A universal joint coupling

Abstract

The utility model relates to the technical field of universal joint couplings, and in particular to a universal joint coupling, comprising a cross shaft, wherein both left and right sides of the cross shaft are movably sleeved with mounting frames, the inner cavities of the cross shaft and the mounting frame are penetrated with mounting pins, the inner cavities of the mounting pins are movably connected to a limiting mechanism, the limiting mechanism comprises a connecting slide plate, a positioning spring is fixedly connected between the connecting slide plates on both sides, and the positioning plug plate comprises a plug plate body. The positioning plug plates on both sides are pushed into the interior of the mounting pin, and the mounting pin is pulled outward from the other end, and the mounting pin is moved out from the interior of the mounting frame and the cross shaft. When installing, the positioning plug plates on both sides are pushed inward into the inner cavity of the mounting groove, inserted into the inner cavity of the mounting frame and pushed inward with force, and the positioning plug plates are moved out to limit the mounting pins. In this way, disassembly and assembly do not require personnel to use tools to operate, which is more time-saving and labor-saving, and further improves the disassembly and assembly efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of universal joint couplings, in particular to a universal joint coupling. Background Art

[0002] The universal joint coupling enables two shafts that are not on the same axis to achieve continuous rotation when there is an angle between the axes, and reliably transmit torque and motion. Its structure has a large angular compensation capability, a compact structure, and high transmission efficiency.

[0003] After searching, the announcement number is CN214007829U, and the name is a universal joint coupling that is easy to disassemble, including a cross shaft and two universal joint mounting parts. Through research and analysis, it is found that although the method of installation and disassembly using screws is more convenient and quick, improves assembly efficiency, avoids hammering, ensures that the shape of parts is not destroyed, reduces the scrap rate of parts, and reduces costs, but, to a certain extent, the following defects still exist.

[0004] For example, the universal joint coupling is still installed with screws during installation, so personnel need to use tools to turn the screws. This operation is time-consuming and labor-intensive, increasing the labor intensity of personnel, and it is impossible to lubricate the inside of the coupling. After long-term use, the inside will be worn out, affecting the service life. In order to solve the above technical problems, we have designed a universal joint coupling. Utility Model Content

[0005] The purpose of the utility model is to provide a universal joint coupling, which has the advantages of not requiring the use of tools during the disassembly and assembly process, higher disassembly and assembly efficiency, reduced labor intensity of personnel, having a lubrication function, and extending the service life, and solves the problem that the disassembly and assembly process is relatively time-consuming and labor-intensive, increases the labor intensity of personnel, has no lubrication function, and affects the service life.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a universal joint coupling, including a cross shaft, a mounting frame is movably sleeved on both sides of the left and right sides of the cross shaft, a mounting pin is inserted through the inner cavity of the cross shaft and the mounting frame, the inner cavity of the mounting pin is movably connected to a limiting mechanism, the limiting mechanism includes a connecting slide, a positioning spring is fixedly connected between the connecting slides on both sides, a positioning plug plate is fixedly connected to the side of the connecting slide away from the positioning spring, the positioning plug plate includes a plug plate body, an oil storage tank is opened on the inner side of the plug plate body, a cover plate is fixedly embedded in the outer side of the oil storage tank, and a sponge block is fixedly connected to the surface of the cover plate.

[0007] Preferably, the side of the positioning plug plate away from the connecting slide plate penetrates to the outside of the mounting pin and is provided with a chamfer, and the plug-in end of the mounting pin is provided with a mounting groove.

[0008] Preferably, a rubber protective plate is embedded in the outer side of the inner cavity of the installation groove, and grooves are formed on both sides of the outer surface of the rubber protective plate.

[0009] Preferably, an oil filling hole is opened on the left side of the inner cavity of the oil storage tank, and a rubber plug is fixedly inserted on the outer side of the inner cavity of the oil filling hole.

[0010] Preferably, both sides of the mounting frame are provided with limiting sliding grooves, and the inner cavity of the limiting sliding grooves is provided with oil drain grooves.

