Multi-tooth meshing type coupler structure

Abstract

The utility model discloses a multi-tooth meshing type coupler structure, which relates to the field of couplings and comprises a first sleeve. The second sleeve is arranged at one end of the first sleeve; the fixing assembly is arranged at the flange parts of the first sleeve and the second sleeve and is used for realizing anti-loosening connection of the sleeves; the connecting shaft sleeves are symmetrically arranged in the first sleeve and the second sleeve; the sealing assembly is arranged in the first sleeve and the second sleeve in a sleeving mode, and multi-layer sealing of the lubricating oil is achieved; the sealing plate is arranged in the sealing assembly and movably connected with the first sleeve and the second sleeve. Lubricating oil can form an oil film on the meshing face of the outer gear ring and the inner gear ring more efficiently and comprehensively, direct contact hard grinding of metal is avoided, the tooth face abrasion rate is reduced, vibration energy is converted into locking force through the fixing assembly, and tooth face abrasion and transmission errors are reduced; and lubricating oil between the inner gear ring and the outer gear ring can be stored for a long time.

Description

Technical Field

[0001] This utility model relates to the field of couplings, and more specifically, to a multi-tooth meshing coupling structure. Background Technology

[0002] A coupling is a core component in a mechanical transmission system used to connect two shafts (driving shaft and driven shaft) to rotate together and transmit torque. Couplings are generally divided into two main categories: rigid couplings (such as flange couplings and sleeve couplings) and flexible couplings (such as gear couplings and slider couplings). Gear couplings, due to their internal and external gear meshing structure, have strong compensation capabilities and are suitable for heavy-duty and low-temperature applications.

[0003] For example, the authorized utility model patent with application number 202321960728.X discloses a combined drum-shaped gear coupling, which includes an external gear, the external gear meshing with an internal gear, a side baffle movably connected to the side of the external gear, a sealing ring movably installed between the external gear and the side baffle, an oil injection pipe provided on the external gear, and an oil guide groove provided on the inner wall of the external gear.

[0004] However, in existing gear couplings, sealing is achieved through traditional sealing plates. Over prolonged operation, lubricating oil gradually seeps from the joints of the sealing plates, reducing lubrication effectiveness. Simultaneously, vibrations generated by the rotating shaft during extended operation can cause the bolts between the couplings to gradually loosen, weakening the sealing effect of the sealing plates and making the coupling more prone to unexpected situations such as gear disengagement.

[0005] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0006] In view of the problems in the related technologies, this utility model proposes a multi-tooth meshing coupling structure to overcome the above-mentioned technical problems existing in the existing related technologies.

[0007] Therefore, the specific technical solution adopted by this utility model is as follows:

[0008] A multi-tooth meshing coupling structure includes: a first sleeve; a second sleeve disposed at one end of the first sleeve; a fixing assembly disposed at the flange portion of the first sleeve and the second sleeve to achieve an anti-loosening connection of the sleeves; a coupling sleeve symmetrically disposed inside the first sleeve and the second sleeve; a sealing assembly sleeved inside the first sleeve and the second sleeve to achieve multi-layer sealing of lubricating oil; and a sealing plate disposed inside the sealing assembly and movably connected to the first sleeve and the second sleeve.

[0009] Furthermore, in order to achieve sufficient lubrication of the gear block, both the first and second sleeves are equipped with internal gear rings. The top and sides of the internal gear rings are provided with oil guide grooves. The inner walls of the first and second sleeves are provided with oil injection channels, and one end of the oil injection channel is provided with a sealing cap.

[0010] Furthermore, in order to achieve the meshing motion between the sleeve and the coupling sleeve, an external gear ring is provided on the outer side of the coupling sleeve to mesh with the internal gear ring.

[0011] Furthermore, in order to achieve a tight connection between the first sleeve and the second sleeve, the fixing assembly includes several threaded holes provided at the flange positions of the first sleeve and the second sleeve. A first gasket and a second gasket on one side of the first gasket are provided at one end of each threaded hole on the first sleeve. A bolt is provided inside the threaded hole, and a nut is provided on the outer side of the bolt near the second gasket.

[0012] Furthermore, in order to achieve vibration resistance of the bolt and nut, one end of the first washer and the second washer are provided with inclined wedge teeth, and the other end of the first washer and the second washer are provided with inclined short teeth, and the first washer and the second washer are arranged in opposite directions.

[0013] Furthermore, in order to achieve multi-layer sealing of the lubricating oil, the sealing assembly includes a support ring disposed within the first sleeve and the second sleeve, a first baffle disposed inside the support ring near the external toothed ring, and a second baffle disposed at the bottom of the support ring away from the first baffle.

