Universal joint connecting shaft convenient to assemble and disassemble

Abstract

The utility model relates to the technical field of universal joint connecting shafts, and discloses a universal joint connecting shaft convenient to assemble and disassemble, which comprises a first connecting piece and a second connecting piece, a hexagonal clamping block is fixedly connected onto the first connecting piece, a connecting shaft is fixedly connected onto the hexagonal clamping block, a hexagonal limiting block is rotatably connected onto the connecting shaft, and the hexagonal limiting block is fixedly connected onto the second connecting piece. The second connecting piece is rotationally connected with a sleeve column, a hexagonal clamping groove is formed in the sleeve column and connected with the hexagonal clamping block in a clamped mode, a sliding shaft is fixedly connected to the interior of the second connecting piece, and the sliding shaft is slidably connected with a first semicircular clamping block and a second semicircular clamping block. According to the utility model, the hexagonal limiting block is clamped in the hexagonal limiting groove, so that the limitation of a traditional integrated structure is changed, the connecting pieces can be flexibly disassembled and assembled, the maintenance and replacement are convenient, the maintenance cost is reduced, the overall maintainability of the equipment is improved, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of universal joint connecting shafts, in particular to a universal joint connecting shaft which is convenient for assembly and disassembly. Background Art

[0002] The universal joint connecting shaft is the middle component of the universal joint. Its function is to connect the transmission system with the drive axle or other driving components to achieve effective power transmission.

[0003] The utility model discloses a universal coupling with the publication number CN210068782U, comprising a left half coupling and a right half coupling, wherein one end of the left half coupling is connected to a fixed bearing through an input shaft, and one end of the right half coupling is connected to a fixed bearing through an output shaft. In the utility model, a first sealed bearing and a second sealed bearing are respectively fixed to one end of the left half coupling and the intermediate shaft, threaded holes are provided on the surface of the sealed bearing, and a sealing cover is installed between the first sealed bearing and the second sealed bearing through the threaded holes, and the sealing cover is made of elastic heat dissipation material. Since the coupling is working at high speed, static electricity is easily generated, so that dust in the air is adsorbed into the inside of the coupling. In the long run, the friction between the internal parts of the coupling will increase, and the service life of the coupling will be reduced. By installing a sealing cover between the coupling and the intermediate shaft, dust in the air can be effectively prevented from entering the inside of the coupling, thereby ensuring the cleanliness of the inside of the coupling.

[0004] However, universal joint shafts generally adopt an integrated structure, that is, the connecting parts are fixedly connected by welding, casting or fasteners, which causes problems such as inconvenient disassembly and assembly and difficult maintenance. Once the connecting shaft or connecting parts fail, it is often necessary to replace the entire shaft or perform complicated disassembly operations, which not only increases the maintenance cost, but also affects the overall maintainability and service life of the equipment. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and provides a universal joint connecting shaft which is convenient for assembly and disassembly.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a universal joint connecting shaft which is easy to load and unload, comprising a No. 1 connecting piece and a No. 2 connecting piece, the No. 1 connecting piece is fixedly connected with a hexagonal block, the hexagonal block is fixedly connected with a connecting shaft, the connecting shaft is rotatably connected with a hexagonal limit block, the No. 2 connecting piece is rotatably connected with a sleeve column, the sleeve column is provided with a hexagonal slot, the hexagonal slot is engaged with the hexagonal block, the interior of the No. 2 connecting piece is fixedly connected with a sliding shaft, the sliding shaft is slidably connected with a No. 1 semicircular clamping block and a No. 2 semicircular clamping block, the No. 1 semicircular clamping block and the No. 2 semicircular clamping block are both threadedly connected with a bidirectional screw rod, the bidirectional screw rod is rotatably connected to the interior of the No. 2 connecting piece, and the upper end of the bidirectional screw rod is fixedly connected with a knob.

[0007] As a further description of the above technical solution: the No. 1 connecting member and the No. 2 connecting member are respectively fixedly connected with a connecting seat, the connecting seat is fixedly connected with a fixed shaft, the outer side of the fixed shaft is rotatably connected with a T-shaped ring sleeve, and the T-shaped ring sleeve is fixedly connected with a flange.

[0008] As a further description of the above technical solution: the first semicircular clamping block and the second semicircular clamping block are symmetrically arranged on the bidirectional screw rod, and the first semicircular clamping block and the second semicircular clamping block are both arranged inside the second connecting piece.

[0009] As a further description of the above technical solution: the second connecting piece is provided with a hexagonal limiting groove, and the hexagonal limiting groove is clamped with the hexagonal limiting block, and the hexagonal limiting groove and the hexagonal clamping slot are arranged in a through manner.