[0011] Preferably, an embedded groove is provided on the outer side of the oil storage tank, and connecting sleeves are welded on opposite sides of the left and right mounting frames.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] Push the positioning plug plates on both sides into the interior of the mounting pin, pull the mounting pin outward from the other end, and the mounting pin is moved out from the interior of the mounting frame and the cross shaft. During installation, push the positioning plug plates on both sides inward into the inner cavity of the mounting groove, insert them into the inner cavity of the mounting frame and push them inward with force, and move the positioning plug plates out to limit the mounting pin. In this way, disassembly and assembly do not require personnel to use tools to operate, which saves time and effort and further improves disassembly and assembly efficiency.

[0014] Inject the lubricating oil into the oil storage tank from the oil filling hole. After the lubricating oil is stored in the oil storage tank, it will penetrate into the limit slide groove through the sponge block. As the universal joint coupling flips during use, the lubricating oil in the limit slide groove will flow into the interior of the mounting frame and the cross shaft through the oil drain groove for lubrication. This can avoid internal wear after long-term use and extend the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is an axonometric drawing of the structure of the utility model;

[0016] Figure 2 It is an axonometric drawing of the cross shaft and the mounting frame of the utility model;

[0017] Figure 3 It is an internal axonometric view of the installation pin of the utility model;

[0018] Figure 4 It is an exploded view of the positioning plug board of the utility model.

[0019] In the figure: 1. cross shaft; 2. mounting frame; 3. connecting sleeve; 4. rubber protective plate; 5. mounting pin; 6. limiting mechanism; 7. limiting slide groove; 8. oil drain groove; 9. mounting groove; 10. positioning spring; 11. connecting slide plate; 12. positioning plug plate; 13. rubber plug; 14. oil filling hole; 15. plug plate body; 16. oil storage tank; 17. cover plate; 18. sponge block. DETAILED DESCRIPTION

[0020] See also Figure 1-Figure 4 A universal joint coupling comprises a cross shaft 1, a mounting frame 2 is movably sleeved on both sides of the cross shaft 1, a mounting pin 5 is inserted through the inner cavity of the cross shaft 1 and the mounting frame 2, and the inner cavity of the mounting pin 5 is movably connected to a limiting mechanism 6, the limiting mechanism 6 comprises a connecting slide 11, a positioning spring 10 is fixedly connected between the connecting slides 11 on both sides, a positioning plug plate 12 is fixedly connected to the side of the connecting slide 11 away from the positioning spring 10, the positioning plug plate 12 comprises a plug plate body 15, an oil storage tank 16 is opened on the inner side of the plug plate body 15, a cover plate 17 is fixedly embedded on the outer side of the oil storage tank 16, and the cover plate 17 has a sealing function by setting the cover plate 17, which can prevent the lubricating oil in the oil storage tank 16 from leaking, and a sponge block 18 is fixedly connected to the surface of the cover plate 17;

[0021] See also Figure 3 The side of the positioning plug plate 12 away from the connecting slide plate 11 penetrates to the outside of the mounting pin 5 and is chamfered, and the plug-in end of the mounting pin 5 is provided with a mounting groove 9. By providing the mounting groove 9, the limiting mechanism 6 can be easily installed;

[0022] See also Figure 3 A rubber protective plate 4 is embedded in the outer side of the inner cavity of the installation groove 9. By setting the rubber protective plate 4, the limiting mechanism 6 in the installation groove 9 can be protected to prevent debris from entering the interior and affecting the use. Both sides of the outer surface of the rubber protective plate 4 are provided with drawing grooves. By setting the drawing grooves, the rubber protective plate 4 can be easily pulled out;

[0023] See also Figure 4 An oil filling hole 14 is provided on the left side of the inner cavity of the oil storage tank 16, and a rubber plug 13 is fixedly inserted on the outer side of the inner cavity of the oil filling hole 14. By providing the rubber plug 13, the oil filling hole 14 can be easily opened;

[0024] See also Figure 2 , both sides of the mounting frame 2 are provided with limit slide grooves 7, and the inner cavity of the limit slide groove 7 is provided with an oil drain groove 8;

[0025] See also Figure 4 An embedded groove is provided on the outer side of the oil storage tank 16. By providing the embedded groove, the cover plate 17 can be easily installed. The opposite sides of the left and right mounting frames 2 are welded with connecting sleeves 3.