[0014] Furthermore, in order to allow the leaked lubricating oil to flow back, a flow-blocking cavity is formed between the first baffle and the second baffle, and a flow-back surface is provided on the second baffle near the bottom of the first baffle.

[0015] The beneficial effects of this utility model are as follows:

[0016] 1. The oil guide groove allows for more efficient and comprehensive oil film formation on the meshing surfaces of the external and internal gear rings, preventing direct metal-to-metal contact and reducing sliding resistance. This results in more efficient torque transmission and significantly reduced gear wear. Furthermore, oil injection is performed through the oil filling channel without disassembling the coupling. The fixing assembly tightly connects the first and second sleeves, converting vibration energy into locking force to ensure a tight flange fit, reducing gear wear and transmission errors. It also disperses impact force during sudden torque surges at coupling start-up or emergency stop, preventing bolt shearing and breakage. The sealing assembly ensures long-term lubrication between the internal and external gear rings, preventing leakage and insufficient lubrication that could reduce transmission accuracy.

[0017] 2. By using a fixing component, the first sleeve and the second sleeve are tightly connected, converting vibration energy into locking force, ensuring that the flange faces fit tightly, reducing wear on the tooth surface and transmission error. At the same time, when the coupling is subjected to instantaneous impact torque during startup or emergency stop, it can disperse the impact force, prevent bolt shearing and breakage, and extend the service life of the flange and the inner and outer toothed rings.

[0018] 3. By using a sealing component, the lubricating oil between the inner and outer gear rings can be stored for a long time. This prevents insufficient lubrication of the equipment after lubricating oil leakage, which would cause hard wear due to direct contact between the friction tooth surfaces and reduce the transmission accuracy of the equipment.

[0019] 4. The multi-tooth meshing coupling, consisting of a connecting sleeve, an external gear ring, an internal gear ring, a first sleeve, a second sleeve, and a sealing assembly, makes the torque transmission more stable. Compared with traditional couplings, it improves the load capacity, can transmit greater torque, is not easily damaged under high load and frequent start-stop use, and has strong deviation compensation capabilities in both axial and radial directions. Attached Figure Description

[0020] 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.

[0021] Figure 1 This is a structural schematic diagram of a multi-tooth meshing coupling structure according to an embodiment of the present utility model;

[0022] Figure 2 This is one of the cross-sectional views of a multi-tooth meshing coupling structure according to an embodiment of the present utility model;

[0023] Figure 3 This is a second sectional view of a multi-tooth meshing coupling structure according to an embodiment of the present utility model;

[0024] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0025] Figure 5 yes Figure 3 A magnified view of a section at point B in the middle;

[0026] Figure 6 This is a three-dimensional assembly diagram of a multi-tooth meshing coupling structure according to an embodiment of the present utility model;

[0027] Figure 7 yes Figure 6 A magnified view of a section at point C.

[0028] In the picture:

[0029] 1. First sleeve; 2. Second sleeve; 3. Fixing assembly; 301. Threaded hole; 302. First gasket; 303. Second gasket; 304. Bolt; 305. Nut; 306. Inclined wedge tooth; 307. Inclined short tooth; 4. Coupling sleeve; 401. External gear ring; 5. Sealing assembly; 501. Support ring; 502. First baffle; 503. Second baffle; 504. Flow-blocking cavity; 505. Return surface; 6. Sealing plate; 7. Internal gear ring; 701. Oil guide groove; 702. Oil injection channel; 703. Sealing cap. Detailed Implementation

[0030] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0031] According to an embodiment of the present invention, a multi-tooth meshing coupling structure is provided.

[0032] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-7 As shown, the multi-tooth meshing coupling structure according to an embodiment of the present invention includes: a first sleeve 1; a second sleeve 2 disposed at one end of the first sleeve 1; a fixing component 3 disposed at the flange portion of the first sleeve 1 and the second sleeve 2 to achieve an anti-loosening connection of the sleeves; a coupling sleeve 4 symmetrically disposed inside the first sleeve 1 and the second sleeve 2; a sealing component 5 sleeved inside the first sleeve 1 and the second sleeve 2 to achieve multi-layer sealing of the lubricating oil; and a sealing plate 6 disposed inside the sealing component 5 and movably connected to the first sleeve 1 and the second sleeve 2.

