Diaphragm pin shaft structure of wind power coupling

Abstract

The utility model discloses a diaphragm pin shaft structure of a wind power coupling. According to the technical key points, the diaphragm comprises a disc-shaped main body, a diaphragm and a pin shaft, a shaft sleeve is installed in the diaphragm, the pin shaft comprises an installation section and a fixing section, a connecting hole used for being in interference fit with the installation section is formed in the disc-shaped main body, the installation section has the inclination in the same direction as the connecting hole, a threaded section is arranged at the end of the installation section, and a fastening nut is arranged on the threaded section. The diaphragm mounting structure has the advantages that the pin shaft is placed in the connecting hole, then the fastening nut is tightened, and the mounting section gradually gets close to the small-diameter end of the connecting hole in the tightening process of the fastening nut, so that the effect that the mounting section is gradually in interference fit with the connecting hole is achieved, beating is not needed in the process, the mounting difficulty of the diaphragm is reduced, and then the diaphragm is mounted by tightening the compression bolt. The first gasket and the pressing cover clamp the shaft sleeve, so that the diaphragm is tightly fixed on the pin shaft, and through the two points, the mounting process of the diaphragm has the characteristics of convenience in mounting and high reliability at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical technical field especially relates to a film sheet pin shaft structure of wind power coupling. BACKGROUND

[0002] The coupling is a key mechanical component in the wind turbine generator unit, mainly used for connecting different shaft systems in the transmission system to realize efficient transmission of power, and compensating for installation errors, vibration and impact to protect stable operation of the equipment.

[0003] In the previous application, the coupling is usually fixed with the film sheet through the pin shaft structure, and the pin shaft is interference fit with the pin hole to ensure the stability of the film sheet installation, but the interference fit process is usually accompanied by violent smashing, and the pin shaft is knocked into the pin hole, which will cause damage to the coupling and even the wind turbine generator unit.

[0004] Therefore, the Chinese patent with the publication number CN117588502A: a film sheet mounting structure, a wind power coupling, a wind turbine and an installation method, provides a method to solve the problem, the technical key points of which are: including a coupling disc and a film sheet group fixedly connected to the coupling disc through a film sheet pin shaft, the film sheet group includes a plurality of film sheets with mounting holes at both ends and a positioning sleeve for riveting a plurality of film sheets through the mounting holes, the film sheet pin shaft includes a connecting end for the riveting ring to be fitted and a positioning end connected with the coupling disc, the riveting ring is transitionally fitted with the connecting end, the coupling disc is provided with a positioning groove for the positioning end to be inserted, the positioning end is transitionally fitted with the positioning groove, and the coupling disc and the positioning end are provided with a locking assembly for fixing the positioning end and the coupling disc.

[0005] The above-mentioned scheme makes the riveting ring and the connecting section transitionally fitted through the cooperation of the positioning sleeve and the film sheet pin shaft, thereby reducing the installation difficulty of the film sheet, so that the film sheet does not need to be knocked during installation, and damage to the internal structure is avoided, but the disc-shaped main body and the film sheet of the above-mentioned scheme will interfere with each other, so that tools need to be used to temporarily deform the film sheet during installation in order to install the pin shaft, and since the tools are highly specialized, if the tools are forgotten during installation or the tools are damaged, the pin shaft cannot be installed in place.

[0006] Therefore, a new method is needed to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0007] The utility model relates to mechanical technical field especially relates to a film sheet pin shaft structure of wind power coupling.

[0008] The utility model discloses a technical scheme that solves the above technical problem is adopted: a kind of diaphragm pin shaft structure of wind power coupling, including disc body, diaphragm and pin shaft, the shaft sleeve is installed in the diaphragm, the pin shaft is used to pass through the shaft sleeve and is fixedly connected with the disc body, the pin shaft includes installation section and fixed section, the connecting hole with the installation section interference fit and with inclination is set on the disc body, the installation section has the inclination with the connecting hole same direction, the end of the installation section is provided with threaded section, and the fastening nut is threadedly connected on the threaded section.

[0009] By adopting the above setting: fastening nut is tightened on threaded section, so that connecting hole and installation section gradually interference fit, so as to realize the effect of tight connection without knocking, and then the shaft sleeve is fixed by compression bolt, so as to realize the connection of diaphragm and disc body.

[0010] Further: the fixed section is provided with the compression cover abutting against the shaft sleeve, and the compression bolt for fixing the compression cover is threadedly connected on the fixed section.

