inner cavity I is also provided with a groove that matches the protrusion plate (4).

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