[0026] When in use, when it is necessary to disassemble the universal joint coupling, push the positioning plug plates 12 on both sides of the mounting pin 5 inwardly to make the positioning plug plates 12 on both sides completely enter the interior of the mounting pin 5, and then pull the mounting pin 5 outward from the other end, and the mounting pin 5 is removed from the interior of the mounting frame 2 and the cross shaft 1. In this way, the disassembly is completed. When installing, it is necessary to first push the positioning plug plates 12 on both sides inwardly to make them enter the inner cavity of the mounting groove 9 and compress the positioning spring 10, and then insert them into the inner cavity of the mounting frame 2 and push them inward with force to move them out from the other side of the mounting frame 2. At this time, the positioning spring 10 releases its elastic force to push the positioning plug plates 12 on both sides to move The card is released to limit the mounting pin 5 on one side of the mounting frame 2, so that the disassembly and assembly does not require the use of tools by personnel, which saves time and effort and further improves the disassembly and assembly efficiency. The personnel pulls the rubber plug 13 out of the oil filling hole 14, and then injects the lubricating oil from the oil filling hole 14 into the oil storage tank 16. The lubricating oil stored in the oil storage tank 16 will penetrate into the limiting slide groove 7 through the sponge block 18. As the universal joint coupling is flipped during use, the lubricating oil in the limiting slide groove 7 will flow into the interior of the mounting frame 2 and the cross shaft 1 through the oil drain groove 8 for lubrication. This can avoid internal wear after long-term use and extend the service life.

[0027] In summary: the universal joint coupling, through the coordinated use of the cross shaft 1, the mounting frame 2, the mounting pin 5, the limit mechanism 6, the limit slide groove 7, the oil drain groove 8, the mounting groove 9, the oil storage groove 16, the cover plate 17 and the sponge block 18, solves the problems of the time-consuming and labor-intensive disassembly and assembly process, increased labor intensity, lack of lubrication function, and shortened service life.

Claims

1. A universal joint coupling, comprising a cross shaft (1), characterized in that: The left and right sides of the cross shaft (1) are both movably sleeved with mounting frames (2); the inner cavities of the cross shaft (1) and the mounting frame (2) are penetrated with mounting pins (5) inserted therein; the inner cavities of the mounting pins (5) are movably connected to a limiting mechanism (6); the limiting mechanism (6) comprises a connecting slide plate (11); a positioning spring (10) is fixedly connected between the connecting slide plates (11) on both sides; a positioning plug plate (12) is fixedly connected to the side of the connecting slide plate (11) away from the positioning spring (10); the positioning plug plate (12) comprises a plug plate body (15); an oil storage tank (16) is provided on the inner side of the plug plate body (15); a cover plate (17) is fixedly embedded on the outer side of the oil storage tank (16); a sponge block (18) is fixedly connected to the surface of the cover plate (17).

2. A universal joint coupling according to claim 1, characterized in that: The side of the positioning plug plate (12) away from the connecting slide plate (11) penetrates to the outside of the mounting pin (5) and is provided with a chamfer, and the plug-in end of the mounting pin (5) is provided with a mounting groove (9).

3. A universal joint coupling according to claim 2, characterized in that: A rubber protective plate (4) is embedded in the outer side of the inner cavity of the installation groove (9), and grooves are provided on both sides of the outer surface of the rubber protective plate (4).

4. A universal joint coupling according to claim 1, characterized in that: An oil filling hole (14) is provided on the left side of the inner cavity of the oil storage tank (16), and a rubber plug (13) is fixedly inserted on the outer side of the inner cavity of the oil filling hole (14).

5. A universal joint coupling according to claim 1, characterized in that: Limiting slide grooves (7) are provided on both sides of the mounting frame (2), and an oil drain groove (8) is provided in the inner cavity of the limiting slide groove (7).

6. A universal joint coupling according to claim 1, characterized in that: An embedded groove is provided on the outer side of the oil storage tank (16), and connecting sleeves (3) are welded on opposite sides of the left and right mounting frames (2).

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