[0011] By adopting the above setting: compression cover and compression bolt are the specific structure of the connection of shaft sleeve and pin shaft, the compression cover is fixed on pin shaft by compression bolt, and the shaft sleeve is abutted on disc body by the abutting mode of compression cover and shaft sleeve, so as to realize the effect that the shaft sleeve is clamped between disc body and compression cover, and then the fixation of shaft sleeve is realized.

[0012] Further: the first washer is arranged between the shaft sleeve and the disc body, and the first washer is used for abutting against the disc body and clamping the shaft sleeve together with the compression cover.

[0013] By adopting the above setting: the first washer changes the direct abutment of shaft sleeve and disc body to the abutment of first washer while keeping the shaft sleeve clamped, so that a certain distance is maintained between diaphragm and disc body, and then the interference between diaphragm and disc body during installation and working process is avoided, and normal installation and working are ensured.

[0014] Further: the second washer is further arranged on the threaded section, and the second washer is located between the disc body and the fastening nut.

[0015] By adopting the above setting: the second washer can disperse the pressure generated by fastening nut on disc body to a larger area, so as to obtain higher stability and ensure the connection strength.

[0016] Further: the minimum diameter of the connecting hole is located at the end of the disc body away from the shaft sleeve.

[0017] By adopting the above settings, the slope of the mounting section can also be determined, and the slope direction is exactly consistent with the movement direction of the mounting section when the fastening nut is tightened. This further ensures that the mounting section and the connecting hole can gradually achieve an interference fit as the fastening nut is tightened, which further limits the specific method of interference connection between the mounting section and the connecting hole.

[0018] Compared with the prior art, the advantages of this utility model are:

[0019] 1. By inserting the angled pin into the connecting hole and then tightening the fastening nut, the installation section will gradually move closer to the smaller diameter end of the connecting hole during the tightening process, thereby achieving a gradual interference fit with the connecting hole. Then, by tightening the clamping bolt, the first washer and the clamping cover clamp the bushing, thereby firmly fixing the diaphragm to the pin. This makes the connection between the pin and the disc-shaped body and the diaphragm more secure, thus extending the maintenance cycle of the coupling and giving it a longer service life.

[0020] 2. The above process is entirely fixed by bolts and nuts, which can achieve an interference fit without hammering, without damaging the internal parts, and no special tools are needed. It can be quickly installed directly with general tools. Attached Figure Description

[0021] Figure 1 A cross-sectional view of a diaphragm pin structure for a wind turbine coupling provided by this utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A.

[0023] Figure descriptions: 1. Disc-shaped body; 11. Connecting hole; 2. Bushing; 3. Diaphragm; 4. Pin; 41. Mounting section; 42. Fixing section; 43. Clamping bolt; 44. Fastening nut; 45. First washer; 46. Clamping cover; 47. Second washer. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0025] like Figures 1 to 2As shown in the figure, a kind of membrane pin shaft structure of wind power coupling, including disc body 1, membrane 3 and pin shaft 4, shaft sleeve 2 is installed in membrane, shaft sleeve 2 is detachably connected with pin shaft 4, pin shaft 4 passes through shaft sleeve 2 and is fixed with disc body 1, so as to realize the effect that membrane 3 is fixed with disc body 1 by pin shaft 4, pin shaft 4 includes installation section 41 and fixed section 42, disc body 1 is provided with connecting hole 11 for the interference fit with installation section 41 and with inclination, the minimum diameter of connecting hole 11 is located at the end of disc body 1 away from shaft sleeve 2, the interference fit installation section 41 and connecting hole 11 can ensure the installation strength between pin shaft 4 and disc body 1, since pin shaft 4 passes through shaft sleeve 2, the connecting strength between membrane 3 and disc body 1 is ensured, disc body 1 can select to use brake disc or coupling disc, the difference lies in the different installation positions in coupling and the different functions, so that different parts can be connected by the same structure, so that the above structure is more universal, installation section 41 is provided with the inclination in the same direction with connecting hole 11, the end of installation section 41 is provided with threaded section, threaded nut 44 is threadedly connected on threaded section, the above specific setting of interference fit, threaded section passes through connecting hole 11 to the other side of disc body 1, threaded nut 44 is tightened on threaded section at the other side of disc body 1, with the tightening of threaded nut 44, the fit between installation section 41 and connecting hole 11 gradually interferes, finally reaches the close interference fit after threaded nut 44 is completely tightened, so as to ensure that pin shaft 4 and disc body 1 have high connecting strength.