[0010] As a further description of the above technical solution: the side length of the hexagonal limiting block is smaller than the side length of the hexagonal clamping block.

[0011] As a further description of the above technical solution: balls are rolled on the No. 1 semicircular clamping block and the No. 2 semicircular clamping block, and the balls are evenly arranged on the No. 1 semicircular clamping block and the No. 2 semicircular clamping block.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the utility model, the hexagonal limit block is clamped inside the hexagonal limit groove, which changes the limitations of the traditional integrated structure, so that the connecting parts can be flexibly disassembled and assembled, which is convenient for maintenance and replacement, reduces the maintenance cost, and improves the overall maintainability and service life of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a three-dimensional structural schematic diagram of a universal joint connecting shaft that is easy to load and unload, as proposed by the utility model;

[0015] Figure 2 A schematic diagram of the local three-dimensional structure of a universal joint connecting shaft that is easy to load and unload proposed by the utility model Figure 1 ;

[0016] Figure 3 A schematic diagram of the local three-dimensional structure of a universal joint connecting shaft that is easy to load and unload proposed by the utility model Figure 2 ;

[0017] Figure 4 This is a partial structural cross-sectional view of a universal joint connecting shaft that is convenient for loading and unloading proposed by the utility model;

[0018] Figure 5 for Figure 4 Enlarged schematic diagram at point A in the middle.

[0019] Legend:

[0020] 1. Connecting piece No. 1; 2. Connecting piece No. 2; 3. Hexagonal clamping block; 4. Connecting shaft; 5. Hexagonal limit block; 6. Sleeve column; 7. Hexagonal clamping slot; 8. Sliding shaft; 9. Semicircular clamping block No. 1; 10. Semicircular clamping block No. 2; 11. Bidirectional screw rod; 12. Knob; 13. Ball; 14. Connecting seat; 15. Fixed shaft; 16. T-ring sleeve; 17. Flange; 18. Hexagonal limit slot. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Example 1

[0023] Reference Figure 1-Figure 5As shown, a universal joint connecting shaft with convenient loading and unloading comprises a first connecting member 1 and a second connecting member 2, the first connecting member 1 is fixedly connected with a hexagonal clamping block 3, the hexagonal clamping block 3 is fixedly connected with a connecting shaft 4, the connecting shaft 4 is rotatably connected with a hexagonal limit block 5, the second connecting member 2 is rotatably connected with a sleeve column 6, the sleeve column 6 is provided with a hexagonal clamping groove 7, the hexagonal clamping groove 7 is clamped with the hexagonal clamping block 3, the interior of the second connecting member 2 is fixedly connected with a sliding shaft 8, the sliding shaft 8 is slidably connected with a first semicircular clamping block 9 and The second semicircular clamping block 10, the first semicircular clamping block 9 and the second semicircular clamping block 10 are all threadedly connected with a bidirectional screw rod 11, the bidirectional screw rod 11 is rotatably connected to the inside of the second connecting piece 2, and the upper end of the bidirectional screw rod 11 is fixedly connected with a knob 12. By clamping the hexagonal limit block 5 inside the hexagonal limit groove 18, the limitations of the traditional integrated structure are changed, so that the connecting parts can be flexibly disassembled and assembled, which is convenient for maintenance and replacement, reduces the maintenance cost, and improves the overall maintainability and service life of the equipment.

[0024] The No. 1 connecting member 1 and the No. 2 connecting member 2 are respectively fixedly connected with a connecting seat 14, the connecting seat 14 is fixedly connected with a fixed shaft 15, the fixed shaft 15 is rotatably connected with a T-shaped ring sleeve 16 on the outer side, the T-shaped ring sleeve 16 is fixedly connected with a flange 17, and the flange 17 is used to connect with the driving shaft and the driven shaft.

[0025] The first semicircular clamp block 9 and the second semicircular clamp block 10 are symmetrically arranged on the bidirectional screw rod 11, and the first semicircular clamp block 9 and the second semicircular clamp block 10 are both arranged inside the second connecting member 2. The second connecting member 2 is provided with a hexagonal limiting groove 18, and the hexagonal limiting groove 18 is clamped with the hexagonal limiting block 5, and the hexagonal limiting groove 18 and the hexagonal clamping groove 7 are through-arranged.

[0026] The side length of the hexagonal limiting block 5 is smaller than the side length of the hexagonal clamping block 3 , so that the hexagonal clamping block 3 can pass through the hexagonal clamping slot 7 without being blocked by the inner wall of the hexagonal clamping slot 7 .

