High-precision coupler

Abstract

The utility model provides a high-precision coupler which comprises a first half shaft, an intermediate shaft, a second half shaft, a first diaphragm and a second diaphragm, the first half shaft, the first diaphragm, the intermediate shaft, the second diaphragm and the second half shaft are sequentially arranged from left to right, and the first half shaft, the first diaphragm and the intermediate shaft are connected through a connecting mechanism. The middle shaft, the second diaphragm and the second half shaft are connected through a connecting mechanism, the outer wall of the first half shaft and the outer wall of the second half shaft are both sleeved with protective covers, anti-loosening baffles are fixedly installed in the protective covers, and installation mechanisms are arranged on the two side walls of each protective cover. The inner side wall of the first half shaft and the inner side wall of the second half shaft are each fixedly provided with a pre-connecting insertion rod. The high-precision coupling not only has a protection function, but also can prevent the nut from loosening, in addition, pre-connection can be carried out during installation, and the working efficiency during installation is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of couplings, and more specifically, to a high-precision coupling. Background Technology

[0002] A coupling, also known as a shaft coupling, is a device that connects two shafts or a shaft and a rotating component, allowing them to rotate together during motion and power transmission, and remaining connected under normal circumstances. Sometimes it also serves as a safety device to prevent the connected components from being subjected to excessive loads, providing overload protection.

[0003] When using existing high-precision diaphragm couplings, the diaphragm lifespan will be shortened when the working environment is humid or dusty. Moreover, the coupling nuts will loosen after long-term use. In addition, the intermediate shaft of the coupling lacks pre-connection, making installation inconvenient.

[0004] Therefore, we have made improvements and proposed a high-precision coupling. Utility Model Content

[0005] The purpose of this utility model is to address the following issues with existing high-precision diaphragm couplings: when used in harsh working environments such as humid or dusty conditions, the lifespan of the diaphragm in the coupling will be shortened, and the nuts of the coupling will loosen after prolonged use. In addition, the intermediate shaft of the coupling lacks pre-connection, making installation inconvenient.

[0006] To achieve the above-mentioned objectives, this utility model provides the following technical solution:

[0007] High-precision couplings are used to improve the above-mentioned problems.

[0008] The application is as follows:

[0009] It includes a first half-shaft, an intermediate shaft, a second half-shaft, a first diaphragm, and a second diaphragm, arranged sequentially from left to right. The first half-shaft, the first diaphragm, and the intermediate shaft are connected by a connecting mechanism, and the intermediate shaft, the second diaphragm, and the second half-shaft are also connected by a connecting mechanism. The outer walls of the first and second half-shafts are fitted with protective covers, and anti-loosening baffles are fixedly installed inside the protective covers. Installation mechanisms are provided on both side walls of the protective covers, and pre-connecting rods are fixedly installed on the inner side walls of the first and second half-shafts.

[0010] As a preferred technical solution of this application, a first pre-connection insertion hole is provided on both sides of the intermediate shaft, and a second pre-connection insertion hole is provided on both the first diaphragm and the second diaphragm, and the first pre-connection insertion hole and the second pre-connection insertion hole cooperate with the pre-connection insertion rod.

[0011] As a preferred technical solution of this application, the connecting mechanism includes a screw, and a nut is threaded onto the screw.

[0012] As a preferred technical solution of this application, the installation mechanism includes an installation ring integrally formed on both sides of the protective cover, and the installation ring is provided with threaded holes evenly distributed on the installation ring.

[0013] As a preferred technical solution of this application, threaded grooves are uniformly formed on the surfaces of both the first half-shaft and the second half-shaft, and the threaded grooves match the threaded holes.