[0033] With the help of the above technical solution, the oil guide groove 701 allows the lubricating oil to form an oil film more efficiently and comprehensively on the meshing surfaces of the external gear ring 401 and the internal gear ring 7, avoiding direct metal-to-metal contact and hard wear, and reducing the sliding resistance of the tooth surface. This makes torque transmission more efficient and significantly reduces the tooth surface wear rate. At the same time, oil injection can be performed through the oil injection channel 702 without disassembling the coupling. The fixing component 3 tightly connects the first sleeve 1 and the second sleeve 2, converting vibration energy into locking force to ensure a tight fit between the flange surfaces, reducing tooth surface wear and transmission errors. At the same time, when the coupling is subjected to instantaneous impact torque during start-up or emergency stop, it can disperse the impact force and prevent the bolt 304 from shearing and breaking. The sealing component 5 ensures that the lubricating oil between the internal gear ring 7 and the external gear ring 401 can be stored for a long time, preventing lubricating oil leakage that could lead to insufficient lubrication of the equipment, direct contact and hard wear of the friction tooth surfaces, and a decrease in the transmission accuracy of the equipment.

[0034] In one embodiment, for the first sleeve 1 and the second sleeve 2, both the first sleeve 1 and the second sleeve 2 are provided with an internal gear ring 7. The top and side of the internal gear ring 7 are provided with oil guide grooves 701. An oil injection channel 702 is provided in the inner wall of the first sleeve 1 and the second sleeve 2, and a sealing cap 703 is provided at one end of the oil injection channel 702. An external gear ring 401 that meshes with the internal gear ring 7 is provided on the outer side of the coupling sleeve 4.

[0035] It should be noted that the coupling sleeve 4 and the shaft to be connected are connected by a key. This is existing technology and will not be elaborated on here.

[0036] In one embodiment, the fixing component 3 includes a plurality of threaded holes 301 disposed at the flange portions of the first sleeve 1 and the second sleeve 2. A first gasket 302 and a second gasket 303 on one side of each threaded hole 301 on the first sleeve 1 are provided at one end. A bolt 304 is disposed inside each threaded hole 301, and a nut 305 is disposed on the outer side of the bolt 304 near the second gasket 303. An inclined wedge tooth 306 is provided at one end of both the first gasket 302 and the second gasket 303, and an inclined short tooth 307 is provided at the other end of both gaskets. The first gasket 302 and the second gasket 303 are arranged in opposite directions to achieve a tight connection between the sleeves.

[0037] It should be added that the fixing component 3 uses the principle of never loosening bolts, and the vibration force is converted into a self-locking force through the interlocking washers. This is existing technology and will not be elaborated here.

[0038] The working principle of the fixing component 3 is as follows: Using bolt 304, the first sleeve 1 and the second sleeve 2 are tightly connected and fixed through the threaded hole 301. Next, a first washer 302 with inclined short teeth 307 is fitted onto the outside of the bolt 304 and contacts the first sleeve 1. Then, one end of the second washer 303 with inclined wedge teeth 306 is fitted onto the outside of the bolt 304 and engages with the inclined wedge teeth 306 of the first washer 302, so that the inclined wedge teeth 306 on the first washer 302 and the second washer 303 are relatively close together. Finally, a nut 305 is installed on the bolt 304. With the inclined short teeth 307 facing the planes of the nut 305 and the first sleeve 1 respectively, when the bolt 304 tends to loosen due to vibration, the nut 305 will attempt to rotate out. At this time, the relatively fitted inclined wedge teeth 306 will produce relative misalignment. Because the wedge angle is greater than the bolt thread helix angle, the lifting angle of the first washer 302 and the second washer 303 will exceed the lifting height of the thread loosening push, forcing the bolt 304 to be pulled closer, forming a mechanical self-locking. At the same time, the inclined short teeth 307 are embedded in the nut 305 and the first sleeve 1, preventing the first washer 302 and the second washer 303 from rotating on their own.

[0039] In one embodiment, the sealing assembly 5 includes a support ring 501 disposed within the first sleeve 1 and the second sleeve 2. A first baffle 502 is disposed inside the support ring 501 near the external toothed ring 401, and a second baffle 503 is disposed at the bottom of the support ring 501 away from the first baffle 502. A flow-blocking cavity 504 is formed between the first baffle 502 and the second baffle 503. A return surface 505 is disposed on the second baffle 503 near the bottom of the first baffle 502, thereby achieving a seal for the lubricating oil.

[0040] It should be noted that the sealing component 5 is made of rubber material.

[0041] The working principle of the sealing component 5 is as follows: when lubricating oil leaks outward through the coupling sleeve 4, it is initially blocked by the first baffle 502. The lubricating oil that fails to be blocked gradually flows into the flow-blocking cavity 504 between the first baffle 502 and the second baffle 503, and is returned through the return surface 505 of the second baffle 503 under the second baffle 503's further blocking.