[0026] As Figures 1 to 2 Shown, threaded section is also provided with second washer 47, second washer 47 is located between disc body 1 and threaded nut 44, second washer 47 not only can increase the contact area between threaded nut 44 and disc body 1, ensure that force can be smoothly transmitted to disc body 1, but also can further utilize clamping effect, acts on threaded nut 44 and disc body 1 reversely, so that pin shaft 4 and disc body 1 have higher connecting strength after force reaches equilibrium.

[0027] As Figures 1 to 2As shown, a clamping cover 46 is provided on the fixed section 42 to abut against the bushing 2. A clamping bolt 43 for fixing the clamping cover 46 is threaded on the fixed section 42. The clamping cover 46 and the clamping bolt 43 cooperate to fix the bushing 2 and the pin 4, thereby fixing the diaphragm 3 and the pin 4. A first washer 45 is provided on the side of the bushing 2 away from the clamping bolt 43. The first washer 45 is used to abut against the disc-shaped body 1 and together with the clamping bolt 43 to clamp the shaft. The first washer 45 can not only improve the connection strength by using the clamping effect, but also keep a certain distance between the diaphragm 3 and the disc-shaped body 1, thereby ensuring that the diaphragm 3 and the disc-shaped body 1 will not interfere, which makes it easier to install and more conducive to normal operation. A clamping cover 46 is also provided between the bushing 2 and the clamping bolt 43. The clamping cover 46 has a similar function to the second washer and can be used to further strengthen the connection strength.

[0028] Installation process: First, put the diaphragm 3 on the bushing 2, then pass the mounting section 41 of the pin 4 through the bushing 2, and then install the clamping cover 46 on the side of the bushing 2 located on the fixed section 42. Tighten the clamping bolt 43 so that the clamping cover 46 is tightly installed on the pin 4. Then, put the first washer 45 on the mounting section 41 of the pin 4. Then, put the mounting section 41 into the connecting hole 11 and let the threaded section pass out from the connecting hole 11. Then, put the second washer 47 on the threaded section and make it abut against the disc-shaped body 1. Tighten the fastening nut 44. During this process, the connecting hole 11 will gradually be press-fitted with the mounting section 41, and the diaphragm 3 will be clamped on the pin 4 by the bushing 2, thereby realizing a firm connection between the diaphragm 3 and the disc-shaped body 1.

[0029] The scope of protection of this utility model includes, but is not limited to, the above embodiments. The scope of protection of this utility model is defined by the claims. Any substitutions, modifications, or improvements to this technology that are easily conceived by those skilled in the art shall fall within the scope of protection of this utility model.

Claims

1. A diaphragm pin structure for a wind turbine coupling, comprising a disc-shaped body (1), a diaphragm (3), and a pin (4), wherein a bushing (2) is installed inside the diaphragm (3), characterized in that: The pin (4) is used to pass through the bushing (2) and be fixedly connected to the disc-shaped body (1). The pin (4) includes an installation section (41) and a fixing section (42). The disc-shaped body (1) is provided with a connecting hole (11) with an angle for interference fit with the installation section (41). The installation section (41) has an angle in the same direction as the connecting hole (11). The end of the installation section (41) is provided with a threaded section, and a fastening nut (44) is threadedly connected to the threaded section.

2. The diaphragm pin structure of a wind turbine coupling as described in claim 1, characterized in that: The fixed section (42) is provided with a clamping cover (46) that abuts against the bushing (2), and the fixed section (42) is threaded with a clamping bolt (43) for fixing the clamping cover (46).

3. The diaphragm pin structure of a wind turbine coupling as described in claim 2, characterized in that: The pin (4) is located between the bushing (2) and the disc-shaped body (1) and a first washer (45) is fitted on it. The first washer (45) is used to abut against the disc-shaped body (1) and together with the clamping cover (46) to clamp the bushing (2).

4. The diaphragm pin structure of a wind turbine coupling as described in claim 1, characterized in that: A second washer (47) is also fitted on the threaded section, and the second washer (47) is located between the disc-shaped body (1) and the fastening nut (44).

5. The diaphragm pin structure of a wind turbine coupling as described in claim 1, characterized in that: The minimum diameter of the connecting hole (11) is located at the end of the disc-shaped body (1) away from the bushing (2).

Images