[0014] As a preferred technical solution of this application, the number of anti-loosening baffles inside the protective cover is two.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0016] In the scheme of this application:

[0017] 1. By setting up a protective cover, the diaphragm can be protected and prevented from being exposed to the outside, thus solving the problem in the prior art that the service life of the coupling diaphragm will be shortened when the working environment is in a humid or dusty environment;

[0018] 2. By setting an anti-loosening baffle inside the protective cover, the anti-loosening baffle inside the protective cover can block the edge of the nut after the protective cover is installed, effectively preventing the nut from loosening after long-term use, and solving the problem of the coupling nut loosening after long-term use in the prior art;

[0019] 3. By first fitting the first and second half-shafts onto the connected output shaft, then fitting the second pre-connection hole on the first diaphragm onto the pre-connection rod on the first half-shaft, then fitting the second pre-connection hole on the second diaphragm onto the pre-connection rod on the second half-shaft, and finally fitting the first pre-connection hole on the intermediate shaft onto the pre-connection rod, this pre-connection method effectively improves the work efficiency during installation and solves the problem of the lack of pre-connection when installing the intermediate shaft of the coupling in the prior art, which makes installation inconvenient. Attached Figure Description

[0020] Figure 1 A schematic diagram of the high-precision coupling provided in this application;

[0021] Figure 2 A schematic diagram of the high-precision coupling provided in this application after removing the protective cover;

[0022] Figure 3 An exploded structural diagram of the high-precision coupling provided in this application;

[0023] Figure 4A schematic diagram of the internal structure of the protective cover of the high-precision coupling provided in this application;

[0024] Figure 5 A schematic diagram of the anti-loosening baffle of the high-precision coupling provided in this application in the state of blocking the nut;

[0025] Figure 6 A schematic diagram of the pre-connection insert structure of the high-precision coupling provided in this application;

[0026] Figure 7 A schematic diagram of the first pre-connection socket structure of the high-precision coupling provided in this application.

[0027] The image shows:

[0028] 1. First half-shaft; 2. Intermediate shaft; 3. Second half-shaft; 4. First diaphragm; 5. Second diaphragm; 6. Protective cover; 7. Anti-loosening baffle; 8. Pre-connection rod; 9. First pre-connection socket; 10. Mounting ring; 11. Threaded hole; 12. Threaded groove; 13. Nut; 14. Second pre-connection socket. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.

[0030] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0033] In the description of this utility model, it should be noted that the terms "upper," "lower," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms 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 on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance. Example

[0034] like Figure 1-7 As shown, this embodiment proposes a high-precision coupling, including a first half-shaft 1, an intermediate shaft 2, a second half-shaft 3, a first diaphragm 4, and a second diaphragm 5. The first half-shaft 1, first diaphragm 4, intermediate shaft 2, second diaphragm 5, and second half-shaft 3 are arranged sequentially from left to right. The first half-shaft 1, first diaphragm 4, and intermediate shaft 2 are connected by a connecting mechanism, using a screw and nut 13 to connect them together. The intermediate shaft 2, second diaphragm 5, and second half-shaft 3 are also connected by a connecting mechanism, and then a screw and nut 13 are used to connect them together. The first half-shaft 1 and the second half-shaft 3 are both fitted with protective covers 6 on their outer walls. The protective covers 6 have a protective function, which can protect the diaphragm and increase the service life of the diaphragm. An anti-loosening baffle 7 is fixedly installed inside the protective cover 6. The anti-loosening baffle 7 abuts against the nut 13 to prevent the nut 13 from loosening. The protective cover 6 has installation mechanisms on both side walls. The first half-shaft 1 and the second half-shaft 3 are fixedly installed with pre-connection rods 8, which have a protective function and can prevent the nut from loosening. In addition, pre-connection can be performed during installation, which can effectively improve the work efficiency during installation. The diameter of the hole in this coupling is precision machined during casting, which makes it more accurate during use.

[0035] First pre-connection holes 9 are provided on both sides of the intermediate shaft 2, and second pre-connection holes 14 are provided on the first diaphragm 4 and the second diaphragm 5. The first pre-connection holes 9 and the second pre-connection holes 14 cooperate with the pre-connection rod 8. The second pre-connection holes 14 on the first diaphragm 4 are fitted onto the pre-connection rod 8 on the first half shaft 1, and then the second pre-connection holes 14 on the second diaphragm 5 are fitted onto the pre-connection rod 8 on the second half shaft 3. Finally, the first pre-connection holes 9 on the intermediate shaft 2 are fitted onto the pre-connection rod 8, so that pre-connection can be performed during installation, which effectively improves the work efficiency during installation.