[0042] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0043] In practical applications, firstly, the sealing assembly 5 is placed inside the first sleeve 1 and the second sleeve 2. Next, the coupling sleeve 4 is placed inside the two sleeves, and the external gear ring 401 and the internal gear ring 7 are engaged. Then, the sealing plate 6 is placed inside the sealing assembly 5 (the working principle of the sealing assembly 5 is as described above). After the internal parts of the two sleeves are installed, the flanges of the first sleeve 1 and the second sleeve 2 are fitted together and aligned with the threaded holes 301. Then, the two sleeves are tightly connected by the bolts 304 in the fixing assembly 3 (the working principle of the fixing assembly 3 is as described above) with the cooperation of the first gasket 302 and the second gasket 303. After assembly, the sealing cover 703 is opened, and lubricating oil is injected into the two sleeves through the oil injection channel 702. Under the sealing of the sealing plate 6 and the sealing assembly 5, the lubricating oil forms an oil film on the contact surface of the external gear ring 401 and the internal gear ring 7 through the oil guide groove 701.

[0044] In summary, by utilizing the above-mentioned technical solution of this utility model, the oil guide groove 701 enables the lubricating oil to form an oil film more efficiently and comprehensively on the meshing surfaces of the external gear ring 401 and the internal gear ring 7, avoiding direct metal-to-metal contact and hard wear, and reducing the sliding resistance of the tooth surface. This results in more efficient torque transmission and significantly reduces tooth surface wear. Simultaneously, oil injection can be performed through the oil injection channel 702 without disassembling the coupling. The fixing component 3 tightly connects the first sleeve 1 and the second sleeve 2, converting vibration energy into locking force, ensuring a tight fit between the flange surfaces, reducing tooth surface wear and transmission errors. Furthermore, when the coupling is subjected to instantaneous impact torque during startup or emergency stop, the impact force can be dispersed to prevent bolt 304 from shearing and breaking. The sealing component 5 ensures that the lubricating oil between the internal gear ring 7 and the external gear ring 401 can be stored for a long time, preventing lubricating oil leakage that could lead to insufficient lubrication and a decrease in transmission accuracy.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A multi-tooth meshing coupling structure, characterized in that, include: First sleeve (1); The second sleeve (2) is disposed at one end of the first sleeve (1); The fixing component (3) is set at the flange of the first sleeve (1) and the second sleeve (2) to achieve an anti-loosening connection of the sleeve; The coupling sleeve (4) is symmetrically arranged inside the first sleeve (1) and the second sleeve (2); The sealing component (5) is fitted inside the first sleeve (1) and the second sleeve (2) to achieve multi-layer sealing of the lubricating oil; A sealing plate (6) is disposed inside the sealing assembly (5) and is movably connected to the first sleeve (1) and the second sleeve (2).

2. The multi-tooth meshing coupling structure according to claim 1, characterized in that, Both the first sleeve (1) and the second sleeve (2) are provided with an internal toothed ring (7). The top and side of the internal toothed ring (7) are provided with an oil guide groove (701). The inner walls of the first sleeve (1) and the second sleeve (2) are provided with an oil injection channel (702). One end of the oil injection channel (702) is provided with a sealing cap (703).

3. The multi-tooth meshing coupling structure according to claim 2, characterized in that, The outer side of the coupling sleeve (4) is provided with an outer toothed ring (401) that meshes with the inner toothed ring (7).

4. The multi-tooth meshing coupling structure according to claim 1, characterized in that, The fixing component (3) includes a plurality of threaded holes (301) provided at the flange of the first sleeve (1) and the second sleeve (2). One end of each threaded hole (301) on the first sleeve (1) is provided with a first gasket (302) and a second gasket (303) on one side of the first gasket (302). A bolt (304) is provided inside the threaded hole (301), and a nut (305) is provided on the outer side of the bolt (304) near the second washer (303).

5. The multi-tooth meshing coupling structure according to claim 4, characterized in that, One end of the first gasket (302) and the second gasket (303) is provided with an inclined wedge tooth (306), and the other end of the first gasket (302) and the second gasket (303) is provided with an inclined short tooth (307), and the first gasket (302) and the second gasket (303) are arranged oppositely.

6. The multi-tooth meshing coupling structure according to claim 3, characterized in that, The sealing assembly (5) includes a support ring (501) disposed in the first sleeve (1) and the second sleeve (2). A first baffle (502) is disposed inside the support ring (501) in the direction close to the external toothed ring (401). A second baffle (503) is disposed at the bottom of the support ring (501) in the direction away from the first baffle (502).

7. The multi-tooth meshing coupling structure according to claim 6, characterized in that, A flow-blocking cavity (504) is formed between the first baffle (502) and the second baffle (503), and a return surface (505) is provided on the second baffle (503) near the bottom of the first baffle (502).

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