[0027] Balls 13 are rollingly arranged on both the No. 1 semicircular clamping block 9 and the No. 2 semicircular clamping block 10. The balls 13 are evenly arranged on the No. 1 semicircular clamping block 9 and the No. 2 semicircular clamping block 10. The balls 13 can make the connecting shaft 4 rotate better and reduce the friction between the No. 1 semicircular clamping block 9 and the No. 2 semicircular clamping block 10.

[0028] Working principle: First, the operator aligns the hexagonal block 3 on the No. 1 connecting piece 1 with the hexagonal slot 7 on the sleeve column 6 and inserts it into the inside of the hexagonal slot 7. When the hexagonal block 3 is fully inserted into the inside of the hexagonal slot 7, the hexagonal limit block 5 is limited and stuck in the inside of the hexagonal limit slot 18. Then, by turning the knob 12, the knob 12 drives the bidirectional screw rod 11 to rotate. The rotation of the bidirectional screw rod 11 causes the No. 1 semicircular clamp block 9 and the No. 2 semicircular clamp block 10 to slide in the direction of the connecting shaft 4 until the ball 13 fits with the connecting shaft 4, and the No. 1 semicircular clamp block 9 and the No. 2 semicircular clamp block 10 form a complete The ring prevents the hexagonal limit block 5 from disengaging from the hexagonal limit groove 18. If it is necessary to disassemble and separate the No. 1 connecting member 1 and the No. 2 connecting member 2, it is only necessary to reversely rotate the knob 12 to separate the No. 1 semicircular clamp 9 and the No. 2 semicircular clamp 10. At this point, the quick loading and unloading of the No. 1 connecting member 1 and the No. 2 connecting member 2 is achieved, and the original integrated setting of the universal joint connecting shaft is changed, and the traditional method that cannot be flexibly disassembled and assembled is changed. Finally, the T-ring sleeve 16 and the fixed shaft 15 are set to enable the universal joint connecting shaft to rotate in the horizontal direction, while the setting of the No. 2 connecting member 2 and the sleeve column 6 enables the universal joint connecting shaft to rotate in the vertical direction.

[0029] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A universal joint shaft that is easy to assemble and disassemble, comprising a first connecting piece (1) and a second connecting piece (2), characterized in that: The first connecting member (1) is fixedly connected with a hexagonal clamping block (3), the hexagonal clamping block (3) is fixedly connected with a connecting shaft (4), the connecting shaft (4) is rotatably connected with a hexagonal limit block (5), the second connecting member (2) is rotatably connected with a sleeve column (6), the sleeve column (6) is provided with a hexagonal clamping groove (7), the hexagonal clamping groove (7) is clamped with the hexagonal clamping block (3), the interior of the second connecting member (2) is fixedly connected with a sliding shaft (8), the sliding shaft (8) is slidably connected with a first semicircular clamping block (9) and a second semicircular clamping block (10), the first semicircular clamping block (9) and the second semicircular clamping block (10) are both threadedly connected with a bidirectional screw rod (11), the bidirectional screw rod (11) is rotatably connected to the interior of the second connecting member (2), and the upper end of the bidirectional screw rod (11) is fixedly connected with a knob (12).

2. A universal joint shaft that is easy to load and unload according to claim 1, characterized in that: The first connecting piece (1) and the second connecting piece (2) are respectively fixedly connected with a connecting seat (14), the connecting seat (14) is fixedly connected with a fixed shaft (15), the fixed shaft (15) is rotatably connected with a T-shaped ring sleeve (16) on the outside, and the T-shaped ring sleeve (16) is fixedly connected with a flange plate (17).

3. The universal joint shaft that is easy to load and unload according to claim 1, characterized in that: The first semicircular clamping block (9) and the second semicircular clamping block (10) are symmetrically arranged on the bidirectional screw rod (11), and the first semicircular clamping block (9) and the second semicircular clamping block (10) are both arranged inside the second connecting piece (2).

4. The universal joint shaft that is easy to load and unload according to claim 1, characterized in that: The second connecting member (2) is provided with a hexagonal limiting groove (18), and the hexagonal limiting groove (18) is engaged with the hexagonal limiting block (5), and the hexagonal limiting groove (18) and the hexagonal locking groove (7) are arranged to be connected.

5. The universal joint shaft that is easy to assemble and disassemble according to claim 1, characterized in that: The side length of the hexagonal limiting block (5) is smaller than the side length of the hexagonal clamping block (3).

6. The universal joint shaft that is easy to assemble and disassemble according to claim 1, characterized in that: Balls (13) are rollingly arranged on the first semicircular clamping block (9) and the second semicircular clamping block (10), and the balls (13) are evenly arranged on the first semicircular clamping block (9) and the second semicircular clamping block (10).

Images