[0036] The connecting mechanism includes a screw with a nut 13 threaded onto it. The screw and nut 13 are used to connect the first half-shaft 1, the first diaphragm 4, and the intermediate shaft 2 together. Then, the screw and nut 13 are used to connect the intermediate shaft 2, the second diaphragm 5, and the second half-shaft 3 together. This pre-connection method effectively improves the work efficiency during installation.

[0037] The mounting mechanism includes mounting rings 10 integrally formed on both sides of the protective cover 6. Threaded holes 11 are evenly provided on the mounting rings 10, and threaded grooves 12 are evenly provided on the surfaces of the first half-shaft 1 and the second half-shaft 3. The threaded grooves 12 match the threaded holes 11. First, the bolts are connected to the threaded holes 11 on the mounting rings 10, and then the bolts are connected to the threaded grooves 12, so that the protective cover 6 can be installed on the first half-shaft 1 and the second half-shaft 3.

[0038] There are two anti-loosening baffles 7 inside the protective cover 6. The anti-loosening baffles 7 block the nut 13 to prevent the nut 13 from loosening.

[0039] Specifically, when using this high-precision coupling: first, place the first half-shaft 1 and the second half-shaft 3 onto the connected output shaft respectively; then, place the second pre-connection socket 14 on the first diaphragm 4 onto the pre-connection rod 8 on the first half-shaft 1; then, place the second pre-connection socket 14 on the second diaphragm 5 onto the pre-connection rod 8 on the second half-shaft 3; finally, place the first pre-connection socket 9 on the intermediate shaft 2 onto the pre-connection rod 8. Then, use the screw and nut 13 to connect the first half-shaft 1, the first diaphragm 4, and the intermediate shaft 2 together; and then use the screw and nut 13 to connect the intermediate shaft 2, the second diaphragm 5, and the second half-shaft 3 together. This pre-connection method effectively improves the work efficiency during installation.

[0040] Next, connect the bolt to the threaded hole 11 on the mounting ring 10, and then connect the bolt to the threaded groove 12. Then, install the protective cover 6 on the first half-shaft 1 and the second half-shaft 3. After the protective cover 6 is installed, the anti-loosening baffle 7 inside the protective cover 6 can block the edge of the nut 13, effectively preventing the nut 13 from loosening after long-term use.

[0041] All technical features in this embodiment can be freely combined according to actual needs.

[0042] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. A high-precision coupling, comprising a first half-shaft (1), an intermediate shaft (2), a second half-shaft (3), a first diaphragm (4), and a second diaphragm (5), wherein the first half-shaft (1), the first diaphragm (4), the intermediate shaft (2), the second diaphragm (5), and the second half-shaft (3) are arranged sequentially from left to right, characterized in that, The first half-shaft (1), the first diaphragm (4) and the intermediate shaft (2) are connected by a connecting mechanism. The intermediate shaft (2), the second diaphragm (5) and the second half-shaft (3) are also connected by a connecting mechanism. The outer walls of the first half-shaft (1) and the second half-shaft (3) are fitted with protective covers (6). Anti-loosening baffles (7) are fixedly installed inside the protective covers (6). The two side walls of the protective covers (6) are provided with installation mechanisms. The inner side walls of the first half-shaft (1) and the second half-shaft (3) are fixedly installed with pre-connecting rods (8).

2. The high-precision coupling according to claim 1, characterized in that, The intermediate shaft (2) has a first pre-connection socket (9) on both sides, and a second pre-connection socket (14) is provided on the first diaphragm (4) and the second diaphragm (5). The first pre-connection socket (9) and the second pre-connection socket (14) cooperate with the pre-connection rod (8).

3. A high-precision coupling according to claim 1, characterized in that, The connecting mechanism includes a screw, on which a nut (13) is threadedly connected.

4. A high-precision coupling according to claim 1, characterized in that, The mounting mechanism includes mounting rings (10) integrally formed on both sides of the protective cover (6), and threaded holes (11) are evenly provided on the mounting rings (10).

5. A high-precision coupling according to claim 4, characterized in that, The first half-shaft (1) and the second half-shaft (3) are both uniformly provided with threaded grooves (12), and the threaded grooves (12) are matched with the threaded holes (11).

6. A high-precision coupling according to claim 1, characterized in that, The number of anti-loosening baffles (7) inside the protective cover (6) is two.

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